This project outlines the design, construction, and testing of a hybrid motorcycle. The concept combines an internal combustion engine with an electric hub motor and battery system. The electric motor provides propulsion up to 50 km/hr, after which the petrol engine engages. When running on petrol, the battery recharges. The goal is to achieve a range of 150km for Rs. 100 worth of fuel. Components like the brushless DC hub motor and lithium-ion batteries were selected, modeled, assembled and tested. Future work will optimize the controller programming and load testing to refine the hybrid system performance.
Have you pulled your car up to the gas/petrol pump lately and been shocked by the high
price of gasoline? As the pump clicked past Rs1400 or 1500, maybe you thought about
trading in that SUV for something that gets better mileage. Or maybe you are worried
that your car is contributing to the greenhouse effect. Or maybe you just want to have
the coolest car on the block. Currently, there is a solution for all this problems, it's the
hybrid electric vehicle.
The vehicle is lighter and roomier than a purely electric vehicle, because there is less
need to carry as many heavy batteries. The internal combustion engine in hybrid-electric
is much smaller and lighter and more efficient than the engine in a conventional vehicle.
In fact, most automobile manufacturers have announced plans to manufacture their own
hybrid versions. Hybrid electric vehicles are all around us. Most of the locomotives we
see pulling trains are diesel-electric hybrids. Cities like Seattle have diesel-electric
buses -- these can draw electric power from overhead wires or run on diesel when they
are away from the wires. Giant mining trucks are often diesel-electric hybrids.
Submarines are also hybrid vehicles -- some are nuclear-electric and some are dieselelectric. Any vehicle that combines two or more sources of power that can directly or
indirectly provide propulsion power is a hybrid.
An EV is a shortened acronym for an electric vehicle. EVs are vehicles that are either partially or fully powered on electric power. Electric vehicles have low running costs as they have fewer moving parts for maintenance and also very environmentally friendly as they use little or no fossil fuels (petrol or diesel).
HYBRID ELECTRIC VEHICLES
1. INTRODUCTION
A hybrid electric vehicle (HEV) has two types of energy storage units, electricity and fuel.
Electricity means that a battery (sometimes assisted by ultracaps) is used to store the energy, and that an electromotor (from now on called motor) will be used as traction motor.
Fuel means that a tank is required, and that an Internal Combustion Engine (ICE, from now on called engine) is used to generate mechanical power, or that a fuel cell will be used to convert fuel to electrical energy. In the latter case, traction will be performed by the electromotor only. In the first case, the vehicle will have both an engine and a motor.
Depending on the drive train structure (how motor and engine are connected), we can distinguish between parallel, series or combined HEVs.
Depending on the share of the electromotor to the traction power, we can distinguish between mild or micro hybrid (start-stop systems), power assist hybrid, full hybrid and plug-in hybrid.
Depending on the nature of the non-electric energy source, we can distinguish between combustion (ICE), fuel cell, hydraulic or pneumatic power, and human power. In the first case, the ICE is a spark ignition engines (gasoline) or compression ignition direct injection (diesel) engine. In the first two cases, the energy conversion unit may be powered by gasoline, methanol, compressed natural gas, hydrogen, or other alternative fuels.
Motors are the "work horses" of Hybrid Electric Vehicle drive systems. The electric traction motor drives the wheels of the vehicle. Unlike a traditional vehicle, where the engine must "ramp up" before full torque can be provided, an electric motor provides full torque at low speeds. The motor also has low noise and high efficiency. Other characteristics include excellent "off the line" acceleration, good drive control, good fault tolerance and flexibility in relation to voltage fluctuations.
The front-running motor technologies for HEV applications include PMSM (permanent magnet synchronous motor), BLDC (brushless DC motor), SRM (switched reluctance motor) and AC induction motor.
A main advantage of an electromotor is the possibility to function as generator. In all HEV systems, mechanical braking energy is regenerated.
The maximum operational braking torque is less than the maximum traction torque; there is always a mechanical braking system integrated in a car.
The battery pack in a HEV has a much higher voltage than the SIL automotive 12 Volts battery, in order to reduce the currents and the I2R losses.
Accessories such as power steering and air conditioning are powered by electric motors instead of being attached to the combustion engine. This allows efficiency gains as the accessories can run at a constant speed or can be switched off, regardless of how fast the combustion engine is running. Especially in long haul trucks, electrical power steering saves a lot of energy.
Have you pulled your car up to the gas/petrol pump lately and been shocked by the high
price of gasoline? As the pump clicked past Rs1400 or 1500, maybe you thought about
trading in that SUV for something that gets better mileage. Or maybe you are worried
that your car is contributing to the greenhouse effect. Or maybe you just want to have
the coolest car on the block. Currently, there is a solution for all this problems, it's the
hybrid electric vehicle.
The vehicle is lighter and roomier than a purely electric vehicle, because there is less
need to carry as many heavy batteries. The internal combustion engine in hybrid-electric
is much smaller and lighter and more efficient than the engine in a conventional vehicle.
In fact, most automobile manufacturers have announced plans to manufacture their own
hybrid versions. Hybrid electric vehicles are all around us. Most of the locomotives we
see pulling trains are diesel-electric hybrids. Cities like Seattle have diesel-electric
buses -- these can draw electric power from overhead wires or run on diesel when they
are away from the wires. Giant mining trucks are often diesel-electric hybrids.
Submarines are also hybrid vehicles -- some are nuclear-electric and some are dieselelectric. Any vehicle that combines two or more sources of power that can directly or
indirectly provide propulsion power is a hybrid.
An EV is a shortened acronym for an electric vehicle. EVs are vehicles that are either partially or fully powered on electric power. Electric vehicles have low running costs as they have fewer moving parts for maintenance and also very environmentally friendly as they use little or no fossil fuels (petrol or diesel).
HYBRID ELECTRIC VEHICLES
1. INTRODUCTION
A hybrid electric vehicle (HEV) has two types of energy storage units, electricity and fuel.
Electricity means that a battery (sometimes assisted by ultracaps) is used to store the energy, and that an electromotor (from now on called motor) will be used as traction motor.
Fuel means that a tank is required, and that an Internal Combustion Engine (ICE, from now on called engine) is used to generate mechanical power, or that a fuel cell will be used to convert fuel to electrical energy. In the latter case, traction will be performed by the electromotor only. In the first case, the vehicle will have both an engine and a motor.
Depending on the drive train structure (how motor and engine are connected), we can distinguish between parallel, series or combined HEVs.
Depending on the share of the electromotor to the traction power, we can distinguish between mild or micro hybrid (start-stop systems), power assist hybrid, full hybrid and plug-in hybrid.
Depending on the nature of the non-electric energy source, we can distinguish between combustion (ICE), fuel cell, hydraulic or pneumatic power, and human power. In the first case, the ICE is a spark ignition engines (gasoline) or compression ignition direct injection (diesel) engine. In the first two cases, the energy conversion unit may be powered by gasoline, methanol, compressed natural gas, hydrogen, or other alternative fuels.
Motors are the "work horses" of Hybrid Electric Vehicle drive systems. The electric traction motor drives the wheels of the vehicle. Unlike a traditional vehicle, where the engine must "ramp up" before full torque can be provided, an electric motor provides full torque at low speeds. The motor also has low noise and high efficiency. Other characteristics include excellent "off the line" acceleration, good drive control, good fault tolerance and flexibility in relation to voltage fluctuations.
The front-running motor technologies for HEV applications include PMSM (permanent magnet synchronous motor), BLDC (brushless DC motor), SRM (switched reluctance motor) and AC induction motor.
A main advantage of an electromotor is the possibility to function as generator. In all HEV systems, mechanical braking energy is regenerated.
The maximum operational braking torque is less than the maximum traction torque; there is always a mechanical braking system integrated in a car.
The battery pack in a HEV has a much higher voltage than the SIL automotive 12 Volts battery, in order to reduce the currents and the I2R losses.
Accessories such as power steering and air conditioning are powered by electric motors instead of being attached to the combustion engine. This allows efficiency gains as the accessories can run at a constant speed or can be switched off, regardless of how fast the combustion engine is running. Especially in long haul trucks, electrical power steering saves a lot of energy.
Have you pulled your car up to the gas/petrol pump lately and been shocked by the high
price of gasoline? As the pump clicked past Rs1400 or 1500, maybe you thought about
trading in that SUV for something that gets better mileage. Or maybe you are worried
that your car is contributing to the greenhouse effect. Or maybe you just want to have
the coolest car on the block. Currently, there is a solution for all this problems, it's the
hybrid electric vehicle.
The vehicle is lighter and roomier than a purely electric vehicle, because there is less
need to carry as many heavy batteries. The internal combustion engine in hybrid-electric
is much smaller and lighter and more efficient than the engine in a conventional vehicle.
In fact, most automobile manufacturers have announced plans to manufacture their own
hybrid versions. Hybrid electric vehicles are all around us. Most of the locomotives we
see pulling trains are diesel-electric hybrids. Cities like Seattle have diesel-electric
buses -- these can draw electric power from overhead wires or run on diesel when they
are away from the wires. Giant mining trucks are often diesel-electric hybrids.
Submarines are also hybrid vehicles -- some are nuclear-electric and some are dieselelectric. Any vehicle that combines two or more sources of power that can directly or
indirectly provide propulsion power is a hybrid.
Creating a PowerPoint presentation on the "Types of Electric Vehicles" can be a useful way to educate your audience about the various electric vehicle (EV) technologies available. Here's a short description for each type of electric vehicle that you can include in your presentation:
Slide 1: Title
Title: "Types of Electric Vehicles"
Slide 2: Introduction
Briefly introduce the topic and its importance.
Mention the environmental and economic benefits of electric vehicles.
Slide 3: Battery Electric Vehicles (BEVs)
Describe BEVs as vehicles that run solely on electric power.
Highlight their zero-emission nature.
Mention examples like Tesla Model 3 and Nissan Leaf.
Slide 4: Plug-in Hybrid Electric Vehicles (PHEVs)
Explain PHEVs as vehicles that combine an electric motor and an internal combustion engine.
Emphasize their ability to drive on electric power and gasoline.
Mention examples like the Chevrolet Volt.
Slide 5: Hybrid Electric Vehicles (HEVs)
Define HEVs as vehicles with both an electric motor and an internal combustion engine.
Explain how they use regenerative braking to charge the battery.
Mention examples like the Toyota Prius.
Slide 6: Fuel Cell Electric Vehicles (FCEVs)
Describe FCEVs as vehicles that use hydrogen fuel cells to generate electricity to power the electric motor.
Emphasize their zero-emission nature and fast refueling times.
Mention examples like the Toyota Mirai.
Slide 7: E-Bikes and E-Scooters
Explain that electric bicycles (e-bikes) and electric scooters (e-scooters) are becoming popular forms of electric mobility.
Discuss their role in last-mile transportation.
Slide 8: Commercial Electric Vehicles
Mention electric buses, trucks, and delivery vans.
Explain how commercial EVs contribute to reducing emissions in urban areas.
Slide 9: Electric Vehicle Charging Infrastructure
Highlight the importance of charging infrastructure for EV adoption.
Discuss the types of chargers (Level 1, Level 2, DC fast chargers).
Slide 10: Government Incentives
Explain government incentives and subsidies for electric vehicle adoption.
Mention tax credits, rebates, and other benefits.
Slide 11: Environmental Benefits
Discuss how electric vehicles contribute to reducing air pollution and greenhouse gas emissions.
Highlight the positive impact on local air quality.
Slide 12: Cost of Ownership
Compare the total cost of ownership of electric vehicles to traditional gasoline vehicles.
Mention savings on fuel and maintenance.
Slide 13: Challenges and Future Outlook
Address challenges such as range anxiety, charging infrastructure gaps, and battery disposal.
Discuss the future outlook of electric vehicles and advancements in technology.
Slide 14: Conclusion
A brief Seminar Presentation on the Hybrid Electric Vehicle (HEV) Powertrain Components, Architecture and Modes of Hybridisation. Also includes the Classification of HEV on the basis of Energy Flow.
types of the hybrid vehicle are discussed, series, parallel, complex, series-parallel, micro-hybrid, mild hybrid, full hybrid, and complex hybrid is discussed
Regenerative Braking System
Regenerative braking is a way of taking the wasted energy from the process of slowing down a car and using it to recharge the car's batteries.
Introduction
Literature Review
Recent Research And
Development In Hess
Case Study
Regenerative Braking System In
Bus
Regenerative Braking
System In Railways
Conclusion
Future Scope
References
Fundamentals of electric and hybrid vehiclesA Reddy
The growth and development of motor vehicles were faster than human population. The attention on electric hybrid vehicle was focused in the wake of search for alternative non petroleum fuels. In the electrical car the engine is replaced by an electric motor, fuel cells, etc.
Have you pulled your car up to the gas/petrol pump lately and been shocked by the high
price of gasoline? As the pump clicked past Rs1400 or 1500, maybe you thought about
trading in that SUV for something that gets better mileage. Or maybe you are worried
that your car is contributing to the greenhouse effect. Or maybe you just want to have
the coolest car on the block. Currently, there is a solution for all this problems, it's the
hybrid electric vehicle.
The vehicle is lighter and roomier than a purely electric vehicle, because there is less
need to carry as many heavy batteries. The internal combustion engine in hybrid-electric
is much smaller and lighter and more efficient than the engine in a conventional vehicle.
In fact, most automobile manufacturers have announced plans to manufacture their own
hybrid versions. Hybrid electric vehicles are all around us. Most of the locomotives we
see pulling trains are diesel-electric hybrids. Cities like Seattle have diesel-electric
buses -- these can draw electric power from overhead wires or run on diesel when they
are away from the wires. Giant mining trucks are often diesel-electric hybrids.
Submarines are also hybrid vehicles -- some are nuclear-electric and some are dieselelectric. Any vehicle that combines two or more sources of power that can directly or
indirectly provide propulsion power is a hybrid.
Creating a PowerPoint presentation on the "Types of Electric Vehicles" can be a useful way to educate your audience about the various electric vehicle (EV) technologies available. Here's a short description for each type of electric vehicle that you can include in your presentation:
Slide 1: Title
Title: "Types of Electric Vehicles"
Slide 2: Introduction
Briefly introduce the topic and its importance.
Mention the environmental and economic benefits of electric vehicles.
Slide 3: Battery Electric Vehicles (BEVs)
Describe BEVs as vehicles that run solely on electric power.
Highlight their zero-emission nature.
Mention examples like Tesla Model 3 and Nissan Leaf.
Slide 4: Plug-in Hybrid Electric Vehicles (PHEVs)
Explain PHEVs as vehicles that combine an electric motor and an internal combustion engine.
Emphasize their ability to drive on electric power and gasoline.
Mention examples like the Chevrolet Volt.
Slide 5: Hybrid Electric Vehicles (HEVs)
Define HEVs as vehicles with both an electric motor and an internal combustion engine.
Explain how they use regenerative braking to charge the battery.
Mention examples like the Toyota Prius.
Slide 6: Fuel Cell Electric Vehicles (FCEVs)
Describe FCEVs as vehicles that use hydrogen fuel cells to generate electricity to power the electric motor.
Emphasize their zero-emission nature and fast refueling times.
Mention examples like the Toyota Mirai.
Slide 7: E-Bikes and E-Scooters
Explain that electric bicycles (e-bikes) and electric scooters (e-scooters) are becoming popular forms of electric mobility.
Discuss their role in last-mile transportation.
Slide 8: Commercial Electric Vehicles
Mention electric buses, trucks, and delivery vans.
Explain how commercial EVs contribute to reducing emissions in urban areas.
Slide 9: Electric Vehicle Charging Infrastructure
Highlight the importance of charging infrastructure for EV adoption.
Discuss the types of chargers (Level 1, Level 2, DC fast chargers).
Slide 10: Government Incentives
Explain government incentives and subsidies for electric vehicle adoption.
Mention tax credits, rebates, and other benefits.
Slide 11: Environmental Benefits
Discuss how electric vehicles contribute to reducing air pollution and greenhouse gas emissions.
Highlight the positive impact on local air quality.
Slide 12: Cost of Ownership
Compare the total cost of ownership of electric vehicles to traditional gasoline vehicles.
Mention savings on fuel and maintenance.
Slide 13: Challenges and Future Outlook
Address challenges such as range anxiety, charging infrastructure gaps, and battery disposal.
Discuss the future outlook of electric vehicles and advancements in technology.
Slide 14: Conclusion
A brief Seminar Presentation on the Hybrid Electric Vehicle (HEV) Powertrain Components, Architecture and Modes of Hybridisation. Also includes the Classification of HEV on the basis of Energy Flow.
types of the hybrid vehicle are discussed, series, parallel, complex, series-parallel, micro-hybrid, mild hybrid, full hybrid, and complex hybrid is discussed
Regenerative Braking System
Regenerative braking is a way of taking the wasted energy from the process of slowing down a car and using it to recharge the car's batteries.
Introduction
Literature Review
Recent Research And
Development In Hess
Case Study
Regenerative Braking System In
Bus
Regenerative Braking
System In Railways
Conclusion
Future Scope
References
Fundamentals of electric and hybrid vehiclesA Reddy
The growth and development of motor vehicles were faster than human population. The attention on electric hybrid vehicle was focused in the wake of search for alternative non petroleum fuels. In the electrical car the engine is replaced by an electric motor, fuel cells, etc.
BLDC motor is the permanent magnet synchronous motor designed to have a trapezoidal back emf. Due to rugged construction, less control complexity, higher power density, variable speed over a wide range and flexibility to select the rotor construction suitable for particular application, it is being viewed as an alternative for conventional a.c. motors right from residential to commercial & aerospace systems. Rotation of BLDC motor is achieved by energizing the stator phases in a sequence, which depends on the rotor position. Hall sensors are used to detect the exact position of the rotor. This paper presents design of BLDC motor drive. For the purpose of demonstration, the popularly used loads are considered for industrial application, electric traction system.
Fuzzy Logic Controller for Four Quadrant Operation of Three Phase BLDC MotorIJTET Journal
Abstract— Brushless DC (BLDC) motors are one of the electrical drives that are rapidly gaining popularity in industries. In this paper, proposed system gives a three phase Brushless DC (BLDC) in all four quadrant operation by using fuzzy logic controller. The average settling time delay in conventional PI controller drastically overcome by the fuzzy logic controller in order to achieve the constant speed of the motor in any one of the direction respectively. The back EMF is generated during the reverse motoring. In quadrant operation the breaking is applied leads to waste the kinetic energy as heat energy. Utilization of wasted kinetic energy is stored in a battery possible by proposed scheme. The four quadrant operations are Forward Motoring, Forward Braking, Reverse motoring and Reverse Braking. In forward driving the input feed to the BLDC motor up to the set time fastened. Subsequently the Forward Braking is applied then the motor speed reduced to zero. This helps to create a back emf and that is being converted to DC and stored in a battery. Then the Reverse Motoring is applied for rotating the motor at the reverse direction. At last the Reverse Braking is applied it also create the back emf and the converted energy stored in a battery. Rotor position is obtained by the Hall Sensor signal. The system consist of Input source, Fuzzy logic controller, Three phase inverter, Relay, Brushless DC motor (BLDC), Battery, Hall sensor.
A BL-CSC Converter fed BLDC Motor Drive with Power Factor Correctioniosrjce
This paper presents a power factor correction (PFC) based bridgeless-canonical switching cell
(BL-CSC) converter fed brushless DC (BLDC) motor drive. The proposed BL-CSC converter operating in a
discontinuous inductor current mode is used to achieve a unity power factor at the AC mains using a single
voltage sensor. The speed of BLDC motor is controlled by varying the DC bus voltage of the voltage source
inverter (VSI) feeding BLDC motor via a PFC converter. Therefore, the BLDC motor is electronically
commutated such that the VSI operates in fundamental frequency switching for reduced switching losses.
Moreover, the bridgeless configuration of CSC converter offers low conduction losses due to partial elimination
of diode bridge rectifier at the front end. The proposed configuration shows a considerable increase in
efficiency as compared to the conventional scheme,a combination of switch, capacitor (C1) and diode (D) is
known as a ‘canonical switching cell’ and this cell combined with an inductor (Li) and a DC link capacitor (Cd)
is known as a CSC converter.With proper design and selection of parameters, this combination is used to
achieve PFC operation when fed by a single phase supply via a DBR (Diode Bridge Rectifier) and a DC filter.
The trend in the motor applications is to reduce weight and volume by increasing the efficiency. Because of the advantage of high efficiency and high density, interest in brushless DC motors and drives is increasing. Unlike DC motors, the brushless DC (BLDC) motors require inverter circuit and position detector. In this paper, we deal with the optimization of the BLDC motor, the inverter, and the position detector. The inverter is optimized to be mounted on the BLDC motor. This paper deals primarily with the design and implementation aspects of the BLDC motor and the integrated drive circuit. Experimental results for the prototype of the BLDC motor with integrated dirve circuit in the laboratory are presented to validate the feasibility.
Brushless DC motor Drive during Speed regulation with Current ControllerIJERA Editor
Brushless DC Motor (BLDC) is one of the best electrical drives that have increasing popularity, due to their
high efficiency, reliability, good dynamic response and very low maintenance. Due to the increasing demand for
compact & reliable motors and the evolution of low cost power semiconductor switches and permanent magnet
(PM) materials, brushless DC motors become popular in every application from home appliances to aerospace
industry. The conventional techniques for controlling the stator phase current in a brushless DC drive are
practically effective in low speed and cannot reduce the commutation torque ripple in high speed range. This
paper presents the PI controller for speed control of BLDC motor. The output of the PI controllers is summed
and is given as the input to the current controller. The BLDC motor is fed from the inverter where the rotor
position and current controller is the input. The complete model of the proposed drive system is developed and
simulated using MATLAB/Simulink software. The operation principle of using component is analysed and the
simulation results are presented in this to verify the theoretical analysis.
Speed Torque Characteristics of BLDC Motor with Load Variationsijtsrd
Nowadays, Brushless DC motors are in high demand due to its high efficiency and other significant features. As there is no use of brushes, this type of motor is having many advantages like high torque to inertia ratio, high speed, and power density and low cost compared to conventional brushed motors. This paper determines speed torque characteristics of brushless dc motor with different load variation by using the proposed method and the developed controller. The variation in motor speed torque characteristics for half load, full load, and overloading condition is analyzed. This research has been conducted to analyze the model and compared with the simulation results which are very useful in studying the performance of motor system. The simulation is carried out in MATLAB Simulink environment. Ishita Gupta | Akash Varshney "Speed-Torque Characteristics of BLDC Motor with Load Variations" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-4 , June 2020, URL: https://www.ijtsrd.com/papers/ijtsrd31197.pdf Paper Url :https://www.ijtsrd.com/engineering/electrical-engineering/31197/speedtorque-characteristics-of-bldc-motor-with-load-variations/ishita-gupta
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
1. HYBRID MOTORCYCLE
1) KHATRI ROHAN RAJESHBHAI 090190119004
2) THAKOR JAYRAJSINH SANTOSHSINH
090190119014
3) CHAHWALA VIJAY HARISHBHAI
090190119037
4) PATIL SAGAR KAPTAN
090190119063 UNDER THE GUIDANCE OF
Prof. M.M.MADHIKAR
MECH. DEPT., G.E.C., VALSAD
2. Hybrid motorcycle
Petrol Tank
Bat
teri
es
Controller
BL
DC
Mo
tor
ngine
Petrol E
rive
Chain D
Petrol Engine Along With An Electric Motor
3. What Is Hybrid ?
Hybrid Vehicle is a an automobile which combines more than one method of
propulsion system.
It can be anything from a petrol with electric motor, petrol with an hydraulic
motor, diesel with electric or even solar power.
In fact, we already see around us so many hybrid cars and motorcycles running
on CNG with Petrol and even Motorcycles with LPG. They are nothing but form
of a Parallel Hybrid system .
4. Aim of our Project
This project outlines the design, construction and testing of a 1000W DC brushless
motor controller for use in a light electric vehicle. Specific attention was paid to the
layout of the motor controller to ensure high reliability, ease of manufacture and
lightweight construction without compromising efficiency.
The concept is to club the two technologies of an Internal Combustion Engine with the
Electric main drive.
This we thrive to achieve by using the electric hub motor installed in the wheel and a
programmable controller which will have the maximum speed of the motor to 50km/hr.,
once the motorcycle goes above 50km/hr., the controller cuts of the current to the motor
and the fuel is induced into the petrol engine and then the normal commuting is possible.
Once the vehicle is running on petrol, the battery will be regenerated for further usage
and can be fully charged with a 220v ac supply and Dynamo in the wheel.
The motor used is a BLDC (Brush Less DC Motor) hub motor and we target to achieve 150
km of mileage within Rs. 100 worth the fuel (combining petrol and electric power). The
portability of the batteries is a high value concerned and shall be met with proper result
in this project.
5. Project Development Process
Market assessment for the current I.C engine efficiency, Electric vehicle
Efficiency and positive – negative effects.
The survey was conducted over petrol motorcycles and electric scooters
available in the market. The cost per km was calculated with an
assumption of the future prices and the maintenance cost of these vehicles
and later compared with the hybrid motorcycle project.
Bikes comparison Model name Cost/km
LPG Converted Bike Passion converted Rs 0.85/ 1km
Electric Scooter YO bike Rs 0.5/ 1km
Petrol Bike Passion Rs 1/ 1km
Hybrid electric Bike Passion hybrid Rs 1/ 7km (for electric drive)
6. Feasibility of the project as per current market
condition
Although there has been development in the diesel fuel with an advent of bio
diesel and LPG conversion kits in the market but still there is almost no
competition in the market with this kind of hybrid motorcycle.
The sale if motorcycle is still increasing and in future so will the fuel prices, for
that the hybrid concept seems quite ideal as it not only decreases the per km
cost of the consumer but also enhances the range of the drive.
Below listed is an article report from www.zigwheels.com of the motorcycle
sales from mid-2012. From which we can determine the future necessity of
hybrid.
“Two-wheeler manufacturer Honda Motorcycle & Scooter India (HMSI) today
reported a 38.65 per cent growth in total sales for August at 2,22,768 units.
Motorcycle sales jumped by 69.44 per cent to 1,04,316 units in August this year
as against 61,562 units in the same month last year, HMSI said in a statement.”
7. Parameters responsible for project components
based on end user Requirement terms
These requirements were necessary in order to find the complete set of calculations
on which the project can be made, unless we know what our need we can’t develop a
good project is.
Range: 60 km to 80 km on electric power
Speed: Maximum speed 40-50km/hr. (as per the city driving condition)
Torque: Enough to carry a passenger and a rider with a tank full of petrol
(300kg approximately ( + or – 30 kg).
8. Motor Power Study
In order to obtain the best power from the motor, we have to have a
motor with a higher watt specification, that is we need to increase the
stator winding keeping the voltage constant.
For that we did a complete survey of the motors available in the
market but we found none matching our need so we decided to make
one by increasing the winding for the existing motor.
Motors available in market along with their power and range specification:
Motor Power V/I Range(km) No. Of Poles Price in Rs
250 W 48/24 50-65 2 10 k
300 W 48/24 60-70 2 12 k
700 W 48/24 65 4 17 k
1100 W 48/24 50-60 6 20 k +
* K =1000
9. What is a Hub Motor ?
It is also called wheel motor, wheel hub drive, hub motor or in-wheel motor is
an electric motor that is incorporated into the hub of a wheel and drives it
directly.
Hub motor electromagnetic fields are supplied to the stationary windings of
the motor. The outer part of the motor follows, or tries to follow, those fields,
turning the attached wheel.
In a brushed motor, energy is transferred by brushes contacting the rotating
shaft of the motor which results in loss of power in the form of heat.
Energy is transferred in a brushless motor electronically, eliminating physical
contact between stationary and moving parts. Although brushless motor
technology is more expensive, most are more efficient and longer-lasting than
brushed motor systems.
10. Electric Motor Defined
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Second level Brush less Direct
Current (BLDC) motors
Third level in which permanent
Fourth level magnets on the rotor
Fifth level create a magnetic field
which interact with
synchronous stator
current.
Basic Terminology
Brushless motors consist of a stationary part, the stator, and a rotating part, the
rotor. The space between the stator and the rotor is called the air gap. The stator
carries the windings and the rotor carries the magnets. Brushless motors can have
inside rotors or outside rotors. These two cases are shown in Figure. In either case,
the stator and windings are stationary, allowing direct winding access without
brushes or slip rings.
11. Motor Rotor Position
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Second level
Third level
Fourth level
Fifth level
The rotation of a motor can be calculated by using EMF sensing to estimate rotor
position. Field-oriented control goes a step further by using a finer rotor
position estimate to calculate motor currents into the rotating frame. The
rotating frame is defined by two axes, “d” for magnetic axis and “q” for rotor
axis.
12. Rotor angle calculation
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Second level
Third level
Fourth level
Fifth level
General equation for calculating winding angle for throttle.
ᶿe =mod ( P.ᶿm.360)ᶿm-ᶿ0.
Where ᶿe= electrical angle.
ᶿm= mechanical angle and ᶿ0= offset angle between electric and mechanical angle.
13. The rotor can be on the inside or the outside. In either case, the stator, which
contains windings, does not rotate and the rotor, which contains magnets, does.
Click to edit Master text styles In most brushless motors,
windings are placed in slots in
Second level a laminated steel structure
called the CORE. The purpose
Third level of the steel is to channel more
Fourth level magnetic flux through the
Fifth level winding than would
Be possible with a non-
ferrous core. The section of
TOOTH
Difference steel between two slots is
called a tooth. Three-phase
CORE motors have a number of slots
(and teeth) that is evenly
divisible by three.
14. Conclusion and Testing of Motor
Output
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Second level
Third level
Fourth level
Fifth level
The torque per unit amp of the front scooter The torque per unit amp of the axial motor
motor at 20A, plotted within the optimal at 80A, plotted within the optimal 60º
60º rotor electrical angle for BLDC control. rotor electrical angle for BLDC control. It
It remains fairly constant over this interval. remains fairly constant over this interval.
The future work is to achieve the solution between the present condition and
ideal condition and that’s the reason we will vary the current supply and try
to be as close as to the ideal condition.
15. Single Stator CORE developed to test the winding method
The original motor design
pursued in this case study used
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trapezoidal stator core wedges, Second level
wound with flat copper strips.
Third level
Fourth level
The stator core segment was
Fifth level
produced by stacking H-shaped
laminations of silicon steel,
which were laser cut to
specification. Though expensive
in prototype quantities, the
shapes would require only
simple stamp tooling to make in
large volume
16. Disassembly of Motor Components
Stator Plates
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Second level
Third level
Fourth level
Fifth level Stator Housing Cover
Permanent Magnets
Rotor Plate Windings on Stator
17. Assembly Of Motor
CORE, Stator and First run test using
Copper wire Windings rubber Tube on Motor
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Second level
Third level
Fourth level
Fifth level
18. Initial CAD Modeling for small capacity
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Second level
Third level
Fourth level
Fifth level
Exploded View of Assembly carried on CREO Elements 5.0
19. Sectional view of completed Motor design
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Second level
Third level
Fourth level
Fifth level
20. Sectional view of motor with reduction Gear
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Second level
Third level
Fourth level Reduction
Fifth level Gear
21. Side View showing the motor by creating
transparency on the motor housing
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Second level
Third level
Fourth level
Fifth level
22. Assembly of motor with the wheel and braking
system
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Second level
Third level
Fourth level
Fifth level
23. Battery System
A lead acid battery goes through
three life phases, called
formatting, peak and decline
Formatting is most important for deep-
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cycles to reach peak capacity
Second level
Third level Peak is the state at which we can obtain
the maximum power of battery.
Fourth level
Fifth level In Decline state, the efficiency of battery
goes down and then replacement is the
only option available.
24. Controller
Controller is a brain of the complete hybrid system. Its function is to receive data
from various sensors and provide Electrical power as per the throttle position and
angle. It decides the fuel mode that is, to run the motorcycle on petrol or to run it
On electrical power. It checks the battery voltage and current value and notifies
the user about the charging time.
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Second level
Third level
Fourth level
Fifth level
25. Controller
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Second level
Third level
Fourth level
Fifth level
26. Advantages and Disadvantages
Advantages Disadvantages
Lower cost/km Higher kerb weight
Higher Mileage Centre of Gravity is shifted
Practicality Speed limitation
Ease of Recharging
Very less Maintenance cost
27. Future Work Highlights.
1. Controller programming with optimizing parameters on
Throttle Angle
Motor Rotational Angle
Wheel RPM
Battery Discharge
Brake cut-off
Speed Limiter
2. Motor Optimizing
3. Load Conditions testing as per the Kerb weight (weight without rider)
4. Load conditions on maximum jerks and slippery conditions in rain
5. Maximum Torque variation as per the load
6. Dynamo Recharging Capability
7. Heat Dissipation From the motor
8. Throttle limiting position
9. I.C. Engine cut-off Threshold value
10. Optimum Evaluation and feasibility on the parameters set