This presentation provides an overview of hybrid electric vehicles (HEVs). It defines HEVs as vehicles that use both electricity and fuel for propulsion. The document outlines the history of HEVs and discusses the different types of hybridization including mild, medium, and full hybrid. It describes the main parts of an HEV including the engine, battery, electric motor, controller, and generator. The advantages of HEVs are noted as savings, low emissions, reduced noise, and low maintenance. Disadvantages include higher costs, safety risks, and expensive repairs. The future of HEVs is seen as incorporating the technology into more vehicle types while improving efficiency, safety, and reducing costs.
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.
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.
Architectures of HEVs, series and parallel HEVs, complex HEVs .Plug-in hybrid vehicle, constituents of PHEV, comparison of HEV and PHEV; Fuel Cell vehicles and its constituents.
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.
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.
Architectures of HEVs, series and parallel HEVs, complex HEVs .Plug-in hybrid vehicle, constituents of PHEV, comparison of HEV and PHEV; Fuel Cell vehicles and its constituents.
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.
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.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
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.
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
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
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.
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!
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
2. 2
Image Source: Google Images
Submitted By: Submitted To:
Rupa sharma JB
Contents
What is HEV....?
History
3. 3
Image Source: Google Images
Types of Hybridization
Types of HEV
Parts of HVE vehicle
Advantages of HEV
Disadvantage of HEV
Future Scope
What is HEV…?
4. 4
Image Source: Google Images
A hybrid car is any car that uses both electricity and fuel injection in order
to run.
Conventional Battery Electric Hybrid Electric Car
7. 7
Image Source: Google Images
1830’s
•
Battery electric vehicle invented by Thomas Davenport, Robert Anderson, others - using
non-rechargeable batteries.
1890’s
•
EV’s outsold gas cars 10 to 1, Oldsmobile and Studebaker started as EV companies
started as EV companies.
1904’s
•
Krieger Company builds first hybrid vehicle
1910’s
•
Mass-produced Ford cars undercut hand-built EV’s
•
EV’s persist as status symbols and utility vehicles until Great Depression.
8. 8
Image Source: Google Images
Fig: Historical Hybrid car
Types of Hybridization
1. MILD / Micro Hybridization
They feature idle-stop function
Regenerative braking
Are not capable of using the electric motor to propel the vehicle
These systems are usually 42 volts or less
11. 11
Image Source: Google Images
2. Medium Hybridization
They feature idle-stop function
Regenerative braking
Most are not capable of using the electric motor alone to propel the
vehicle
The electric motor usually assists the engine
Battery voltages are about 144 to 158 volts
Fig: Medium Hybridization
13. 13
Image Source: Google Images
3. Full Hybridization
They feature idle-stop function
Regenerative braking
Most are capable of using the electric motor alone to propel the vehicle
The electric motor also assists the engine
Battery voltages are about 200 to 300 volts
Fig: Full Hybridization
15. 15
Image Source: Google Images
1. Series hybrid
The fuel tank goes to the engine, but the engine
turns a generator.
Then the generator can either charge the batteries
or power an electric motor that drives the
transmission.
The gasoline engine does not directly power the car.
Fig: Series Hybrid
17. 17
Image Source: Google Images
2. Parallel Hybrid
Has a fuel tank that supplies gas to the engine like a
regular car.
It also has a set of batteries that run an electric motor.
Both the engine and electric motor can turn the
transmission at the same time.
Fig: Parallel Hybrid
19. 19
Image Source: Google Images
3. Series-Parallel Hybrid
Series-Parallel type also called Power-split
hybrids.
More beneficial then above hybrid.
Most of the latest vehicle based on this hybrid.
Fig: Series Parallel Hybrid
21. 21
Image Source: Google Images
1. Engine
It’s much same as other vehicles engine, but the size
of hybrid electric vehicle engine is small and it’s
more fuel efficient.
There are two types of engine, mostly used in HEV
vehicle
a. Petrol Engine
b. Diesel Engine
Fig: Engine
23. 23
Image Source: Google Images
It stores the energy generated from gasoline engine or
during regenerative braking, from the electric motor.
There are 3 types of batteries used in HEV vehicles
a. Lead Acid(2.2 volt)
b. Nickel Cadmium (1.2 volt)
c. Lithium-ion(3.7 volt)
Fig: Battery
25. 25
Image Source: Google Images
3. Electrical Motor
It’s power the vehicle at low speed and assist the
gasoline engine when additional power is needed.
Most of the electric machines used in hybrid
vehicles are brushless DC motors (BLDC).
Fig: Electrical Motor
27. 27
Image Source: Google Images
The controller is used to charge the battery or to supply
the power to electric motor.
a. Converts Battery DC to a chopped DC power
b. Can chop in amplitude (DC) or frequency
(AC)
c. Power is based on low voltage input signal
4-20 mA or 0-5V
Fig: Controller
28. 28
Image Source: Google Images
Parts of HEV vehicle
5. Generator
It converts mechanical energy from
engine into electrical energy,
which can be used by electric
motor stored in the battery. It’s also used
33. 33
Hybrids are more expensive than nonhybrids.
Hybrids (in regards to a car accident) have a much higher
risk of exploding because it has a combination of gasoline
and ethanol.
Sometimes they can be pretty ugly.
Parts can be very expensive to repair. (between $1,00,000
and $3,00,000 for a battery).
Slower than petrol powered cars.
More
Expensive
Low Power
Costly
Maintenanc
e
Fig: Disadvantages
34. 34
Future Scope
All the Major Automobile manufactures are working on Hybrid Electrical Vehicle.
Heavy vehicle like trucks will be use hybrid system in future.
Efficiency of hybrid electric vehicle will further increase in future.
Safety features will be add in new generation hybrid car or other vehicle.
Power of car have to increase in future.
Price of vehicle will reduce due to increase in production rate of hybrid electric vehicles.
