four wheel steering configurations with the types of four wheel steering. It also goes through zero turning radius, crab steering, low speed steering and high speed steering.
Electronic Brake force distribution (EBFD)Felis Goja
EBD is an automobile brake technology that automatically varies the amount of force applied to each of a vehicle's wheels based on road conditions, speed, loading on wheel etc.
Four steering system is about the maneuvering of the wheel using all four wheel. Which allows the vehicle to take sharp turn at slow speed and decrease the rollover accident danger at higher speed.
Electronic Brake force distribution (EBFD)Felis Goja
EBD is an automobile brake technology that automatically varies the amount of force applied to each of a vehicle's wheels based on road conditions, speed, loading on wheel etc.
Four steering system is about the maneuvering of the wheel using all four wheel. Which allows the vehicle to take sharp turn at slow speed and decrease the rollover accident danger at higher speed.
Autonomous Parallel Parking Methodology for Ackerman Configured VehiclesIDES Editor
Parallel parking is challenge for all drivers say
amateurs or the experts. An automatic car parking system is a
solution to this ordeal. This vehicular technology has been
implemented using many other systems but a cost effective,
simple and accurate solution will be greatly appreciated. This
paper explains in detail a simple and precise autonomous carparking
algorithm for Ackerman steering configuration. A twopart
trajectory-planning algorithm consists of the steering
planning and simple distance calculations. The limits of
vehicle mechanism and drive torque are taken into account.
Simulation results are presented to illustrate the application
of the proposed algorithm. The algorithm uses simple
geometry for its path planning and odometry. The system uses
sonar sensors and wheel encoders for its perception. This
sensed data is interpreted in the processor of the vehicle. As
per the trajectory determined, the vehicle parks itself into
the parking space. Simulation and experiment results shows
that using this algorithm the parking maneuver will become
more safe, efficient and fast.
Basic parts of steering system:
Steering wheel, column and shaft – driver inputs
Steering gear – changes direction – rotating steering wheel into linear motion.
Steering linkage – connects steering gear to steering arms
Ball joints – allows movement of steering components and suspension
An approach to parallel parking and zero turning radius in automobilesIjrdt Journal
Conventional steering mechanism involves either the use of Ackerman or Davis steering systems. The disadvantage associated with these systems is the minimum turning radius that is possible for the steering action. This difficulty that is associated with the conventional methods of steering is eliminated by employing a four wheel steering system. In this system, the wheels connected to the front axles are turned opposite to each other, and so are the wheels connected to the rear axle. The wheels on the on left half vehicle rotate in one direction and the ones on the right half of the vehicle rotate in the opposite direction. This arrangement of the wheels enables the vehicle to turn 360 degrees, without moving from the spot, i.e. the vehicle has zero turning radius. This helps in maneuvering the vehicle in tight spaces such as parking lots and within small compounds.
A Four wheel steering system also known as Quadra steering system. In this paper, both front
wheel and rear wheels can be steered according to speed other vehicle and space available for
turning. Quadra steer gives full size vehicle greater ease while driving at low speed, improves
stability, handling and control at higher speed.
Production-built cars tend to under steer or, in few instances, overseer. If a car could
automatically compensate for an under steer overseer problem, the driver would enjoy nearly
neutral steering under varying conditions. Four wheel systems is a serious effort on the part of
automotive design engineers to provide near-neutral steering.
This system finds application in off-highway vehicles such as forklifts, agricultural and
construction equipment mining machinery also in Heavy Motor Vehicles. It is also useful in
passenger cars.
It improves handling and helps the vehicle make tighter turns. This system is used to minimize
the turning radius.
SELECTION OF GEAR BOX FOR VARIOUS MECHANICAL SYSTEMSANDIP THORAT
Automotive gearboxes are used to reduce load on the engine by manipulating torque and speed. They have the option to select one of several different gear ratios.
Once the engine has reached a number of revolutions per minute, it is advisable to increase the gear to reduce the engine rpm to reduce wear on the engine, allow more control, and greater speeds, better acceleration, and better fuel economy.
Automotive gearbox also have the provision to do the opposite ie provide an increase in output shaft speed with a reduction of torque.
Most gearboxes are used to increase torque & reduce the speed of a output shaft. This produces a mechanical advantage .
Automotive gearboxes are used to reduce load on the engine by manipulating torque and speed. They have the option to select one of several different gear ratios.
Once the engine has reached a number of revolutions per minute, it is advisable to increase the gear to reduce the engine rpm to reduce wear on the engine, allow more control, and greater speeds, better acceleration, and better fuel economy.
Automotive gearbox also have the provision to do the opposite ie provide an increase in output shaft speed with a reduction of torque.
Most gearboxes are used to increase torque & reduce the speed of a output shaft. This produces a mechanical advantage .
Automotive gearboxes are used to reduce load on the engine by manipulating torque and speed. They have the option to select one of several different gear ratios.
Once the engine has reached a number of revolutions per minute, it is advisable to increase the gear to reduce the engine rpm to reduce wear on the engine, allow more control, and greater speeds, better acceleration, and better fuel economy.
Automotive gearbox also have the provision to do the opposite ie provide an increase in output shaft speed with a reduction of torque.
Most gearboxes are used to increase torque & reduce the speed of a output shaft. This produces a mechanical advantage .
Four-wheel steering (or all-wheel steering) is a system employed by some vehicles to improve steering response, increase vehicle stability while maneuvering at high speed, or to decrease turning radius at low speed.
What is rack and pinion steering mechanismManish Nepal
What Is Rack And Pinion Steering Mechanism? | How Rack And Pinion Steering System Works?
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Working of Four Wheel Steering System in Hindi | Advantages, and Disadvantages of 4-Wheel Steering
How Power Steering System Works?
In this presentation, we have discussed a very important feature of BMW X5 cars… the Comfort Access. Things that can significantly limit its functionality. And things that you can try to restore the functionality of such a convenient feature of your vehicle.
Core technology of Hyundai Motor Group's EV platform 'E-GMP'Hyundai Motor Group
What’s the force behind Hyundai Motor Group's EV performance and quality?
Maximized driving performance and quick charging time through high-density battery pack and fast charging technology and applicable to various vehicle types!
Discover more about Hyundai Motor Group’s EV platform ‘E-GMP’!
What Does the Active Steering Malfunction Warning Mean for Your BMWTanner Motors
Discover the reasons why your BMW’s Active Steering malfunction warning might come on. From electrical glitches to mechanical failures and software anomalies, addressing these promptly with professional inspection and maintenance ensures continued safety and performance on the road, maintaining the integrity of your driving experience.
5 Warning Signs Your BMW's Intelligent Battery Sensor Needs AttentionBertini's German Motors
IBS monitors and manages your BMW’s battery performance. If it malfunctions, you will have to deal with an array of electrical issues in your vehicle. Recognize warning signs like dimming headlights, frequent battery replacements, and electrical malfunctions to address potential IBS issues promptly.
Symptoms like intermittent starting and key recognition errors signal potential problems with your Mercedes’ EIS. Use diagnostic steps like error code checks and spare key tests. Professional diagnosis and solutions like EIS replacement ensure safe driving. Consult a qualified technician for accurate diagnosis and repair.
"Trans Failsafe Prog" on your BMW X5 indicates potential transmission issues requiring immediate action. This safety feature activates in response to abnormalities like low fluid levels, leaks, faulty sensors, electrical or mechanical failures, and overheating.
Comprehensive program for Agricultural Finance, the Automotive Sector, and Empowerment . We will define the full scope and provide a detailed two-week plan for identifying strategic partners in each area within Limpopo, including target areas.:
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• Scope: Provide support solutions to enhance agricultural productivity and sustainability.
• Target Areas: Polokwane, Tzaneen, Thohoyandou, Makhado, and Giyani.
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• Scope: Develop collaborations with automotive service providers to improve service quality and business operations.
• Target Areas: Polokwane, Lephalale, Mokopane, Phalaborwa, and Bela-Bela.
3. Empowerment : Focusing on Women Empowerment
• Scope: Provide business support support and training to women-owned businesses, promoting economic inclusion.
• Target Areas: Polokwane, Thohoyandou, Musina, Burgersfort, and Louis Trichardt.
We will also prioritize Industrial Economic Zone areas and their priorities.
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To be eligible:
1. You must have a registered business and operate in Limpopo
2. Generate revenue
3. Sectors : Agriculture ( primary and secondary) and Automative
Women and Youth are encouraged to apply even if you don't fall in those sectors.
𝘼𝙣𝙩𝙞𝙦𝙪𝙚 𝙋𝙡𝙖𝙨𝙩𝙞𝙘 𝙏𝙧𝙖𝙙𝙚𝙧𝙨 𝙞𝙨 𝙫𝙚𝙧𝙮 𝙛𝙖𝙢𝙤𝙪𝙨 𝙛𝙤𝙧 𝙢𝙖𝙣𝙪𝙛𝙖𝙘𝙩𝙪𝙧𝙞𝙣𝙜 𝙩𝙝𝙚𝙞𝙧 𝙥𝙧𝙤𝙙𝙪𝙘𝙩𝙨. 𝙒𝙚 𝙝𝙖𝙫𝙚 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙥𝙡𝙖𝙨𝙩𝙞𝙘 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙪𝙨𝙚𝙙 𝙞𝙣 𝙖𝙪𝙩𝙤𝙢𝙤𝙩𝙞𝙫𝙚 𝙖𝙣𝙙 𝙖𝙪𝙩𝙤 𝙥𝙖𝙧𝙩𝙨 𝙖𝙣𝙙 𝙖𝙡𝙡 𝙩𝙝𝙚 𝙛𝙖𝙢𝙤𝙪𝙨 𝙘𝙤𝙢𝙥𝙖𝙣𝙞𝙚𝙨 𝙗𝙪𝙮 𝙩𝙝𝙚 𝙜𝙧𝙖𝙣𝙪𝙡𝙚𝙨 𝙛𝙧𝙤𝙢 𝙪𝙨.
Over the 10 years, we have gained a strong foothold in the market due to our range's high quality, competitive prices, and time-lined delivery schedules.
What Does the PARKTRONIC Inoperative, See Owner's Manual Message Mean for You...Autohaus Service and Sales
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Why Is Your BMW X3 Hood Not Responding To Release CommandsDart Auto
Experiencing difficulty opening your BMW X3's hood? This guide explores potential issues like mechanical obstruction, hood release mechanism failure, electrical problems, and emergency release malfunctions. Troubleshooting tips include basic checks, clearing obstructions, applying pressure, and using the emergency release.
Things to remember while upgrading the brakes of your carjennifermiller8137
Upgrading the brakes of your car? Keep these things in mind before doing so. Additionally, start using an OBD 2 GPS tracker so that you never miss a vehicle maintenance appointment. On top of this, a car GPS tracker will also let you master good driving habits that will let you increase the operational life of your car’s brakes.
What Exactly Is The Common Rail Direct Injection System & How Does It WorkMotor Cars International
Learn about Common Rail Direct Injection (CRDi) - the revolutionary technology that has made diesel engines more efficient. Explore its workings, advantages like enhanced fuel efficiency and increased power output, along with drawbacks such as complexity and higher initial cost. Compare CRDi with traditional diesel engines and discover why it's the preferred choice for modern engines.
3. INTRODUCTION
Four wheel steering is a system employed by vehicles
that allows the rear wheels to turn for maneuvering,
rather than just follow the front wheels.
It reduces the turning radius by 20% as well as the space
required for turning. It also enables to change road lane
while driving even at high speed.
At lower speeds, turning the rear wheels in the opposite
direction to the front wheels results in a smaller turning
radius and faster cornering responses. At high speeds,
turning all four wheels in concert improves high-speed
stability.
7. CONTROLLING OF REAR WHEELS
At slow speeds, the rear
wheels are turned in the
opposite direction of the front
wheels. This can lessen the
turning radius by
approximately 20%.
LOW SPEEDS(0-40 km/h)
8. CONTROLLING OF REAR WHEELS
At faster speeds on the
highway, the rear wheels
are turned in the same
direction as the front
wheels. This improves
lane changing
maneuverability and is
particularly beneficial
for vehicles towing a
trailer. HIGHER SPEEDS
(GREATER THAN 80 km/h)
12. MECHANICAL 4WS
• The mechanical 4WS
uses two separate
steering gears to
control the front and
rear wheels.
13. HYDRAULIC 4WS
The hydraulic 4WS
uses a two-way
hydraulic cylinder to
turn both the
wheels in the same
direction.
14. ELECTROHYDRAULIC 4WS
The electro/hydraulic
4WS combine
computer electronic
controls with
hydraulics to make the
system sensitive to
both steering angle
and road speeds
15. ZERO TURNING RADIUS
Zero turning radius
Require no space for
turning
On-spot Turning
16.
17. MODERN CARS WITH ACTIVE FOUR WHEEL
STEERING: -
•Acura RLX (P-AWS)
•BMW 850CSi (only Euro spec models)
•BMW 7-Series (2009 onward, part of sport package)
•BMW 5-series (2011 onwards, Integral Active Steering
option)
•Toyota Camry / Vista JDM 1988–1999 (Optional)
•Toyota Carina ED / Toyota Corona EXiV (world's first
dual-mode switchable 2WS to 4WS)
•Toyota Celica (option on 5th and 6th generation, 1990–
1993 ST183 and 1994–1997 ST203) (Dual-mode, high and
low speed)
•Toyota Soarer (UZZ32)
18. CONCLUSION
Requires less steering input for corrections.
Entire vehicle moves in one direction.
Greater Stability in maneuvers.
Turn in crab like manner rather than curve.
Reduces effecting turning radius.
4WS is complex and expensive.
19. REFERENCES
Suspension and Steering Systems, Design of modern
terrain vehicles
By- Shpetim lajqi
Stanislav Pehan
Automotive Mechanics
BY- Crouse and Anglin