Tech@Edu

Electronic Brake Force Distribution “Electronic brake force distribution (EBD or EBFD) or electronic brake force limitation (EBL) 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, etc. always coupled with anti-lock braking systems (ABS).”  EBD can apply more or less braking pressure to each wheel in order to maximize stopping power whilst maintaining vehicular control. Components of EBD 1. Speed Sensor:  The speed sensor not only calculates the speed of the car, but the speed of the engine also (RPM). One of the scenarios can be that the speed of the wheel might not be the same as the speed of the car. Such a situation can lead to the wheel(s) skidding. The speed sensors calculate the slip ratio and relay it to ECU. 2. Electronic Control Unit:  It is a small chip which collects the data from the speed sensors in each wheel and uses the data to calculate the slip ratio (di

Braking System “ Braking system is an arrangement of various linkages and components (brake lines or mechanical linkages, brake drum or brake disc , master cylinder or fulcrums etc.) that are arranged in such a fashion that it converts the vehicle’s kinetic energy into the heat energy which in turn stops or de accelerate the vehicle.” The conversion of kinetic energy into heat energy is a function of frictional force generated by the frictional contact between brake shoes and moving drum or disc of a braking system. Need of Braking System In an automobile vehicle braking system is needed – 1. To stop the moving vehicle. 2. To de accelerate the moving vehicle. 3. For stable parking of a vehicle either on a flat surface or on a slope. 4. As a precaution for accidents. 5. To prevent the vehicle from any damage due to road conditions. Classification of Braking System 1. On the Basis of Power Source (i) Mechanical braking system (ii) Hydraulic braking system (iii) Air or pneumatic b

Power Steering “The power steering system is the advanced steering system in which the effort required to steer the front wheels of the vehicle side to side is reduced by using intermediate electric or hydraulic devices that multiplies the force applied by the driver through steering wheel in order to achieve smooth and quick directional change of the vehicle.”  History of Power Steering System According to the legend advanced by a serious publication on the history of automobile steering systems, a man by the name of Fitts installed a power steering system on an antique car in 1876. Robert E. Twiford, an American from Pennsylvania, patented the first all-wheel drive system on April 3, 1900, and his patent included a power steering system. Francis W. Davis, an engineering in the Heavy Vehicles division at Pierce-Arrow, invented a concept similar to the one used today in 1926. He offered it to GM, but they determined that it would be too expensive to make and include in mass-market vehi

Steering System “The steering system allow the driver to guide the car along the road & turn left or right as desired.”  The system includes the following:  1. The steering wheel  2. The steering gear  3. The steering linkage  The steering system configuration depends upon the vehicle design (the drive train & suspension system used).  Function of Steering System 1. The primary function of the steering system is to achieve angular motion of the front wheels to negotiate a turn.  2. To provide directional stability of the vehicle when going straight ahead.  3. To minimize wear & tear of the tires.  4. To absorb a major part of the road shocks thereby preventing them to get transmitted to the hands of driver.  5. To provide perfect rolling motion of the road wheels at all times. Requirement of good steering system  1. Very accurate.  2. Easy to handle.  3. Provide directional stability.  4. Multiply the turning effort applied on the steering wheel by the driver.  5. Irr