Vishay Electric Power Steering (EPS) Solutions

Vishay Electric Power-Assisted Steering (EPS) Solutions use electric motors to provide directional control to the driver, without any hydraulic systems. Sensors detect the motion and torque of the steering column and a computer module applies assistive power via an electric motor. The motor is coupled directly to either the steering gear or steering column. Most EPS systems have a variable assist, which provides more assistance as the speed of a vehicle decreases, and less assistance from the system during high-speed situations. This functionality requires a delicate balance of power and control. In the event of a component failure, a mechanical linkage such as a rack and pinion serves as a backup similar to that of hydraulic systems. The EPS system is gradually replacing hydraulic steering systems and is likely to become mainstream among automotive manufacturers. Vishay's broad product line includes components for power supply (SMPS), input signal conditioning, power stage, and vehicle communication functions.