Power Steering Systems

electric power steering, power steering system, power steering sensor 

Electric Power Steering System Sensors and Power ICs

Electronic Power Steering (EPS) systems are becoming prevalent in automotive systems and are quickly replacing hydraulic assist power steering. The move to EPS systems is driven by the necessity for improving overall fuel efficiency and reducing system cost in automobiles. EPS systems employ an electric motor, current sensors, voltage regulator, motor driver, and magnetic position sensors to replace a hydraulic based system that requires a pump, hoses, and fluids. A hydraulic system tends to be constantly driven to maintain fluid pressure resulting in a constant load on the engine. Whereas in an EPS based system, the electric motor is only driven when needed, resulting in better fuel economy.

Allegro provides a full complement of devices for use in EPS systems. It has a long history in the automotive industry and provides cutting edge technology in meeting the needs of EPS systems. Allegro can supply Hall-effect sensor ICs for torque and position sensing, power supply ICs for powering the EPS system, brushed and brushless motor controllers, and current sensor ICs for monitoring the system.

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