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How Much Do You Know About Electric Power Steering Systems?

8 Questions

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How Much Do You Know About Electric Power Steering Systems?

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Questions and Answers

What is the main advantage of EPS systems over hydraulic power steering systems?

Reduced vehicle weight and complexity (correct)

Better fuel efficiency

Improved steering wheel position sensor

Higher power output

What are the two basic types of EPS systems?

Brushless and brushed

Rack-mounted and column-mounted (correct)

Hydraulic and electrohydraulic

Belt-driven and gear-driven

What is the function of the EPS ECU in the EPS system?

To control the power steering motor (correct)

To receive a vehicle speed message from the PCM

To service the steering shaft torque sensor

To generate diagnostic trouble codes

What is the difference between EPS systems that operate on 12 volts and those that operate on 42 volts?

The amount of power output Signup and view all the answers

What type of power steering system is used on the Chevrolet/GMC parallel hybrid truck and the Mini Cooper?

Electrohydraulic power steering (EHPS Signup and view all the answers

What is the main component that the PSCM controls in the EPS system?

The power steering motor Signup and view all the answers

Can the steering shaft torque sensor and the steering wheel position sensor be serviced separately from each other or from the steering column assembly?

No Signup and view all the answers

What type of faults can EPS systems generate diagnostic trouble codes (DTCs) for?

Chassis-related faults Signup and view all the answers

Study Notes

All HEV and EV vehicles use electric power steering (EPS) systems.
EPS systems replace hydraulic components with an electric motor to provide power assist effort.
There are two basic types of EPS systems: rack-mounted and column-mounted.
EPS systems have advantages such as reduced vehicle weight and complexity, and improved cold weather starting.
EPS systems include components such as the EPS ECU, steering torque sensor, and power steering motor.
EPS systems can operate on 12 volts or 42 volts with an electronic controller and a brushless DC motor as an actuator.
The PSCM controls the power steering motor and receives a vehicle speed message from the PCM.
The steering shaft torque sensor and the steering wheel position sensor are not serviced separately from each other or from the steering column assembly.
Electrohydraulic power steering (EHPS) is used on some vehicles, such as the Chevrolet/GMC parallel hybrid truck and the Mini Cooper.
EPS systems can generate diagnostic trouble codes (DTCs) for chassis-related faults or data communication faults.

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Description

Test your knowledge on electric power steering systems with this informative quiz! From the types of EPS systems to their advantages and components, this quiz covers it all. See how much you know about EPS and EHPS, as well as diagnostic trouble codes and more. Whether you're an automotive technician or simply interested in learning more about EPS, this quiz is for you!