Electrohydraulic Power Steering Lecture 5 Day 2-Class 2
Introduction Electrohydraulic steering can refer to A hydraulic power steering system driven with an electric motor A power steering system that uses wires to sense the steering wheel input and actuate the steering valve
Electric Motor An electric motor can be used to power the steering pump instead of the engine Lowers fuel consumption Allows for more flexibility of design
Sizing electric motors Electric motors are sized by horsepower We need to determine the horsepower required to drive our pump Horsepower should be around 0.25 HP A 1 horsepower motor would be much too large for our space considerations
Example of electric horsepower sizing
SKF Electro-hydraulic Steering
Considerations for E-H System Design Simulation of end stops Operational environment Safety Steering functions Force feedback
E-H Valve