Hydraulic power steering device for motor car, has controller ensuring correspondence between high and low power levels depending on operating state of combustion engine of motor car and/or vehicle speed
摘要
<p>The device has an electric pump coupled with a pump drive motor operated in a defined high power level or in a defined low power level. A controller is provided to control the pump drive motor and ensures correspondence between the high power level and the low power level depending on an operating state of an internal combustion engine of a motor car and/or vehicle speed. A data map of the low power stage and/or the high power stage is predetermined. An independent claim is also included for a method for controlling an electrical pump drive motor of a hydraulic power steering device.</p>
