METHOD OF ADJUSTING ROTATION SPEED OF PUMP OF HYDRAULIC POWER STEERING DEVICE ACCORDING TO STEERING SPEED

摘要

PROBLEM TO BE SOLVED: To improve a method for adjusting a rotation speed of a pump driven by an electric motor of a hydraulic power steering device of an automobile according to a steering speed when it is premised on a conventional technology and to easily optimize efficiency of the whole of a device.

SOLUTION: An addition correction value taking into consideration with the efficiency of the whole of the device is added to a required liquid pressure volume flow rate to the maximum value calculated based on the detected steering speed, the target rotation speed of the pump is calculated from the answer and adjustment is performed.

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