发明名称 |
VARIABLE DISPLACEMENT PUMP |
摘要 |
A variable displacement pump includes a pumping part and a cam ring for supplying working fluid to a vehicle steering device. The cam ring is arranged radially outside of the pumping part, and configured to move along with a change in eccentricity of the cam ring, wherein the change in eccentricity causes a change in specific discharge rate. A solenoid is configured to control the eccentricity of the cam ring by being driven with an energizing current conformed to a control setpoint. A base setpoint is calculated based on steering angular speed and vehicle speed. The control setpoint is calculated based on the base setpoint and steering angular acceleration in a manner that the control setpoint increases more quickly than the base setpoint when the base setpoint increases in accordance with steering operation of the steering wheel. |
申请公布号 |
US2012199411(A1) |
申请公布日期 |
2012.08.09 |
申请号 |
US201113306558 |
申请日期 |
2011.11.29 |
申请人 |
NONAKA SATOSHI;KIMURA MAKOTO;UNISIA JKC STEERING SYSTEMS CO., LTD. |
发明人 |
NONAKA SATOSHI;KIMURA MAKOTO |
分类号 |
B62D5/06 |
主分类号 |
B62D5/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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