发明名称 ELECTRIC PUMP DEVICE, AND POWER STEERING DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To provide an electric pump driving device capable of discharging consistent pressure even if a pump driving load is changed according to a driving state. <P>SOLUTION: The electric pump driving device comprises a pump for feeding liquid pressure, an electric motor for driving the pump, an electric motor control means for outputting a drive signal to the electric motor, a rotational speed measurement means for measuring the rotational speed of the pump or the electric motor, and a correction means for correcting the driving signal based on the rotational speed measured by the rotational speed measurement means. <P>COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007237952(A) 申请公布日期 2007.09.20
申请号 JP20060063850 申请日期 2006.03.09
申请人 HITACHI LTD 发明人 MATSUMURA TATSUO
分类号 B62D5/07 主分类号 B62D5/07
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