Title:
ELECTRIC PUMP DEVICE, AND POWER STEERING DEVICE
Document Type and Number:
Japanese Patent JP2007237952
Kind Code:
A
Abstract:
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.
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.
COPYRIGHT: (C)2007,JPO&INPIT
Inventors:
MATSUMURA TATSUO
Application Number:
JP2006063850A
Publication Date:
September 20, 2007
Filing Date:
March 09, 2006
Export Citation:
Assignee:
HITACHI LTD
International Classes:
B62D5/07
Domestic Patent References:
| JP2005178580A | 2005-07-07 | |||
| JP2005349883A | 2005-12-22 | |||
| JP2004082864A | 2004-03-18 |
Attorney, Agent or Firm:
Masamichi Ayata