Title:
MOTOR CONTROL DEVICE AND ELECTRIC PUMP UNIT
Document Type and Number:
WIPO Patent Application WO/2013/100017
Kind Code:
A1
Abstract:
A motor control device is provided with a control unit comprising an excess output suppression control unit that suppresses excess output by reducing the current command value from a superordinate control unit. A control signal output unit obtains a motor control signal by adding the reduction amount of the current command value to the current command value. The excess output suppression control unit comprises a hydraulic pressure-estimating unit that estimates hydraulic pressure on the basis of the electric current and rotational speed of a motor, and a current command value correction amount-calculating unit that outputs the reduction amount for the current command value when the estimated hydraulic pressure is higher than the target hydraulic pressure. Either the target hydraulic pressure or the estimated hydraulic pressure, which are compared using the current command value correction amount-calculating unit, is corrected on the basis of oil temperature information.
Inventors:
KAGAWA HIROKI (JP)
UDA KENGO (JP)
AOKI YASUYUKI (JP)
UDA KENGO (JP)
AOKI YASUYUKI (JP)
Application Number:
PCT/JP2012/083799
Publication Date:
July 04, 2013
Filing Date:
December 27, 2012
Export Citation:
Assignee:
JTEKT CORP (JP)
International Classes:
F04B49/06; F16H61/02
Foreign References:
| JP2004144020A | 2004-05-20 | |||
| JP2010180731A | 2010-08-19 | |||
| JP2002235675A | 2002-08-23 | |||
| JP2002005034A | 2002-01-09 | |||
| JP2002206630A | 2002-07-26 | |||
| JP2010116914A | 2010-05-27 |
Other References:
See also references of EP 2799714A4
Attorney, Agent or Firm:
UENO, HIDEKI (JP)
Ueno Hideki (JP)
Ueno Hideki (JP)
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Claims: