Title:
CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2015220954
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a control device which judges an abnormality after judging the transient state and the steady state of a motor current.SOLUTION: The control device includes: switching means for outputting predetermined power to a connected load; current detection means for detecting a current which flows through the load; target current calculation means for calculating the target current value of the load; control means for calculating, based on the detection current and the target current value detected by the current detection means, a command value to make a detection current coincident with the target current value, and generating a PWM signal for PWM controlling the switching means on the basis of the command value, to output the PWM signal to the switching means; current monitor means for transmitting an OFF signal to switch OFF the PWM signal to the switching means when a current value which flows through the load is a predetermined threshold or greater; and judgment means for judging whether the transmission of the OFF signal is the transient state or the steady state, to judge to be abnormal on judgment of the steady state.
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Inventors:
YOKOYAMA ATSUAKI
Application Number:
JP2014105275A
Publication Date:
December 07, 2015
Filing Date:
May 21, 2014
Export Citation:
Assignee:
NISSAN MOTOR
International Classes:
H02H7/085; H02H7/00; H02P27/06
Domestic Patent References:
| JPH08107602A | 1996-04-23 | |||
| JPH01185125A | 1989-07-24 | |||
| JP2000287493A | 2000-10-13 | |||
| JP2002119083A | 2002-04-19 | |||
| JP2011151986A | 2011-08-04 | |||
| JPH0270221A | 1990-03-09 | |||
| JPH04108491A | 1992-04-09 | |||
| JPH06269194A | 1994-09-22 | |||
| JPH0891239A | 1996-04-09 | |||
| JPH09168227A | 1997-06-24 | |||
| JPH10194137A | 1998-07-28 | |||
| JPH10309097A | 1998-11-17 |
Foreign References:
| US20130083434A1 | 2013-04-04 |
Attorney, Agent or Firm:
Eternal patent business corporation