Title:
LOAD CURRENT CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/060136
Kind Code:
A1
Abstract:
Provided is a load current control device capable of selectively using a plurality of feedback controls depending on the situation. In the load current control device, a feedback circuit unit (4) generates, on the basis of a target current value (11) that is input and a detection current value (16) in accordance with a detection result from a current detection circuit (13), and using a feedback loop for a first feedback control, a PWM signal (24) for controlling a current that flows through a solenoid (3). A feedback circuit unit (5) generates, on the basis of the target current value (11) and the detection current value (16), a PWM signal (25) for controlling the current that flows through the solenoid (3) using a feedback loop for a second feedback control different from the above feedback loop. A selection circuit (26) selects one of the PWM signal (24) or the PWM signal (25) that has been generated.
Inventors:
KURIMOTO HIROFUMI (JP)
WATANABE MITSUHIKO (JP)
OYAMA KATSUYA (JP)
ISHIDA RYOSUKE (JP)
HOSHINO KENICHI (JP)
WATANABE MITSUHIKO (JP)
OYAMA KATSUYA (JP)
ISHIDA RYOSUKE (JP)
HOSHINO KENICHI (JP)
Application Number:
PCT/JP2014/077122
Publication Date:
April 30, 2015
Filing Date:
October 10, 2014
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
G05B11/36; F16D27/118; F16D48/06; G05B7/02; G05B9/03
Foreign References:
| JPH05324001A | 1993-12-07 | |||
| JPH11308107A | 1999-11-05 | |||
| JP2012048447A | 2012-03-08 | |||
| JP2006221558A | 2006-08-24 | |||
| JP2005189902A | 2005-07-14 | |||
| JP2004206515A | 2004-07-22 | |||
| JPH09244701A | 1997-09-19 | |||
| JP2006230038A | 2006-08-31 |
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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