Invention Grant
- Patent Title: Solenoid control device
- Patent Title (中): 电磁阀控制装置
-
Application No.: US13777013Application Date: 2013-02-26
-
Publication No.: US08934211B2Publication Date: 2015-01-13
- Inventor: Atsushi Takeshita , Hisaaki Wakao , Kiyoshige Kato , Kazuhiro Murakami
- Applicant: JTEKT Corporation
- Applicant Address: JP Osaka-Shi
- Assignee: JTEKT Corporation
- Current Assignee: JTEKT Corporation
- Current Assignee Address: JP Osaka-Shi
- Agency: Oliff PLC
- Priority: JP2012-049327 20120306; JP2012-095493 20120419
- Main IPC: H01H47/32
- IPC: H01H47/32 ; H01H47/02 ; H01F7/18

Abstract:
A solenoid control device executes feedback control such that a drive current for a solenoid follows a target current, by driving, through PWM, a MOSFET provided on a power supply line to the solenoid. An overcurrent detection circuit that outputs an overcurrent detection signal when the drive current for the solenoid reaches an overcurrent determination current value is provided, and it is determined whether an overcurrent is generated. Whether a short-circuit occurs between both terminals of the solenoid is determined by monitoring whether the overcurrent detection circuit is repeating an output of the overcurrent detection signal and a stop of the output of the overcurrent detection signal.
Public/Granted literature
- US20130235505A1 SOLENOID CONTROL DEVICE Public/Granted day:2013-09-12
Information query