DRIVE CIRCUIT ANOMALY DIAGNOSING DEVICE

WIPO Patent Application WO/2019/021849

A1

A drive circuit (20) anomaly diagnosing device (F1) of the present invention performs anomaly diagnosis on a drive circuit (20) comprising: a power supply line (PSL) along which a solenoid (Sol) is disposed; a main switch (MS) disposed on a power supply side of the solenoid (Sol); a first diode (D1) disposed in a protection line (SKL) connecting an interval between the main switch (MS) and the solenoid (Sol) to ground (GND), with a forward direction corresponding to the direction from the ground side to the power supply side; and a first capacitor (C1) interposed in a first line (L1) part way along the power supply line (PSL) and connecting an interval between a protection line (SKL) and the solenoid (Sol) to ground (GND), the drive circuit (20) supplying power to the solenoid (Sol). The anomaly diagnosing device (F1) performs the anomaly diagnosis on the basis of a current detected by means of a first current sensor (1) disposed upstream of the main switch (MS) in the power supply line (PSL).

JP5148452	Inductor drive circuit
JPS5430466	ELECTROMAGNET DRIVING CIRCUIT

KOJIMA HIROYUKI (JP)
AWANO KOICHIRO (JP)

PCT/JP2018/026423

January 31, 2019

July 13, 2018

Click for automatic bibliography generation  

KYB CORP (JP)

H01F7/18; B60G17/0185; H03K17/00

WO2013191267A1	2013-12-27
WO2015182294A1	2015-12-03
WO2017002617A1	2017-01-05

JP2013159204A	2013-08-19
JPH1096480A	1998-04-14
JP2009283719A	2009-12-03
JP2002324710A	2002-11-08
JP2017065469A	2017-04-06
JP6397536B1	2018-09-26

ISHIKAWA Ken et al. (JP)

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