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Patent Searching and Data


Title:
回路異常検出装置
Document Type and Number:
Japanese Patent JP6844595
Kind Code:
B2
Abstract:
A circuit fault detection apparatus includes an AD conversion circuit, a corrector, first and second determination devices, and a fault detector. The AD conversion circuit detects a voltage corresponding to a current or a voltage applied to the circuit fault detection element, and converts the voltage to a digital value. The corrector corrects a measurement value to a corrected measurement value. The first determination device determines whether or not the electric circuit has the fault, based on a comparison between an uncorrected measurement value and an uncorrected threshold value. The second determination device determines whether the electric circuit has the fault, based on a comparison between the corrected measurement value and a corrected threshold value. The fault detector detects the fault in the electric circuit, based on a condition that at least one of the first or second determination devices determines that the electric circuit has the fault.

Inventors:
Yuichiro Nakano
Youhei Nakakura
Application Number:
JP2018174046A
Publication Date:
March 17, 2021
Filing Date:
September 18, 2018
Export Citation:
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Assignee:
ROBERT BOSCH GMBH
International Classes:
H03K17/08; G01R19/165; H02M1/08; H03K17/687
Domestic Patent References:
JP2012109912A
JP2005151631A
JP2011125101A
JP9119853A
JP2014219239A
JP2008058084A
JP2006271098A
JP2014137272A
JP2017011826A
JP6209519A
JP2007135274A
JP5888459B1
JP2016123220A
JP2017198537A
Foreign References:
US20130294121
Attorney, Agent or Firm:
Kazuyuki Yahagi
Taihei Nonobe
Takanori Kubo