Title:
漏電判定装置
Document Type and Number:
Japanese Patent JP6464752
Kind Code:
B2
Abstract:
A ground-fault determination apparatus, which is for use in a vehicle power supply system including a DC power source and a DC supply circuit, includes an acquisition unit that applies an AC signal to the DC supply circuit through a series connection of a resistor and a capacitor to acquire a peak value of the AC signal divided by a resistance of the resistor and an insulation resistance of the DC supply circuit, a ground-fault determination unit that determines presence of a ground-fault based on a comparison between a determination threshold and the peak value, an estimation unit that estimates at least one of a maximum output voltage of the DC supply circuit and a common capacitance between the DC supply circuit and a vehicle body, and a setting unit that sets the determination threshold based on at least one of the maximum output voltage and the common capacitance.
Inventors:
Mizoguchi morning road
Mizoguchi Hayabusa
Mizoguchi Hayabusa
Application Number:
JP2015002857A
Publication Date:
February 06, 2019
Filing Date:
January 09, 2015
Export Citation:
Assignee:
株式会社デンソー
International Classes:
G01R31/02; B60L3/00; H01M10/48; H02J7/00
Domestic Patent References:
| JP2014155329A | ||||
| JP2011234536A | ||||
| JP200557961A |
Foreign References:
| EP0751396A1 | ||||
| US5382946 |
Attorney, Agent or Firm:
Tsuyoshi Yamada
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita