Title:
固着診断装置および固着診断方法
Document Type and Number:
Japanese Patent JP7392755
Kind Code:
B2
Abstract:
A sticking diagnosis apparatus for diagnosing a presence of sticking at a positive-electrode relay and at a negative-electrode relay, the sticking diagnosis apparatus including: an obtaining section that obtains, a first voltage value that is a voltage between a point downstream of the positive-electrode relay and a point upstream of the negative-electrode relay and a second voltage value that is a voltage of a diagnosis circuit provided in parallel to the negative-electrode relay; a determination section that when the first voltage value is greater than or equal to a first threshold, determines that the positive-electrode relay is in a state in which the positive-electrode relay remains in the closed state, and when the second voltage value is less than or equal to a second threshold, determines that the negative-electrode relay is in a state in which the negative-electrode relay remains in the closed state.
Inventors:
Futoshi Yamane
Takuya Kikuchi
Kenta Kameda
Takuya Kikuchi
Kenta Kameda
Application Number:
JP2022048954A
Publication Date:
December 06, 2023
Filing Date:
March 24, 2022
Export Citation:
Assignee:
Isuzu Motors Limited
International Classes:
H01H47/00; G01R31/00; H01H9/54; H02J7/00
Domestic Patent References:
| JP2007165253A | ||||
| JP2022545423A | ||||
| JP201610263A | ||||
| JP2017117618A |
Foreign References:
| US20190187211 | ||||
| KR1020220042794A |
Attorney, Agent or Firm:
Patent Attorney Corporation Washida International Patent Office
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