Title:
CRANK ANGLE SENSOR FAILURE DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/176623
Kind Code:
A1
Abstract:
Provided is a crank angle sensor failure detection device that detects failures with increased accuracy without increasing the complexity of the structure or the like. The crank angle sensor failure detection device comprises a crank shaft (C) of an engine (E), a crank angle sensor (62) that outputs a pulse signal according to the rotation of the crank shaft (C), a cranking determination sensor (60, 64) that determines that the crank shaft is cranking by detecting a periodic fluctuation which is generated in one cycle of the engine (E), and a control unit (100) that performs failure detection of the crank angle sensor (62), wherein the control unit (100) determines that the crank angle sensor (62) has failed if it is detected, on the basis of the output signal of the cranking determination sensor (60, 64), that the crank shaft (C) is rotating, and no pulse signal is output from the crank angle sensor (62). The cranking determination sensor (60) is an intake pressure sensor that detects the pressure of an intake pipe (48) of the engine (E).
Inventors:
FURUSATO KOICHI (JP)
KOBAYASHI MASAKI (JP)
TAJIMA KATSUKI (JP)
SAKAGUCHI KAZUHIKO (JP)
SUZUKI YUKI (JP)
URA TAKANORI (JP)
TAMANOI RYUSUKE (JP)
KOBAYASHI MASAKI (JP)
TAJIMA KATSUKI (JP)
SAKAGUCHI KAZUHIKO (JP)
SUZUKI YUKI (JP)
URA TAKANORI (JP)
TAMANOI RYUSUKE (JP)
Application Number:
PCT/JP2020/009275
Publication Date:
September 10, 2021
Filing Date:
March 04, 2020
Export Citation:
Assignee:
HONDA MOTOR CO LTD (JP)
International Classes:
F02D45/00
Foreign References:
| JPH0968090A | 1997-03-11 | |||
| JPH03221808A | 1991-09-30 | |||
| JP2001082240A | 2001-03-27 |
Attorney, Agent or Firm:
SAKAMOTO Kiyotaka et al. (JP)
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