Title:
CONTROL DEVICE AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2020/255787
Kind Code:
A1
Abstract:
Failure diagnosis of a communication blocking function can be reliably performed. A control device 1 has: a CPU 7 that controls communication with another control device; a monitoring unit 11 that monitors the CPU 7; and a CAN driver 2 having a transmission unit 4 that transmits a signal to the other control device on the basis of an instruction from the CPU 7, a reception unit 5 that receives a signal from the other control device and transmits the reception result to the CPU 7, and a mode control unit 6 that switches between a normal mode for operating the transmission unit 4 or the reception unit 5 on the basis of the instruction from the monitoring unit 11, and a reception mode for operating only the reception unit 5. When the mode control unit 6 is switched to the reception mode, the CPU 7 sends a diagnosis dedicated signal 16 of the mode control unit 6 to the transmission unit 4, transmits a signal from the transmission unit 4, and performs a diagnosis of the mode control unit 6 on the basis of whether the signal based on the diagnosis dedicated signal 16 is received by the CPU7.
Inventors:
ARAKAWA KEI (JP)
Application Number:
PCT/JP2020/022618
Publication Date:
December 24, 2020
Filing Date:
June 09, 2020
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H04L12/40; B60R16/023; H04L12/28
Foreign References:
| JP2011189918A | 2011-09-29 | |||
| US20120158240A1 | 2012-06-21 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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