Title:
VEHICULAR ANTITHEFT DEVICE
Document Type and Number:
Japanese Patent JP2611661
Kind Code:
B2
Abstract:
PURPOSE: To prevent a vehicle from being capable of running, even if ECU is destroied, when a back up device for ECU for controlling at least a fuel injection and ignition timing and a vehicular antitheft device are installed together.
CONSTITUTION: A rolling code preserved in a second ECU72 and the rolling code preserved in a first ECU71 are compared with each other by a comparison means 74. As this comparison result, an indication means 75 indicates, to the first ECU71, the continuance of a start permission when the rolling codes make matching each other and a start prohibition when the rolling codes no matching each other respectively. Meantime, the comparison result is stored in a holding means 76. When a judge means 77 judges that trouble is generated in the first ECU71 and this stored value shows its matching with the rolling code, the operation of the first ECU71 is backed up by a backup means 78.
Inventors:
Working Hiroshi
Sadao Kobayashi
Hiroshi Funakoshi
Sadao Kobayashi
Hiroshi Funakoshi
Application Number:
JP12909894A
Publication Date:
May 21, 1997
Filing Date:
June 10, 1994
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
B60R25/04; B60R25/24; F02D17/04; F02D45/00; F02N15/00; (IPC1-7): B60R25/04; F02D45/00; F02N15/00
Attorney, Agent or Firm:
Masaki Goto (1 person outside)
Previous Patent: VERTICAL DIRECTION DECIDING METHOD/DEVICE FOR ORIGINAL
Next Patent: OPERATION MANAGEMENT SYSTEM FOR NETWORK MANAGEMENT EQUIPMENT
Next Patent: OPERATION MANAGEMENT SYSTEM FOR NETWORK MANAGEMENT EQUIPMENT