Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle diagnosis or maintenance indication
Patent
1996-11-20
1999-11-16
Nguyen, Tan Q.
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle diagnosis or maintenance indication
701 31, 701 33, 701 34, 39518309, 39518401, F02D 4500, G06F 1130
Patent
active
059873655
ABSTRACT:
Disclosed is an electronic control apparatus which performs various kinds of controls associated with the driving of a vehicle. This electronic control apparatus has two electronic control units (ECUs) that are functionally assigned to associated various kinds of controls including the engine control and that independently execute the associated controls. Each ECU has a main central processing unit (CPU) and a sub CPU. The main CPU and sub CPU monitor the operational states of the other. When the local ECU is normal, the main CPU sends a run pulse signal to the mating ECU via a communication line. When the main CPU and sub CPU are normal, each ECU sends another run pulse signal to the mating ECU via the communication line. Each ECU monitors the two run pulse signals sent from the other ECU to determine an abnormality in the mating ECU.
REFERENCES:
patent: 4881227 (1989-11-01), Buhren
patent: 5436837 (1995-07-01), Gerstung et al.
Nguyen Tan Q.
Toyota Jidosha & Kabushiki Kaisha
LandOfFree
Electronic control apparatus for vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electronic control apparatus for vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic control apparatus for vehicle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1336724