Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication
Patent
1999-07-02
2000-12-19
Chin, Gary
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
701 74, 701 75, 702 56, 702148, 180197, B60R 1600, G01P 1100
Patent
active
061637424
ABSTRACT:
A vehicle velocity detecting device is provided for detecting vehicle velocity of a vehicle. In the device, an average of driving wheels' speeds Vw.sub.Dave and an acceleration/deceleration V'w.sub.i of each wheel are calculated. When the average Vw.sub.Dave is less than a designated high wheel speed Vw.sub.Hi of 20 km/h or so and at least one of driving wheels' acceleration/deceleration V'w.sub.DL and V'w.sub.DR is more than a designated low-frequency noise value V'w.sub.LO of 1G or so, the third wheel speed Vw.sub.3rd from the largest wheel speed is set as the vehicle velocity V.sub.SP. When three or more acceleration/deceleration V'w.sub.i are together more than a designated high-frequency noise value V'w.sub.Hi of 5G or so, the wheel speed detected in the past is set as the vehicle velocity V.sub.SP. In either case, the vehicle velocity detecting method by the device is not withdrawn unless the wheel speed Vw.sub.i is less than a designated high wheel speed Vw.sub.LO or unless the average Vw.sub.Dave is more than the designated high wheel speed Vw.sub.Hi and the acceleration/deceleration V'w.sub.i is less than the designated high-frequency noise value V'w.sub.Hi.
REFERENCES:
patent: 3874741 (1975-04-01), Schnaibel et al.
patent: 4468740 (1984-08-01), Beck et al.
patent: 4497026 (1985-01-01), Braschel et al.
patent: 4670852 (1987-06-01), Masaki et al.
patent: 4982806 (1991-01-01), Yoshizawa et al.
patent: 5099443 (1992-03-01), Higashimata et al.
patent: 5185702 (1993-02-01), Okubo
patent: 5748503 (1998-05-01), Saeki et al.
patent: 5819193 (1998-10-01), Burgdorf et al.
Chin Gary
Nissan Motor Co,. Ltd.
LandOfFree
Vehicle velocity detecting device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vehicle velocity detecting device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle velocity detecting device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-277476