Driving force controlling apparatus for vehicle

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36443105, 180197, 123361, B60K 3102

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active

055196160

ABSTRACT:
To prevent a great variation of a detected wheel velocity for a period of time after a front wheel sensor or a rear wheel sensor for detection of a wheel velocity actually fails until a microcomputer detects the failure, it is determined whether or not an output pulse period of a front wheel sensor is equal to or shorter than a predetermined period. When the output pulse period exceeds the predetermined period, it is determined that there is the possibility that the front wheel sensor may be in failure, thus a front wheel velocity for a predetermined number of control cycles before, or a front wheel velocity before the failure, is adopted as a front wheel velocity of the present control cycle. Also, a rear wheel velocity is calculated in a similar manner. For a time after a failure actually occurs until the failure is detected by a microcomputer, driving force control is not started even if other starting conditions for driving force control are satisfied.

REFERENCES:
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patent: 4764884 (1988-08-01), Noyori
patent: 4866624 (1989-09-01), Nishikawa et al.
patent: 4870582 (1989-09-01), Hoashi et al.
patent: 4947325 (1990-08-01), Iwata et al.
patent: 5201383 (1993-04-01), Kitagawa et al.
patent: 5219212 (1993-06-01), Shimada et al.
patent: 5225982 (1993-06-01), Ito et al.

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