System for controlling driving torque of vehicle

Details System for controlling driving torque of vehicle System for controlling driving torque of vehicle

1995-11-29

1998-03-24

Louis-Jacques, Jacques

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Indication or control of braking, acceleration, or deceleration

701 84, 701 86, 701 90, 180197, 123336, 123337, 303139, 303141, G06G 776

Patent

active

057323801

ABSTRACT:
In order to provide an accurate traction control by closing a second throttle valve provided in series to an accelerator-operated ordinary throttle valve, with a simplified actuator, a control system for reducing a vehicle driving torque employs one or more sensors for sensing a second vehicle operating parameter representing a road surface friction coefficient (.mu.) or a driver's command for acceleration, in addition to sensors for sensing a first vehicle operating parameter representing a drive wheel slip. When the road surface friction coefficient is high or when the driver depresses the accelerator pedal hard, the control system restrains the closing operation of the second throttle valve in accordance with the second parameter even though the closure of the second throttle valve is requested by the first parameter.

REFERENCES:
patent: 4951208 (1990-08-01), Etoh
patent: 4969102 (1990-11-01), Tamura et al.
patent: 5022483 (1991-06-01), Tsuyama et al.
patent: 5137105 (1992-08-01), Suzuki et al.
patent: 5183128 (1993-02-01), Ito et al.
patent: 5400865 (1995-03-01), Togai et al.
patent: 5403247 (1995-04-01), Yagi
patent: 5459661 (1995-10-01), Yagi et al.
patent: 5559703 (1996-09-01), Iwata et al.
patent: 5566776 (1996-10-01), Iwata
patent: 5575255 (1996-11-01), Abe et al.

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