Vehicle motive force control system

Details Vehicle motive force control system Vehicle motive force control system

1998-12-29

2000-02-22

Marmor, Charles A

Interrelated power delivery controls, including engine control

Transmission control

Continuously variable friction transmission

477111, 701 58, B60K 4112, B60K 4104

Patent

active

060274255

ABSTRACT:
A system for controlling motive force of a vehicle having an engine and a continuously variable automatic transmission connected to the engine to transmit engine torque to a drive shaft of the vehicle. In the system, a desired motive force is calculated or determined from the detected accelerator (pedal) position and vehicle speed, and based on the determined motive force a desired engine speed, more specifically a drive shaft speed of the transmission, is calculated or determined. Then inertia torque acting on the vehicle is calculated or determined based on at least the determined speed and detected speed, and a desired throttle opening is corrected by the determined inertia torque when the vehicle accelerates or decelerates. With the arrangement, the vehicle response delay due to the inertia torque is adjusted and hence, drivability and fuel economy performance are enhanced.

REFERENCES:
patent: 4507986 (1985-04-01), Okamura et al.
patent: 4699025 (1987-10-01), Omitsu
patent: 4720793 (1988-01-01), Watanabe et al.
patent: 4735114 (1988-04-01), Satoh et al.
patent: 5508923 (1996-04-01), Ibamoto et al.
patent: 5695427 (1997-12-01), Sato et al.

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