Hybrid vehicle drive force control device and control method

Details Hybrid vehicle drive force control device and control method Hybrid vehicle drive force control device and control method

1999-03-18

2000-07-18

Marmor, Charles A

Interrelated power delivery controls, including engine control

Transmission control

Continuously variable friction transmission

477 3, 477 15, B60K 4112

Patent

active

060900075

ABSTRACT:
In a hybrid vehicle wherein the rotation torque of a motor and engine are input to a continuously variable transmission, a target speed ratio is determined from a target engine rotation speed set based on a target drive torque of said vehicle and a vehicle speed. A target combined torque of the motor and engine is set based on the target drive torque and a real speed ratio of the transmission. A target motor torque is determined based on the target combined torque and the input rotation speed of the continuously variable transmission. A value obtained by subtracting the target motor torque from the target combined torque is set equal to a target engine torque. The drive force of the hybrid vehicle is optimized by controlling the engine, motor and continuously variable transmission by the target engine torque, target motor torque and target speed ratio thus obtained.

REFERENCES:
patent: 5789881 (1998-08-01), Egami et al.
patent: 5846155 (1998-12-01), Taniguchi et al.
patent: 5873426 (1999-02-01), Tabata et al.
patent: 5939848 (1999-08-01), Yano et al.
patent: 5959420 (1999-09-01), Boberg et al.

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