초록 ▼

A hybrid electric powertrain system is provided including a transmission for driving a pair of wheels of a vehicle and a heat engine and an electric motor/generator coupled to the transmission. A friction brake system is provided for applying a braking torque to said vehicle. A controller unit gener

A hybrid electric powertrain system is provided including a transmission for driving a pair of wheels of a vehicle and a heat engine and an electric motor/generator coupled to the transmission. A friction brake system is provided for applying a braking torque to said vehicle. A controller unit generates control signals to the electric motor/generator and the friction brake system for controllably braking the vehicle in response to a drivers brake command. The controller unit determines and amount of regenerative torque available and compares this value to a determined amount of brake torque requested for determining the control signals to the electric motor/generator and the friction brake system.

대표청구항 ▼

[ What is claimed is:] [1.] A hybrid electric powertrain system for a vehicle, comprising:a transmission for driving a pair of wheels of said vehicle;a heat engine coupled to said transmission;an electric motor/generator coupled to said transmission;a friction brake system for applying brake torque

[ What is claimed is:] [1.] A hybrid electric powertrain system for a vehicle, comprising:a transmission for driving a pair of wheels of said vehicle;a heat engine coupled to said transmission;an electric motor/generator coupled to said transmission;a friction brake system for applying brake torque to said vehicle; anda controller unit for generating control signals to said electric motor/generator and said friction brake system for controllably braking said vehicle in response to a driver's brake command, wherein said controller unit determines an amount of regenerative torque available, by multiplying the torque available at the transmission input shaft by a drivetrain gear ratio, and compares this value to a determined amount of brake torque requested for determining said control signals to said electric motor/generator and said friction brake system.