TORQUE STRATEGY FOR MANAGEMENT OF REGENERATIVE BRAKING OF A WHEELED VEHICLE WHOSE POWERTRAIN INCLUDES A ROTARY ELECTRIC MACHINE

摘要

A torque control strategy control for management ofregenerative braking in a motor vehicle. A first processor(12) processes throttle request data (20) and torquemodification data (40) from a second processor (14) todevelop motor torque request data (28) for controllingrotary electric machine torque. The second processorprocesses brake request data (26), the throttle requestdata, and operating data from the at least one operatingdata source to develop friction brake torque data (30) forcontrolling friction brake torque applied to the vehicle andthe torque modification data for the first processor. Thetwo processors interact such that as long as the operatingdata from the at least one operating data source does notrequire that regenerative braking torque be limited, thetorque modification data supplied to the first processorfrom the second processor equates to the brake torquerequest data, and the friction brake torque data does notcause the friction brakes to be applied, and when theoperating data from the at least one operating data sourcecalls for some limiting of the regenerative braking torque,the amount of limiting is subtracted from the torquemodification data and the friction brake torque data equatesto that amount of limiting for causing the friction brakesto be applied in that amount.