DIFFERENTIAL RESTRICTION CONTROL DEVICE OF HYBRID VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide a differential restriction control device of a hybrid vehicle that controls vehicle vibration and drive force change when performing differential restriction between front and rear shafts.SOLUTION: Differential restriction is performed by: operating a real revolution speed difference and a target revolution speed difference between front and rear shafts; operating a sub-drive shaft correction torque to make the real revolution speed difference follow to the target revolution speed difference; operating the maximum differential restriction torque that restricts the maximum value of the sub-drive shaft correction torque; operating a limit output that restricts the sub-drive shaft correction torque based on the maximum differential restriction torque; correcting the sub-drive shaft drive torque distributed from the total drive torque by a limiter output; and controlling an electric motor to become the corrected sub-drive shaft drive torque.