METHOD FOR INCREASING THE AVAILABILITY OF A HYBRID SEPARTING CLUTCH IN A HYBRID DRIVE TRAIN OF A MOTOR VEHICLE

摘要

The invention relates to a method for increasing the availability of a hybrid separating clutch in a hybrid drive train of a motor vehicle, wherein the hybrid separating clutch is disposed between an internal combustion engine and an electric traction drive. In the method where even in the event of a fault the motor vehicle continues to be driven, the hybrid separating clutch is controlled by a hydrostatic actuator, and when a malfunction of the hydrostatic actuator is detected, for actuation of the hybrid separating clutch which is engaged in the non-actuated state, the last state of the hydrostatic actuator detected by a control mechanism is used for estimation of a minimum clutch torque which can be transmitted.

主权项

1. A method for increasing an availability of a hybrid separating clutch in a hybrid drive train of a motor vehicle, in which the hybrid separating clutch is arranged between an internal combustion engine and an electric traction drive, comprising: controlling the hybrid separating clutch via a hydrostatic actuator, and upon detecting of an error of the hydrostatic actuator for operating the hybrid separating clutch closed in an idle state, using a most recent status of the hydrostatic actuator detected by a control device for estimating a clutch torque that minimally is to be transmitted.