Patent ID: 8814750
Filing Date: 2014-08-26
Classification: B60K,B60W,Y02T,Y10T

Abstract:
1. A process for controlling a creep mode of a vehicle with a hybrid electric power train, which has a drive train comprising an internal combustion engine, an electric motor, a clutch element comprising a clutch located between the internal combustion engine and the electric motor and a torque sensor configured to determine a measured torque transmitted by the clutch, and a transmission operatively connected to the electric motor wherein while the internal combustion engine is running, in order to supply a desired creep torque, primarily the clutch element is utilized, and secondarily, depending on a monitoring of predetermined operating parameters of the clutch element and/or from dimensions relevant for the creep mode, the electric motor is utilized, and wherein the clutch element is configured to transmit a clutch torque that varies in response to the measured torque, and wherein the transmitted clutch torque does not exceed a maximal threshold value of the measured torque.