Patent ID: 9120481
Filing Date: 2015-09-01
Classification: B60K,B60W,F02N,F16H,Y02T,Y10S,Y10T

Abstract:
1. In a hybrid drivetrain which has a drive engine and a dual-clutch gearbox which, to establish a first and a second power transmission path, has a first and a second friction clutch and a first and a second component gearbox, wherein an electric machine is connected to the second power transmission path downstream of the second friction clutch in a power flow direction, wherein purely electric driving operation can be realized by means of the second component gearbox assigned to the second friction clutch, wherein the drivetrain also has an electric starter motor, a method for controlling the drivetrain comprises a step of providing a fill-in torque in an event of a gear change in the second component gearbox during purely electric driving operation, the fill-in torque being a traction force assistance torque, the fill-in torque being provided from inertial energy of the drive engine which has been previously cranked in a non-fired condition with the assistance of the starter motor.