Abstract: A method is provided for disengaging a tooth clutch of an inactive gear in a dual clutch transmission during vehicle acceleration or retardation. The dual clutch transmission includes an engaged active gear through which torque is transmitted between an engine and driven wheels, an engaged inactive gear to be disengaged, and an electric motor drivingly connected to a shaft of the inactive gear. The method includes controlling the electric motor to provide a compensational torque for temporarily decreasing or substantially eliminating torque transferred by the tooth clutch of the inactive gear, and disengaging the engaged inactive gear. The disclosure also concerns a corresponding dual clutch transmission, a computer program, a computer readable medium, and an electronic control unit for controlling the electric motor of a dual clutch transmission.

Abstract: A method is provided for disengaging a tooth clutch of an inactive gear in a dual clutch transmission during vehicle acceleration or retardation. The dual clutch transmission includes an engaged active gear through which torque is transmitted between an engine and driven wheels, an engaged inactive gear to be disengaged, and an electric motor drivingly connected to a shaft of the inactive gear. The method includes controlling the electric motor to provide a compensational torque for temporarily decreasing or substantially eliminating torque transferred by the tooth clutch of the inactive gear, and disengaging the engaged inactive gear. The disclosure also concerns a corresponding dual clutch transmission, a computer program, a computer readable medium, and an electronic control unit for controlling the electric motor of a dual clutch transmission.