Control method for a drive train with a transmission gear connected via freewheel

• Main Author: SCHAEFER STEPHAN
• Format: Patent
• Language: Chinese; English
• Published: 15.10.2019
• Subjects: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLES IN GENERAL

The invention relates to a control method for a drive train with a transmission gear connected via a freewheel. The invention relates to a method for controlling a drive train of a motor vehicle. Themotor vehicle is provided with a motor, a transmission driven by the motor via a motor shaft, and a transmission gear connected by a freewheel gear used for transmitting traction torque, wherein the speed of the motor shaft can be changed by the driver via change of the position of an accelerator pedal. In a simple and cost-effective manner, the ride comfort can be increased and / or the componentwear can be reduced if the at least one freewheeled transmission gear is active, engine-side freewheel input speed and freewheel output freewheel output speed of the freewheel are determined, the determined coasting output speed is greater than the determined coasting input speed and the position of the accelerator pedal is maintained unchanged or reduced, the engine is operated at a desired motor shaft speed, which is ju