ANTRIEBSANORDNUNG FUER EIN KRAFTFAHRZEUG

摘要

The drive system for a motor vehicle comprises an internal combustion engine (1) with at least one controlling element (29) affecting its power and/or torque and/or rotation speed, controllable by a motor element (27), an electric generator system (3) driven by the engine (1), at least one electric motor (11) powered by the generator system (3) and driving the motor vehicle and an electronic control (19) which controls at least the one motor element (27) and the electric power supplied by the generator system (3) and/or the electric power taken by the electric motor (11) depending on the position of an accelerator pedal (23). The system includes means for detecting the actual value of the rotation speed of the engine (1) and means for detecting an actual value of the power supplied by the generator system (3). The control (19) comprises rotation speed regulators (33), which maintain the actual rotation speed at a predetermined setting, and power regulators (37) which maintain the actual electric power at a predetermined setting. To the control (19) is allocated a data store (31) in which characteristic data for combinations of data for the power setting and data for the rotation speed setting and/or data for regulating the at least one motor element (27) are stored. Both with the generator arrangement (3) and with the engine (1) on overrun, depending on the current from the generator arrangement, the control (19) detects the torque cycle depending on the crankshaft angle and, depending on the rotation speed cycle, diagnoses operating faults and/or the state of the motor.