초록 ▼

A hybrid propulsion system for a motor vehicle, in which electric motors corresponding to the wheels of the motor vehicle are supplied by a generator, which generator is driven by an internal combustion engine, in particular via a direct current intermediate circuit. To be able to start the internal

A hybrid propulsion system for a motor vehicle, in which electric motors corresponding to the wheels of the motor vehicle are supplied by a generator, which generator is driven by an internal combustion engine, in particular via a direct current intermediate circuit. To be able to start the internal combustion engine, in the event of the failure of the battery provided for starting the internal combustion engine, by pushing or towing the vehicle or rolling it downhill, the electric motors can be switched over to operate as generators, and the generator can be switched over to operate as a motor, during an emergency starting phase, once the speed of travel of the vehicle exceeds a specified speed threshold. The emergency starting attempt can be initiated by the driver by means of a control mechanism, e.g. a manually actuated control switch or the accelerator pedal. If necessary, the speed threshold can be measured by means of a speed sensor. A voltage monitoring device can essentially guarantee that before the emergency starting attempt takes place, there is sufficient operating voltage available for the control systems which correspond to the electric motors and the generator.

대표청구항 ▼

A method of operating and starting a hybrid road vehicle under emergency conditions, said method comprising the steps of: moving the hybrid road vehicle and moving at least one wheel of the hybrid road vehicle; switching an electrical generator from operation as a generator to operation as a motor,

A method of operating and starting a hybrid road vehicle under emergency conditions, said method comprising the steps of: moving the hybrid road vehicle and moving at least one wheel of the hybrid road vehicle; switching an electrical generator from operation as a generator to operation as a motor, the electrical generator being in driving connection with an internal combustion engine; switching at least one electric motor disposed at the at least one wheel from operation as a motor to operation as a generator; connecting the at least one motor to the electrical generator with connecting circuitry; driving the at least one electric motor as a generator during movement of the at least one wheel of the hybrid road vehicle; accumulating electric energy from the at least one electric motor; supplying electric energy, generated by the at least one electric motor, to the electrical generator; and starting the internal combustion engine with the electrical generator.