Patent ID: 11890941
Assignee: VALEO EMBRAYAGES
Field: Transport (Mechanical engineering)
Classification: CPC B  F  Y | IPC B

Claim 12:
13. Hybrid engine unit according to claim 12, wherein the control unit is operational to manage one or more of the following operating modes:
a reinforcement mode, in which the transmission gearbox produces one of the gear ratios between the primary shaft and the secondary shaft, via the intermediate shaft, the main engine is supplied with power so as to drive the primary shaft and exert a main driving torque on the intermediate shaft, the coupling device is placed in the intermediate coupling position, and the reversible electric machine generates a reinforcement driving torque on the intermediate shaft, with the same sign as the main driving torque;
a charging mode, in which the transmission gearbox is positioned so as to connect the primary shaft to the intermediate shaft, the main engine is supplied with power so as to drive the primary shaft and exert a main driving torque on the intermediate shaft, the coupling device is placed in the intermediate coupling position, and kinetic energy is converted to electrical energy with the reversible electric machine operating as a generator;
a transient mode of synchronization of the intermediate shaft during a shift in one of the gear ratios of the transmission gearbox, in which the coupling device is placed in the intermediate coupling position, the main engine is uncoupled from the intermediate shaft, then the reversible electric machine is ordered to bring the intermediate shaft to a speed setpoint allowing engagement of the secondary gear wheel before recoupling the main engine to the intermediate shaft;
an indirect electric drive mode, in which the coupling device is placed in the intermediate coupling position and the main engine is uncoupled from the intermediate shaft, while the intermediate shaft is kinematically connected to the secondary shaft, then the reversible electric machine is controlled according to a speed setpoint of the vehicle;
a mode of regenerative braking via the intermediate shaft, in which the coupling device is placed in the intermediate coupling position, the main drive shaft is uncoupled from the intermediate shaft and the reversible electric machine is ordered to operate as a generator;
a hybrid drive braking mode, in which the coupling device is placed in the intermediate coupling position, one of the gear ratios between the primary shaft and the secondary shaft via the intermediate shaft being engaged, the primary shaft being kinematically connected to the main drive shaft, and kinetic energy is converted to electrical energy with the reversible electric machine operating as a generator and kinetic energy is converted to heat with the main engine providing a resistive torque;
a power take-off drive mode, in which the coupling device is placed in the intermediate coupling position and the main engine is uncoupled from the intermediate shaft, the intermediate shaft from the secondary shaft, then the reversible electric machine is ordered to drive a power take-off coupled to the intermediate shaft.