Patent ID: 8216113
Filing Date: 2012-07-10
Classification: F02B,F02N,F16D,Y10T

Abstract:
1. A device comprising: an engine having an output member; a first drive assembly having an input member, a first drive member, a second drive member, a first clutch, a second clutch and a third clutch, the input member being coupled to an output of the engine, the first clutch being configured to couple the input member to the first drive member when the output member of the engine is driving the input member, the second and third clutches coupling the second drive member to the input member, the second clutch being operable in an engaged mode to transmit rotary power from the input member to the second drive member and a disengaged mode in which the second clutch does not transmit rotary power between the input member and the second drive member, the third clutch being operable in an engaged mode to transmit rotary power in a first rotational direction from the second drive member to the input member and a disengaged condition in which rotary power is not transmitted through the third clutch between the input member and the second drive member; a motor/generator having a shaft, the motor/generator being operable in a first mode, in which rotary power is input to the motor/generator and the motor/generator outputs electric power, a second mode in which electric power is input to the motor/generator to cause the shaft of the motor/generator to rotate in the first rotational direction, and a third mode in which electric power is input to the motor/generator to cause the shaft of the motor/generator to rotate in a second rotational direction opposite the first rotational direction; an accessory drive system having an accessory endless power transmitting member and an accessory assembly with an accessory, a third drive member, a fourth drive member and a fourth clutch, the accessory endless power transmitting member being coupled to the first drive member and the third drive member to transmit rotary power therebetween, the third drive member being coupled for rotation with an input shaft of the accessory, the fourth clutch being configured to inhibit transmission of rotary power between the fourth drive member and the input shaft of the accessory when the fourth drive member is driven in the first rotational direction, the fourth clutch being configured permit transmission of rotary power between the fourth drive member and the input shaft of the accessory when the fourth drive member is driven in the second rotational direction; and a coupling means for coupling the shaft of the motor/generator to the second drive member and for coupling the shaft of the motor/generator to the fourth drive member.