Patent ID: 8335602
Filing Date: 2012-12-18
Classification: B60K,B60L,B60W,Y02T

Abstract:
1. A system for controlling a power propulsion unit of hybrid type for a four-wheel drive motor vehicle including at least one electric motor member and at least one combustion engine member, to drive independent front and rear driven axles of the vehicle, comprising: determining means for determining a total torque setpoint based on demands of a driver, including a selection made between four-wheel drive operation and operation that minimizes fuel consumption; vehicle course and stability control means for imposing a rear torque setpoint as a function of the demands of the driver and of driving conditions; splitting means for splitting the total torque setpoint between the at least one electric motor member and the at least one combustion engine member, the splitting means imposing a dynamically variable non-zero rear torque setpoint when the four-wheel drive operation is demanded and imposing a rear torque setpoint that optimizes fuel consumption when the operation that minimizes fuel consumption is demanded; and optimizing means for optimizing an operating point of the power propulsion unit according to the demands by the driver and driving conditions.