Method for controlling a means for recovering energy generated by the braking of a motor vehicle

摘要

A method for controlling a motor vehicle including driven wheels, a mechanism recovering energy generated by braking, and a torque transmission chain transmitting torque from the driven wheels to the energy recovery mechanism, the method including:
a) acquiring a braking instruction and dynamic characteristics of the motor vehicle,b) controlling the energy recovery according to a control set point calculated as a function of the braking instructions and the dynamic characteristics acquired in a), and c) controlling the brakes according to a control set point calculated as a function of the braking instruction and the dynamic characteristics acquired in a). In b), the control set point for energy recovery is calculated by a preventive filter that filters the braking instruction to attenuate amplitude thereof around the resonant frequency of the torque transmission chain.

主权项

1. A method for controlling a motor vehicle including driven wheels, brakes, a means for recovering energy generated by braking, and a torque transmission mechanism transmitting torque from the driven wheels to the energy recovery means, the method comprising:
a) acquiring a braking instruction and at least one dynamic characteristic of the motor vehicle; b) controlling the energy recovery mechanism according to a recovery control setpoint calculated as a first function of the braking instruction and of the at least one dynamic characteristic acquired in a); and c) controlling the brakes according to a braking control setpoint calculated as a second function of the braking instruction and of the at least one dynamic characteristic acquired in a), wherein in a), a value of an output parameter of the energy recovery mechanism is acquired, and wherein in b), the recovery control setpoint of the energy recovery mechanism is calculated by a preventive filter which filters the braking instruction to attenuate an amplitude of the braking instruction around a resonant frequency of the torque transmission mechanism, and the recovery control setpoint of the energy recovery mechanism is further calculated by a corrective filter which filters the output parameter to damp out oscillations of the torque transmission mechanism.