US 11,654,776 B2
Method for controlling a rotary electrical machine in order to compensate for the torque oscillations of a traction chain of a motor vehicle
Joachim Laupa, Créteil (FR)
Assigned to Valeo Equipements Electriques Moteur, Creteil (FR)
Appl. No. 17/256,433
Filed by Valeo Equipements Electriques Moteur, Creteil (FR)
PCT Filed Jun. 28, 2019, PCT No. PCT/FR2019/051607
§ 371(c)(1), (2) Date Dec. 28, 2020,
PCT Pub. No. WO2020/002855, PCT Pub. Date Jan. 2, 2020.
Claims priority of application No. 1855832 (FR), filed on Jun. 28, 2018.
Prior Publication US 2021/0268914 A1, Sep. 2, 2021
Int. Cl. B60L 15/20 (2006.01)
CPC B60L 15/20 (2013.01) [B60L 2240/421 (2013.01); B60L 2240/423 (2013.01); B60L 2260/20 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for controlling a rotary electrical machine of a motor vehicle, the motor vehicle comprising a traction chain comprising a thermal engine which is connected to a gearbox by a clutch, the rotary electrical machine being incorporated in a thermal drive chain or in an independent drive chain of the thermal engine,
wherein when the clutch is open and the rotary electrical machine is operating in motor mode in order to ensure electric travel of the motor vehicle, the method comprises:
generation of a set point torque corresponding to a desire of the driver to accelerate;
determination of a pulsed compensation torque for compensation for torque oscillations generated by the traction chain;
combination of the set point torque and the pulsed compensation torque previously determined in order to obtain a resulting modified set point torque; and
application of the resulting modified set point torque to the rotary electrical machine, and
wherein both of an amplitude and a phase of the pulsed compensation torque depend on both of a reduction ratio corresponding to gears of the gearbox and on a rigidity of the traction chain.