Method and device for damping control of oscillating modes of a continuously variable transmission provided with an electric variator
AssigneeRENAULT s.a.s.
InventorsPhilippe Pognant-Gros, Laurent Royer
Life of this patent
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Abstract
A method for damping control of oscillating modes of a continuously variable transmission which is provided with an electric variator by using a heat engine and at least two electric machines. In the method a torque controller of the electric machines is embodied in a form of a sum of a main instruction enabling to attain set torque on a wheel, heat engine torque, and an additional instruction for damping oscillating modes generated by stiffness of a kinematic chain between the heat engine and the wheels.
Claims18
1-17. (canceled)
A method of damping oscillating modes of an infinitely variable transmission with electric variator, including a heat engine and at least two electric machines, wherein a torque instruction of the electric machines is a sum of a main instruction making it possible to attain setpoints for wheel torque and torque of the heat engine, and of an instruction supplement intended to damp the oscillating modes brought about by stiffnesses of a kinematic chain between the heat engine and the wheels.
A device for supervising a transmission ensuring regulation of torque at wheels and of thermal status of an infinitely variable transmission with electric variator, comprising:
- a heat engine;
- at least two electric machines;
- and
- a unit for damping torsional modes, which calculates an instruction supplement intended to damp oscillating modes brought about by stiffnesses of a kinematic chain between the heat engine and the wheels.
Dependencies are inferred from the claim text.