METHOD FOR CONTROLLING THE ELECTRIC MOTOR OF A HYBRID OR ELECTRIC VEHICLE
First Claim
1. Control method for an electric motor that drives a transmission shaft of a motor vehicle, this motor applying to the transmission shaft a torque with a value corresponding to a torque setpoint applied to this electric motor, characterized in that the torque setpoint is corrected by subtracting a correction signal obtained by processing a signal representing the instantaneous rotational speed of the transmission shaft using bandpass filtration within a frequency band that includes a frequency of a normal mode of oscillation of the vehicle drivetrain.
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Abstract
The invention relates to a method for controlling the electric motor of a hybrid or electric vehicle. The method is intended for controlling the electric motor driving the transmission shaft of a vehicle, wherein the motor applies to the transmission shaft a torque having a value corresponding to a torque set-point applied to said electric motor. The torque set-point is corrected by subtracting a correction signal obtained by the application of a band-pass filtration-type processing to a signal representative of the transmission-shaft rotational instant speed, within a frequency band including the frequency of a particular oscillation mode of the vehicle traction chain. The invention can be used for reducing jolts resulting from a discontinuity in the torque applied to the transmission shaft.
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Citations
20 Claims
- 1. Control method for an electric motor that drives a transmission shaft of a motor vehicle, this motor applying to the transmission shaft a torque with a value corresponding to a torque setpoint applied to this electric motor, characterized in that the torque setpoint is corrected by subtracting a correction signal obtained by processing a signal representing the instantaneous rotational speed of the transmission shaft using bandpass filtration within a frequency band that includes a frequency of a normal mode of oscillation of the vehicle drivetrain.
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