Motor torque zero-crossing anti-shake control method for new energy vehicles
A new energy vehicle, motor torque technology, applied in the direction of control drive, control device, vehicle components, etc., can solve the torque response speed and response accuracy deterioration, new energy vehicles have a large impact on power, reduce speed fluctuations and torque shocks, etc. problems, to achieve the effect of smooth torque changes, improve driving experience, reduce speed fluctuations and power shocks
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[0049]Step 1: The torque request command from the ride controller unit VCU or the torque request command from other control terminals is sent to the motor controller PEU, combined with the existing torque zero-crossing identification algorithm to determine whether it is a torque zero-crossing condition, and if so, execute Step 2, otherwise, the output torque is equal to the requested torque, and continue to be kept in step 1, and the zero-crossing condition is monitored in real time;
[0050] Step 2: Confirm that it belongs to the torque zero-crossing condition. Use a torque slope of 100Nm / s to limit the response speed of the output torque following the torque command within 0.1 seconds of the set time. The limited output torque cannot exceed the requested torque, and then perform step 3;
[0051] Step 3: Determine whether the requested torque command has a torque zero-crossing condition again within the time limit of the torque output slope, if yes, return to step 1; otherwise...
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