Vehicle motor control system and method
A motor control and vehicle technology, which is applied to electrical components, emergency protection circuit devices, etc., can solve the problems of high cost, the main microcontroller cannot output PWM to control the motor, and the safety state of the electric drive system cannot be controlled. Good safety control effect, good safety effect
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Embodiment 1
[0039] This embodiment relates to a vehicle motor control system, which mainly includes a controller, a latch and a gate drive circuit.
[0040] Wherein, the controller controls the normal operation of the motor through the enabling control of the gate drive circuit; the latch latches the safety state control signal according to the parameters during the normal operation of the motor; the gate drive circuit drives and connects the motor.
[0041]The gate drive circuit has a working state of controlling the normal operation of the motor under the enabling control of the controller, and when a failure of the controller occurs, the control signal enabling the control of the motor through a safe state The motor enters a safe state, and the safe state includes an ASC safe state when the motor runs at a high speed, and an SPO safe state when the motor runs at a low speed.
[0042] Based on the overall description above, figure 1 An exemplary structure of a vehicle motor control sy...
Embodiment 2
[0056] This embodiment relates to a vehicle motor control method, which generally includes the following steps:
[0057] The normal operation control step is to control the normal operation of the motor;
[0058] The latching step is to latch the safe state control signal according to the parameters during the normal operation of the motor;
[0059] The safety control step is to control the motor to enter a safe state with the latched safe state control signal when a control failure occurs in the motor, and the safe state includes the ASC safe state under the high speed operation of the motor, and the low speed of the motor SPO security state in operation.
[0060] Wherein, in the latching step, the latched security state control signal includes an ASC security state control signal.
[0061] In order to achieve better control, the ASC security state control signal includes the L-ASC security state control signal and the H-ASC security state control signal. At the same time,...
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