Why is motor controller a core component of new energy vehicles? Motor controller is a core accessory of new energy vehicles, mainly based on its key role in power output, energy management, safety and security, intelligent control and communication collaboration, as analysed below:
The motor controller converts the DC power from the power battery into the AC power needed to drive the motor through the inverter, and precisely regulates the current and voltage, thus controlling the motor’s speed and torque. When the driver steps on the accelerator pedal, the motor controller can quickly adjust the power output of the motor to make the vehicle accelerate smoothly. The motor controller is a decisive factor in the vehicle’s power performance, directly affecting the driving experience and the vehicle’s power performance.
The motor controller is equipped with an energy recovery function, which converts the mechanical energy of the motor into electrical energy and feeds it back to the power battery for storage when the vehicle is braking or decelerating. The motor controller can also monitor the remaining battery power, temperature and other status information in real time, so as to reasonably allocate and dispatch energy according to the vehicle’s driving needs and extend the battery’s life.
The motor controller has a variety of built-in safety protection functions, when the motor or battery is abnormal, it can cut off the power supply in time to prevent equipment damage and safety accidents. For example, when a motor has excessive current due to overloading, the motor controller will quickly detect this abnormality and cut off the circuit to prevent the motor from burning out due to overheating. Fault codes are recorded and this information is sent to the overall vehicle controller for timely maintenance and handling.
Why is the motor controller a core accessory for new energy vehicles? With the improvement of the intelligence level of new energy vehicles, the motor controller is evolving from a mere power conversion device to an intelligent decision-making unit. The torque output is dynamically adjusted according to the feedback from the motor shaft angular position sensor, which not only ensures the power response but also avoids energy waste.
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