What is the Three Electric Systems of a Pure Electric Vehicle?
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Three Electric Systems refer to: electric drive, battery, and electric control system. Below is a related introduction to the three electric systems of a pure electric vehicle: 1. Battery System: The battery here is not the one that provides power for vehicle lighting, air conditioning, etc., but the high-voltage battery responsible for supplying the power source. The performance of a pure electric vehicle's battery directly determines its range. Current technical bottlenecks that need to be overcome include battery capacity, charging time, and volume issues. Since current batteries are lithium iron phosphate batteries and ternary lithium batteries, which are highly polluting and chemically active substances, battery safety is also a factor worth considering. 2. Motor System: The motor system is the high-voltage motor that provides torque for the car (simply put, it supplies the force to the car). A vehicle can be equipped with one, two, or four motors, currently divided into two types: AC asynchronous motors and permanent magnet synchronous motors. For high efficiency, permanent magnet synchronous motors are superior. In terms of motor technology, aspects such as torque, compressive strength, stability, and durability need to be evaluated. It plays the role of the power system and, like the battery system, is one of the most core components of a pure electric vehicle. 3. Electric Control System: Although the battery and motor are indispensable, the electric control system is more complex, acting as the central nervous system of the new energy vehicle. Its main function is to collect various signals such as the accelerator, brake pedal, and steering wheel, and issue corresponding instructions based on the corresponding information. Additionally, the motor controller needs to control the speed and direction of the drive motor while also managing tasks like energy recovery. It can be said that the electric control system is as intricate as the human neural network, with signals and instructions from all parts requiring the electric control system to receive and transmit them.
