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The Working Principle of the Power Control System of New Energy Vehicles

Jan 06, 2023      View: 389

What is the General Control Center of New Energy Vehicle Power System


The powertrain of a new energy vehicle refers to a series of component assemblies on the vehicle that generate power and transmit it to the road. Broadly speaking, it includes engine, transmission, drive shaft, differential, clutch and so on, but usually, the powertrain only refers to the engine, transmission, and the rest of the parts integrated to the transmission.


new energy vehicle powertrain system

Among them, the total control center of the new energy vehicle power system is the motor controller, the power core of the new energy vehicle mainly from the power battery, motor and electronic control; where the power battery provides the power source for the vehicle, while the motor electric control is used as the drive control system of the vehicle. Both the power center and the cost center, the motor electric control is an important part of the new energy vehicle.


The Working Principle of the Power Control System of New Energy Vehicles


The power used by new energy vehicles does not come from the power generated by burning gasoline, but from the fuel cell and battery hybrid power together to drive the car. This is where new energy vehicles are more energy efficient and environmentally friendly than traditional fuel cars.


The fuel cell electric vehicle energy of new energy vehicles has a control strategy that will vary with the structural form of the power system, but the energy control strategy of new energy has three basic control objectives, which are three kinds of vehicle dynamics, vehicle economy and vehicle range.


During the driving process of new energy vehicles, the fuel cell and the battery together provide hybrid power to drive together. The power system controller needs to decide the distribution of energy between the fuel cell system and the power cell system at all times according to the power demand of the vehicle and the power cell SOC provided by the battery management system.


In other words, it needs to calculate the torque and power required by the new energy vehicle at this time based on the information about the gas pedal, brake pedal and gear position, and then provide the optimal energy distribution according to the relevant demand.


Through this process, the output of the fuel cell and power cell is controlled by the motor controller and converted into the power output of the drive motor, which can drive the vehicle.


The power of the new energy car does not rely on a single power to drive like a fuel car, but, whether it is a fuel cell or a battery, it is still not as strong as a fuel car in winter output power, and, at a certain age, the cost of the battery that needs to be replaced in a new energy car can make people crazy enough to want to buy a new energy car.



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