Why do Half of the Cost of New Energy Vehicles go to the Battery?
2017-07-17
Compared with the traditional fuel vehicle power system, new energy vehicles, a motor, batteries and other core components, so consumers in the purchase of new energy vehicles, battery technology is also a point of concern, the strength of battery technology not only directly influences the efficiency of energy saving, mileage, but also related to security issues. "See, the small Samsung mobile phone battery explosion can hurt people, not to mention the car battery power system of hundreds of thousands of times the size of the battery?
Technology is a very complex system engineering, the current mainstream new energy vehicle battery pack technology differences, mainly reflected in the battery management system, three aspects of safety management and high pressure thermal management. In order to understand, from the current mainstream pure electric series hybrid power split (planetary gear), hybrid category analysis, one of the most representative models of Tesla, Po Ma I3 and Buick velite5.
battery management system (BMS) is the core of the battery pack, take on all the parameters of the battery and battery thermal equilibrium read, aspects of the work. In other words, the battery management system is directly related to the reliability of the whole battery pack reliability and safety. The technical difference of BMS system mainly in 3 aspects the bone (hardware circuit board), heart (chip) and neural network (system architecture).
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