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Take you to understand the high-voltage electrical system of pure electric vehicles
03-06
Pure electric vehicles use power batteries as energy sources, and their electrical systems include high-voltage electrical systems, low-voltage electrical systems and CAN communication information network systems. This article briefly introduces the composition and development trend of high voltage electrical system.
>>>> Composition of high voltage electrical system
In pure electric vehicles, the high-voltage electrical system mainly undertakes functions such as starting, driving, charging and discharging, and air-conditioning power. It mainly includes battery system, powertrain, high-voltage electronic control system, charging system, high-voltage equipment and its wiring harness system.
Pure electric vehicle high voltage electrical system
battery system
Power battery PACK assembly: the "heart" of electric vehicles, which provides energy for various systems of the vehicle. When the power is exhausted, it also needs to be charged. The power battery is a high-voltage DC, its working voltage is generally 100~400V, and its output current can reach 300A. Ternary lithium battery is the current mainstream.
Generally speaking, the electric vehicle power battery PACK consists of the following parts: power battery module, structural system, electrical system, thermal management system, and battery management system (BMS).