What about these conditions for pure electric vehicles? How much do you know?

With the popularization of new energy vehicles in recent years, new energy vehicles are coming rapidly, especially plug-in pure electric vehicles. At present, the basic and plug-in hybrids are almost the same. In many cases, there is a question, that is, plug-in hybrids. Engine, then does a pure electric car have an engine? Does an electric car need an engine? Let us know if there is an engine in a pure electric vehicle, and whether an electric car needs an engine.

Does an electric car need an engine?
Then from the work of electric vehicles, electric vehicles through the battery - current - power regulator - electric motor - power transmission system - drive the car to complete its work, we can draw a conclusion from its work That is, a pure electric vehicle is a motor that directly drives the wheels. That is to say, if the electric power can make the car run, but because the technology can not keep up, the endurance of the pure electric vehicle is poor, but how to realize the electric vehicle without the engine What about power conversion?

This is inseparable from a core of electric vehicles, the power transmission system, which is different from the fuel pump of the transmission. This device is the motor speed control device, which can be described as the core component. The motor speed control device is the shifting and direction of the electric vehicle. The function of the transformation or the like is to control the voltage or current of the electric energy-saving and environmental protection motive, and complete the control of the driving torque and the rotation direction of the motor. Drive the wheels directly.

The motor saves a lot of space while eliminating some transmission components, which reduces the weight of the vehicle, and the transmission efficiency is also much higher! Moreover, the four wheels are independently controlled, and the inter-wheel differential function can be easily realized by electronic control without the need of a mechanical differential.

It can be seen from the above that although there is no engine in the electric car, there is an electric motor, which is similar to a battery car. Pure electric vehicle motor direct drive wheels have been used since more than 100 years ago. At that time, the internal combustion engine generated electricity to drive the hub motor. However, the wheel hub motor was abandoned because of high cost, low energy efficiency, maintenance trouble, etc., and the internal combustion engine + transmission was used to drive the vehicle.