Motor and control system
Pure electric vehicles use electric motors instead of fuel engines and are driven by electric motors without the need for automatic gearboxes. Compared with the automatic gearbox, the motor has a simple structure, mature technology and reliable operation.
The traditional internal combustion engine can limit the speed when the torque is efficiently generated to a narrow range, which is why the traditional internal combustion engine car needs a large and complicated transmission mechanism; and the electric motor can efficiently generate torque in a wide range of speeds. , There is no need to shift gears during the running of a pure electric vehicle, which is convenient and easy to operate and has low noise.
Compared with hybrid vehicles, pure electric vehicles use a single electric energy source. The electronic control system greatly reduces the internal mechanical transmission system of the vehicle, the structure is more simplified, and the energy loss and noise caused by the friction of mechanical parts are also reduced, thus saving the internal space of the vehicle. weight.
The motor drive control system is the main execution structure of the new energy vehicle. The drive motor and its control system are one of the core components of the new energy vehicle (battery, motor, electronic control), and its drive characteristics determine the main performance of the vehicle. Indicator, it is an important part of electric vehicles. Fuel cell vehicles FCV, hybrid electric vehicle HEV and pure electric vehicle EV in electric vehicles all use electric motors to drive wheels. Choosing the right electric motor is an important factor in improving the cost performance of various electric vehicles. Therefore, research and development or improvement At the same time, it is extremely important to meet the various performance requirements of the vehicle during the driving process, and the electric motor drive mode that has the characteristics of sturdiness, durability, low cost, and high efficiency is extremely important.