Knowledge about EV

The so-called hybrid power relies on the cooperation of the traditional gasoline engine and the output power of the electric motor, and uses the charging of the battery when the engine is working to continuously switch and convert the power generated by the electric motor and the engine to achieve dual kinetic energy. Such cooperation is mainly driven by the electric motor and supplemented by the engine, which achieves the expected environmental protection benefits of reducing fuel consumption and exhaust emissions.

No, the characteristics of brushless motors are opposite to those of stepping motors. The higher the speed of stepping motors, the smaller the torque, while the higher the speed of brushless motors, the greater the torque. Just like the electric cars on the market, the higher the speed The more powerful it is, the electric vehicle generally needs to increase the speed when climbing hills.

Some electric vehicles are equipped with a gearbox in order to increase the driving force or the maximum speed, but the basic gears of the gearbox are relatively small, generally a 1-speed or 2-speed gearbox. Hybrid new energy vehicles add power batteries and motors to the original traditional cars. Usually, when the vehicle starts, it starts with a pure motor. After the vehicle speed reaches 20 kilometers per hour, the motor stops working and the engine starts to work, thus avoiding the engine In the most fuel-intensive working range when the vehicle starts, so as to achieve the purpose of saving fuel

Electromagnetic Compatibility (EMC, Electromagnetic Compatibility) refers to the ability of a device or system to operate in compliance with the requirements in its electromagnetic environment without causing unbearable electromagnetic disturbance to any equipment in its environment.

If the high voltage is cut off unexpectedly, the low voltage part can also supply power to the steering pump, and the low voltage system can be used to complete the steering of the car. In an emergency, if there is only high voltage, once the power is cut off, the steering wheel will not move, which is not conducive to emergency avoidance

Fast charging and slow charging are relative concepts, and there is no clear definition yet. 0.1-0.2c is called slow charging, greater than 0.2c is fast charging, greater than 0.8c is ultra-fast charging, and less than or equal to 0.05c is trickle charging. Battery replacement refers to removing the battery and replacing it with a new battery to reduce waiting time.

Bi-directional DCDC means that DCDC has both high-voltage to low-voltage and low-voltage to high-voltage functions (generally, low-voltage to high-voltage can only last for a short time, unless there is a power supply to continuously charge the low-voltage battery)

1. CAN control: control through CAN protocol 2. PWM control: control within a certain range 3. Gear control: There are three fixed gears.

The motor has driving and regenerative functions, and the regenerative function is energy recovery. When the car is braking, the motor is equivalent to the function of a generator to charge the car battery

"1kgf.cm=(0.098)N.m , kgf=kilogram force, is the main unit of force in the engineering unit system, meaning 1 kilogram of force.
Kilogram force is the gravitational force of a kilogram of matter on the earth, which is exactly equal to 9.8 Newtons, and 9.8 Newtons is used for general calculations.
1 Newton (N)=0.225 pound force (lbf)=0.102 kilogram force (kgf).
1 kilogram force (kgf)=9.8 Newton (N)"

About the services we provide

We not only provide pre-sales scheme design services, but also provide after-sales technical service support.

"Truck, bus, boat: motor, electric control, battery, OBC, water pump, air conditioning system, steering pump, air compressor
Car: All of the above can be used except the battery.
Charging pile
Bus chassis and overall parts of the bus. "