The Controller is the core control device used to control the start, operation, advance and retreat, speed, stop and other electronic devices of the electric vehicle motor. It is like the brain of the electric vehicle and is an important part of the electric vehicle. Electric vehicles mainly include electric bicycles, electric two-wheeled motorcycles, electric tricycles, electric three-wheeled motorcycles, electric four-wheeled vehicles, battery cars, etc. Electric vehicle Controllers also have different performances and characteristics because of different models.
What are the main systems of the Controller?
What types of Controllers are there?
How does the Controller work?
What are the main systems of the Controller?
1. Ultra-quiet design technology: The unique current control algorithm can be applied to any brushless electric vehicle motor, and has a considerable control effect, which improves the general adaptability of the electric vehicle Controller and makes the electric vehicle motor and Controller. Matching is no longer required.
2. Constant current control technology: The locked rotor current of the electric vehicle Controller is exactly the same as the dynamic running current, which ensures the life of the battery and improves the starting torque of the electric vehicle motor.
3. Automatically identify the motor mode system: Automatically identify the commutation angle, Hall phase and motor output phase of the electric vehicle motor. As long as the Controller's power line, handle line and brake line are not connected incorrectly, the motor input can be automatically identified. and output mode, which can save the trouble of wiring the brushless electric vehicle motor, and greatly reduce the use requirements of the electric vehicle Controller.
What types of Controllers are there?
There are two types of electric vehicle Controllers in terms of structure, which we call separate type and integral type.
1. Separation: The so-called separation refers to the separation of the main body of the Controller and the display part. The latter is installed on the handlebar, and the main body of the Controller is hidden in the body box or the electric box, and is not exposed outside. In this way, the connection distance between the Controller, the power supply and the motor is shortened, and the appearance of the vehicle body is simple.
2. All-in-one type: The control part and the display part are integrated, and they are packed in a delicate special plastic box. The box is installed in the middle of the handlebar, and the panel of the box has a number of small holes with a diameter of 4-5mm, and a transparent waterproof membrane is applied outside. There are light-emitting diodes at the corresponding positions in the holes to indicate vehicle speed, power supply and remaining battery power.
How does the Controller work?
Controller mainly includes the following parts: control chip and its drive system, AD sampling system, power module and its drive system, hardware protection system, position detection system, bus support capacitor, etc.
The power main circuit adopts a three-phase inverter full bridge, and the main power switching device is IG-BT. In the state of high current and high frequency switching, the stray inductance from the electrolytic capacitor to the power switch module has a great influence on the energy consumption of the power circuit and the peak voltage on the module. Therefore, the laminated busbar substrate is used to minimize the stray inductance of the circuit. It may be small to adapt to the characteristics of low voltage and high current operation of the control system.
Guangzhou HERUI is a trading company, specialized in construction machinery, dedicated to spare parts of excavators,breakers, forklifts, bulldozers, heavy trucks, mainly involved in sealing, hydraulic, engine and transmission system.