Most modified electric vehicles with speeds greater than 120 kilometers per hour use AC electric motors, which are powered by on-board power supplies and use AC motors to drive the wheels. AC motors are usually AC permanent magnet synchronous motors or AC asynchronous induction motors. We add a frequency converter to the AC motor to make the motor more energy-saving and efficient, with stable performance, strong overload resistance, no motor burnout, and strong climbing power. In this way, the vehicle starts smoothly, accelerates quickly, and has low noise when driving, making passengers feel more comfortable. Our variable frequency controller uses a DSP control chip to accurately utilize frequency to control electric energy and increase the cruising range by about 15%. "High-efficiency variable frequency electric drive system integration technology", "DSP electric drive control system integration", and "electric vehicle power battery management system" can make the energy conversion rate of modified electric vehicles as high as 92%, effectively allowing the vehicle to go further and run faster. Our AC motor and controller system is mainly used for high-speed performance modification kits to meet the driving speed more than 120 kilometers per hour.
Our AC variable frequency motor adopts a special electromagnetic structure optimization design that is different from ordinary AC motors, so that the motor torque, power and efficiency can be optimized within a wide speed range. Our low-voltage AC variable frequency motor operates at constant torque below the base speed to meet the requirements of electric vehicles for quick starting, acceleration, climbing and frequent starting. It operates at constant power above the base speed, allowing the motor to obtain greater torque when running at high speed, allowing the electric vehicle to gain good high speed performance. It can meet the operating requirements of various working conditions of electric vehicles. At the same time, it acts as a generator to provide energy feedback to charge the battery when going downhill, high-speed taxiing and braking, thereby increasing the vehicle's cruising range. Our high-speed electric vehicle modification kit includes vehicle controller, drive motor system, power battery system, wiring harness, etc.
