May 27, 2024
Asheville, North Carolina
Classic car to Ev conversion Engine

The Permanent Magnet Synchronous Motor (PMSM) is an ideal and cheap choice for converting your classic vehicle to an electric vehicle.

Electric vehicle conversion, specifically for passenger vehicles weighing around 1.2 tons, requires careful consideration of various factors, with the choice of motor being of paramount importance. The heart of an electric vehicle is its motor, in this case, a Permanent Magnet Synchronous Motor (PMSM). The popularity of PMSMs in electric vehicles has been increasing due to their superior efficiency, power density, and overall performance when compared to other types of motors. The PMSM highlighted here has been specifically engineered to offer high performance, efficiency, a lightweight form factor, and a compact design – all essential characteristics for EV conversions that directly impact the vehicle’s performance, range, and driving experience.

Analyzing the motor’s specifications further highlights its suitability for this application. The motor boasts impressive power and speed capabilities, integral to a vehicle’s performance, affecting acceleration and cruising ability. The high torque figures promise swift and responsive acceleration, crucial for city driving, while the high operating voltage can enhance system efficiency, reducing resistive losses, improving energy efficiency, and thus extending the vehicle’s range. Importantly, the motor’s lightweight nature contributes to better energy efficiency and potentially improved handling characteristics, while less strain is exerted on other vehicle components, such as suspension and braking systems.

The motor’s exceptional efficiency ensures that a maximum amount of power from the battery is converted into usable mechanical energy, reducing energy waste, and contributing to a longer driving range. Further, the motor’s water cooling mechanism efficiently maintains optimal operating temperatures under various conditions, thereby extending its lifespan and ensuring consistent performance. Considering these factors, it’s evident that the PMSM presented here is an excellent choice for converting a passenger vehicle of approximately 1.2 tons into an efficient, high-performing electric vehicle.

10KW 41KW 60KW 80KW 120KW 336VDC 540VDC 650V water-cooled permanent magnet synchronous electric car motor for EV car EV truck

  1. Power: The rated power of 40KW and peak power of 80KW is a good balance for the specified weight of a passenger vehicle. The power generated by a motor is the product of torque and speed. Having a higher peak power means that either the motor can generate high torque at high speed, or it can maintain its torque at high speeds. These factors ensure the vehicle can navigate various driving conditions comfortably, from city streets to high-speed highways.
  2. High Speed: The peak speed of 11,000 RPM and a maximum speed of 10,000 RPM indicates that the motor can run at high rotational speeds without undergoing stress or overheating. High RPM in motors also corresponds to a higher power output given sufficient torque. It also indicates that the motor is designed to handle high electrical frequencies, which translates to its ability to quickly respond to changes in throttle inputs, providing an agile driving experience.
  3. Torque: The rated torque of 100Nm and peak torque of 235Nm ensure the vehicle has sufficient pulling power even from a standstill, as torque is the force that gets the vehicle moving from a stop. High torque at low speeds is a characteristic of electric motors, and it ensures quick acceleration. Also, peak torque can help during more demanding driving situations, such as uphill driving or towing.
  4. Voltage: The motor operates at a rated voltage of 360VDC. Higher operating voltages mean lower current for the same power, reducing resistive losses in the motor and the wiring. It also allows for a higher RPM, as voltage in a motor is directly related to speed. This aspect can contribute to improving the overall range and efficiency of the vehicle.
  5. Lightweight: The motor’s weight of 35kg can contribute positively to the vehicle’s total weight, directly affecting the energy required to move the vehicle. Lower weight also reduces the load on the suspension and braking systems, thus preserving the original handling characteristics of the vehicle.
  6. Efficiency: The motor’s efficiency of 95% means that only 5% of electrical energy is lost as heat, noise, or vibration. The rest is converted into mechanical energy to drive the wheels. High efficiency is crucial in EVs as it directly impacts the range of the vehicle. It also means less waste heat to manage, reducing the burden on the cooling system.
  7. Cooling: Water cooling is an efficient method of heat management. By keeping the motor within its optimal operating temperature range, it can maintain its performance, efficiency, and reliability. A well-managed motor temperature can also extend the lifespan of the motor and other electronic components due to reduced thermal stress.
  8. Continuous Current: The ability to handle a continuous current of 240A means that the motor can sustain high power outputs over extended periods without risking overheating or thermal damage. This rating also indicates the robustness of the motor’s windings and their ability to handle the heat generated by this current.
  9. Permanent Magnet Synchronous Motor: PMSMs have several technical advantages over other types of motors. The permanent magnets provide constant excitation without needing extra current, enhancing efficiency. PMSMs also offer better power density (power-to-weight ratio), which is crucial for making the vehicle lighter without compromising on performance. 
  10. Compact Size: The motor’s compact dimensions (284x425mm) make it easier to fit into different vehicle configurations. This can simplify the conversion process and leave more room for other components, such as batteries. Also, being compact means that the motor can be placed in various locations (like front, rear, or even in-wheel), providing flexibility in designing the vehicle’s layout.

10KW 41KW 60KW 80KW 120KW 336VDC 540VDC 650V water-cooled permanent magnet synchronous electric car motor for EV car EV truck

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