What kind of transmission does Tesla Model 3 use?
2 Answers
Tesla Model 3 uses a fixed-ratio electric single-speed transmission, which works by adjusting speed through the electronic control system and different gear ratios. Taking the 2021 Rear-Wheel Drive Upgraded Tesla Model 3 as an example, its body dimensions are: 4694mm in length, 1850mm in width, and 1443mm in height, with a wheelbase of 2875mm and a trunk capacity of 425 liters. The 2021 Rear-Wheel Drive Upgraded Tesla Model 3 features a double-wishbone independent front suspension and a multi-link independent rear suspension. It is equipped with a permanent magnet synchronous motor, delivering a maximum power of 202kW and a maximum torque of 404Nm.
As an electric vehicle like the Tesla Model 3, after driving for several years, I have more understanding of traditional transmissions. Electric vehicles such as the Model 3 do not use traditional multi-speed transmissions because the motor's torque is sufficiently large, allowing it to deliver power directly from zero speed. Therefore, it only has a single-speed reducer, also known as a fixed gear ratio transmission. This simplifies the mechanical structure, eliminating many failure-prone components like clutches or gear sets. The acceleration feels exceptionally smooth, with quick starts in the city and no hesitation during high-speed cruising, unlike the jerky gear shifts in gasoline cars. Maintenance is much simpler, saving the hassle of changing transmission fluid and unnecessary expenses. Additionally, the high transmission efficiency and low power consumption are core advantages of electric vehicles.
