Why are AT and CVT transmission efficiencies lower than dual-clutch?
1 Answers
AT and CVT transmissions have lower efficiency than dual-clutch transmissions because: AT transmissions are connected to the engine via a torque converter, which internally uses transmission fluid, making it a soft connection; CVT transmissions transmit power through friction between the steel belt and pulleys, and the steel belt can slip; dual-clutch transmissions are connected to the engine via clutch plates, which is a hard connection, resulting in higher transmission efficiency. Dual-clutch transmissions have gear sets inside, and this type of transmission does not rely on friction to transmit power, leading to lower power loss.