How is the quality of the Geely Emgrand CVT transmission?
1 Answers
Geely's new Emgrand CVT transmission comes from Punch Powertrain in Belgium. This transmission is highly durable. The specific details are as follows: 1. Structure: Compared to the complex traditional planetary gear set AT transmission, the structure of the CVT is relatively simpler. Taking the most common steel belt-type CVT as an example, its core components for achieving variable transmission ratios are two cone wheels and a steel belt. In the CVT, the low gear is achieved by a small-diameter driving wheel driving a large-diameter driven wheel. As the gear increases, the driving wheel's diameter becomes larger, and the driven wheel's diameter becomes smaller. 2. Continuously Variable Transmission (CVT): During actual operation, based on changes in torque and output power, the cone wheel set changes relatively under the control of the computer and its hydraulic cylinder according to a predetermined pattern. When the vehicle requires higher torque (such as during startup or acceleration), a larger reduction ratio is needed. The driving cone wheel set separates to form a smaller working circle, while the driven wheel is squeezed inward to form a larger working circle. Conversely, when the vehicle requires lower torque (such as during high-speed cruising), the opposite occurs. The chain belt serves as the power transmission medium. This motion principle is entirely the same as that of other transmissions, just achieved through different means. The ability to create any gear ratio based on power demand, without the impact of gear shifting during ratio changes, is the principle and significance of continuously variable transmission.
