What are the three types of transmissions categorized by the variation method of transmission ratio?
1 Answers
Transmissions can be categorized by the variation method of transmission ratio into: 1. Hydraulic torque converter automatic transmission: A gear transmission system is installed behind the hydraulic torque converter. 2. Mechanical automatic transmission: It consists of a clutch and achieves continuously variable transmission by changing the effective radius of the V-belt pulley based on vehicle speed and throttle opening. 3. "Electric wheel" continuously variable transmission: It replaces traditional mechanisms in mechanical transmissions with electric current supplied to the motor to drive the wheel integrated with the motor. By transmission type, they can be divided into two categories: stepped transmissions and continuously variable transmissions. A stepped transmission has a limited number of fixed transmission ratios (typically 3 to 5 forward gears and one reverse gear). A continuously variable transmission allows the transmission ratio to change continuously within a certain range, and its application in automobiles has been gradually increasing.