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What is the principle of a manual transmission in a car?

1 Answers

GabrielFitz

07/29/25 2:39pm

Manual transmission in cars operates by utilizing different gear combinations to achieve speed and torque variation. A manual transmission primarily consists of gears and shafts. In contrast, an automatic transmission functions through hydraulic power transmission and gear combinations to achieve speed and torque variation. An automatic transmission (AT) is composed of a torque converter, planetary gears, and a hydraulic control system. For example, a combined transmission refers to a hydromechanical transmission that consists of a torque converter and a geared stepped transmission, where the transmission ratio can vary continuously within several discontinuous ranges between the maximum and minimum values. The torque converter is composed of components such as the pump impeller, turbine, and guide wheel, directly receiving engine power to transmit torque and perform clutch functions.

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