Stepless automatic transmission and vehicle

Abstract

The invention provides a stepless automatic transmission and a vehicle, and relates to the technical field of vehicle power transmission systems. The stepless automatic transmission comprises a belt wheel transmission mechanism connected with an output shaft of an engine, and further comprises a planet gear mechanism, a differential, a transmission gear set and a clutch set, wherein the differential is connected with the planet gear mechanism, and comprises a transmission output shaft; the transmission gear set is in transmission connection with the output shaft of the engine and the planet gear mechanism; and the clutch set is connected with the planet gear mechanism and the transmission gear set, and comprises a first clutch and a second clutch. The stepless automatic transmission is provided with the planet gear mechanism connected with the differential and the clutch set connected with the planet gear mechanism and the transmission gear set; through change of working states of theclutches in the clutch set, the speed ratio range of the stepless automatic transmission is widened; the structure is simple; and the dynamic property and the economy of the vehicle are improved.

Description

technical field [0001] The invention relates to the technical field of automobile power transmission systems, in particular to a continuously variable automatic transmission and an automobile. Background technique [0002] The continuously variable automatic transmission is an automotive component composed of a hydraulic torque converter and an automatic transmission. It can automatically shift gears according to the opening of the throttle valve and the change of the vehicle speed. It can be automatically controlled by a computer without the number of transmission gears. [0003] With the development of technology and people's continuous requirements for various aspects of automobile performance, the existing continuously variable transmission uses a single planetary row and a clutch, which can only achieve the effect of switching between reverse gear and forward gear and neutral gear. Its complex structure and small speed ratio range cannot meet people's requirements for v...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a continuously variable automatic transmission and an automobile, which solves the problems of the complex structure and small speed ratio range of the conventional continuously variable automatic transmission, increases the speed ratio range of the continuously variable automatic transmission, and has a simple structure. Improve the power and economy of the car

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