Stepless automatic transmission and vehicle

An automatic transmission, stepless technology, applied in the transmission device, gear transmission device, transmission device control, etc., can solve the problems of complex structure and small speed ratio range of the stepless automatic transmission, and achieve improved power, economy, and speed The effect of increasing the specific range and simplifying the structure

Pending Publication Date: 2018-02-06
北京汽车动力总成有限公司
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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 co

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  • Stepless automatic transmission and vehicle

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[0031] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0032] The present invention aims at the problems of complex structure and small speed ratio range of the continuously variable automatic transmission in the prior art, and provides a continuously variable automatic transmission and an automobile, so that the speed ratio range of the continuously variable automatic transmission is increased, the structure is simple, and the power performance of the automobile is improved and economical.

[0033] like figure 1 As shown, the embodiment of the present invention provides a continuously variable automatic transmission, including an engine 1 and a pulley transmission mechanism 2 connected to the output shaft of the engine 1 .

[0034] It should be noted that the output shaft of the engine 1 is connected to th...

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Abstract

The invention provides a continuously variable automatic transmission and an automobile, and relates to the technical field of automobile power transmission systems. The continuously variable automatic transmission includes a pulley transmission mechanism connected with the output shaft of the engine, and also includes: a planetary gear mechanism; a differential, connected with the planetary gear mechanism, and the differential includes a transmission output shaft; a transmission gear set, and The output shaft of the engine and the planetary gear mechanism are connected by transmission respectively; the clutch group connected with the planetary gear mechanism and the transmission gear set respectively, the clutch group includes a first clutch and a second clutch. The present invention sets the planetary gear mechanism connected with the differential and the clutch sets respectively connected with the planetary gear mechanism and the transmission gear set, and by changing the working state of each clutch in the clutch set, the speed ratio range of the continuously variable automatic transmission is increased, and the structure Simple, improve the power and economy of the car.

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...

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Application Information

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IPC IPC(8): F16H3/76F16H63/30F16H37/12
CPCF16H3/76F16H37/12F16H63/30
Inventor 雷娟王兆辉贺燕铭田安民李继凯孙振杰姜强
Owner 北京汽车动力总成有限公司
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