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a multi-speed transmission

A multi-speed transmission and transmission technology, applied in the direction of vehicle gearbox, multi-gear ratio transmission device, transmission device, etc., can solve the problems of small transmission ratio range, slow shifting response speed, and shifting stumbling, and achieve the overall transmission ratio. Good characteristics, fast shift response, and good fuel economy

Active Publication Date: 2019-02-15
CHINA NORTH VEHICLE RES INST
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The currently popular seven-speed planetary automatic transmission has a relatively small range of transmission ratios and cannot meet the needs of vehicles for transmission ratios. Therefore, it is necessary to provide a multi-speed transmission to meet the requirements of vehicles for gear positions.
[0003] The inventor finds through long-term observation and research that there are the following problems in the automatic transmission for vehicles: 1, the step ratio between adjacent gears is large, the transmission ratio range is small, uneconomical, and the vehicle dynamics are poor
2. The vibration is relatively large during the working process, which affects the normal operation of the vehicle and costs a lot of maintenance
3. The response speed of shifting is slow, the shifting frustration is obvious, and the car's handling is poor

Method used

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Embodiment 1

[0055] Such as figure 1 As shown, a multi-speed transmission includes a planetary row, an input member 1 and an output member 2 installed at both ends respectively connected to the corresponding input shaft and output shaft; a transmission member, a brake and a clutch,

[0056] The planetary rows are: planetary row PGS1 to planetary row PGS4;

[0057] The transmission components are: transmission components 3 to 7;

[0058] The brakes are: brake B1 to brake B4;

[0059] The clutches include a clutch C1 and a clutch C2.

[0060] The planetary row PGS1 includes a sun gear S1 connected to the input member 1, a planet carrier CA1 connected to the transmission member 3, and a ring gear R1 connected to the transmission member 4;

[0061] The planetary row PGS2 includes a sun gear S2 connected to the input member 1, a planet carrier CA2 connected to the transmission member 6, and a ring gear R2 connected to the transmission member 7;

[0062] The planetary row PGS3 includes a sun...

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PUM

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Abstract

The invention provides a multi-gear transmission which comprises planet rows, an input component, an output component, transmission components, brakes and clutches. The input component and the output component are arranged at the two ends and connected with a corresponding input shaft and a corresponding output shaft respectively. The planet rows comprise the planet row PGS1, the planet row PGS2, the planet row PGS3 and the planet row PGS4. The transmission components comprise the transmission component (3), the transmission component (4), the transmission component (5), the transmission component (6) and the transmission component (7). The brakes comprise the brake B1, the brake B2, the brake B3 and the brake B4. The clutches comprise the clutch C1 and the clutch C2. The transmission has the beneficial effects of having multiple gears and being good in fuel economical efficiency, small in size and light.

Description

technical field [0001] The invention relates to a transmission device, in particular to an eleven-speed planetary transmission of an automobile drive system. Background technique [0002] As an automatic transmission for vehicles, the power of the internal combustion engine is transmitted to the input shaft of the transmission through the torque converter. After the current gear is shifted, the power is output from the output shaft and transmitted to the left and right drive wheels through the differential. Automatic transmissions generally consist of multiple planetary rows, brakes and clutches. The currently popular seven-speed planetary automatic transmission has a relatively small range of transmission ratios and cannot meet the requirements of vehicles for transmission ratios. Therefore, it is necessary to provide a multi-speed transmission to meet the requirements of vehicles for gear positions. [0003] The inventor finds through long-term observation and research th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/62F16H59/02
CPCF16H3/62F16H59/02F16H2200/0073F16H2200/0082
Inventor 王明成赵凯冯光军肖洁郭建娟王景霞张勇石彦辉尹顺良姜宏暄韩宇石望运虎王叶刘越梁润华李志伟李翠芬徐飞
Owner CHINA NORTH VEHICLE RES INST
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