Automobile planetary gear transmission

A technology of speed change device and planetary gear, applied in the field of automobile transmission system, can solve the problems of complex structure of planetary gear mechanism, large shifting impact, complicated power transmission, etc., to solve different driving requirements, good power transmission and speed change, investment low cost effect

Inactive Publication Date: 2019-09-27
ZHEJIANG GEELY HLDG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of the automatic transmission system in the prior art, the planetary gear mechanism with complex structure, complex power transmission and large shifting impact

Method used

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  • Automobile planetary gear transmission
  • Automobile planetary gear transmission
  • Automobile planetary gear transmission

Examples

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Embodiment 1

[0036] Such as Figure 1-4 As shown, the first embodiment of the present invention is an automotive planetary gear transmission device, including a split planetary gear set 4 and a compound planetary gear set 5 arranged on the same axis, the split planetary gear set 4 and the compound planetary gear set 5 A plurality of engagement elements 6 and a plurality of brake elements 7 are provided on the outer side of the diverter planetary gear set 4; the splitter planetary gear set 4 includes a splitter planetary sun gear 401, a splitter planetary ring gear 403, a splitter planet carrier 404 and a plurality of splitters A star pinion 402, the split planetary sun gear 401 is connected to the motor rotor 302, one end of the split planetary gear ring 403 meshes with the plurality of split planetary pinions 402, the split planetary gear ring 403 The other ends of the two are respectively connected to the second clutch 602 and the third clutch 603, the multiple split planetary pinions 402...

Embodiment 2

[0069] Such as Figure 5 As shown, the difference between Embodiment 2 of the present invention and Embodiment 1 is that the planetary gear transmission device is further provided with a fourth brake 705, and the fourth brake 705 is provided on the split planetary gear set 4 and the motor. 3, the active end of the fourth brake 704 is connected to the split planetary sun gear 401 and the motor rotor 302, and the passive end of the fourth brake 704 is fixed on the transmission housing 9.

[0070] Compared with embodiment 1, the braking effect of embodiment 2 of the present invention is better and more reliable. The other functions that can be implemented in the second embodiment are the same as those in the first embodiment.

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Abstract

The invention discloses an automobile planetary gear transmission. The automobile planetary gear transmission comprises a split planetary gear set and a compound planetary gear set which are arranged on the same axis. The split planetary gear set comprises a split planetary sun gear, a split planetary ring gear, a split planetary carrier and a plurality of split planetary pinions; the split planetary sun gear is connected to a motor rotor; one end of the split planetary ring gear meshes with the plurality of split planetary pinions and the other end of the split planetary ring gear is separately connected to a second clutch and a third clutch; the plurality of split planetary pinions are supported on the split planetary carrier by bearings; the middle part of the split planetary carrier is connected to a first clutch and a third brake to be a whole through an engine output shaft; and through the engagement or disengagement of a plurality of engagement components and a plurality of braking components, the split planetary gear set and the compound planetary gear set output the rotation of a motor and an engine by speed changing. The automobile planetary gear transmission can reduce the impact of the transmission during gear shifting and improve the comfort of gear shifting.

Description

Technical field [0001] The invention belongs to the field of automobile transmission systems, and particularly relates to an automobile planetary gear transmission device. Background technique [0002] Most of the transmission mechanisms of automatic transmissions are based on the principle of gear transmission, and most automatic transmissions use planetary gear transmission mechanisms. The transmission mechanism can provide different transmission ratios, which improves the power and economy of the car. The transmission ratio of the gear mechanism is all stepped, and the transmission ratio of the automatic transmission is automatically selected by the control system through the action and release of the shift actuator. A simple planetary gear mechanism is the basis of a transmission mechanism. A general automatic transmission is composed of two or more rows of planetary gear mechanisms. [0003] The types of planetary gear transmission mechanisms used in automatic transmissions f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/365B60K6/547F16H3/70
CPCB60K6/365B60K6/547F16H3/70F16H2200/0052F16H2200/2007F16H2200/2051
Inventor 李传海梁健
Owner ZHEJIANG GEELY HLDG GRP CO LTD
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