Single row planetary gear train two-gear automatic mechanical transmission for electrocar

A single-row planetary and electric vehicle technology, applied to mechanical equipment, transmission devices, transmission device parts, etc., can solve problems such as high cost and small transmission ratio range, and achieve the effect of saving power and smooth shifting

Inactive Publication Date: 2014-05-28
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problems in this prior art are: 1. There are multiple energy sources input, including an internal combustion engine and two electric motors, and there is motion interference when working in parallel mode; 2. The dual-clutch structure is used, and the cost is relatively high; The planetary gear mechanism realizes the transmission, and the transmission ratio range is small

Method used

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  • Single row planetary gear train two-gear automatic mechanical transmission for electrocar
  • Single row planetary gear train two-gear automatic mechanical transmission for electrocar

Examples

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Embodiment 1

[0018] Such as figure 1 As shown, the present embodiment includes: input drive motor 14, planetary gear train, first gear driving gear 7, first gear driven gear 8, second gear driving gear 5, second gear driven gear 10, shift brake 6, synchronizer 9, Shift linkage mechanism, reducer and differential, wherein: the input end of the planetary gear train is connected with the input driving motor 14, the output end is respectively connected with the first-speed driving gear 7 and the second-speed driving gear 5, and the input ends of the reducer are respectively It is connected with the first-gear driven gear 8 and the second-gear driven gear 10, and the output end is connected with the differential. meshing, the two ends of the shift lever 17 of the shift linkage mechanism are respectively provided with a shift brake 6 and a synchronizer 9, and the shift brake 6 is controlled to lock the first gear driving gear 7 or the second gear driving gear 5, and at the same time, the linkage...

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PUM

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Abstract

The invention relates to a single row planetary gear train two-gear automatic mechanical transmission for an electrocar in the field of electrocar transmission arrangement. The transmission comprises an input drive motor, a planetary gear train, a first-gear driving gear, a first-gear driven gear, a second-gear driving gear, a second-gear driven gear, a shifting brake, a synchronizer, a shifting link gear, a speed reducer and a differential mechanism, the shifting brake for locking the first-gear driving gear or the second-gear driving gear and the synchronizer for synchronizing the second-gear driven gear or the first driven gear are respectively located at two ends of the shifting link gear, and the shifting brake and the synchronizer are in linkage by the shifting link gear to realize the actuating of the transmission. The automatic mechanical transmission overcomes power impact caused by speed difference during shifting, eliminates speed difference, achieves a smooth shifting effect and realizes automatic change between gears.

Description

technical field [0001] The invention relates to a device in the field of electric vehicle transmission arrangement, in particular to a single-row planetary gear train two-speed mechanical automatic transmission for electric vehicles. Background technique [0002] In traditional cars, in order to adapt to the working characteristics of the engine and meet the requirements of the car, a multi-speed gearbox is used. The traditional multi-speed transmission is basically a single intermediate shaft or double intermediate shaft structure, which is input from the input shaft and transmitted to the output shaft through the intermediate shaft. [0003] Electric vehicles are new, energy-saving, environmentally friendly, and clean vehicles, especially in today's environment of severe air pollution, with great development potential and broad application prospects. An electric vehicle uses an electric motor instead of a conventional car's engine. The electric motor can be started with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H37/08F16H57/08F16H61/32
CPCF16H37/082F16H59/044F16H61/32
Inventor 张建武鲁统利周浩李鸿魁周斌
Owner SHANGHAI JIAO TONG UNIV
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