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Double overrunning clutch shaft sleeve output automatic speed changing electric drive system with input of planetary gear train

A technology of electric drive system and planetary gear train, applied in the direction of vehicle gearbox, gear transmission, control/regulation system, etc., to achieve the effect of improving overall efficiency, smooth load change and strong adaptability

Active Publication Date: 2019-07-23
SOUTHWEST UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In view of this, the purpose of the present invention is to provide an automatic variable speed electric drive system with double overrunning clutch sleeve output from planetary gear train input, and a reverse gear mechanism with strong adaptability is added. Under the condition of driving force, it can automatically shift gears and change gears, and can solve the problem of high-efficiency road forward and reverse driving under complex conditions under two-way driving conditions, and the setting is simple and compact, and the cam adaptive automatic transmission mechanism Cooperate smoothly and naturally, reduce manufacturing cost and ensure the stability of transmission

Method used

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  • Double overrunning clutch shaft sleeve output automatic speed changing electric drive system with input of planetary gear train
  • Double overrunning clutch shaft sleeve output automatic speed changing electric drive system with input of planetary gear train
  • Double overrunning clutch shaft sleeve output automatic speed changing electric drive system with input of planetary gear train

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Embodiment Construction

[0045] figure 1 It is a schematic diagram of the axial section structure of the present invention, figure 2 is the transverse section view of the drive motor, image 3 It is a schematic diagram of the electromagnetic shifting structure, Figure 4 The cross-sectional view of the position electromagnetic shifting structure, as shown in the figure: the double overrunning clutch sleeve output automatic variable speed electric drive system input by the planetary gear train of the present invention includes a casing, a drive motor and a transmission, and the transmission includes a main shaft 1 and a main shaft 1 The transmission system on the upper gear, the transmission system includes a planetary gear train, a low gear transmission mechanism, a reverse gear transmission mechanism and an adaptive transmission assembly;

[0046] The adaptive transmission assembly includes a driven friction member 2, an active friction member 18 and a variable speed elastic element 19;

[0047] ...

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Abstract

The invention discloses a double overrunning clutch shaft sleeve output automatic speed changing electric drive system with input of a planetary gear train. The planetary speed reduction input is adopted. A speed changing system comprises a low gear transmission mechanism, a reverse gear transmission mechanism and a self-adaption speed changing assembly; the reverse gear transmission mechanism hasa transmission ratio I for transmitting reverse gear power from a counter shaft to a main shaft; the low gear transmission mechanism has a transmission ratio II for transmitting low gear power from the counter shaft to the main shaft; and the transmission ratio I is greater than or equal to the transmission ratio II. The double overrunning clutch shaft sleeve output automatic speed changing electric drive system with input of the planetary gear train makes use of reasonable cooperation of two overrunning clutches, so that the overall structure is simple and compact; the reverse gear transmission shares a transmission route with the low gear transmission and the fast gear transmission, and interference is avoided; and the overall performance of the system is guaranteed, the adaptive capacity is high, cooperation is smooth and natural, the manufacture cost is reduced, and the stability of transmission is guaranteed; and the planetary speed reduction input is adopted, a high speed motorcan be adopted as a power source, and the monolithic efficiency is improved. The double overrunning clutch shaft sleeve output automatic speed changing electric drive system not only is suitable for the field of electric cars, but also is suitable for other variable torque mechanical transmission fields.

Description

technical field [0001] The invention relates to a transmission for a motor vehicle, in particular to an electric drive system with double overrunning clutch shaft sleeve output with planetary gear train input and automatic speed change. Background technique [0002] The working conditions of mechanical transmission systems are generally complex, and torque needs to be distributed to realize the transmission of different loads and speeds. Taking electric vehicles as an example, the driving environment is complex and changeable. Moreover, the electric drive method commonly used in existing electric vehicles is a motor-driven fixed-speed ratio, and the reasonable range of high efficiency is narrow and limited, resulting in a vicious circle, resulting in the following problems: [0003] 1. It can only work within the torque range of a certain working condition. [0004] 2. In order to meet the road conditions under the condition of constant speed ratio, the speed of the motor c...

Claims

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Application Information

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IPC IPC(8): F16H3/74F16H59/02F16H63/32F16H61/02
CPCF16H3/74F16H59/02F16H63/32F16H61/0213F16H2061/0234F16H2200/0021
Inventor 薛荣生陈俊杰邓天仪谭志康邱光印王靖邓云帆梁品权
Owner SOUTHWEST UNIVERSITY
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