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An electric drive planetary gear transmission

A planetary gear and transmission technology, applied in the field of planetary gear transmission mechanisms and planetary gear transmissions, can solve the problems of high requirements for driving motors, inability to take into account economy and power, and achieve space-saving, compact structure, and stable shifting. Effect

Active Publication Date: 2016-08-03
BEIHANG UNIV
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  • Claims
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AI Technical Summary

Problems solved by technology

Since the traditional fixed transmission ratio transmission has high requirements on the drive motor and cannot balance economy and power, the development of multi-speed automatic transmissions for electric vehicles has become an irresistible trend

Method used

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  • An electric drive planetary gear transmission

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Embodiment Construction

[0036] The following description is merely exemplary in nature and is in no way intended to limit the application or uses of the invention.

[0037] The present invention is an electrically driven planetary gear transmission, which is a second-speed electric drive transmission with a planetary gear structure, which includes a housing 0; an input member is an input shaft IN; an output member is an output shaft OUT; a Simpson compound planet Row; first interconnecting member 1; second interconnecting member 2; third interconnecting member 3; fourth interconnecting member 4; first torque transmitting device B1; second torque transmitting device B2. The relationship between them is: taking the Simpson compound planetary row as the center, the left is the input member of the transmission system, the right is the output member of the transmission system, and the two torque transmission devices are brakes, which are side by side close to the housing 0. The components are all located ...

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Abstract

The invention discloses an electrically driven planetary gear transmission. The electrically driven planetary gear transmission comprises a housing, an input component, an output component, a Simpson type compound planetary row, two torque transmission devices and four interconnection components, wherein the Simpson type compound planetary row is taken as the center; the input component of a transmission system is arranged on the left; the output component of the transmission system is arranged on the right; the two torque transmission devices are brakes and close to the housing side by side; the components are all located in the housing. The electrically driven planetary gear transmission disclosed by the invention is simple and compact in structure, high in transmission efficiency, good in manufacturability, low in manufacturing cost, stable in gear shift, and excellent in operation performance; the electrically driven planetary gear transmission can be used for a electric vehicle to carry out transmission, so that the space can be saved; the transmission efficiency is high; the planetary gear transmission can meet the working characteristics of the motor, and performs better transmission characteristics.

Description

technical field [0001] The invention provides an electrically driven planetary gear transmission, which is a two-speed planetary gear transmission mechanism and belongs to the technical field of electric vehicle automatic transmissions. Background technique [0002] With the increasing development of electric vehicles, the requirements for the performance of the transmission system are getting higher and higher. Since the traditional fixed ratio transmission has high requirements on the driving motor and cannot balance economy and power, the development of multi-speed automatic transmission for electric vehicles has become an irresistible trend. Because the planetary gear transmission mechanism has the characteristics of large transmission ratio, small size, large load capacity and stable operation, it is widely used in automatic transmissions. Therefore, the layout scheme design of the planetary row becomes the first prerequisite for the development of the automatic transm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/46
CPCF16H3/46F16H2200/0034F16H2200/2007F16H2200/2035
Inventor 刘艳芳孙汉乔韩笑唐树晗徐向阳
Owner BEIHANG UNIV
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