Four-gear mechanical automatic transmission power assembly system based on planetary gear mechanisms

A technology for automatic transmissions and planetary gears, applied in gear transmissions, mechanical equipment, belts/chains/gears, etc., can solve the problems of small number of gears and complex structures, etc., achieve fast switching, reduce processing difficulty, and reduce size Effect

Active Publication Date: 2016-03-16
包头北奔重汽桥箱有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0007] At present, the patents related to the planetary gear transmission mechanism generally use two sets of planetary gear systems or compound planetary gears to realize two-gear shifting, with a small number of gears; or use the planetary gear system in series with the traditional gear transmission mechanism to perform multiple gears. Bit shift, the structure is more complex

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  • Four-gear mechanical automatic transmission power assembly system based on planetary gear mechanisms

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0031] Such as figure 1 As shown, a four-speed mechanical automatic transmission powertrain system based on a planetary gear mechanism includes an engine 1, a main clutch 2, an electric motor 3, a first planetary row, a second planetary row, a transmission output shaft 15, and a transmission input shaft 22;

[0032] The input shaft of the mai...

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Abstract

The invention discloses a four-gear mechanical automatic transmission power assembly system based on planetary gear mechanisms. The four-gear mechanical automatic transmission power assembly system comprises an engine, a main clutch, a motor, a first planet row, a second planet row, two engagement devices, three auxiliary clutches, an electromagnetic brake, two brakes, a gear ring, and a transmission input shaft as well as a transmission output shaft; the first planet row, the second planet row and a splined hub are orderly arranged on the transmission input shaft; the splined hub is engaged with an engagement sleeve; and switching of four forward gears, a neutral gear and a reverse gear is realized by means of mutual cooperation of the engagement sleeve, the electromagnetic brake and the clutches. Compared with a traditional mechanical transmission, the four-gear mechanical automatic transmission power assembly system based on the planetary gear mechanisms is provided with no synchronizer, and instead, the motor is adopted for accurate speed regulation to realize smooth gear shifting, and two planetary gear mechanisms are used to take the place of traditional a plurality of pairs of gear mechanism; as a result, the overall mechanism is simple, small in volume, low in cost and easy to manufacture.

Description

technical field [0001] The invention belongs to the technical field of vehicle automatic transmissions, and relates to a vehicle power transmission automatic transmission mechanism, in particular to a four-speed mechanical automatic transmission power assembly system based on a planetary gear mechanism. Background technique [0002] Compared with traditional internal combustion engine vehicles, the emergence of hybrid vehicles and electric vehicles is more in line with the modern trend of high efficiency, energy saving and environmental protection. As one of the core components of the vehicle, the technical level of the transmission affects the overall performance of the vehicle. [0003] For hybrid vehicles, on the basis of making use of the deceleration and distance increase of the transmission, it focuses on solving a series of problems such as the large volume and weight of the transmission, high cost, and difficult processing. For electric vehicles, single-stage reduce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/46
CPCF16H3/46
Inventor 何仁徐益强
Owner 包头北奔重汽桥箱有限公司
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