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Electric finger pin joint device type three-gear automatic transmission for electric vehicle

A technology of automatic transmission and coupling device, which is applied in the direction of transmission, vehicle gearbox, gear transmission, etc., can solve the problems of increased control difficulty and complexity, high cost, and complex overall structure of the transmission, so as to improve acceleration performance and driving The effect of comfort, light weight and small size

Active Publication Date: 2015-11-25
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These hydraulic control mechanisms make the overall structure of the transmission complex, high cost and increase the difficulty and complexity of control

Method used

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  • Electric finger pin joint device type three-gear automatic transmission for electric vehicle
  • Electric finger pin joint device type three-gear automatic transmission for electric vehicle
  • Electric finger pin joint device type three-gear automatic transmission for electric vehicle

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Embodiment Construction

[0038] Below in conjunction with the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention are described in detail. Obviously, the described embodiments are only part of the embodiments of the present invention, not all embodiments; based on the present invention Embodiments, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0039] like figure 1 As shown, a kind of electric finger joint device type three-speed automatic transmission for electric vehicles of the present invention includes a transmission housing 4, a transmission input shaft 41, an input gear 5, a first gear input gear 6, a second gear input gear 7, a first gear Driving gear 8a, first-speed driven gear 8b, second-speed driving gear 9a, second-speed driven gear 9b, first-speed electric finger engagement device 10, second-speed electric finge...

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Abstract

The invention discloses an electric finger pin joint device type three-gear automatic transmission for electric vehicle. An input gear is mounted on an input shaft of a transmission, and is normally engaged with a first-gear input gear and a second-gear input gear; the first-gear input gear, the second-gear input gear and the input gear are fixedly connected with output discs of first-gear, second-gear and third-gear electric finger pin joint devices; and the gear shifting control of the electric finger pin joint device type three-gear automatic transmission is realized through controlling the joint and the separation of the first-gear, second-gear and third-gear electric finger pin joint devices. When electric finger pin valves of the electric finger pin joint devices are not electrified, the output discs are in a separation state under the effect of return springs; and when the electric finger pin valves are electrified, electric finger pins overcome elastic force to move to the direction of the output discs under the effect of electromagnetic force, and slide into arc annular grooves in a rotating state, the output discs are pushed to synchronously rotate, and the joint devices are joined. The electric finger pin joint device type three-gear electric vehicle automatic transmission has such advantages as compact structure, capability of shifting gears through power and no mechanic or hydraulic gear shifting parts.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle transmission, and relates to an automatic transmission for electric vehicles, more precisely, an electric finger joint device-type three-speed automatic transmission for electric vehicles. Background technique [0002] Automatic transmissions are widely used in various vehicles such as automobiles, electric vehicles, and construction machinery. Existing automatic transmissions mainly include hydromechanical automatic transmission (AT), metal belt continuously variable automatic transmission (CVT), mechanical automatic transmission (AMT), and double clutch automatic transmission (DCT). [0003] The above-mentioned four types of automatic transmissions all adopt electronically controlled hydraulic servo devices to realize the control of the gear shifting process. The structure is complicated, the cost is high, and the control difficulty and complexity are increased. In particular, the actu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/093F16H61/28F16H63/30
CPCF16H3/093F16H61/28F16H63/304F16H2061/2853F16H2063/305F16H2200/00F16H2306/00
Inventor 曲金玉张攀殷允朝
Owner SHANDONG UNIV OF TECH
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