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Multi-position line-control automatic transmission for electric automobile

A technology for automatic transmissions and electric vehicles, applied in transmission control, transmissions, gear transmissions, etc., can solve problems such as high cost, increased control difficulty and complexity, complex overall structure of the transmission, etc., and achieve compact structure and reduced size , the effect of simplifying the structure

Active Publication Date: 2015-03-04
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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  • Multi-position line-control automatic transmission for electric automobile
  • Multi-position line-control automatic transmission for electric automobile
  • Multi-position line-control automatic transmission for electric automobile

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Embodiment Construction

[0024] 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.

[0025] Such as Figure 1 to Figure 3 As shown, the electric vehicle multi-block automatic transmission by wire of the present invention includes a motor 1, an input shaft ring gear 3, a transmission input shaft 23, a transmission intermediate shaft 24, a transmission output shaft 25, a housing 2, and an electronic control unit 100; One end of the shaft inner ring gear 3 is connected to one end of the transmission input shaft 23, and the other end of the transmission input shaft 23 is ...

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Abstract

The invention discloses a multi-position line-control automatic transmission for an electric automobile. One end of an internal ring gear of an input shaft is connected with an input shaft of the transmission, and the other end of the internal ring gear of the input shaft is sequentially engaged with a first-position high-speed gear, a second-position high-speed gear, a third-position high-speed gear and a fourth-position high-speed gear along the inner side of the periphery of a gear. The first-position high-speed gear, the second-position high-speed gear, the third-position high-speed gear and the fourth-position high-speed gear are respectively connected with a first-position main shaft, a second-position main shaft, a third-position main shaft and a fourth-position main shaft through a first-position electromagnetic clutch, a second-position electromagnetic clutch, a third-position electromagnetic clutch, and a fourth-position electromagnetic clutch. The first-position main shaft, the second-position main shaft, the third-position main shaft and the fourth-position main shaft are distributed at the periphery of a central shaft of the transmission. The engagement and separation of all high-speed gears of all electromagnetic clutches with driving gears is controlled by an electric control unit, thereby achieving line-control gear shift of the transmission. The transmission is compact in structure, employs line-control gear shift, and has no machines or hydraulic gear shift parts.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle transmission, and relates to an electric vehicle automatic transmission, more precisely, an electric vehicle multi-speed wire-controlled automatic transmission. Background technique [0002] In order to solve the two world-wide problems of energy crisis and environmental pollution, electric vehicle technology has become the main direction of future automobile development. As the power source of electric vehicles, the electric motor has the mechanical characteristics of constant torque at low speed and constant power at high speed, and has a wide speed range. The output requirements of the motor are very high, and the motor needs to have a high peak torque and a wide speed range. In order to better meet the requirements of power and economy, the development of electric vehicle transmission system tends to be multi-speed. [0003] Automatic transmissions are widely used in various vehicle...

Claims

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Application Information

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IPC IPC(8): F16H3/44F16H61/32F16H61/02
CPCF16H3/44F16H61/0204F16H61/32
Inventor 曲金玉任传波田香玉王吉华
Owner SHANDONG UNIV OF TECH
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