Three-gear wire control automatic transmission of electric vehicle

An automatic transmission, electric vehicle technology, applied in the direction of transmission control, transmission, gear transmission, etc., can solve the problems of complex overall structure of transmission, increase control difficulty and complexity, high cost, achieve compact structure, reduce size, space saving effect

Active Publication Date: 2015-03-04
SHANDONG UNIV OF TECH
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  • Abstract
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Problems solved by technology

These hydraulic control mechanisms make the overall structure of the transmis

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  • Three-gear wire control automatic transmission of electric vehicle
  • Three-gear wire control automatic transmission of electric vehicle
  • Three-gear wire control automatic transmission of electric vehicle

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[0024] The following describes the technical solutions in the embodiments of the present invention in detail with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all the embodiments; Embodiments, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

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

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Abstract

The invention discloses a three-gear wire control automatic transmission of an electric vehicle. one end of an input gear is connected with an input shaft of the transmission, and the other end of the input gear is frequently engaged to a first-gear high speed gear, a second-gear high speed gear, a third-gear high speed gear and a reverse-gear idle gear along the peripheral outer side of the gear; the first-gear high speed gear, the second-gear high speed gear, the third-gear high speed gear and a reverse-gear high speed gear are respectively connected with a first-gear main shaft, a second-gear main shaft, a third-gear main shaft and a reverse-gear main shaft through a first-gear electromagnetic clutch, a second-gear electromagnetic clutch, a third-gear electromagnetic clutch and a reverse-gear electromagnetic clutch; the first-gear main shaft, the second-gear main shaft, the third-gear main shaft and the reverse-gear main shaft are distributed at the periphery of an intermediate shaft of the transmission; an electric control unit controls the joint and the separation of all gears of high speed gears and a driving gear through all gears of electromagnetic clutches to realize the wire control gear shifting control of the three-gear wire control automatic transmission of the electric vehicle. The three-gear wire control automatic transmission of the electric vehicle has such advantages as compact structure, wire control power gear shifting and no mechanical or hydraulic gear shifting 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, a three-speed wire-controlled automatic transmission for an electric vehicle. 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 v...

Claims

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Application Information

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IPC IPC(8): F16H61/04F16H61/02
CPCF16H3/44F16H59/044F16H61/0204
Inventor 曲金玉任传波田香玉殷允朝朱慎超
Owner SHANDONG UNIV OF TECH
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