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Gear shifting device for multi-speed transmission of electric vehicles

A technology of multi-speed transmission and shifting device, which is applied in the direction of vehicle gearbox, transmission device control, multi-ratio transmission device, etc., can solve the problems of vehicle weight increase and production cost increase, and achieve weight reduction, structure simplification, and maintenance The effect of controlling reliability

Active Publication Date: 2020-05-26
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Applicants have found that separate control motors (i.e. one control motor for the shift unit for shifting gears and another control motor for the park unit to engage and release the park gear) can result in multiple gears Complex structure of the transmission, resulting in increased production costs due to the increased number of parts required, and increased vehicle weight

Method used

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  • Gear shifting device for multi-speed transmission of electric vehicles
  • Gear shifting device for multi-speed transmission of electric vehicles
  • Gear shifting device for multi-speed transmission of electric vehicles

Examples

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Embodiment Construction

[0027] The following description is merely exemplary in nature and is not intended to limit the invention, application or use. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0028] The size and thickness of each component shown in the drawings are arbitrarily shown in the drawings for better understanding and ease of description, but the present invention is not limited to this illustration. In the drawings, the thicknesses of various parts and regions are exaggerated for clarity.

[0029] The drawings and description are to be regarded as illustrative in nature rather than restrictive, and like reference numerals refer to like elements throughout the specification.

[0030] In the following description, distinguishing the names of components into first, second, etc. is for distinguishing the names because the names of the components are the same as each other, and the order thereof i...

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PUM

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Abstract

The invention relates to a gear shifting device for multi-speed transmission of electric vehicles. The gear shifting device for a multi-speed transmission for an electric vehicle includes a shifting unit controlling gear shifting by a torque of an actuator, and a parking unit controlling a parking state by the torque of the actuator. In particular, the actuator includes a control motor transmitting a driving torque to a first driven gear and a second driven gear through a drive gear externally gear-meshed with the driven gears, and the shifting unit includes: a shift fork slidably mounted on afork rail and activating the gear shifting; a profile drum connected to the first driven gear externally engaged with the drive gear, and having a profile groove formed along an exterior circumference of the profile drum; and a shift lug integrally formed with the shift fork and coupled with the profile groove.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2018-0142796 filed on November 19, 2018, the entire contents of which are incorporated herein by reference for all purposes. technical field [0003] The invention relates to a shifting device for a multi-speed transmission of an electric vehicle. Background technique [0004] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0005] An automatic manual transmission (AMT), a dual clutch transmission (DCT) or a multi-speed transmission for an electric vehicle is generally applied to apply an automatic shift gear having a gearing to a gearing of a conventional manual transmission. Such a transmission is usually provided with a park actuator for automatic parking, and a shift actuator for automatic gear shifting. [0006] Multi-speed transmissions for electric veh...

Claims

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Application Information

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IPC IPC(8): F16H59/02F16H63/32F16H63/34
CPCF16H59/02F16H63/32F16H63/3466F16H61/32F16H63/3433F16H2061/2869F16H63/18F16H63/304F16H2063/3056F16H2200/0021F16H63/38B60Y2200/91F16H63/3013F16H2063/321F16H2061/223F16H2063/3083
Inventor 权纯星鱼顺基康马禄蔡民浩申容旭金千玉
Owner HYUNDAI MOTOR CO LTD
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