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Four-gear AMT (Automated Mechanical Transmission) gear shifting actuating mechanism for electric vehicles

A shift actuator, electric vehicle technology, applied in mechanical equipment, transmission control, components with teeth, etc., can solve the problems of complex structure of shift mechanism, long shift time, etc. Block time, good reliability

Pending Publication Date: 2017-08-18
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the technical problem of complex structure of the shifting mechanism and long shifting time, the present invention designs and develops a four-speed AMT shifting actuator for electric vehicles

Method used

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  • Four-gear AMT (Automated Mechanical Transmission) gear shifting actuating mechanism for electric vehicles
  • Four-gear AMT (Automated Mechanical Transmission) gear shifting actuating mechanism for electric vehicles
  • Four-gear AMT (Automated Mechanical Transmission) gear shifting actuating mechanism for electric vehicles

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0041] The invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth again, but rather these embodiments are provided so that this disclosure will be thorough and complete. In the drawings, the size and relative sizes of structures and regions may be exaggerated for clarity.

[0042] Such as Figure 1-5 As described above, the present invention provides a four-speed AMT shift actuator for electric vehicles, including: a housing 600; two shift motors, namely the first shift motor 110 and the second shift motor 120; the first lead screw 210 , which is provided with an external thread, one end of the first lead screw 210 is connected to the first shift motor 110; the first nut 310 is provided with an internal thread co...

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Abstract

The invention discloses a four-gear AMT (Automated Mechanical Transmission) gear shifting actuating mechanism for electric vehicles. The mechanism comprises a shell, two gear shifting motors, screw rods, nuts, gear shifting heads and gear shifting shafts, wherein the gear shifting motors are arranged on the shell; external threads are formed in the screw rods; one ends of the screw rods are respectively connected with the corresponding gear shifting motors; the nuts are sleeved on the screw rods and can be moved along directions of the screw rods; internal threads corresponding to the external threads are formed in the nuts; U-shaped grooves are arranged in upper parts of the gear shifting heads and connected with the nuts through clearance fit; the gear shifting shafts are respectively sleeved in the corresponding gear shifting heads; and the screw rods, the nuts, the gear shifting heads and the gear shifting shafts are arranged in the shell. The gear shifting actuating mechanism disclosed by the invention is simple in structure and has the advantages that gear selecting is not needed, so that the gear shifting time is reduced; and rubber gaskets having a certain flexibility are arranged between shafts of the screw rods and the gear shifting motors, so that impact and vibration are avoided in the gear shifting process.

Description

technical field [0001] The invention relates to the technical field of automatic transmissions for electric vehicles, and more specifically, the invention relates to a four-speed AMT shift actuator for electric vehicles. Background technique [0002] At present, most of the shifting mechanisms used for four-speed AMT in China are similar to those of traditional manual transmissions. In this structure, all shifting shafts share one shifting dial. When two gears that are not on the same shifting shaft are switched At this time, the shift dial should be adjusted to the position of the shift shaft where the target gear is located, that is, the gear selection process is completed, and then the shift dial is driven by the shift shaft to realize gear shifting. The essential gear selection process in this process increases the shift time, thereby increasing the power interruption time of the shift process, which affects the power and economy of the car. The structure of the traditi...

Claims

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Application Information

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IPC IPC(8): F16H59/02F16H61/32F16H61/04
CPCF16H59/02F16H61/04F16H61/32F16H2061/326
Inventor 雷雨龙刚晓新李兴忠付尧闫博陈巍孙飞
Owner JILIN UNIV
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