Shift-selecting and changing actuating mechanism for automatic speed transmission

A technology for shifting actuators and automatic transmissions, which is applied in the direction of mechanical equipment, transmission control, and components with teeth, etc. It can solve the problems of poor gear selection and shift control accuracy, complex overall structure of the shift shaft, etc. problem, to achieve the effect of improving reliability, compact structure and high transmission efficiency
CN101424340AActive Publication Date: 2009-05-06CHONGQING TSINGSHAN IND
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHONGQING TSINGSHAN IND
Publication Date
2009-05-06

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Abstract

The invention provides a gear choosing-shifting actuator for automatic speed changers, which comprises a gear-choosing actuator and a gear-shifting actuator, wherein the gear-choosing actuator comprises a gear-choosing guide shaft (4), a gear-choosing guide shaft gear (6) and a gear-choosing guide shaft angle sensor (7), and the gear-shifting actuator comprises a gear-shifting shaft (19), a gear-shifting sensor shaft (3), a gear-shifting rocker arm (32), a gear-shifting shaft rack (21) and a gear-shifting sensor shaft angle sensor (18). The gear choosing-shifting actuator is characterized in that the gear-choosing actuator and the gear-shifting actuator mesh with each other through the gear-shifting shaft rack (21) and the gear-choosing guide shaft gear (6). Due to the technical proposal, the gear choosing-shifting actuator has the advantages of compact structure, high transmission efficiency and strong gear choosing-shifting reliability.
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Description

Technical field

[0001] The invention relates to a gear selection and shift actuator of an automatic transmission. Background technique

[0002] Current manual transmissions, especially multi-block manual transmission vehicles, require the driver to frequently shift gears to meet the needs of the engine power during driving, which causes a lot of physical exertion of the driver, and is prone to the situation of shifting wrong gears or failing to shift gears. In order to overcome the above deficiencies, a mechanical automatic transmission is used in the existing vehicles, which adds an automatic variable speed control system on the basis of a stepped mechanical fixed shaft transmission system, and electronically controls the gear selection mechanism to replace manpower. Complete gear selection and shifting.

[0003] Mechanical automatic transmissions can be divided into electro-hydraulic, electro-pneumatic and electromechanical according to the source of driving power. Altho...

Claims

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