Automatic gear shifting mechanism of transmission

Abstract

The invention discloses an automatic gear shifting mechanism of a transmission. The automatic gear shifting mechanism comprises a first push-pull electromagnet, a second push-pull electromagnet, a gear selection and shifting mechanism, a control mechanism and a controller, wherein the first push-pull electromagnet and the second push-pull electromagnet are sequentially connected in series, the gear selection and shifting mechanism is provided with a position sensor used for detecting the push-pull electromagnets, the controller is correspondingly connected with the first push-pull electromagnet, the second push-pull electromagnet, the gear selection and shifting mechanism and the control mechanism, the first push-pull electromagnet is fixedly arranged in a transmission shell, one end of the gear selection and shifting mechanism is connected with the second push-pull electromagnet, and the controller collects a detection signal of the position sensor to judge to generate four gear selection positions and to judge whether the gear selection is in place or not, and sends an instruction to the control mechanism to realize gear shifting. According to the automatic gear shifting mechanism, under the condition that the integral arrangement of an existing AMT and an existing DCT is not changed, only an operation cover assembly needs to be changed, a control module is added, and then automatic gear shifting can be achieved.

Description

technical field [0001] The invention relates to a technology in the field of automobile transmissions, in particular to an automatic shifting mechanism of a transmission. Background technique [0002] With the rapid development of transmissions, there are more and more design requirements for electric shifting mechanisms. Both AMT and DCT can apply electric shifting technology. However, the structure of automatic transmissions is more complicated than that of ordinary transmissions, and it is easy to appear out of sync during acceleration. , Frustrated situation, low transmission efficiency, due to the use of hydraulic control, the leakage of hydraulic oil will cause pollution to the environment. AMT is prone to the problem of low shifting stability, while DCT has a relatively small technical popularity and high production costs. Contents of the invention [0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention proposes an automatic shif...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of transmissions, there are more and more design requirements for electric shifting mechanisms. Both AMT and DCT can apply electric shifting technology. However, the structure of automatic transmissions is more complicated than that of ordinary transmissions, and it is easy to appear out of sync during acceleration. , Frustrated situation, low transmission efficiency, due to the use of hydraulic control, the leakage of hydraulic oil will cause pollution to the environment

AMT is prone to the problem of low shift stability, while DCT technology is relatively small and the production cost is high

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