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Parking mechanism and control method applied to automated mechanical transmission (AMT)

A transmission control and parking mechanism technology, applied in the direction of transmission control, mechanical equipment, components with teeth, etc., can solve the problems of no gear shifting mechanism, no P gear parking function, etc., to achieve convenient control and easy Manufacturing, low cost effect

Active Publication Date: 2013-04-24
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because the selection and shifting of the existing AMT is to send a signal to the TCU through the electronic shifter, and to realize the selection and shifting through the actions of the TCU to control the motor, etc., there is no cable-type shifting operating mechanism like the AT, CVT, and DCT. Due to the limitation of this structure of AMT, the existing AMT can only be parked through the handbrake when parking, and there is no P gear parking function.

Method used

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  • Parking mechanism and control method applied to automated mechanical transmission (AMT)
  • Parking mechanism and control method applied to automated mechanical transmission (AMT)
  • Parking mechanism and control method applied to automated mechanical transmission (AMT)

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Embodiment Construction

[0024] Further illustrate structure of the present invention below in conjunction with accompanying drawing:

[0025] Such as figure 1 As shown, the P gear mechanical actuator provided by the present invention includes a parking motor 001 outside the transmission case, a worm gear assembly inside the transmission case, a gear 004, a screw 005, a parking ratchet 010 and a parking ratchet Claw 007.

[0026] The worm gear assembly consists of a worm 002 and a worm gear 003 on the worm shaft. One end of the worm shaft protrudes from the transmission case and is connected to the P gear sensor 011. The signal is transmitted to the TCU to determine the position of the P gear cam, so as to decide when to send a working signal to the parking motor, and realize the control of the P gear in turn. The parking motor is connected with the worm, and the worm is meshed with the worm gear.

[0027] A gear 004 is coaxially installed on the worm shaft, which meshes with the screw 005. The up...

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Abstract

A parking mechanism applied to an automated mechanical transmission (AMT) comprises a transmission control unit (TCU), a P gear sensor and a P gear mechanical execution mechanism. The P gear mechanical execution mechanism comprises a parking motor arranged outside a transmission box body and a transmission mechanism, a parking cam, a parking ratchet wheel and a parking pawl which are arranged inside the transmission box body. A set of P gear parking mechanism is added on a traditional AMT, a P gear control and driving unit is added in the TCU, and accordingly the P gear parking function of the AMT is achieved. The P gear parking mechanism is simple in structure, easy to manufacture, low in cost and convenient to control and can be massively applied to AMTs to achieve parking of the AMTs.

Description

technical field [0001] The invention relates to a gear position control mechanism of a transmission, in particular adding a P-gear parking mechanism to an AMT transmission to realize the P-gear parking function of the AMT transmission. Background technique [0002] The automatic transmission is easy to operate and brings great convenience to people's driving. The AMT automatic transmission is based on the traditional manual transmission by adding corresponding actuators and control units to realize automatic gear shifting. The AMT transmission has the highest transmission efficiency of the manual transmission. Efficiency, good power economy, low cost, but also the ease of operation of an automatic transmission. [0003] Because the selection and shifting of the existing AMT is to send a signal to the TCU through the electronic shifter, and to realize the selection and shifting through the actions of the TCU to control the motor, etc., there is no cable-type shifting operatin...

Claims

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Application Information

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IPC IPC(8): F16H63/34
Inventor 何峥王占鑫
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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