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Shift Control System of Automatic Transmission

A technology of automatic transmission and control system, which is applied in the direction of transmission control, geared components, fluid pressure actuators, etc. It can solve the problems of low transmission control efficiency and complex system, so as to reduce the number of components and simplify the system , high efficiency effect

Active Publication Date: 2017-11-24
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, in order to realize the shift control and safety control functions of the automatic transmission, the shift control system generally uses a large number of slide valves and solenoid valves, which makes the system more complicated and the transmission control efficiency is low

Method used

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  • Shift Control System of Automatic Transmission

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Embodiment Construction

[0016] In order to further illustrate the technical means and functions adopted by the present invention to achieve the intended invention purpose, the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0017] figure 1 For the schematic diagram of the shift control system of the automatic transmission in the embodiment of the present invention, please refer to figure 1 , the shift control system is used in automatic transmissions of automobiles, especially in dual-clutch automatic transmissions. The shift control system includes a main pump 11, a shift control valve 12, a first gear switching valve 13, a second gear switching valve 14. The first gear switching valve 15, the second gear switching valve 16, the odd-even selection valve 17, the first clutch solenoid valve 18, and the second clutch solenoid valve 19.

[0018] The main pump 11 sucks oil from the oil tank 22 through the oil suction filter 2...

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Abstract

The invention provides a gear shifting control system for an automatic speed changer. The gear shifting control system comprises a main pump, four gear shifting oil cylinders, a gear shifting control valve, a first gear shifting valve, a second gear shifting valve, a first gear switching valve and a second gear switching valve. The gear shifting control valve is provided with a pressure input opening and two pressure output openings. The first gear shifting valve is provided with two pressure input openings and four pressure output openings. The second gear shifting valve is provided with two pressure input openings and four pressure output openings. The first gear switching valve is connected to the position between the first gear shifting valve and the gear shifting control valve to enable the gear shifting control valve and the first gear shifting valve to be disconnected or communicate. The second gear switching valve is connected to the position between the second gear shifting valve and the gear shifting control valve to enable the gear shifting control valve and the second gear shifting valve to be disconnected or communicate. The four pressure output openings of the first gear shifting valve and the four pressure output openings of the second gear shifting valve are connected with the four gear shifting oil cylinders.

Description

technical field [0001] The invention relates to the technical field of automatic transmissions of automobiles, in particular to a shift control system of automatic transmissions. Background technique [0002] With the advancement of science and technology, the way automobiles realize shifting has gradually evolved from manual shifting to automatic shifting, and automatic shifting is realized through automatic transmissions. Among them, the dual-clutch automatic transmission has been welcomed by the market due to its advantages such as high transmission efficiency. Two clutches are used in the dual-clutch automatic transmission, one of which is used to control odd-numbered gears, and the other is used to control even-numbered gears. , by automatically switching between the two clutches to complete the shift program, so the power shift during the shift process can be realized, that is, the power is not interrupted during the shift process, and the comfort of the vehicle is imp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/40F16H59/02F15B13/06F15B11/08
Inventor 莫凡黄新志刘学武张安伟吴坚
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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