An electro-hydraulic control multi-channel shift valve group with oil circuit error-proof redundant design
An electro-hydraulic control, electromagnetic reversing valve technology, applied in transmission control, mechanical equipment, components with teeth, etc., can solve complex problems, requiring frequent shifting, ramping, reducing transmission life and driving safety. It has the advantages of simple and compact structure, low manufacturing cost, and safe and reliable work.
Active Publication Date: 2022-07-22
JIANGLU MACHINERY & ELECTRONICS GROUP
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Problems solved by technology
[0002] The driving process of the vehicle is a dynamic process. Road conditions, loads, vehicle conditions, etc. will cause changes in the output torque and speed of the engine. The operating environment is complex, and frequent gear changes and slope ups are required. The transmission is an important part of the vehicle and often operates in Starting, shifting, braking, torque converter lock-up, clutch unlocking and other transitional conditions; the shift control valve is the core component of the transmission. By controlling the flow direction of the oil, the oil pressure of the main oil circuit controls different clutches or brakes. Locking, so as to achieve different gears; most of the shift control valves now use shift valves in parallel, which can switch between any gears, and it is easy to cause jump gears. Reduce transmission life and driving safety and other issues
Method used
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Embodiment 1
[0020] like Figure 1-5 As shown, the main structure of the present invention is a multi-way shift valve group composed of two two-position three-way electromagnetic reversing valves and two two-position ten-way hydraulic control reversing valves, wherein the two-position three-way electromagnetic reversing valve outlet oil When the solenoid valve is not energized, the main oil pressure enters the hydraulic shift valve through the solenoid valve and acts on the hydraulic control valve to keep the clutch / brake unlocked. state, when the solenoid valve is energized, the main oil pressure no longer acts as the hydraulic control reversing valve as the hydraulic control oil circuit, so that the clutch / brake remains locked, and the gear shift is realized by controlling the clutch / brake to unlock; The oil circuit 1, oil circuit 2, oil circuit 3, oil circuit 4, and oil circuit 5 between the hydraulic shift valves have anti-skip gear and when the solenoid valve fails and power off, it h...
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The invention discloses an electro-hydraulic control multi-channel shift valve group with an oil circuit error-proof redundancy design, which is used in a transmission shift valve hydraulic system, and relates to the technical field of transmission shift control; The three-way electromagnetic reversing valve and two two-position ten-way hydraulic control reversing valves are composed. The brake is unlocked to realize shifting. The electro-hydraulic control shift valve group has the function of maintaining the hydraulic pressure of the original gear after the solenoid valve is de-energized. At the same time, this hydraulic maintaining function requires two tenths in the adjacent electro-hydraulic control shift valve. The hydraulic control reversing valve can only be released when it is moved to the lower position, and it has the interlocking effect of the adjacent electro-hydraulic control shifting valves; the oil circuits entering the clutches / brakes controlled by each electro-hydraulic control shifting valve are arranged in a series structure, with anti-skip gears Therefore, it can improve transmission life, reliability and driving safety.
Description
technical field [0001] An electro-hydraulic control multi-channel shift valve group with oil circuit error-proof redundancy design is used in a transmission shift valve hydraulic system, and the invention relates to the technical field of transmission shift control. Background technique [0002] The driving process of the vehicle is a dynamic process. Road conditions, load, and vehicle conditions will cause changes in the output torque and speed of the engine. The operating environment is complex and requires frequent shifting and hill-starting. The transmission is an important part of the vehicle and often operates in Starting, shifting, braking, torque converter locking, clutch unlocking and other transitional conditions; the shift control valve is the core component of the transmission. Locking, so as to achieve different gears; most shift control valves are connected in parallel with shift valves, which can switch between any gears, and it is easy to skip gears. Reduce ...
Claims
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IPC IPC(8): F16H61/00F16H61/04F16H61/40
CPCF16H61/0009F16H61/04F16H61/40
Inventor 张小鹏米家宝陈建文欧阳湘军杨啟福黄鹏巩招兵卜海荣
Owner JIANGLU MACHINERY & ELECTRONICS GROUP