AMT gear selecting and shifting hydraulic executing system with pressure limiting positioning function
An executive system, gear shifting technology, applied to components with teeth, belts/chains/gears, mechanical equipment, etc., can solve problems that affect the control accuracy of hydraulic actuators, many hydraulic control components, and complex structures
Active Publication Date: 2017-05-31
山东海卓电液控制工程技术研究院
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Problems solved by technology
However, the integration and control of multiple groups of hydraulic cylinders make the structure more complex, and the system requires more hydraulic control components, which affects the control accuracy of the hydraulic actuator to a certain extent.
Method used
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[0029] Below in conjunction with accompanying drawing and embodiment, further elaborate the present invention. In the following detailed description, certain exemplary embodiments of the invention are described by way of illustration only. Needless to say, those skilled in the art would realize that the described embodiments can be modified in various different ways, all without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
[0030] Such as figure 1 As shown, an AMT gear selection and shifting hydraulic actuator system with pressure limiting and positioning function includes a valve body 1 on which a gear selection mechanism and a gear shifting mechanism are integrated, and the gear selection mechanism and the gear shifting mechanism The mechanisms are arranged orthogonally to each other, the gear selection mechanism is connected with a gear...
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The invention discloses an AMT gear selecting and shifting hydraulic executing system with a pressure limiting positioning function. The AMT gear selecting and shifting hydraulic executing system comprises a valve body. A gear selecting mechanism and a gear shifting mechanism are integrated on the valve body. The gear selecting mechanism comprises a gear selecting piston hole formed in the valve body. A gear selecting piston rod is installed in the gear selecting piston hole. The positioning end of the gear selecting piston rod is sequentially connected with a gear selecting positioning device and a gear selecting centering device. The gear shifting mechanism comprises a gear shifting piston hole formed in the valve body. A gear shifting piston rod is installed in the gear shifting piston hole. The positioning end of the gear shifting piston rod is connected with a gear shifting positioning device. The gear selecting mechanism and the gear shifting mechanism which are arranged in a mutually orthogonal manner are used for completing the gear selecting and shifting work of multiple gears, the gear selecting positioning device is used for positioning the position of the gear selecting piston rod, the gear shifting positioning device and a second position sensor are used for conducting positioning and centering detection on the gear shifting piston rod, the gear shifting action is more smooth, the gear shifting action impacts are reduced, and meanwhile the AMT gear selecting and shifting hydraulic executing system has the beneficial effects that the structure is simple, control is easy, the gear shifting control precision is high, and work is reliable.
Description
technical field [0001] The invention relates to the technical field of automobile transmissions, in particular to an AMT gear selection and shift hydraulic execution system with the function of pressure limiting and positioning. Background technique [0002] The selection and shift execution system is the main device for automatic transmission to realize automatic shift work. For the shift hydraulic execution system, it has the characteristics of large energy capacity, easy control, and reliable operation. It has broad application prospects in the field of automatic transmissions. Most AMT gear shift hydraulic execution systems use multiple groups of hydraulic cylinders to control each gear shift fork shaft respectively to realize gear shift control, which saves the gear selection action. However, the integration and control of multiple groups of hydraulic cylinders make the structure more complex, and the system requires more hydraulic control components, which affects the ...
Claims
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IPC IPC(8): F16H59/10F16H61/02F16H61/22F16H63/30
CPCF16H59/105F16H61/0009F16H61/0204F16H61/22F16H63/30F16H2063/3083
Inventor 李瑞川徐继康刘成良李剑峰张增明
Owner 山东海卓电液控制工程技术研究院