An electromechanical hydraulically controlled electronically controlled automatic parking mechanism
An automatic parking and electro-hydraulic control technology, which is applied in the direction of transmission control, mechanical equipment, components with teeth, etc., can solve the problem that the parking mechanism needs an external mechanism, so as to improve the operating comfort and safety, The effect of improving reliability
Active Publication Date: 2022-04-19
XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD
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Problems solved by technology
[0003] Aiming at the problem that the electronically controlled automatic parking function in the prior art requires an external mechanism or manual implementation of the parking mechanism, the present invention provides an electromechanical hydraulically controlled electronically controlled automatic parking mechanism, which is simple in structure, easy to operate, and easy to use. Few parts, small space ratio, no external mechanism or manual to realize the parking function, greatly improving the reliability of the parking function
Method used
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Embodiment
[0070] When the electronically controlled automatic parking mechanism of electromechanical hydraulic control in the present invention is in use, according to shown in table 1, be divided into three kinds of states;
[0071]
[0072] Table 1 Logic table of parking usage in electronically controlled automatic parking mechanism
[0073] State 1: Pressure oil is supplied and automatic parking works.
[0074] When there is oil pressure in the pressure oil circuit P, the switch solenoid valve 23 is powered on, that is, the control pressure oil circuit A has oil pressure, and the hydraulic pressure F1 is generated under the action of the area difference of the shift valve 19, and the hydraulic pressure F1 is related to the gear shift The resultant force of the valve return spring 15 jointly overcomes the force required when the parking pawl 11 is shifted, and the shift valve 19 starts from figure 1 The position begins to move, and this resistance is the resistance produced by the...
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The invention provides an electronically controlled automatic parking mechanism controlled by electromechanical hydraulics. The pressure oil is controlled by a solenoid valve to realize the displacement and reversing of the shift valve, thereby changing the angle of the parking pawl. The pressure oil controlled by it and the body transmission Shared, the parking shift mechanism and the parking lock mechanism cooperate with the electro-hydraulic control mechanism to realize the transmission locking function. The ejector rod is in the free state and working state; the parking ejector rod drives the parking lock at different positions of the parking wheels, so that the parking wheels can realize the locking and unlocking functions; when realizing the automatic parking function, only one electromagnetic valve is used for control, greatly The reliability of the parking function is improved, and the invention realizes the automatic parking control of the vehicle, which is used to replace a shift motor or a manual pull-wire shift device, and improves the operation comfort and safety of the transmission parking.
Description
technical field [0001] The invention relates to the technical field of transmission automatic parking, in particular to an electromechanical-hydraulic controlled electronically controlled automatic parking mechanism. Background technique [0002] The parking mechanism is an automobile locking mechanism that realizes an automatic transmission, which can reliably park the automobile in situ and prevent it from sliding under any circumstances. The electronically controlled automatic parking function is a technical application that can realize automatic handbrake when the car is running. This technology allows the driver to avoid braking for a long time when the vehicle is stopped, and can avoid the vehicle when the automatic parking is activated. Unnecessary skidding. With the development of the automobile industry, hybrid automatic transmissions driven by multiple energy sources combined with motors have emerged. This type of transmission no longer achieves the distinction of...
Claims
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IPC IPC(8): F16H63/34F16H61/00
CPCF16H63/3425F16H63/3433F16H63/3483F16H61/0021F16H61/0009
Inventor 朱佳兴王凯峰郝海洋丁斌何亚楠严鉴铂刘义
Owner XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD