Regenerative braking hydraulic valve and braking method thereof
A technology of regenerative braking and hydraulic valves, which is applied in the field of hydraulic valves, can solve the problems of not being able to meet the transformation requirements and reduce the pipeline pressure, and achieve the effects of good braking experience, low pipeline pressure and good braking performance
Active Publication Date: 2018-09-04
HAIMA AUTOMOBILE CO LTD +2
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Problems solved by technology
However, with this structure, the pipeline pressure cannot be greatly reduced under the condition that the stroke of the brake pedal remains unchanged, and no working space can be left for the motor brake. Therefore, this structure cannot meet the requirements of the regenerative braking system for the original traditional hydraulic braking system. Retrofit requirements
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[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0031] Such as figure 1 Shown is a specific embodiment of the regenerative braking hydraulic valve of the present invention. In this embodiment, the regenerative braking hydraulic valve includes:
[0032] A valve body 1, a valve cavity 1.3 is provided in the valve body 1, an inlet 1.1 and an outlet 1.2 are provided on the valve body 1, and the inlet 1.1 and the outlet 1.2 communicate with the valve cavity 1.3 respectively;
[0033] The main spool 2 is located in the valve cavity 1.3, and the main spool 2 moves in the valve cavity 1.3 to connect or close the inlet 1.1 and / or the outlet 1.2 during braking;
[0034] An adjustment assembly 3 including a pressure adjustment nut 3.1 and a stroke adjustment screw 3.2, the pressure adjustment nut 3.1 and the stroke adjustment screw 3.2 are located at the end of the valve cavity 1.3 away from the inl...
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The invention discloses a regenerative brake hydraulic valve and a brake method thereof. The regenerative brake hydraulic valve comprises a valve body, a main valve element, an adjusting assembly and a first elastic piece. A valve cavity is formed in the valve body. The valve body is provided with an inlet and an outlet which communicate with the valve cavity. The main valve element is arranged in the valve cavity. The main valve element moves in the valve cavity in the braking process so as to open or close the inlet and / or the outlet. The adjusting assembly is arranged at the end, away from the inlet, of the valve cavity to limit the movement stroke of the valve element in the valve cavity and is connected with the main valve element to assist in communication of the inlet and the outlet. One end of the first elastic piece abuts against the main valve element, the other end of the first elastic piece abuts against the adjusting assembly, and the main valve element is reset after braking is finished. By means of the regenerative brake hydraulic valve, the pipe pressure can be lowered greatly under the condition that the stroke of a brake pedal is not changed, and superposed brake force is lowered, so that the brake performance and brake feeling are better.
Description
technical field [0001] The invention relates to a hydraulic valve, in particular to a regenerative braking hydraulic valve and a braking method thereof. Background technique [0002] In the research of braking feedback, there is a way to continue to use the original traditional vehicle model and adopt a vacuum booster system to directly add the motor braking force and hydraulic braking force to the drive shaft, resulting in a sudden change in the original braking force. Such as Figure 4 As shown, since the latter braking force interferes with the original motor braking force (if there is ABS, it will also affect the ABS), the total braking force changes after the two braking forces are superimposed, and the change of the braking force directly leads to the braking force. The dynamic torque changes, which ultimately affects the braking performance of the vehicle and the driver's braking feeling when braking the vehicle. And when the required braking force is less than the m...
Claims
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IPC IPC(8): B60T11/34B60T11/28
Inventor 闫伟阳
Owner HAIMA AUTOMOBILE CO LTD