Adjustment method and adjustment device for brake master valve

By generating the first and second forces in the brake main valve and adjusting the positions of the upper piston and switch seat, the problem that the on-off state of the micro switch is difficult to change first, and the safety of the vehicle is improved.

CN119370074BActive Publication Date: 2025-03-25RUILI GROUP RUIAN AUTO PARTS CO LTD
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Patent Information

Application Number
CN202411975059.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-03-25
Estimated Expiration
2044-12-31

AI Technical Summary

Technical Problem

In the prior art, before the upper piston of the brake main valve contacts and squeezes the upper valve, the on-off state of the micro switch assembly is difficult to be changed first, resulting in a short time for the brake light when the vehicle is braking, which reduces the safety of the vehicle during the braking process.

Method used

By generating a first action force, the upper piston is adjusted to the critical position, and on this basis, a second action force is generated to push the switch seat and the micro switch, so that the on-off state of the micro switch is changed first.

Benefits of technology

Before the upper piston contacts and squeezes the upper valve, the on-off state of the micro switch assembly is first changed, ensuring that the brake light is on for a long time when the vehicle is braking, and improving the safety of the vehicle during the braking process.

✦ Generated by Eureka AI based on patent content.
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Abstract

The present invention relates to the manufacturing process of a brake master valve, and specifically to a regulating method and regulating device for a brake master valve. Before the switch seat of the brake master valve is pushed, a first force is used to push the upper piston of the brake master valve so that the upper piston reaches a critical position; the displacement data of the upper piston pushed by the first force is detected; whether the upper piston reaches the critical position is determined according to the displacement data, so that a gap is formed between the upper piston and the upper valve of the brake master valve; after the upper piston reaches the critical position, a second force is used to push the switch seat of the brake master valve; when the micro switch moves with the switch seat and the on-off state of the micro switch changes, the second force is terminated. When there is a gap between the upper piston and the upper valve body, that is, the upper piston and the upper valve body are not in contact with each other, the on-off state of the micro switch has been switched, so that the ECU of the vehicle first turns on the brake light of the vehicle through the change of the electrical signal generated by the on-off state of the micro switch.
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