CN218367763U - Brake control system for preventing brake force superposition - Google Patents
Brake control system for preventing brake force superposition Download PDFInfo
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- CN218367763U CN218367763U CN202223040520.4U CN202223040520U CN218367763U CN 218367763 U CN218367763 U CN 218367763U CN 202223040520 U CN202223040520 U CN 202223040520U CN 218367763 U CN218367763 U CN 218367763U
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Abstract
The utility model provides a prevent superimposed braking control system of braking force relates to vehicle braking technical field, include: the brake system comprises a service brake air cylinder, a master brake valve, a relay valve, a differential relay valve, an ABS (anti-lock brake system) electromagnetic valve group, a brake air chamber group, a parking brake air cylinder, a pressure reducing valve and a hand brake valve; the output end of the main brake valve is respectively communicated with the control port of the relay valve and the control port of the differential relay valve; the air outlet of the relay valve is communicated with the air inlet of the ABS electromagnetic valve bank; the ABS electromagnetic valve group is communicated with the brake air chamber group; the air outlet of the differential relay valve is communicated with the parking air inlet of the brake air chamber group; and an air outlet of the parking brake air cylinder is respectively communicated with an air supply port of the hand brake valve and an air supply port of the differential relay valve through a pressure reducing valve. The brake device can prevent the brake device or related parts from being damaged due to overlarge braking force caused by the superposition of service braking and parking braking, thereby ensuring the safety and reliability of the vehicle.
Description
Technical Field
The utility model relates to a vehicle braking technical field especially relates to a prevent superimposed brake control system of braking force.
Background
In the automobile braking process, the condition that the driving brake and the parking brake are superposed exists, so that the braking force of the automobile is too large, the brake device or related parts are damaged, the maintenance frequency and the maintenance cost are high, and the driving safety of the automobile is seriously influenced, so that the improvement design is carried out on the existing braking system, the stability and the effectiveness of the braking can be ensured, and meanwhile, the damage caused by the superposition of the braking force can be effectively overcome.
In order to prevent simultaneous action of service braking and parking braking in the prior art, the internal structure of the spring brake chamber is mainly changed, so that the internal structure of the brake chamber becomes complicated, and the assembly difficulty of the brake chamber is increased. The aim of preventing the superposition of braking force is fulfilled by attaching a braking pipeline with a two-way check valve outside a spring braking air chamber, and the pipeline has the defects that the pipeline connection is complicated and the failure probability of a braking system is increased due to the fact that the valve is additionally arranged in the braking pipeline.
SUMMERY OF THE UTILITY MODEL
In order to overcome not enough among the above-mentioned prior art, the utility model provides a prevent superimposed braking control system of braking force, when the system can possess and prevent the superimposed function of braking force, it is more simple and convenient to make the brake piping connection, and braking system disposes more economically, and failure mode still less.
The brake control system for preventing superposition of braking force includes: the brake system comprises a service brake air cylinder, a master brake valve, a relay valve, a differential relay valve, an ABS (anti-lock brake system) electromagnetic valve group, a brake air chamber group, a parking brake air cylinder, a pressure reducing valve and a hand brake valve;
the air supply end of the service brake air cylinder is connected with the input end of a main brake valve, and the output end of the main brake valve is respectively communicated with the control port of the relay valve and the control port of the differential relay valve;
the air outlet of the relay valve is communicated with the air inlet of the ABS electromagnetic valve group; an air outlet of the ABS electromagnetic valve bank is communicated with a driving air inlet of the brake air chamber bank;
the air outlet of the differential relay valve is communicated with the parking air inlet of the brake air chamber group;
and an air outlet of the parking brake air cylinder is respectively communicated with an air supply port of the hand brake valve and an air supply port of the differential relay valve through a pressure reducing valve.
It is further noted that the ABS solenoid valve group includes four ABS solenoid valves;
the air inlet of each ABS electromagnetic valve is respectively communicated with the air outlet of the relay valve;
and the air outlet of each ABS electromagnetic valve is respectively communicated with the air inlet of the brake air chamber group.
It is further noted that the brake air chamber group comprises four brake air chambers;
the brake chambers and the ABS electromagnetic valves are used in a one-to-one matching mode, and the air outlets of the ABS electromagnetic valves are communicated with the air inlets of the brake chambers.
It is further noted that the air outlet of the differential relay valve is respectively communicated with the parking air inlet of each brake air chamber.
It is further noted that the air outlet of the hand brake valve is communicated with the control port of the differential relay valve.
It is further noted that the air inlet of the relay valve is in communication with the service brake air reservoir.
According to the technical scheme, the utility model has the advantages of it is following:
the utility model provides a braking control system can prevent that service braking and parking braking from producing the stack and making vehicle brake force too big, arouses arresting gear or relevant part to damage to guarantee vehicle safe and reliable.
The utility model provides a braking control system need not change spring brake chamber inner structure, has reduced brake chamber inner structure's complexity. The utility model discloses need not attach the brake piping of taking the bi-pass check valve outside spring brake chamber, and then also need not increase the valve in the brake piping, make the tube coupling become simple.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a brake control system that prevents superposition of braking force.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
The utility model provides a prevent superimposed braking control system of braking force, as shown in figure 1, include: the brake system comprises a service brake air cylinder 1, a master brake valve 2, a relay valve 3, a differential relay valve 4, an ABS (anti-lock brake system) electromagnetic valve group, a brake air chamber group, a parking brake air cylinder 7, a pressure reducing valve 8 and a hand brake valve 9;
the air supply end of the service brake air cylinder 1 is connected with the input end of a main brake valve 2, and the output end of the main brake valve 2 is respectively communicated with a control port of a relay valve 3 and a control port of a differential relay valve 4; the air outlet of the relay valve 3 is communicated with the air inlet of the ABS electromagnetic valve group; an air outlet of the ABS electromagnetic valve group is communicated with an air inlet of the brake air chamber group; the air outlet of the differential relay valve 4 is communicated with the parking air inlet of the brake air chamber group; an air outlet of the parking brake air cylinder 7 is respectively communicated with an air supply port of a hand brake valve 9 and an air supply port of the differential relay valve 4 through a pressure reducing valve 8. The air outlet of the hand brake valve 9 is communicated with the control port of the differential relay valve 4. The air inlet of the relay valve 3 is communicated with the air inlet of the service braking air cylinder 1.
In the utility model, the ABS electromagnetic valve group comprises four ABS electromagnetic valves 5; the air inlet of each ABS electromagnetic valve is respectively communicated with the air outlet of the relay valve 3; and the air outlet of each ABS electromagnetic valve is respectively communicated with the air inlet of the brake air chamber group.
For a brake chamber group, it includes four brake chambers 6; the brake chambers 6 are used in a one-to-one matching mode with the ABS electromagnetic valves 5, and air outlets of the ABS electromagnetic valves are communicated with air inlets of the brake chambers 6. The air outlet of the differential relay valve 4 is respectively communicated with the parking air inlet of each brake air chamber 6.
The four brake chambers can be respectively braked by service brake control and parking brake control, and the two controls are independent. And the service brake control carries out brake control on the brake air chamber through the main brake valve and the relay valve. And the parking brake control controls the differential relay valve to brake the brake air chamber through the manual brake valve. The outlet pressure of the differential relay valve increases as the control pressure increases.
The utility model discloses an execution process does: when the service brake is performed, the compressed air from the service brake air cylinder 1 supplies air to the master cylinder 2 and the relay valve 3, and when the driver steps on the brake pedal, the compressed air is split into two branches through the air outlet of the master cylinder 2, one branch flows to the control port of the relay valve 3, and the other branch flows to the control port 42 of the differential relay valve 4. The former flows to the air inlet of the ABS electromagnetic valve 5 through the air outlet of the relay valve 3, and then flows to the air inlet 11 of the brake air chamber 6, and the brake air chamber 6 is controlled to brake.
The outlet of the differential relay valve 4 flows to the inlet 12 of the brake chamber 6, and accordingly, part of the parking brake can be released, and the superposition of the service brake and the parking brake can be prevented.
Compressed air from the parking brake air cylinder 7 is decompressed by the decompression valve 8, and then supplied to the manual brake valve 9 and the differential relay valve 4, respectively. When a driver pulls up a control handle of the hand brake valve 9, one path of compressed air flows to a control port of the differential relay valve 4 through an air outlet of the hand brake valve 9; the other path of compressed air flows to an air inlet 12 of a brake air chamber 6 through an air outlet of the differential relay valve 4, and parking braking is released.
When the driver pulls down the control handle of the hand brake valve 9, the compressed air in the pipe between the air outlet of the hand brake valve 9 and the control port of the differential relay valve 4 is discharged through the air outlet of the hand brake valve 9, and the compressed air between the differential relay valve 4 and the brake air chamber is discharged through the air outlet of the differential relay valve 4, so that the parking brake is performed.
The utility model provides a braking control system can prevent that service braking and parking braking from producing the stack and making vehicle brake force too big, arouses arresting gear or relevant part to damage to guarantee vehicle safe and reliable. Furthermore the utility model discloses all interface specifications of differential relay valve are the same with current scheme interface, have the installation simple, dismantle convenient, efficient, characteristics with low costs.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A brake control system that prevents superposition of braking force, characterized by comprising: the brake system comprises a service brake air cylinder (1), a master brake valve (2), a relay valve (3), a differential relay valve (4), an ABS (anti-lock brake system) electromagnetic valve set, a brake air chamber set, a parking brake air cylinder (7), a pressure reducing valve (8) and a hand brake valve (9);
the air supply end of the service braking air cylinder (1) is connected with the input end of the master braking valve (2), and the output end of the master braking valve (2) is respectively communicated with the control port of the relay valve (3) and the control port of the differential relay valve (4);
the air outlet of the relay valve (3) is communicated with the air inlet of the ABS electromagnetic valve bank; an air outlet of the ABS electromagnetic valve group is communicated with an air inlet of the brake air chamber group;
an air outlet of the differential relay valve (4) is communicated with a parking air inlet of the brake air chamber group;
an air outlet of the parking brake air cylinder (7) is respectively communicated with an air supply port of the hand brake valve (9) and an air supply port of the differential relay valve (4) through a pressure reducing valve (8).
2. The brake control system for preventing superposition of braking force according to claim 1,
the ABS electromagnetic valve group comprises four ABS electromagnetic valves (5);
the air inlet of each ABS electromagnetic valve is respectively communicated with the air outlet of the relay valve (3);
and the air outlet of each ABS electromagnetic valve is respectively communicated with the air inlet of the brake air chamber group.
3. The brake control system for preventing superposition of braking force according to claim 2,
the brake air chamber group comprises four brake air chambers (6);
the brake air chambers (6) and the ABS electromagnetic valves (5) are used in a one-to-one matching way,
an air outlet of the ABS electromagnetic valve is communicated with an air inlet of the brake air chamber (6).
4. The brake control system for preventing superposition of braking force according to claim 3,
the air outlet of the differential relay valve (4) is respectively communicated with the parking air inlet of each brake air chamber (6).
5. The brake control system for preventing superposition of braking force according to claim 1,
the air outlet of the hand brake valve (9) is communicated with the control port of the differential relay valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223040520.4U CN218367763U (en) | 2022-11-15 | 2022-11-15 | Brake control system for preventing brake force superposition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223040520.4U CN218367763U (en) | 2022-11-15 | 2022-11-15 | Brake control system for preventing brake force superposition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218367763U true CN218367763U (en) | 2023-01-24 |
Family
ID=84939118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223040520.4U Active CN218367763U (en) | 2022-11-15 | 2022-11-15 | Brake control system for preventing brake force superposition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218367763U (en) |
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2022
- 2022-11-15 CN CN202223040520.4U patent/CN218367763U/en active Active
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