CN201080182Y - Braking controller for light cargo vehicle - Google Patents
Braking controller for light cargo vehicle Download PDFInfo
- Publication number
- CN201080182Y CN201080182Y CNU2007200444046U CN200720044404U CN201080182Y CN 201080182 Y CN201080182 Y CN 201080182Y CN U2007200444046 U CNU2007200444046 U CN U2007200444046U CN 200720044404 U CN200720044404 U CN 200720044404U CN 201080182 Y CN201080182 Y CN 201080182Y
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- China
- Prior art keywords
- valve
- air
- brake
- admission port
- braking
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Hydraulic Control Valves For Brake Systems (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Regulating Braking Force (AREA)
Abstract
The utility model relates to a light truck breaking control device. The utility model solves the problems of reliable breaking of the prior light truck under the empty load and full load conditions, and on various road surfaces. The utility model adopts the structure improvement proposal that a four loop protection valve and an air pressure load-sensing proportioning valve are additionally arranged in the breaking control device, the A air outlet opening and the B air outlet opening of the four air outlet openings of the four loop protection valve are respectively connected with a loop controlling air reservoir after the driving breaking, the C air outlet opening is connected with a clutch booster and an exhaust auxiliary breaking air reservoir 5, and the D air outlet opening is connected with a parking breaking air reservoir 8. The utility model ensures the brake security of the light truck, improves the efficacy of the exhaust auxiliary breaking when the vehicle drives on the mountain road and on the long downhill rides, and improves the security of all the loops of the braking system of the complete vehicle.
Description
Technical field
The utility model relates to the automobile brake control setup, specifically the light truck braking force control system.
Background technology
At present, the front and back wheel brakig force distribution of most of homemade goods carrying vehicle is fixed, and so just can not make full use of the ground-surface adhesion value, and the requirement of out of reach automobile brake perfrmance makes automobile the phenomenon of sideslip, whipping even tune occur.Change this situation, just must make the ratio of front and back wheel braking force be adjusted to the front and back wheel vertical load ratio that equals changing at any time.
Summary of the invention
The purpose of this utility model is: provide a kind of automobile all to have the more light truck braking force control system of failure-free deceleration and stopping performance fully loaded the reaching on the various road surfaces of sky.
Concrete structural design scheme is as follows:
The light truck braking force control system, comprise air compressor 1, unloader valve 2, exhaust ancillary brake valve 4, clutch servo-unit and exhaust auxiliary braking air receiver 5, clutch servo-unit 6, service brake air receiver 7, braking during standstill air receiver 8, spring energy-storage air chamber 10, rapid release valve 11, preceding compressed air brake cylinder 12, hand control valve 13 and brake activation valve 14, it is characterized in that:
Also comprise four-loop protection valve 3 and load sensing valve 9,
The annexation of four air extractor ducts of four-loop protection valve 3 is as follows: the A mouth connects clutch servo-unit and exhaust auxiliary braking air receiver 5 with loop control air receiver after the B mouth is connected service brake respectively, C mouth, and the D mouth connects braking during standstill air receiver 8; Connect the admission port E of load sensing valve 9 and the ante-chamber admission port of brake activation valve 14 more respectively from back loop control air receiver, the ante-chamber air extractor duct of brake activation valve 14 is connected to the control mouth H of load sensing valve 9, two outlet F of load sensing valve 9 receive the service brake admission port of the braking left and right sides, back spring energy-storage air chamber 10 respectively again; The air extractor duct of front loop control air receiver is connected to the admission port of brake activation valve 14 back cavities, and the air extractor duct of brake activation valve 14 back cavities is connected to preceding rapid release valve 11, preceding compressed air brake cylinder 12 about arriving again; The air extractor duct of clutch servo-unit and exhaust auxiliary braking air receiver 5 is connected respectively to the admission port of exhaust ancillary brake valve 4 and the admission port of clutch servo-unit 6.The air extractor duct of braking during standstill air receiver 8 is connected to the admission port of hand control valve 13, and the air extractor duct of hand control valve 13 is connected to back rapid release valve 11, arrives the Parking admission port of left and right sides rear spring energy storage air chamber 10 again;
Air pressure load sensing valve and four-loop protection valve are matched with on the light truck, mainly need to solve the control angle of load sensing valve under pneumatic circuit layout, the various load and the problems such as connection mode of connecting rod.
1, the selection work of load sensing valve.Utilize whole-car parameters to calculate the ideal brake force of this vehicle under different loads and distribute, braking pressure is selected suitable load sensing valve for use according to rigidity of plate spring again with the relation of load change before and after promptly drawing.
2, load sensing valve assigns a work.At first, the four-loop protection valve that increases in the brake piping system is to strengthen the reliability of brake system.Secondly,, use an air receiver separately, avoid phenomenon with the shared air receiver of service brake for parking system for fully satisfying domestic and international laws and regulations requirement.At last, by on back axle, increasing the control stalk that support connects load sensing valve, reach car load is controlled the back braking pressure with load change purpose.
3, the design effort of pipe link and control stalk.For fully realizing the commonality of connecting rod, control stalk, connecting rod control system to whole load sensing valve in design process increases tunable arrangement, no matter control stalk still is a connecting rod can both be carried out certain adjustment, this just makes in the homologous series vehicle no matter how whole-car parameters changes, and can both be adjusted to a suitable control angle by this covering device.For preventing beating of back axle in vehicle overload or the driving process, also the end at waling stripe is provided with spring to strengthen the universal property of this connecting rod simultaneously.
The utility model is used for light truck; guaranteed the braking safety of light truck; make this kind light truck all have more failure-free deceleration and stopping performance fully loaded the reaching on the various road surfaces of sky; improve the effect of vehicle exhaust auxiliary braking when travelling hill path and lower long slope simultaneously; owing to the application of four-loop protection valve, improved the safety in each loop of car load brake system.For adapting to the requirement of each national various regulations,, further improve the reliability of driving specially for braking during standstill designs an air receiver.
Description of drawings
Fig. 1 is the utility model overall schematic,
Fig. 2 is the load sensing valve scheme drawing,
Fig. 3 is the birds-eye view of Fig. 2,
Fig. 4 is the four-loop protection valve scheme drawing.
Fig. 5 is the connecting rod scheme drawing of load sensing valve,
Fig. 6 is the lateral plan of Fig. 5.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
The light truck braking force control system, comprise air compressor 1, unloader valve 2, exhaust ancillary brake valve 4, clutch servo-unit and exhaust auxiliary braking air receiver 5, clutch servo-unit 6, service brake air receiver 7, braking during standstill air receiver 8, spring energy-storage air chamber 10, rapid release valve 11, preceding compressed air brake cylinder 12, hand control valve 13 and brake activation valve 14, see Fig. 1.
Also comprise four-loop protection valve 3 and load sensing valve 9, see Fig. 2, Fig. 3, Fig. 4 and Fig. 5;
The annexation of four air extractor ducts of four-loop protection valve 3 is as follows: the A mouth is connected service brake air receiver 7 respectively with the B mouth, and the C mouth connects clutch servo-unit and exhaust auxiliary braking air receiver 5, and the D mouth connects braking during standstill air receiver 8; Connect the admission port E of load sensing valve 9 and the ante-chamber admission port of brake activation valve 14 more respectively from back loop control air receiver, the ante-chamber air extractor duct of brake activation valve 14 is connected to the control mouth H of load sensing valve 9, two air extractor duct F of load sensing valve 9 receive the service brake admission port of the braking left and right sides, back spring energy-storage air chamber 10 respectively again; The air extractor duct of front loop control air receiver is connected to the admission port of brake activation valve 14 back cavities, and the air extractor duct of brake activation valve 14 back cavities is connected to preceding rapid release valve 11, preceding compressed air brake cylinder 12 about arriving again; The air extractor duct of clutch servo-unit and exhaust auxiliary braking air receiver 5 is connected respectively to the admission port of exhaust ancillary brake valve 4 and the admission port of clutch servo-unit 6.The air extractor duct of braking during standstill air receiver 8 is connected to the admission port of hand control valve 13, and the air extractor duct of hand control valve 13 is connected to back rapid release valve 11, arrives the Parking admission port of left and right sides rear spring energy storage air chamber 10 again;
In this brake equipment, used air receiver of parking system and service brake are independent, the i.e. height of service brake air receiver internal gas pressure no matter, what emergency brake system can both guarantee to drive a vehicle carries out smoothly, if the shared air receiver of braking during standstill and service brake is that automobile just can't start when air pressure is low excessively.
When chaufeur is stepped on brake pedal, the ante-chamber back cavity of brake activation valve 14 is almost opened simultaneously, the back cavity that gas in the front loop control air receiver passes through brake activation valve 14 arrives preceding rapid release valve 11, and preceding compressed air brake cylinder 12 is implemented the preceding braking of car loads about arriving through rapid release valve 11 at last; Gas in the back loop control air receiver is leaded up to the ante-chamber of brake activation valve 14 and is arrived the control mouth of load sensing valve 9, other one the tunnel arrives the admission port of load sensing valve 9, the ratio that this moment, load sensing valve 9 was adjusted input and output air pressure by the variation of induction control stalk angle makes car load front and back brakig force distribution reasonable, and gas arrives the back braking that left and right sides spring energy-storage air chamber is implemented car load at last by the air extractor duct of load sensing valve.When chaufeur lifted brake pedal, chamber, brake activation valve 14 front and back was closed, and the gas in the preceding air chamber 12 is discharged by rapid release valve 11, and the gas in the rear spring energy storage air chamber 10 is discharged by load sensing valve 9, and the car load braking is removed.
Claims (1)
1. light truck braking force control system, comprise air compressor (1), unloader valve (2), exhaust ancillary brake valve (4), clutch servo-unit and exhaust auxiliary braking air receiver (5), clutch servo-unit (6), service brake air receiver (7), braking during standstill air receiver (8), spring energy-storage air chamber (10), rapid release valve (11), preceding compressed air brake cylinder (12), hand control valve (13) and brake activation valve (14), it is characterized in that:
Also comprise four-loop protection valve (3) and load sensing valve (9),
The annexation of four air extractor ducts of four-loop protection valve (3) is as follows: the A mouth connects clutch servo-unit and exhaust auxiliary braking air receiver (5) with loop control air receiver after the B mouth is connected service brake respectively, C mouth, and the D mouth connects braking during standstill air receiver (8); Connect the admission port E of load sensing valve (9) and the ante-chamber admission port of brake activation valve (14) more respectively from back loop control air receiver, the ante-chamber air extractor duct of brake activation valve (14) is connected to the control mouth H of load sensing valve (9), two outlet F of load sensing valve (9) receive the service brake admission port of back braking left and right sides spring energy-storage air chamber (10) respectively again; The air extractor duct of front loop control air receiver is connected to the admission port of brake activation valve (14) back cavity, and the air extractor duct of brake activation valve (14) back cavity is connected to preceding rapid release valve (11), preceding compressed air brake cylinder (12) about arriving again; The air extractor duct of clutch servo-unit and exhaust auxiliary braking air receiver (5) is connected respectively to the admission port of exhaust ancillary brake valve (4) and the admission port of clutch servo-unit (6).The air extractor duct of braking during standstill air receiver (8) is connected to the admission port of hand control valve (13), and the air extractor duct of hand control valve (13) is connected to back rapid release valve (11), arrives the Parking admission port of left and right sides rear spring energy storage air chamber (10) again;
Load sensing valve (9) is fixed on the chassis side rail of rear-axle casing top by horizontal stand, by vertical links (15) control stalk (16) is connected with waling stripe (17) again, the X point of waling stripe (17) connects back axle, the Y point of vertical links (15) connects the Z point of control stalk (16), and waling stripe (17) is connected at the O point with vertical links (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200444046U CN201080182Y (en) | 2007-09-30 | 2007-09-30 | Braking controller for light cargo vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200444046U CN201080182Y (en) | 2007-09-30 | 2007-09-30 | Braking controller for light cargo vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201080182Y true CN201080182Y (en) | 2008-07-02 |
Family
ID=39613862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200444046U Expired - Lifetime CN201080182Y (en) | 2007-09-30 | 2007-09-30 | Braking controller for light cargo vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201080182Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963763A (en) * | 2014-05-19 | 2014-08-06 | 苏州市金翔钛设备有限公司 | Emergency and parking braking device of loader |
| CN113022523A (en) * | 2021-03-30 | 2021-06-25 | 安徽江淮汽车集团股份有限公司 | Air braking system and automobile pneumatic system |
-
2007
- 2007-09-30 CN CNU2007200444046U patent/CN201080182Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103963763A (en) * | 2014-05-19 | 2014-08-06 | 苏州市金翔钛设备有限公司 | Emergency and parking braking device of loader |
| CN113022523A (en) * | 2021-03-30 | 2021-06-25 | 安徽江淮汽车集团股份有限公司 | Air braking system and automobile pneumatic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080702 |
|
| CX01 | Expiry of patent term |