CN111267817B - Air pressure braking system for service braking failure protection - Google Patents
Air pressure braking system for service braking failure protection Download PDFInfo
- Publication number
- CN111267817B CN111267817B CN202010109413.9A CN202010109413A CN111267817B CN 111267817 B CN111267817 B CN 111267817B CN 202010109413 A CN202010109413 A CN 202010109413A CN 111267817 B CN111267817 B CN 111267817B
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- valve
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- parking
- air
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/04—Driver's valves
- B60T15/041—Driver's valves controlling auxiliary pressure brakes, e.g. parking or emergency brakes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/04—Driver's valves
- B60T15/12—Driver's valves combined with relay valves or the like
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a pneumatic braking system for service braking failure protection, which adopts a double-loop service braking system, wherein a front axle and a rear axle respectively use a loop and simultaneously comprise a parking braking loop, and each loop is provided with an independent air reservoir; there are three shuttle valves and two spill valves in the system, and when the service brake system fails, the parking brake chamber can provide high pressure air to the service brake chamber to apply the service brake. The system is used for failure protection of service braking and improves the running safety of the vehicle.
Description
Technical Field
The present disclosure relates to pneumatic brake systems, and particularly to a pneumatic brake system for fail safe of service brakes.
Background
Braking systems are one of the important systems for vehicle driving safety, and braking failure increases the risk of vehicle driving. At present, the parking brake system and the service brake system are mutually independent, and the parking brake system is in a non-working state when the service brake works. When the service brake system fails, the parking brake system cannot provide an air source for the service brake system. If the parking brake system can provide high-pressure gas for the brake air chamber of the service brake system under the condition of failure of the running brake, the safety of the vehicle brake can be obviously improved, and the running risk of the vehicle is reduced.
Disclosure of Invention
The invention aims to ensure that the parking brake system can provide an air source for a service brake system loop when the service brake system fails, so as to further improve the braking safety of the air pressure brake system. The invention provides a pneumatic braking system for service braking failure protection.
The invention comprises three air cylinders, a foot brake valve, a hand brake valve, three shuttle valves, a differential relay valve, three foot relay valves, two overflow valves, four ABS valves and six brake air chambers. The two outlets of the foot brake valve are respectively connected with the control ports of foot relay valves of the two service brake loops, meanwhile, the two outlets of the foot brake valve are simultaneously communicated with the two air inlets of the shuttle valve, and the outlet of the shuttle valve is connected with one control port of the differential type relay valve. A foot relay valve, two overflow valves and two shuttle valves are additionally arranged between the parking brake air cylinder and the service brake system, and the additionally arranged system can realize that high-pressure gas of the parking brake system can enter the service brake air chamber when the service brake system fails, so that service brake is implemented.
The invention has the beneficial effects that:
1. When one of the two loops of the service brake system fails, after a driver steps on the foot brake valve, the outlet of the shuttle valve still generates high air pressure, so that the differential relay valve is controlled; at this time, the differential relay valve communicates the parking air chamber with the parking air chamber, so that the parking function is disabled.
2. When one of the two loops of the service brake system fails, after a driver steps on the foot brake valve, high-pressure gas of the parking brake system can enter a service brake air chamber corresponding to the service brake failure loop, so that service brake is implemented.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Wherein: 1-foot brake valve; 2-hand brake valve; 3-a first foot relay valve; 31-a second foot relay valve; 32-a third foot relay valve; 4-a first air reservoir; 41-a second air reservoir; 42-a third air reservoir; 5-a first parking and service combination brake chamber; 51-a second parking and service combination brake chamber; 52-a third parking and service combination brake chamber; 53-fourth parking and service combination brake chamber; 6-a first service brake chamber; 61-a second service brake chamber; 7-a first shuttle valve; 71-a second shuttle valve; 72-a third shuttle valve; 8-a first ABS valve; 81-a second ABS valve; 82-a third ABS valve; 83-a fourth ABS valve; 9-a first overflow valve; 91-a second overflow valve; 10-differential relay valve.
Detailed Description
Referring to fig. 1, the present invention includes a service brake valve 1, a hand brake valve 2, a first service relay valve 3, a second service relay valve 31, a third service relay valve 32, a first air reservoir 4, a second air reservoir 41, a third air reservoir 42, a first combined parking and service brake chamber 5, a second combined parking and service brake chamber 51, a third combined parking and service brake chamber 52, a fourth combined parking and service brake chamber 53, a first service brake chamber 6, a second service brake chamber 61, a first shuttle valve 7, a second shuttle valve 71, a third shuttle valve 72, a first ABS valve 8, a second ABS valve 81, a third ABS valve 82, a fourth ABS valve 83, a first overflow valve 9, a second overflow valve 91, and a differential relay valve 10.
The first air cylinder 4 provides a braking air source for a service brake air chamber of the first parking air chamber 5, the first service brake air chamber 6, the fourth parking air chamber 53 and the second service brake air chamber 61, and the loop is a service brake first loop; the third air reservoir 42 provides a brake air source for the service brake air chambers of the second parking air chamber 51 and the third parking air chamber 52, and the loop is a service brake second loop; the second air reservoir 41 provides an air source for the first parking and driving combined brake chamber 5, the second parking and driving combined brake chamber 51, the third parking and driving combined brake chamber 52, the fourth parking and driving combined brake chamber 53, and the loop is a parking brake loop; a first shuttle valve 7, a first overflow valve 9, a second shuttle valve 71, a second overflow valve 91 and a second foot relay valve 31 are additionally arranged between the second air storage cylinder 41 and the service brake system so as to ensure that a certain loop of the service is invalid, and the second air storage cylinder 41 can provide an air source for an air chamber of the invalid service brake loop. The air outlet A1 of the foot brake valve 1 is communicated with the K port of the first foot relay valve 3 and is simultaneously communicated with the P1 port of the third shuttle valve 72; the air outlet A2 of the foot brake valve 1 is communicated with the K port of the third foot relay valve 32 and is simultaneously communicated with the P2 port of the third shuttle valve 72; the a port of the third shuttle valve 72 communicates with the K2 port of the differential relay valve 10, and simultaneously communicates with the K port of the second footrelay valve (31). The P port of the second foot relay valve (31) is communicated with the second air storage cylinder (41), and the A port of the second foot relay valve (31) is respectively connected with oil inlets of the first overflow valve (9) and the second overflow valve (91); the port P1, the port P2 and the port A of the first shuttle valve (7) are respectively communicated with the port A of the first foot relay valve (3), the outlet of the first overflow valve (9) and the inlet of the first ABS valve (8); the P2 port, the P1 port and the A port of the second shuttle valve (71) are respectively communicated with the A port of the third foot relay valve (32), the outlet of the second overflow valve (91) and the inlet of the second ABS valve (81);
The braking system refers to a pneumatic braking system for service braking failure protection.
Referring to fig. 1, the working process of the present invention is as follows:
1. Normal service brake
Releasing the hand brake valve 2, wherein the P port and the A port of the hand brake valve 2 are communicated, high-pressure gas of the second air reservoir 41 enters the K1 port of the differential relay valve 10 through the hand brake valve, the P port and the A port of the differential relay valve 10 are communicated under the high-pressure action of the K1 port of the differential relay valve 10, and the high-pressure gas of the second air reservoir 41 enters the parking air chamber cavities of the first parking and driving combined brake air chamber 5, the second parking and driving combined brake air chamber 51, the third parking and driving combined brake air chamber 52 and the fourth parking and driving combined brake air chamber 53 through the differential relay valve 10, so that the parking brake is released.
After the foot brake valve 1 is stepped on, the P1 port and the A1 port of the foot brake valve 1 are communicated, the P2 port is communicated with the A2 port, and at the moment, high-pressure gas of the first air reservoir 4 and the third air reservoir 42 respectively enters the K port of the first foot relay valve 3 and the K port of the third foot relay valve 32 through the foot brake valve 1; the P port of the first footrelay valve 3 communicates with the a port, and the P port of the third footrelay valve 32 communicates with the a port. The high-pressure gas of the first air reservoir 4 reaches the P1 port of the first shuttle valve 7 through the first foot relay valve 3, and the P1 port and the A port of the first shuttle valve 7 are communicated under the action of high pressure; the high-pressure gas enters the first parking and driving combined brake air chamber 5 and the first driving brake air chamber 6 through the first shuttle valve 7 and the first ABS valve 8; meanwhile, after passing through the first shuttle valve 7, the high-pressure gas also passes through the fourth ABS valve 83 to enter the fourth parking and service combined brake chamber 53 and the second service brake chamber 61. Similarly, the high-pressure gas of the third air storage cylinder 42 reaches the P2 port of the second shuttle valve 71 through the third foot relay valve 32, under the action of high pressure, the P2 port and the A port of the second shuttle valve 71 are communicated, and the high-pressure gas passes through the second shuttle valve 71, passes through the second ABS valve 81 and enters the second parking and driving combined brake air chamber 51; meanwhile, the high-pressure gas passes through the second shuttle valve 71 and then passes through the third ABS valve 82 to enter the third parking and driving combination brake chamber 52. At this time, all the service brake chambers can be filled with high-pressure gas, so that service brakes can be implemented.
2. Normal parking brake
Releasing the hand brake valve 2, wherein the port P and the port A of the hand brake valve 2 are disconnected, the port A is communicated with the port T, the gas of the port K1 of the differential type relay valve 10 is discharged through the hand brake valve 2, the port P and the port A of the differential type relay valve 10 are disconnected, the port A of the differential type relay valve 10 is simultaneously communicated with the atmosphere, and the gas of the parking air chamber cavities of the first parking and driving combined type brake air chamber 5, the second parking and driving combined type brake air chamber 51, the third parking and driving combined type brake air chamber 52 and the fourth parking and driving combined type brake air chamber 53 is discharged through the differential type relay valve 10, so that parking braking is implemented.
3. Failure of a certain circuit of a service brake system
Releasing the hand brake valve 2, wherein the P port and the A port of the hand brake valve 2 are communicated, high-pressure gas of the second air reservoir 41 enters the K1 port of the differential relay valve 10 through the hand brake valve, the P port and the A port of the differential relay valve 10 are communicated under the high-pressure action of the K1 port of the differential relay valve 10, and the high-pressure gas of the second air reservoir 41 enters the parking air chamber cavities of the first parking and driving combined brake air chamber 5, the second parking and driving combined brake air chamber 51, the third parking and driving combined brake air chamber 52 and the fourth parking and driving combined brake air chamber 53 through the differential relay valve 10, so that the parking brake is released.
When the service brake circuit where the first air reservoir 4 is located fails, no matter whether the foot brake valve 1 is stepped on or not, the port A1 of the foot brake valve 1 is always at low pressure, the port P and the port A of the first foot relay valve 3 are disconnected, and the port P1 of the first shuttle valve 7 is in a low pressure state. When the foot brake valve 1 is stepped down, the P2 port of the foot brake valve is communicated with the A2 port, and high-pressure gas of the third air reservoir 42 passes through the foot brake valve 1 to reach the K port of the third foot relay valve 32, so that the P port and the A port of the third foot relay valve 32 are communicated; at this time, the high-pressure gas of the third air receiver 42 reaches the P2 port of the second shuttle valve 71 through the third foot relay valve 32, and the high-pressure gas reaches the a port of the second shuttle valve 71 through the second shuttle valve 71 due to the action of the P2 port and the a port check valve of the second shuttle valve 71; the high-pressure gas at the A port of the second shuttle valve 71 enters the service brake chambers of the second parking and service combined brake chamber 51 and the third parking and service combined brake chamber 52 through the second ABS valve 81 and the third ABS valve 82 respectively. The P2 port of the third shuttle valve 72 pushes open the one-way valve to enter the A port under the action of high pressure, so that high pressure is generated at the K port of the second foot relay valve 31, the P port and the A port of the second foot relay valve 31 are communicated, and the high pressure gas of the second gas storage cylinder 41 passes through the second foot relay valve 31 to generate high pressure at the A port of the second foot relay valve 31; when the a-port pressure of the second footrelay valve 31 exceeds the set pressure of the first relief valve 9, high-pressure gas may pass through the first relief valve 9. At this time, the check valves of the port P2 and the port A of the first shuttle valve 7 are opened, and the high-pressure gas reaches the port A of the first shuttle valve 7; the high pressure gas will enter the service brake chamber and the first service brake chamber 6 of the first combined parking and service brake chamber 5 through the first ABS valve 8; at the same time, high pressure air also enters the service brake chamber of the fourth combined parking and service brake chamber 53 and the second service brake chamber 61 through the fourth ABS valve 83, thereby enabling the failure circuit to generate a service brake capability.
Similarly, when the service brake circuit in which the second air receiver 41 is located fails, no matter whether the foot brake valve 1 is depressed, the port A2 of the foot brake valve 1 is always at a low pressure, the ports P and a of the third foot relay valve 32 are disconnected, and the port P2 of the second shuttle valve 7 is at a low pressure. When the foot brake valve 1 is stepped down, the P1 port of the foot brake valve is communicated with the A1 port, and high-pressure gas of the first air reservoir 4 passes through the foot brake valve 1 to reach the K port of the first foot relay valve 3, so that the P port and the A port of the first foot relay valve 3 are communicated; at this time, the high-pressure gas of the first air receiver 4 reaches the P1 port of the first shuttle valve 7 through the first foot relay valve 3, and the high-pressure gas reaches the a port of the first shuttle valve 7 through the first shuttle valve 7 due to the action of the P1 port and the a port check valve of the first shuttle valve 7; the high-pressure gas at the A port of the first shuttle valve 7 enters the service brake air chambers of the first parking and service combined brake air chamber 5 and the fourth parking and service combined brake air chamber 53 through the first ABS valve 8 and the fourth ABS valve 83 respectively. The P1 port of the third shuttle valve 72 pushes open the one-way valve to enter the A port under the action of high pressure, so that high pressure is generated at the K port of the second foot relay valve 31, the P port and the A port of the second foot relay valve 31 are communicated, and the high pressure gas of the second gas storage cylinder 41 passes through the second foot relay valve 31 to generate high pressure at the A port of the second foot relay valve 31; when the a-port pressure of the second footer valve 31 exceeds the set pressure of the second relief valve 91, high-pressure gas passes through the first relief valve 9. At this time, the check valves of the port P1 and the port a of the second shuttle valve 71 are opened, and the high-pressure gas reaches the port a of the second shuttle valve 71; the high pressure gas will enter the service brake chamber of the second combined park and service brake chamber 51 through the second ABS valve 81; at the same time, high pressure gas also enters the service brake chamber of the third combined park and service brake chamber 52 through the third ABS valve 82, thereby enabling the disabled loop to create service brake capability.
On the basis of fig. 1, the first shuttle valve 7, the second shuttle valve 71 and the third shuttle valve 72 may be replaced by two check valves, respectively.
The invention can reduce the braking risk when the vehicle braking fails, improve the braking capability of the vehicle under extreme conditions and improve the braking safety. .
Claims (2)
1. A service brake fail safe air brake system, characterized by: the hydraulic braking system comprises a foot brake valve (1), a hand brake valve (2), a first foot relay valve (3), a second foot relay valve (31), a third foot relay valve (32), a first air storage cylinder (4), a second air storage cylinder (41), a third air storage cylinder (42), a first parking and driving combined brake chamber (5), a second parking and driving combined brake chamber (51), a third parking and driving combined brake chamber (52), a fourth parking and driving combined brake chamber (53), a first driving brake chamber (6), a second driving brake chamber (61), a first shuttle valve (7), a second shuttle valve (71), a third shuttle valve (72), a first ABS valve (8), a second ABS valve (81), a third ABS valve (82), a fourth ABS valve (83), a first overflow valve (9), a second overflow valve (91) and a differential relay valve (10);
The first air storage cylinder (4) provides a braking air source for a first parking and driving combined braking air chamber (5), a first driving braking air chamber (6), a fourth parking and driving combined braking air chamber (53) and a driving braking air chamber of a second driving braking air chamber (61), and the loop is a driving braking first loop; the third air reservoir (42) provides a braking air source for a second parking and driving combined braking air chamber (51) and a driving braking air chamber of a third parking and driving combined braking air chamber (52), and the loop is a driving braking second loop; the second air reservoir (41) provides an air source for a first parking and driving combined braking air chamber (5), a second parking and driving combined braking air chamber (51), a third parking and driving combined braking air chamber (52) and a fourth parking and driving combined braking air chamber (53); the second air storage cylinder (41) can supply air to the first driving brake system through the second foot relay valve (31), the first overflow valve (9) and the first shuttle valve (7), and can supply air to the second driving brake system through the second foot relay valve (31), the second overflow valve (91) and the second shuttle valve (71);
The air outlet A1 of the foot brake valve (1) is communicated with the K port of the first foot relay valve (3) and is simultaneously communicated with the P1 port of the third shuttle valve (72); the air outlet A2 of the foot brake valve (1) is communicated with the K port of the second foot relay valve (31) and is simultaneously communicated with the P2 port of the third shuttle valve (72); an A port of the third shuttle valve (72) is communicated with a K2 port of the differential relay valve (10) and is communicated with a K port of the second foot relay valve (31);
The P port of the second foot relay valve (31) is communicated with the second air storage cylinder (41), and the A port of the second foot relay valve (31) is respectively connected with oil inlets of the first overflow valve (9) and the second overflow valve (91); the port P1, the port P2 and the port A of the first shuttle valve (7) are respectively communicated with the port A of the first foot relay valve (3), the outlet of the first overflow valve (9) and the inlet of the first ABS valve (8); the port P2, the port P1 and the port A of the second shuttle valve (71) are respectively communicated with the port A of the third foot relay valve (32), the outlet of the second overflow valve (91) and the inlet of the second ABS valve (81).
2. A service brake failsafe pneumatic braking system as claimed in claim 1, wherein: the first shuttle valve (7), the second shuttle valve (71) and the third shuttle valve (72) can be replaced by two one-way valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010109413.9A CN111267817B (en) | 2020-02-22 | 2020-02-22 | Air pressure braking system for service braking failure protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010109413.9A CN111267817B (en) | 2020-02-22 | 2020-02-22 | Air pressure braking system for service braking failure protection |
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| Publication Number | Publication Date |
|---|---|
| CN111267817A CN111267817A (en) | 2020-06-12 |
| CN111267817B true CN111267817B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010109413.9A Active CN111267817B (en) | 2020-02-22 | 2020-02-22 | Air pressure braking system for service braking failure protection |
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| CN (1) | CN111267817B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050097690A (en) * | 2004-04-02 | 2005-10-10 | 현대자동차주식회사 | Air brake system for vehicles |
| CN201573636U (en) * | 2009-11-20 | 2010-09-08 | 东风汽车公司 | Air brake system for mine vehicle |
| CN202557520U (en) * | 2012-04-01 | 2012-11-28 | 徐州徐工铁路装备有限公司 | Two-way brake control system of beam transportation vehicle |
| CN103231698A (en) * | 2013-05-11 | 2013-08-07 | 郭玉 | Auxiliary device for parking braking of truck |
| CN103481884A (en) * | 2013-10-12 | 2014-01-01 | 徐州重型机械有限公司 | Engineering vehicle chassis gas path control system and all-terrain crane |
| CN107054332A (en) * | 2017-06-09 | 2017-08-18 | 吉林大学 | A kind of air-pressure electric-control brakes and braking method with fail safe function |
| CN107985284A (en) * | 2017-09-28 | 2018-05-04 | 湖北文理学院 | Off-highway expanded letter car Pneumatic braking system and off-highway expanded letter car |
| CN108263367A (en) * | 2018-01-03 | 2018-07-10 | 瑞立集团瑞安汽车零部件有限公司 | Commercial car electronic parking system |
| CN110023159A (en) * | 2016-09-21 | 2019-07-16 | 克诺尔商用车制动***有限公司 | The air conditioner unit of braking equipment for commercial vehicle and the operation method of air conditioner unit |
| CN110461671A (en) * | 2017-03-21 | 2019-11-15 | 威伯科有限公司 | The electronically controlled braking system of energy and the method for controlling the electronically controlled braking system of energy for the brake value generator using pure electricity |
| CN110494334A (en) * | 2017-03-21 | 2019-11-22 | 威伯科有限公司 | It can electronically controlled braking system and the method for controlling the electronically controlled braking system of energy |
| CN211710808U (en) * | 2020-02-22 | 2020-10-20 | 吉林大学 | Air pressure braking system for service braking failure protection |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008007709A1 (en) * | 2008-02-04 | 2009-08-06 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Brake assembly and vehicle with such a brake assembly |
-
2020
- 2020-02-22 CN CN202010109413.9A patent/CN111267817B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050097690A (en) * | 2004-04-02 | 2005-10-10 | 현대자동차주식회사 | Air brake system for vehicles |
| CN201573636U (en) * | 2009-11-20 | 2010-09-08 | 东风汽车公司 | Air brake system for mine vehicle |
| CN202557520U (en) * | 2012-04-01 | 2012-11-28 | 徐州徐工铁路装备有限公司 | Two-way brake control system of beam transportation vehicle |
| CN103231698A (en) * | 2013-05-11 | 2013-08-07 | 郭玉 | Auxiliary device for parking braking of truck |
| CN103481884A (en) * | 2013-10-12 | 2014-01-01 | 徐州重型机械有限公司 | Engineering vehicle chassis gas path control system and all-terrain crane |
| CN110023159A (en) * | 2016-09-21 | 2019-07-16 | 克诺尔商用车制动***有限公司 | The air conditioner unit of braking equipment for commercial vehicle and the operation method of air conditioner unit |
| CN110461671A (en) * | 2017-03-21 | 2019-11-15 | 威伯科有限公司 | The electronically controlled braking system of energy and the method for controlling the electronically controlled braking system of energy for the brake value generator using pure electricity |
| CN110494334A (en) * | 2017-03-21 | 2019-11-22 | 威伯科有限公司 | It can electronically controlled braking system and the method for controlling the electronically controlled braking system of energy |
| CN107054332A (en) * | 2017-06-09 | 2017-08-18 | 吉林大学 | A kind of air-pressure electric-control brakes and braking method with fail safe function |
| CN107985284A (en) * | 2017-09-28 | 2018-05-04 | 湖北文理学院 | Off-highway expanded letter car Pneumatic braking system and off-highway expanded letter car |
| CN108263367A (en) * | 2018-01-03 | 2018-07-10 | 瑞立集团瑞安汽车零部件有限公司 | Commercial car electronic parking system |
| CN211710808U (en) * | 2020-02-22 | 2020-10-20 | 吉林大学 | Air pressure braking system for service braking failure protection |
Non-Patent Citations (2)
| Title |
|---|
| 斯太尔汽车双回路气压制动***气流走向和故障排除;邱贵荣;重型汽车;20061231(第001期);全文 * |
| 轮式装载机双管路制动;余化;工程机械;-;20020310;第-卷(第03期);全文 * |
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| CN111267817A (en) | 2020-06-12 |
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