CN111942423B - Parking brake control system, control method and vehicle - Google Patents
Parking brake control system, control method and vehicle Download PDFInfo
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- CN111942423B CN111942423B CN202010783677.2A CN202010783677A CN111942423B CN 111942423 B CN111942423 B CN 111942423B CN 202010783677 A CN202010783677 A CN 202010783677A CN 111942423 B CN111942423 B CN 111942423B
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- vehicle
- parking brake
- parking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
- B61H11/10—Aerodynamic brakes with control flaps, e.g. spoilers, attached to the vehicles
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- 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
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- 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
Abstract
The invention belongs to the field of vehicle parking brake control, and provides a parking brake control system, a parking brake control method and a vehicle. The parking brake control system comprises a main air pipe, a brake pipe, a first air passage, a second air passage, a third air passage, a cut-off cock and a parking electromagnetic valve; the cut-off cock and the parking solenoid valve are connected in parallel to form a parallel branch gas circuit, the parallel branch gas circuit is connected in series with a first gas circuit, and the first gas circuit is connected with a main air pipe; the second air path is connected with the brake pipe; the third air path is connected with the parking brake clamp; the third air path can be switched to communicate with the first air path and the second air path so as to realize parking brake control under the condition of normal running of the vehicle or rescue of the vehicle. The device is realized purely by a gas circuit principle, and does not need any electric signal control when the vehicle breaks down and is rescued, so that the usability and the reliability of the parking brake of the vehicle under various working conditions are ensured.
Description
Technical Field
The invention belongs to the field of vehicle parking brake control, and particularly relates to a parking brake control system, a parking brake control method and a vehicle.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
At present, parking brakes are arranged on a railway vehicle and a locomotive, the application and the release of the parking brakes are controlled by an electromagnetic valve, if the electromagnetic valve breaks down, the pneumatic centralized control of the parking brakes can not be rapidly released, and only manual mechanical isolation can be realized. Meanwhile, when the urban rail vehicle is rescued by a locomotive or the same type of urban rail vehicle, the method of isolating all air brakes is adopted at present, the rescued vehicle completely loses the braking force after the air brakes are isolated, the rescued vehicle can only be braked in the rescue process, and the rescued vehicle can not be braked and stopped under the emergency condition or the unhooking condition, so that the running safety of the train is influenced.
In conclusion, the inventor finds that the existing parking brake control system cannot realize rapid release of parking brake after the parking brake solenoid valve fails, cannot perform long-time rescue under the influence of a braking power supply system in the rescue process, cannot control parking brake to stop during normal rescue or unhooking, and reduces train operation safety and rescue efficiency.
Disclosure of Invention
In order to solve the problems, the invention provides a parking brake control system, a parking brake control method and a vehicle, which are controlled by a gas circuit principle without any electric signal when the vehicle breaks down or is rescued, and ensure the availability and reliability of parking brake of the vehicle under various working conditions.
In order to achieve the purpose, the invention adopts the following technical scheme:
a first aspect of the present invention provides a parking brake control system.
A parking brake control system comprises a main air pipe, a brake pipe, a first air path, a second air path, a third air path, a cut-off cock and a parking solenoid valve;
the cut-off cock and the parking solenoid valve are connected in parallel to form a parallel branch gas circuit, the parallel branch gas circuit is connected in series with a first gas circuit, and the first gas circuit is connected with a main air pipe; the second air path is connected with the brake pipe; the third air path is connected with the parking brake clamp; the third air path can be switched to communicate with the first air path and the second air path so as to realize parking brake control under the condition of normal running of the vehicle or rescue of the vehicle.
A second aspect of the present invention provides a control method for a parking brake control system.
A control method of a parking brake control system, comprising:
when the vehicle is normally parked and braked, the first air path and the third air path are communicated, and the connection or disconnection between the first air path and the main air pipe is controlled through the stop cock or the parking electromagnetic valve, so that compressed air in the parking brake clamp is charged or discharged, and the parking brake is relieved or applied;
when the vehicle is rescued and parked for braking, the rescue vehicle is communicated with a main air pipe of the rescued vehicle and brake pipes of the two vehicles through the vehicle coupler, then a second air path and a third air path of the two vehicles are communicated, and the rescued vehicle controls parking and braking of the rescued vehicle.
A third aspect of the invention provides a vehicle.
A vehicle, comprising:
a vehicle controller;
the parking brake control system is connected with the vehicle controller.
Compared with the prior art, the invention has the beneficial effects that:
the invention utilizes the cut-off cock and the parking solenoid valve to be connected in parallel to form a parallel branch gas circuit, then the parallel branch gas circuit is connected in series on the first gas circuit, and the third gas circuit is used for switching and communicating the first gas circuit and the second gas circuit so as to realize parking brake control under the condition of normal operation of a vehicle or rescue of the vehicle, and after the parking solenoid valve breaks down, the gas circuit can still utilize the on-off of the cut-off cock connected in parallel with the parking solenoid valve to realize rapid release of parking brake, thereby ensuring the availability of parking brake in the rescue process and avoiding the hidden trouble of driving with complete loss of brake.
When the vehicle is normally parked and braked, the parking brake control system of the invention communicates the first air path and the third air path, and controls the conduction or the cut-off between the first air path and the main air pipe through the cut-off cock or the parking electromagnetic valve, so that the compressed air in the parking brake clamp is charged or discharged, and the parking brake is relieved or applied; when the vehicle is rescued, the rescue vehicle is communicated with a main air pipe of the rescued vehicle, the brake pipes of the two vehicles are communicated, the second air passages and the third air passages of the two vehicles are communicated, the rescue vehicle controls the parking brake of the rescued vehicle, the parking brake control system is purely built by the air passages, the safety and the reliability are high, the failure rate is low, electric signals are not needed to participate, power supply is not needed, the rescue process is not limited by the power supply of the vehicle, the usability and the reliability of the parking brake of the rail vehicle under various working conditions are guaranteed, and the safety of the train is guaranteed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic structural diagram of a parking brake control system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a parking brake control system according to another embodiment of the present invention.
Detailed Description
The invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only terms of relationships determined for convenience of describing structural relationships of the parts or elements of the present invention, and are not intended to refer to any parts or elements of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the relevant scientific or technical field, and are not to be construed as limiting the present invention.
< parking brake control System >
Referring to FIG. 1, a structural schematic of a parking brake control system of the present embodiment is shown.
In fig. 1, the MR tube represents the total wind pipe; BP tube represents brake tube; in the embodiment, the third air passage is switched and communicated with the first air passage and the second air passage through the reversing valve. The reversing valve in this embodiment is implemented by a three-way valve. Wherein, the three-way valve totally two work positions, are normal position respectively: a2 is conducted with A3; rescue position: a1 is in conduction with A3.
It should be noted here that the reversing valve may also be implemented by using a four-way valve or a five-way valve, but when the ports of the reversing valve exceed three, other unused ports are all in a blocking state.
The cut-off cock of the embodiment is composed of two working positions, which are respectively: a through bit: 1 and 2 are turned on, and the off position is as follows: the 0 and 2 are conducted, and the compressed air at the 2 position is discharged.
The working principle of the two-way valve is as follows: the air pressure of the A1 and A2 ports is conducted with the A3 port after the air pressure is at the maximum value.
Referring to fig. 1, in order to more clearly describe the structure of the parking brake control system of the present embodiment, it is provided that: the two-way valve connected with the parking electromagnetic valve is a first two-way valve; the two-way valve on the third air path is a second two-way valve, and a valve connected in series between the second two-way valve and the brake control device adopts a cut-off cock which is set as a cut-off cock 1; the intercept cock connected in parallel with the parking solenoid valve is set as the intercept cock 2. The brake control device is a system for controlling a brake device to achieve a desired purpose by applying a control theory and a method, and the structure of the system is the existing structure and will not be described in detail herein.
The embodiment takes the vehicle only having the head vehicle as an example:
the parking brake control system comprises a cut-off cock 2 and a parking solenoid valve which are connected in parallel to form a parallel branch air passage, the parallel branch air passage is connected in series with a first air passage, and the first air passage is connected with a main air pipe; the second air path is connected with the brake pipe; the third air path is connected with the parking brake clamp; when the third air passage is switched and communicated with the first air passage, parking brake under the condition of normal running of the vehicle can be realized; when the third air passage is switched to be communicated with the second air passage, parking brake under the condition of vehicle rescue can be realized.
Specifically, the third air passage is switched and communicated with the first air passage and the second air passage through a three-way valve.
The intercepting cock 2 is connected with a first port A1 of the first two-way valve, the parking solenoid valve is connected with a second port A2 of the first two-way valve, and a third port A3 of the first two-way valve is used for connecting a third air path. In specific implementation, the air pressures of the first port a1 and the second port a2 of the first two-way valve are compared, and the port corresponding to the maximum air pressure is communicated with the third port A3.
When the vehicle is parked and braked in normal operation, the intercepting cock 1 is positioned at a normal position, the intercepting cock 2 is positioned at a stopping position, the three-way valve is positioned at a normal position (A2 is communicated with A3), and at the moment, the parking brake is charged or discharged by compressed air in the clamp through controlling the parking electromagnetic valve, so that the parking brake is relieved or applied.
When the vehicle normally runs and is parked and braked, the intercepting cock 1 is arranged at a normal position, the three-way valve is arranged at a normal position (A2 is communicated with A3), the parking electromagnetic valve is opened, manual control can be carried out through the intercepting cock 2, and when the intercepting cock 2 is arranged at a stopping position, the vehicle parking brake is applied; when the cut-off cock 2 is arranged at the through position, the parking brake of the vehicle is relieved.
When the vehicle normally parks and brakes, if the condition that the parking solenoid valve breaks down occurs, the cutoff cock 1 is arranged at a normal position, the three-way valve is arranged at a normal position (A2 is communicated with A3), the cutoff cock 2 can be arranged at a through position, the vehicle is parked and braked and inflated and then is in a release state, the cutoff cock 2 is arranged at a cutoff position after parking, parking brake is applied, the running efficiency of the vehicle is ensured, and safe parking is also taken into consideration.
According to the embodiment, after the parking solenoid valve is failed, the air path can be rapidly released to park and brake by using the on-off of the cut-off cock connected with the parking solenoid valve in parallel, the usability of parking and braking in the rescue process is ensured, and the potential driving hazard of complete loss of braking is avoided.
According to the parking brake control system based on the embodiment, when a vehicle is rescued, the rescue vehicle is communicated with the main air pipe of the rescued vehicle and the brake pipes of the two vehicles through the car coupler, the second air path and the third air path of the two vehicles are communicated, and the parking brake of the rescued vehicle is controlled by the rescue vehicle.
In other embodiments, if the vehicle is a multi-vehicle series in addition to the head vehicle: at this time, the first air path and the second air path are both only arranged in the head car, and the third air paths are arranged in each car and are connected in series, as shown in fig. 2. In fig. 2, the third air passages of the vehicles are connected through hoses. Each third air path is connected with the brake control device through a second two-way valve, and the second two-way valve is connected with the parking brake clamp; and a valve (such as a stop cock) is connected in series between the second two-way valve and the brake control device.
< control method of parking brake control System >
The control method of the parking brake control system of the embodiment includes:
when the vehicle is normally parked and braked, the first air path and the third air path are communicated, and the connection or disconnection between the first air path and the main air pipe is controlled through the stop cock or the parking electromagnetic valve, so that compressed air in the parking brake clamp is charged or discharged, and the parking brake is relieved or applied;
when the vehicle is rescued, the rescue vehicle is communicated with a main air pipe of the rescued vehicle and the brake pipes of the two vehicles through the car coupler, the second air path and the third air path of the two vehicles are communicated, and the parking and braking of the rescued vehicle are controlled by the rescue vehicle.
In a specific implementation, vehicle rescue parking braking includes both homogeneous vehicle rescue and heterogeneous vehicle rescue. When vehicles of the same type are rescued, the parking brake of the rescued vehicles is controlled by the rescued vehicles, the parking brake of the two vehicles is applied or released in the same state, the parking brake of the rescued vehicles can be applied under emergency conditions, the parking brakes of the two vehicles can be applied, and the usability of the parking brake in the rescue process is guaranteed.
When a non-homomorphic vehicle is rescued, the parking brake of the rescued vehicle is controlled by the pressure of the brake pipe of the rescued vehicle, and the rescued vehicle applies the parking brake after the pressure of the brake pipe of the rescued vehicle is reduced to the action pressure of the parking brake clamp, so that the usability of the parking brake in the rescuing process is ensured.
In the process of vehicle rescue of the same type or non-same type, if the unhooking phenomenon occurs, the brake pipe of the rescued vehicle exhausts air, the parking brake is applied after the parking brake clamp exhausts air, the unhooking automatic application of the parking brake is realized, and the safety of vehicle operation is guaranteed.
In the specific implementation, when the vehicle is normally parked and braked, the cut-off cock 2 is controlled to be in a cut-off state, and the conduction or cut-off between the first air path and the main air pipe is controlled through the parking electromagnetic valve, so that the parking brake is relieved or applied.
When the vehicle is normally parked and braked, the parking solenoid valve can be opened or the parking solenoid valve is in fault, the second cut-off cock is controlled to be conducted, so that the vehicle is in a relieved state after parking brake is inflated; the second cutoff cock is controlled to be closed so that the parking brake will be in an applied state after the vehicle parking brake is charged.
The control principle of the parking brake control system is explained in detail below by taking the parking brake control system shown in fig. 1 as an example:
(1) when the vehicle runs normally:
(1.1) the cut-off cock 1 is arranged at a normal position, the cut-off cock 2 is arranged at a cut-off position, the three-way valve is arranged at a normal position (A2 is communicated with A3), at the moment, the charging or discharging of compressed air in the parking brake adding clamp is realized by controlling the parking electromagnetic valve, and the releasing or applying of the parking brake is realized.
(1.2) the intercepting cock 1 is arranged at a normal position, the three-way valve is arranged at a normal position (A2 is communicated with A3), the parking electromagnetic valve is opened, manual control can be carried out through the intercepting cock 2, and when the intercepting cock 2 is arranged at the intercepting position, vehicle parking brake is applied; when the cut-off cock 2 is arranged at the through position, the parking brake of the vehicle is relieved.
(1.3) if the condition of parking solenoid valve breaking down, truncation cock 1 puts normal position, and the three-way valve puts normal position (A2 switches on with A3), can put through the position with truncation cock 2, will be in the state of alleviating after the vehicle parking braking is aerifyd, will truncate cock 2 after the parking and put the interception position again, and the parking braking is applyed, guarantees the operating efficiency of vehicle and has compromise safe parking.
(2) When the vehicle is rescued:
(2.1) same type vehicle rescue:
taking the rescue vehicle or the rescued vehicle as the same type of urban rail vehicle as an example:
after the rescue vehicle and the rescued vehicle are connected through the vehicle coupler, the MR tube and the BP tube of the two trains are communicated with each other. At the moment, the cut-off cock 1 of the rescued vehicle is cut off, air brake is isolated, the three-way valve is arranged at the rescue position, the cut-off cock 2 is arranged at the cut-off position, the parking brake of the rescued vehicle is controlled by the rescued vehicle at the moment, the parking brake applying/relieving states of the two trains are consistent, the parking brake can be applied by the operation of the rescued vehicle under the emergency working condition, the parking brakes of the two trains can be applied, and the usability of the parking brake in the rescue process is ensured.
If the unhooking condition occurs in the rescue process, the BP pipe exhausts air, and the parking brake is applied after the parking brake clamp exhausts air, so that the function of automatically applying the parking brake by unhooking is realized.
(2.2) rescue of non-homotypic vehicles:
taking a rescue vehicle as a locomotive and a rescued vehicle as an urban rail vehicle as an example:
when the urban rail vehicle breaks down and is rescued by the locomotive, the rescue locomotive and the rescued urban rail vehicle are connected through the car coupler, and then the MR pipes and the BP pipes of the two trains are conducted with each other. At the moment, the rescue vehicle is cut off by the cut-off cock 1, air brake is isolated, the three-way valve is arranged at a rescue position, the cut-off cock 2 is arranged at the cut-off position, the parking brake of the rescue urban rail vehicle is controlled by the pressure of the BP pipe of the rescue locomotive, when the locomotive applies pressure reduction brake, the pressure of the BP pipe of the rescue locomotive is reduced, and when the pressure of the BP pipe of the rescue locomotive is reduced to the action pressure of the parking brake clamp, the rescue vehicle applies parking brake, so that the parking brake availability in the rescue process is ensured.
If the rescue vehicle is unhooked in the rescue process, the BP pipe of the rescued vehicle exhausts air, and the parking brake is applied after the parking brake clamp exhausts air, so that the function of automatically applying the parking brake by unhooking is realized.
< vehicle >
A vehicle comprises a vehicle controller and the parking brake control system, wherein the parking brake control system is connected with the vehicle controller.
The specific structure of the parking brake control system has been described in detail above, and will not be described again.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A parking brake control system is characterized by comprising a main air pipe, a brake pipe, a first air path, a second air path, a third air path, a cut-off cock and a parking electromagnetic valve;
the cut-off cock and the parking solenoid valve are connected in parallel to form a parallel branch gas circuit, the parallel branch gas circuit is connected in series with a first gas circuit, and the first gas circuit is connected with a main air pipe; the second air path is connected with the brake pipe; the third air path is connected with the parking brake clamp; the third air path can be switched to communicate with the first air path and the second air path so as to realize parking brake control under the condition of normal running of the vehicle or rescue of the vehicle;
the cut-off cock is connected with a first port of the first two-way valve, the parking solenoid valve is connected with a second port of the first two-way valve, and a third port of the first two-way valve is used for being connected with a third air circuit.
2. The parking brake control system of claim 1, wherein the third air passage is switched in communication with the first air passage and the second air passage by a reversing valve.
3. The parking brake control system of claim 1, wherein the third air passage is further connected to the brake control device via a second bi-directional valve, the second bi-directional valve further connected to the parking brake clamp.
4. The parking brake control system of claim 3, wherein a valve is connected in series between the second bidirectional valve and the brake control device.
5. The parking brake control system of claim 1, wherein when the vehicle is a plurality of vehicles connected in series, the first and second air passages are disposed only in the head vehicle, and the third air passage is disposed in each vehicle and connected in series.
6. A method of controlling a parking brake control system as claimed in any one of claims 1 to 5, comprising:
when the vehicle is normally parked and braked, the first air path and the third air path are communicated, and the connection or disconnection between the first air path and the main air pipe is controlled through the stop cock or the parking electromagnetic valve, so that compressed air in the parking brake clamp is charged or discharged, and the parking brake is relieved or applied;
when the vehicle is rescued and parked for braking, the rescue vehicle is communicated with a main air pipe of the rescued vehicle and brake pipes of the two vehicles through the vehicle coupler, and then a second air path and a third air path of the two vehicles are communicated and controlled by the rescue vehicle to park and brake the rescued vehicle.
7. A control method for a parking brake control system according to claim 6, wherein in the rescue of vehicles of the same type, the parking brake of the rescued vehicle is controlled by the rescued vehicle, and the parking brakes of both vehicles are applied or released in the same state.
8. A method for controlling a parking brake control system according to claim 6, wherein in rescue of a non-homogeneous vehicle, the parking brake of the rescued vehicle is controlled by the brake pipe pressure of the rescued vehicle, and the parking brake is applied by the rescued vehicle when the brake pipe pressure of the rescued vehicle is reduced to the actuating pressure of the parking brake clamp.
9. The control method of parking brake control system according to claim 6, wherein when unhooking occurs during rescue, the brake pipe of the rescued vehicle will exhaust air, and the parking brake will be applied after the parking brake clamp exhausts air, so that unhooking automatic application of parking brake is realized.
10. The parking brake control system control method of claim 6, wherein the intercepting cock is controlled to be in an intercepting state when the vehicle is normally parked and braked, and the parking solenoid valve is used for controlling the communication or the interception between the first air passage and the main air pipe, so that the parking brake is relieved or applied.
11. The parking brake control system control method of claim 6, wherein the second cutoff cock is controlled to be turned on when the parking solenoid valve is opened or the parking solenoid valve fails during normal parking brake of the vehicle, so that the parking brake of the vehicle will be in a relieved state after being charged; the second cutoff cock is controlled to be closed so that the parking brake will be in an applied state after the vehicle parking brake is charged.
12. A vehicle, characterized by comprising:
a vehicle controller;
parking brake control system according to any one of claims 1-5, connected to a vehicle controller.
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| CN202010783677.2A CN111942423B (en) | 2020-08-06 | 2020-08-06 | Parking brake control system, control method and vehicle |
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| CN202010783677.2A CN111942423B (en) | 2020-08-06 | 2020-08-06 | Parking brake control system, control method and vehicle |
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| CN112248990B (en) * | 2020-12-24 | 2021-03-26 | 天津所托瑞安汽车科技有限公司 | Pneumatic parking system and parking control method thereof |
| CN112622975B (en) * | 2021-01-06 | 2022-06-17 | 中车唐山机车车辆有限公司 | Air exhaust device, air exhaust method and freight motor train unit train |
| CN113859196A (en) * | 2021-11-15 | 2021-12-31 | 湖南中车智行科技有限公司 | Service braking system with multi-vehicle linkage braking, rail transit vehicle and rescue vehicle |
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| CN110304100A (en) * | 2019-07-05 | 2019-10-08 | 中车青岛四方车辆研究所有限公司 | Parking brake control module and rail vehicle |
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| CN102019942B (en) * | 2010-11-30 | 2012-10-03 | 南车洛阳机车有限公司 | Parking brake control device for special railway vehicle |
| CN202541577U (en) * | 2012-04-26 | 2012-11-21 | 青岛四方车辆研究所有限公司 | Parking brake control unit for urban rail vehicle |
| CN103895667A (en) * | 2014-04-17 | 2014-07-02 | 中国北车集团大连机车车辆有限公司 | Rapid brake and relieve device and method of parking brake cylinder of fireless loopback locomotive |
| CN105109474B (en) * | 2015-09-28 | 2017-12-15 | 中车资阳机车有限公司 | A kind of locomotive parking brake control system and its control method |
| CN105480254A (en) * | 2016-01-13 | 2016-04-13 | 中车洛阳机车有限公司 | Modularized parking braking device for railway vehicle |
| CN207631272U (en) * | 2017-11-21 | 2018-07-20 | 中车株洲电力机车有限公司 | A kind of single-track vehicle rescue brake apparatus |
| JP7011546B2 (en) * | 2018-06-29 | 2022-01-26 | 川崎車両株式会社 | Simple snow-resistant brake structure for railway vehicles |
| CN109080659B (en) * | 2018-09-12 | 2023-08-18 | 宝鸡中车时代工程机械有限公司 | Parking brake control device for railway vehicle |
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| CN110304100A (en) * | 2019-07-05 | 2019-10-08 | 中车青岛四方车辆研究所有限公司 | Parking brake control module and rail vehicle |
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