CN111976695A - Control method for anti-freezing function of brake clamp - Google Patents
Control method for anti-freezing function of brake clamp Download PDFInfo
- Publication number
- CN111976695A CN111976695A CN202010796130.6A CN202010796130A CN111976695A CN 111976695 A CN111976695 A CN 111976695A CN 202010796130 A CN202010796130 A CN 202010796130A CN 111976695 A CN111976695 A CN 111976695A
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- Prior art keywords
- freezing
- brake
- vehicle
- control unit
- braking
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Classifications
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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
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/228—Devices for monitoring or checking brake systems; Signal devices for railway vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
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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
- B61H5/00—Applications or arrangements of brakes with substantially radial braking surfaces pressed together in axial direction, e.g. disc brakes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A control method for the anti-freezing function of a brake clamp is characterized by comprising the following steps: a driver issues a starting command for starting the brake clamp to prevent freezing through a display screen (hereinafter referred to as HMI), a central control unit (hereinafter referred to as CCU) in the TCMS judges the condition of preventing freezing, when freezing is prevented, the pressure for breaking ice is about 3bar for ensuring the effect of breaking ice, and in order to meet the requirement that a motor train unit in a certain load state is static on a certain slope and does not slip, only 1 vehicle is allowed to relieve air brake (2 vehicles are allowed to relieve during reconnection) in the same time. The CCU sequentially sends the anti-freezing instruction to each vehicle brake control unit, and automatically quits after lasting for 3 hours or detecting the abnormality of the anti-freezing mode.
Description
Technical Field
The invention belongs to the technical field of anti-freezing of rail vehicle components, and particularly relates to a control method for preventing freezing of a brake clamp in winter.
Background
The motor train unit in China has complex application environment, is greatly influenced by high temperature, high cold, high altitude, wind sand and the like, and has extremely high requirements on the performance of the motor train unit. In northern ice and snow days, the motor train unit can be placed on a stop line outside an overhaul warehouse after daily overhaul, the brake clamp can be caused to have water drops when the motor train unit is taken out of the warehouse due to snow removal and melting in winter, the motor train unit keeps clean, dirt absorption and water feeding under the motor train unit and other operations in the overhaul process, the external environment temperature is lower in winter, the brake clamp is caused to freeze, if the brake clamp is not timely treated, the brake clamp can generate great brake force friction force when the motor train unit operates again, damage can be brought to the brake clamp, the brake pad and the traction motor, and the service life of parts is shortened.
At present, during the parking of a motor train unit attached to the northern road bureau, a braking test is carried out manually at fixed intervals, so that the brake clamp and the brake pad are not frozen. The method is human-consuming and has hidden danger caused by human intervention.
Disclosure of Invention
The invention aims to provide a method for preventing a brake clamp and a brake pad from freezing in an ice and snow day.
In order to achieve the above object, the present invention provides a control method for preventing the brake clamp from freezing, which is characterized in that: a driver issues a starting command for starting the brake clamp to prevent freezing through a display screen (HMI for short), and a central control unit (CCU for short) in the TCMS judges the conditions for entering freezing prevention, wherein the judging conditions are as follows:
(1) local cab occupancy;
(2) the train is static;
(3) the emergency brake EB has been applied;
(4) emergency brake UB is not applied;
(5) parking brake mitigation;
(6) keeping the brake not isolated;
(7) high voltage normal
(8) The medium pressure is normal;
during the anti-freezing action, in order to ensure the ice breaking effect, the ice breaking pressure is about 3bar, and in order to meet the requirement that the motor train unit in a fixed load state is static on a certain slope and does not slip, only 1 vehicle is allowed to relieve air braking at the same time (2 vehicles are allowed to relieve during reconnection). And the CCU sequentially sends the anti-freezing instruction to each vehicle brake control unit (hereinafter referred to as BCU) to activate an anti-freezing mode. And (3) sequentially relieving air brake of each vehicle, recovering brake after a single vehicle relieves 55s, recovering brake after the next vehicle relieves 55s after an interval of 5s, stopping at an interval of 5s … …, and repeating the steps for 3 hours or automatically quitting after the abnormality of the anti-freezing mode is detected.
The CCU monitors the number of vehicles applying air brake through air brake applying state signals and releasing state signals reported by each vehicle brake control unit BCU, when 2 or more (more than 3 reconnected) vehicles release simultaneously, the CCU automatically cancels the anti-freezing mode request, reports the fault of 'anti-freezing mode abnormity' and prompts a driver to confirm whether the anti-freezing condition is met.
Advantages and improvements over the prior art
The invention keeps the intermittent action of the clamp through reasonable network control logic, realizes the anti-freezing control of the braking clamp, can effectively reduce the freezing probability of the clamp, saves manual operation and saves human resources.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
Referring to fig. 1, the driver operates the clamp to prevent the beginning of freezing and enters the condition judgment of freezing prevention of braking:
(1) local cab occupancy;
(2) the train is static;
(3) the emergency brake EB has been applied;
(4) emergency brake UB is not applied;
(5) parking brake mitigation;
(6) keeping the brake not isolated;
(7) high voltage normal
(8) The medium pressure is normal;
when the 8 conditions are met, judging whether the mode is started for 3 hours or 2 or more vehicles relieve air braking, if so, exiting the clamp freezing mode; otherwise, the braking system enters an anti-freezing mode, the ice breaking pressure is about 3bar for ensuring the ice breaking effect during the anti-freezing action, and only 1 vehicle is allowed to relieve air braking at the same time for meeting the requirement that the motor train unit in a fixed load state is static on a certain slope and does not slip, and 2 vehicles are allowed to relieve during reconnection. And the CCU in the TCMS sequentially sends the anti-freezing instruction to the BCU of each vehicle brake control unit to activate an anti-freezing mode. And (3) sequentially relieving air brake of each vehicle, recovering brake after a single vehicle relieves 55s, recovering brake after the next vehicle relieves 55s after an interval of 5s, stopping at an interval of 5s … …, and repeating the steps for 3 hours or automatically quitting after the abnormality of the anti-freezing mode is detected.
The CCU judges the number of all-row air brake release through the air brake applying state signals and the release state signals reported by the BCUs of the vehicle brake control units, when 2 or more (more than 3 connected) vehicles release simultaneously, the anti-freezing mode request is automatically cancelled, meanwhile, the fault of 'anti-freezing mode abnormity' is reported, and a driver is prompted to confirm whether the anti-freezing condition is met. When only one relieves the air brake, the freeze prevention mode is displayed activated.
Claims (2)
1. A control method for the anti-freezing function of a brake clamp is characterized by comprising the following steps: a driver issues a starting command for starting the brake clamp to prevent the freezing through a display screen, and a central control unit in the TCMS judges the condition for entering the freezing prevention, wherein the judging condition is as follows:
(1) local cab occupancy;
(2) the train is static;
(3) the emergency brake EB has been applied;
(4) emergency brake UB is not applied;
(5) parking brake mitigation;
(6) keeping the brake not isolated;
(7) high voltage normal
(8) The medium pressure is normal;
when in anti-freezing action, only 1 vehicle is allowed to relieve air braking or 2 vehicles are allowed to relieve during reconnection in the same time, and the central control unit sequentially sends an anti-freezing instruction to each vehicle braking control unit to activate an anti-freezing mode; each vehicle relieves the air brake of the vehicle in sequence, the braking of a single vehicle is recovered after relieving 55s, the braking of the next vehicle is recovered after relieving 55s after 5s, the braking is maintained at 5s … …, and the like, and the vehicle automatically exits after lasting for 3 hours or detecting the abnormality of the anti-freezing mode;
the central control unit monitors the number of vehicles applying air brake through the air brake applying state signals and the releasing state signals reported by each vehicle brake control unit, when 2 or more vehicles or more than 3 vehicles which are reconnected and released simultaneously appear, the anti-freezing mode request is automatically cancelled, meanwhile, the fault of 'anti-freezing mode abnormity' is reported, and a driver is prompted to confirm whether the anti-freezing condition is met.
2. The control method for the anti-freezing function of the brake caliper according to claim 1, characterized in that: the ice breaking pressure is 2-5bar, so that the requirement that the motor train unit in a certain load state is static and does not slip on a certain slope is met.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010796130.6A CN111976695B (en) | 2020-08-10 | 2020-08-10 | Control method for anti-freezing function of brake clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010796130.6A CN111976695B (en) | 2020-08-10 | 2020-08-10 | Control method for anti-freezing function of brake clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111976695A true CN111976695A (en) | 2020-11-24 |
| CN111976695B CN111976695B (en) | 2022-11-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010796130.6A Active CN111976695B (en) | 2020-08-10 | 2020-08-10 | Control method for anti-freezing function of brake clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111976695B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044020A (en) * | 2021-11-10 | 2022-02-15 | 中国铁道科学研究院集团有限公司 | Anti-freezing method and device for train brake clamp |
Citations (10)
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|---|---|---|---|---|
| GB471146A (en) * | 1937-02-16 | 1937-08-30 | David Eddie Semon | Improvements in or relating to anti-freeze devices for motor cooling systems |
| CN102015393A (en) * | 2008-03-26 | 2011-04-13 | 巴姆邦德尔运输有限公司 | Device for monitoring braking action |
| CN102650465A (en) * | 2012-05-10 | 2012-08-29 | 南京佳力图空调机电有限公司 | Refrigerating system of air conditioner |
| JP2013039885A (en) * | 2011-08-18 | 2013-02-28 | Ntn Corp | Electric brake device |
| CN104108405A (en) * | 2014-06-30 | 2014-10-22 | 南车青岛四方机车车辆股份有限公司 | Snow removal device and method for bogies of railway vehicles in extremely cold regions |
| DE102014107402A1 (en) * | 2014-05-26 | 2015-11-26 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Rail vehicle brake system with a conditioning device, conditioning device and method for operating a conditioning device |
| CN107891883A (en) * | 2017-11-07 | 2018-04-10 | 中车青岛四方机车车辆股份有限公司 | A kind of deicing subsystem, deicing system and de-icing method |
| CN108128313A (en) * | 2017-11-29 | 2018-06-08 | 中车青岛四方机车车辆股份有限公司 | Train anti-freeze control method, device, storage medium and processor |
| CN110331690A (en) * | 2019-07-23 | 2019-10-15 | 株洲中车特种装备科技有限公司 | The overhead deicing engineering truck of single track |
| CN110539742A (en) * | 2018-11-29 | 2019-12-06 | 中车长春轨道客车股份有限公司 | Anti-freezing method and device for braking device |
-
2020
- 2020-08-10 CN CN202010796130.6A patent/CN111976695B/en active Active
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|---|---|---|---|---|
| GB471146A (en) * | 1937-02-16 | 1937-08-30 | David Eddie Semon | Improvements in or relating to anti-freeze devices for motor cooling systems |
| CN102015393A (en) * | 2008-03-26 | 2011-04-13 | 巴姆邦德尔运输有限公司 | Device for monitoring braking action |
| JP2013039885A (en) * | 2011-08-18 | 2013-02-28 | Ntn Corp | Electric brake device |
| CN102650465A (en) * | 2012-05-10 | 2012-08-29 | 南京佳力图空调机电有限公司 | Refrigerating system of air conditioner |
| DE102014107402A1 (en) * | 2014-05-26 | 2015-11-26 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Rail vehicle brake system with a conditioning device, conditioning device and method for operating a conditioning device |
| CN104108405A (en) * | 2014-06-30 | 2014-10-22 | 南车青岛四方机车车辆股份有限公司 | Snow removal device and method for bogies of railway vehicles in extremely cold regions |
| CN107891883A (en) * | 2017-11-07 | 2018-04-10 | 中车青岛四方机车车辆股份有限公司 | A kind of deicing subsystem, deicing system and de-icing method |
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| CN110539742A (en) * | 2018-11-29 | 2019-12-06 | 中车长春轨道客车股份有限公司 | Anti-freezing method and device for braking device |
| CN110331690A (en) * | 2019-07-23 | 2019-10-15 | 株洲中车特种装备科技有限公司 | The overhead deicing engineering truck of single track |
Non-Patent Citations (3)
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| 张冬冬等: "动车组制动力控制模式分析", 《铁道机车车辆》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044020A (en) * | 2021-11-10 | 2022-02-15 | 中国铁道科学研究院集团有限公司 | Anti-freezing method and device for train brake clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111976695B (en) | 2022-11-08 |
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