CN111775919A - Locomotive auxiliary braking method and device - Google Patents
Locomotive auxiliary braking method and device Download PDFInfo
- Publication number
- CN111775919A CN111775919A CN202010722039.XA CN202010722039A CN111775919A CN 111775919 A CN111775919 A CN 111775919A CN 202010722039 A CN202010722039 A CN 202010722039A CN 111775919 A CN111775919 A CN 111775919A
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- Prior art keywords
- braking
- emergency
- locomotive
- electric
- parking
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses an auxiliary braking method for a locomotive, which comprises the following steps: and when the emergency braking signal is received and the pressure of the brake cylinder is detected to be less than the preset pressure value, the locomotive performs electric braking. By adopting the technical scheme, compared with the prior art, the invention can automatically send signals to the parking brake device and the electric brake device after the emergency brake of the locomotive fails, so that the locomotive automatically executes electric brake and parking brake, thereby safely stopping the locomotive, eliminating equipment faults and safety accidents caused by improper operation due to human factors, and ensuring the running safety of the locomotive.
Description
Technical Field
The invention relates to the field of brake control, in particular to an auxiliary braking method and device for a locomotive.
Background
The common braking functions of the locomotive at present mainly comprise service braking, parking braking and emergency braking. Under the condition of normal running of the locomotive, the locomotive generally uses a service brake to decelerate; electric braking is a type of service braking, and the principle of the electric braking is that a traction motor is changed into a generator, and electric energy is fed back to a power grid for use, so that a braking action is generated. Parking brake is a friction brake, which is a device used when a locomotive is parked for a long time. The existing locomotive is generally stopped by using a service brake under the condition of normal running, and a driver can trigger the emergency brake only when an emergency occurs. The emergency brake is used as the last defense line of the locomotive, and has great significance for the safe braking and stopping of the locomotive. However, in thousands of locomotives running on line, the risk of failure of emergency braking caused by equipment failure still exists, and once the last defense line of emergency braking also fails, the locomotive cannot be rapidly and safely stopped, and safety accidents are easily caused.
Disclosure of Invention
In order to solve the problems that the locomotive cannot be quickly and safely stopped when the emergency braking of the existing locomotive fails and safety accidents are easily caused in the prior art, the invention provides an auxiliary braking method of the locomotive, and the specific technical scheme is as follows.
A method of locomotive auxiliary braking, the method comprising: and when the emergency braking signal is received and the pressure of the brake cylinder is detected to be less than the preset pressure value, the locomotive performs electric braking.
When the emergency braking signal is sent but the pressure value of the brake cylinder does not reach the preset pressure value, the emergency braking failure is indicated, the situation of the emergency braking failure can be identified through the method, and the electric braking is automatically carried out, so that the locomotive is safely stopped, safety accidents caused by equipment faults and improper operation due to human factors are eliminated, and the operation safety of the locomotive is ensured.
Preferably, the method further comprises: and when the running speed of the locomotive is reduced to the preset speed in the electric braking state, parking braking is carried out.
Specifically, the emergency braking signal comprises an emergency signal generated when an automatic braking handle is placed at an emergency position, an emergency braking signal generated by a monitoring device, an emergency signal generated when an emergency relief valve is tightened, and an emergency signal generated when a train is separated.
Based on the same inventive concept, the invention also provides an auxiliary braking device of the locomotive, which comprises a pressure sensor, an emergency signal trigger device, a controller and an electric braking device; the pressure sensor is used for detecting a pressure value in the brake cylinder and sending the detected pressure value to the controller; the controller is used for sending an electric braking instruction to the electric braking device when receiving an emergency braking signal sent by the emergency signal triggering device and the detected pressure value is smaller than a preset pressure value; the electric brake device is used for executing electric braking when receiving an electric braking command.
Preferably, the parking brake device also comprises a speed sensor and a parking brake device; the speed sensor is used for detecting the running speed of the locomotive; the speed sensor is communicated with the controller, the controller is used for sending a parking braking instruction to the parking braking device when the running speed of the locomotive is reduced to a preset speed in an electric braking state, and the parking braking device is used for executing parking braking when receiving the parking braking instruction.
Preferably, the controller comprises a plurality of control units that are redundant of each other.
Specifically, the emergency braking signal comprises an emergency signal generated when an automatic braking handle is placed at an emergency position, an emergency braking signal generated by a monitoring device, an emergency signal generated when an emergency relief valve is tightened, and an emergency signal generated when a train is separated.
Preferably, the value range of the preset pressure value is 40-60kPa, and preferably 50 kPa.
Preferably, the preset speed ranges from 2 km/h to 10km/h, preferably 5 km/h.
In the scheme, the control method and the execution device (the electric brake device and the parking brake device) of the locomotive electric brake and the parking brake are all the prior art.
By adopting the technical scheme, compared with the prior art, the invention can automatically send signals to the parking brake device and the electric brake device after the emergency brake of the locomotive fails, so that the locomotive automatically executes electric brake and parking brake, thereby safely stopping the locomotive, eliminating equipment faults and safety accidents caused by improper operation due to human factors, and ensuring the running safety of the locomotive.
Drawings
FIG. 1 is a schematic flow chart of an auxiliary braking method for a locomotive according to the present invention;
FIG. 2 is a schematic structural diagram of an auxiliary braking device for a locomotive according to the present invention.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
As shown in fig. 1, a method for assisting braking of a locomotive, the method comprising:
when an emergency braking signal is received and the pressure of the brake cylinder is detected to be smaller than a preset pressure value, the locomotive performs electric braking;
and when the running speed of the locomotive is reduced to the preset speed in the electric braking state, parking braking is carried out.
The emergency braking signal comprises an emergency signal generated when the automatic braking handle is placed at an emergency position, an emergency braking signal generated by the monitoring device, an emergency signal generated when the emergency relief valve is tightened and an emergency signal generated when the train is separated.
As shown in fig. 2, an auxiliary braking device for a locomotive includes a pressure sensor, an emergency signal triggering device, a speed sensor, a controller, an electric braking device and a parking braking device; the pressure sensor is used for detecting a pressure value in the brake cylinder and sending the detected pressure value to the controller; the controller is used for sending an electric braking instruction to the electric braking device when receiving an emergency braking signal sent by the emergency signal triggering device and the detected pressure value is less than a preset pressure value of 50 kPa; the electric braking device is used for executing electric braking when receiving an electric braking instruction; the emergency braking signal comprises an emergency signal generated when the automatic braking handle is arranged at an emergency position, an emergency braking signal generated by the monitoring device, an emergency signal generated when the emergency relief valve is tightened and an emergency signal generated when the train is separated.
The speed sensor is used for detecting the running speed of the locomotive; the speed sensor is communicated with the controller, the controller is used for sending a parking braking instruction to the parking braking device when the running speed of the locomotive is reduced to 5km/h in an electric braking state, and the parking braking device is used for executing parking braking when receiving the parking braking instruction. The controller comprises a plurality of control units which are mutually redundant.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A method of assisting braking of a locomotive, the method comprising: and when the emergency braking signal is received and the pressure of the brake cylinder is detected to be less than the preset pressure value, the locomotive performs electric braking.
2. The locomotive auxiliary braking method of claim 1, further comprising: and when the running speed of the locomotive is reduced to the preset speed in the electric braking state, parking braking is carried out.
3. The locomotive auxiliary braking method according to claim 1 or 2, characterized in that: the emergency braking signal comprises an emergency signal generated when the automatic braking handle is arranged at an emergency position, an emergency braking signal generated by the monitoring device, an emergency signal generated when the emergency relief valve is tightened and an emergency signal generated when the train is separated.
4. The auxiliary braking device of the locomotive is characterized by comprising a pressure sensor, an emergency signal triggering device, a controller and an electric braking device; the pressure sensor is used for detecting a pressure value in the brake cylinder and sending the detected pressure value to the controller; the controller is used for sending an electric braking instruction to the electric braking device when receiving an emergency braking signal sent by the emergency signal triggering device and the detected pressure value is smaller than a preset pressure value; the electric brake device is used for executing electric braking when receiving an electric braking command.
5. The locomotive auxiliary brake device of claim 4, wherein: the parking brake device also comprises a speed sensor and a parking brake device; the speed sensor is used for detecting the running speed of the locomotive; the speed sensor is communicated with the controller, the controller is used for sending a parking braking instruction to the parking braking device when the running speed of the locomotive is reduced to a preset speed in an electric braking state, and the parking braking device is used for executing parking braking when receiving the parking braking instruction.
6. The locomotive auxiliary brake device according to claim 4 or 5, wherein: the controller comprises a plurality of control units which are mutually redundant.
7. The locomotive auxiliary brake device according to claim 4 or 5, wherein: the emergency braking signal comprises an emergency signal generated when the automatic braking handle is arranged at an emergency position, an emergency braking signal generated by the monitoring device, an emergency signal generated when the emergency relief valve is tightened and an emergency signal generated when the train is separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010722039.XA CN111775919A (en) | 2020-07-24 | 2020-07-24 | Locomotive auxiliary braking method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010722039.XA CN111775919A (en) | 2020-07-24 | 2020-07-24 | Locomotive auxiliary braking method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111775919A true CN111775919A (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010722039.XA Pending CN111775919A (en) | 2020-07-24 | 2020-07-24 | Locomotive auxiliary braking method and device |
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| CN (1) | CN111775919A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862485A (en) * | 2012-09-13 | 2013-01-09 | 中国北车集团大连机车车辆有限公司 | Auxiliary braking system of train and control method |
| CN103625504A (en) * | 2013-12-05 | 2014-03-12 | 南车株洲电力机车有限公司 | Method and device for control braking of electric locomotive |
| CN110077373A (en) * | 2019-05-09 | 2019-08-02 | 湖南中车时代通信信号有限公司 | A kind of control method of magnetic-levitation train braking by grades |
| CN111348023A (en) * | 2018-12-24 | 2020-06-30 | 比亚迪股份有限公司 | Vehicle and braking method and device thereof |
-
2020
- 2020-07-24 CN CN202010722039.XA patent/CN111775919A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862485A (en) * | 2012-09-13 | 2013-01-09 | 中国北车集团大连机车车辆有限公司 | Auxiliary braking system of train and control method |
| CN103625504A (en) * | 2013-12-05 | 2014-03-12 | 南车株洲电力机车有限公司 | Method and device for control braking of electric locomotive |
| CN111348023A (en) * | 2018-12-24 | 2020-06-30 | 比亚迪股份有限公司 | Vehicle and braking method and device thereof |
| CN110077373A (en) * | 2019-05-09 | 2019-08-02 | 湖南中车时代通信信号有限公司 | A kind of control method of magnetic-levitation train braking by grades |
Non-Patent Citations (2)
| Title |
|---|
| 中国铁道科学研究院编: "机车紧急制动后使用动力制动试验研究", 《中国铁道科学研究院60周年学术论文集》 * |
| 王奇钟著: "《列车操纵技术实用教程》", 30 September 2016 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220809 Address after: 266012 south side of Xinye road and west side of Herong Road, Qingdao high tech Industrial Development Zone, Qingdao, Shandong Province Applicant after: CRRC Brake System Co.,Ltd. Address before: 412001 Tianxin garden in Shi Feng District, Zhuzhou, Hunan Applicant before: CRRC ZHUZHOU LOCOMOTIVE Co.,Ltd. |
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| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201016 |
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| RJ01 | Rejection of invention patent application after publication |