CN105416311A - Speed control protecting device for diesel engine during emergency braking of locomotive - Google Patents
Speed control protecting device for diesel engine during emergency braking of locomotive Download PDFInfo
- Publication number
- CN105416311A CN105416311A CN201510868341.5A CN201510868341A CN105416311A CN 105416311 A CN105416311 A CN 105416311A CN 201510868341 A CN201510868341 A CN 201510868341A CN 105416311 A CN105416311 A CN 105416311A
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- CN
- China
- Prior art keywords
- diesel engine
- locomotive
- engine speed
- escr
- emergency braking
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention discloses a speed control protecting device for a diesel engine during emergency braking of a locomotive. The speed control protecting device comprises a driver controller and a diesel engine speed control module (SCM). A normally-closed contact K1 of an emergency stop control relay (ESCR) and a normally open contact of a main alternator field contactor (AFC) are connected in parallel and then connected between the driver controller and the diesel engine SCM. The ESCR is connected with the main AFC in parallel, connected with a mechanical control switch S2 in series and then connected to the positive pole and the negative pole of a power supply. By the adoption of the protecting device, after the locomotive is braked emergently and the diesel engine is unloaded suddenly, the rotating speed of the diesel engine can be automatically decreased to the idling rotating speed. The situation that the diesel engine of the locomotive gallops since the rotating speed is out of control can be avoided, the locomotive damage accident is prevented, and the operation safety of the locomotive is improved. Meanwhile, the oil consumption of the locomotive is reduced, and the economical efficiency of the locomotive is improved.
Description
Technical field
Diesel engine speed regulation technical field when the present invention relates to locomotive emergency braking, diesel engine speed regulation fender guard when being specifically related to a kind of locomotive emergency braking.
Background technology
The CAT3516 diesel engine that CKD7B type locomotive adopts Caterpillar (Caterpillar) company of the U.S. to produce, its rotating speed controls to be by diesel speed signaling module, the output signal of different for driver controller gear is converted to different potentials signal to send into Diesel Engine Control resume module, delivery quality again by adjusting diesel injector reaches the object changing diesel engine speed, and rotation speed change when diesel engine normally works is from 600r/min to 1800r/min.
After diesel engine starting, when the reversing handle of driver controller puts " front lead " or " then lead " position, rotate control handle, its internal piloting potentiometer resistance changes along with position of rotation difference, be converted to different potentials signal by diesel speed signaling module and send into Diesel Engine Control resume module, the delivery quality through adjusting diesel injector reaches the object changing diesel engine speed.Control handle rotates to most significant bit from lowest order, and diesel engine speed should rise to 1800r/min from 600r/min.
Locomotive is when high speed, large load operation, if because ground connection, overcurrent, water temperature are high or other reasons causes locomotive to implement emergency braking, after diesel engine Condition of Sudden Unloading, diesel engine speed still rests on current rotating speed, can not automatically be down to running down rotating speed, easily cause diesel engine speed out of control and driving, cause locomotive accident of locomotive defect.
Summary of the invention
For the shortcoming and defect of above-mentioned prior art, diesel engine speed regulation fender guard when the invention provides a kind of locomotive emergency braking, emergency braking implemented by locomotive, and after diesel engine Condition of Sudden Unloading, diesel engine speed can be down to running down rotating speed automatically.
Diesel engine speed regulation fender guard when the technical solution adopted in the present invention is locomotive emergency braking; comprise driver controller and diesel engine speed regulation module SCM; access between driver controller and diesel engine speed regulation module SCM after the normally closed contact K1 of intermediate relay ESCR is in parallel with the open contact of main generator excitation contactless switch AFC, intermediate relay ESCR is connected to the both positive and negative polarity of power supply after connecting with machine control switch S 2 with main generator excitation contactless switch AFC parallel connection again.
" 2 " port of described diesel engine speed regulation module SCM is connected with the normally closed contact K1 of intermediate relay ESCR.
Potential device R is provided with in described driver controller.
The invention has the beneficial effects as follows: emergency braking implemented by locomotive, and after diesel engine Condition of Sudden Unloading, diesel engine speed can be down to running down rotating speed automatically.Just can avoid diesel engine of locomotive because rotating speed is out of control driving, avoid the generation of accident of locomotive defect, improve the safety of locomotive operation.Reduce the oil consumption of locomotive simultaneously, improve the economy of locomotive.
Accompanying drawing explanation
Fig. 1 is prior art locomotive control circuit schematic diagram.
Fig. 2 is prior art diesel engine speed given circuit schematic diagram.
Fig. 3 is locomotive control circuit schematic diagram of the present invention.
Fig. 4 is diesel engine speed given circuit schematic diagram of the present invention.
Mark in figure: S2-machine control switch, ESCR-intermediate relay, AFC-main generator excitation contactless switch, SCM-diesel engine speed regulation module, R-potential device, the normally closed contact of K1-ESCR, the open contact of K2-AFC.
Detailed description of the invention
Now with reference to the accompanying drawings 1 to accompanying drawing 4 the present invention is described further, in the electric wiring of CKD7B type locomotive, intermediate relay ESCR is met after machine control switch S 2 connects the positive pole of power supply, namely an intermediate relay ESCR is accessed in locomotive control circuit, intermediate relay ESCR is connected with power cathode after drawing, as shown in Figure 4, diesel engine speed regulation module SCM is accessed after the normally closed contact K1 of intermediate relay ESCR is in parallel with the open contact K2 of main generator excitation contactless switch AFC, locomotive is from " 2 " port input speed-regulating signal (0.5V-4.5V) of diesel engine speed regulation module SCM, be converted to different potentials signal and send into Diesel Engine Control resume module, delivery quality through adjusting diesel injector reaches change diesel engine speed.Like this, when emergency braking implemented by locomotive, main generator excitation contacts of contactor K2 disconnects, locomotive unloads, simultaneously, diesel engine speed regulation module SCM obtains corresponding voltage signal, and diesel engine speed automatically returns to running down rotating speed (600r/min), avoid diesel engine of locomotive because rotating speed is out of control driving.And when locomotive is unloaded, this intermediate relay ESCR must not be electric, and its normally closed contact K1 closes, and makes diesel engine of locomotive still have speed-regulating function diesel engine speed and follows speed-regulating signal linear change always.When input speed-regulating signal be 0 or unsettled time, diesel engine speed should get back to running down rotating speed.Avoid the generation of accident of locomotive defect, improve the safety of locomotive operation.And when locomotive unload test, make diesel engine of locomotive still have speed-regulating function, meet the demand of locomotive between limber up period.
Claims (3)
1. diesel engine speed regulation fender guard during locomotive emergency braking; comprise driver controller and diesel engine speed regulation module SCM; it is characterized in that: access between driver controller and diesel engine speed regulation module SCM after the normally closed contact K1 of intermediate relay ESCR is in parallel with the open contact of main generator excitation contactless switch AFC, intermediate relay ESCR is connected to the both positive and negative polarity of power supply after connecting with machine control switch S 2 with main generator excitation contactless switch AFC parallel connection again.
2. diesel engine speed regulation fender guard during locomotive emergency braking according to claim 1, is characterized in that: " 2 " port of described diesel engine speed regulation module SCM is connected with the normally closed contact K1 of intermediate relay ESCR.
3. diesel engine speed regulation fender guard during locomotive emergency braking according to claim 1, is characterized in that: be provided with potential device R in described driver controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510868341.5A CN105416311B (en) | 2015-11-28 | 2015-11-28 | Diesel engine speed regulation protective device when locomotive emergency braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510868341.5A CN105416311B (en) | 2015-11-28 | 2015-11-28 | Diesel engine speed regulation protective device when locomotive emergency braking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105416311A true CN105416311A (en) | 2016-03-23 |
| CN105416311B CN105416311B (en) | 2018-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510868341.5A Active CN105416311B (en) | 2015-11-28 | 2015-11-28 | Diesel engine speed regulation protective device when locomotive emergency braking |
Country Status (1)
| Country | Link |
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| CN (1) | CN105416311B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105966422A (en) * | 2016-05-30 | 2016-09-28 | 株洲中车时代电气股份有限公司 | Control method for preventing rail vehicle breakage caused by communication failures |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1173836A (en) * | 1997-08-29 | 1999-03-16 | Toyota Motor Corp | Power feeding termination device for load |
| US20060255656A1 (en) * | 2005-05-11 | 2006-11-16 | Linebach Mark A | System and method for dealing with ground fault conditions that can arise in an electrical propulsion system |
| CN101570143A (en) * | 2009-06-04 | 2009-11-04 | 永济新时速电机电器有限责任公司 | Emergency braking control device for electrically-driven tram car |
| CN203707745U (en) * | 2013-11-18 | 2014-07-09 | 南车洛阳机车有限公司 | Over-voltage protection device for preventing voltage of locomotive generator from being overhigh |
| CN104828113A (en) * | 2015-04-30 | 2015-08-12 | 中国北车集团大连机车车辆有限公司 | Control method of locomotive driver alerting device |
| CN204775228U (en) * | 2015-07-22 | 2015-11-18 | 永济新时速电机电器有限责任公司 | Novel protection circuit that starts of diesel locomotive |
-
2015
- 2015-11-28 CN CN201510868341.5A patent/CN105416311B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1173836A (en) * | 1997-08-29 | 1999-03-16 | Toyota Motor Corp | Power feeding termination device for load |
| US20060255656A1 (en) * | 2005-05-11 | 2006-11-16 | Linebach Mark A | System and method for dealing with ground fault conditions that can arise in an electrical propulsion system |
| CN101570143A (en) * | 2009-06-04 | 2009-11-04 | 永济新时速电机电器有限责任公司 | Emergency braking control device for electrically-driven tram car |
| CN203707745U (en) * | 2013-11-18 | 2014-07-09 | 南车洛阳机车有限公司 | Over-voltage protection device for preventing voltage of locomotive generator from being overhigh |
| CN104828113A (en) * | 2015-04-30 | 2015-08-12 | 中国北车集团大连机车车辆有限公司 | Control method of locomotive driver alerting device |
| CN204775228U (en) * | 2015-07-22 | 2015-11-18 | 永济新时速电机电器有限责任公司 | Novel protection circuit that starts of diesel locomotive |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105966422A (en) * | 2016-05-30 | 2016-09-28 | 株洲中车时代电气股份有限公司 | Control method for preventing rail vehicle breakage caused by communication failures |
| CN105966422B (en) * | 2016-05-30 | 2018-07-13 | 株洲中车时代电气股份有限公司 | It is a kind of to prevent rail vehicle broken control method of machine caused by communication failure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105416311B (en) | 2018-09-04 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No. 51, middle The Strip, Shahekou District, Dalian, Liaoning Applicant after: DALIAN LOCOMOTIVE AND ROLLING STOCK CO., LTD. CNR GROUP Address before: No. 51, middle The Strip, Shahekou District, Dalian, Liaoning Applicant before: China Beiche Group Dalian Locomotive & Roll Stock Works |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190423 Address after: No. 10, Fuxing Road, Haidian District, Beijing Co-patentee after: DALIAN LOCOMOTIVE AND ROLLING STOCK CO., LTD. CNR GROUP Patentee after: CHINA RAILWAY CORPORATION Address before: No. 51, middle The Strip, Shahekou District, Dalian, Liaoning Patentee before: DALIAN LOCOMOTIVE AND ROLLING STOCK CO., LTD. CNR GROUP |