CN201457097U - Electric drive rail car emergency braking control device - Google Patents
Electric drive rail car emergency braking control device Download PDFInfo
- Publication number
- CN201457097U CN201457097U CN2009201031957U CN200920103195U CN201457097U CN 201457097 U CN201457097 U CN 201457097U CN 2009201031957 U CN2009201031957 U CN 2009201031957U CN 200920103195 U CN200920103195 U CN 200920103195U CN 201457097 U CN201457097 U CN 201457097U
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- emergency braking
- traction
- control
- control loop
- digital
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Abstract
The utility model relates to an electrical control system for an electric drive rail car, in particular to an electric drive rail car emergency braking control device, which solves the problem that an existing electric drive rail car emergency braking control device is poor in rail car emergency braking effects because a main generator always remains in traction generating state when in emergency braking. The emergency braking control device comprises a control circuit and a traction emergency braking switch on the electric drive rail car; the control circuit includes a speed sensor, a digital-to-analog conversion box, a speed signal gathering and processing circuit, an excitation control loop and a traction control loop; the digital-to-analog conversion box with an over-speed judgment function is provided with an over-speed control signal output end; an emergency braking and over-speed control loop additionally arranged between a positive electrode and a negative electrode of a power source is formed by serially connecting a parallel branch and an intermediate relay coil; the parallel branch is formed by the over-speed control signal output end of the digital-to-analog conversion box and the emergency braking switch; and two normally closed contacts of an intermediate relay are respectively in series connection with the excitation control loop and the traction control loop.
Description
Technical field
The utility model relates to the electric control system of electrically-driven tram car, is specially a kind of emergency braking control device for electrically-driven tram car.
Background technology
The emergency braking and the overspeed protection function of existing electrically-driven tram car all are to realize by the electromagnetic valve that control is installed on the train pipe airline.When rail vehicle being implemented emergency braking or driving over the speed limit protection, the electromagnetic valve on the train pipe is opened, and air pressure decline, the brake pipe air pressure of train pipe are risen, and Pneumatic brake systems is implemented emergency braking to rail vehicle.But in this process, owing to do not disconnect main energizing circuit and the traction power circuit sent out, main generator is in the traction generating state always, and traction motor also is in the stall running state always, causes rail vehicle emergency braking poor effect.If rail vehicle moves for a long time or frequently, will cause that wheel relaxes, wheel-rail wear and tear even cause faults such as the traction motor winding burns under this state.
Summary of the invention
The utility model main generator when solving existing emergency braking control device for electrically-driven tram car because of emergency braking is in always that traction generating state, traction motor are in always that the stall running state causes that rail vehicle emergency braking poor effect, wheel relax, wheel-rail wear and tear even the problem that causes the traction motor winding to burn, and a kind of emergency braking control device for electrically-driven tram car is provided.
The utility model is concrete to adopt following technical scheme to realize: emergency braking control device for electrically-driven tram car, comprise control circuit, described control circuit comprises the speed signal acquisition process circuit of the digital to analogy conversion box that contains speed sensor, links to each other with speed sensor; Be connected in the excitation control loop that is in series with traction excitation contactor coil between electrically-driven tram car department control 1 bit line end and the power cathode; Be connected in the mouth of electrically-driven tram car running under power switch and the traction control loop that contains automatically controlled contactless coil parallel with one another between the power cathode; Also comprise the traction emergency braking switch on the electrically-driven tram car; Described digital to analogy conversion box has the hypervelocity arbitration functions and has the hypervelocity control signal output ends; Between power positive cathode, have additional hypervelocity control signal output ends and the parallel branch of emergency braking switch and emergency braking and the hypervelocity control loop that the intermediate relay coil is in series by the digital to analogy conversion box; Two normally closed contacts of intermediate relay are serially connected with excitation control loop and traction control loop respectively.
The described digital to analogy conversion box that has the hypervelocity arbitration functions and have a control signal output ends that exceed the speed limit reaches the DF8 type digital to analogy conversion box of company's production for Shanghai Germany and Italy, the impulse singla that speed sensor is sent into carries out shaping, F/V conversion, filtering, electric current and voltage is changed, impedance transformation, and power supply control device exceeds the speed limit and controls or supply extensive angle amperemeter/ammtr demonstration vehicle track running speed; When the rail vehicle overspeed, the open contact closure of digital to analogy conversion box internal relay, output rail vehicle hypervelocity control signal.
When this device was installed, traction excitation contactor normally open contact was connected in the main generator excitation coil and is used to draw between the permanent merit excitation unit of excitation; Each automatically controlled contactless switch normally open contact is in series with each traction motor respectively.The intermediate relay normally open contact is connected with the emergency braking electromagnetic valve, the action of control electromagnetic valve.
During the electrically-driven tram car running under power, speed sensor is to vehicle track running speed, data such as direction carry out sample detecting and produce square-wave signal being transported to the digital to analogy conversion box, the digital to analogy conversion box carries out shaping to the signal of input, conversion, offer the electrical controller control that exceeds the speed limit, offering the extensive angle amperemeter/ammtr and show vehicle track running speed. the electrically-driven tram car emergency braking apparatus is to realize by electric control system, use the emergency braking switch, digital to analogy conversion box and intermediate relay make emergency braking and main sending out between excitation and the running under power form electric interlocking. when the electrically-driven tram car running velocity reaches rail vehicle highest running speed or circuit limited speed value, speed sensor changes into electric signal to the running velocity of detected rail vehicle and is transported in the digital to analogy conversion box, the digital to analogy conversion box changes into an overspeed switch signal output with the signal that receives, the closure and the disconnection of this signal may command digital to analogy conversion box internal relay open contact, this signal and emergency brake signal combined action are in the intermediate relay coil simultaneously; When rail vehicle exceeds the speed limit, digital to analogy conversion box internal relay open contact closure, make digital to analogy conversion box output hypervelocity control signal, if rail vehicle is to implement emergency braking, emergency braking switch closure then, under two kinds of situations the electrically-driven tram car emergency braking at intermediate relay coil place and hypervelocity control loop are connected, the intermediate relay coil gets electric adhesive, its normally open contact closure, normally closed interlock disconnects, and the energising of normally open contact controlled emergency braking electromagnetic valve is opened, and rail vehicle train pipe air pressure is descended, the brake pipe air pressure rises, and Pneumatic brake systems is implemented emergency braking; Two traction excitation contactor coil and automatically controlled contactless coil dead electricity that normally closed interlock is controlled respectively, and then the outage of control electrically-driven tram car main generator excitation circuit and running under power power circuit, finally reach the main generator of electrically-driven tram car rail vehicle when emergency braking or hypervelocity and the purpose that traction motor is in electroless state, finish emergency braking.
Compared with prior art, the emergency braking control device for electrically-driven tram car that provides of the utility model has following beneficial effect:
Emergency braking control device for electrically-driven tram car has and controls simple, low, the emergency braking good effectiveness of cost.In the control of electrically-driven tram car system; by the existing simple electric interlocking of appliance contact; can when electrically-driven tram car emergency braking and hypervelocity, cut off main generator excitation circuit and running under power power circuit; guarantee the traffic safety of rail vehicle; effectively protect traction electric machine and wheel, prolong the service life of traction electric machine and wheel.In the time of can solving at present existing emergency braking control device for electrically-driven tram car because of emergency braking main generator be in always that traction generating state, traction motor are in always that the stall running state causes that rail vehicle emergency braking poor effect, wheel relax, wheel-rail wear and tear even the problem that causes the traction motor winding to burn.
Description of drawings
Fig. 1 is the main circuit diagram of emergency braking control device for electrically-driven tram car described in the utility model;
Fig. 2 is the control circuit schematic diagram of emergency braking control device for electrically-driven tram car described in the utility model.
The specific embodiment
Emergency braking control device for electrically-driven tram car comprises control circuit, and described control circuit comprises the speed signal acquisition process circuit of the digital to analogy conversion box BV that contains speed sensor SS, links to each other with speed sensor SS; Be connected in the excitation control loop that is in series with traction excitation contactor 2KM coil between control 1 bit line end D1 of electrically-driven tram car department and the power cathode; Be connected in the mouth D2 of electrically-driven tram car running under power switch and the traction control loop that contains automatically controlled contactless switch 1KM1～1KMn coil parallel with one another between the power cathode; Also comprise the traction emergency braking switch JZ on the electrically-driven tram car; Described digital to analogy conversion box BV has the hypervelocity arbitration functions and has the hypervelocity control signal output ends; Between power positive cathode, have additional hypervelocity control signal output ends and the parallel branch of emergency braking switch JZ and emergency braking and the hypervelocity control loop that intermediate relay 1K coil is in series by digital to analogy conversion box BV; Two normally closed contacts of intermediate relay 1K are serially connected with excitation control loop and traction control loop respectively.
Described digital to analogy conversion box reaches the DF8 type digital to analogy conversion box that company produces for Shanghai Germany and Italy, the impulse singla that speed sensor is sent into carries out shaping, F/V conversion, filtering, electric current and voltage is changed, impedance transformation, and power supply control device exceeds the speed limit and controls or supply extensive angle amperemeter/ammtr demonstration vehicle track running speed; When the rail vehicle overspeed, the open contact closure of digital to analogy conversion box internal relay, output rail vehicle hypervelocity control signal.
During installation, traction excitation contactor 2KM normally open contact is connected in the main generator excitation coil and is used to draw between the permanent merit excitation unit AE of excitation; It is parallel with one another after each automatically controlled contactless switch 1KM1～1KMn normally open contact and each traction motor M1～Mn connect respectively in rectifying device UR mouth.Intermediate relay 1K normally open contact is connected with the emergency braking electromagnetic valve, the action of control electromagnetic valve.
During the electrically-driven tram car running under power, controller need be carried to department control 1 or other non-parking stall, at this moment department's control 1 bit switch closure, excitation control loop is connected, traction excitation contactor 2KM coil gets, its normally open contact is all closed, and the main energizing circuit of sending out is connected electrically-driven tram car main generator generator operation; If want traction electric machine work, then need the closed draw run switch, rail vehicle running under power loop is connected, automatically controlled contactless switch 1KM1～1KMn coil gets electric, its normally open contact closure, and the traction power circuit is connected, each traction electric machine is started working, the electrically-driven tram car running under power.When electrically-driven tram car normally moves, speed sensor SS carries out sample detecting and produces square-wave signal being transported to digital to analogy conversion box BV to data such as the running velocity of rail vehicle, directions, digital to analogy conversion box BV carries out shaping, conversion to the signal of input, offer extensive angle amperemeter/ammtr PS and show vehicle track running speed, digital to analogy conversion this moment box BV does not have the output of hypervelocity control signal, electrically-driven tram car emergency braking and hypervelocity control loop are disconnected, and intermediate relay 1K coil must not.
When the electrically-driven tram car running velocity reaches rail vehicle highest running speed or circuit limited speed value, speed sensor SS changes into electric signal to the running velocity of detected rail vehicle and is transported among the digital to analogy conversion box BV, digital to analogy conversion box BV changes into an overspeed switch signal from the output of hypervelocity control signal output ends with the signal that receives, and this signal and emergency brake signal combined action are in intermediate relay 1K coil; When rail vehicle exceeds the speed limit, conducting between the hypervelocity control signal output ends of digital to analogy conversion box BV, if rail vehicle is to implement emergency braking, emergency braking switch JZ closure then, under two kinds of situations the electrically-driven tram car emergency braking at intermediate relay 1K coil place and hypervelocity control loop are connected, intermediate relay 1K coil gets electric adhesive, its normally open contact closure, normally closed interlock disconnects, the energising of normally open contact controlled emergency braking electromagnetic valve is opened, the rail vehicle train tube pressure is descended, and Brake pipe pressure rises, and Pneumatic brake systems is implemented emergency braking; Two traction excitation contactor 2KM coil and automatically controlled contactless switch 1KM1～1KMn coil losing electricities that normally closed interlock is controlled respectively, and then the outage of control electrically-driven tram car main generator excitation circuit and running under power power circuit, finally reach the main generator of electrically-driven tram car rail vehicle when emergency braking or hypervelocity and the purpose that traction motor is in electroless state, finish emergency braking.
After emergency braking was alleviated, the driver just can connect main generator excitation circuit and traction motor feed circuit through operation control, to recover the running under power of rail vehicle.The driver disconnects emergency braking switch JZ, and when the vehicle track running speed of a motor vehicle does not reach highest running speed or circuit limited speed value, be that digital to analogy conversion box BV is not when exporting hypervelocity control signal, its internal relay open contact K and disconnecting, the emergency braking at intermediate relay 1K coil place and hypervelocity control loop are disconnected, intermediate relay 1K coil losing electricity, its closed normally open contact disconnects, institute's controlled emergency braking electromagnetic valve dead electricity closure, the rail vehicle train tube pressure is raise, and Pneumatic brake systems stops to implement emergency braking; Simultaneously, open circuited two normally closed interlocks of intermediate relay 1K are closed again, excitation control loop and traction control loop are connected, traction excitation contactor 2KM coil and automatically controlled contactless switch 1KM1～1KMn coil get, the normally open contact that then draws the normally open contact of excitation contactor 2KM and automatically controlled contactless switch 1KM1～1KMn is all closed, main generator excitation circuit and rail vehicle running under power power circuit are all connected, and electrically-driven tram car recovers running under power.
Claims (1)
1. an emergency braking control device for electrically-driven tram car comprises control circuit, and described control circuit comprises the speed signal acquisition process circuit of the digital to analogy conversion box (BV) that contains speed sensor (SS), links to each other with speed sensor (SS); Be connected in the excitation control loop that is in series with traction excitation contactor (2KM) coil between electrically-driven tram car department control 1 bit line end (D1) and the power cathode; Be connected in and contain the automatically controlled contactless switch parallel with one another (traction control loop of coil of 1KM1～1KMn) between the mouth (D2) of electrically-driven tram car running under power switch and the power cathode; Also comprise the traction emergency braking switch (JZ) on the electrically-driven tram car; It is characterized in that: described digital to analogy conversion box (BV) has the hypervelocity arbitration functions and has the hypervelocity control signal output ends; Between power positive cathode, have additional hypervelocity control signal output ends and the parallel branch of emergency braking switch (JZ) and emergency braking and the hypervelocity control loop that intermediate relay (1K) coil is in series by digital to analogy conversion box (BV); Two normally closed contacts of intermediate relay (1K) are serially connected with excitation control loop and traction control loop respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201031957U CN201457097U (en) | 2009-06-04 | 2009-06-04 | Electric drive rail car emergency braking control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201031957U CN201457097U (en) | 2009-06-04 | 2009-06-04 | Electric drive rail car emergency braking control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201457097U true CN201457097U (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201031957U Expired - Fee Related CN201457097U (en) | 2009-06-04 | 2009-06-04 | Electric drive rail car emergency braking control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201457097U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019047049A1 (en) * | 2017-09-06 | 2019-03-14 | 上海六辔机电科技有限公司 | Microcomputer-controlled electromechanical braking system |
| WO2022062579A1 (en) * | 2020-09-24 | 2022-03-31 | 中车株洲电力机车有限公司 | Train traction cutting and control system and method in the case of emergency braking |
-
2009
- 2009-06-04 CN CN2009201031957U patent/CN201457097U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019047049A1 (en) * | 2017-09-06 | 2019-03-14 | 上海六辔机电科技有限公司 | Microcomputer-controlled electromechanical braking system |
| WO2022062579A1 (en) * | 2020-09-24 | 2022-03-31 | 中车株洲电力机车有限公司 | Train traction cutting and control system and method in the case of emergency braking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20140604 |