CN205417587U - Track traffic electricity drives hydraulic braking control system - Google Patents
Track traffic electricity drives hydraulic braking control system Download PDFInfo
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- CN205417587U CN205417587U CN201620201058.7U CN201620201058U CN205417587U CN 205417587 U CN205417587 U CN 205417587U CN 201620201058 U CN201620201058 U CN 201620201058U CN 205417587 U CN205417587 U CN 205417587U
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Abstract
The utility model discloses a track traffic electricity drives hydraulic braking control system, including electronic braking the control unit, motor drive hydraulic means and liquid braking device, electronic braking the control unit receives the braking instruction and carries out brake force distribution and control through train communications network, electronic braking the control unit carries out the data interaction through the braking intranet with motor drive hydraulic means, motor drive hydraulic means turns into the hydraulic pressure signal with the brake force request, by the execution of hydraulic pressure signal driver liquid braking device. The utility model has the advantages of simple structure is compact, whole quality is little, the pressure control precision is high, control response is fast.
Description
Technical field
This utility model is mainly concerned with the braking technology field of rail traffic vehicles, refers in particular to a kind of electricity being applicable to rail traffic vehicles and drives hydraulic braking control system.
Background technology
At present, be primarily present full power hydraulic brake system in the brakes of rail traffic vehicles, full Pneumatic braking system (air damping) is gentle turns brake fluid system these three mode.
In the brakes using Full-hydraulic braking apparatus mode, hydraulic pump provides hydraulic oil, and be stored in loaded cylinder, being controlled hydraulic fluid pressure according to the control instruction of electronic brake control unit through various electromagnetic valves, the braking oil pressure after overregulating promotes brake block to compress wheel and produces brake force in entering foundation brake unit again.The pressure of the hydraulic pressure of full power hydraulic brake system is higher, on the premise of guaranteeing to produce enough brake force, in brake fluid system, the checking cylinder size of foundation brake unit is little, lightweight, the change response of brake force is fast, but brake fluid system have employed a lot of high-precision hydraulic buttery valve braking hydraulic pressure is adjusted, systematic comparison is complicated, is not easy to diagnosis after breaking down, high to maintenance requirement.
In the Pneumatic brake systems using full air-pressure brake mode, air compressor produces compressed air, and be stored in energy storage reservoir, again through various electromagnetic valves according to the control instruction of electronic brake control unit ready-made control pressure air, control to promote brake block to compress wheel in pressure air brake pressure air after relay valve amplifies enters foundation brake unit and produce brake force.Because the air pressure in Pneumatic braking system is the highest, so in order to ensure to produce enough brake force, the components and parts stock size in Pneumatic braking system is bigger.As, the checking cylinder stock size of foundation brake unit, weight are relatively big, and the change response speed of air pressure is relatively slow, and the time that brake force is set up is longer, affects braking response speed.
Require strict occasion in some bulk, for the overall dimensions of reduction system, have employed gas and turn the mode of braking of hydraulic pressure.Turn in the brakes of hydraulic braking mode using gas, air compressor produces compressed air, air compressor produces compressed air, and be stored in energy storage reservoir, again through various electromagnetic valves according to the control instruction of electronic brake control unit ready-made control pressure air, compressed air after overregulating enters in gas-liquid conversion equipment, the compressed air of gas-liquid conversion equipment input lower pressure, exporting the hydraulic oil of elevated pressures after transformed, high pressure liquid force feed promotes brake block to compress wheel and produces brake force in entering foundation brake unit.Turning in brake fluid system at above-mentioned gas, foundation brake unit uses hydraulic way, and checking cylinder size is little, lightweight, but is still braked by control pressure air, and the time that brake force is set up is longer, still there is the shortcoming that braking response is slow.
Utility model content
The technical problems to be solved in the utility model be that for prior art exist technical problem, this utility model provide a kind of simple and compact for structure, total quality is little, pressure controling precision is high, control respond fast track traffic electricity drive hydraulic braking control system.
For solve above-mentioned technical problem, this utility model by the following technical solutions:
A kind of track traffic electricity drives hydraulic braking control system, including electronic brake control unit, motor driven liquid pressure device and liquid braking device, described electronic brake control unit receives braking instruction by TCN and carries out braking force distribution and control, described electronic brake control unit carries out data interaction by braking Intranet with motor driven liquid pressure device, brake force request is converted into hydraulic pressure signal by described motor driven liquid pressure device, hydraulic pressure signal drive liquid braking device execution.
As further improvement of the utility model: described motor driven liquid pressure device includes drive and control of electric machine unit, motor and machine liquid shifter, described motor driven liquid pressure device is after the brake force receiving electronic brake control unit is asked, controlled moment and the speed of motor by described drive and control of electric machine unit, export corresponding hydraulic pressure signal by described machine liquid shifter and drive liquid braking device action.
As further improvement of the utility model: described motor driven liquid pressure device also includes pressure transducer, by pressure transducer, hydraulic pressure signal is fed back to drive and control of electric machine unit, form closed loop control.
As further improvement of the utility model: described pressure transducer is used for the feedback signal of Real-time Collection machine liquid shifter, and this feedback signal includes pressure and/or flow.
As further improvement of the utility model: the relevant control instruction of train is reached braking control system as control instruction transmission medium by described TCN, the most also state and the fault-signal of braking control system is reported to train central controller or driver.
Compared with prior art, the utility model has the advantage of: track traffic electricity of the present utility model drives hydraulic braking control system, pressure and the flow of hydraulic oil is controlled by the torque and rotating speed directly controlling motor, thus reach accurately to control the purpose of brake force, fast response time and hydraulic system are exerted oneself greatly, and have the lightweight advantage of compact conformation.Electricity drives hydraulic braking control system and avoids high-precision oil pressure electromagnetic valve, hydraulic oil pump and complex pipeline in brake fluid system simultaneously so that whole system is easily maintained, and breaking down can quick self diagnosis.Compared with Pneumatic brake systems, this utility model directly controls motor driven liquid pressure brake by electric mechanical braking control mode and realizes braking, improves the braking response time；Compared with conventional hydraulic brakes, this utility model directly controls motor driven liquid pressure brake by electric mechanical braking control mode and realizes braking, substituted for oil pressure electromagnetic valve, improves reliability, it is easy to fault diagnosis.
Accompanying drawing explanation
Fig. 1 is system structure principle schematic of the present utility model.
Fig. 2 is this utility model principle schematic in concrete application example 1.
Fig. 3 is this utility model principle schematic in concrete application example 2.
Fig. 4 is this utility model principle schematic in concrete application example 3.
Marginal data:
1, electronic brake control unit；2, motor driven liquid pressure device；3, liquid braking device；4, TCN；21, drive and control of electric machine unit；5, Electric instruction；22, motor；23, machine liquid shifter；24, battery.
Detailed description of the invention
Below with reference to Figure of description and specific embodiment, this utility model is described in further details.
As shown in Figure 1, track traffic electricity of the present utility model drives hydraulic braking control system, including electronic brake control unit 1, motor driven liquid pressure device 2 and liquid braking device 3, electronic brake control unit 1 is received braking instruction by TCN 4 and is carried out braking force distribution and control, electronic brake control unit 1 carries out data interaction by braking Intranet with motor driven liquid pressure device 2, brake force request is converted into hydraulic pressure signal by motor driven liquid pressure device 2, hydraulic pressure signal drive liquid braking device 3 execution.
In the present embodiment, motor driven liquid pressure device 2 includes drive and control of electric machine unit 21, motor 22, machine liquid shifter 23 and battery 24；Motor driven liquid pressure device 2, after the brake force receiving electronic brake control unit 1 is asked, is controlled moment and the speed of motor 22 by drive and control of electric machine unit 21, exports corresponding hydraulic pressure signal by machine liquid shifter 23 and drives liquid braking device 3 action.Further, in preferred embodiment, it is also possible to pressure transducer is set, by pressure transducer, hydraulic pressure signal is fed back to drive and control of electric machine unit 21, form closed loop control.That is: directly driven by motor 22 hydraulic mechanism to produce pressure oil, utilize pressure oil that the brake unit of vehicle is driven, produce brake force with the wheel to vehicle；That is, described pressure oil promotes brake block to compress wheel to produce brake force in entering the foundation brake unit of vehicle.In preferably example, this utility model uses electricity to drive hydraulic braking mode, can form multistage closed loop control, improve the control accuracy of brake force between motor 22 inside and motor 22 and machine liquid shifter 23.Compared with air pressure and brake fluid system, this utility model eliminates a series of pneumatic/hydraulic control valve and relevant pipeline, simplifies system structure, decreases leakage point, improves the reliability and maintainability of system.Meanwhile, electricity drives the system of hydraulic braking mode and controls the change of brake pressure by controlling the torque of motor 22, and therefore system can reach ms rank to the response speed of brake pressure variations.
In the present embodiment, the relevant control instruction of train is reached braking control system as major control instruction transmission medium by TCN 4, the most also state and the fault-signal of braking control system is reported to train central controller or driver；That is, the control for brake of permutation car is realized by train network.
Conventional or fast braking instruction is transferred to often save the electronic brake control unit 1 of car, electronic brake control unit 1, according to the brake force needed for braking rank (instruction) and the calculating of vehicle load signal, then distributes electric braking force and friction brake force according to the size of train electrical stopping power；The principle of distribution is to make full use of electric braking force (herein it should be noted that present embodiment is for the vehicle with electric braking ability.When the brake force that electric braking provides, not or during fault, required brake force is undertaken by frictional damping mode).Frictional damping force signal is converted into corresponding hydraulic pressure by electronic brake control unit 1 by motor driven liquid pressure device 2 by friction brake force, and hydraulic pressure signal controls liquid braking device 3 action and produces friction brake force.
As in figure 2 it is shown, be this utility model principle schematic in concrete application example 1, i.e. drive the train marshalling list exemplary plot of the train control system of brake fluid system based on electricity.By train network, by often saving, vehicle draws, the information of control for brake feeds back to the network control system of vehicle of band driver's control room, it is achieved to permutation car logic control, train function for monitoring and train diagnostic function.When TCN 4 breaks down, train enters urgent traction state by traction instruction urgent in Electric instruction 5, and train braking uses fixing level to be controlled by electronic brake control unit 1.
Brake hard loop also instructs one of 5 signals for Electric, during brake hard loop dead electricity, electronic brake control unit 1 gathers emergency brake signal, brake hard loop will directly trigger motor driven liquid pressure device 2 and implement brake hard, motor driven liquid pressure device 2 is according to the Emergency Negative Thrust needed for brake hard (instruction) and the calculating of vehicle load signal, brake hard force signal is converted into corresponding hydraulic pressure by motor driven liquid pressure device 2, and hydraulic pressure signal controls liquid braking device 3 action and produces friction brake force.
As it is shown on figure 3, be this utility model principle schematic in concrete application example 2, i.e. the electricity of trailer drives the exemplary plot of hydraulic braking control system.As shown in Figure 4, for this utility model principle schematic in concrete application example 3, i.e. the electricity of motor-car drives the exemplary plot of hydraulic braking control system.Wherein, trailer vehicles uses axial plane brake disc to be braked, and motor-car uses wheel face brake disc to be braked.The brake clamp installed on every axle is controlled by same motor driven liquid pressure device 2, electronic brake control unit 1 controls multiple motor driven liquid pressure device 2 simultaneously, brake force request is converted into hydraulic pressure signal by motor driven liquid pressure device 2, liquid braking device 3 action is driven by hydraulic pressure signal, wherein, liquid braking device 3 has passive type clamp and active clamp two class, and part axle is implemented braking by passive type clamp, and part axle is implemented braking by active clamp.Motor driven liquid pressure device 2 is not output in the case of dead electricity, and active clamp is in release of brake state, and passive type clamp is in braking applying state.Passive type clamp can be controlled directly triggering motor driven liquid pressure device 2 by parking brake instruction by Electric instruction 5 enforcement, parking brake instruction, it is achieved parking brake is implemented and mitigation capability.
In summary, this utility model is to drive hydraulic braking control system by a kind of electricity to realize the control for brake to rail traffic vehicles, is realized the control for brake of permutation car by TCN 4.Traditional train brake control system mainly uses Pneumatic brake systems or brake fluid system.Compared with Pneumatic brake systems, this utility model directly controls motor driven liquid pressure brake 3 by electric mechanical braking control mode and realizes braking, improves the braking response time；Compared with conventional hydraulic brakes, this utility model directly controls motor driven liquid pressure brake 3 by electric mechanical braking control mode and realizes braking, substituted for controlling servo valve, improves reliability, it is easy to fault diagnosis.
Below being only preferred implementation of the present utility model, protection domain of the present utility model is not limited merely to above-described embodiment, and all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model.It should be pointed out that, for those skilled in the art, without departing from the some improvements and modifications under this utility model principle premise, should be regarded as protection domain of the present utility model.
Claims (5)
1. a track traffic electricity drives hydraulic braking control system, it is characterized in that, including electronic brake control unit (1), motor driven liquid pressure device (2) and liquid braking device (3), described electronic brake control unit (1) receives braking instruction by TCN (4) and carries out braking force distribution and control, described electronic brake control unit (1) carries out data interaction by braking Intranet with motor driven liquid pressure device (2), brake force request is converted into hydraulic pressure signal by described motor driven liquid pressure device (2), liquid braking device (3) execution is driven by hydraulic pressure signal.
Track traffic electricity the most according to claim 1 drives hydraulic braking control system, it is characterized in that, described motor driven liquid pressure device (2) includes drive and control of electric machine unit (21), motor (22) and machine liquid shifter (23), described motor driven liquid pressure device (2) is after the brake force receiving electronic brake control unit (1) is asked, controlled moment and the speed of motor (22) by described drive and control of electric machine unit (21), export corresponding hydraulic pressure signal by described machine liquid shifter (23) and drive liquid braking device (3) action.
Track traffic electricity the most according to claim 2 drives hydraulic braking control system, it is characterized in that, described motor driven liquid pressure device (2) also includes pressure transducer, by pressure transducer, hydraulic pressure signal is fed back to drive and control of electric machine unit (21), forms closed loop control.
Track traffic electricity the most according to claim 3 drives hydraulic braking control system, it is characterised in that described pressure transducer is used for the feedback signal of Real-time Collection machine liquid shifter (23), and this feedback signal includes pressure and/or flow.
5. drive hydraulic braking control system according to the track traffic electricity described in claim 1 or 2 or 3 or 4, it is characterized in that, the relevant control instruction of train is reached braking control system as control instruction transmission medium by described TCN (4), the most also state and the fault-signal of braking control system is reported to train central controller or driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620201058.7U CN205417587U (en) | 2016-03-16 | 2016-03-16 | Track traffic electricity drives hydraulic braking control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620201058.7U CN205417587U (en) | 2016-03-16 | 2016-03-16 | Track traffic electricity drives hydraulic braking control system |
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| CN205417587U true CN205417587U (en) | 2016-08-03 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105620448A (en) * | 2016-03-16 | 2016-06-01 | 株洲南车时代电气股份有限公司 | Rail transit electric drive hydraulic brake control system |
| CN106080570A (en) * | 2016-08-29 | 2016-11-09 | 中车大连机车车辆有限公司 | Locomotive parking brake control system and control method thereof |
| WO2020077687A1 (en) * | 2018-10-19 | 2020-04-23 | 中车唐山机车车辆有限公司 | Micro-rail vehicle, and braking system and braking method therefor |
| CN111252047A (en) * | 2020-02-25 | 2020-06-09 | 中车株洲电力机车有限公司 | Rail vehicle and brake control system thereof |
| CN111824092A (en) * | 2019-04-15 | 2020-10-27 | 中车株洲电力机车研究所有限公司 | Multi-master real-time hot standby redundant braking force distribution method and system |
-
2016
- 2016-03-16 CN CN201620201058.7U patent/CN205417587U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105620448A (en) * | 2016-03-16 | 2016-06-01 | 株洲南车时代电气股份有限公司 | Rail transit electric drive hydraulic brake control system |
| CN106080570A (en) * | 2016-08-29 | 2016-11-09 | 中车大连机车车辆有限公司 | Locomotive parking brake control system and control method thereof |
| CN106080570B (en) * | 2016-08-29 | 2019-06-07 | 中车大连机车车辆有限公司 | Locomotive parking brake control method |
| WO2020077687A1 (en) * | 2018-10-19 | 2020-04-23 | 中车唐山机车车辆有限公司 | Micro-rail vehicle, and braking system and braking method therefor |
| CN111824092A (en) * | 2019-04-15 | 2020-10-27 | 中车株洲电力机车研究所有限公司 | Multi-master real-time hot standby redundant braking force distribution method and system |
| CN111824092B (en) * | 2019-04-15 | 2021-12-28 | 湖南中车智行科技有限公司 | Multi-master real-time hot standby redundant braking force distribution method and system |
| CN111252047A (en) * | 2020-02-25 | 2020-06-09 | 中车株洲电力机车有限公司 | Rail vehicle and brake control system thereof |
| CN111252047B (en) * | 2020-02-25 | 2021-11-16 | 中车株洲电力机车有限公司 | Rail vehicle and brake control system thereof |
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Address after: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee after: ZHUZHOU CRRC TIMES ELECTRIC Co.,Ltd. Address before: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee before: ZHUZH CSR TIMES ELECTRIC Co.,Ltd. |