CN102935846B - Braking system of railway vehicle and control method thereof - Google Patents
Braking system of railway vehicle and control method thereof Download PDFInfo
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- CN102935846B CN102935846B CN201210524205.0A CN201210524205A CN102935846B CN 102935846 B CN102935846 B CN 102935846B CN 201210524205 A CN201210524205 A CN 201210524205A CN 102935846 B CN102935846 B CN 102935846B
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Abstract
The invention discloses a braking system of a railway vehicle and a control method thereof, and aims to solve the problem that in the prior art, when the railway vehicle adopts a hydraulic braking system or gas-to-liquid type braking system, the requirements for the performance of hydraulic oil at various temperatures and the leak tightness of pipelines are higher. The braking system comprises a gas pressurization device, a basic braking device and a control device, wherein one end of the gas pressurization device is connected with the basic braking device, and the other end of the gas pressurization device is connected with the control device, so that a controlled device is controlled to increase the pressure of a braking clamp of the vehicle to the level required by braking; and the control device is used for controlling the gas pressurization device to conduct a braking pressurization gas path after receiving an external braking command, receiving pressure information of the braking clamp returned by the pressurization device, and controlling the pressurization device to close the braking pressurization gas path when the pressure of the braking clamp reaches the level required by braking. Compared with the pressurization mode of the railway vehicle in the prior art, the braking system is safer, more reliable and more environment-friendly.
Description
Technical field
The present invention relates to car brakeing field, in particular to a kind of brake system and control method of guideway vehicle.
Background technology
Middle low speed magnetic suspension train eliminates wheel, and vehicle suspension to certain altitude, is realized braking procedure by electric braking and mechanical braking combined action during braking by the suction of dependence electromagnetism.Wherein, mechanical braking is the wing limit generation friction force realization braking being close to F rail by brake clamp.Because of by the restriction of locus, clamp structure size is relatively little, and based on the consideration of vehicle safety, the requirement of vehicle to braking deceleration is higher.Simultaneously, it is little that the wind regime of general motor vehicle braking system acts on the braking force that clamp produces, be difficult to the requirement meeting braking deceleration, therefore domestic and international magnetic suspension train generally adopts fluid pressure type brake system or cyclostrophic liquid formula brake system at present, brake clamp is made to obtain enough hydraulic pressures, to meet required braking force.
The stability of magnetic suspension train deceleration and stopping performance is directly connected to the safety of vehicle operating, therefore the leak tightness of the performance of hydraulic oil under the conditions such as various temperature, pipeline etc. require very high.Need adopt special braking liquid, and special braking liquid cost is high, and pipeline is once leak, and safeguards very difficult to it.If the supplementary deficiency of braking liquid will cause braking force to decline, thus affect vehicle operating safety, and due to the leakage of braking liquid, also pollute the environment.
Summary of the invention
The invention provides a kind of brake system and control method of guideway vehicle, for solving in prior art, when guideway vehicle adopts fluid pressure type brake system or cyclostrophic liquid formula brake system, the problem higher to the sealing requirements of hydraulic oil performance at various temperatures and pipeline.
According to an aspect of the present invention, provide a kind of brake system of guideway vehicle, comprising:
Gas pressurized device, foundation brake rigging and control setup; One end of gas pressurized device is connected with foundation brake rigging, and the other end is connected with control setup, and the pressure of the brake clamp of vehicle is increased to the required pressure of braking by the control for controlled device; Control setup, for controlling gas pressurized device conducting braking supercharging gas circuit after receiving outer brake instruction, receive the pressure information of the brake clamp that pressurizer returns, when the pressure of brake clamp reaches pressure needed for braking, control pressurizer and close braking supercharging gas circuit.
Further, said system also comprises: rescue bracing or strutting arrangement, and rescue bracing or strutting arrangement is connected with gas pressurized device, comprises support wheel and rescue control unit; Rescue control unit, supercharging gas circuit is supported for controlling gas pressurized device conducting rescue after receiving external rescue instruction, receive the pressure information of the support wheel that pressurizer returns, when the pressure of support wheel makes support wheel prop up, control pressurizer and close rescue support supercharging gas circuit.
Wherein, above-mentioned gas pressurizer and support wheel become one.
Wherein, above-mentioned gas pressurizer comprises: gas pressure increasing cylinder and pressure feedback parts; The pressure that gas pressure increasing cylinder is used for needed for the load-carrying of vehicle and braking carries out supercharging; Pressure feedback parts are used for when the pressure of brake clamp is increased to the required pressure of braking by gas pressure increasing cylinder, or when the pressure of support wheel being increased to pressure that support wheel props up, by the force information back of brake clamp or support wheel to control setup.
Wherein, above-mentioned pressure feedback parts comprise: pressure switch and pressure feedback circuit; Pressure switch is used for when the pressure of brake clamp is increased to the required pressure of braking, or the pressure of support wheel is increased to support wheel when propping up, and the pressure information of brake clamp or support wheel is converted to electric signal and sends to control setup.
Wherein, above-mentioned gas pressurizer and brake clamp become one.
According to another aspect of the present invention, provide a kind of brake control method of guideway vehicle, comprising:
After receiving outer brake instruction, control gas pressurized device conducting braking supercharging gas circuit; The pressure information of the brake clamp that receiver gases pressurizer returns; When the pressure of brake clamp reaches pressure needed for braking, control gas pressurized device and close braking supercharging gas circuit.
Further, said method also comprises: after receiving external rescue instruction, controls gas pressurized device conducting rescue and supports supercharging gas circuit; The pressure information of the support wheel that receiver gases pressurizer returns; When the pressure of support wheel reaches pressure when making support wheel prop up, control pressurizer and close rescue support supercharging gas circuit.
Wherein, above-mentioned control gas pressurized device conducting braking supercharging gas circuit comprises: the pressure needed for vehicle load and braking is pressurizer assignment system power, carries out supercharging to make the pressurized cylinder of pressurizer according to braking force to brake clamp; Control gas pressurized device conducting rescue support supercharging gas circuit to comprise: the pressure needed for supporting according to rescue is that pressurizer distributes bearing force, carries out supercharging to make the pressurized cylinder of pressurizer according to bearing force to support wheel.
Further, said method also comprises: the pressure information of the pressure information and support wheel that gas are increased the brake clamp that device returns is sent to far-end monitoring system by communication network.Technical scheme of the present invention, solution-air pressurized cylinder in the cyclostrophic liquid formula brake system of track train of the prior art or fluid pressurization cylinder is instead of with gas pressurized device, only realize supercharging with air, solve in prior art problem higher to the sealing requirements of hydraulic oil performance at various temperatures and pipeline when adopting the supercharging mode of cyclostrophic liquid formula, with in prior art to more safe and reliable compared with the supercharging mode of guideway vehicle, also environmental protection more simultaneously.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the brake system of guideway vehicle of the present invention;
Fig. 2 is the principle of work schematic diagram of the brake system of guideway vehicle of the present invention;
Fig. 3 is the diagram of circuit of the brake control method of guideway vehicle of the present invention.
Detailed description of the invention
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in further detail the embodiment of the present invention below in conjunction with the drawings and specific embodiments.
The object of the invention is to, replace hydraulic pressure or cyclostrophic fluid pressure type brake system with Pneumatic brake systems, make guideway vehicle train more safe and reliable, environmental protection more.
Fig. 1 is the structured flowchart of the brake system of guideway vehicle of the present invention.
As shown in Figure 1, the brake system 10 of this guideway vehicle comprises following component part:
Gas pressurized device 11, foundation brake rigging 12 and control setup 13;
Wherein one end of gas pressurized device 11 is connected with foundation brake rigging 12, and the other end is connected with control setup 13, and the pressure of car brakeing clamp is increased to the required pressure of braking by the control for controlled device 13;
Control setup 13, for controlling gas pressurized device 11 conducting braking supercharging gas circuit after receiving outer brake instruction, receive the pressure information of the brake clamp that pressurizer 11 returns, when the pressure of brake clamp reaches pressure needed for braking, control pressurizer and close braking supercharging gas circuit.
Wherein, above-mentioned brake system 10 is adapted to city railway vehicle, is particularly useful for maglev vehicle.
The situation being applied to maglev vehicle with this system 10 is below described in detail to this brake system:
Wherein, system 10 can also comprise:
Rescue bracing or strutting arrangement, rescue bracing or strutting arrangement is connected with above-mentioned gas pressurizer, comprises support wheel and rescue control unit; Wherein, rescue control unit is used for after receiving external rescue instruction, control gas pressurized device conducting rescue and supports supercharging gas circuit, receive the pressure information of the support wheel that pressurizer returns, when the pressure of support wheel makes support wheel prop up, control pressurizer and close rescue support supercharging gas circuit.
Wherein, above-mentioned gas pressurizer comprises: gas pressure increasing cylinder and pressure feedback parts; The pressure that gas pressure increasing cylinder is used for needed for the load-carrying of vehicle and braking carries out supercharging; Pressure feedback parts are used for when the pressure of brake clamp is increased to the required pressure of braking by gas pressure increasing cylinder, or when the pressure of support wheel being increased to pressure that support wheel props up, by the force information back of brake clamp or support wheel to control setup.
Wherein, above-mentioned pressure feedback parts comprise: pressure switch and pressure feedback circuit; Pressure switch is used for when the pressure of brake clamp is increased to the required pressure of braking, or the pressure of support wheel is increased to support wheel when propping up, transfer pressure feedback circuit to closure state by off-state, and by this pressure feedback circuit, the pressure information of brake clamp or support wheel is converted to electric signal and sends to control setup.
In order to save the space of each parts on vehicle, above-mentioned gas pressurizer can be independently parts, also can become one with brake clamp or with support wheel.
Fig. 2 is the principle of work schematic diagram of the brake system of guideway vehicle of the present invention.
To set forth according to the principle of work of this principle schematic to above-mentioned brake system below:
Wherein, the double solid line in figure represents gas circuit, and dotted line represents electric control hard signal, and two electricity line represents network control signal, and long and short dash line represents feedback signal.
First the effect of parts each in figure is introduced one by one:
Air supply device is used for providing required drying, clean wind regime for Braking system, support wheel support, air bellow, blow a whistle etc. consumes wind part.
Horn device, by this horn device, the button of blowing a whistle on driver operation driving position, indicates that train passes through, to arouse attention.
Control setup for receive external instruction control the braking of vehicle, alleviation and support wheel support, to pack up etc., the monitoring situations such as braking conditions, support wheel situation, fault fed back to network simultaneously.
Suspension gear mainly comprises air bellow, levelling valve, adjust bar, storage reservoir etc.Air bellow is installed between car body and hanger bracket, by the pressure filling gas exhaust inspecting spring of levelling valve, keeps the balance of the constant and left and right of each load-carrying lower body height.
Gas pressurized device is used for the initial pressure of brake clamp, support wheel to be increased to required Intermediate High Pressure.
Wherein, foundation brake rigging mainly comprises brake clamp, lever connection, storage reservoir etc.
Rescue bracing or strutting arrangement mainly comprises support wheel, oil cylinder, storage reservoir etc.
Wherein, the air supply device shown in figure, horn device, integrated controller device, suspension gear (not containing air bellow), gas pressurized device are installed on vehicle body bottom frame.Foundation brake rigging, rescue bracing or strutting arrangement and air bellow are installed on suspension rack.
On vehicle after electro activation, control setup or pressure switch detect that the pressure of wind in vehicle supervisor is lower than after setting value, starts the compressor operation of air supply device, to total reservoir of vehicle, each storage reservoir and air bellow air feed.
When vehicle needs to brake, after control setup receives braking instruction, carry out brakig force distribution according to vehicle weight, braking level and electric braking priority principle.Control the supercharging gas circuit conducting of gas pressurized device simultaneously, inflate to the brake clamp of foundation brake rigging, after the gas in brake clamp reaches certain pressure, pressurized cylinder in gas pressurized device carries out supercharging according to vehicle weight and braking level to the gas in brake clamp, simultaneously by the force information back of brake clamp to control setup, after the pressure of brake clamp reaches the pressure needed for braking, control setup cuts off braking supercharging gas circuit, brake clamp, with suitable application force clamping F rail, realizes braking function.
When suspension disabler, train needs to be risen by support wheel, walks in-orbit on face, arrive Hui Ku behind the next stop under outside or self traction.When needs rescue supports, the rescue controlled in gas pressurized device, once receive support wheel supporting order, is supported the conducting of supercharging gas circuit, vehicle is risen under the supporting role of support wheel, realize the rescue function that support wheel runs by control setup.
Fig. 3 is the diagram of circuit of the braking supercharging control method of guideway vehicle of the present invention.
As shown in Figure 3, the method comprises the following steps:
Step 301: after receiving outer brake instruction, controls gas pressurized device conducting braking supercharging gas circuit;
Step 302: the pressure information receiving the brake clamp that pressurizer returns;
Step 303: when the pressure of brake clamp reaches pressure needed for braking, controls pressurizer and closes braking supercharging gas circuit.
Further, after execution above-mentioned steps, following steps can also be performed:
After receiving external rescue instruction, control gas pressurized device conducting rescue and support supercharging gas circuit;
Receive the pressure information of the support wheel that pressurizer returns;
When the pressure of support wheel reach support wheel is propped up time, control pressurizer and close rescue and support supercharging gas circuit.
Wherein, above-mentionedly can to comprise controlling gas pressurized device conducting braking supercharging gas circuit: the pressure needed for vehicle load and braking is pressurizer assignment system power, carries out supercharging to make the pressurized cylinder of pressurizer according to braking force to brake clamp.
Wherein, above-mentionedly support supercharging gas circuit in control gas pressurized device conducting rescue and can comprise: be that pressurizer distributes bearing force according to the rescue supporting order of vehicle, according to bearing force, supercharging is carried out to support wheel to make the pressurized cylinder of pressurizer.
Further, said method can also comprise: the pressure information of brake clamp return increase device and the pressure information of support wheel are sent to far-end monitoring system by communication network.
Technical scheme of the present invention, solution-air pressurized cylinder in the cyclostrophic liquid formula brake system of track train of the prior art or fluid pressurization cylinder is instead of with gas pressurized device, the function that hydraulic oil realizes supercharging is instead of with air, solve in prior art problem higher to the sealing requirements of hydraulic oil performance at various temperatures and pipeline when adopting the supercharging mode of cyclostrophic liquid formula, and with in prior art to more safe and reliable compared with the supercharging mode of guideway vehicle, also energy-conserving and environment-protective more simultaneously.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.
Claims (8)
1. a brake system for guideway vehicle, is characterized in that, comprising:
Gas pressurized device, foundation brake rigging and control setup;
One end of described gas pressurized device is connected with described foundation brake rigging, and the other end is connected with described control setup, for the control by described control setup, the pressure of the brake clamp of vehicle is increased to the required pressure of braking; And, the pressure information of described brake clamp is returned to described control setup;
Described control setup, for controlling described gas pressurized device conducting braking supercharging gas circuit after receiving outer brake instruction, receive the pressure information of the described brake clamp that described pressurizer returns, when the pressure of described brake clamp reaches pressure needed for braking, control described pressurizer and close braking supercharging gas circuit, described brake clamp, with suitable application force clamping F rail, realizes braking;
Rescue bracing or strutting arrangement, described rescue bracing or strutting arrangement is connected with described gas pressurized device, comprises support wheel and rescue control unit;
Described rescue control unit, supercharging gas circuit is supported for controlling described gas pressurized device conducting rescue after receiving external rescue instruction, receive the pressure information of the described support wheel that described pressurizer returns, when the pressure of described support wheel makes described support wheel prop up, control described pressurizer and close rescue support supercharging gas circuit.
2. system according to claim 1, is characterized in that, described gas pressurized device and described support wheel become one.
3. system according to claim 1, is characterized in that, described gas pressurized device comprises:
Gas pressure increasing cylinder and pressure feedback parts;
The pressure that described gas pressure increasing cylinder is used for needed for the load-carrying of described vehicle and braking carries out supercharging;
Described pressure feedback parts are used for when the pressure of described brake clamp is increased to the required pressure of braking by described gas pressure increasing cylinder, or when the pressure of described support wheel being increased to pressure that described support wheel props up, give described control setup by the force information back of described brake clamp or described support wheel.
4. system according to claim 3, is characterized in that, described pressure feedback parts comprise:
Pressure switch and pressure feedback circuit;
Described pressure switch is used for when the pressure of described brake clamp is increased to the required pressure of braking, or the pressure of described support wheel is increased to described support wheel when propping up, the pressure information of described brake clamp or described support wheel is converted to electric signal and sends to described control setup.
5. system according to claim 1, is characterized in that, described gas pressurized device and described brake clamp become one.
6. a brake control method for guideway vehicle, for controlling the system as claimed in claim 1, is characterized in that, comprising:
After receiving outer brake instruction, control described gas pressurized device conducting braking supercharging gas circuit;
Receive the pressure information of the described brake clamp that described gas pressurized device returns;
When the pressure of described brake clamp reaches pressure needed for braking, control described gas pressurized device and close braking supercharging gas circuit, described brake clamp, with suitable application force clamping F rail, realizes braking;
When receiving external rescue instruction, controlling described gas pressurized device conducting rescue and supporting supercharging gas circuit; And, receive the pressure information of the support wheel that described gas pressurized device returns, when the pressure of described support wheel reaches pressure when making described support wheel prop up, control described pressurizer and close rescue support supercharging gas circuit.
7. method according to claim 6, is characterized in that,
Described control described gas pressurized device conducting braking supercharging gas circuit comprises:
Pressure needed for vehicle load and braking is described pressurizer assignment system power, carries out supercharging to make the pressurized cylinder of described pressurizer according to described braking force to described brake clamp;
The described gas pressurized device conducting rescue of described control supports supercharging gas circuit and comprises:
Pressure needed for supporting according to rescue is that described pressurizer distributes bearing force, carries out supercharging to make the pressurized cylinder of described pressurizer according to described bearing force to described support wheel.
8. method according to claim 6, is characterized in that, described method also comprises:
The pressure information of described brake clamp return described gas increase device and the pressure information of described support wheel are sent to far-end monitoring system by communication network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210524205.0A CN102935846B (en) | 2012-12-07 | 2012-12-07 | Braking system of railway vehicle and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210524205.0A CN102935846B (en) | 2012-12-07 | 2012-12-07 | Braking system of railway vehicle and control method thereof |
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| Publication Number | Publication Date |
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| CN102935846A CN102935846A (en) | 2013-02-20 |
| CN102935846B true CN102935846B (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210524205.0A Active CN102935846B (en) | 2012-12-07 | 2012-12-07 | Braking system of railway vehicle and control method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109177985B (en) * | 2018-09-04 | 2020-10-16 | 中车株洲电力机车有限公司 | Supporting structure, maglev train rescue device, suspension frame and maglev train |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1361605A (en) * | 1971-09-21 | 1974-07-30 | Lawrence Son London Ltd W | Apparatus fr advancing rail vehicles through a loading or unloading installation |
| US5785392A (en) * | 1996-02-06 | 1998-07-28 | Westinghouse Air Brake Company | Selectable grade and uniform net shoe force braking for railway freight vehicle |
| CN100475619C (en) * | 2006-06-07 | 2009-04-08 | 吴萌岭 | Microcomputer control simulation type through current air-liquid conversion train braking system |
| CN201220663Y (en) * | 2008-08-14 | 2009-04-15 | 铁道部运输局 | High speed motor train unit braking system |
| CN102602386B (en) * | 2011-01-25 | 2015-05-20 | 中国铁路总公司 | Method and system for braking high-speed train and brake control device |
| CN203005458U (en) * | 2012-12-07 | 2013-06-19 | 南车株洲电力机车有限公司 | Railway vehicle braking system |
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