CN104108403A - Brake control system and method - Google Patents
Brake control system and method Download PDFInfo
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- CN104108403A CN104108403A CN201410351440.1A CN201410351440A CN104108403A CN 104108403 A CN104108403 A CN 104108403A CN 201410351440 A CN201410351440 A CN 201410351440A CN 104108403 A CN104108403 A CN 104108403A
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Abstract
The embodiment of the invention provides a brake control system and method. The brake control system comprises a redundancy electric pneumatic valve, a main blast pipe, a pressure regulating valve, a switching valve, a two-way valve and a brake cylinder pipe, wherein the redundancy electric pneumatic valve is connected with the main blast pipe and the switching value, the switching value is connected with the pressure regulating valve and the two-way valve, the pressure regulating valve is connected with the main blast pipe and the switching valve, and the two-way value is connected with the switching valve and the brake cylinder pipe; when first brake control is performed, the pressure regulating valve regulates the pressure of the main blast pipe to be identical with the pilot pressure of a brake cylinder, the redundancy electric pneumatic valve is powered on to enable the switching value to output pressure transmitted by the main blast pipe, and the two-way valve transmits pressure output by the switching value to the brake cylinder pipe under the action of the pressure output by the switching value to enable the pressure of the brake cylinder to reach the pilot pressure of the brake cylinder. The brake control system provided by the embodiment achieves locomotive brake control without a distribution valve, and a brand new locomotive control mode is provided.
Description
Technical field
The present invention relates to locomotive brake technical field, more particularly, relate to a kind of braking control system and brake control method.
Background technology
Brake cylinder is the parts that play brake action in locomotive, and taking rail locomotive and engineering truck as example, the brake cylinder of rail locomotive and engineering truck is the critical component that ensures track traffic safety, and therefore the safety of brake cylinder control, reliability and stability seem particularly important.
At present the braking control principle of locomotive is mainly, and makes brake-cylinder pressure reach within a certain period of time brake cylinder pilot pressure to realize the braking control of locomotive.Based on above-mentioned principle, the major part of existing locomotive brake control system is distributing valve; In the time carrying out locomotive brake, make brake-cylinder pressure reach brake cylinder pilot pressure by distributing valve, realize the braking control of locomotive.
Existing locomotive brake mode is mainly by being used single assigned valve to complete the braking control of locomotive, and without other brake control modes, if in the time that distributing valve lost efficacy, the braking control of locomotive cannot complete, and this brings the safe operation of giving locomotive to have a strong impact on.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of braking control system and brake control method, to solve prior art mainly by using single assigned valve to complete the braking control of locomotive, and without other brake control modes, it is existing in the time that distributing valve lost efficacy, the braking control of locomotive cannot complete, and bring the problem having a strong impact on to the safe operation of locomotive.
For achieving the above object, the embodiment of the present invention provides following technical scheme:
A kind of braking control system, comprising: redundancy electropneumatic valve, blast main, pressure regulating valve, transfer valve, two-way valve and braking earthen pipe;
Wherein, described redundancy electropneumatic valve connects described blast main and described transfer valve, described transfer valve connects described pressure regulating valve and described two-way valve, and described pressure regulating valve connects described blast main and described transfer valve, and described two-way valve connects described transfer valve and described braking earthen pipe;
In the time carrying out the first braking control, described pressure regulating valve is adjusted into the pressure of described blast main consistent with brake cylinder pilot pressure, described redundancy electropneumatic valve powers on, so that described transfer valve is exported the pressure that described blast main conducts, described two-way valve is under the effect of described transfer valve institute delivery pressure, described transfer valve institute delivery pressure is conducted into described braking earthen pipe, so that brake-cylinder pressure reaches brake cylinder pilot pressure.
Wherein, described two-way valve comprises the first port and the second port;
Described the first port is by described transfer valve, and described pressure regulating valve is connected with described blast main, and described the second port is connected with described braking earthen pipe, and described the first port and the second port are connected under the effect of described transfer valve delivery pressure.
Wherein, described braking control system also comprises: the first conduit of brake cylinder and distributing valve, and the first conduit of described brake cylinder joins by described distributing valve and described two-way valve;
In the time carrying out the second braking control, described redundancy electropneumatic valve removes electricity, described distributing valve is exported the pressure of the first conduit conduction of described brake cylinder, described distributing valve institute delivery pressure is conducted into described braking earthen pipe by described two-way valve, so that brake-cylinder pressure reaches brake cylinder pilot pressure, the same time of described two-way valve can only be conducted into described braking earthen pipe by described transfer valve delivery pressure, or described distributing valve delivery pressure is conducted into described braking earthen pipe.
Wherein, described two-way valve comprises the first port, the second port and the 3rd port;
Described the first port is by described transfer valve, and described pressure regulating valve is connected with described blast main, and described the second port is connected with described braking earthen pipe, and described the 3rd port is connected by the first conduit of described distributing valve and described brake cylinder;
Described the first port and the second port are connected under the effect of described transfer valve delivery pressure, described the second port and described the 3rd port are connected under the control of described distributing valve, and described the second same time of port can only be connected with in described the first port and described the 3rd port.
Wherein, described braking control system also comprises: detect the first pressure sensor of the first catheter pressure of brake cylinder, detect the second pressure sensor of described brake cylinder pipe pressure, and controller;
Described controller, for receiving the brake cylinder pilot pressure of described the first pressure sensor transmission and the brake-cylinder pressure of described the second pressure sensor transmission, do not reach within a certain period of time described brake cylinder pilot pressure at described brake-cylinder pressure, while carrying out the first braking control, controlling described redundancy electropneumatic valve powers on, so that described transfer valve is exported the pressure that described blast main conducts, described two-way valve is under the effect of described transfer valve institute delivery pressure, described transfer valve institute delivery pressure is conducted into described braking earthen pipe, so that brake-cylinder pressure reaches brake cylinder pilot pressure.
Wherein, described controller, also for, while carrying out the second braking control, control described redundancy electropneumatic valve and remove electricity, described distributing valve is exported the pressure of the first conduit conduction of described brake cylinder, so that described distributing valve institute delivery pressure is conducted into described braking earthen pipe by described two-way valve, make brake-cylinder pressure reach brake cylinder pilot pressure, the same time of described two-way valve can only be conducted into described braking earthen pipe by described transfer valve delivery pressure, or described distributing valve delivery pressure is conducted into described braking earthen pipe.
The embodiment of the present invention also provides a kind of brake control method, and based on braking control system described above, described method is applied to controller, and described method comprises:
Judge whether brake-cylinder pressure reaches brake cylinder pilot pressure;
In the time that described brake-cylinder pressure does not reach described brake cylinder pilot pressure within a certain period of time, carry out the first braking control, send the first instruction, described the first instruction is adjusted into the pressure of blast main consistent with brake cylinder pilot pressure for controlling pressure regulating valve;
Send the second instruction, described the second instruction is used for controlling redundancy electropneumatic valve and carries out upper electric treatment, so that the pressure that transfer valve output blast main conducts, two-way valve is under the effect of transfer valve institute delivery pressure, transfer valve institute delivery pressure is conducted into braking earthen pipe, so that brake-cylinder pressure reaches brake cylinder pilot pressure.
Wherein, describedly judge whether brake-cylinder pressure reaches brake cylinder pilot pressure and comprise:
Receive the brake cylinder pilot pressure of the first pressure sensor transmission that detects the first catheter pressure of brake cylinder, and detect the brake-cylinder pressure of the second pressure sensor transmission of described brake cylinder pipe pressure;
Judge the brake-cylinder pressure of described the second pressure sensor transmission, whether reach the brake cylinder pilot pressure of described the first pressure sensor transmission.
Wherein, described the first instruction carries the brake cylinder pilot pressure of described the first pressure sensor transmission, consistent with the brake cylinder pilot pressure carrying in described the first instruction so that pressure regulating valve is adjusted into the pressure of described blast main.
Wherein, described brake control method also comprises:
Carry out the second braking control, send the 3rd instruction and the 4th instruction, described the 3rd instruction is used for controlling redundancy electropneumatic valve and removes electricity, described the 4th instruction is for controlling the pressure of the first conduit conduction of distributing valve output brake cylinder, so that described distributing valve institute delivery pressure is conducted into described braking earthen pipe by described two-way valve, make brake-cylinder pressure reach brake cylinder pilot pressure, the same time of described two-way valve can only be conducted into described braking earthen pipe by described transfer valve delivery pressure, or described distributing valve delivery pressure is conducted into described braking earthen pipe.
Based on technique scheme, the braking control system that the embodiment of the present invention provides, by redundancy electropneumatic valve is set, blast main, pressure regulating valve, transfer valve, two-way valve and braking earthen pipe, in the time braking control, the pressure of blast main is adjusted into consistent with brake cylinder pilot pressure by pressure regulating valve, redundancy electropneumatic valve is powered on, so that the pressure that transfer valve output blast main conducts, make two-way valve under the effect of transfer valve institute delivery pressure, transfer valve institute delivery pressure is conducted into braking earthen pipe, so that brake-cylinder pressure reaches brake cylinder pilot pressure, realize the object that braking is controlled.The braking control system that the embodiment of the present invention provides does not relate to the use of distributing valve, control diverse brake control mode and be to provide a kind of braking with use distributing valve, therefore in the time that distributing valve lost efficacy, the braking control system that the embodiment of the present invention provides also can complete the braking control of locomotive, solve prior art existing in the time that distributing valve lost efficacy, the braking control of locomotive cannot complete, and bring the problem having a strong impact on to the safe operation of locomotive.The braking control system that the embodiment of the present invention provides, has realized the locomotive brake control that does not adopt distributing valve, and a kind of brand-new locomotive brake mode is provided.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
The structural representation of the braking control system that Fig. 1 provides for the embodiment of the present invention;
Another structural representation of the braking control system that Fig. 2 provides for the embodiment of the present invention;
A structural representation again of the braking control system that Fig. 3 provides for the embodiment of the present invention;
The another structural representation of the braking control system that Fig. 4 provides for the embodiment of the present invention;
The another another structural representation of the braking control system that Fig. 5 provides for the embodiment of the present invention;
The diagram of circuit of the brake control method that Fig. 6 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The structural representation of the braking control system that Fig. 1 provides for the embodiment of the present invention, the brake control mode of the braking control system shown in this structure, the mode of braking control with existing employing distributing valve is not identical, with reference to Fig. 1, this braking control system can comprise: redundancy electropneumatic valve 10, blast main 20, pressure regulating valve 30, transfer valve 40, two-way valve 50 and braking earthen pipe 60;
As shown in Figure 1, redundancy electropneumatic valve 10 connects blast main 20 and transfer valve 40, and transfer valve 40 connects pressure regulating valve 30 and two-way valve 50, and pressure regulating valve 30 connects blast main 20 and transfer valve 40, and two-way valve 50 connects transfer valve 40 and braking earthen pipe 60; Optionally, redundancy electropneumatic valve 10 and pressure regulating valve 30 setting that can walk abreast;
The mode that the braking control system that the embodiment of the present invention provides carries out locomotive brake control is:
In the time carrying out the first braking control, pressure regulating valve 30 is adjusted into the pressure of blast main 20 consistent with brake cylinder pilot pressure; Optionally, the embodiment of the present invention can first detect the brake cylinder pilot pressure in the first conduit of brake cylinder, then according to brake cylinder pilot pressure control pressure regulating valve, the pressure of blast main 20 is adjusted into consistent with brake cylinder pilot pressure;
Redundancy electropneumatic valve 10 is carried out to upper electric treatment, make transfer valve 40 export the pressure that blast main 20 conducts under the control of the redundancy electropneumatic valve 10 powering on, and by exported pressure conduction to two-way valve 50, make two-way valve 50 under the effect of 40 delivery pressures of transfer valve, 40 delivery pressures of transfer valve are conducted into braking earthen pipe 60, and the brake-cylinder pressure of realizing in braking earthen pipe reaches brake cylinder pilot pressure.
Optionally, it can, for the emergency braking control of carrying out in the time that the distributing valve of existing braking control system lost efficacy, can be also the normal brake application control of locomotive that the first braking is controlled,
The braking control system that the embodiment of the present invention provides, by redundancy electropneumatic valve is set, blast main, pressure regulating valve, transfer valve, two-way valve and braking earthen pipe, in the time braking control, by pressure regulating valve, the pressure of blast main is adjusted into consistently with brake cylinder pilot pressure, redundancy electropneumatic valve is powered on, so that the pressure that transfer valve output blast main conducts, make two-way valve under the effect of transfer valve institute delivery pressure, transfer valve institute delivery pressure is conducted into braking earthen pipe, so that brake-cylinder pressure reaches brake cylinder pilot pressure, realizes the object that braking is controlled.The braking control system that the embodiment of the present invention provides does not relate to the use of distributing valve, control diverse brake control mode and be to provide a kind of braking with use distributing valve, therefore in the time that distributing valve lost efficacy, the braking control system that the embodiment of the present invention provides also can complete the braking control of locomotive, solve prior art existing in the time that distributing valve lost efficacy, the braking control of locomotive cannot complete, and bring the problem having a strong impact on to the safe operation of locomotive.The braking control system that the embodiment of the present invention provides, has realized the locomotive brake control that does not adopt distributing valve, and a kind of brand-new locomotive brake mode is provided.。
Fig. 2 shows another structural representation of the braking control system that the embodiment of the present invention provides, braking control system shown in Fig. 2 shows the optional structure of one of two-way valve 50, it should be noted that, the structure of two-way valve 50 shown in Fig. 2 is only a kind of optional structure, the embodiment of the present invention is disclosing after the effect of two-way valve 50, and those skilled in the art can also expect the structure of other two-way valve 50 easily; With reference to Fig. 2, two-way valve 50 can comprise: the first port 51 and the second port 52;
Wherein, the first port 51 is by transfer valve 40, and pressure regulating valve 30 is connected with blast main 20, and the second port 52 is connected with braking earthen pipe 60; The mode that the embodiment of the present invention is communicated with braking earthen pipe 60 and blast main 20 by two-way valve 50 can be, under the effect of transfer valve 40 delivery pressures, be communicated with the first port 51 and the second port 52, be conducted into braking earthen pipe 60 to realize 40 delivery pressures of transfer valve, make brake-cylinder pressure reach brake cylinder pilot pressure.
Optionally, the braking control system that the embodiment of the present invention provides can also with existing by distributing valve brake control mode suitable, corresponding, Fig. 3 shows a structural representation again of the braking control system that the embodiment of the present invention provides, shown in Fig. 1 and Fig. 3, braking control system shown in Fig. 3 can also comprise: the first conduit 70 of brake cylinder and distributing valve 80, and the first conduit 70 of brake cylinder joins by distributing valve 80 and two-way valve 50;
The embodiment of the present invention also provides a kind of and controls the second different brake control modes from the first braking, and the second brake control mode mainly completes by distributing valve 80; In the time carrying out the second braking control, the embodiment of the present invention can be gone electric treatment to redundancy electropneumatic valve 10, distributing valve 80 is exported the pressure that the first conduit 70 of brake cylinder conducts, and by two-way valve 50,80 delivery pressures of distributing valve are conducted into braking earthen pipe 60, make brake-cylinder pressure reach brake cylinder pilot pressure; It should be noted that the two-way valve 50 that the embodiment of the present invention provides can only be conducted into transfer valve 40 delivery pressures braking earthen pipe 60 at one time, or distributing valve 80 delivery pressures are conducted into braking earthen pipe 60; Be that two-way valve 50 can only at one time, be conducted into transfer valve 40 delivery pressures braking earthen pipe 60, or distributing valve 80 delivery pressures are conducted in braking earthen pipe 60 these two states and keep a kind of.
Optionally, the first mode described herein and the second mode can be used in conjunction with, and as braked at locomotive, and distributing valve 80 was not while losing efficacy, the embodiment of the present invention can be carried out normal locomotive brake, realizes the braking control of locomotive by the second braking control; And need to brake at locomotive, when distributing valve 80 lost efficacy, the embodiment of the present invention can be carried out emergency braking, realizes the braking control of locomotive by the first braking control.
Optionally, Fig. 4 shows the another structural representation of the braking control system that the embodiment of the present invention provides, braking control system shown in Fig. 4 shows one can only be conducted into transfer valve 40 delivery pressures braking earthen pipe 60 at one time, or by distributing valve 80 delivery pressures be conducted into braking earthen pipe 60 two-way valve 50 structures, it should be noted that, these two-way valve 50 structures are only optional mode, disclose two-way valve 50 in the embodiment of the present invention and transfer valve 40 delivery pressures can only be conducted at one time to braking earthen pipe 60, or distributing valve 80 delivery pressures are conducted into after the effect of braking earthen pipe 60, those skilled in the art also can expect other structures of two-way valve 50 easily, with reference to Fig. 4, this two-way valve 50 can comprise: the first port 51, the second ports 52 and the 3rd port 53,
Wherein, the first port 51 is by transfer valve 40, and pressure regulating valve 30 is connected with blast main 20, and the second port 52 is connected with braking earthen pipe 60, and the 3rd port 53 is connected by the first conduit 70 of distributing valve 80 and brake cylinder;
The embodiment of the present invention is in the time carrying out the first braking control, the first port 51 and the second port 52 can be connected under the effect of 40 delivery pressures of transfer valve, make transfer valve 40 delivery pressures (being blast main 20 pressure) be conducted into braking earthen pipe 60, the brake-cylinder pressure of realizing in braking earthen pipe reaches brake cylinder pilot pressure; In the time carrying out the second braking control, the second port 52 and the 3rd port 53 are connected under the control of distributing valve 80, make distributing valve 80 delivery pressures (the first catheter pressure of brake cylinder) be conducted into braking earthen pipe 60, the brake-cylinder pressure of realizing in braking earthen pipe reaches brake cylinder pilot pressure.Wherein, the second same time of port 52 can only be connected with in the first port 51 and the 3rd port 53.
The concrete mode of braking control system shown in Fig. 4 is chosen as:
In normal brake application situation (the second braking is controlled), distributing valve 80 is normally worked, correctly delivery pressure, make the pressure of the 3rd port 53 of two-way valve 50 be greater than the pressure of the first port 51, thereby the 3rd port 53 of two-way valve 50 is communicated with the second port 52, distributing valve 80 delivery pressures can be conducted into braking earthen pipe 60 like this, the brake-cylinder pressure of realizing in braking earthen pipe reaches brake cylinder pilot pressure, complete locomotive brake, it should be noted that, under the second braking state of a control, redundancy electropneumatic valve 10 is all the time in power failure state;
In the situation that distributing valve 80 lost efficacy, distributing valve 80 is delivery pressure correctly, make brake-cylinder pressure can not reach within a certain period of time brake cylinder pilot pressure, now carry out the first braking control (emergency braking control), the pressure of blast main 20 is adjusted into consistent with brake cylinder pilot pressure by pressure regulating valve 30, and redundancy electropneumatic valve 10 is powered on, make the transfer valve 40 can delivery pressure and act on two-way valve 50, two-way valve 50 under pressure, the pressure of the first port 51 is greater than the pressure of the 3rd port 53, thereby the first port 51 is connected with the second port 52, transfer valve 40 delivery pressures can be conducted into braking earthen pipe 60 like this, the brake-cylinder pressure of realizing in braking earthen pipe reaches brake cylinder pilot pressure, complete the emergency braking of locomotive.
Optionally, the brake control mode of the braking control system that the embodiment of the present invention provides can be by people for controlling, and as manual control pressure regulating valve 30 carries out pressure adjusting, redundancy electropneumatic valve 10 carries out upper electric treatment etc.; Obviously, the brake control mode of the braking control system that the embodiment of the present invention provides also can be realized by automatic control, as realized the upper electric control of redundancy electropneumatic valve 10, the pressure adjusting of pressure regulating valve 30 etc. by controller is set.
Corresponding, Fig. 5 shows the another another structural representation of the braking control system that the embodiment of the present invention provides, shown in Fig. 1 and Fig. 5, braking control system shown in Fig. 5 can also comprise: the first pressure sensor 90, the second pressure sensors 100 and controller 110;
Wherein, the first pressure sensor 90 can be used for detecting brake cylinder pilot pressure, and the brake cylinder pilot pressure of detection is transferred to controller 110; Optionally, the first pressure sensor 90 can be arranged in the first conduit of brake cylinder;
The second pressure sensor 100 can be used for detecting brake-cylinder pressure, and the brake-cylinder pressure of detection is transferred to controller 110; Optionally, the second pressure sensor 100 can be arranged in braking earthen pipe 60;
Controller 110, can be used for receiving the brake-cylinder pressure that brake cylinder pilot pressure that the first pressure sensor 90 transmits and the second pressure sensor 100 transmit, do not reach within a certain period of time described brake cylinder pilot pressure at described brake-cylinder pressure, while carrying out the first braking control, controlling redundancy electropneumatic valve 10 powers on, so that transfer valve 40 is exported the pressure that blast main conducts, so that two-way valve 50 is under the effect of institute's delivery pressure, transfer valve 40 delivery pressures are conducted into braking earthen pipe 60, make brake-cylinder pressure reach brake cylinder pilot pressure.
Optionally, controller 110 also can be used for controlling pressure regulating valve 30 and the pressure of blast main 20 is adjusted into consistent with brake cylinder pilot pressure; Concrete, controller 110 can send for controlling pressure regulating valve 30 blast main 20 is carried out to pressure controlled instruction, and in this instruction, carry the brake cylinder pilot pressure that the first pressure sensor 90 transmits, thereby make pressure regulating valve 30 pressure of blast main 20 is adjusted into consistent with brake cylinder pilot pressure according to this instruction;
Optionally, controller 110 also can, in the time carrying out the second braking control, be controlled distributing valve; Corresponding, in the time carrying out the second braking control, to control redundancy electropneumatic valve 10 and remove electricity, distributing valve 80 is exported the pressure that the first conduit 70 of brake cylinder conducts, 80 delivery pressures of distributing valve are conducted into braking earthen pipe 60 by two-way valve 50, so that brake-cylinder pressure reaches brake cylinder pilot pressure.
Optionally, the controller that the embodiment of the present invention provides can be applicable in the braking control system shown in Fig. 1-Fig. 4.
The braking control system that the embodiment of the present invention provides, provides a kind of brand-new locomotive brake mode, has realized and has not adopted distributing valve to carry out the braking control of locomotive, and the braking control system that obviously embodiment of the present invention provides also can use in conjunction with distributing valve.
The brake control method below embodiment of the present invention being provided is introduced, and brake control method described below is based on above-described braking control system, therefore below describe content relate to can with content corresponding part mutually is above described, can cross-reference; The brake control method that the embodiment of the present invention provides can be applicable in controller, realizes braking automatically and controls.
The diagram of circuit of the brake control method that Fig. 6 provides for the embodiment of the present invention, the method can be applicable in controller, and with reference to Fig. 6, this brake control method can comprise:
Step S100, judge whether brake-cylinder pressure reaches brake cylinder pilot pressure, if so, performs step S110, if not, execution step S120;
Optionally, realizing the judgment mode whether brake-cylinder pressure reach brake cylinder pilot pressure can be: the brake cylinder pilot pressure that receives the first pressure sensor transmission that detects the first catheter pressure of brake cylinder, with the brake-cylinder pressure of the second pressure sensor transmission that detects described brake cylinder pipe pressure, pass through the received size of brake cylinder pilot pressure and the size of brake-cylinder pressure, realize brake-cylinder pressure and whether reach the judgement of brake cylinder pilot pressure.
Step S110, process ends;
Step S120, carry out the first braking control, send the first instruction, described the first instruction is adjusted into the pressure of blast main consistent with brake cylinder pilot pressure for controlling pressure regulating valve;
Optionally, the first instruction portability has the brake cylinder pilot pressure of the first pressure sensor transmission, consistent with the brake cylinder pilot pressure carrying in described the first instruction so that described pressure regulating valve is adjusted into the pressure of blast main.
Step S130, send the second instruction, described the second instruction is used for controlling redundancy electropneumatic valve and carries out upper electric treatment, so that the pressure that transfer valve output blast main conducts, two-way valve is under the effect of transfer valve institute delivery pressure, transfer valve institute delivery pressure is conducted into braking earthen pipe, so that brake-cylinder pressure reaches brake cylinder pilot pressure.
Optionally, the brake control method that the embodiment of the present invention provides, can also realize the second braking control, and on the basis of method shown in Fig. 6, the brake control method that the embodiment of the present invention provides can also comprise step:
Carry out the second braking control, send the 3rd instruction and the 4th instruction, described the 3rd instruction is used for controlling redundancy electropneumatic valve and removes electricity, described the 4th instruction is for controlling the pressure of the first conduit conduction of distributing valve output brake cylinder, so that described distributing valve institute delivery pressure is conducted into described braking earthen pipe by described two-way valve, make brake-cylinder pressure reach brake cylinder pilot pressure, the same time of described two-way valve can only be conducted into described braking earthen pipe by described transfer valve delivery pressure, or described distributing valve delivery pressure is conducted into described braking earthen pipe.
Optionally, the second braking is controlled and can in the situation that distributing valve can normally be worked, be carried out, and the first braking is controlled and can in the situation that distributing valve loses efficacy, be carried out.
In this specification sheets, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.For the disclosed device of embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates referring to method part.
The software module that the method for describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use hardware, treater to carry out, or the combination of the two is implemented.Software module can be placed in the storage medium of any other form known in random access memory (RAM), internal memory, read-only memory (ROM) (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a braking control system, is characterized in that, comprising: redundancy electropneumatic valve, blast main, pressure regulating valve, transfer valve, two-way valve and braking earthen pipe;
Wherein, described redundancy electropneumatic valve connects described blast main and described transfer valve, described transfer valve connects described pressure regulating valve and described two-way valve, and described pressure regulating valve connects described blast main and described transfer valve, and described two-way valve connects described transfer valve and described braking earthen pipe;
In the time carrying out the first braking control, described pressure regulating valve is adjusted into the pressure of described blast main consistent with brake cylinder pilot pressure, described redundancy electropneumatic valve powers on, so that described transfer valve is exported the pressure that described blast main conducts, described two-way valve is under the effect of described transfer valve institute delivery pressure, described transfer valve institute delivery pressure is conducted into described braking earthen pipe, so that brake-cylinder pressure reaches brake cylinder pilot pressure.
2. braking control system according to claim 1, is characterized in that, described two-way valve comprises the first port and the second port;
Described the first port is by described transfer valve, and described pressure regulating valve is connected with described blast main, and described the second port is connected with described braking earthen pipe, and described the first port and the second port are connected under the effect of described transfer valve delivery pressure.
3. braking control system according to claim 1, is characterized in that, also comprises: the first conduit of brake cylinder and distributing valve, and the first conduit of described brake cylinder joins by described distributing valve and described two-way valve;
In the time carrying out the second braking control, described redundancy electropneumatic valve removes electricity, described distributing valve is exported the pressure of the first conduit conduction of described brake cylinder, described distributing valve institute delivery pressure is conducted into described braking earthen pipe by described two-way valve, so that brake-cylinder pressure reaches brake cylinder pilot pressure, the same time of described two-way valve can only be conducted into described braking earthen pipe by described transfer valve delivery pressure, or described distributing valve delivery pressure is conducted into described braking earthen pipe.
4. braking control system according to claim 3, is characterized in that, described two-way valve comprises the first port, the second port and the 3rd port;
Described the first port is by described transfer valve, and described pressure regulating valve is connected with described blast main, and described the second port is connected with described braking earthen pipe, and described the 3rd port is connected by the first conduit of described distributing valve and described brake cylinder;
Described the first port and the second port are connected under the effect of described transfer valve delivery pressure, described the second port and described the 3rd port are connected under the control of described distributing valve, and described the second same time of port can only be connected with in described the first port and described the 3rd port.
5. according to the braking control system described in claim 1-4 any one, it is characterized in that, also comprise: detect the first pressure sensor of the first catheter pressure of brake cylinder, detect the second pressure sensor of described brake cylinder pipe pressure, and controller;
Described controller, for receiving the brake cylinder pilot pressure of described the first pressure sensor transmission and the brake-cylinder pressure of described the second pressure sensor transmission, do not reach within a certain period of time described brake cylinder pilot pressure at described brake-cylinder pressure, while carrying out the first braking control, controlling described redundancy electropneumatic valve powers on, so that described transfer valve is exported the pressure that described blast main conducts, described two-way valve is under the effect of described transfer valve institute delivery pressure, described transfer valve institute delivery pressure is conducted into described braking earthen pipe, so that brake-cylinder pressure reaches brake cylinder pilot pressure.
6. braking control system according to claim 5, it is characterized in that, described controller, also for, while carrying out the second braking control, control described redundancy electropneumatic valve and remove electricity, described distributing valve is exported the pressure of the first conduit conduction of described brake cylinder, so that described distributing valve institute delivery pressure is conducted into described braking earthen pipe by described two-way valve, make brake-cylinder pressure reach brake cylinder pilot pressure, the same time of described two-way valve can only be conducted into described braking earthen pipe by described transfer valve delivery pressure, or described distributing valve delivery pressure is conducted into described braking earthen pipe.
7. a brake control method, is characterized in that, based on the braking control system described in claim 1-6 any one, described method is applied to controller, and described method comprises:
Judge whether brake-cylinder pressure reaches brake cylinder pilot pressure;
In the time that described brake-cylinder pressure does not reach described brake cylinder pilot pressure within a certain period of time, carry out the first braking control, send the first instruction, described the first instruction is adjusted into the pressure of blast main consistent with brake cylinder pilot pressure for controlling pressure regulating valve;
Send the second instruction, described the second instruction is used for controlling redundancy electropneumatic valve and carries out upper electric treatment, so that the pressure that transfer valve output blast main conducts, two-way valve is under the effect of transfer valve institute delivery pressure, transfer valve institute delivery pressure is conducted into braking earthen pipe, so that brake-cylinder pressure reaches brake cylinder pilot pressure.
8. brake control method according to claim 7, is characterized in that, describedly judges whether brake-cylinder pressure reaches brake cylinder pilot pressure and comprise:
Receive the brake cylinder pilot pressure of the first pressure sensor transmission that detects the first catheter pressure of brake cylinder, and detect the brake-cylinder pressure of the second pressure sensor transmission of described brake cylinder pipe pressure;
Judge the brake-cylinder pressure of described the second pressure sensor transmission, whether reach the brake cylinder pilot pressure of described the first pressure sensor transmission.
9. brake control method according to claim 8, it is characterized in that, described the first instruction carries the brake cylinder pilot pressure of described the first pressure sensor transmission, consistent with the brake cylinder pilot pressure carrying in described the first instruction so that pressure regulating valve is adjusted into the pressure of described blast main.
10. according to the brake control method described in claim 7-9 any one, it is characterized in that, also comprise:
Carry out the second braking control, send the 3rd instruction and the 4th instruction, described the 3rd instruction is used for controlling redundancy electropneumatic valve and removes electricity, described the 4th instruction is for controlling the pressure of the first conduit conduction of distributing valve output brake cylinder, so that described distributing valve institute delivery pressure is conducted into described braking earthen pipe by described two-way valve, make brake-cylinder pressure reach brake cylinder pilot pressure, the same time of described two-way valve can only be conducted into described braking earthen pipe by described transfer valve delivery pressure, or described distributing valve delivery pressure is conducted into described braking earthen pipe.
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| CN201410351440.1A CN104108403B (en) | 2014-07-23 | 2014-07-23 | Brake control system and method |
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| CN201410351440.1A CN104108403B (en) | 2014-07-23 | 2014-07-23 | Brake control system and method |
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| CN104108403B CN104108403B (en) | 2017-02-15 |
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| CN109229085A (en) * | 2018-09-11 | 2019-01-18 | 中车株洲电力机车有限公司 | A kind of locomotive brake control system and rail vehicle |
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| CN109532930A (en) * | 2019-01-08 | 2019-03-29 | 中车株洲电力机车有限公司 | Braking system and rail vehicle |
| WO2019238138A1 (en) * | 2019-03-01 | 2019-12-19 | 中车青岛四方车辆研究所有限公司 | Locomotive braking control system and control method |
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| CN104108403B (en) | 2017-02-15 |
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