CN201313545Y - Improved double heading valve and electric locomotive power supply control circuit - Google Patents
Improved double heading valve and electric locomotive power supply control circuit Download PDFInfo
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- CN201313545Y CN201313545Y CNU200820124648XU CN200820124648U CN201313545Y CN 201313545 Y CN201313545 Y CN 201313545Y CN U200820124648X U CNU200820124648X U CN U200820124648XU CN 200820124648 U CN200820124648 U CN 200820124648U CN 201313545 Y CN201313545 Y CN 201313545Y
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Abstract
The utility model relates to an improved double heading valve and an electric locomotive power supply control circuit. The double heading valve comprises a crossover valve, which comprises a crossover switch knob and an internal crossover plunger piston capable of moving up and down, wherein the upper side of the crossover valve is provided with a linkage; a normally opened and normally closed microswitch is fixed in the linkage; a link rod which can move along with the crossover plunger piston is assembled corresponding to the microswitch; the crossover plunger piston moves up and down to drive the link rod to move; and the microswitch acts and converts a corresponding position changing signal into an electric signal to be outputted in order to auxiliarily control the on-off of the electric locomotive power supply. When the utility model is adopted, the prior locomotive circuit does not need to be changed, thereby, the improved novel double heading valve can be assembled on the prior electric locomotive and the novel electric locomotive, and moreover, the use effect is safer and more reliable.
Description
Technical field
The utility model relates to a kind of heavily connection technology of electric locomotive, refers in particular to a kind of two (many) machines of electric locomotive that are applicable to and heavily joins improved type double-heading valve and the corresponding electric locomotive power control circuit that draws and be particularly suitable for drawing heavily loaded goods transport.
Background technology
Along with the continuous growth of railway transporting amount, press for the increase locomotive power and adopt two-shipper and the multiple-operated locomotive units traction.Double-heading valve aims at two-shipper exactly or multiple-operated locomotive units draws and is provided with, and its effect is to make the braking, mitigation and the train locomotive that heavily join assisting vehicle harmonious fully when train braking or alleviation.If train locomotive is when heavily joining assisting vehicle and disconnected hook takes place separate, it can make train locomotive and heavily join assisting vehicle and all be in braking mode, and makes the braking earthen pipe of assisting vehicle accept the control of the distributing valve of place locomotive, plays the separation protective effect.
At present, the double-heading valve of electric locomotive use is the double-heading valve of pure air valve structure.Changing at locomotive needs bus attendant manual switch double-heading valve diverse location (this machine or assisting vehicle) when end is handled, as the conversion mal or change not in placely, easily cause rim to relax or the braking force deficiency.Rim relaxes, and is commonly called as " driving wheel relaxes ", " free wheel ", is one of great inertia accident of locomotive, and is very harmful to traffic safety; The locomotive brake force deficiency then easily causes accidents such as disconnected hook.
In view of above-mentioned defective, this case designer improves existing double-heading valve, proposes the utility model, satisfy electric locomotive heavily through transport can overcome above-mentioned variety of issue with under the prerequisite of needs.
The utility model content
The technical problems to be solved in the utility model is: a kind of improved type double-heading valve and electric locomotive power control circuit are provided, to overcome existing double-heading valve conversion mal or to change not in place, easily cause rim to relax or brake hypodynamic problem, will satisfy the original function of double-heading valve simultaneously.
Technical solution of the present utility model is: a kind of improved type double-heading valve, described double-heading valve comprises change-over valve, described change-over valve comprises conversion switch knob and the inner conversion plunger that can move up and down setting, described change-over valve top is provided with linkage, described linkage internal fixation has one to have Chang Kai and normally closed micro-switch, and to should micro-switch be equiped with can with the connecting rod of conversion plunger interlock; Transition mast moves this connecting rod of drive beyond the Great Wall down and moves, and micro-switch moves and converts corresponding shift in position signal to electric signal output, with aux. controls electric locomotive on/off.
Aforesaid improved type double-heading valve; wherein; the power control circuit of electric locomotive comprises the first control power circuit; described first control circuit is by the break-make of zero-bit dead electricity intermediate relay control electronic housing to thyristor; described power control circuit also comprises the double-heading valve protective circuit; this double-heading valve protective circuit comprises above-mentioned micro-switch; and this micro-switch is connected between locomotive power supply switch and the electronic housing by the control power lead; double-heading valve is in this seat in the plane; drive the micro-switch action during conversion of assisting vehicle interdigit; connect related circuit, whether control locomotive electronic housing blocks.
Aforesaid improved type double-heading valve, wherein, the micro-switch of described double-heading valve protective circuit is connected with assisting vehicle control power lead with this machine control power lead respectively, is connected to the described first control power circuit then.
Aforesaid improved type double-heading valve; wherein; described double-heading valve protective circuit also comprises diode and universal seclector; this diode is connected between the micro-switch and the first control power circuit; this universal seclector has three pairs of contacts; described three pairs of contacts are connected between two contacts of this machine control power lead and micro-switch and diode and first is controlled between power circuit; this omnipotent conversion switch can cut off the power supply of this protective circuit, recovers the control of the locomotive first control power circuit.
Aforesaid improved type double-heading valve, wherein, described linkage comprises can, and this can covers at the described micro-switch outside and is fixed on the valve body of described change-over valve, and described can comprises box body and is removably connected to the lid of box body.
Aforesaid improved type double-heading valve, wherein, the locating bush that tilts to come off when being provided with limiting rod between the valve body of described change-over valve and in-to-in conversion plunger and moving; This locating bush periphery is provided with the groove that is used to install O type circle.
Aforesaid improved type double-heading valve, wherein, described connecting rod is the copper connecting rod, and described connecting rod diameter is 10mm, and the stroke of described conversion plunger is 7mm.
Aforesaid improved type double-heading valve, described linkage outside is provided with the four-core aviation plug, this micro-switch is connected in the control power lead and the first control power circuit.
A kind of electric locomotive power control circuit, this electric locomotive comprises control node and non-control node, described control node and non-control node are equipped with above-described improved type double-heading valve, and heavily join electric wire in also being connected with between the double-heading valve of described control node and the double-heading valve of described non-control node, so that this machine of control node, assisting vehicle, this machine that assisting vehicle control power lead cross-connects to non-control node are controlled power lead.
Aforesaid electric locomotive power control circuit, described electric locomotive are the SS4 series electric locomotive, and described double-heading valve protective circuit is located on 420 lines of locomotive circuit, and described machine control power lead is the 401a line, and described assisting vehicle control power lead is the 401b line.
Characteristics of the present utility model and advantage are: for guaranteeing the correct conversion of locomotive double heading valve, the utility model is installing one a cover mechanical linkage on former double-heading valve, and in addition circuit control, changes then locomotive traction no current as mal.When the utility model is used, need not to change original locomotive circuit, thereby guarantee to improve the new double-heading valve in back in existing electric locomotive with newly make electric locomotive and install and use, and result of use is safer, reliable.
Description of drawings
Fig. 1 is the assembling scheme drawing of improved type double-heading valve of the present utility model.
Fig. 2 is the locomotive electric cad system schematic diagram after the increase protective circuit of improved type double-heading valve of the present utility model.
Fig. 3 A to Fig. 3 C is the structural representation of the can box body of improved type double-heading valve of the present utility model.
Fig. 3 D is that the A of can box body among Fig. 3 A is to view.
Fig. 4 A to Fig. 4 C is the structural representation of the can lid of improved type double-heading valve of the present utility model.
Fig. 5 is the structural representation of the locating bush of improved type double-heading valve of the present utility model.
The specific embodiment
Following conjunction with figs. and specific embodiment are described in further detail the specific embodiment of the present utility model.
The utility model at first proposes a kind of improved type double-heading valve, as shown in Figure 1, this double-heading valve comprises change-over valve 200, change-over valve 200 is provided with conversion switch knob (not shown), and the inside of change-over valve 200 is provided with the conversion plunger 201 that can move up and down, and in addition, the top of change-over valve 200 also is provided with linkage 100, linkage 100 internal fixation have one to have Chang Kai and normally closed micro-switch 1, and the bottom of this micro-switch 1 is equiped with a copper connecting rod 2 that can stretch into conversion plunger 201 tops; Conversion plunger 201 moves up and down the corresponding coupling in position that makes transition mast wind path beyond the Great Wall and two groups of high brake pressure wind path mouths of electronics locomotive, can seal two groups of high brake pressure wind path mouths respectively, the conversion plunger movement drives this copper connecting rod 2 simultaneously and moves, make micro-switch 1 action in the double-heading valve, this seat in the plane or assisting vehicle bit position transformational relation are converted into electric signal output, are used for the break-make of aux. controls electric locomotive circuit.
Because the principle and the structure of the change-over valve portion of this double-heading valve are not limited in this, and can adopt multiple existing structure, no longer describe at the structure and the principle of change-over valve herein.
Shown in Fig. 1, Fig. 3 A and Fig. 4 C, linkage 100 also comprises outside can 3, and this can 3 covers at the outside of micro-switch 1, and with the valve body relative fixed of change-over valve 200.This can 3 can be made of box body 31 and lid 33, and lid 33 removably is fixedly connected on this box body.In the present embodiment, this can bottom is fixed on the valve body of change-over valve 200 by bolt, nut and packing ring.
As Fig. 1, shown in Figure 5, path when 201 of plungers of the valve body of change-over valve 200 and in-to-in conversion are provided with the limit copper connecting rod and move also prevents the locating bush 4 that its inclination comes off, path when moving so as to assurance copper connecting rod 2 makes micro-switch 1 (can adopt LX19-KB type travel switch) action put in place; Because the utility model has substituted valve gap on the former change-over valve with locating bush, in order to guarantee the sealing of change-over valve in-to-in, these locating bush 4 peripheries are provided with groove 41, are used to install O type circle 5.
In the specific embodiment of the present utility model, the size of can box body 31 can be 110 x, 40 x 90 (the wide x height of long x, the mm of unit, down together), wherein, height dimension (90) also can suitably reduce or increase, box body thickness is 1mm～2mm, and material can be steel plate or aluminium sheet.The size of can lid 33 can be 115 x, 12 x 95 (the wide x height of long x); Height dimension (95) also can suitably reduce or increase according to the box body size.Thickness is 1mm, and material can be steel plate, aluminium sheet or other transparent material; Be equipped with the hole on lid and the box body, can utilize screw that lid is fixed on the box body.Locating bush is of a size of 23.5 x, 11 x 23 (external diameter x internal diameter x length), and groove size is 3 x 2.75 and 3 x 2.25 (the width x degree of depth).Each size of this embodiment only is used to understand this technical scheme and lists, and is not to be used to limit the utility model, and those skilled in the art can carry out suitable variation according to actual needs.
The improved type double-heading valve is by the change-over valve portion top at above-mentioned pure mechanical double-heading valve mechanical linkage to be installed, and one of linkage internal fixation has Chang Kai and normally closed micro-switch 93QP, and micro-switch bottom installing diameter is the copper connecting rod that 10mm can stretch into the conversion plunger upper part.Utilize move up and down (stroke L is preferably 7mm) of conversion plunger, by connecting rod make micro-switch double-heading valve diverse location (this seat in the plane, assisting vehicle position), realize often opening of circuit with normally closed.Double-heading valve is when changing end, and by the conversion switch knob of this valve change-over valve portion of bus attendant manual switch, the conversion switch knob drives its in-to-in conversion plunger 201 and moves up and down, thereby changes its gas circuit, reaches the conversion purpose.In the double-heading valve of Fig. 1, when this conversion plunger 201 is positioned at the bottom,, move up when changing plunger 201, when triggering micro-switch 1, corresponding to the assisting vehicle position corresponding to this seat in the plane.
Utilize improved type double-heading valve of the present utility model, electrical principle to the original power locomotive need not to change, only needing to increase by a double-heading valve protective circuit gets final product, for example, the electric locomotive circuit comprises the first control power circuit that the original power locomotive has possessed, and first control circuit is by the break-make of a zero-bit dead electricity intermediate relay direct control electronic housing to thyristor; This double-heading valve protective circuit is that the switching motion that utilizes above-mentioned micro-switch will change plunger 201 is converted into electric signal; because this micro-switch is connected between locomotive power supply switch and the electronic housing by the control power lead; double-heading valve drives the micro-switch action in this seat in the plane, when the assisting vehicle interdigit is changed; connect related circuit, control the locomotive electronic housing thus and whether block.
The specific embodiment that is applied to the SS4 series electric locomotive with double-heading valve of the present utility model is elaborated below:
As the SS4 series electric locomotive double-heading valve of the present utility model is not installed, it is the voltage output that directly utilizes the first control power circuit control electronic housing, this first control power circuit is to be made of 466 lines, zero-bit dead electricity intermediate relay 678KA and 420 lines, and 420 wire joints are to electronic housing AE.When speed handwheel in " 0 " when position, dead electricity by zero-bit dead electricity intermediate relay 678KA, its normally closed interlocking has been linked up 466 lines and 420 lines, thereby give the electric signal of a direct current 110V of electronic housing, make electronic housing AE stop conducting to the thyristor (not shown), promptly block electronic housing, guarantee that speed handwheel locomotive engine when zero-bit is in no stream mode.
Utilize the above-mentioned characteristic of locomotive; under the situation that does not change former locomotive circuit; as shown in Figure 2; the utility model is to increase by one group of double-heading valve protective circuit on 420 lines, and in the present embodiment, this double-heading valve protective circuit comprises locomotive universal seclector 93QS, micro-switch 93QP, diode; wherein; micro-switch 93QP has Chang Kai and normally closed, and is connected with assisting vehicle control power lead 401b with this machine control power lead 401a respectively, is connected to 420 lines of the first control power circuit then.The power supply of this linkage is provided by this machine control power lead 401a, assisting vehicle control power lead 401b.
This diode is connected between the micro-switch and the first control power circuit; this universal seclector has three pairs of contacts; described three pairs of contacts are connected between often the opening of this machine control power lead and micro-switch, normally closed contact and diode and first is controlled between power circuit; this omnipotent conversion switch 93QS can cut off the power supply of this protective circuit, recovers the original control of the locomotive first control power circuit to the locomotive electronic housing.As shown in Figure 2, first pair of contact of this universal seclector controlled between power lead 401a and micro-switch in this machine by the J888 wire joint, in between assisting vehicle control power lead 401b and micro-switch, the J421 wire joint is passed through between diode and 420 lines in its 3rd pair of contact by the J886 wire joint in its second pair of contact.
In addition, maintain and replace for ease of wiring and linkage, can top at this linkage is provided with the hole, with installation four-core aviation plug 7 (as C X 16 type four-core plugs), thus can often opening and normally closed 420 lines that are connected in this machine, assisting vehicle control power lead 401a, 401b and the first control power circuit with this micro-switch.
Mechanical switch for two double-heading valves of realizing utilizing circuit supervision control node and non-control node, heavily join electric wire J4011 in also being connected with between the double-heading valve of control node and the double-heading valve of described non-control node, so that this machine of control node, assisting vehicle, this machine that assisting vehicle control power lead cross-connects to non-control node are controlled power lead.Further describe below in conjunction with the control node of SS4 series electric locomotive and the integrated application of non-control node:
The reversing handle zero-bit: lead 466 (+110V) → zero-bit dead electricity intermediate relay 678KA is normally closed → electronic housing blocks.
1. normal position: the double-heading valve of control node is put this seat in the plane, the double-heading valve assisting vehicle position of non-control node, and control node is given last 570QS (driver's cab power switch), and other work is ready, can start locomotive when handle leaves zero-bit.
Because non-control node 570QS do not have closure, and control node 401b links to each other with non-control node 401a by the interior electric wire J4011 that heavily joins, so control node 401b does not have; Control node 401a → 93QS → J88893QP often opens (this seat in the plane), thereby has blocked the path of 110V power supply to lead, and promptly electronic housing can not be blocked.
On the other hand, because non-control node 570QS disconnects, non-control node 401a does not have; Non-control node 401b and control node 401a often open (assisting vehicle position) by the interior electric wire → 93QS → J886 → 93QP that heavily joins, thereby have blocked the path of 110V power supply to lead 420, and promptly electronic housing AE can not be blocked.
2. position of fault, promptly other except above-mentioned normal position is three kinds: basis-one's own department or unit, benefit-cover, three kinds at benefit-one's own department or unit.
A, basis-one's own department or unit: handle abridged edition seat in the plane-non-and handle the abridged edition seat in the plane
I, control node 401a → 93QS → J888 → 93QP often open (this seat in the plane);
Normally closed (this seat in the plane) → diode of II, non-control node 401b → 93QS → J886 → 93QP → 93QS lead 420 → blockade electronic housing;
Non-control node blocks cooresponding electronic housing AE, simultaneously, has also blocked the electronic housing AE of control node locomotive, locomotive traction no current by interior heavy on line J4011.
B, benefit-one's own department or unit: control node assisting vehicle position-non-handles the abridged edition seat in the plane
Normally closed (the assisting vehicle position) → diode → 93QS of I, control node 401a → 93QS → J888 → 93QP → lead 420 → blockade electronic housing AE;
Normally closed (this seat in the plane) → diode → 93QS of II, non-control node 401b → 93QS → J886 → 93QP → lead 420 → blockade electronic housing AE;
Two joint locomotive electronic housing AE all are blocked, and heavily join electric wire J4011 conducting by interior, so the locomotive traction no current.
C, benefit-cover: control node assisting vehicle position-non-control node assisting vehicle position
Normally closed (the assisting vehicle position) → diode → 93QS of I, control node 401a → 93QS → J888 → 93QP → lead 420 → blockade electronic housing;
II, non-control node 401b → 93QS → J886 → 93QP often open (assisting vehicle position);
Control node locomotive electronic housing AE is blocked, and blocks non-control node electronic housing AE, locomotive traction no current by the interior electric wire J4011 that heavily joins.
The protective circuit of more than having described double-heading valve of the present utility model is for double-heading valve conversion mal or the circuit guarantee when not in place: only could guarantee after the correct conversion of double-heading valve that speed handwheel is leaving the zero-bit normal traction of locomotive later on; Conversion is during mal, even speed handwheel leaves zero-bit, the normally closed chain disconnection of zero-bit dead electricity relaying 678KA makes the disconnection of 466 lines and 420 lines, but the fender guard of 420 lines by double-heading valve has electricity all the time, and locomotive traction does not have stream.
In addition, when above-mentioned linkage fault, the universal seclector 93QS of control node, non-control node (A, B joint) can be beaten simultaneously to the fault position, power supply that can shutoff device recovers the locomotive primary circuit.Should be noted that the time, when excising the protective circuit of this linkage, need fall bow outage earlier, and pull up key, accomplish not have the electricity conversion.
The utility model has been stopped the potential safety hazard that causes because of misoperation from the source.At present, this improved type double-heading valve has been installed on probation in the electric locomotive of SS4 remodeling, has reached the expected design effect.By foregoing description, those skilled in the art should understand, and the utility model can use other fully and have the electric locomotive that heavily joins function, and corresponding, all wire sizes in the accompanying drawing can be written as other wire sizes, no longer describes in detail herein.
Though the utility model discloses with specific embodiment; but it is not in order to limit the utility model; any those skilled in the art; the displacement of the equivalent assemblies of under the prerequisite that does not break away from design of the present utility model and scope, having done; or, all should still belong to the category that this patent is contained according to equivalent variations and modification that the utility model scope of patent protection is done.
Claims (10)
1, a kind of improved type double-heading valve, described double-heading valve comprises change-over valve, described change-over valve comprises conversion switch knob and the inner conversion plunger that can move up and down setting, it is characterized in that, described change-over valve top is provided with linkage, described linkage internal fixation has one to have Chang Kai and normally closed micro-switch, and to should micro-switch be equiped with can with the connecting rod of conversion plunger interlock; Transition mast moves this connecting rod of drive beyond the Great Wall down and moves, and micro-switch moves and converts corresponding shift in position signal to electric signal output, with aux. controls electric locomotive on/off.
2; improved type double-heading valve as claimed in claim 1; it is characterized in that; the power control circuit of electric locomotive comprises the first control power circuit; described first control circuit is by the break-make of zero-bit dead electricity intermediate relay control electronic housing to thyristor; described power control circuit also comprises the double-heading valve protective circuit; this double-heading valve protective circuit comprises above-mentioned micro-switch; and this micro-switch is connected between locomotive power supply switch and the electronic housing by the control power lead; double-heading valve is in this seat in the plane; drive the micro-switch action during conversion of assisting vehicle interdigit; connect related circuit, whether control locomotive electronic housing blocks.
3, improved type double-heading valve as claimed in claim 2 is characterized in that, the micro-switch of described double-heading valve protective circuit is connected with assisting vehicle control power lead with this machine control power lead respectively, is connected to the described first control power circuit then.
4, improved type double-heading valve as claimed in claim 3; it is characterized in that; described double-heading valve protective circuit also comprises diode and universal seclector; this diode is connected between the micro-switch and the first control power circuit; this universal seclector has three pairs of contacts; described three pairs of contacts are connected between two contacts of this machine control power lead and micro-switch and diode and first is controlled between power circuit; this omnipotent conversion switch can cut off the power supply of this protective circuit, recovers the control of the locomotive first control power circuit.
5, improved type double-heading valve as claimed in claim 1, it is characterized in that, described linkage comprises can, and this can covers at the described micro-switch outside and is fixed on the valve body of described change-over valve, and described can comprises box body and is removably connected to the lid of box body.
6, improved type double-heading valve as claimed in claim 1 is characterized in that, the locating bush that tilts to come off when being provided with limiting rod between the valve body of described change-over valve and in-to-in conversion plunger and moving; This locating bush periphery is provided with the groove that is used to install 0 type circle.
7, improved type double-heading valve as claimed in claim 1 is characterized in that, described connecting rod is the copper connecting rod, and described connecting rod diameter is 10mm, and the stroke of described conversion plunger is 7mm.
8, improved type double-heading valve as claimed in claim 4 is characterized in that, described linkage outside is provided with the four-core aviation plug, this micro-switch is connected in the control power lead and the first control power circuit.
9, a kind of electric locomotive power control circuit, this electric locomotive comprises control node and non-control node, it is characterized in that, described control node and non-control node are equipped with the described improved type double-heading valve of claim 1～8, and heavily join electric wire in also being connected with between the double-heading valve of described control node and the double-heading valve of described non-control node, so that this machine of control node, assisting vehicle, this machine that assisting vehicle control power lead cross-connects to non-control node are controlled power lead.
10, electric locomotive power control circuit as claimed in claim 9; it is characterized in that described electric locomotive is the SS4 series electric locomotive, described double-heading valve protective circuit is located on 420 lines of locomotive circuit; described machine control power lead is the 401a line, and described assisting vehicle control power lead is the 401b line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820124648XU CN201313545Y (en) | 2008-12-16 | 2008-12-16 | Improved double heading valve and electric locomotive power supply control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820124648XU CN201313545Y (en) | 2008-12-16 | 2008-12-16 | Improved double heading valve and electric locomotive power supply control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN201313545Y true CN201313545Y (en) | 2009-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820124648XU Expired - Fee Related CN201313545Y (en) | 2008-12-16 | 2008-12-16 | Improved double heading valve and electric locomotive power supply control circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN201313545Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431543A (en) * | 2011-08-11 | 2012-05-02 | 南车株洲电力机车有限公司 | Automatic double heading valve main position and alternate position changeover device and changeover method |
| CN103600663A (en) * | 2013-12-02 | 2014-02-26 | 南车株洲电力机车有限公司 | Pantograph control circuit and pantograph rising retaining circuit of double-end cab direct current locomotive |
| CN104442903A (en) * | 2014-11-07 | 2015-03-25 | 南车株洲电力机车有限公司 | Control method and device for locomotive brake average tube |
| CN105667486A (en) * | 2016-03-29 | 2016-06-15 | 厦门大学 | Air pressure braking mode automatic control system for commercial vehicle and control method thereof |
| CN107298090A (en) * | 2017-08-07 | 2017-10-27 | 中车太原机车车辆有限公司 | The disconnected hook protection device of brake |
| CN109677388A (en) * | 2019-02-03 | 2019-04-26 | 上海蔚来汽车有限公司 | Electronic parking system, the vehicle including the electronic parking system and control method |
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2008
- 2008-12-16 CN CNU200820124648XU patent/CN201313545Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431543A (en) * | 2011-08-11 | 2012-05-02 | 南车株洲电力机车有限公司 | Automatic double heading valve main position and alternate position changeover device and changeover method |
| CN102431543B (en) * | 2011-08-11 | 2013-08-14 | 南车株洲电力机车有限公司 | Automatic double heading valve main position and alternate position changeover device and changeover method |
| CN103600663A (en) * | 2013-12-02 | 2014-02-26 | 南车株洲电力机车有限公司 | Pantograph control circuit and pantograph rising retaining circuit of double-end cab direct current locomotive |
| CN103600663B (en) * | 2013-12-02 | 2016-04-06 | 中国铁路总公司 | A kind of both-end cab DC motorcycle pantograph control circuit and rising bow lock-out circuit |
| CN104442903A (en) * | 2014-11-07 | 2015-03-25 | 南车株洲电力机车有限公司 | Control method and device for locomotive brake average tube |
| CN105667486A (en) * | 2016-03-29 | 2016-06-15 | 厦门大学 | Air pressure braking mode automatic control system for commercial vehicle and control method thereof |
| CN105667486B (en) * | 2016-03-29 | 2017-04-19 | 厦门大学 | Air pressure braking mode automatic control system for commercial vehicle and control method thereof |
| CN107298090A (en) * | 2017-08-07 | 2017-10-27 | 中车太原机车车辆有限公司 | The disconnected hook protection device of brake |
| CN109677388A (en) * | 2019-02-03 | 2019-04-26 | 上海蔚来汽车有限公司 | Electronic parking system, the vehicle including the electronic parking system and control method |
| CN109677388B (en) * | 2019-02-03 | 2024-02-27 | 上海蔚来汽车有限公司 | Electronic parking system, vehicle comprising same and control method |
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