CN203844743U - Pneumatic electrical parking braking system - Google Patents
Pneumatic electrical parking braking system Download PDFInfo
- Publication number
- CN203844743U CN203844743U CN201420145501.4U CN201420145501U CN203844743U CN 203844743 U CN203844743 U CN 203844743U CN 201420145501 U CN201420145501 U CN 201420145501U CN 203844743 U CN203844743 U CN 203844743U
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- Prior art keywords
- electromagnetic valve
- controller
- relay valve
- control
- hand relay
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Abstract
The utility model discloses a pneumatic electrical parking braking system. The pneumatic electrical parking braking system comprises a control switch, a controller, an electromagnetic valve and a hand relay valve; the control switch is electrically connected with the first input end of the controller; the output end of the controller is electrically connected with the control end of the electromagnetic valve; the input end of the electromagnetic valve is connected with an air reservoir; the output port of the electromagnetic valve is connected with the control port of the hand relay valve; the air inlet of the hand relay valve is connected with the air reservoir; the air outlet of the hand relay valve is connected with a braking air chamber. The pneumatic electrical parking braking system is high in response speed, low in braking operating force and convenient to operate; besides, the safety of operation can be improved, the space utilization rate of a driving cab can be increased and the layout of the driving cab can be optimized; the system has an automatic parking function upon stalling of engine, and therefore, the safety of parking is improved and accidental sliding is avoided.
Description
Technical field
The utility model relates to vehicle brake technology field, relates in particular to a kind of vapour-pressure type electric control parking brake system.
Background technology
At present, according to the type of transmission of braking energy, brake system can be divided into mechanical braking, hydraulic braking, compression air brake, electromagnetic braking and combination braking.1, mechanical braking: mechanical brake device is made up of pure mechanical component, is generally used for braking during standstill; Because lock torque is large, reliability is high, effective and be used, but this kind of brake structure complexity, handles sensitieness and reaction rapidity is poor.2, hydraulic braking: hydraulic brake system utilizes hydraulic oil, is converted to hydraulic coupling by brake pedal force, reaches car side brake by pipeline, then changes hydraulic coupling into mechanical force and brake; Feature that hydraulic braking has the Portable power saving of manipulation, is quick on the draw, simple in structure, quality is little etc., but hydraulic braking moment shakiness, piping layout difficulty.3, compression air brake: air braking systems is to utilize pressurized air as propulsion source, and changes air pressure into mechanical thrust, carries out wheel braking.Rapidly steadily, brake off is thorough rapidly in its braking, and Energy Transfer is safe and reliable, pollution-free, handles Portable power saving, is Energy Transfer mode the most frequently used in current brake system.4, electromagnetic braking: by the effect of electromagnetic force, produce (or elimination) braking function; Electromagnetic brake structure compactness, simple to operate, respond sensitively, use reliably, be easy to realize distance control, be mainly used in the machineries such as metallurgy, lathe, steamer.5, combination braking: the combination of multiple braking model.Pneumatic braking system is divided into again service brake, braking during standstill, emergency brake, auxiliary braking etc., and general emergency brake and braking during standstill share a cover system, and traditional braking during standstill generally carries out parking action by controlling mechanical type parking brake (hand brake valve).The mode of fluid pressure type braking during standstill is divided into mechanical parking brake and electronics parking brake, the plug-type joystick of electronic hand brake lever parking brake makes the joystick of band tape type into, be the technology that electronic control mode is realized stopping brake, electronics parking brake can improve travel safety and easy operation.Traditional vapour-pressure type braking during standstill adopts mechanical type hand brake valve to operate, and operating effort is large; Hand brake valve is arranged into by driver's seat, and when operation, hand miles of relative movement is large, operation inconvenience; When braking during standstill (emergency brake), the singlehanded bearing circle of controlling, processing safety is low; Due to chaufeur carelessness, there is forgetting parking brake, vehicle there will be and slips car phenomenon.
Utility model content
In view of this, a technical matters to be solved in the utility model is to provide a kind of vapour-pressure type electric control parking brake system, can effectively solve the above problems.
A kind of vapour-pressure type electric control parking brake system, comprising: master cock, controller, electromagnetic valve and hand relay valve; Described master cock is electrically connected with the first input end of described controller, and the mouth of described controller is electrically connected with the control end of described electromagnetic valve; The input port of described electromagnetic valve is connected with air tank, and the output port of described electromagnetic valve is connected with the control port of described hand relay valve; The admission port of described hand relay valve is connected with air tank, and the air extractor duct of described hand relay valve is connected with compressed air brake cylinder; Wherein, under the state normally travelling, the output port of described electromagnetic valve and input port are connected, and the first pressed gas enters the control port of described hand relay valve by described electromagnetic valve and the admission port of described hand relay valve and air extractor duct are connected, and the second pressed gas enters described compressed air brake cylinder.
According to an embodiment of the present utility model, further, the excitation end of engine speed sensor or electrical generator is electrically connected with the second input end of described controller.
According to an embodiment of the present utility model, further, described master cock is arranged on bearing circle.
According to an embodiment of the present utility model, further, described master cock is electronic switch.
Vapour-pressure type electric control parking brake system of the present utility model, fast response time, brake operation force are little, easy to operate and can improve operation safety, can improve space availability ratio in operator's compartment, optimizing operator's compartment arranges, and there is engine off automatic parking function, and improve parking safety, avoid the unexpected car that slips.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment 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 embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is according to the schematic diagram of an embodiment of vapour-pressure type electric control parking brake system of the present utility model;
Fig. 2 is according to the scheme of installation of the master cock in an embodiment of vapour-pressure type electric control parking brake system of the present utility model.
Detailed description of the invention
With reference to the accompanying drawings the utility model is described more fully, exemplary embodiment of the present utility model is wherein described.Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
In of the present utility model, " first ", " second " etc. distinguish on describing, not other special implication.
As shown in Figure 1, vapour-pressure type electric control parking brake system comprises: master cock 7, controller 3, electromagnetic valve 4 and hand relay valve 5.Master cock 7 is electrically connected with the first input end of controller 3, and the mouth of controller 3 is electrically connected with the control end of electromagnetic valve 4.The input port of electromagnetic valve 4 is connected with air tank 15, and the output port of electromagnetic valve is connected with the control port 42 of hand relay valve 5.The admission port 1 of hand relay valve 5 is connected with air tank 14, and the air extractor duct 2 of hand relay valve 5 connects with compressed air brake cylinder 6,16.
Hand relay valve 5 is control element, controls the break-make of gas circuit, so control compressed air brake cylinder 6,16 bring about the desired sensation, lose gas situation, there is differential function, prevent that service brake and braking during standstill from working simultaneously, in order to avoid compressed air brake cylinder overload.Compressed air brake cylinder 6,16 changes compressed-air actuated pressure into the mechanical force of guide rod, and then controls drg action.
Drg is the parts that produce the power (braking force) that hinders vehicle movement or movement tendency.Air tank is the storing apparatus of vehicle use gas, and each loop air tank is separate, can connect respectively hand relay valve 5 and electromagnetic valve 4 by unified air tank, or arranges independently that air tank is respectively hand relay valve 5 and electromagnetic valve 4 provides pressed gas.
Under the state of normal vehicle operation, the output port of electromagnetic valve 4 and input port are connected, the first pressed gas enters the control port 42 of hand relay valve 5 by electromagnetic valve 4 and the admission port 1 of hand relay valve is connected with air extractor duct 2, and the second pressed gas enters compressed air brake cylinder 6,16.In the time that controller 3 receives the parking brake signals that master cock 7 sends, controller 3 transmits control signal to electromagnetic valve 4, the output port of electromagnetic valve 4 and input port disconnect, the control port 42 of hand relay valve 5 loses gas and the admission port 1 of hand relay valve 5 is disconnected with air extractor duct 2, carries out braking during standstill action.
According to an embodiment of the present utility model, the excitation end 8 of engine speed sensor or electrical generator is electrically connected with the second input end of controller 3.Controller 3 gathers the rotary speed information of driving engine; In the time that engine stop rotates, controller 3 transmits control signal to electromagnetic valve 4, and the output port of electromagnetic valve 4 and input port disconnect.
According to an embodiment of the present utility model, as shown in Figure 1, the control circuit of parking system is: master cock signal, engine running signal, other signals (1 ... n)-controller input end-controller-controller output end-solenoid control end.The signal of control circuit collection mainly contains master cock signal, engine running signal etc., output control signal after processing by controller.Controller is processed the signal collecting, output control signal, and for example, the signal of output is on-off signal " 1 " (high level), " 0 " (low level).
Master cock signal, engine running signal are for determining detection signal, and can expand other signals is detection signal, for example flame-out gear signal, automobile speed signal etc.Engine running signal can obtain by the excitation end (D+) or the engine speed sensor that gather electrical generator, and for example, when engine running, engine running signal is " 1 " (high level).After engine off, engine running signal is " 0 " (low level).
The control gas circuit of parking system is: air tank-electromagnetic valve-hand relay valve control mouth 42.Control gas circuit and realize gas path on-off by electromagnetic valve.Electromagnetic valve obtains electric, and control end signal is " 1 " (high level), and electromagnetic valve gas circuit is connected.Electromagnetic valve dead electricity, control end signal is " 0 " (low level), electromagnetic valve gas circuit disconnects.
The main gas circuit of parking system is: braking during standstill admission port 12-compressed air brake cylinder---the drg of air tank-hand relay valve admission port 1-hand relay valve air extractor duct 2-compressed air brake cylinder.Main gas circuit realizes gas path on-off by hand relay valve.The hand relay valve control mouth 42 main gas circuit of bringing about the desired sensation is connected, and braking during standstill is failure to actuate.Hand relay valve control mouth 42 loses main gas circuit disconnection of gas, braking during standstill action.
Vapour-pressure type electric control parking brake system of the present utility model, by gathering engine running signal and master cock signal, after via controller is processed, sending control signal controls electromagnetic valve, and then the control of realization to braking during standstill, there is engine off automatic parking function, improve parking safety, avoid the unexpected car that slips.
According to an embodiment of the present utility model, the groundwork state of vehicle have normal motoring condition, starting state, parking state, automatic parking state, emergency brake state, short time parking (as etc. red light), short time parking (as blocking up) etc.Braking during standstill is generally parking brake, its function be stop time, give resistance of vehicle avoid slipping car phenomenon occur.Emergency brake refers to the in the situation that of driving braking failure (or partial failure), in certain distance, vehicle is stopped.About braking during standstill (emergency brake).The state of a control that realizes vehicle operation state by vapour-pressure type electric control parking brake system of the present utility model is as shown in table 1 below:
Table 1-vapour-pressure type electric control parking brake system realizes the state of a control of vehicle operation state
Normal motoring condition implementation procedure: master cock disconnects, engine running, controller output high level; Electromagnetic valve obtains electric, and gas circuit is connected.Hand relay valve control mouth 42 is brought about the desired sensation, and main gas circuit is connected; Compressed air brake cylinder admission port 12 is brought about the desired sensation, and braking during standstill is failure to actuate.The implementation procedure of starting state, short time parking (as blocking up) is identical with normal motoring condition.
Braking during standstill implementation procedure: master cock is closed, engine off, controller output low level; Electromagnetic valve dead electricity, gas circuit disconnects; Hand relay valve control mouth 42 loses gas, and main gas circuit disconnects; Compressed air brake cylinder admission port 12 loses gas, braking during standstill action.
Emergency brake implementation procedure: master cock is closed, engine running, controller output low level; Electromagnetic valve dead electricity, gas circuit disconnects; Hand relay valve control mouth 42 loses gas, and main gas circuit disconnects; Compressed air brake cylinder admission port 12 loses gas, braking during standstill action.The implementation procedure of short time parking (as waited red light) is identical with emergency brake implementation procedure.
Automatic parking implementation procedure: master cock is forgotten and closed (disconnection), engine off, controller output low level; Electromagnetic valve dead electricity, gas circuit disconnects; Hand relay valve control mouth 42 loses gas, and main gas circuit disconnects; Compressed air brake cylinder admission port 12 loses gas, braking during standstill action.
According to an embodiment of the present utility model, when controller receives parking brake signals that master cock sends and driving engine when operation, controller transmits control signal to electromagnetic valve, and the output port of electromagnetic valve and input port disconnect.When controller receives parking brake signals that master cock sends and engine stop when operation, controller transmits control signal to electromagnetic valve, and the output port of electromagnetic valve and input port disconnect.When controller does not receive parking brake signals that master cock sends and engine stop when operation, controller transmits control signal to electromagnetic valve, and the output port of electromagnetic valve and input port disconnect.
According to an embodiment of the present utility model, master cock adopts conventional push-button switch, is arranged into the position of bearing circle near the right hand, and convenient operation improves the safety operating simultaneously, improves space availability ratio in operator's compartment.As shown in Figure 2, master cock is arranged on bearing circle, master cock can adopt polytype, for example, be electronic switch etc., cancels traditional parking brake control operating rod, adopt electric push button to control, be conducive to reduce brake operating force, improve space availability ratio in operator's compartment, while carrying out brake operating, can both hands control bearing circle, safety of operation is rapid.
Vapour-pressure type electric control parking brake system of the present utility model has the following advantages:
1, adopt circuit control, fast response time; Its steering unit is electric push button, and compared with mechanical type parking brake, brake operation force is little;
2, electronic switch is arranged into the position of right hand easy operating on bearing circle, easy to operate, can both hands control bearing circle while operation simultaneously, processing safety is high;
3, control loop detects engine running signal, in the time of engine off, realizes automatic parking, after avoiding stopping, slips car phenomenon because forgetting that parking brake causes;
4, this control system collection signal not only comprises known signal (engine running signal and master cock signal), but also comprises expansion signal, is improving and lifting of later stage control system performance, and providing may;
5, this vapour-pressure type electric control parking brake system has been cancelled hand brake valve and operating handle thereof, adopts electronic button as steering unit, and volume is little, takies cabin space little, improves space availability ratio in operator's compartment, optimizes operator's compartment and arranges.
May realize in many ways method and system of the present utility model.For example, can realize method and system of the present utility model by any combination of software, hardware, firmware or software, hardware, firmware.Said sequence for the step of method is only in order to describe, and the step of method of the present utility model is not limited to above specifically described order, unless special version otherwise.In addition, in certain embodiments, also the utility model can be embodied as to the program being recorded in recording medium, these programs comprise for realizing the machine readable instructions according to method of the present utility model.Thereby the utility model also covers storage for carrying out according to the recording medium of the program of method of the present utility model.
Description of the present utility model provides for example with for the purpose of describing, and is not exhaustively or by the utility model to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present utility model and practical application, thereby and makes those of ordinary skill in the art can understand the utility model design to be suitable for the various embodiment with various amendments of special-purpose.
Claims (4)
1. a vapour-pressure type electric control parking brake system, is characterized in that, comprising:
Master cock, controller, electromagnetic valve and hand relay valve;
Described master cock is electrically connected with the first input end of described controller, and the mouth of described controller is electrically connected with the control end of described electromagnetic valve; The input port of described electromagnetic valve is connected with air tank, and the output port of described electromagnetic valve is connected with the control port of described hand relay valve; The admission port of described hand relay valve is connected with air tank, and the air extractor duct of described hand relay valve is connected with compressed air brake cylinder; Wherein, under the state normally travelling, the output port of described electromagnetic valve and input port are connected, and the first pressed gas enters the control port of described hand relay valve by described electromagnetic valve and the admission port of described hand relay valve and air extractor duct are connected, and the second pressed gas enters described compressed air brake cylinder.
2. the system as claimed in claim 1, is characterized in that:
The excitation end of engine speed sensor or electrical generator is electrically connected with the second input end of described controller.
3. the system as claimed in claim 1, is characterized in that:
Described master cock is arranged on bearing circle.
4. system as claimed in claim 3, is characterized in that:
Described master cock is electronic switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145501.4U CN203844743U (en) | 2014-03-28 | 2014-03-28 | Pneumatic electrical parking braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420145501.4U CN203844743U (en) | 2014-03-28 | 2014-03-28 | Pneumatic electrical parking braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203844743U true CN203844743U (en) | 2014-09-24 |
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ID=51557794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420145501.4U Expired - Fee Related CN203844743U (en) | 2014-03-28 | 2014-03-28 | Pneumatic electrical parking braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203844743U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107512260A (en) * | 2017-07-06 | 2017-12-26 | 中国第汽车股份有限公司 | A kind of electronic parking system based on air pressure redundancy |
| CN109263623A (en) * | 2018-10-12 | 2019-01-25 | 广西柳工机械股份有限公司 | Engineering truck parking braking system and its control method |
-
2014
- 2014-03-28 CN CN201420145501.4U patent/CN203844743U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107512260A (en) * | 2017-07-06 | 2017-12-26 | 中国第汽车股份有限公司 | A kind of electronic parking system based on air pressure redundancy |
| CN109263623A (en) * | 2018-10-12 | 2019-01-25 | 广西柳工机械股份有限公司 | Engineering truck parking braking system and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20190328 |