CN106870339A - A kind of pneumatic power system of new-energy automobile - Google Patents
A kind of pneumatic power system of new-energy automobile Download PDFInfo
- Publication number
- CN106870339A CN106870339A CN201710115580.2A CN201710115580A CN106870339A CN 106870339 A CN106870339 A CN 106870339A CN 201710115580 A CN201710115580 A CN 201710115580A CN 106870339 A CN106870339 A CN 106870339A
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- China
- Prior art keywords
- pressure
- air compressor
- compressor machine
- rearmounted
- signal
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/022—Stopping, starting, unloading or idling control by means of pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/16—Filtration; Moisture separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2205/00—Fluid parameters
- F04B2205/05—Pressure after the pump outlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a kind of pneumatic power system of new-energy automobile, include the air compressor machine sequentially connected by gas circuit, air dryer, air accumulator and drive cylinder, rearmounted pressure sensor is provided with the air accumulator, pressure controller has been mounted directly on the air compressor machine, the rearmounted pressure signal that the rearmounted pressure sensor will be detected passes to pressure controller in real time, pressure controller controls the start stop operation of air compressor machine according to rearmounted pressure signal, start air compressor machine work when minimal pressure force value of the rearmounted pressure signal for detecting less than setting, stop air compressor machine work when maximal pressure force value of the rearmounted pressure signal for detecting higher than setting.Present invention design not only makes pneumatic power system realize modularized design, and realize being precisely controlled for air compressor machine start and stop, whole system has control accuracy high, structure simplification, simple installation, use cost low, the characteristics of late maintaining facilitates, can greatly prolong the service life of pneumatic power system.
Description
Technical field
The present invention relates to a kind of new-energy automobile, the pneumatic power system of specially a kind of new-energy automobile.
Background technology
With the continuous improvement of environmental consciousness in recent years, new-energy automobile gradually rises.And in new-energy automobile, it is stopped
The system such as car and enabling typically all uses pneumatic power system drive, the pneumatic power system mainly to be done including air compressor machine, air
Dry device and compressed air reservoir.
In use, dehumidified by air dryer after outside air compresses through air compressor machine, be then sent to air accumulator energy storage,
Realize the action of drive cylinder for drive cylinder is supplied by air accumulator when needing and braking or open the door.Here, because braking and opening
Door is an intermittent action for uncertain time, and air compressor machine without being operated always in practice, it is only necessary to ensures gas storage
Within the specific limits, therefore, being provided with pressure sensor in existing air accumulator, pressure sensor will for air pressure in tank
Its signal for detecting passes to car running computer in real time, and controls air compressor machine according to the pressure signal for receiving by car running computer
Start and stop.When pressure is less than minimum setting value in air accumulator, car running computer sends enabling signal makes air compressor machine operation, and
When the pressure in air accumulator is higher than highest setting value, car running computer sends shutdown signal makes air compressor machine out of service.
In the ideal situation, the pressure in air accumulator should be remained in normal working pressure range.But in the above
In dynamical system, to ensure the normal operation of air dryer, typically all middle in air dryer a maximum pressure can be set
Vent valve, when the pressure value in air dryer reaches the setting value, vent valve will be automatically opened up and be exhausted operation,
With the condensed water in emptied of air drier.But above maximum pressure vent valve is mechanical switch, does not only exist processing and assemble
Error, while because the reasons such as vibration can further increase the regulation error in actual motion, and the pressure sensing in sensor
Device there is also detection error, and this is caused once two errors incorporate more than certain scope, just occurs that pressure sensor is examined
Maximum pressure vent valve just has already turned on exhaust when the signal for measuring has not arrived highest setting value, and its result just occurs pneumatics
Machine runs non-stop-machine job failure always, not only causes the loss of battery electric quantity, can more increase the burden of air compressor machine, seriously
Have impact on the service life of air compressor machine.
Air dryer above is made up of the molecular sieve of adsorbed moisture, and its inlet end and outlet side have certain gas
Pressure difference, and with air trickle dust and moisture constantly adsorb accumulation, will result in the further obstruction of air dryer, make
Pressure-drop in pipeline further increases, and in turn results in the situation of the inlet end air pressure far above the pressure in air accumulator of air dryer,
Replacing as carried out air dryer not in time safeguards that the energy consumption for not only resulting in air compressor machine increases, and can also make compressor highest
Pressure protection valve is opened and the failure that air compressor machine runs always occurs.
Additionally, the dynamical system of the above only sets pressure sensor in air storage tank, can also go out once in a while in use
The phenomenon of existing pressure sensor failure occurs, and this air compressor machine is still when the pressure in air accumulator will be caused to be less than minimum setting value
Will not start, and finally cause that pneumatic power system cannot normal work.
Furthermore, in the above air accumulator signal transmission of pressure sensor to car running computer, and by car running computer analyze after again
The control signal of air compressor machine is sent, the structure setting causes not only to need to carry out the company of gas circuit when pneumatic power system is installed
Connect, while also needing to carry out connection and the signal debugging between pressure sensor, car running computer and air compressor machine, fiber crops are not only installed
Tired, and complex structure, fault rate is high, and the maintenance cost in later stage is high.
The content of the invention
Regarding to the issue above, the present invention devises a kind of pneumatic power system of new-energy automobile, and it is directly in air compressor machine
On be mounted with control air compressor machine start stop operation gas pressure regulator, and the outlet side of air compressor machine be provided with precondition pressure sensing
Device, not only makes pneumatic power system realize modularized design, and realizes being precisely controlled for air compressor machine start and stop, whole system tool
There is the characteristics of control accuracy high, structure simplification, simple installation, use cost are low, and late maintaining facilitates, can greatly prolong pneumatic dynamic
The service life of Force system.
To achieve the above object, the present invention uses following technical scheme：
A kind of pneumatic power system of new-energy automobile, includes air compressor machine, air dryer, the storage sequentially connected by gas circuit
Gas tank and drive cylinder, are provided with rearmounted pressure sensor in the air accumulator, maximal pressure is provided with the air dryer
Power vent valve, it is characterised in that：Pressure controller is mounted directly on the air compressor machine, the rearmounted pressure sensor will be detected
To rearmounted pressure signal pass to pressure controller in real time, pressure controller controls air compressor machine according to rearmounted pressure signal
Start stop operation, starts air compressor machine work, when detecting when minimal pressure force value of the rearmounted pressure signal for detecting less than setting
Rearmounted pressure signal higher than setting maximal pressure force value when stop air compressor machine work.
Further, above-mentioned maximum pressure vent valve is a magnetic valve, and the unlatching of the magnetic valve is by the Stress control
Device is controlled, and pressure controller is first closed air compressor machine and then sent when the rearmounted pressure signal for obtaining reaches setting maximal pressure force value
Exhaust of the instruction opens solenoid valve to carry out air dryer is vented condensed water.
Further, above-mentioned air compressor machine is carried displacement air compressor.
Further, pressure median is provided with above-mentioned pressure controller, when the rearmounted pressure signal that it is received is low
Starting air compressor machine when the pressure median carries out Half Speed operation, when minimum pressure of the pressure signal less than setting that it is received
Start air compressor machine during value at full speed and run to always up to highest setting pressure value.
Further, the outlet side of above-mentioned air compressor machine is provided with precondition pressure sensor, and precondition pressure sensor is examined
The precondition pressure signal for measuring passes to pressure controller in real time, pressure controller according to the precondition pressure signal for receiving, after
The signal difference of pressure signal and both is put to judge air dryer operating mode.
Further, above-mentioned pressure controller can count the single working time of air compressor machine, and preposition with reference to what is received
Pressure signal and rearmounted pressure signal carry out the operating mode of comprehensive descision pneumatic power various parts.
Further, signal feedback module is provided with above-mentioned pressure controller, signal feedback module collects air compressor machine
The difference data of Cumulative Elapsed Time data or precondition pressure signal and rearmounted pressure signal or the separate run times of air compressor machine,
Precondition pressure signal and rearmounted pressure signal data, and signal or event will be accordingly maintained when these data reach setting numerical value
Barrier signal is fed back on car running computer.
In above structure, the present invention has been directly integrated pressure controller in air compressor machine, and it can directly receive air accumulator
In rearmounted pressure sensor rearmounted pressure signal and control the start stop operation of air compressor machine, the operation of whole system is without driving electricity
Brain is participated in so that whole pneumatic power system realizes independent modularized design, and corresponding gas circuit need to be only connected when mounted
, not only structure simplifies, while facilitating installation and debugging, whole system has use cost low, and late maintaining is convenient
Feature, can greatly prolong the service life of pneumatic power system.
Here, the maximum pressure vent valve in air above drier uses electromagnetic valve structure, and magnetic valve unlatching by
Pressure controller combines the rearmounted pressure signal for receiving and is controlled, and can not only fundamentally solve maximum pressure vent valve
Problem is opened in advance, and open and close controlling is accurate, it is ensured that the works fine performance of air dryer.
In addition, the present invention is provided with precondition pressure sensor in the outlet side of the air compressor machine, the precondition pressure sensor
The precondition pressure signal and described rearmounted pressure signal for detecting pass to pressure controller together, and by pressure controller point
Analysis compares to confirm the working condition of air compressor machine, gas circuit and rearmounted pressure sensor, it is ensured that the normal fortune of pneumatic power system
OK, the service life of air compressor machine is extended.
Brief description of the drawings
Fig. 1, principle schematic diagram. of the invention.
Specific embodiment
As shown in figure 1, a kind of pneumatic power system of new-energy automobile, includes the air compressor machine sequentially connected by gas circuit
1st, air dryer 2, air accumulator 3 and drive cylinder 4.
Rearmounted pressure sensor 5 is provided with the air accumulator 3, pressure controller has been mounted directly on the air compressor machine 1
6, the rearmounted pressure signal that the rearmounted pressure sensor 5 will be detected passes to pressure controller 6, pressure controller 6 in real time
The start stop operation of air compressor machine 1 is controlled according to rearmounted pressure signal.When the rearmounted pressure signal for detecting is minimum less than setting
Start air compressor machine 1 during pressure value to work, pneumatics is stopped when maximal pressure force value of the rearmounted pressure signal for detecting higher than setting
Machine 1 works.
Pressure controller 6 in above air compressor machine 1 can directly receive the rearmounted pressure of rearmounted pressure sensor 5 in air accumulator 3
Force signal simultaneously controls the start stop operation of air compressor machine 1, and the running of whole system is participated in without car running computer 7 so that whole gas
Dynamic formula dynamical system realizes modularized design, and corresponding gas circuit need to be only connected when mounted, and not only structure simplifies, while
Facilitate installation and debug, it is low with use cost, the characteristics of late maintaining facilitates, making for pneumatic power system can be greatly prolonged
Use the life-span.
Here, in solving the problems, such as existing air dryer 2 maximum pressure vent valve 21 open in advance, highest of the present invention
Pipe vent valve 21 is replaced by magnetic valve by existing mechanical switch, and the unlatching of magnetic valve is controlled by the pressure controller 6.
After air compressor machine 1 starts work, closed when the rearmounted pressure signal that pressure controller 6 is obtained reaches setting maximal pressure force value empty
Press, then sends instruction opens solenoid valve and is exhausted, and is sky next time with the condensed water in emptied of air drier 2
Press 1 works ready, and ensures the good service behaviour of air dryer 2.
The air compressor machine 1 be carried displacement air compressor, due to new-energy automobile requirement parts miniaturization, it is light-weighted
Feature so that the design of air compressor machine 1 sacrifices heat dispersion.Therefore, the present invention is provided with a pressure in pressure controller 6
Median, when the rearmounted pressure signal that pressure controller 6 is received is less than the pressure median, startup air compressor machine 1 carries out Half Speed
Operation, air compressor machine 1 is started when minimal pressure force value of the rearmounted pressure signal that it is received less than setting and is reached up at full speed
Stop during setting maximal pressure force value, and then form the intermittent duty mode most beneficial for the work of air compressor machine 1, can effectively extend pneumatics
The service time of machine 1, reduces operation troubles, saves the maintenance cost in later stage.
The outlet side of the air compressor machine 1 is provided with precondition pressure sensor 8, and precondition pressure sensor 8 is equally detected
To precondition pressure signal pass to pressure controller 6 in real time, pressure controller 6 according to the precondition pressure signal for receiving, after
Put the signal difference of pressure signal and both to judge the congestion situations of air dryer 2, and be according to this dimension of air dryer 2
Shield provides foundation.
Additionally, described pressure controller 6 has the function of statistics air compressor machine single working time, and by air compressor machine 1
Single continuous working period data are each to judge pneumatic power system with reference to the precondition pressure signal, rearmounted pressure signal for receiving
The operating mode of part, air compressor machine failure is can determine that when the single working time of air compressor machine 1 maximum setting time value is exceeded
Or gas path failure or rearmounted pressure sensor failure.
Here, in actual use, the air compressor machine 1 in pneumatic power system need to be maintained periodically, air dryer 2 is needed
Changed in time, but the pressure controller 6 of above structure is totally independent of car running computer setting, and it cannot intuitively show accordingly
Failure code and data, therefore, for convenience of later stage pneumatic power system maintenance, the present invention in pressure controller 6 set
There is signal feedback module 61, the signal feedback module 61 collects the Cumulative Elapsed Time data or precondition pressure signal of air compressor machine 1
With the difference data of rearmounted pressure signal or the separate run times of air compressor machine 1 and rearmounted pressure signal data, and when these number
Corresponding maintenance signal or fault-signal are fed back on car running computer 7 according to when reaching setting numerical value.
In use, car running computer 7 is transmitted a signal to when the Cumulative Elapsed Time of air compressor machine 1 reaches setting numerical value to show
Show that air compressor machine is maintained, transmitted a signal to when preposition pressure signal reaches setting numerical value with the difference data of rearmounted pressure signal
Car running computer 7 display change air dryer 2, when air compressor machine 1 separate run times reach setting numerical value and rearmounted pressure believe
Be signaled to when number not reaching maximal pressure force value still the display air compressor machine failure of car running computer 7 or gas-path leakage failure or after
Put the failure of pressure sensor 5.
The above, is only better embodiment of the invention, and any formal limitation is not made to the present invention, every
According to know-why of the invention to any simple modification made for any of the above embodiments, equivalent variations or modification, this hair is still fallen within
In the range of bright technical scheme.
Claims (7)
1. the pneumatic power system of a kind of new-energy automobile, include sequentially connected by gas circuit air compressor machine, air dryer,
Air accumulator and drive cylinder, are provided with rearmounted pressure sensor in the air accumulator, highest is provided with the air dryer
Pipe vent valve, it is characterised in that：Pressure controller is mounted directly on the air compressor machine, the rearmounted pressure sensor will be examined
The rearmounted pressure signal for measuring passes to pressure controller in real time, and pressure controller controls air compressor machine according to rearmounted pressure signal
Start stop operation, when the rearmounted pressure signal for detecting less than setting minimal pressure force value when start air compressor machine work, work as detection
Stop air compressor machine work when the rearmounted pressure signal for arriving is higher than the maximal pressure force value for setting.
2. the pneumatic power system of a kind of new-energy automobile as claimed in claim 1, it is characterised in that：The maximum pressure is put
Air valve is a magnetic valve, and the unlatching of the magnetic valve is controlled by the pressure controller, and pressure controller is in the rearmounted pressure for obtaining
Force signal is first closed air compressor machine and then sends instruction opens solenoid valve to carry out air dryer when reaching setting maximal pressure force value
Exhaust emptying condensed water.
3. the pneumatic power system of a kind of new-energy automobile as claimed in claim 1, it is characterised in that：The air compressor machine is appearance
Product formula air compressor.
4. the pneumatic power system of a kind of new-energy automobile as claimed in claim 3, it is characterised in that：The pressure controller
In be provided with pressure median, air compressor machine is started when the rearmounted pressure signal that it is received is less than the pressure median carries out half
Speed operation, when minimal pressure force value of the pressure signal that it is received less than setting, full speed starts air compressor machine and runs to always and reaches
Highest setting pressure value.
5. the pneumatic power system of a kind of new-energy automobile as described in claim 1-5 any claims, it is characterised in that：
The outlet side of the air compressor machine is provided with precondition pressure sensor, the precondition pressure signal that precondition pressure sensor is detected
Pass to pressure controller in real time, pressure controller according to the precondition pressure signal, rearmounted pressure signal for receiving and both
Signal difference judges air dryer operating mode.
6. the pneumatic power system of a kind of new-energy automobile as claimed in claim 5, it is characterised in that：The pressure controller
The single working time of air compressor machine can be counted, and carrys out comprehensive descision with reference to the precondition pressure signal and rearmounted pressure signal for receiving
The operating mode of pneumatic power various parts.
7. the pneumatic power system of a kind of new-energy automobile as claimed in claim 6, it is characterised in that：The pressure controller
In be provided with signal feedback module, signal feedback module collect the Cumulative Elapsed Time data or precondition pressure signal of air compressor machine with
The difference data of rearmounted pressure signal or the separate run times of air compressor machine, precondition pressure signal and rearmounted pressure signal data,
And feed back on car running computer corresponding maintenance signal or fault-signal when these data reach setting numerical value.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016213385539 | 2016-12-08 | ||
| CN201621338553 | 2016-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106870339A true CN106870339A (en) | 2017-06-20 |
Family
ID=59168181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710115580.2A Pending CN106870339A (en) | 2016-12-08 | 2017-03-01 | A kind of pneumatic power system of new-energy automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106870339A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782095A (en) * | 2019-02-15 | 2019-05-21 | 中车青岛四方机车车辆股份有限公司 | A kind of failure diagnosis apparatus and system |
| CN111071231A (en) * | 2019-12-16 | 2020-04-28 | 潍柴动力股份有限公司 | Method and device for processing gas circuit fault in vehicle |
| CN112406844A (en) * | 2019-08-22 | 2021-02-26 | 中车株洲电力机车研究所有限公司 | Train air source system and control method |
| CN115234469A (en) * | 2022-07-19 | 2022-10-25 | 华能海南发电股份有限公司东方电厂 | Air pressure air supply control system and control method |
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| CN115234469A (en) * | 2022-07-19 | 2022-10-25 | 华能海南发电股份有限公司东方电厂 | Air pressure air supply control system and control method |
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