CN109677384A - A kind of pure electric automobile inflates method for controlling pump - Google Patents
A kind of pure electric automobile inflates method for controlling pump Download PDFInfo
- Publication number
- CN109677384A CN109677384A CN201811438244.2A CN201811438244A CN109677384A CN 109677384 A CN109677384 A CN 109677384A CN 201811438244 A CN201811438244 A CN 201811438244A CN 109677384 A CN109677384 A CN 109677384A
- Authority
- CN
- China
- Prior art keywords
- threshold value
- air pressure
- baroswitch
- value
- atmospheric pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/26—Compressed-air systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
Abstract
The technical solution adopted by the present invention is that proposing that a kind of pure electric automobile inflates method for controlling pump, it is characterised by comprising: obtaining gas receiver baroswitch output level, drier baroswitch output level size, the detection atmospheric pressure value for detecting the baroceptor of braking system atmospheric pressure value is read；The first limit air pressure threshold value, the first air pressure threshold value, gas receiver baroswitch threshold value, drier baroswitch threshold value, the second air pressure threshold value are successively preset by detection atmospheric pressure value size is ascending；When gas receiver baroswitch output level is higher than the detection atmospheric pressure value of entire car controller input terminal level, baroceptor less than the first air pressure threshold value, inflating pump is opened；When drier baroswitch output level is higher than entire car controller input terminal level, the detection atmospheric pressure value of baroceptor is greater than the second air pressure threshold value, inflating pump is closed.Method and step provided by the invention is simple, it is highly-safe, the case where inflating pump under-inflation and inflating pump frequent start-stop can be effectively reduced.
Description
Technical field
The present invention relates to a kind of methods of the control of the inflating pump of automobile, and in particular to one kind is for controlling braking system gas
The control method of the pure electric automobile inflating pump of pressure.
Background technique
With the high speed development of science and technology, it is slow that the developing direction of automobile also starts the automobile driven by traditional fuel engines
The slow steering automobile being driven by electricity, and braking system of the braking system of pure electric automobile also with traditional fuel-engined vehicle have
Huge difference.
Currently, the method for controlling pump of inflating that the air-pressure brake mode of many pure electric automobiles uses is to pass through full-vehicle control
The level signal of device acquisition gas receiver baroswitch and drier baroswitch.When braking system air pressure is lower than a low pressure definite value
When gas receiver baroswitch can generate a high level signal make vehicle control unit controls inflating pump open, when braking system air pressure
Drier baroswitch, which can generate a high level signal, when higher than a high pressure definite value closes vehicle control unit controls inflating pump
It closes.But this control mode be because the air pressure of braking system that the desiccation of drier can make can reduce after inflating, if
The gas for squeezing into braking system is moister, then can be the problem of causing under-inflation after drier is handled.
And another current air-pressure brake mode relies on the measured value of baroceptor such as to control and inflate switch pump,
A lowest threshold and a highest threshold value are such as set, then certain algorithm process is carried out to the gas pressure measurement of braking system, is made
Inflating pump is opened when the gas pressure measurement of braking system is lower than lowest threshold, is closed when being higher than highest threshold value, but due to vapour
The braking system of vehicle use and environmental change meeting is so that biggish brief fluctuations occurs suddenly in the measured value of baroceptor,
The problem of to make the braking system of automobile control failure in some environments, be frequent start and stop.
Therefore, a kind of step it is simple, it is safe and reliable, control failure in under-inflation and adverse circumstances can be effectively reduced and frequency
The method of the control of the pure electric automobile inflating pump of the problem of numerous start and stop becomes very necessary.
Summary of the invention
In order to solve the above-mentioned technical problem, the air pressure of the braking system of pure electric automobile is made to obtain good control, this hair
It is bright to provide a kind of pure electric automobile and inflate method for controlling pump.
The technical solution adopted by the present invention is that proposing that a kind of pure electric automobile inflates method for controlling pump, it is characterised in that packet
It includes: obtaining gas receiver baroswitch output level, drier baroswitch output level size, read for detecting braking system
The detection atmospheric pressure value of the baroceptor of atmospheric pressure value；The first limit air pressure threshold is successively preset by detection atmospheric pressure value size is ascending
Value, the first air pressure threshold value, gas receiver baroswitch threshold value, drier baroswitch threshold value, the second air pressure threshold value；When gas receiver gas
The output level that compresses switch is higher than the detection atmospheric pressure value of entire car controller input terminal level, baroceptor less than the first air pressure threshold value
When, inflating pump is opened；When drier baroswitch output level is higher than the inspection of entire car controller input terminal level, baroceptor
When surveying atmospheric pressure value greater than the second air pressure threshold value, inflating pump is closed.
Further, this method further include: when the detection atmospheric pressure value is less than the first limit air pressure threshold value, and inflating pump connects
The continuous working time oversteps the extreme limit when inflating the time and detecting atmospheric pressure value and be not up to the first air pressure threshold value, and entire car controller generates second level
Troubleshooting signal travels vehicle in a manner of walking lamely.
Further, the gas receiver baroswitch is when braking system atmospheric pressure value is less than gas receiver baroswitch threshold value,
The level higher than whole-control system input terminal level can be exported；The drier baroswitch is greater than in braking system atmospheric pressure value
When drier baroswitch threshold value, the level higher than whole-control system input terminal level can be just exported.
Further, the limit inflate the time be 8 minutes.
Further, first air pressure threshold value is 0.68Mpa, the second air pressure threshold value is 0.88Mpa.
Further, first limit air pressure threshold value is 0.48Mpa.
Further, the detection atmospheric pressure value is the preceding bridge air pressure detected value of braking system and being averaged for rear axle air pressure detected value
Value.
The present invention is matched by gas receiver baroswitch, drier baroswitch, baroceptor and whole-control system
It closes to control the pumping action of inflating pump, thus the problem of being effectively reduced inflating pump frequent start-stop and under-inflation；This hair
The method and step of bright offer is simple, it is highly-safe, the case where inflating pump under-inflation and inflating pump frequent start-stop can be effectively reduced.
Detailed description of the invention
Fig. 1 be a kind of pure electric automobile of the invention inflate method for controlling pump main object information exchange figure；
Fig. 2 is that a kind of pure electric automobile of the invention inflates the flow chart of method for controlling pump.
Specific embodiment
In order to illustrate more clearly of embodiment of the present invention and/or technical solution in the prior art, will compare below attached
Figure illustrates a specific embodiment of the invention.It should be evident that the accompanying drawings in the following description is only some implementations of the invention
Mode for those of ordinary skill in the art without creative efforts, can also be according to these attached drawings
Other attached drawings are obtained, and obtain other embodiments.In addition, be related to orientation belongs to the relative position only indicated between each component
Relationship, rather than absolute positional relation.
As shown in Figure 1, the control main body of embodiments of the present invention is whole-control system, effective object is inflating pump control
Device and inflating pump processed.Whole-control system can obtain the output level letter of the baroswitch of gas receiver and drier in this method
Number, the preceding bridge air pressure and rear axle air pressure for the braking system that the baroceptor can will test are sent to whole-control system,
And then make whole-control system can be by method provided by the invention by sending inflating pump unlatching/closing and believing to inflating pump controller
Number control the open and close of inflating pump.The pump controller of inflating can be to the work feelings of whole-control system transmission inflating pump
Condition information, vehicle under normal circumstances, preceding bridge and the rear axle air pressure of electric car are almost the same, bridge air pressure sensings before institute
The measured value of device and rear axle baroceptor is almost the same.
In embodiments of the present invention, the gas receiver baroswitch is less than inflator air pressure in the storage of braking system atmospheric pressure value and opens
When closing threshold value, the air pressure inside of gas receiver can be significantly hotter than the air pressure inside of braking system, so that gas receiver baroswitch be made to produce
The raw level for being higher than whole-control system input terminal level；The drier baroswitch is greater than drying in braking system atmospheric pressure value
When device baroswitch threshold value, drier baroswitch can be opened under the effect of the pressure to be begun for the water mist in braking system to be vented,
To generate the level for being higher than whole-control system input terminal level.
As shown in Fig. 2, a kind of pure electric automobile that embodiments of the present invention provide is inflated method for controlling pump and is specifically included
Following steps:
S1: obtaining gas receiver baroswitch output level, drier baroswitch output level size, reads for detecting braking
The detection atmospheric pressure value of the baroceptor of system atmospheric pressure value.
Detection atmospheric pressure value in the step S1 of present embodiment includes the preceding bridge air pressure detected value and rear axle gas of braking system
The detection atmospheric pressure value pressing detected value, and reading in S1 is the average value of preceding bridge air pressure detected value and rear axle air pressure detected value；It is making
Under dynamic system and the normal situation of whole baroceptors, the preceding bridge air pressure detected value and the rear axle air pressure detected value are big
Body is consistent, and error can be effectively reduced by being averaged.
S2: the first limit air pressure threshold value, the first air pressure threshold value, gas storage are successively preset by detection atmospheric pressure value size is ascending
Cylinder baroswitch threshold value, drier baroswitch threshold value, the second air pressure threshold value.
Gas receiver baroswitch described in the step S2 of present embodiment is less than gas receiver air pressure in braking system atmospheric pressure value
When switching threshold, the level higher than whole-control system input terminal level can be just exported；The drier baroswitch is being braked
When system atmospheric pressure value is greater than drier baroswitch threshold value, the level higher than whole-control system input terminal level can be just exported.
Since baroceptor measurement has certain fluctuation, and by the standard of the generation control signal of baroceptor be set as with
Gas receiver baroswitch threshold value, drier baroswitch threshold value are identical to will cause control confusion, therefore, is guaranteeing braking system gas
In the case where pressing safety, the first air pressure threshold value is set below gas receiver baroswitch threshold value, the second air pressure threshold value is set as high
In drier baroswitch threshold value, to keep this method control more convenient, accurate.
S3: judge that gas receiver baroswitch output level is higher than whole-control system input terminal level, baroceptor
Atmospheric pressure value is detected less than the first air pressure threshold value.
S4: inflating pump is opened.
S5: judge that drier baroswitch output level is higher than whole-control system input terminal level, baroceptor
It detects atmospheric pressure value and is greater than the second air pressure threshold value.
S6: inflating pump is closed.
In the step S3 and S5 of present embodiment, since the use and environmental change of the braking system of automobile can make to bring about the desired sensation
There are biggish brief fluctuations suddenly in the measured value of pressure sensor, if only being opened according to the detection atmospheric pressure value of baroceptor
Open/inflating pump is closed, the braking system of automobile may be made to occur in some adverse circumstances controlling failure, unexpected start and stop are asked
Topic, so the probability that this method can improve control efficiency, reduce the unexpected start and stop of inflating pump, saves vast resources.
Due to the effect of drier in the step S5 of present embodiment, braking system its air pressure inside after inflation can be made
Can die-off within a certain period of time, and merely according to the detection atmospheric pressure value of drier baroswitch output level or baroceptor come
The problem of pump work is inflated in control, may be according at under-inflation and inflating pump frequent start-stop.And the present invention is according to gas receiver gas
Compress switch and close output level size with drier baroswitch, the detection atmospheric pressure value of baroceptor inflates pump work to control,
Braking system air pressure is effectively controlled in range of safety operation, to reduce under-inflation and inflating pump frequent start-stop
Problem.
In embodiments of the present invention, when the detection atmospheric pressure value is less than the first limit air pressure threshold value, and inflating pump connects
The continuous working time oversteps the extreme limit when inflating the time and detecting atmospheric pressure value and be not up to the first air pressure threshold value, and entire car controller generates second level
Troubleshooting signal travels vehicle in a manner of walking lamely, to ensure that the electric car in braking system air pressure wretched insufficiency
Driving safety.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (7)
1. a kind of pure electric automobile inflates method for controlling pump, characterized by comprising:
Gas receiver baroswitch output level, drier baroswitch output level size are obtained, is read for detecting braking system
The detection atmospheric pressure value of the baroceptor of system atmospheric pressure value；
The first limit air pressure threshold value, the first air pressure threshold value, gas receiver air pressure are successively preset by detection atmospheric pressure value size is ascending
Switching threshold, drier baroswitch threshold value, the second air pressure threshold value；
When gas receiver baroswitch output level is higher than the detection atmospheric pressure value of whole-control system input terminal level, baroceptor
When less than the first air pressure threshold value, inflating pump is opened；
When drier baroswitch output level is higher than the detection atmospheric pressure value of whole-control system input terminal level, baroceptor
When greater than the second air pressure threshold value, inflating pump is closed.
2. a kind of pure electric automobile as described in claim 1 inflates method for controlling pump, which is characterized in that when the detection air pressure
Value is less than the first limit air pressure threshold value, and inflating pump stream time oversteps the extreme limit and inflates the time and detect atmospheric pressure value and do not reach
When to the first air pressure threshold value, whole-control system, which generates secondary failure processing signal, travels vehicle in a manner of walking lamely.
3. a kind of pure electric automobile as described in claim 1 inflates method for controlling pump, which is characterized in that the gas receiver air pressure
Switch can just be exported when braking system atmospheric pressure value is less than gas receiver baroswitch threshold value higher than whole-control system input terminal electricity
Flat level；The drier baroswitch can just be exported when braking system atmospheric pressure value is greater than drier baroswitch threshold value
Higher than the level of whole-control system input terminal level.
4. a kind of pure electric automobile as described in claim 1 inflates method for controlling pump, which is characterized in that when the limit is inflated
Between be 8 minutes.
5. a kind of pure electric automobile as described in claim 1 inflates method for controlling pump, which is characterized in that the first air pressure threshold
Value is 0.68Mpa, the second air pressure threshold value is 0.88Mpa.
6. a kind of pure electric automobile as described in claim 1 inflates method for controlling pump, which is characterized in that first limit gas
Pressure threshold value is 0.48Mpa.
7. a kind of pure electric automobile as described in claim 1 inflates method for controlling pump, which is characterized in that the detection atmospheric pressure value
For the preceding bridge air pressure of braking system and the average value of rear axle air pressure detected value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811438244.2A CN109677384A (en) | 2018-11-29 | 2018-11-29 | A kind of pure electric automobile inflates method for controlling pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811438244.2A CN109677384A (en) | 2018-11-29 | 2018-11-29 | A kind of pure electric automobile inflates method for controlling pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109677384A true CN109677384A (en) | 2019-04-26 |
Family
ID=66185026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811438244.2A Pending CN109677384A (en) | 2018-11-29 | 2018-11-29 | A kind of pure electric automobile inflates method for controlling pump |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076095A (en) * | 2019-12-04 | 2020-04-28 | 珠海格力电器股份有限公司 | Air leakage detection method and device, storage medium and vehicle |
| CN111137268A (en) * | 2019-12-31 | 2020-05-12 | 潍柴动力股份有限公司 | Inflating device and inflating method of vehicle inflating pump |
| CN114458586A (en) * | 2020-11-10 | 2022-05-10 | 陕西汽车集团有限责任公司 | Inflating pump control method |
| CN117681842A (en) * | 2024-02-04 | 2024-03-12 | 临工重机股份有限公司 | Electric inflating pump control system and method and electric automobile |
-
2018
- 2018-11-29 CN CN201811438244.2A patent/CN109677384A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076095A (en) * | 2019-12-04 | 2020-04-28 | 珠海格力电器股份有限公司 | Air leakage detection method and device, storage medium and vehicle |
| CN111137268A (en) * | 2019-12-31 | 2020-05-12 | 潍柴动力股份有限公司 | Inflating device and inflating method of vehicle inflating pump |
| CN111137268B (en) * | 2019-12-31 | 2021-04-16 | 潍柴动力股份有限公司 | Inflating device and inflating method of vehicle inflating pump |
| CN114458586A (en) * | 2020-11-10 | 2022-05-10 | 陕西汽车集团有限责任公司 | Inflating pump control method |
| CN117681842A (en) * | 2024-02-04 | 2024-03-12 | 临工重机股份有限公司 | Electric inflating pump control system and method and electric automobile |
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Application publication date: 20190426 |
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