CN110406514A - Control method, device and the automobile of vacuum pump operation threshold - Google Patents
Control method, device and the automobile of vacuum pump operation threshold Download PDFInfo
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- CN110406514A CN110406514A CN201810403593.4A CN201810403593A CN110406514A CN 110406514 A CN110406514 A CN 110406514A CN 201810403593 A CN201810403593 A CN 201810403593A CN 110406514 A CN110406514 A CN 110406514A
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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
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
Abstract
The invention discloses control method, device and the automobiles of a kind of vacuum pump operation threshold.Wherein, this method comprises: making the first preset duration of vacuum pump work, the vacuum degree of vacuum pump is made to become current vacuum level from initial depression；Judge whether current vacuum level reaches initialization threshold value；When the judgment result is No, initialization threshold value is adjusted according to preset condition, initialization threshold value is made to become work at present threshold value.The present invention was solved due to the technical issues of by meeting the normal operation of high altitude localities vacuum pump to barometric pressure sensor is added in braking system, caused vehicle manufacturing cost increases in the prior art.
Description
Technical field
The present invention relates to automotive engineering application field, in particular to a kind of vacuum pump operation threshold control method,
Device and automobile.
Background technique
Due to the development of auto technology, new-energy automobile is in short supply with world energy sources, so that automobile market is urgently sought newly
Automobile product to alleviate energy shortages the problem of and come into being.Wherein, new-energy automobile includes: pure electric vehicle power automobile, combustion
Natural gas power vehicle or hybrid vehicle (oil electricity or pneumoelectric automobile).
Wherein, by taking the vacuum pump being used on electric vehicle as an example, the purpose of the vacuum pump is to provide vacuum for braking system
Source enables booster to work, and driver can control vehicle deceleration with limited strength of one's legs.Vacuum pump needs to provide centainly true
Reciprocal of duty cycle can guarantee effective progress of braking.But existing vacuum pump control mode is mostly vacuum level threshold control at present, i.e.,
Sensor is set in vacuum tube or in vacuum booster, detects pressure value, if pipeline inner pressure is higher than target value, illustrates vacuum
Spend low, then vacuum pump opens work, until pipeline inner pressure is reduced to target value, then closes vacuum pump.Cracking pressure and closing
Pressure is fixed value.The unlatching value and close value of usual vacuum pump are to mark relative to sea-level atmosphere pressure 1011mbar
Fixed, the air pressure that usual vacuum pump is opened is 400mbar, is closed as 200mbar, and the vacuum degree in braking system is 600-
800mbar。
In high altitude localities, such as at 4000 meters of hypo, atmospheric pressure 600mbar, according to the logic on former sea level, vacuum
The air pressure that pump is opened is 400mbar, is closed as 200mbar, then the vacuum degree in vacuum line is maximum 400mbar
(atmospheric pressure-vacuum overpressure), minimum are 200mbar, and driver feels that pedal hardens, not can control vehicle deceleration.One
As in order to solve this problem, some producers using barometric pressure sensor is increased, adjusted on the basis of atmospheric pressure unlatching and
The threshold value of closing.This approach increases a sensor, integral vehicle cost increases.
For it is above-mentioned due in the prior art by braking system add barometric pressure sensor to meet High aititude
The problem of normal operation of regional vacuum pump, caused vehicle manufacturing cost increases, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides control method, device and the automobiles of a kind of vacuum pump operation threshold, at least to solve
Due in the prior art by braking system add barometric pressure sensor to meet the normal of high altitude localities vacuum pump
The technical issues of operation, caused vehicle manufacturing cost increases.
According to an aspect of an embodiment of the present invention, a kind of control method of vacuum pump operation threshold is provided, comprising:
S1, make the first preset duration of vacuum pump work, the vacuum degree of vacuum pump is made to become current vacuum level from initial depression；S2, sentence
Whether disconnected current vacuum level reaches initialization threshold value；S3, when the judgment result is No adjusts initialization according to preset condition
Threshold value makes initialization threshold value become work at present threshold value.
Optionally, after step S3 further include: S4, judge whether current vacuum level reaches work at present threshold value；S5, judging
When being as a result no, using the current vacuum level in this circulation as the initial depression recycled, in this circulation next time
Work at present threshold value repeats step S1-S5, until current vacuum level reaches this as the initialization threshold value recycled next time
Work at present threshold value in circulation.
Further, optionally, in the case where initialization threshold value includes opening vacuum degree and closing vacuum degree, foundation
Preset condition adjusts initialization threshold value, and so that initialization threshold value is become work at present threshold value includes: with the downward of predetermined gradient value
Close vacuum degree；According to the closing vacuum degree after downward, is lowered with preset ratio value and open vacuum degree.
Optionally, after step S1, this method further include: after the second preset duration of vacuum pump work, monitor vacuum
The decline of the vacuum degree of pump exports vacuum pump failure if drop-out value is greater than preset calibrations value.
Optionally, this method further include: in any drive cycle, initial operation threshold is identical default
Operation threshold, wherein initial operation threshold includes: default to open vacuum degree and default close vacuum degree.
Optionally, this method further include: in the case where the judgment result is yes, using work at present threshold value as the work of vacuum pump
Make threshold value.
Optionally, step S5 further include: when the judgment result is yes, using work at present threshold value as the operating threshold of vacuum pump
Value.
Optionally, initialization threshold value is adjusted according to preset condition, initialization threshold value is made to become work at present threshold value packet
Include: inquiry current vacuum level is corresponding to make vacuum pump work normally the matched operation threshold of institute, is with the matched operation threshold of institute
The work at present threshold value of vacuum pump.
According to another aspect of an embodiment of the present invention, a kind of control device of vacuum pump operation threshold is additionally provided, comprising:
Module is adjusted, for making the first preset duration of vacuum pump work, the vacuum degree of vacuum pump is made to become current true from initial depression
Reciprocal of duty cycle；Judgment module, for judging whether current vacuum level reaches initialization threshold value；Control module, in judging result
When being no, initialization threshold value is adjusted according to preset condition, initialization threshold value is made to become work at present threshold value.
Another aspect according to an embodiment of the present invention, additionally provides a kind of automobile, comprising: vacuum pump control system, wherein
Vacuum pump control system includes the control device of vacuum pump operation threshold, and the control device of vacuum pump operation threshold is above-mentioned vacuum
The control device of pump work threshold value.
In embodiments of the present invention, by the way of the vacuum degree according to preset ratio self-regulation, by making vacuum pump work
Make the first preset duration, the vacuum degree of vacuum pump is made to become current vacuum level from initial depression；Whether judge current vacuum level
Reach initialization threshold value；When the judgment result is No, initialization threshold value is adjusted according to preset condition, makes initialization threshold value
Become work at present threshold value, reaches the mesh realized by control logic in the adjustment of low atmospheric pressure area vacuum pump control threshold
, to realize the technical effect for reducing vehicle manufacturing cost, and then solve due in the prior art by braking system
Barometric pressure sensor is added in system to meet the normal operation of high altitude localities vacuum pump, caused vehicle manufacturing cost increases
The technical issues of.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of flow diagram of the control method of vacuum pump operation threshold according to an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the control device of vacuum pump operation threshold according to an embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
Embodiment one
According to embodiments of the present invention, a kind of control method embodiment of vacuum pump operation threshold is provided, needs to illustrate
It is that step shown in the flowchart of the accompanying drawings can execute in a computer system such as a set of computer executable instructions,
Also, although logical order is shown in flow charts, and it in some cases, can be to be different from sequence execution herein
Shown or described step.
Fig. 1 is a kind of flow diagram of the control method of vacuum pump operation threshold according to an embodiment of the present invention, such as Fig. 1
Shown, this method comprises the following steps:
S1, make the first preset duration of vacuum pump work, the vacuum degree of vacuum pump is made to become current vacuum from initial depression
Degree；
S2, judge whether current vacuum level reaches initialization threshold value；
S3, when the judgment result is No adjusts initialization threshold value according to preset condition, initialization threshold value is made to become working as
Preceding operation threshold.
Optionally, after step S3 further include:
S4, judge whether current vacuum level reaches work at present threshold value；
S5, when the judgment result is No, using the current vacuum level in this circulation next time as the initial vacuum recycled
Degree repeats step S1-S5 using the work at present threshold value in this circulation next time as the initialization threshold value recycled, until
Current vacuum level reaches the work at present threshold value in this circulation.
The control method of vacuum pump operation threshold provided by the present application can be adapted for the vacuum pump braking of high altitude localities
Control, be different from the prior art in by addition barometric pressure sensor measure atmospheric pressure, and then according to atmospheric pressure adjust open
With the threshold value of closing, and the application do not need addition barometric pressure sensor, be self-regulated, obtained according to the vacuum degree of vacuum pump
It to the operation threshold of the vacuum pump of suitable current locale, realizes under conditions of not increasing cost, solves in Different Altitude
Area is to guarantee that brake pedal force in the controllable range of manpower, increases the reliability of vehicle.
Specifically, as shown in Figure 1, the adjustment mode can wrap firstly, adjusting initialization threshold value according to preset condition
It includes: zooming in or out initialization threshold value in the form of ratio, or increase and decrease initialization threshold value in a manner of through plus-minus constant,
And then initialization threshold value is made to become work at present threshold value, thus further true to what is detected according to work at present threshold value
Reciprocal of duty cycle is further detected, if the vacuum degree is not up to work at present threshold value, repeats step S1 to S4, until current true
Reciprocal of duty cycle reaches the work at present threshold value in this circulation.
The control method of vacuum pump operation threshold provided by the present application includes two kinds of implementations, scheme one: according to detection
To vacuum degree and operation threshold be compared, adjust operation threshold, until driving vacuum pump effective brake；Scheme two: according to
The vacuum degree detected, even if working normally the matched operation threshold of institute according to this vacuum degree vacuum pump of the matching prestored in vehicle
Directly it is adjusted；Wherein, above-mentioned two scheme specific implementation is as follows:
Scheme one: gradient type is adjusted
That is, gradually detecting the vacuum degree of vacuum pump according to operation threshold adjusted, and according to the feedback of vacuum degree, adjustment
Operation threshold, by circulation adjustment until effectively realizing that vacuum pump operates normally.
In embodiments of the present invention, by the way of the vacuum degree according to preset ratio self-regulation, by making vacuum pump work
Make the first preset duration, the vacuum degree of vacuum pump is made to become current vacuum level from initial depression；Whether judge current vacuum level
Reach initialization threshold value；When the judgment result is No, initialization threshold value is adjusted according to preset condition, makes initialization threshold value
Become work at present threshold value, reaches the mesh realized by control logic in the adjustment of low atmospheric pressure area vacuum pump control threshold
, to realize the technical effect for reducing vehicle manufacturing cost, and then solve due in the prior art by braking system
Barometric pressure sensor is added in system to meet the normal operation of high altitude localities vacuum pump, caused vehicle manufacturing cost increases
The technical issues of.
Optionally, S1 makes the first preset duration of vacuum pump work, the vacuum degree of vacuum pump is made to become working as from initial depression
Initial vacuum degree includes:
Step1 stops after the first preset duration of vacuum pump work；
Step2, judges whether the current vacuum level of vacuum pump reaches initialization threshold value；
Optionally, in the case where initialization threshold value includes opening vacuum degree and closing vacuum degree, step S3 is according to pre-
If condition adjusts initialization threshold value, so that initialization threshold value is become work at present threshold value and include:
Step A is lowered with predetermined gradient value and is closed vacuum degree；
Step B is lowered with preset ratio value according to the closing vacuum degree after downward and is opened vacuum degree.
Specifically, by predetermined gradient to lower close vacuum degree, can for need adjust close vacuum degree and
In the case where opening vacuum degree, is reduced using constant as gradient and close vacuum degree, and then according to closing vacuum degree adjusted
Value is lowered according to preset ratio value and opens vacuum degree.
Such as: assuming that closing vacuum degree is Qmba, predetermined gradient X, preset ratio value is W%, then pass adjusted
Close vacuum degree are as follows: (Q-X) mba, wherein mba is pressure unit, Q > (Q-X)；According to closing vacuum degree root adjusted
It is lowered according to preset ratio value and opens vacuum degree are as follows: (Q-X) × W%mba.
Optionally, after step S1, the control method of vacuum pump operation threshold provided by the present application further include:
S6 monitors the decline of the vacuum degree of vacuum pump after the second preset duration of vacuum pump work, if drop-out value is greater than
Preset calibrations value then exports vacuum pump failure.
Specifically, being monitored after S1 is finished by S6, if drop-out value is less than preset calibrations value, execute
Step S2-S5；If drop-out value is greater than preset calibrations value, S6 is executed, that is, in the case where drop-out value is greater than preset calibrations value,
Illustrate vacuum pump failure, is alerted.
Optionally, the control method of vacuum pump operation threshold provided by the present application further include:
Step S106, in any drive cycle, initial operation threshold is identical preset operation threshold,
Wherein, initial operation threshold includes: default unlatching vacuum degree and default closing vacuum degree.
Optionally, the control method of vacuum pump operation threshold provided by the present application further include:
Step3 determines vacuum pump normal operation in the case where the judgment result is yes.
Specifically, illustrating the vacuum pump normal operation after judging that vacuum degree reaches operation threshold, can continue to as vapour
Vehicle provides auxiliary braking.
Optionally, step S5 further include:
S6, in the case where the judgment result is yes, using work at present threshold value as the operation threshold of vacuum pump.
Specifically, illustrate the vacuum pump normal operation after judging that vacuum degree reaches operation threshold adjusted, it can
It continues as automobile and auxiliary braking is provided.
Scheme two: directly adjusting according to the operation threshold of matching this vacuum degree prestored in vehicle and obtain operation threshold, and
Vacuum degree according to operation threshold adjusted adjustment vacuum pump
Optionally, initialization threshold value is adjusted according to preset condition, initialization threshold value is made to become work at present threshold value packet
It includes:
Inquiry current vacuum level is corresponding to make vacuum pump work normally the matched operation threshold of institute, with the matched operating threshold of institute
Value is the work at present threshold value of vacuum pump.
Specifically, being different from scheme one, the vacuum degree that vacuum pump is adjusted in scheme two passes through prestored in enquiring vehicle
The mode of operation threshold with this vacuum degree is directly adjusted the operation threshold, so that the vacuum degree detected can
Reach the operation threshold after adjusting, to realize braking.
If can directly use for example, vacuum degree becomes 720mbar after taking out 3s and close vacuum degree 700mbar as most
The operation threshold of vacuum pump afterwards, and do not have to from 800mbar be adjusted to 750mbar such as scheme one, the circulation that tries again from
750mbar is adjusted to 700mbar, recycles adjustment a step by a step like that and obtains the operation threshold；
It should be noted that the operation threshold adjusted of scheme one gradually adjusted, it is accurate to be able to ascend adjustment
The use feeling of degree and user.And scheme two, by so that it is work at present that vacuum pump, which works normally the matched operation threshold of institute,
Threshold value, that is, by prestored in enquiring vehicle matching current vacuum level operation threshold disease as work at present threshold value in this way into
The adjustment mode that row settles at one go improves the response efficiency of automotive interior control；It is more acurrate that scheme one is compared to scheme two,
Application is stronger in actual vehicle, this is because if vehicle driving in the road conditions jolted, pressure sensor measurement vacuum
Angle value may inaccuracy, such as when vehicle jolts, may measure the vacuum degree come is 620mbar, with the method tune of scheme two
" open vacuum degree 450mbar, close vacuum degree 600mbar " is reformed into if whole, and actual vacuum degree is
750mbar should " be opened vacuum degree 562.5mbar, close vacuum degree if the method for scheme one adjusts operation threshold
Value 750mbar ".Therefore the method for scheme one adjusts more acurrate than the method for scheme two.
In addition to this, the control method of vacuum pump operation threshold provided by the present application is using the above scheme one or scheme two
During, it can also include: to be shown in a manner of prompt information in the case where the vacuum degree detected is not up to operation threshold
Show the console in automobile, the selection by acquiring user instructs, and executes and chooses the corresponding vacuum pump braking scheme of instruction.
To sum up, the method for the control method of vacuum pump operation threshold provided by the present application can be adapted for new-energy automobile,
Wherein, which may include: electric automobile, oil and electricity hybrid vehicle or gas-electricity power combined vehicle.
The control method of vacuum pump operation threshold provided by the present application is based on Conventional braking systems, which includes:
Vacuum pump, vacuum servo, vacuum pressure sensor and vacuum tube composition.It is realized by control logic in low atmospheric pressure area
The adjustment of vacuum pump control threshold.
The opening and closing threshold value of the control method intermediate pump of vacuum pump operation threshold provided by the present application is and atmosphere
Press associated value, rather than fixed value.The prolonged non-productive work of vacuum pump in order to prevent, the longest work provided with vacuum pump
Duration avoids vacuum pump overheat from burning.
The control method of vacuum pump operation threshold provided by the present application can guarantee that vehicle uses on high hypo area, does not send out
Due to strength of one's legs deficiency, vehicle braking is uncontrollable and accident occurs for life.Meanwhile it also substantially increasing high hypo area customer and using system
Dynamic confidence sense.In addition to this, it is most important that increase barometric pressure sensor scheme compared to the prior art, reduce into
This.
Embodiment two
According to another aspect of an embodiment of the present invention, a kind of control device of vacuum pump operation threshold is additionally provided, Fig. 2 is
The structural schematic diagram of the control device of vacuum pump operation threshold according to an embodiment of the present invention, as shown in Figure 2, comprising:
Adjust module 22 makes the vacuum degree of vacuum pump by initial depression for making the first preset duration of vacuum pump work
Become current vacuum level；Judgment module 24, for judging whether current vacuum level reaches initialization threshold value；Control module 26,
For when the judgment result is No, adjusting initialization threshold value according to preset condition, initialization threshold value being made to become work at present
Threshold value.
In embodiments of the present invention, by the way of the vacuum degree according to preset ratio self-regulation, by making vacuum pump work
Make the first preset duration, the vacuum degree of vacuum pump is made to become current vacuum level from initial depression；Whether judge current vacuum level
Reach initialization threshold value；When the judgment result is No, initialization threshold value is adjusted according to preset condition, makes initialization threshold value
Become work at present threshold value, reaches the mesh realized by control logic in the adjustment of low atmospheric pressure area vacuum pump control threshold
, to realize the technical effect for reducing vehicle manufacturing cost, and then solve due in the prior art by braking system
Barometric pressure sensor is added in system to meet the normal operation of high altitude localities vacuum pump, caused vehicle manufacturing cost increases
The technical issues of.
Optionally, the control device of vacuum pump operation threshold provided by the present application further include:
Threshold value judgment module, for judging whether current vacuum level reaches work at present threshold value；Threshold control block is used for
When the judgment result is No, it using the current vacuum level in this circulation as the initial depression recycled next time, is followed with this
Work at present threshold value in ring repeats adjustment module 22 to threshold control block pair as the initialization threshold value recycled next time
The step of answering, until current vacuum level reaches the work at present threshold value in this circulation.
Further, optionally, control module 26 includes: first control unit, for including opening in initialization threshold value
In the case where opening vacuum degree and closing vacuum degree, is lowered with predetermined gradient value and close vacuum degree；Second control unit is used for root
According to the closing vacuum degree after downward, is lowered with preset ratio value and open vacuum degree.
Optionally, the control device of vacuum pump operation threshold provided by the present application further include: monitoring modular, for making very
Empty the first preset duration of pump work, after making the vacuum degree of vacuum pump become current vacuum level from initial depression, in vacuum pump
After second preset duration that works, the decline of the vacuum degree of vacuum pump is monitored, if drop-out value is greater than preset calibrations value, output is true
Sky pump breaks down.
Optionally, the control device of vacuum pump operation threshold provided by the present application further include:
First configuration module, in any drive cycle, initial operation threshold to be identical preset
Operation threshold, wherein initial operation threshold includes: default unlatching vacuum degree and default closing vacuum degree.
Optionally, the control device of vacuum pump operation threshold provided by the present application further include:
Second configuration module is used in the case where the judgment result is yes, using work at present threshold value as the work of vacuum pump
Threshold value.
Optionally, threshold control block further include:
Determination unit is used for when the judgment result is yes, using work at present threshold value as the operation threshold of vacuum pump.
Optionally, control module 26 includes: third control unit, and for inquiring, current vacuum level is corresponding to make vacuum pump just
The matched operation threshold of often work institute, using matched operation threshold as the work at present threshold value of vacuum pump.
Embodiment three
Another aspect according to an embodiment of the present invention, additionally provides a kind of automobile, comprising: vacuum pump control system, wherein
Vacuum pump control system includes the control device of vacuum pump operation threshold, and the control device of vacuum pump operation threshold is above-mentioned vacuum
The control device of pump work threshold value.
Optionally, automobile includes: new-energy automobile.
Wherein, new-energy automobile provided by the present application includes: that pure electric vehicle power automobile, combustion natural gas power vehicle or mixing are dynamic
Power automobile (oil electricity or pneumoelectric automobile).
It should be noted that new-energy automobile provided by the present application is only illustrated for above-mentioned, with development in science and technology
On the basis of being further discovered that emerging energy and/or clean reproducible energy, the application is to the automobile for using above-mentioned energy source type
Or traffic instrument is not specifically limited, and is subject to and is realized automobile provided by the present application.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of unit or module
It connects, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can for personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes: that USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. be various to can store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of control method of vacuum pump operation threshold characterized by comprising
S1, make the first preset duration of vacuum pump work, the vacuum degree of the vacuum pump is made to become current vacuum from initial depression
Degree；
S2, judge whether the current vacuum level reaches initialization threshold value；
S3, when the judgment result is No adjusts the initialization threshold value according to preset condition, initialization threshold value is made to become working as
Preceding operation threshold.
2. the control method of vacuum pump operation threshold according to claim 1, which is characterized in that after step S3 further include:
S4, judge whether the current vacuum level reaches the work at present threshold value；
S5, when the judgment result is No, using the current vacuum level in this circulation next time as the initial depression recycled, with
Work at present threshold value in this circulation repeats step S1-S5, works as until described as the initialization threshold value recycled next time
Initial vacuum degree reaches the work at present threshold value in this described circulation.
3. the control method of vacuum pump operation threshold according to claim 2, which is characterized in that in the initialization threshold
It is described to adjust the initialization threshold value according to preset condition in the case that value includes unlatching vacuum degree and closes vacuum degree, make
Initialization threshold value becomes work at present threshold value
The closing vacuum degree is lowered with predetermined gradient value；
According to the closing vacuum degree after the downward, the unlatching vacuum degree is lowered with preset ratio value.
4. the control method of vacuum pump operation threshold according to claim 1, which is characterized in that after step S1, institute
State method further include:
After second preset duration of vacuum pump work, the decline of the vacuum degree of the vacuum pump is monitored, if drop-out value is big
In preset calibrations value, then exports the vacuum pump and break down.
5. according to claim 1 to the control method of any vacuum pump operation threshold in 4, which is characterized in that the side
Method further include:
In any drive cycle, the initial operation threshold is identical preset operation threshold, wherein described
The initial operation threshold includes: default unlatching vacuum degree and default closing vacuum degree.
6. the control method of vacuum pump operation threshold according to claim 1, which is characterized in that the method also includes:
When the judgment result is yes, using the work at present threshold value as the operation threshold of vacuum pump.
7. the control method of vacuum pump operation threshold according to claim 2, which is characterized in that step S5 further include:
It when the judgment result is yes, is the operation threshold of the vacuum pump with the work at present threshold value.
8. the control method of vacuum pump operation threshold according to claim 1, which is characterized in that described according to preset condition
The initialization threshold value is adjusted, makes initialization threshold value become work at present threshold value to include:
Inquire that the current vacuum level is corresponding to make vacuum pump work normally the matched operation threshold of institute, with the matched work of institute
Make the work at present threshold value that threshold value is the vacuum pump.
9. a kind of control device of vacuum pump operation threshold characterized by comprising
Adjusting module becomes the vacuum degree of the vacuum pump by initial depression for making the first preset duration of vacuum pump work
For current vacuum level；
Judgment module, for judging whether the current vacuum level reaches initialization threshold value；
Control module, for when the judgment result is No, adjusting the initialization threshold value according to preset condition, making initialization
Threshold value becomes work at present threshold value.
10. a kind of automobile characterized by comprising vacuum pump control system, wherein the vacuum pump control system includes true
The control device of empty pump work threshold value, the control device of the vacuum pump operation threshold are vacuum pump work as claimed in claim 9
Make the control device of threshold value.
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Denomination of invention: Control method, device and vehicle for working threshold of vacuum pump Effective date of registration: 20211213 Granted publication date: 20201113 Pledgee: BEIJING AUTOMOTIVE GROUP Co.,Ltd. Pledgor: Borgward Automotive (China) Co., Ltd. Registration number: Y2021990001167 |
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Date of cancellation: 20231201 Granted publication date: 20201113 Pledgee: BEIJING AUTOMOTIVE GROUP Co.,Ltd. Pledgor: Beijing baowo Automobile Co.,Ltd.|Borgward Automotive (China) Co., Ltd. Registration number: Y2021990001167 |