CN109398337A - The control method of electronic vacuum force aid system - Google Patents
The control method of electronic vacuum force aid system Download PDFInfo
- Publication number
- CN109398337A CN109398337A CN201811101561.5A CN201811101561A CN109398337A CN 109398337 A CN109398337 A CN 109398337A CN 201811101561 A CN201811101561 A CN 201811101561A CN 109398337 A CN109398337 A CN 109398337A
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- CN
- China
- Prior art keywords
- vacuum pump
- control method
- vacuum
- aid system
- detecting
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- 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.)
- Pending
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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
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
-
- 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
- B60T13/72—Electrical control in fluid-pressure brake systems in vacuum systems or vacuum booster units
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a kind of control methods of electronic vacuum force aid system.The control method includes: detection speed signal；When detecting the speed numerical value of speed signal reaction lower than certain numerical value, the working condition of vacuum pump is detected；When detecting the working condition of vacuum pump to open, the operating time of vacuum pump is detected；When the operating time for detecting vacuum pump is greater than service life protection threshold value, vacuum pump is closed.Based on the present invention, which can detecte vacuum pump and works under abnormal operation, and close vacuum pump when detecting vacuum pump abuse, avoids vacuum pump abuse, plays the protective effect to vacuum pump, extend the service life of vacuum pump.
Description
Technical field
The present invention relates to a kind of electron controls technology, in particular to a kind of control method of electronic vacuum force aid system.
Background technique
Electronic vacuum force aid system is component part important in brake system of car, and vacuum pump therein is helped for vacuum
Power device provides vacuum degree and forms pressure difference, and vacuum booster suitably increases brake pedal force using the pressure difference, helps driver more preferable
Carry out brake operation.During drive routine, driver sometimes can in the case where not needing to step on braking brake (such as vehicle
Static or Ultra-Low Speed traveling) it disorderly touches on the brake for a long time, it works under abnormal operation so as to cause vacuum pump, having occurred need not
The loss wanted.
Summary of the invention
An embodiment provides a kind of control method of electronic vacuum force aid system, which includes
Following steps:
Detect speed signal；
When detecting the speed numerical value of speed signal reaction lower than certain numerical value, the working condition of vacuum pump is detected；
When detecting the working condition of vacuum pump to open, the operating time of vacuum pump is detected；
When the operating time for detecting vacuum pump is greater than service life protection threshold value, vacuum pump is closed.
Optionally, the operating time of vacuum pump is continuous working period.
Optionally, the operating time of vacuum pump is the total time to work in some cycles.
Optionally, which further comprises:
When vacuum pump is protected threshold value and be closed since operating time is greater than the service life, issues vacuum pump and abuse signal.
Optionally, which further comprises: vacuum pump abuse signal being transmitted to instrument desk and is presented.
Optionally, which further comprises:
Threshold value, holding vacuum pump open state are protected when the operating time for detecting vacuum pump is less than the service life.
Optionally, which further comprises: when detect the vacuum degree in vacuum booster be less than certain numerical value
When, open vacuum pump.
In another embodiment, a kind of non-transitory computer-readable storage medium store instruction, described instruction by
The step of reason device makes the processor execute above-mentioned control method when executing.
In another embodiment, a kind of automobile includes:
Vacuum booster, vacuum sensor, brake pedal, as described above non-instantaneous computer-readable is deposited vacuum pump
Storage media and entire car controller for executing above-metioned instruction.
As it can be seen that based on the above embodiment, by the control method of the electronic vacuum force aid system, realizing to vacuum pump
The monitoring for the case where working under abnormal operation, and vacuum pump is closed when detecting vacuum pump abuse.It avoids as a result, true
Sky pump abuse, plays the protective effect to vacuum pump, extends the service life of vacuum pump.
Detailed description of the invention
Only illustratively description and explain the present invention for the following drawings, does not limit the range of invention.
Fig. 1 is the schematic block diagram of automobile booster assembly in one embodiment；
Fig. 2 is the exemplary flow diagram of the control method of electronic vacuum force aid system in one embodiment；
Fig. 3 is the preferred flow schematic diagram of the control method of electronic vacuum force aid system in one embodiment；
Fig. 4 is the flow diagram of the unlatching of one embodiment intermediate pump.
Description of symbols
1 brake pedal
2 vacuum boosters
3 output push rods
4 vacuum sensors
5 vacuum pumps
6 entire car controllers
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, right hereinafter, referring to the drawings and the embodiments,
The present invention is further described.
Referring to Figure 1, in one embodiment, automobile booster assembly may include: brake pedal 1, vacuum booster 2,
Export push rod 3, vacuum sensor 4, vacuum pump 5 and entire car controller 6.
In galloping, driver carries out brake operating, brake pedal 1, when the vacuum of vacuum booster 2
When degree is less than 60kpa, vacuum pump 5 is opened, above-mentioned state can be regarded as vacuum pump 5 and work under normal operation.
When automobile Ultra-Low Speed travels or is static, driver carries out brake operating, brake pedal 1, when vacuum helps
When the vacuum degree of power device 2 is less than 50kpa, vacuum pump 5 is opened, and 5 operating time of vacuum pump is greater than 5 service life of vacuum pump protection threshold
Value, above-mentioned state can be regarded as vacuum pump 5 and work under abnormal operation, be that vacuum pump 5 is abused.
Refer to Fig. 2, in the present embodiment, the control method of electronic vacuum force aid system be may include steps of:
S1, detection speed signal；
S2, when detect speed signal reaction speed numerical value be less than certain numerical value when, detect vacuum pump 5 work shape
State；
S3, when detect vacuum pump 5 working condition be open when, detect vacuum pump 5 operating time；
S4, when detect vacuum pump 5 operating time be greater than the service life protection threshold value when, close vacuum pump 5.
From the above mentioned, the control method of the electronic vacuum force aid system may be implemented to vacuum pump 5 under abnormal operation
The monitoring of working condition, and vacuum pump 5 can be closed when detecting that vacuum pump 5 is abused.
Further, in this embodiment when vacuum pump 5 is protected threshold value and be closed since operating time is greater than the service life,
Vacuum pump 5 can be issued and abuse signal, and instrument can show that vacuum pump 5 abuses signal, to prompt driver, according to prompt
Driver can stop operation behavior.
In the present embodiment, the operating time of vacuum pump 5 may include two kinds of situations:
The operating time of the first vacuum pump 5 refers to 5 continuous working period of vacuum pump；
The operating time of second of vacuum pump 5 refers to the total time that vacuum pump 5 works in some cycles.
In addition, as shown in figure 3,6 pairs of the entire car controller speed signal inputted and 5 working condition of vacuum pump carry out detection tool
Body may include steps of:
S11, detection speed signal；
S12, judge whether the speed of speed signal reaction is lower than certain numerical value:
S13, when speed signal reaction speed numerical value be lower than certain numerical value when, i.e., vehicle is in static or Ultra-Low Speed row
When sailing, whether detection vacuum pump 5 is opened, that is, detects the working condition of vacuum pump；
When the speed numerical value of speed signal reaction is greater than certain numerical value, i.e. vehicle in normally travel or when running at high speed,
Can detection without next step to vacuum pump 5, execute S18, terminate detection.
S14, judge whether vacuum pump is opened；
S15, when vacuum pump 5 is in the open state, detect vacuum pump 5 operating time；
When vacuum pump 5 is not turned on, can detection without next step to vacuum pump 5, execute S18, terminate detection.
S16, judge that 5 operating time of vacuum pump is greater than service life protection threshold value:
S17, when detect 5 operating time of vacuum pump be greater than vacuum pump 5 service life protect threshold value when, close vacuum pump 5；
It, can still holding vacuum pump 5 when detecting that 5 operating time of vacuum pump is less than service life of vacuum pump 5 and protects threshold value
Open state executes S18, terminates detection.
As shown in figure 4, unlatching vacuum pump can specifically be divided into following steps:
S111, start to brake；
S112, judge speed；
If S113, speed are high speed, judge whether the vacuum degree of vacuum booster 2 is less than 60kpa；
If S114, speed are static or low speed, judge whether the vacuum degree of vacuum booster 2 is less than 50kpa；
If the vacuum degree of S115, vacuum booster 2 is less than 60kpa or the vacuum degree of vacuum booster 2 is less than 50kpa,
Then open vacuum pump 5；
If the vacuum degree of S116, vacuum booster 2 is greater than 60kpa or the vacuum degree of vacuum booster 2 is greater than 50kpa,
Then vacuum pump 5 is kept in off position；
In addition, non-transitory computer-readable storage medium can further be arranged in frame as shown in Figure 1, this is non-instantaneous
Computer readable storage medium can store instruction, these instructions execute processor such as aforementioned implementation
The step of control method described in example.
For automobile, above-mentioned processor can be provided in entire car controller 6, be retouched to execute previous embodiment such as
The step of control method stated.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (9)
1. a kind of control method of electronic vacuum force aid system, which is characterized in that the control method includes the following steps:
Detect speed signal；
When detecting the speed numerical value of speed signal reaction lower than certain numerical value, the working condition of vacuum pump is detected；
When detecting the working condition of vacuum pump to open, the operating time of vacuum pump is detected；
When the operating time for detecting vacuum pump is greater than service life protection threshold value, vacuum pump is closed.
2. the control method of electronic vacuum force aid system according to claim 1, which is characterized in that when the work of vacuum pump
A length of continuous working period.
3. the control method of electronic vacuum force aid system according to claim 1, which is characterized in that when the work of vacuum pump
The total time to work in a length of some cycles.
4. the control method of electronic vacuum force aid system according to claim 1, which is characterized in that the control method is into one
Step includes:
When vacuum pump is protected threshold value and be closed since operating time is greater than the service life, issues vacuum pump and abuse signal.
5. the control method of electronic vacuum force aid system according to claim 4, which is characterized in that the control method is into one
Step includes: that vacuum pump abuse signal is transmitted to instrument desk to present.
6. the control method of electronic vacuum force aid system according to claim 1, which is characterized in that the control method is into one
Step includes:
Threshold value, the open state of holding vacuum pump are protected when the operating time for detecting vacuum pump is less than the service life.
7. the control method of electronic vacuum force aid system according to claim 1, which is characterized in that the control method is into one
Step includes:
When detecting that the vacuum degree in vacuum booster is less than certain numerical value, vacuum pump is opened.
8. a kind of non-transitory computer-readable storage medium, the non-transitory computer-readable storage medium store instruction is special
Sign is that described instruction executes the processor as described in any one of claims 1 to 7
The step of control method.
9. a kind of automobile, which is characterized in that the automobile includes:
It is vacuum booster, vacuum pump, vacuum sensor, brake pedal, as claimed in claim 8 non-instantaneous computer-readable
Storage medium and entire car controller for executing above-metioned instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811101561.5A CN109398337A (en) | 2018-09-20 | 2018-09-20 | The control method of electronic vacuum force aid system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811101561.5A CN109398337A (en) | 2018-09-20 | 2018-09-20 | The control method of electronic vacuum force aid system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109398337A true CN109398337A (en) | 2019-03-01 |
Family
ID=65466117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811101561.5A Pending CN109398337A (en) | 2018-09-20 | 2018-09-20 | The control method of electronic vacuum force aid system |
Country Status (1)
| Country | Link |
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| CN (1) | CN109398337A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111591271A (en) * | 2020-05-27 | 2020-08-28 | 重庆长安新能源汽车科技有限公司 | Control method of vacuum pump and computer-storable medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005009337A (en) * | 2003-06-17 | 2005-01-13 | Ebara Corp | Diagnostic system for vacuum pump |
| EP1681219B1 (en) * | 2005-01-18 | 2008-05-21 | Fuji Jukogyo Kabushiki Kaisha | Control system for a brake booster vacuum pump |
| CN104842988A (en) * | 2014-05-23 | 2015-08-19 | 北汽福田汽车股份有限公司 | Method and system for controlling switching-on threshold value and switching-off threshold value of brake vacuum pump |
| CN106812689A (en) * | 2017-01-04 | 2017-06-09 | 浙江零跑科技有限公司 | Motorized vacuum method for controlling pump and control device |
| CN107458364A (en) * | 2017-07-20 | 2017-12-12 | 北京新能源汽车股份有限公司 | Force aid system for braking control method and device |
-
2018
- 2018-09-20 CN CN201811101561.5A patent/CN109398337A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005009337A (en) * | 2003-06-17 | 2005-01-13 | Ebara Corp | Diagnostic system for vacuum pump |
| EP1681219B1 (en) * | 2005-01-18 | 2008-05-21 | Fuji Jukogyo Kabushiki Kaisha | Control system for a brake booster vacuum pump |
| CN104842988A (en) * | 2014-05-23 | 2015-08-19 | 北汽福田汽车股份有限公司 | Method and system for controlling switching-on threshold value and switching-off threshold value of brake vacuum pump |
| CN106812689A (en) * | 2017-01-04 | 2017-06-09 | 浙江零跑科技有限公司 | Motorized vacuum method for controlling pump and control device |
| CN107458364A (en) * | 2017-07-20 | 2017-12-12 | 北京新能源汽车股份有限公司 | Force aid system for braking control method and device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111591271A (en) * | 2020-05-27 | 2020-08-28 | 重庆长安新能源汽车科技有限公司 | Control method of vacuum pump and computer-storable medium |
| CN111591271B (en) * | 2020-05-27 | 2021-06-22 | 重庆长安新能源汽车科技有限公司 | Control method of vacuum pump and computer-storable medium |
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Application publication date: 20190301 |
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