CN102815288A - Electronic vacuum pump control device, vacuum boosting system and vacuum boosting method - Google Patents
Electronic vacuum pump control device, vacuum boosting system and vacuum boosting method Download PDFInfo
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- CN102815288A CN102815288A CN201110156340XA CN201110156340A CN102815288A CN 102815288 A CN102815288 A CN 102815288A CN 201110156340X A CN201110156340X A CN 201110156340XA CN 201110156340 A CN201110156340 A CN 201110156340A CN 102815288 A CN102815288 A CN 102815288A
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Abstract
The invention discloses an electronic vacuum pump control device and relates to vacuum boosting system tightness detection. The electronic vacuum pump control device comprises a microcontroller, an analog quantity acquisition module, a switching quantity acquisition module, a relay driving module, a memory module and a power supply module, wherein the analog quantity acquisition module, the switching quantity acquisition module, the relay driving module, the memory module and the power supply module are connected with the microcontroller. The invention additionally discloses a vacuum boosting system, which comprises the electronic vacuum pump control device, a vacuum tank, an electronic vacuum pump and a pressure sensor. The invention additionally discloses a vacuum boosting method. Due to the electronic vacuum pump control device, the effective control on the electronic vacuum pump is realized; and due to the vacuum boosting system, the tightness detection on the vacuum tank is realized and the overtime fault detection of the electronic vacuum pump during operation is realized.
Description
Technical field
The present invention relates to vacuum servo system leakproofness detection technique field, particularly a kind of vacuum pump control setup, vacuum servo system and vacuum servo method.
Background technology
Manned vehicle braking technology of the prior art all adopts the hydraulic braking mode, and chaufeur promotes the master cylinder inner carrier through push rod and carries out the hydraulic pressure activity through brake activation power on brake pedal; Because the braking-force ratio that people foot applies is more limited, can't satisfy the brake-pressure requirement of following four wheel cylinders of car load braking situation, so need vacuum booster that pedal is increased power-assisted; There is not driving engine for pure electric automobile; Vacuum source can't be provided, and brake system can't obtain normal traditional vacuum source, therefore; The appearance of electronic vacuum pump is exactly a kind of quick Solution to present present situation.
Know by above, the control of the electronic vacuum pump important that just seems, the bad braking effect that will cause of control is bad, even possibly cause the generation of accident.But not having now a special control system to electronic vacuum pump on the market, is simple this two states of opening and close, and the overtime fault of work that can't the detected electrons vacuum pump.Therefore, a kind of performance of market demand is more perfect, and there is audit function in the vacuum servo system and can controls the work of vacuum pump preferably.
Summary of the invention
The technical matters that (one) will solve
The technical matters that the present invention will solve is: how to realize the leak detection to the vacuum servo system; When control electronic vacuum pump work, can detect its overtime fault, to realize more effectively control.
(2) technical scheme
For solving the problems of the technologies described above; The invention provides a kind of electronic vacuum apparatus for controlling pump; Comprise: microcontroller, and and said microcontroller bonded assembly analogue collection module, memory module, power module, switch acquisition module and relay driving module; Wherein,
Said analogue collection module is used for the degree of vacuum of pressure sensor input is carried out filtering and conditioning, and the degree of vacuum after filtering and the conditioning is sent to said microcontroller;
Said switch acquisition module, the switching value that is used to collect is carried out level conversion and shaping, and the switching value after level conversion and the shaping is sent to said microcontroller;
Said relay driving module is used for the controlling and driving vacuum pump relay according to said microcontroller;
Said memory module is used for control store analog quantity and switching value data according to said microcontroller;
Said power module is used to said microcontroller, analogue collection module (102), switch acquisition module, relay driving module and pressure sensor power supply is provided;
Said microcontroller is used for the leakproofness according to the change-detection vacuum reservoir of said degree of vacuum, perhaps controls the unlatching of said electronic vacuum pump or closes, and judge whether the overtime fault of work takes place when the electronic vacuum pump work.
Wherein, also comprise first photoisolator, said switch acquisition module links to each other with said microcontroller through said first photoisolator.
Wherein, also comprise second photoisolator, said relay driving module links to each other with said microcontroller through said second photoisolator.
The present invention also provides a kind of vacuum servo system, comprising: electronic vacuum pump, pressure sensor, and vacuum reservoir and above-mentioned electronic vacuum apparatus for controlling pump,
Said electronic vacuum pump and said vacuum reservoir are through the vacuum lamp conducting;
Said pressure sensor connects said vacuum reservoir, is used for detecting in real time the degree of vacuum in the vacuum reservoir;
Said electronic vacuum apparatus for controlling pump connects said electronic vacuum pump and pressure sensor, and microcontroller wherein is used for judging according to the variation of said degree of vacuum the leakproofness of said vacuum reservoir.
Wherein, said microcontroller comprises:
The degree of vacuum acquisition module connects said analogue collection module, is used to obtain degree of vacuum;
The leakproofness detection module connects said degree of vacuum acquisition module, is used for detecting according to the degree of vacuum that when electronic vacuum pump quits work, gets access to the leakproofness of said vacuum reservoir, if degree of vacuum changes, then said vacuum reservoir is not airtight.
Wherein, said microcontroller also is used for controlling the unlatching of said electronic vacuum pump or cutting out according to the variation of said degree of vacuum, and judges whether the overtime fault of work takes place when the electronic vacuum pump work.
Wherein, said microcontroller comprises:
The degree of vacuum acquisition module connects said analogue collection module, is used to obtain degree of vacuum;
Pump control module connects said degree of vacuum acquisition module and said electronic vacuum pump, is used to judge whether said degree of vacuum is higher than threshold value, if be higher than threshold value, then controls said electronic vacuum pump work, to regulate the degree of vacuum of said vacuum reservoir;
The fault judgement module; Connect said pump control module and switch acquisition module; Be used for when the electronic vacuum pump work, carrying out timing; When the work-hours overtime threshold value of electronic vacuum pump, and the switch acquisition module does not detect switching value in said time threshold, then the overtime fault of electronic vacuum pump generation work.
Wherein, said microcontroller comprises:
The degree of vacuum acquisition module connects said analogue collection module, is used to obtain degree of vacuum;
Pump control module connects said degree of vacuum acquisition module and said electronic vacuum pump, is used to judge said degree of vacuum, if said degree of vacuum is higher than second threshold value, then controls said electronic vacuum pump work, to regulate the degree of vacuum of said vacuum reservoir; If said degree of vacuum is lower than first threshold value, then controls said electronic vacuum pump and quit work;
The fault judgement module; Connect said pump control module and switch acquisition module; Be used for when the electronic vacuum pump work, carrying out timing; When the work-hours overtime threshold value of electronic vacuum pump, and the switch acquisition module does not detect switching value in said time threshold, then the overtime fault of electronic vacuum pump generation work.
Wherein, said switching value is the switching value that vehicle brake pedal is stepped on or upspring.
The present invention also provides a kind of vacuum servo method, comprises following process:
S1: the degree of vacuum of gathering vacuum reservoir in real time;
S2: according to the unlatching of the variation of said degree of vacuum control electronic vacuum pump or close, and judge whether the overtime fault of work takes place when the electronic vacuum pump work.
Wherein, said step S2 specifically comprises:
Judge whether said degree of vacuum is higher than threshold value,, then control said electronic vacuum pump work, to regulate the degree of vacuum of said vacuum reservoir if be higher than threshold value;
When the electronic vacuum pump work, carry out timing, as if timing overtime threshold value, and in said time threshold, do not detect switching value, then the overtime fault of electronic vacuum pump generation work.
Wherein, said step S2 specifically comprises:
Judge said degree of vacuum,, then control said electronic vacuum pump work, to regulate the degree of vacuum of said vacuum reservoir if said degree of vacuum is higher than second threshold value; If said degree of vacuum is lower than first threshold value, then controls said electronic vacuum pump and quit work;
When the electronic vacuum pump work, carry out timing, as if timing overtime threshold value, and in said time threshold, do not detect switching value, then the overtime fault of electronic vacuum pump generation work.
Wherein, said first threshold value is that 60, the second threshold values are 70.
Wherein, said switching value is the switching value that vehicle brake pedal is stepped on or upspring.
Wherein, also comprise: detect the leakproofness of said vacuum reservoir according to the degree of vacuum that when electronic vacuum pump quits work, gets access to, if degree of vacuum changes, then said vacuum reservoir is not airtight.
(3) beneficial effect
Realized effective control through vacuum pump control setup of the present invention to electronic vacuum pump; The vacuum servo system has realized the leak detection to native system, the overtime fault detection when having realized the electronic vacuum pump work.
Description of drawings
Fig. 1 is a kind of electronic vacuum apparatus for controlling pump structural representation of the embodiment of the invention;
Fig. 2 is the another kind of electronic vacuum apparatus for controlling pump structural representation of the embodiment of the invention;
Fig. 3 is a kind of vacuum servo system architecture scheme drawing of the embodiment of the invention;
Fig. 4 is the diagram of circuit that the vacuum servo system realizes the vacuum servo method among Fig. 3.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
Embodiment 1
As shown in Figure 1, electronic vacuum apparatus for controlling pump of the present invention comprises: microcontroller 101, analogue collection module 102, switch acquisition module 103, relay driving module 104, memory module 105 and power module 106.
Analogue collection module 102 links to each other with microcontroller 101; Analog quantity to the pressure sensor input carries out filtering and conditioning, and the analog quantity after filtering and the conditioning is sent to microcontroller 101, and wherein analog quantity comprises: voltage analog, current analog amount or resistance simulation amount; Pressure sensor collects the pressure in the vacuum reservoir; Be degree of vacuum, and convert degree of vacuum to voltage analog, current analog amount or resistance simulation amount, and above-mentioned analog quantity is carried out filtering and conditioning; A/D modular converter in the microcontroller 101 is quantized to the scope of 0-255 with the analog quantity after filtering and the conditioning, and unit is 1.
Switch acquisition module 103 links to each other with microcontroller 101, the switching value that collects is carried out level conversion and shaping, and the switching value after level conversion and the shaping is sent to microcontroller 101.Switching value is the digital quantity of two states, and as in the braking procedure of electronlmobil, switch acquisition module 103 is gathered the state of stepping on and upspringing of brake pedal.
Relay driving module 104 links to each other with microcontroller 101, is used for the controlling and driving vacuum pump relay according to microcontroller 101.The vacuum pump relay then starts according to the driving of relay driving module 104 or cuts out electronic vacuum pump.
Power module 106 links to each other with microcontroller 101, is used to microcontroller 101, analogue collection module 102, switch acquisition module 103, relay driving module 104 and pressure sensor power supply is provided.
Microcontroller 101, whether the leakproofness according to the change-detection vacuum reservoir of degree of vacuum when the electronic vacuum air pump inoperative, changes through the detected degree of vacuum of pressure sensor, if change, explains that then vacuum reservoir is not airtight.Microcontroller 101 also can or cut out according to the unlatching of the variation of degree of vacuum control electronic vacuum pump, and judges whether the overtime fault of work takes place when the electronic vacuum pump work.Specifically open or close electronic vacuum pump through the vacuum pump relay, simultaneously the vacuum pump relay has played the hardware protection effect to microcontroller 101, prevents that microcontroller 101 is because of voltage or electric current is excessive burns out.
Control flow is to gather analog signals through analogue collection module 102; Gather switching value through switch acquisition module 103; Then analog signals and switching value are sent to microcontroller 101; Microcontroller 101 sends signal and gives relay driving module 104 through after the inter-process, thereby drives 201 work of vacuum pump relay control electronic vacuum pump.
Embodiment 2
As shown in Figure 2, on the basis of embodiment 1, in device, increase by first photoisolator 107, switch acquisition module 103 links to each other with microcontroller 101 through first photoisolator 107.Also increase by one second photoisolator 108, relay driving module 104 links to each other with microcontroller 101 through second photoisolator 108.
The control flow of present embodiment and embodiment 1 are basic identical; Difference is; In order to protect microcontroller 101 (because the voltage and current that microcontroller can bear is smaller); In case the voltage of the sign open/close state that switch acquisition module 103 collects or current value burn out microcontroller 101 when excessive; First photoisolator 107 plays the effect that reduces voltage or electric current, and second photoisolator 108 that in like manner links to each other with relay driving module 104 is identical with 107 effects of first photoisolator.Second photoisolator 108 can also be aerotron or 6232 chips.
Embodiment 3
As shown in Figure 3, for vacuum servo of the present invention system, comprising: the electronic vacuum apparatus for controlling pump 100 of electronic vacuum pump 201, pressure sensor 202, vacuum reservoir 203 and the foregoing description 1 or 2.Electronic vacuum pump 201 passes through the vacuum lamp conducting with vacuum reservoir 203; Pressure sensor 202 connects vacuum reservoir 203, is used for detecting in real time the degree of vacuum in the vacuum reservoir 203.Electronic vacuum apparatus for controlling pump 100 connects electronic vacuum pump 201 and pressure sensor 202, and microcontroller 101 is wherein judged the leakproofness of said vacuum reservoir 203 according to the variation of pressure sensor 202 detected degree of vacuum.
Microcontroller 101 specifically comprises: degree of vacuum acquisition module and leakproofness detection module, and the degree of vacuum acquisition module connects analogue collection module 102, and the leakproofness detection module connects the degree of vacuum acquisition module.The leakproofness of whole force aid system is mainly reflected in the leakproofness of vacuum reservoir and vacuum line, specifically can detect leakproofness through the degree of vacuum that detects vacuum reservoir, to guarantee vacuum servo system normal operation, avoids causing safety misadventure because of leakproofness.
The degree of vacuum acquisition module obtains through the degree of vacuum after analogue collection module 102 processing; The leakproofness detection module detects the leakproofness of vacuum reservoir 203 according to the degree of vacuum that when electronic vacuum pump 201 quits work, gets access to; Change if detect degree of vacuum in 201 out-of-work a period of times at electronic vacuum pump; Then vacuum reservoir 203 is not airtight, and the leakproofness of promptly whole vacuum servo system is bad.
Embodiment 4
In order more effectively to control the electronic vacuum pump work, the fault of detected electrons vacuum pump, microcontroller 101 also comprises: pump control module and fault judgement module.
Pump control module connects above-mentioned degree of vacuum acquisition module and electronic vacuum pump 201; Judge whether degree of vacuum is higher than threshold value,, then control electronic vacuum pump 201 work if be higher than threshold value; To regulate the degree of vacuum of vacuum reservoir 203, this threshold value can be set according to actual conditions.
The fault judgement module connects pump control module and switch acquisition module 103.The fault judgement module is carried out timing (as: 80S) when electronic vacuum pump 201 work; Work-hours overtime threshold value when electronic vacuum pump 201; And switch acquisition module 103 does not detect switching value in time threshold, then the overtime fault of electronic vacuum pump 201 generation work.
For example in the vehicle braked process; When the degree of vacuum of vacuum reservoir 203 is higher than threshold value; Brake pedal is difficult to step on down (under the stepping on of pedal and upspring be switching value), pump control module unlocking electronic vacuum pump 201, and 201 pairs of vacuum reservoirs 203 of electronic vacuum pump vacuumize; Pressure is wherein reduced, so that pedal is stepped on down easily.In electronic vacuum pump 201 working processs, if in the regular hour threshold value, do not detect under the stepping on of pedal, then think the overtime fault of electronic vacuum pump 201 generation work.Control the start and stop of electronic vacuum pump 201 according to threshold value, avoided electronic vacuum pump 201 to open always and cause the life-span to be reduced, reduced energy consumption and noise simultaneously.
Embodiment 5
For fear of electronic vacuum pump 201 frequent start-stops, different with embodiment 4 is that the pump control module of microcontroller 101 is judged degree of vacuum, if degree of vacuum is higher than second threshold value, then controls electronic vacuum pump 201 work, to regulate the degree of vacuum of vacuum reservoir 203; If degree of vacuum is lower than first threshold value, then controls electronic vacuum pump 201 and quit work.
For example in the vehicle braked process, when the degree of vacuum of vacuum reservoir 203 is higher than second threshold value (as: 70), brake pedal is difficult to step on down; Pump control module unlocking electronic vacuum pump 201; 201 pairs of vacuum reservoirs 203 of electronic vacuum pump vacuumize, and pressure are wherein reduced, so that pedal is stepped on down easily.Behind loosen the brake, do not close electronic vacuum pump 201 immediately, electronic vacuum pump 201 is still in running order, and the pressure in vacuum reservoir 203 is low to moderate first threshold value (as: 60).Because vacuum line is fully enclosed, the value that the degree of vacuum value in the vacuum reservoir still can maintain electronic vacuum pump 201 when closing, as long as brake pedal is no longer stepped on, the force value in the pipeline remains unchanged.When stepping on once more, can easier obtain the pedal degree of depth of needs.
Embodiment 6
Present embodiment provides a kind of vacuum servo method, and is as shown in Figure 4, comprising:
Step S401, the degree of vacuum of gathering vacuum reservoir in real time.The analogue collection module of electronic vacuum apparatus for controlling pump is gathered the detected degree of vacuum of pressure sensor in real time; This degree of vacuum is an analog quantity in the present embodiment; And degree of vacuum carried out filtering and adjustment; And degree of vacuum sent to microcontroller, microcontroller is converted into digital quantity with simulation, the degree of vacuum of the vacuum pump that obtains representing with digital quantity.Wherein, analog quantity is voltage analog, current analog amount or resistance simulation amount.
Step S402 according to the unlatching of the variation of degree of vacuum control electronic vacuum pump or close, and judges whether the overtime fault of work takes place when the electronic vacuum pump work.Specifically comprise:
Judge whether said degree of vacuum is higher than threshold value,, then control said electronic vacuum pump work, to regulate the degree of vacuum of said vacuum reservoir if be higher than threshold value.
When the electronic vacuum pump work, carry out timing, as if timing overtime threshold value (as: 80S), and in time threshold, do not detect switching value, then the overtime fault of electronic vacuum pump generation work.Switching value is switching value or other switching value of vehicle brake pedal.
Embodiment 7
For fear of electronic vacuum pump 201 frequent start-stops; Different with embodiment 6 is among the step S402 according to the unlatching of the variation control electronic vacuum pump of degree of vacuum or the mode of closing is: judge degree of vacuum; If degree of vacuum is higher than second threshold value (as: 70); Then control electronic vacuum pump 201 work, to regulate the degree of vacuum of vacuum reservoir 203; If degree of vacuum is lower than first threshold value (as: 60), then controls electronic vacuum pump 201 and quit work.
Embodiment 8
In order to guarantee that the vacuum servo system keeps leakproofness at work; Avoid causing safety misadventure because of leakproofness; On the basis of embodiment 6 and 7, also comprise the leakproofness that detects vacuum reservoir in the present embodiment, testing process is carried out when electronic vacuum pump quits work, and judges through the degree of vacuum that gets access to whether vacuum reservoir is airtight; If degree of vacuum changes, then vacuum reservoir is not airtight.
Above embodiment only is used to explain the present invention; And be not limitation of the present invention; The those of ordinary skill in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also be made various variations and modification; Therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (15)
1. electronic vacuum apparatus for controlling pump; It is characterized in that; Comprise: microcontroller (101), and and said microcontroller (101) bonded assembly analogue collection module (102), memory module (105), power module (106), switch acquisition module (103) and relay driving module (104); Wherein,
Said analogue collection module (102) is used for the degree of vacuum of pressure sensor input is carried out filtering and conditioning, and the degree of vacuum after filtering and the conditioning is sent to said microcontroller (101);
Said switch acquisition module (103), the switching value that is used to collect is carried out level conversion and shaping, and the switching value after level conversion and the shaping is sent to said microcontroller (101);
Said relay driving module (104) is used for the controlling and driving vacuum pump relay according to said microcontroller (101);
Said memory module (105) is used for control store analog quantity and switching value data according to said microcontroller (101);
Said power module (106) is used to said microcontroller (101), analogue collection module (102), switch acquisition module (103), relay driving module (104) and pressure sensor power supply is provided;
Said microcontroller (101) is used for the leakproofness according to the change-detection vacuum reservoir of said degree of vacuum, perhaps controls the unlatching of said electronic vacuum pump or closes, and judge whether the overtime fault of work takes place when the electronic vacuum pump work.
2. electronic vacuum apparatus for controlling pump as claimed in claim 1 is characterized in that, also comprises first photoisolator (107), and said switch acquisition module (103) links to each other with said microcontroller (101) through said first photoisolator (107).
3. electronic vacuum apparatus for controlling pump as claimed in claim 1 is characterized in that, also comprises second photoisolator (108), and said relay driving module (104) links to each other with said microcontroller (101) through said second photoisolator (108).
4. a vacuum servo system is characterized in that, comprising: electronic vacuum pump (201), pressure sensor (202), and each described electronic vacuum apparatus for controlling pump (100) in vacuum reservoir (203) and the claim 1～3,
Said electronic vacuum pump (201) passes through the vacuum lamp conducting with said vacuum reservoir (203);
Said pressure sensor (202) connects said vacuum reservoir (203), is used for detecting in real time the degree of vacuum in the vacuum reservoir (203);
Said electronic vacuum apparatus for controlling pump (100) connects said electronic vacuum pump (201) and pressure sensor (202), and microcontroller wherein (101) is used for judging according to the variation of said degree of vacuum the leakproofness of said vacuum reservoir (203).
5. vacuum servo as claimed in claim 4 system is characterized in that said microcontroller (101) comprising:
The degree of vacuum acquisition module connects said analogue collection module (102), is used to obtain degree of vacuum;
The leakproofness detection module connects said degree of vacuum acquisition module, is used for detecting according to the degree of vacuum that gets access to when quitting work at electronic vacuum pump (201) leakproofness of said vacuum reservoir (203), if degree of vacuum changes, then said vacuum reservoir (203) is not airtight.
6. vacuum servo as claimed in claim 4 system; It is characterized in that; Said microcontroller (101) also is used for controlling the unlatching of said electronic vacuum pump (201) or cutting out according to the variation of said degree of vacuum, and judges whether the overtime fault of work takes place when electronic vacuum pump (201) is worked.
7. vacuum servo as claimed in claim 6 system is characterized in that said microcontroller (101) comprising:
The degree of vacuum acquisition module connects said analogue collection module (102), is used to obtain degree of vacuum;
Pump control module; Connect said degree of vacuum acquisition module and said electronic vacuum pump (201), be used to judge whether said degree of vacuum is higher than threshold value, if be higher than threshold value; Then control said electronic vacuum pump (201) work, to regulate the degree of vacuum of said vacuum reservoir (203);
The fault judgement module; Connect said pump control module and switch acquisition module (103); Be used for when electronic vacuum pump (201) is worked, carrying out timing; When the work-hours overtime threshold value of electronic vacuum pump (201), and switch acquisition module (103) does not detect switching value in said time threshold, then the overtime fault of electronic vacuum pump (201) generation work.
8. vacuum servo as claimed in claim 6 system is characterized in that said microcontroller (101) comprising:
The degree of vacuum acquisition module connects said analogue collection module (102), is used to obtain degree of vacuum;
Pump control module; Connect said degree of vacuum acquisition module and said electronic vacuum pump (201), be used to judge said degree of vacuum, if said degree of vacuum is higher than second threshold value; Then control said electronic vacuum pump (201) work, to regulate the degree of vacuum of said vacuum reservoir (203); If said degree of vacuum is lower than first threshold value, then controls said electronic vacuum pump (201) and quit work;
The fault judgement module; Connect said pump control module and switch acquisition module (103); Be used for when electronic vacuum pump (201) is worked, carrying out timing; When the work-hours overtime threshold value of electronic vacuum pump (201), and switch acquisition module (103) does not detect switching value in said time threshold, then the overtime fault of electronic vacuum pump (201) generation work.
9. like claim 7 or 8 described vacuum servo systems, it is characterized in that said switching value is the switching value that vehicle brake pedal is stepped on or upspring.
10. a vacuum servo method is characterized in that, comprises following process:
S1: the degree of vacuum of gathering vacuum reservoir in real time;
S2: according to the unlatching of the variation of said degree of vacuum control electronic vacuum pump or close, and judge whether the overtime fault of work takes place when the electronic vacuum pump work.
11. vacuum servo method as claimed in claim 10 is characterized in that, said step S2 specifically comprises:
Judge whether said degree of vacuum is higher than threshold value,, then control said electronic vacuum pump work, to regulate the degree of vacuum of said vacuum reservoir if be higher than threshold value;
When the electronic vacuum pump work, carry out timing, as if timing overtime threshold value, and in said time threshold, do not detect switching value, then the overtime fault of electronic vacuum pump generation work.
12. vacuum servo method as claimed in claim 10 is characterized in that, said step S2 specifically comprises:
Judge said degree of vacuum,, then control said electronic vacuum pump work, to regulate the degree of vacuum of said vacuum reservoir if said degree of vacuum is higher than second threshold value; If said degree of vacuum is lower than first threshold value, then controls said electronic vacuum pump and quit work;
When the electronic vacuum pump work, carry out timing, as if timing overtime threshold value, and in said time threshold, do not detect switching value, then the overtime fault of electronic vacuum pump generation work.
13. vacuum servo method as claimed in claim 12 is characterized in that, said first threshold value is that 60, the second threshold values are 70.
14., it is characterized in that said switching value is the switching value that vehicle brake pedal is stepped on or upspring like each described vacuum servo method in the claim 11～13.
15. vacuum servo method as claimed in claim 10 is characterized in that, also comprises: detect the leakproofness of said vacuum reservoir according to the degree of vacuum that when electronic vacuum pump quits work, gets access to, if degree of vacuum changes, then said vacuum reservoir is not airtight.
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| CN105946835A (en) * | 2016-06-27 | 2016-09-21 | 成都雅骏新能源汽车科技股份有限公司 | Electric vacuum pump controller and control method applicable to pure electric vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200989262Y (en) * | 2006-12-06 | 2007-12-12 | 奇瑞汽车有限公司 | Supercharging engine vacuum system |
| CN201304987Y (en) * | 2008-11-26 | 2009-09-09 | 扬州飞驰动力科技有限公司 | Vacuum boost braking system for pure electric car |
| CN101791980A (en) * | 2010-02-11 | 2010-08-04 | 中国汽车技术研究中心 | Electric vacuum servo device control strategy of electric car brake |
| CN201677871U (en) * | 2010-03-22 | 2010-12-22 | 奇瑞汽车股份有限公司 | Automobile vacuum power-assisting system |
| US20110089754A1 (en) * | 2009-10-21 | 2011-04-21 | Sen Feng | Brake auxiliary system of electric car |
-
2011
- 2011-06-10 CN CN201110156340.XA patent/CN102815288B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200989262Y (en) * | 2006-12-06 | 2007-12-12 | 奇瑞汽车有限公司 | Supercharging engine vacuum system |
| CN201304987Y (en) * | 2008-11-26 | 2009-09-09 | 扬州飞驰动力科技有限公司 | Vacuum boost braking system for pure electric car |
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