CN107264502A - Vacuum-control(led) system needed for automobile brake - Google Patents
Vacuum-control(led) system needed for automobile brake Download PDFInfo
- Publication number
- CN107264502A CN107264502A CN201710476872.9A CN201710476872A CN107264502A CN 107264502 A CN107264502 A CN 107264502A CN 201710476872 A CN201710476872 A CN 201710476872A CN 107264502 A CN107264502 A CN 107264502A
- Authority
- CN
- China
- Prior art keywords
- vacuum
- control
- vacuum pump
- ecu
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
-
- 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
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
Abstract
The invention discloses vacuum-control(led) system needed for a kind of automobile brake, including motor intake manifold, vacuum booster, electric vacuum pump, vacuum tank and Engine ECU, connected between vacuum tank and motor intake manifold by pipeline, and the pipeline is provided with a check valve one；Vacuum tank is also connected with the vacuum booster and electric vacuum pump respectively；A check valve two is provided between vacuum tank and electric vacuum pump；A magnetic valve is provided between electric vacuum pump and the ECU, ECU can send a control signal to magnetic valve to control whether it works.The present invention makes engine under idling high load working condition（It is included in plateau）Or in the case of shutting down, it is ensured that brakes has enough vacuum, so as to reach good braking ability；Prior art braking system part device is simplified, vavuum pump control is carried out using Engine ECU, that is, reduces cost, service life of vacuum pump is improved, simplified and optimal control.
Description
Technical field
Present invention relates particularly to vacuum-control(led) system needed for a kind of automobile brake.
Background technology
Braking ability is the important indicator that Hyundai Motor is researched and developed safely in car steering.At present, each enterprise of the industry is in system
Dynamic aspect of performance mainly takes technology as follows：A, brakes vacuum tank connect motor intake manifold by pipeline, by manifold
Vacuum is provided, carrys out power brake；B, brakes install electric vacuum pump additional, and vacuum tank installs pressure sensor, vavuum pump control additional
The vacuum signal that module is surveyed according to pressure sensor starts Motorized vacuum pump work, produces vacuum.
But A, B scheme existing defects：A schemes are under idling high load working condition, and manifold provides vacuum deficiency, or when shutting down
Vacuum can not be provided, braking ability is influenceed；B schemes do not use manifold vacuum, install pressure sensor and control electricity additional
Road will increase vehicle cost.
The content of the invention
For above-mentioned technical problem, the invention provides vacuum-control(led) system needed for a kind of automobile brake, its object is to simplification
Prior art braking system part device, uses Engine ECU to carry out vavuum pump control.
Vacuum-control(led) system needed for a kind of automobile brake, including motor intake manifold, vacuum booster, Motorized vacuum
Pump, vacuum tank and Engine ECU, are connected between the vacuum tank and motor intake manifold by pipeline, and on the pipeline
Provided with a check valve one；The vacuum tank is also connected with the vacuum booster and the electric vacuum pump respectively；The vacuum
A check valve two is provided between tank and electric vacuum pump；A magnetic valve, ECU are provided between the electric vacuum pump and the ECU
Magnetic valve can be sent a control signal to control whether it works.
The invention provides vacuum-control(led) system needed for a kind of automobile brake, make engine under idling high load working condition
（It is included in plateau）Or in the case of shutting down, it is ensured that brakes has enough vacuum, so as to reach good braking ability；Simplify
Prior art braking system part device, vavuum pump control is carried out using Engine ECU, that is, reduces cost, improves vavuum pump
Service life, simplifies and optimal control.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described.
The part composition schematic diagram of Fig. 1 vacuum-control(led) systems for needed for automobile brake proposed by the invention；
The logic control chart of Fig. 2 vacuum-control(led) systems for needed for automobile brake proposed by the invention.
Numeral is represented in Fig. 1：
1st, motor intake manifold 2, pipeline 3, check valve 1, brake booster 5, vacuum tank 6, check valve two
7th, electric vacuum pump 8, magnetic valve 9, Engine ECU.
Symbol is represented in Fig. 2：
Dp is the air-distributor vacuum pressure that ECU is learnt；TP is that vacuum judges size limit value, and constant can be set, different vehicle has
Difference（200~300hpa of general setting）；B_br is that braking judges variable, and=1 expression driver steps on braking；B_vptem is vacuum
Pump work enables variable, and=1 represents to need vacuum pump work；B_vp be when b_vptem from 0 be changed into 1 after keep one section of 1 state when
Between T（s）.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described.
Embodiment：
Shown in Fig. 1 and 2, vacuum-control(led) system needed for a kind of automobile brake, including motor intake manifold 1, vacuum booster 4,
Electric vacuum pump 7, vacuum tank 5 and Engine ECU 9, are connected between the vacuum tank 5 and motor intake manifold 1 by pipeline 2
Connect, and the pipeline 2 is provided with a check valve 1；The vacuum tank 5 also respectively with the vacuum booster 4 and described electronic true
Empty pump 7 is connected；A check valve 26 is provided between the vacuum tank 5 and electric vacuum pump 7；The electric vacuum pump 7 and described
A magnetic valve 8 is provided between ECU9, ECU9 can send a control signal to magnetic valve 8 to control whether it works..
Control principle：Retain the pipeline 2 between brake vacuum tank 5 and motor intake manifold 1, remove pressure sensor and
Control circuit module, ECU9 controls vavuum pump 7 to work according to the vacuum pressure of manifold 1 by magnetic valve 8.
Specific works step：1st, driver loses throttle, and tail-off air throttle moves towards idling, and motor intake manifold 1 is produced
Raw vacuum, by gas piping 2 and check valve 1 so that the storage vacuum of vacuum tank 5 needs for braking.When the vacuum of inlet manifold 1
When not enough, i.e. dp<TP, if now driver has braking needs, i.e. b_br=1, produces b_vp=1, ECU9 output currents at once,
Allow the adhesive of magnetic valve 8 so that vavuum pump 7 works, by check valve, allow vacuum tank 5 to produce vacuum, needed for braking.In order to keep away
Exempt from the frequent start-stop of vavuum pump 7, work a period of time T of vavuum pump 7 is kept whenever b_vptem=1（General setting 20s）；When starting
Machine abnormal misfire is shut down, or during engine band automatic start-stop function, motor intake manifold 1 is without vacuum, the follow-up work of vavuum pump 7
Make control with 1, no longer repeat.
A variety of modifications to these embodiments will be apparent for those skilled in the art, herein
Defined General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.
Claims (1)
1. vacuum-control(led) system needed for a kind of automobile brake, including motor intake manifold, vacuum booster, electric vacuum pump,
Vacuum tank and Engine ECU, it is characterised in that connected between the vacuum tank and motor intake manifold by pipeline, and
The pipeline is provided with a check valve one；The vacuum tank is also connected with the vacuum booster and the electric vacuum pump respectively；
A check valve two is provided between the vacuum tank and electric vacuum pump；Provided with an electricity between the electric vacuum pump and the ECU
Magnet valve, ECU can send a control signal to magnetic valve to control whether it works.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710476872.9A CN107264502A (en) | 2017-06-21 | 2017-06-21 | Vacuum-control(led) system needed for automobile brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710476872.9A CN107264502A (en) | 2017-06-21 | 2017-06-21 | Vacuum-control(led) system needed for automobile brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107264502A true CN107264502A (en) | 2017-10-20 |
Family
ID=60067954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710476872.9A Withdrawn CN107264502A (en) | 2017-06-21 | 2017-06-21 | Vacuum-control(led) system needed for automobile brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107264502A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108248589A (en) * | 2018-03-02 | 2018-07-06 | 江苏凯龙宝顿动力科技有限公司 | A kind of electric motor intelligent brake assist system and its control method |
| CN109733361A (en) * | 2019-01-25 | 2019-05-10 | 常熟理工学院 | A kind of vacuum booster unit and method that idling start-stop system is applicable |
| CN114852026A (en) * | 2022-05-23 | 2022-08-05 | 安徽江淮汽车集团股份有限公司 | Gasoline vehicle brake vacuum boosting system and control method |
| CN114922761A (en) * | 2022-05-27 | 2022-08-19 | 中国第一汽车股份有限公司 | Control method of start-up auxiliary system and start-up auxiliary system |
-
2017
- 2017-06-21 CN CN201710476872.9A patent/CN107264502A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108248589A (en) * | 2018-03-02 | 2018-07-06 | 江苏凯龙宝顿动力科技有限公司 | A kind of electric motor intelligent brake assist system and its control method |
| CN109733361A (en) * | 2019-01-25 | 2019-05-10 | 常熟理工学院 | A kind of vacuum booster unit and method that idling start-stop system is applicable |
| CN114852026A (en) * | 2022-05-23 | 2022-08-05 | 安徽江淮汽车集团股份有限公司 | Gasoline vehicle brake vacuum boosting system and control method |
| CN114852026B (en) * | 2022-05-23 | 2023-08-11 | 安徽江淮汽车集团股份有限公司 | Vacuum braking assistance system for gasoline car and control method |
| CN114922761A (en) * | 2022-05-27 | 2022-08-19 | 中国第一汽车股份有限公司 | Control method of start-up auxiliary system and start-up auxiliary system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171020 |