CN207029153U - Vacuum-control(led) system needed for automobile brake - Google Patents
Vacuum-control(led) system needed for automobile brake Download PDFInfo
- Publication number
- CN207029153U CN207029153U CN201720729953.0U CN201720729953U CN207029153U CN 207029153 U CN207029153 U CN 207029153U CN 201720729953 U CN201720729953 U CN 201720729953U CN 207029153 U CN207029153 U CN 207029153U
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- vacuum
- control
- vacuum pump
- ecu
- pump
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model 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 utility model 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, improve service life of vacuum pump, simplify simultaneously optimal control.
Description
Technical field
The utility model is specifically related 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 making
Dynamic aspect of performance mainly takes technology as follows：A, brakes vacuum tank connects motor intake manifold by pipeline, by manifold
Vacuum is provided, carrys out power brake；B, brakes installs 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：For A schemes under idling high load working condition, manifold provides vacuum deficiency, or during shutdown
Vacuum can not be provided, influence braking ability；B schemes do not use manifold vacuum, install pressure sensor and control electricity additional
Road will increase vehicle cost.
Utility model content
For above-mentioned technical problem, the utility model provides vacuum-control(led) system needed for a kind of automobile brake, its purpose
It is to simplify prior art braking system part device, vavuum pump control is carried out using Engine ECU.
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, 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 utility model provide a kind of automobile brake needed for vacuum-control(led) system, make engine in idling high load working condition
Under（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 vacuum
Pump service life, simplify simultaneously optimal control.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described.
Fig. 1 parts of vacuum-control(led) system needed for automobile brake that the utility model proposes form schematic diagram；
The logic control chart of vacuum-control(led) system needed for the automobile brake that Fig. 2 is proposed by the utility model.
Numeral represents 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 represents in Fig. 2：
Dp is the air-distributor vacuum pressure that ECU is learnt；TP is that vacuum judges size limit value, constant, can be set, different cars
Have any different（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 1 state one
Section time T（s）.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe.
Embodiment：
Shown in Fig. 1 and 2, vacuum-control(led) system needed for a kind of automobile brake, including motor intake manifold 1, vacuum servo
Device 4, electric vacuum pump 7, vacuum tank 5 and Engine ECU 9, pass through pipe between the vacuum tank 5 and motor intake manifold 1
Road 2 connects, and the pipeline 2 is provided with a check valve 1；The vacuum tank 5 also respectively with the vacuum booster 4 and the electricity
Dynamic vavuum pump 7 connects；A check valve 26 is provided between the vacuum tank 5 and electric vacuum pump 7；The electric vacuum pump 7 and institute
State and be provided with a magnetic valve 8 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 control 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 produces
Raw vacuum, by gas piping 2 and check valve 1 so that vacuum tank 5 stores vacuum to be needed for braking.When the vacuum of inlet manifold 1
When insufficient, i.e. dp<TP, if now driver has braking needs, i.e. b_br=1, generation b_vp=1, ECU9 output current at once,
Allow the adhesive of magnetic valve 8 so that vavuum pump 7 works, and by check valve, allows vacuum tank 5 to produce vacuum, is needed for braking.In order to keep away
Exempt from the frequent start-stop of vavuum pump 7, keep vavuum pump 7 to work a period of time T 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 does not have 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 real in other embodiments in the case where not departing from spirit or scope of the present utility model
It is existing.
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；An electricity is provided 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 |
|---|---|---|---|
| CN201720729953.0U CN207029153U (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 |
|---|---|---|---|
| CN201720729953.0U CN207029153U (en) | 2017-06-21 | 2017-06-21 | Vacuum-control(led) system needed for automobile brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207029153U true CN207029153U (en) | 2018-02-23 |
Family
ID=61468597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720729953.0U Expired - Fee Related CN207029153U (en) | 2017-06-21 | 2017-06-21 | Vacuum-control(led) system needed for automobile brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207029153U (en) |
-
2017
- 2017-06-21 CN CN201720729953.0U patent/CN207029153U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180223 Termination date: 20210621 |