CN202368565U - Pressure stabilizing device of vacuum power-assisted braking system - Google Patents
Pressure stabilizing device of vacuum power-assisted braking system Download PDFInfo
- Publication number
- CN202368565U CN202368565U CN2011205546841U CN201120554684U CN202368565U CN 202368565 U CN202368565 U CN 202368565U CN 2011205546841 U CN2011205546841 U CN 2011205546841U CN 201120554684 U CN201120554684 U CN 201120554684U CN 202368565 U CN202368565 U CN 202368565U
- Authority
- CN
- China
- Prior art keywords
- vacuum pump
- vacuum
- relay
- signal processing
- processing module
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model provides a vacuum servo brake system voltage regulator device, including signal detection part, signal processing module and execution part, its signal detection part is the pressure sensor who installs on the vacuum pump, and pressure sensor is connected with CPU signal processing module, and CPU signal processing module's output is connected with relay drive module, and relay drive module's output is connected with execution part's relay control circuit, and the power supply loop at the vacuum pump is connected to the contact of relay. The utility model discloses a pressure sensor real-time detection system vacuum, real-time control electric vacuum pump work or stop for system vacuum maintains in the within range of regulation, thereby provides sufficient braking force for braking system, prevents that electric vacuum pump from working for a long time and leading to overheated damage, guarantee driving safety.
Description
Technical field
The utility model relates to a kind of vacuum boosting braking system stable-pressure device, belongs to the brake system of car technical field, specifically is meant a kind of stable vacuum automobile energy assisted braking system means for applying negative.
Background technology
Vacuum boosting braking system must rely on negative pressure could produce extra braking force, so system must keep enough degree of vacuum.Modern automobile adopts vacuum pump that negative pressure is provided mostly, starts or stops vacuum pump in good time the system vacuum degree is remained in the reasonable range.The traditional mechanical vacuum pump drives complicated, and control accuracy is not high, and electric vacuum pump has just in time remedied the shortcoming of mechanical type vacuum pump, has saved transmission device, is easy to control accurately, has greatly improved travel safety.
Summary of the invention
The purpose of the utility model is a kind of vacuum boosting braking system stable-pressure device of design, can keep the system vacuum degree in preset scope, guarantee driving safety.
The technical scheme of the utility model: the vacuum boosting braking system stable-pressure device of the utility model comprises signal detection part, signal processing module and operating part; Its signal detection partly is mounted in the pressure sensor on the vacuum pump; Pressure sensor is connected with the cpu signal processing module; The output of cpu signal processing module is connected with relay driving module; The output of relay driving module is connected with the relay control circuit of operating part, and the contact of relay is connected the electric power loop of vacuum pump.
The advantage of the utility model: the utility model is through pressure sensor real-time detecting system degree of vacuum; Real-time control Motorized vacuum pump work or stop; Make the system vacuum degree maintain in the scope of regulation, thereby enough braking forces, guarantee driving safety are provided for brake system.
Description of drawings
Fig. 1 is the vacuum boosting braking system stable-pressure device control loop schematic diagram of the utility model.
Fig. 2 is the major loop schematic diagram.
The specific embodiment
Like Fig. 1, Fig. 2: the vacuum boosting braking system stable-pressure device of the utility model comprises signal detection part, signal processing module and operating part; Its signal detection partly is mounted in the pressure sensor on the vacuum pump; Pressure sensor is connected with the cpu signal processing module; The output of cpu signal processing module is connected with relay driving module, and the output of relay driving module is connected with the relay J control loop of operating part, and the contact of relay J is connected the electric power loop of vacuum pump D.
The core devices of vacuum boosting braking system stable-pressure device is a singlechip CPU; Detecting the voltage signal of the pressure sensor output of degree of vacuum imports through the analogue to digital conversion mouth of singlechip CPU; The control signal of micro controller system exports relay driving module to through the IO mouth, the closed or disconnection of relay driving module control relay open contact J.Singlechip CPU is sampled to vacuum pressure with certain frequency under the control of clock, then through software approach filtering, judges that it is whether in preset vacuum ranges.When being lower than down, vacuum pressure power prescribes a time limit, micro controller system IO mouth output high level, and the relay driving module output low level makes the relay adhesive, thereby makes the Motorized vacuum pump work; When arriving, vacuum pressure power goes up in limited time, micro controller system IO mouth output low level, and relay driving module output high level breaks off relay, thereby electric vacuum pump is quit work.Work long hours for fear of electric vacuum pump and to cause cause thermal damage; Singlechip CPU can be calculated the electric vacuum pump stream time; In case this time arrives the numerical value of regulation; Micro controller system IO mouth output low level, relay driving module output high level breaks off relay, thereby electric vacuum pump is quit work.If not power down of device, the execution that this control process goes round and begins again under the control of clock.
Claims (1)
1. vacuum boosting braking system stable-pressure device; Comprise signal detection part, signal processing module and operating part; It is characterized in that: signal detection partly is mounted in the pressure sensor on the vacuum pump, and pressure sensor is connected with the cpu signal processing module, and the output of cpu signal processing module is connected with relay driving module; The output of relay driving module is connected with the relay control circuit of operating part, and the contact of relay is connected the electric power loop of vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205546841U CN202368565U (en) | 2011-12-26 | 2011-12-26 | Pressure stabilizing device of vacuum power-assisted braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205546841U CN202368565U (en) | 2011-12-26 | 2011-12-26 | Pressure stabilizing device of vacuum power-assisted braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202368565U true CN202368565U (en) | 2012-08-08 |
Family
ID=46592281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205546841U Expired - Fee Related CN202368565U (en) | 2011-12-26 | 2011-12-26 | Pressure stabilizing device of vacuum power-assisted braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202368565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072563A (en) * | 2013-02-06 | 2013-05-01 | 浙江吉利汽车研究院有限公司杭州分公司 | Method for controlling electric vacuum pump based on ECU (Electronic Control Unit) control |
-
2011
- 2011-12-26 CN CN2011205546841U patent/CN202368565U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072563A (en) * | 2013-02-06 | 2013-05-01 | 浙江吉利汽车研究院有限公司杭州分公司 | Method for controlling electric vacuum pump based on ECU (Electronic Control Unit) control |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203358568U (en) | Vacuum boosting control system of electromobile | |
| CN202368565U (en) | Pressure stabilizing device of vacuum power-assisted braking system | |
| CN203497910U (en) | Energy-saving escalator control system | |
| CN202783019U (en) | electric pedal controller for automobile | |
| CN203172454U (en) | Electrombile hand brake device | |
| CN202358046U (en) | Intelligent windscreen wiper system | |
| CN205353744U (en) | Delta robot drives accuse system | |
| CN205034106U (en) | Environment -friendly vacuum pump controller | |
| CN206914560U (en) | Electric car rate-limiting control circuit | |
| CN202630973U (en) | Detection device for motor rotation | |
| CN103028156A (en) | Variable-pressure control breast pump and breast pumping method | |
| CN202357895U (en) | Brake device for electric vehicle | |
| CN104443248A (en) | Sudden rush prevention device for electromobile | |
| CN203344938U (en) | Assisting force vacuum degree control device of electric automobile brake | |
| CN202967784U (en) | Pressure sensor escalator | |
| CN203394812U (en) | Electric fan controller | |
| CN204737090U (en) | Control circuit of soap packaging machine | |
| CN203263988U (en) | Micro-valve pressure control device of bi-level breathing machine | |
| CN105034947B (en) | Intelligently starting prevents Comprehensive Control and warning system and control method to car | |
| CN202663334U (en) | Parking brake control device of servo controller | |
| CN202498445U (en) | Quick approaching control circuit for processed workpieces and cutters | |
| CN203233357U (en) | Low-voltage frequency converter with braking function | |
| CN104287752A (en) | Movement control method and device used for movable type X-ray machine | |
| CN204428534U (en) | Clinical air bag press device | |
| CN203340824U (en) | Automatic oxygen aeration pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20131226 |