CN203766751U - Control system of vacuum pump of electric automobile - Google Patents
Control system of vacuum pump of electric automobile Download PDFInfo
- Publication number
- CN203766751U CN203766751U CN201320893153.4U CN201320893153U CN203766751U CN 203766751 U CN203766751 U CN 203766751U CN 201320893153 U CN201320893153 U CN 201320893153U CN 203766751 U CN203766751 U CN 203766751U
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- vacuum pump
- vacuum
- gas tank
- control system
- pressure
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- 238000007689 inspection Methods 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
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Abstract
The utility model provides a control system of a vacuum pump of an electric automobile. The control system comprises a vacuum pump controller, the vacuum pump, a pressure sensor, a brake switch, an instrument display and a vehicle control unit, wherein the vacuum pump, the pressure sensor, the brake switch, the instrument display and the vehicle control unit are respectively and electrically connected with the vacuum pump controller, the pressure sensor is arranged in a gas outlet of a vacuum gas storage tank and is used for detecting the pressure of gas in the vacuum gas storage tank, the brake switch is connected with a brake pedal, and a brake signal is transmitted to the vacuum pump controller immediately after the brake switch is opened; the instrument display is used for outputting a fault signal which is transmitted by the vacuum pump controller; the vehicle control unit is used for adjusting the running situation of the electric automobile according to the pressure situation of the vacuum pump under the control of the vacuum pump controller.
Description
Technical field
The utility model relates to automotive control system, refers to especially a kind of electronlmobil vacuum pump control system.
Background technology
Along with the enhancing gradually of environmental consciousness, nowadays fuel orthodox car is replaced by novel electric vehicle gradually.Traditional electronlmobil vacuum brake force aid system is made up of pressure switch, controller for vacuum pump and vacuum pump, this system does not have real-time control and dependent failure diagnosis function, as: gas leakage, the fault such as motor is bad, sensor is bad, cause automobile driver in stroke can not monitor in real time vacuum brake control system situation, and there is disadvantageous thing, be unfavorable for like this development and the popularization of electronlmobil.So in order to reach this object, we develop a kind of electronlmobil vacuum brake assisted control system and control method, can allow driver can monitor in real time vacuum brake control system situation, so that safety brake in time.
Utility model content
The utility model provides a kind of electronlmobil vacuum pump control system, it comprises: controller for vacuum pump and the vacuum pump, pressure sensor, BK Brake Switch, instrument display, the entire car controller that are electrically connected with it respectively, wherein, pressure sensor is located at the air extractor duct of vacuum gas tank, for detection of the gaseous tension in vacuum gas tank, BK Brake Switch is connected with brake pedal, and BK Brake Switch is opened, to controller for vacuum pump transmission brake signal; Instrument display, the breakdown signal transmitting for exporting controller for vacuum pump; Entire car controller, under the control of controller for vacuum pump, according to the pressure condition of vacuum pump, adjusts the operation conditions of electronlmobil.
Preferably, described vacuum pump control system further comprises vacuum booster, and it is arranged between vacuum gas tank and brake pedal, be communicated with vacuum gas tank by extraction pipe, while stepping on brake pedal, BK Brake Switch is connected, and drives vacuum booster to vacuumize to vacuum gas tank.
Preferably, in vacuum gas tank, setting pressure lower limit is 40KPa, when setting current pressure is less than low pressure limit value, starts vacuum pump work, during higher than upper pressure limit value, stops vacuum pump work; Setting pressure higher limit is 65KPa, while setting current pressure higher than upper pressure limit value, stops vacuum pump work.
Compared with prior art, the utility model electronlmobil vacuum pump control system, by gaseous tension in vacuum gas tank is detected in real time, judge within certain detection time, current vacuum pressure and low pressure limit value and the comparison of low pressure limit value, to adjust its mode of operation, if when vacuum gas tank cannot reach low pressure limit value, report to the police to entire car controller, and driving stops travelling, automatically control its mode of operation, greatly improve the self-inspection safety of electronlmobil, ensure that it travels under safe condition, the gentle safety of travelling of Automated water of parking Control of Electric Vehicles.
Brief description of the drawings
Fig. 1 is the circuit block diagram of a kind of electronlmobil vacuum pump of the utility model control system;
Fig. 2 is the structural representation of a kind of electronlmobil vacuum pump of the utility model control system;
Fig. 3 is the diagram of circuit of a kind of electronlmobil vacuum pump of the utility model control method.
Detailed description of the invention
Shown in seeing figures.1.and.2, the utility model provides a kind of electronlmobil vacuum pump control system, it comprises: controller for vacuum pump 1 and the vacuum pump 2 being electrically connected with it respectively, pressure sensor 3, BK Brake Switch 4, instrument display 5, entire car controller 6 and power supply 11, wherein, pressure sensor 3 is located at the air extractor duct of vacuum gas tank 7, for detection of the gaseous tension in vacuum gas tank 7, BK Brake Switch 4 is connected with brake pedal 8, BK Brake Switch is opened, and transmits brake signal to controller for vacuum pump 1; Instrument display 5, the breakdown signal transmitting for exporting controller for vacuum pump 1; Entire car controller 6, under the control of controller for vacuum pump 1, according to the pressure condition of vacuum pump 2, adjusts the operation conditions of electronlmobil.
Shown in Fig. 2, controller for vacuum pump 1 is for controlling the mode of operation of vacuum pump 2 according to the atmospheric pressure state of vacuum pump 2.Vacuum pump 2 is electrically connected with controller for vacuum pump 1, is communicated with vacuum gas tank 7 with extraction pipe, vacuumizes to vacuum gas tank 7.Pressure sensor 3 arranges the air extractor duct end with vacuum gas tank 7, and it is electrically connected with controller for vacuum pump 1, so that the vacuum pump atmospheric pressure value of being measured is transferred in controller for vacuum pump 1 and to be compared.
In preferred embodiment of the present utility model, described vacuum pump control system further comprises vacuum booster 9, and it is arranged between vacuum gas tank 7 and brake pedal 8, and one end is communicated with vacuum gas tank 7 by extraction pipe, and one end and brake pedal 8 join.In the time stepping on brake pedal 8, BK Brake Switch 4 is connected, and brake pedal 8 promotes the cylinder compression of vacuum booster 9, drives vacuum booster 9 to vacuumize to vacuum gas tank 7.Described vacuum booster 9 is connected with brake pipe 10.
The operating voltage of described electronlmobil vacuum pump control system is 12V, when institute's system voltage is less than 9V, processes by large gas leakage, and feedback breakdown signal is to entire car controller and instrument display.In vacuum gas tank, setting pressure lower limit is 40KPa, when setting current pressure is less than low pressure limit value, starts vacuum pump work, during higher than upper pressure limit value, stops vacuum pump work; Setting pressure higher limit is 65KPa, while setting current pressure higher than upper pressure limit value, stops vacuum pump work.
Shown in Fig. 3, the utility model also provides the control method of electronlmobil vacuum pump control system, comprises the following steps:
Step 1) starts controller for vacuum pump, and brake control system is carried out to self-inspection;
Step 2) controller for vacuum pump starts vacuum pressure sensor the pressure in vacuum gas tank detected, and in the time that the pressure of vacuum gas tank is less than low pressure limit value, starts vacuum pump work; Maybe ought step on brake pedal, start BK Brake Switch, in the time that controller for vacuum pump is received described brake signal, start vacuum pump work;
Step 3) vacuum pump vacuumizes vacuum gas tank, in setting-up time, if when the current pressure of vacuum gas tank is greater than upper pressure limit value, vacuumize complete, drive vacuum pump quit work;
If when the current pressure of vacuum gas tank is less than low pressure limit value, drive electronlmobil to stop travelling.
First, start vacuum pump control system and carry out self-inspection, if system is normal, the pressure in vacuum gas tank is detected, if the system failure, to entire car controller 6 reporting fault information, is reported to the police, and transfer to instrument display 5 and export failure message.Next, measure through pressure sensor 3, if when the air pressure in vacuum gas tank 7 is greater than low pressure limit value 40KPa, the pressure state in vacuum gas tank 7 meets setting requirement, and vacuum pump 2 is not worked, and need not vacuumize vacuum gas tank 7; If when the air pressure in vacuum gas tank 7 is less than low pressure limit value 40KPa, starts vacuum pump 2 vacuum gas tank 7 is vacuumized.In addition, if controller for vacuum pump 1 receives brake signal, brake pedal 8 also can promote vacuum booster 9 compression work, no matter the pressure in vacuum gas tank is how many, all drives vacuum booster 9 to vacuumize vacuum gas tank 7.In the present embodiment, setting-up time is 20 seconds, if in 20 seconds, when the air pressure in vacuum gas tank reaches upper pressure limit value 65KPa, vacuum pump quits work; If in 20 seconds, the current pressure of vacuum gas tank is between low pressure limit value 40KPa and upper pressure limit value 65KPa time, drive the work of vacuum pump intermittence, vacuum pump, in the time of intermittence mode of operation, is worked 20 seconds, stops 10 seconds, at this moment, vacuum gas tank is little gas leakage state, sends breakdown signal to entire car controller and instrument display by controller for vacuum pump, shows failure message; If in 20 seconds, when the current pressure of vacuum gas tank is still less than low pressure limit value 40KPa, at this moment, vacuum gas tank is large gas leakage state, and controller for vacuum pump sends breakdown signal to entire car controller, drives it to control vehicle stop and travels.Vaccum pump motor adopts the control of PMW mode of speed control, and start dutycycle is 100%, shuts down to adopt and stops slowly, in 2 seconds, progressively decays to 0% by PWM.
Claims (5)
1. an electronlmobil vacuum pump control system, it is characterized in that comprising: controller for vacuum pump and the vacuum pump, pressure sensor, BK Brake Switch, instrument display, the entire car controller that are electrically connected with it respectively, wherein, pressure sensor is located at the air extractor duct of vacuum gas tank, for detection of the gaseous tension in vacuum gas tank, BK Brake Switch is connected with brake pedal, and BK Brake Switch is opened, to controller for vacuum pump transmission brake signal; Instrument display, the breakdown signal transmitting for exporting controller for vacuum pump; Entire car controller, under the control of controller for vacuum pump, according to the pressure condition of vacuum pump, adjusts the operation conditions of electronlmobil.
2. electronlmobil vacuum pump control system according to claim 1, it is characterized in that: described vacuum pump control system further comprises vacuum booster, it is arranged between vacuum gas tank and brake pedal, be communicated with vacuum gas tank by extraction pipe, while stepping on brake pedal, BK Brake Switch is connected, and drives vacuum booster to vacuumize to vacuum gas tank.
3. the electronlmobil vacuum pump control system of stating according to claim 2, is characterized in that: described vacuum booster is further communicated with brake pipe.
4. the electronlmobil vacuum pump control system of stating according to claim 2, it is characterized in that: setting pressure lower limit is 40KPa in vacuum gas tank, when setting current pressure is less than low pressure limit value, start vacuum pump work, during higher than upper pressure limit value, stop vacuum pump work.
5. the electronlmobil vacuum pump control system of stating according to claim 4, is characterized in that: in vacuum gas tank, setting pressure higher limit is 65KPa, while setting current pressure higher than upper pressure limit value, stops vacuum pump work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893153.4U CN203766751U (en) | 2013-12-31 | 2013-12-31 | Control system of vacuum pump of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893153.4U CN203766751U (en) | 2013-12-31 | 2013-12-31 | Control system of vacuum pump of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203766751U true CN203766751U (en) | 2014-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320893153.4U Expired - Fee Related CN203766751U (en) | 2013-12-31 | 2013-12-31 | Control system of vacuum pump of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203766751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477158A (en) * | 2014-11-19 | 2015-04-01 | 华晨汽车集团控股有限公司 | Monitoring method for electric vehicle electric vacuum pump |
-
2013
- 2013-12-31 CN CN201320893153.4U patent/CN203766751U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104477158A (en) * | 2014-11-19 | 2015-04-01 | 华晨汽车集团控股有限公司 | Monitoring method for electric vehicle electric vacuum pump |
| CN104477158B (en) * | 2014-11-19 | 2017-01-18 | 华晨汽车集团控股有限公司 | Monitoring method for electric vehicle electric vacuum pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140813 |