CN109733365A - A kind of control system of the electric vacuum pump for electric car - Google Patents
A kind of control system of the electric vacuum pump for electric car Download PDFInfo
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- CN109733365A CN109733365A CN201910130595.5A CN201910130595A CN109733365A CN 109733365 A CN109733365 A CN 109733365A CN 201910130595 A CN201910130595 A CN 201910130595A CN 109733365 A CN109733365 A CN 109733365A
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- 230000006698 induction Effects 0.000 claims description 4
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- 230000005611 electricity Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
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- 230000007613 environmental effect Effects 0.000 description 1
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Abstract
The invention discloses a kind of control systems of electric vacuum pump for electric car, including battery, relay and electric vacuum pump, ignition switch is in series between battery and relay, electric vacuum pump is connected with temperature sensor and humidity sensor, and ECU control unit is connected with alarm device；Electric vacuum pump connects vacuum power accumulating cylinder, and vacuum power accumulating cylinder is connected with vacuum sensor, and vacuum sensor connects ECU control unit, and ECU control unit and relay are electrically connected.The present invention overcomes the deficiencies in the prior art, when temperature or humidity reaches certain value, control cut-off electric vacuum pump by ECU control unit, and control temperature buzzer or wetness alarm unlatching alarm；The signal that is transmitted by ECU control unit combination vacuum degree and speed with pedal speed is simultaneously calculated, when vacuum degree is high, ECU control unit control cut-off electric vacuum pump, make electric vacuum pump neither can long time running be damaged, also reach energy-efficient effect.
Description
Technical field
Field is used the present invention relates to electric vacuum pump of automobile, and in particular to a kind of Motorized vacuum for electric car
The control system of pump.
Background technique
As energy crisis, environmental problem etc. become increasingly conspicuous, electric car is by the whole nation or even global concern.Pure electricity
Electrical automobile braking system has extremely important effect in vehicle travel process, and digital electric vacuum assistance system is by Motorized vacuum
Pump, vacuum tank and controller composition.Electric vacuum pump is exactly the vacuum servo after cancelling engine in order to avoid braking system
The vacuum source of system scatters and disappears and a necessary increased components assembly.It can be provided by electrical energy drive for vacuum boost system
Reliably, enough vacuum sources.
And existing electric car mostly uses greatly electric vacuum pump to work without cessation to vacuumize, until driver's key
Ignition switch is closed, electric vacuum pump just stops working, so that electric vacuum pump be made not only to consume electric power storage in electric car
The electricity in pond also shortens the service life of electric vacuum pump；And when the biggish air of humidity is entered vacuum pump and true
Sky pump long time running, causes vacuum pump high temperature to burn, to cause safety accident.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of control systems of electric vacuum pump for electric car
System, overcomes the deficiencies in the prior art, when in use, controls electric vacuum pump by relay and opens, then pass through temperature sensing
Device and temperature and humidity in humidity sensor induction electric vacuum pump simultaneously transfer signals to ECU control unit, are controlled by ECU
Unit handles signal, electronic true by ECU control unit control cut-off when temperature or humidity reaches certain value
Sky pump, and temperature buzzer or wetness alarm unlatching alarm are controlled, it is watchful to play the role of；Electricity is stored by vacuum power accumulating cylinder again
Vacuum pressure caused by dynamic vacuum pump, and by the vacuum degree signal in vacuum sensor induction vacuum power accumulating cylinder, and will letter
Number it is transferred to ECU control unit, then the signal transmitted by ECU control unit combination vehicle speed sensor and pedal speed sensor
And calculation processing is carried out, when vacuum degree is higher than certain value, ECU control unit controls cut-off electric vacuum pump, thus
Both so that electric vacuum pump is not damaged because of long time running, and can also reach energy-efficient effect.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs:
A kind of control system of the electric vacuum pump for electric car, including battery, relay and electric vacuum pump,
Ignition switch is in series between the battery and relay, the relay and electric vacuum pump are electrically connected, described electronic
Vacuum pump is connected with temperature sensor and humidity sensor, for detecting the temperature and humidity in electric vacuum pump, the temperature
Temperature and humidity signal is transferred to ECU control unit by sensor and humidity sensor, and the ECU control unit is connected with alarm
Device；The electric vacuum pump connects vacuum power accumulating cylinder, and it is true for incuding that the vacuum power accumulating cylinder is connected with vacuum sensor
Reciprocal of duty cycle, the vacuum sensor connect ECU control unit and the vacuum degree signal in vacuum power accumulating cylinder are transferred to ECU control
Unit, the ECU control unit and relay are electrically connected.
Preferably, the ECU control unit is connected with vehicle speed sensor and pedal speed sensor, for receiving and processing
Pedal speed signal when speed signal and driving.
Preferably, fuse is provided in the ignition switch.
Preferably, the alarm device includes temperature buzzer and wetness alarm.
Preferably, vacuum booster, the vacuum servo are connected between the vacuum power accumulating cylinder and vacuum sensor
Device connects automotive brake.
Preferably, the vacuum sensor is connected with detection unit, the damage degree for detection sensor.
(3) beneficial effect
The embodiment of the invention provides a kind of control systems of electric vacuum pump for electric car.Have following beneficial
Effect: when in use, electric vacuum pump is controlled by relay and is opened, then passes through temperature sensor and humidity sensor induced electricity
It moves the temperature and humidity in vacuum pump and transfers signals to ECU control unit, signal is handled by ECU control unit,
When temperature or humidity reaches certain value, cut-off electric vacuum pump is controlled by ECU control unit, and control temperature buzzer
Device or wetness alarm open alarm, watchful to play the role of；It is true as caused by vacuum power accumulating cylinder storage electric vacuum pump again
Pneumatics power, and by the vacuum degree signal in vacuum sensor induction vacuum power accumulating cylinder, and it is single to transmit a signal to ECU control
Member, then the signal that is transmitted by ECU control unit combination vehicle speed sensor and pedal speed sensor and calculation processing is carried out, when
When vacuum degree is higher than certain value, ECU control unit controls cut-off electric vacuum pump, to both make electric vacuum pump will not
Because long time running is damaged, it can also reach energy-efficient effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.
Fig. 1 is system block diagram of the invention；
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.
A kind of control system of the electric vacuum pump for electric car, including battery, relay and electric vacuum pump,
Ignition switch is in series between the battery and relay, the relay and electric vacuum pump are electrically connected, described electronic
Vacuum pump is connected with temperature sensor and humidity sensor, for detecting the temperature and humidity in electric vacuum pump, the temperature
Temperature and humidity signal is transferred to ECU control unit by sensor and humidity sensor, and the ECU control unit is connected with alarm
Device；The electric vacuum pump connects vacuum power accumulating cylinder, and it is true for incuding that the vacuum power accumulating cylinder is connected with vacuum sensor
Reciprocal of duty cycle, the vacuum sensor connect ECU control unit and the vacuum degree signal in vacuum power accumulating cylinder are transferred to ECU control
Unit, the ECU control unit and relay are electrically connected.
The ECU control unit is connected with vehicle speed sensor and pedal speed sensor, for receiving and processing speed letter
Number and driving when pedal speed signal.Enable ECU control unit combination speed and with pedal speed when driving to Motorized vacuum
The time of the unlatching of pump is calculated and is controlled, to reach energy-saving effect.
Fuse is provided in the ignition switch.Device can be played a certain protective role by fuse.
The alarm device includes temperature buzzer and wetness alarm.
Vacuum booster is connected between the vacuum power accumulating cylinder and vacuum sensor, the vacuum booster connects vapour
Vehicle brake.
The vacuum sensor is connected with detection unit, the damage degree for detection sensor.If vacuum degree senses
The voltage value of device exceeds range of normal value, it is believed that vacuum sensor damage or error are big, and system will start warning note.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is described in detail, those skilled in the art should understand that: it still can be to foregoing embodiments
Documented technical solution is modified or equivalent replacement of some of the technical features；And these are modified or replace
It changes, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (6)
1. a kind of control system of the electric vacuum pump for electric car, including battery, relay and electric vacuum pump,
It being characterized in that: being in series with ignition switch between the battery and relay, the relay and electric vacuum pump are electrically connected,
The electric vacuum pump is connected with temperature sensor and humidity sensor, for detecting the temperature and humidity in electric vacuum pump,
Temperature and humidity signal is transferred to ECU control unit by the temperature sensor and humidity sensor, and the ECU control unit connects
It is connected to alarm device；The electric vacuum pump connects vacuum power accumulating cylinder, and the vacuum power accumulating cylinder is connected with vacuum sensor use
In induction vacuum degree, the vacuum sensor connects ECU control unit and transmits the vacuum degree signal in vacuum power accumulating cylinder
To ECU control unit, the ECU control unit and relay are electrically connected.
2. a kind of control system of electric vacuum pump for electric car according to claim 1, it is characterised in that: institute
It states ECU control unit and is connected with vehicle speed sensor and pedal speed sensor, when for receiving and processing speed signal and driving
Pedal speed signal.
3. a kind of control system of electric vacuum pump for electric car according to claim 1, it is characterised in that: institute
It states and is provided with fuse in ignition switch.
4. a kind of control system of electric vacuum pump for electric car according to claim 1, it is characterised in that: institute
Stating alarm device includes temperature buzzer and wetness alarm.
5. a kind of control system of electric vacuum pump for electric car according to claim 1, it is characterised in that: institute
It states and is connected with vacuum booster between vacuum power accumulating cylinder and vacuum sensor, the vacuum booster connects automotive brake.
6. a kind of control system of electric vacuum pump for electric car according to claim 1, it is characterised in that: institute
It states vacuum sensor and is connected with detection unit, the damage degree for detection sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910130595.5A CN109733365A (en) | 2019-02-21 | 2019-02-21 | A kind of control system of the electric vacuum pump for electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910130595.5A CN109733365A (en) | 2019-02-21 | 2019-02-21 | A kind of control system of the electric vacuum pump for electric car |
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| Publication Number | Publication Date |
|---|---|
| CN109733365A true CN109733365A (en) | 2019-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910130595.5A Pending CN109733365A (en) | 2019-02-21 | 2019-02-21 | A kind of control system of the electric vacuum pump for electric car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112896129A (en) * | 2020-05-07 | 2021-06-04 | 重庆长安汽车股份有限公司 | Control method for electronic vacuum pump of pure electric vehicle |
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|---|---|---|---|---|
| CN101973264A (en) * | 2010-10-18 | 2011-02-16 | 浙江吉利汽车研究院有限公司 | Electric vacuum pump control circuit of electric vehicle |
| US20110089754A1 (en) * | 2009-10-21 | 2011-04-21 | Sen Feng | Brake auxiliary system of electric car |
| CN104260718A (en) * | 2014-10-11 | 2015-01-07 | 北京英创汇智科技有限公司 | Brake system for realizing self-protection function of electric vacuum pump and control method thereof |
| WO2016016937A1 (en) * | 2014-07-29 | 2016-02-04 | ニチユ三菱フォークリフト株式会社 | Brake system and brake control method |
| CN105523032A (en) * | 2016-02-26 | 2016-04-27 | 成都雅骏新能源汽车科技股份有限公司 | Electric motorcar vacuum boost control system and control method thereof |
| CN207173580U (en) * | 2017-08-01 | 2018-04-03 | 风度（常州）汽车研发院有限公司 | A kind of vacuum boost system and electric automobile |
-
2019
- 2019-02-21 CN CN201910130595.5A patent/CN109733365A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110089754A1 (en) * | 2009-10-21 | 2011-04-21 | Sen Feng | Brake auxiliary system of electric car |
| CN101973264A (en) * | 2010-10-18 | 2011-02-16 | 浙江吉利汽车研究院有限公司 | Electric vacuum pump control circuit of electric vehicle |
| WO2016016937A1 (en) * | 2014-07-29 | 2016-02-04 | ニチユ三菱フォークリフト株式会社 | Brake system and brake control method |
| CN104260718A (en) * | 2014-10-11 | 2015-01-07 | 北京英创汇智科技有限公司 | Brake system for realizing self-protection function of electric vacuum pump and control method thereof |
| CN105523032A (en) * | 2016-02-26 | 2016-04-27 | 成都雅骏新能源汽车科技股份有限公司 | Electric motorcar vacuum boost control system and control method thereof |
| CN207173580U (en) * | 2017-08-01 | 2018-04-03 | 风度（常州）汽车研发院有限公司 | A kind of vacuum boost system and electric automobile |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112896129A (en) * | 2020-05-07 | 2021-06-04 | 重庆长安汽车股份有限公司 | Control method for electronic vacuum pump of pure electric vehicle |
| CN112896129B (en) * | 2020-05-07 | 2022-12-09 | 重庆长安汽车股份有限公司 | Control method for electronic vacuum pump of pure electric vehicle |
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Application publication date: 20190510 |
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