CN103507642A - Electric defrosting energy-saving control system, electric defrosting energy-saving control method and electric automobile using the system - Google Patents
Electric defrosting energy-saving control system, electric defrosting energy-saving control method and electric automobile using the system Download PDFInfo
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- CN103507642A CN103507642A CN201310419900.5A CN201310419900A CN103507642A CN 103507642 A CN103507642 A CN 103507642A CN 201310419900 A CN201310419900 A CN 201310419900A CN 103507642 A CN103507642 A CN 103507642A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
The invention discloses an electric defrosting energy-saving control system, an electric defrosting energy-saving control method and an electric automobile using the system. The electric defrosting energy-saving control system comprises a rocker switch arranged at the input control end of an electric defrosting device, wherein the rocker switch is in series connection with one electric defrosting relay, and an automobile controller is in controlled connection with the electric defrosting relay and used for being in communication with a battery management system (BMS) of a power battery pack. The electric defrosting energy-saving control system, the electric defrosting energy-saving control method and the electric automobile using the system utilize one electric defrosting relay and a relay contact to control starting and stopping of the electric defrosting device, the BMS sends information of the power battery pack to the automobile controller, the automobile controller performs logical judgment and accordingly controls disconnection and connection of the electric defrosting relay, over discharge of power batteries can be avoided, electric energy can be saved, and the service life of the power batteries is also prolonged. The electric defrosting energy-saving control system is simple in structure, an original structure of the automobile controller is not damaged, and only an additional control port is needed.
Description
Technical field
The present invention relates to a kind of electronlmobil of electricity defrosting energy-saving control system, control method and this system of use.
Background technology
At present, at auto trade, for avoiding winter vehicle window to freeze, haze, defrost function (comprising back mirror defrosting, rear seat windscreen defrosting), for terminal user vehicle, is used more and more common.The utilization of this technology becomes already and solves vehicle safety in winter, easy-to-use important solutions.Electric defroster device when dispatching from the factory, has all been installed most of electronlmobils.It is comprised of electro heat and blowing parts; During work, electro heat is by high-tension current (power battery pack) power supply, and blowing parts are powered by low tension (24V power supply), when i.e. electricity defrosting is opened, electro heat first heats heating wire, then by blowing parts, warm braw is blowed to glass, plays the effect of ice-melt, defrosting, demist.Existing pure electric coach power on defrosting start and stop by manual control, driving compartment gauge panel is provided with electricity defrosting rocker switch, driver completes the start and stop of electricity defrosting by pressing this switch, do not consider the voltage of power battery pack during electric defrosting work, does not consider trouble diagnosing.
Be subject to the impact of weather winter, the work frequency of electricity defrosting increases, its high-tension current of working provides by power battery pack, because defogger is all generally electric heater, need the more electric energy of consumption rate, and power battery pack is again the power supply source of other high-voltage electrical apparatus parts, the frequent operation of electricity defrosting, aggravate the power consumption of electrokinetic cell, also directly affected the car load power consumption of pure electric coach.Because electricity defrosting on off control is non intelligent control, if not in addition reasonably control can cause the lasting consumption of electric weight or the mistake of battery to put.Therefore, in defrost process, if voltage current in electrokinetic cell is less, consume the voltage of a lot of batteries, will cause cell pressure after being reduced to a certain degree, under vehicle electrical systems high-load operation condition, probably generation systems voltage is dragged down that similar drive motor cannot work and the serious consequence that affects traffic safety.Suppose that driver has opened electric defrosting in the situation that of electrokinetic cell electric weight deficiency, can cause other high voltage component cisco unity malfunction, or car load under power, have at any time the danger of casting anchor; The mistake that can cause what is more battery is put into and is shortened service life of electrokinetic cell; If electricity defrosting is still in running order during battery management system (BMS) et out of order, can impact the reliability of electrokinetic cell and car load.
Summary of the invention
The object of this invention is to provide a kind of electricity defrosting energy-saving control system, to solve existing control system, cannot according to electrokinetic cell state automatic control electric defrosting start and stop, cause the problem of car load under power, a kind of electric defrosting control method and a kind of electronlmobil that uses this control system are provided simultaneously.
In order to realize above object, the technical scheme of electricity defrosting energy-saving control system provided by the invention is as follows: electricity defrosting energy-saving control system, comprise for being arranged on the rocker switch of the input control end of electric defroster device, described rocker switch is connected with an electricity defrosting relay, entire car controller is connected with described electricity defrosting Control, and described entire car controller is for the BMS communication connection with power battery pack.
Described rocker switch is connected with the normally closed contact of an electricity defrosting relay.
Defrost and by cable, be connected between relay with electricity in the control output end of described entire car controller.
The technical scheme of electronlmobil provided by the invention is as follows: comprise electric defroster device and electricity defrosting energy-saving control system thereof, electricity defrosting energy-saving control system comprises the rocker switch that the input control end of electric defroster device arranges, described rocker switch is connected with an electricity defrosting relay, entire car controller is connected with described electricity defrosting Control, the BMS communication connection of described entire car controller and power battery pack.
Described rocker switch is connected with the normally closed contact of an electricity defrosting relay.
Defrost and by cable, be connected between relay with electricity in the control output end of described entire car controller.
The technical scheme of electricity defrosting energy-saving control method provided by the invention is as follows: the method comprises the steps:
(1) judge whether power battery pack breaks down, if the fault of existence is controlled electricity defrosting relay contact and disconnected, electric defroster device is quit work; If there is no fault, judge whether the voltage of current power battery pack continues to be less than or equal to lower voltage limit setting value in the first setting-up time section;
(2) if the voltage of power battery pack is less than or equal to lower voltage limit setting value in the first setting-up time section always, control electricity defrosting relay contact and disconnect, electric defroster device is quit work, otherwise control electricity defrosting relay contact closure;
(3) under electricity defrosting relay contact disconnection, whether the voltage that judges current power battery pack continues to be greater than lower limit set value in the second setting-up time section, if be greater than lower limit set value within this time period always, and during power battery pack trouble free, control electricity defrosting relay contact closure, otherwise still keep the off-state of electricity defrosting relay contact.
The first setting-up time section is 5S, and the second setting-up time section is 10S.
The electronlmobil of electricity defrosting energy-saving control system, control method and this system of use of the present invention utilizes an electricity defrosting relay and contact thereof to control the start and stop of electric defroster device, BMS sends to entire car controller by power battery voltage and the failure diagnosis information of himself through CAN line, thereby carry out by entire car controller the disconnection and closure that electricity defrosting relay is controlled in logic judgement, reach the object of controlling electric defroster device start and stop, can avoid electrokinetic cell over discharge, make the unlikely deterioration of car load economy, save electric energy, also extended the service life of electrokinetic cell; In addition, the introducing of electrokinetic cell trouble diagnosing, has also increased the safety of electrokinetic cell and car load.This control system is simple in structure, does not destroy the original structure of entire car controller, only needs the extra control port that increases.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of electricity defrosting energy-saving control system embodiment;
Fig. 2 is the control flow chart of electricity defrosting energy-saving control system;
Fig. 3 is entire car controller software control flow chart;
Fig. 4 is software and hardware combining schematic flow sheet.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is described further.
The invention provides a kind of electronlmobil with electricity defrosting energy-saving control system, comprise the electric defroster device and the electricity defrosting energy-saving control system thereof that by electric heating element and blowing parts, are formed, blowing parts supply to be electrically connected to vehicle-mounted low potential source, electric heating element supplies to be electrically connected to power battery pack, as shown in Figure 1, electricity defrosting energy-saving control system comprises the rocker switch 8 being connected between the input control end 6 of vehicle-mounted low potential source (being 24V battery feed) 5 and vehicle-mounted low potential source and electric defroster device 7, rocker switch 8 is connected with an electricity defrosting relay 4, entire car controller 1 and electricity defrosting relay 4 control linkages, entire car controller 1 communicates to connect with the BMS9 of power battery pack 10.
In the present embodiment, rocker switch 8 is connected with the normally closed contact of an electricity defrosting relay 4; Entire car controller 1 is connected with the coil power supply of electricity defrosting relay by driving circuit.
The electro heat of this electric defroster device and blowing parts belong to prior art with the connection of corresponding power supply, do not repeat them here.
The present invention also provides a kind of electricity defrosting energy-saving control system, concrete structure as mentioned above, this control system is particularly useful for the electricity defrosting that pure electric vehicle is used, in the situation that keeping former electricity defrosting control constant, increase entire car controller and control the work of electricity defrosting relay according to the voltage of power battery pack and trouble diagnosing, realize energy-conservation.
The working power power supply of electricity defroster device 7 is by rocker switch 8 and electricity defrosting relay 4 co-controllings, and rocker switch 8 is arranged on the control input end 6 of electric defroster device 7; Entire car controller 1 is provided with electricity defrosting Control output pin 2, and it defrosts and with cable 3, be connected between relay 4 with electricity; Disconnection and closed ，Gai contact that electricity defrosting relay 4 is controlled its contact by entire car controller 1 are normally off at ordinary times, keep on-state with rocker switch 8, when driver operation rocker switch 8, can directly control the start and stop of electric defroster device 7; The voltage of power battery pack 10 and failure message send entire car controller 1 to by battery management system (BMS) 9, and entire car controller judges by internal logic again, output corresponding control signal.
As shown in Figure 2, when the voltage of power battery pack 10 is normal and during trouble free, entire car controller 1 is controlled the closing of contact of electricity defrosting relay 4, keep normally off, keep connecting with electricity defrosting control input end 6, when driver operation rocker switch 8, can directly control the start and stop of electric defroster device 7; When the voltage of power battery pack 10 is lower or have fault to occur, entire car controller 1 is controlled electricity defrosting relay 4 and is disconnected normally closed contact, i.e. disconnection is connected with electric defroster device control input end 6, now driver presses rocker switch 8 to open electric defroster device invalid, or when opening electric defroster device, it is quit work, guaranteed the safety of driving.
In addition, in controlling the start and stop working process of electric defroster device, rocker switch 8 continues the start and stop that the manually operated function of performance is controlled electric defroster device work.
The present invention also provides a kind of electricity defrosting energy-saving control method, and the method is to utilize Matlab/Simulink Software for Design to build to control model as the software control of entire car controller, and the input message of model is current battery voltage and failure message.If Fig. 3 is this system entire car controller software control flow chart, the method comprises the steps:
(1) judge whether power battery pack breaks down, when power battery pack being detected and have fault alarm, entire car controller output high level 1, controls electricity defrosting relay and disconnects, and electric defroster device is quit work; While trouble free warning being detected, whether the voltage that judges current power battery pack continues to be less than or equal to lower voltage limit setting value (this limiting voltage is different and different according to electric properties of battery unit) in the first setting-up time section (setting-up time is to guarantee that now voltage, in stable, is avoided fluctuation);
(2) if the voltage of power battery pack is less than or equal to lower voltage limit setting value in the first setting-up time section always, entire car controller is exported high level 1, controlling electricity defrosting relay disconnects, electric defroster device is quit work, otherwise entire car controller output high level 0, controls electricity defrosting relay closes;
(3) at electricity defrosting relay, disconnect, be in the situation of high level 1, in the second setting-up time section, (this time can guarantee that voltage is in stable to the voltage that judges current power battery pack, avoid fluctuation) in whether continue to be greater than lower limit set value, if be greater than lower limit set value within this time period always, and during power battery pack trouble free, entire car controller is exported high level 0 again, control electricity defrosting relay closes, otherwise still keep the off-state of electricity defrosting relay.
The numerical value of above-mentioned the first setting-up time section and the second setting-up time section is demarcated and is determined according to power battery pack characteristic and real vehicle, and different its values of establishing of vehicle condition is difference also; The first setting-up time section of this enforcement is preferably 5S, and the second setting-up time section is preferably 10S.
As shown in Figure 4, the control model generation code that above software is built and bottom program code are integrated and compile, and write with a brush dipped in Chinese ink afterwards into entire car controller, and real vehicle operation, realizes whole control functions of soft and hardware combination.
Claims (8)
1. an electricity defrosting energy-saving control system, comprise for being arranged on the rocker switch of the input control end of electric defroster device, it is characterized in that: described rocker switch is connected with an electricity defrosting relay, entire car controller is connected with described electricity defrosting Control, and described entire car controller is for the BMS communication connection with power battery pack.
2. electricity defrosting energy-saving control system according to claim 1, is characterized in that: described rocker switch is connected with the normally closed contact of an electricity defrosting relay.
3. electricity defrosting energy-saving control system according to claim 1 and 2, is characterized in that: defrost and by cable, be connected between relay with electricity in the control output end of described entire car controller.
4. an electronlmobil that uses electricity defrosting energy-saving control system as claimed in claim 1, comprise electric defroster device and electricity defrosting energy-saving control system thereof, electricity defrosting energy-saving control system comprises the rocker switch that the input control end of electric defroster device arranges, it is characterized in that: described rocker switch is connected with an electricity defrosting relay, entire car controller is connected with described electricity defrosting Control, the BMS communication connection of described entire car controller and power battery pack.
5. electronlmobil according to claim 4, is characterized in that: described rocker switch is connected with the normally closed contact of an electricity defrosting relay.
6. according to the electronlmobil described in claim 4 or 5, it is characterized in that: defrost and by cable, be connected between relay with electricity in the control output end of described entire car controller.
7. an electricity defrosting energy-saving control method that uses electricity defrosting energy-saving control system as claimed in claim 1, is characterized in that, the method comprises the steps:
(1) judge whether power battery pack breaks down, if the fault of existence is controlled electricity defrosting relay and disconnected, electric defroster device is quit work; If there is no fault, judge whether the voltage of current power battery pack continues to be less than or equal to lower voltage limit setting value in the first setting-up time section;
(2) if the voltage of power battery pack is less than or equal to lower voltage limit setting value in the first setting-up time section always, control electricity defrosting relay and disconnect, electric defroster device is quit work, otherwise control electricity defrosting relay closes;
(3) under electricity defrosting relay disconnection, whether the voltage that judges current power battery pack continues to be greater than lower limit set value in the second setting-up time section, if be greater than lower limit set value within this time period always, and during power battery pack trouble free, control electricity defrosting relay closes, otherwise still keep the off-state of electricity defrosting relay.
8. electricity defrosting energy-saving control method according to claim 7, is characterized in that: the first setting-up time section is 5S, and the second setting-up time section is 10S.
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| CN201310419900.5A CN103507642B (en) | 2013-09-13 | 2013-09-13 | The electronlmobil of electricity defrosting energy-saving control system, control method and this system of use |
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| CN201310419900.5A CN103507642B (en) | 2013-09-13 | 2013-09-13 | The electronlmobil of electricity defrosting energy-saving control system, control method and this system of use |
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Cited By (5)
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| US10080257B2 (en) | 2015-08-11 | 2018-09-18 | Ford Global Technologies, Llc | Windshield deicer power conservation system |
| CN108725233A (en) * | 2017-04-25 | 2018-11-02 | 郑州宇通客车股份有限公司 | Battery management system and vehicle management system with all the period of time monitoring |
| CN110188373A (en) * | 2019-04-11 | 2019-08-30 | 汉腾汽车有限公司 | A kind of positive relay switch control method of power battery master |
| CN110254233A (en) * | 2018-03-12 | 2019-09-20 | 郑州宇通客车股份有限公司 | A kind of power battery protection device, electricity defrosting control system and vehicle |
| CN110497796A (en) * | 2019-09-25 | 2019-11-26 | 安徽工程大学 | A kind of low-voltage power supply system and its control method of new-energy automobile |
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| CN110497796A (en) * | 2019-09-25 | 2019-11-26 | 安徽工程大学 | A kind of low-voltage power supply system and its control method of new-energy automobile |
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Inventor after: Gao Yunqing Inventor after: Peng Nengling Inventor after: Chen Huiyong Inventor after: Li Yurui Inventor after: Zhou Yuanyuan Inventor after: Tao Gaowei Inventor before: Zhou Yuanyuan Inventor before: Tao Gaowei Inventor before: Gao Yunqing Inventor before: Li Yurui |
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Free format text: CORRECT: INVENTOR; FROM: ZHOU YUANYUAN TAO GAOWEI GAO YUNQING LI YURUI TO: GAO YUNQING PENG NENGLING CHEN HUIYONG LI YURUI ZHOU YUANYUAN TAO GAOWEI |
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Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co., Ltd Address before: 450016 Yutong Industrial Zone, eighteen Li River, Henan, Zhengzhou Patentee before: Zhengzhou Yutong Bus Co., Ltd |