CN104943561A - Vehicle-mounted charging mode end phase control method - Google Patents
Vehicle-mounted charging mode end phase control method Download PDFInfo
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- CN104943561A CN104943561A CN201510417046.8A CN201510417046A CN104943561A CN 104943561 A CN104943561 A CN 104943561A CN 201510417046 A CN201510417046 A CN 201510417046A CN 104943561 A CN104943561 A CN 104943561A
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention belongs to the technical field of automobile control systems and provides a vehicle-mounted charging mode end phase control method. The method comprises steps as follows: whether a vehicle-mounted charging relay is disconnected is detected after a command for disconnecting the vehicle-mounted charging relay is sent; if yes, whether a main positive sequence relay and a main negative sequence relay are disconnected is detected after a command for disconnecting the main positive sequence relay and the main negative sequence relay is sent; if the main positive sequence relay and the main negative sequence relay are both disconnected, the vehicle-mounted charging relay is successfully disconnected. With the adding of the process of detecting whether a vehicle-mounted charger, the main positive sequence relay and the main negative sequence relay are disconnected, disconnection of the whole high-voltage relay is guaranteed, damage to a battery pack due to unsuccessful disconnection of the high-voltage relay is avoided, and the service life of the battery pack is prolonged. Meanwhile, the safety level of the vehicle is improved with the control method, and the vehicle performance is optimized.
Description
Technical field
The invention belongs to automotive control system technical field, be specifically related to a kind of vehicle-mounted charge pattern ending phase control method.
Background technology
Along with people are to the continuous concern of energy security, new-energy automobile also becomes the focus of people's growing interest, and following electronlmobil will become the emphasis direction of automotive technology development.The energy source of pure electric automobile is in power brick, and the energy source of power brick comes from process of charging, in the process of charging of car load, need charging control function, in existing control system, the control flow of vehicle-mounted charge pattern ending phase is generally: enter electric current journey under vehicle-mounted charge, first judge whether power brick is full of electricity, if power brick is full of electricity, directly disconnect all high-voltage relays, terminate; If power brick underfill is electric, judges process of charging whether et out of order, if trouble free, then disconnect all high-voltage relays, terminate; If process of charging et out of order, then report generation charge fault, then disconnect all high-voltage relays, terminate.
In the prior art scheme, only perform the operating order of closing high-voltage relay, and in fact, close in the process of high-voltage relay, as electric unsuccessful problem under having there is relay, cannot be diagnosed inside this control logic, easily cause the damage of power brick, shorten its service life, and this control method, cause the safe class of vehicle to reduce, affect vehicle performance; Reckon without the faulty condition run in lower electric process in existing control flow, these faults also can cause wagon control logic disorderly, reduce vehicle safety simultaneously.
Summary of the invention
The object of this invention is to provide a kind of vehicle-mounted charge pattern ending phase control method, by increasing the detection to success or not electric under each high-voltage relay, can power brick be protected, extend its service life, and improve the safe class of vehicle.
To achieve these goals, the invention provides following technical scheme:
A kind of vehicle-mounted charge pattern ending phase control method, described method comprises:
Step S1: enter electric current journey under vehicle-mounted charge;
Step S2: detect charging power up whether et out of order, if the non-et out of order of described charging power up, perform step S31;
Step S31: send and disconnect the order of vehicle-mounted charge relay;
Step S4: detect described vehicle-mounted charge relay and whether disconnect, if disconnect, performs step S51;
Step S51: send and disconnect main positive relay, main negative relay order;
Step S6: detect the positive relay of described master, whether described master bear relay and disconnect, if the two all disconnects, performs step S71;
Step S71: electricity success under vehicle-mounted charge;
Step S8: terminate.
Further, described step S2 also comprises: if described charging power up et out of order, performs step S32;
Step S32: send diagnostic code, close described vehicle-mounted charge relay, the positive relay of described master and described master and bear relay, performs step S8.
Further, described step S31 comprises:
Step S311: detect battery and whether be full of electricity, if described battery underfill is electric, performs step S3121;
Step S3121: detect charging gun and whether extract, if described charging gun is extracted, performs step S3131;
Step S3131: send and disconnect the order of described vehicle-mounted charge relay, performs step S4.
Further, described step S311 also comprises: if described battery is full of electricity, performs step S3122;
Step S3122: send battery and be full of information, and cancel charging wake-up signal, perform step S3131.
Further, step S3121 also comprises: if described charging gun is not extracted, and performs step S3132;
Step S3132: wait for that described charging gun is extracted, proceeds to step S3121 and performs.
Further, described step S3131 also comprises: from transmission disconnects the order of vehicle-mounted charge relay, record the very first time;
Described step S4 also comprises: if described vehicle-mounted charge relay does not disconnect, and performs step S521;
Step S521: whether detect the described very first time is greater than the first preset value, if the described very first time is not more than described first preset value, returns and performs step S4; If the described very first time is greater than described first preset value, perform step S522;
Step S522: send the information that vehicle-mounted charge relay disconnects time out fault, proceed to step S8.
Further, described step S51 comprises:
Step S511: detect ignition lock and whether be in ON position, if described ignition lock is not in ON position, performs step S5121;
Step S5121: send the order of closing electric pressure converter;
Step S513: detect described electric pressure converter and whether close, if described electric pressure converter is closed, performs step S5141;
Step S5141: send and close main positive relay, main negative relay order.
Further, described step S511 also comprises: if described ignition lock is in ON position, performs step S5122;
Step S5122: control car load and enter low-pressure system awakening mode, perform step S8.
Further, described step S5121 also comprises: from electric pressure converter order is closed in transmission, recorded for the second time;
Step S513 also comprises: if described electric pressure converter is not closed, and performs step S51421;
Step S51421: whether detect described second time is greater than the second preset value, if described second time is not more than described second preset value, returns and performs step S513; If described second time is greater than described second preset value, perform step S51422;
Step S51422: send voltage converter and close time out fault, perform step S8.
Further, described step S5141 also comprises: from transmission disconnects the positive relay of described master, main negative relay order, recorded for the 3rd time;
Described step S6 also comprises: have one not disconnect if the positive relay of described master and described master bear relay, performs step S721;
Step S721: whether detect described 3rd time is greater than the 4th preset value, if described 3rd time is not more than described the but preset value, returns and performs step S6; If described 3rd time is greater than described 3rd preset value, perform step S722;
Step S722: the main positive relay of transmission and/or described master bear the information that relay disconnects time out fault, proceed to step S8.
Beneficial effect of the present invention is:
The testing process that whether the present invention disconnects by increasing vehicle-mounted relay, whether main positive relay disconnects, whether main negative relay disconnects, to ensure electricity success under whole high-voltage relay, avoid power brick due to the unsuccessful damage caused of electricity under high-voltage relay, extend the service life of power brick; Meanwhile, this kind of control method improves the safe class of vehicle, optimizes vehicle performance.
Accompanying drawing explanation
Fig. 1 is the diagram of circuit of a kind of detailed description of the invention of vehicle-mounted charge pattern ending phase control method provided by the present invention;
Fig. 2 is the diagram of circuit of the another kind of detailed description of the invention of vehicle-mounted charge pattern ending phase control method provided by the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Please refer to Fig. 1-Fig. 2, in a kind of detailed description of the invention, vehicle-mounted charge pattern ending phase control method provided by the present invention, comprising:
Step S1: enter electric current journey under vehicle-mounted charge;
Step S2: detect charging power up whether et out of order, if the non-et out of order of charging power up, perform step S31;
Step S31: send and disconnect the order of vehicle-mounted charge relay;
Step S4: detect vehicle-mounted charge relay and whether disconnect, if disconnect, performs step S51;
Step S51: send and disconnect main positive relay, main negative relay order;
Step S6: detect main positive relay, whether main negative relay disconnects, if the two all disconnects, perform step S71;
Step S71: electricity success under vehicle-mounted charge;
Step S8: terminate.
The testing process that whether above-described embodiment disconnects by increasing onboard charger, whether main positive relay disconnects, whether main negative relay disconnects, to ensure electricity success under whole high-voltage relay, avoid power brick due to the unsuccessful damage caused of electricity under high-voltage relay, extend the service life of power brick; Meanwhile, this kind of control method improves the safe class of vehicle, optimizes vehicle performance.
Step S2 also comprises: if charging power up et out of order, perform step S32;
Step S32: send diagnostic code, closes vehicle-mounted charge relay, main positive relay and main negative relay, performs step S8.
This step solves the problem how charging power up et out of order processes, and avoids, because the upper electric fault that powers on causes the disorder of whole system, improve the safety of vehicle.
Step S32 also comprises and sends alerting signal, as voice message, or alarm lamp flicker.To cause operating personal to note, and then fast processing fault.
Step S31 comprises:
Step S311: detect battery and whether be full of electricity, if battery underfill is electric, performs step S3121;
Step S3121: detect charging gun and whether extract, if charging gun is extracted, performs step S3131;
Step S3131: send and disconnect vehicle-mounted relay order, performs step S4.
This process detected and increases battery and be full of the step whether whether electric, charging gun extract before vehicle-mounted charge cut-off, and make whole control system more perfect, reliability is higher.
Step S311 also comprises: if battery is full of electricity, performs step S3122;
Step S3122: send battery and be full of information, and cancel charging wake-up signal, perform step S3131.
When battery is full of electricity, this process saves the detection whether charging gun is extracted, and can save whole control program, improves the execution efficiency of whole system.Certainly, battery is full of electricity and also can detects charging gun and whether extract, but this kind of mode complex steps, increase the operation burden of control program.
Step S3121 also comprises: if charging gun is not extracted, and performs step S3132;
Step S3132: wait for that charging gun is extracted, proceeds to step S3121 and performs.
This process just closes vehicle-mounted charge relay until charging gun is extracted, and to guarantee the end of process of charging, avoids closing vehicle-mounted charge relay in process of charging.
Step S3131 also comprises: from transmission disconnects the order of vehicle-mounted charge relay, record the very first time;
Step S4 also comprises: if vehicle-mounted charge relay does not disconnect, and performs step S521;
Step S521: whether the detection very first time is greater than the first preset value, if the very first time is not more than the first preset value, returns and performs step S4; If the very first time is greater than the first preset value, perform step S522;
Step S522: send the information that vehicle-mounted charge relay disconnects time out fault, proceed to step S8.
This process, when vehicle-mounted charge relay does not cut out, can make corresponding operation, and then the fault of avoiding not closing due to vehicle-mounted charge relay in lower electric process and causing, even personal casualty, improves reliability and the safety of system.
Step S51 comprises:
Step S511: detect ignition lock and whether be in ON position, if ignition lock is not in ON position, performs step S5121;
Step S5121: send the order of closing electric pressure converter;
Step S513: detect electric pressure converter and whether close, if electric pressure converter is closed, performs step S5141;
Step S5141: send and close main positive relay, main negative relay order.
Increase the power consumption of whole system because electric pressure converter is not related to close, increase the detection of ignition lock and electric pressure converter, the needs of chaufeur to Full Vehicle System can be understood, and then make corresponding operation, save the energy of vehicle, improve the safety of system.
Step S511 also comprises: if ignition lock is in ON position, performs step S5122;
Step S5122: control car load and enter low-pressure system awakening mode, perform step S8.
Because ignition lock is in ON position, illustrating that chaufeur has the demand of car load low-voltage power supply of allowing, is now that car load is powered by lead-acid battery, if now close electric pressure converter, cut off the charging path of lead-acid battery, easily caused lead-acid battery feed, finally cause lead-acid battery to damage.This process can improve the safety of whole lead-acid battery, extends its service life.
Step S5121 also comprises: from electric pressure converter order is closed in transmission, recorded for the second time;
Step S513 also comprises: if electric pressure converter is not closed, and performs step S51421;
Step S51421: whether the second time of detecting is greater than the second preset value, if the second time was not more than the second preset value, returns and performs step S513; If the second time was greater than the second preset value, perform step S51422;
Step S51422: send voltage converter and close time out fault, perform step S8.
This process, when electric pressure converter is not closed, can make corresponding operation, and then the fault of avoiding not closing due to electric pressure converter in lower electric process and causing, even personal casualty, improves reliability and the safety of system.
Step S5141 also comprises: from transmission disconnects main positive relay, main negative relay order, recorded for the 3rd time;
Step S6 also comprises: if main positive relay has one not disconnect with main negative relay, perform step S721;
Step S721: whether the 3rd time of detection is greater than the 3rd preset value, if the 3rd time was not more than the but preset value, returns and performs step S6; If the 3rd time was greater than the 3rd preset value, perform step S922;
Step S922: the information sending main positive relay and/or main negative relay disconnection time out fault, proceeds to step S8.
This process is not when main positive relay and/or main negative relay are closed, corresponding operation can be made, and then avoid due to the fault that main positive relay or main negative relay are not closed and caused in lower electric process, even personal casualty, improves reliability and the safety of system.
Also comprise between step S71 and step S8:
Step S81: the rechargeable energy value that storage battery system sends.
This process can be the electricity of subsequent control raising battery, thus prevents from causing electricity too low owing to excessively using, and affects the work of car load.
Although the present invention is described in conjunction with above embodiment, but the present invention is not limited to above-described embodiment, and only by the restriction of claim, those of ordinary skill in the art can easily modify to it and change, but do not leave essential idea of the present invention and scope.
Claims (10)
1. a vehicle-mounted charge pattern ending phase control method, is characterized in that, described method comprises:
Step S1: enter electric current journey under vehicle-mounted charge;
Step S2: detect charging power up whether et out of order, if the non-et out of order of described charging power up, perform step S31;
Step S31: send and disconnect the order of vehicle-mounted charge relay;
Step S4: detect described vehicle-mounted charge relay and whether disconnect, if disconnect, performs step S51;
Step S51: send and disconnect main positive relay, main negative relay order;
Step S6: detect the positive relay of described master, whether described master bear relay and disconnect, if the two all disconnects, performs step S71;
Step S71: electricity success under vehicle-mounted charge;
Step S8: terminate.
2. vehicle-mounted charge pattern ending phase control method according to claim 1, it is characterized in that, described step S2 also comprises: if described charging power up et out of order, performs step S32;
Step S32: send diagnostic code, close described vehicle-mounted charge relay, the positive relay of described master and described master and bear relay, performs step S8.
3. vehicle-mounted charge pattern ending phase control method according to claim 1, it is characterized in that, described step S31 comprises:
Step S311: detect battery and whether be full of electricity, if described battery underfill is electric, performs step S3121;
Step S3121: detect charging gun and whether extract, if described charging gun is extracted, performs step S3131;
Step S3131: send and disconnect the order of described vehicle-mounted charge relay, performs step S4.
4. vehicle-mounted charge pattern ending phase control method according to claim 3, it is characterized in that, described step S311 also comprises: if described battery is full of electricity, performs step S3122;
Step S3122: send battery and be full of information, and cancel charging wake-up signal, perform step S3131.
5. vehicle-mounted charge pattern ending phase control method according to claim 3, it is characterized in that, step S3121 also comprises: if described charging gun is not extracted, and performs step S3132;
Step S3132: wait for that described charging gun is extracted, proceeds to step S3121 and performs.
6. vehicle-mounted charge pattern ending phase control method according to claim 3, it is characterized in that, described step S3131 also comprises: from transmission disconnects the order of vehicle-mounted charge relay, record the very first time;
Described step S4 also comprises: if described vehicle-mounted charge relay does not disconnect, and performs step S521;
Step S521: whether detect the described very first time is greater than the first preset value, if the described very first time is not more than described first preset value, returns and performs step S4; If the described very first time is greater than described first preset value, perform step S522;
Step S522: send the information that vehicle-mounted charge relay disconnects time out fault, proceed to step S8.
7. the vehicle-mounted charge pattern ending phase control method according to any one of claim 1-6, it is characterized in that, described step S51 comprises:
Step S511: detect ignition lock and whether be in ON position, if described ignition lock is not in ON position, performs step S5121;
Step S5121: send the order of closing electric pressure converter;
Step S513: detect described electric pressure converter and whether close, if described electric pressure converter is closed, performs step S5141;
Step S5141: send and close main positive relay, main negative relay order.
8. vehicle-mounted charge pattern ending phase control method according to claim 7, it is characterized in that, described step S511 also comprises: if described ignition lock is in ON position, performs step S5122;
Step S5122: control car load and enter low-pressure system awakening mode, perform step S8.
9. vehicle-mounted charge pattern ending phase control method according to claim 7, it is characterized in that, described step S5121 also comprises: from electric pressure converter order is closed in transmission, recorded for the second time;
Step S513 also comprises: if described electric pressure converter is not closed, and performs step S51421;
Step S51421: whether detect described second time is greater than the second preset value, if described second time is not more than described second preset value, returns and performs step S513; If described second time is greater than described second preset value, perform step S51422;
Step S51422: send voltage converter and close time out fault, perform step S8.
10. vehicle-mounted charge pattern ending phase control method according to claim 7, it is characterized in that, described step S5141 also comprises: from transmission disconnects the positive relay of described master, main negative relay order, recorded for the 3rd time;
Described step S6 also comprises: have one not disconnect if the positive relay of described master and described master bear relay, performs step S721;
Step S721: whether detect described 3rd time is greater than the 4th preset value, if described 3rd time is not more than described the but preset value, returns and performs step S6; If described 3rd time is greater than described 3rd preset value, perform step S722;
Step S722: the main positive relay of transmission and/or described master bear the information that relay disconnects time out fault, proceed to step S8.
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Cited By (1)
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| CN109278571A (en) * | 2018-08-13 | 2019-01-29 | 北京长城华冠汽车科技股份有限公司 | A kind of charge control method of electric car, battery charge controller and electric car |
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