CN114103709A - Electric vehicle alternating current charging control method - Google Patents
Electric vehicle alternating current charging control method Download PDFInfo
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- CN114103709A CN114103709A CN202111656590.XA CN202111656590A CN114103709A CN 114103709 A CN114103709 A CN 114103709A CN 202111656590 A CN202111656590 A CN 202111656590A CN 114103709 A CN114103709 A CN 114103709A
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- vehicle
- control device
- charging
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- vehicle control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
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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
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T90/12—Electric charging stations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to an alternating current charging control method for an electric vehicle, which comprises the following steps: 1) when the charging process is abnormal, the vehicle control device controls to stop charging, and the whole vehicle system enters dormancy; 2) a voltage monitoring unit integrated in the vehicle control device monitors whether the CP terminal is recovered to be normal or not; if the normal state is recovered, the step 4) is carried out; otherwise, turning to the step 3); 3) the vehicle control device keeps sleeping and then the step 2) is carried out; 4) the voltage monitoring unit wakes up the vehicle control device; 5) the vehicle control device detects whether the charging plug is normally connected; if normal connection is carried out, the step 7) is carried out; otherwise, turning to step 6); 6) the vehicle control device enters the sleep mode and the step 2) is carried out; 7) the vehicle control device wakes up the whole vehicle system; 8) detecting whether an input undervoltage fault exists by the vehicle-mounted charger; if no input undervoltage exists, the step 9) is carried out; otherwise, turning to the step 1); 9) and the whole vehicle system enters a charging working state. The electric vehicle can continue to be automatically charged after abnormal recovery, and is safer.
Description
Technical Field
The invention belongs to the technical field of electric automobiles, and particularly relates to an alternating current charging control method for an electric automobile.
Background
At present, the alternating current charging of the electric vehicle is mostly based on national standard GB18487.1-2015, and the alternating current charging time is long. When the electric vehicle charger is used, a user often adopts a mode of charging the electric vehicle at night or in a concentrated time. When the alternating current charging mode is adopted, some power supply abnormality occurs in the charging process, such as power supply after short power failure or recovery after charging gun failure, and the like, the electric vehicle cannot continue to be charged without human intervention. When a customer needs to use the vehicle, the power of the vehicle is insufficient or the power is fed, so that the customer experience is influenced. The prior art, such as CN 113437785A, CN 106004507A, is involved.
In the prior art, two awakening sources are needed in the execution process, the first awakening source is high-voltage input awakening and is low-voltage awakening, and the second awakening source is low-voltage CP awakening, so that high-voltage safety risk exists.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide another electric vehicle alternating current charging control method, which avoids the problems that the electric vehicle cannot be automatically continuously charged after power supply is abnormal and recovered without human intervention, and avoids high-voltage safety risks.
In order to solve the technical problems, the invention adopts the following technical scheme:
an electric vehicle alternating current charging control method comprises the following steps:
1) when the power supply of the vehicle is abnormal in the alternating current charging process, the vehicle control device controls the vehicle to stop charging and controls the whole vehicle system to enter a dormant state;
2) a voltage monitoring unit integrated in the vehicle control device monitors whether the CP end of the vehicle charging socket is recovered to be normal or not; if the normal state is recovered, the step 4) is carried out; if not, turning to the step 3);
3) the vehicle control device keeps a dormant state and then goes to step 2);
4) the voltage monitoring unit wakes up the vehicle control device;
5) the vehicle control device detects whether a vehicle charging plug is normally connected; if the connection is normal, the step 7) is carried out; if the connection is not normal, the step 6) is carried out;
6) the vehicle control device enters a dormant state and then goes to step 2);
7) the vehicle control device wakes up the whole vehicle system to enter a charging preparation state;
8) detecting whether an input undervoltage fault exists by the vehicle-mounted charger; if no input undervoltage fault exists, the step 9) is carried out; if an input undervoltage fault exists, turning to the step 1);
9) the whole vehicle system enters a charging working state; if the power supply is abnormal, the step 1) is carried out; otherwise, the charging is completed.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the alternating current charging control method for the electric vehicle, on the basis that the hardware cost is not increased, the problem that the electric vehicle cannot be automatically charged continuously after an external abnormal event is recovered in the prior art can be solved, and the charging experience of a customer is improved; and the charging modes 1, 2 and 3 in the national standard are compatible.
2. The alternating current charging control method for the electric vehicle is simple in control mode, the high voltage is awakened by the low-voltage CP, the potential risks of vehicle system faults, a battery system and high-voltage electricity can be detected in advance, and the high-voltage safety risk can be avoided as far as possible.
Drawings
Fig. 1 is a control logic diagram of an ac charging control method for an electric vehicle according to an embodiment.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Referring to fig. 1, an ac charging control method for an electric vehicle includes the following steps:
s010: the vehicle is normally charged in an alternating current mode in a charging working state;
s020: when the power supply of the vehicle is abnormal in the alternating current charging process, the vehicle control device controls the vehicle to stop charging and controls the whole vehicle system to enter a dormant state;
s030: a voltage monitoring unit integrated in the vehicle control device monitors whether the CP end of the vehicle charging socket is recovered to be normal or not; if the normal state is recovered, go to step S040; if the vehicle is not recovered to normal, the vehicle control device keeps the dormant state, or the step is repeated;
s040: the voltage monitoring unit wakes up the vehicle control device; the awakening mode can control and awaken the vehicle control device by detecting the voltage and the jumping edge state of the CP signal PWM;
s050: the vehicle control device detects whether the charging gun is normally connected; if the connection is normal, go to step S060; if the connection is not normal, the vehicle control device enters the dormant state again, the whole vehicle system keeps the dormant state, or the vehicle control device enters the dormant state again, and the step S030 is carried out;
s060: the vehicle control device wakes up the whole vehicle system to enter a charging preparation state; the vehicle control device CAN wake up the whole vehicle system through a hard wire or a CAN bus and control the whole vehicle system to enter a charging preparation state;
s070: detecting whether an input undervoltage fault exists by the vehicle-mounted charger; if no input undervoltage fault exists, the step S080 is carried out; if the input undervoltage fault exists, the step S020 is carried out;
s080: the vehicle control device controls the whole vehicle system to enter a charging working state; if the power supply is abnormal, the step S020 is carried out; otherwise, the charging is completed.
When the vehicle charging socket is implemented, the voltage monitoring unit can work when the vehicle control device is in a dormant state, and the voltage input end of the voltage monitoring unit is connected with the CP end of the vehicle charging socket and can monitor a level signal at the CP end of the vehicle charging socket. During implementation, the vehicle-mounted charger can also integrate a voltage monitoring unit for detecting the alternating current power supply voltage at the input end of the vehicle-mounted charger.
According to the alternating current charging control method for the electric vehicle, on the basis that the hardware cost is not increased, the problem that the electric vehicle cannot be automatically charged continuously after an external abnormal event is recovered in the prior art can be solved, and the charging experience of a customer is improved; and is compatible with charging modes 1, 2 and 3 in national standards. According to the alternating current charging control method for the electric vehicle, the high voltage is awakened by the low voltage CP, so that the high voltage safety risk can be avoided as much as possible.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (1)
1. An electric vehicle alternating current charging control method is characterized in that: the method comprises the following steps:
1) when the power supply of the vehicle is abnormal in the alternating current charging process, the vehicle control device controls the vehicle to stop charging and controls the whole vehicle system to enter a dormant state;
2) a voltage monitoring unit integrated in the vehicle control device monitors whether the CP end of the vehicle charging socket is recovered to be normal or not; if the normal state is recovered, the step 4) is carried out; if not, turning to the step 3);
3) the vehicle control device keeps a dormant state and then goes to step 2);
4) the voltage monitoring unit wakes up the vehicle control device;
5) the vehicle control device detects whether a vehicle charging plug is normally connected; if the connection is normal, the step 7) is carried out; if the connection is not normal, the step 6) is carried out;
6) the vehicle control device enters a dormant state and then goes to step 2);
7) the vehicle control device wakes up the whole vehicle system to enter a charging preparation state;
8) detecting whether an input undervoltage fault exists by the vehicle-mounted charger; if no input undervoltage fault exists, the step 9) is carried out; if an input undervoltage fault exists, turning to the step 1);
9) the whole vehicle system enters a charging working state; if the power supply is abnormal, the step 1) is carried out; otherwise, the charging is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111656590.XA CN114103709A (en) | 2021-12-31 | 2021-12-31 | Electric vehicle alternating current charging control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111656590.XA CN114103709A (en) | 2021-12-31 | 2021-12-31 | Electric vehicle alternating current charging control method |
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| Publication Number | Publication Date |
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| CN114103709A true CN114103709A (en) | 2022-03-01 |
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| CN202111656590.XA Pending CN114103709A (en) | 2021-12-31 | 2021-12-31 | Electric vehicle alternating current charging control method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011091878A (en) * | 2009-10-20 | 2011-05-06 | Fujitsu Ten Ltd | Controller and control method for plug-in charged vehicle |
| CN104052092A (en) * | 2013-03-15 | 2014-09-17 | 广州汽车集团股份有限公司 | Charging system for vehicle-mounted power battery, and charging method for vehicle-mounted power battery |
| CN106004507A (en) * | 2016-07-13 | 2016-10-12 | 中国第汽车股份有限公司 | Method for realizing automatic recovery of charging of electric automobile through voltage monitoring |
| WO2018126634A1 (en) * | 2017-01-05 | 2018-07-12 | 宁德时代新能源科技股份有限公司 | Detection method and device of charging switch of electric vehicle |
| CN110745025A (en) * | 2019-10-16 | 2020-02-04 | 广汽乘用车有限公司 | Charging fault processing method for electric automobile |
| CN112428841A (en) * | 2020-12-04 | 2021-03-02 | 安徽江淮汽车集团股份有限公司 | Vehicle-mounted charging system and method |
| CN112572176A (en) * | 2020-12-15 | 2021-03-30 | 嘉兴云驰智能科技有限公司 | Control method for automatic restarting charging of vehicle-mounted charger |
-
2021
- 2021-12-31 CN CN202111656590.XA patent/CN114103709A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011091878A (en) * | 2009-10-20 | 2011-05-06 | Fujitsu Ten Ltd | Controller and control method for plug-in charged vehicle |
| CN104052092A (en) * | 2013-03-15 | 2014-09-17 | 广州汽车集团股份有限公司 | Charging system for vehicle-mounted power battery, and charging method for vehicle-mounted power battery |
| CN106004507A (en) * | 2016-07-13 | 2016-10-12 | 中国第汽车股份有限公司 | Method for realizing automatic recovery of charging of electric automobile through voltage monitoring |
| WO2018126634A1 (en) * | 2017-01-05 | 2018-07-12 | 宁德时代新能源科技股份有限公司 | Detection method and device of charging switch of electric vehicle |
| CN110745025A (en) * | 2019-10-16 | 2020-02-04 | 广汽乘用车有限公司 | Charging fault processing method for electric automobile |
| CN112428841A (en) * | 2020-12-04 | 2021-03-02 | 安徽江淮汽车集团股份有限公司 | Vehicle-mounted charging system and method |
| CN112572176A (en) * | 2020-12-15 | 2021-03-30 | 嘉兴云驰智能科技有限公司 | Control method for automatic restarting charging of vehicle-mounted charger |
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