CN111361444B - Pure electric vehicle charging fault diagnosis method and device - Google Patents
Pure electric vehicle charging fault diagnosis method and device Download PDFInfo
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- 238000001514 detection method Methods 0.000 description 13
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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
- B60L3/04—Cutting off the power supply under fault conditions
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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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- 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 the field of charging of pure electric vehicles, and provides a method and a device for diagnosing charging faults of a pure electric vehicle, which comprises the steps of obtaining battery charging state data, vehicle-mounted charger state data and charging pile state data; processing charging pile state data to compare with a first preset value, processing vehicle-mounted charger state data to compare with a second preset value, processing battery charging state data to compare with a third preset value, and displaying first abnormal fault information and/or second abnormal fault information and/or third abnormal fault information; and if the first abnormal fault information, the second abnormal fault information or the third abnormal fault information occurs, triggering and executing a cut-off emergency switch, and disconnecting the pure electric vehicle charging circuit. Through obtaining the comparison of state data and setting value and handling, suggestion abnormal fault information and cutting off emergency switch not only improve pure electric vehicles's the security of charging at home, can conveniently learn the fault location moreover, reduce unnecessary panic nature maloperation, reduce the risk of electrocuteeing.
Description
Technical Field
The invention relates to the field of charging of pure electric vehicles, in particular to a method and a device for diagnosing charging faults of a pure electric vehicle.
Background
Because pure electric vehicles not only make things convenient for the city to ride instead of walk, moreover every kilometer consumption low cost, more and more pure electric vehicles enter into the family, and pure electric vehicles charges at home, directly carries out single-phase alternating current through socket or simple and easy electric pile and charges usually, and is simple swift, so domestic type pure electric vehicles's the volume of possessing is more and more big.
For faults generated by household charging of the pure electric vehicle, CN105716876B discloses a fault detection device and a detection method for the pure electric vehicle, which comprise a hand brake detection assembly, a brake detection assembly, an R gear detection assembly, a D gear detection assembly and an accelerator detection assembly which are connected in parallel; the accelerator detection assembly comprises an accelerator adjuster and an accelerator pedal test switch, the accelerator adjuster is electrically connected with one end of the accelerator pedal test switch, and the other end of the accelerator pedal test switch is electrically connected with an accelerator signal output end; the gear detection assembly comprises a second control chip, an analog signal input conditioning circuit, a display and a memory, wherein the analog signal input conditioning circuit, the display and the memory are respectively and electrically connected with the second control chip; the gear detection assembly further comprises a gear controller and a gear simulator; the gear controller comprises a third control chip, and a hand brake adjusting knob, a brake adjusting knob, an R gear adjusting knob and a D gear adjusting knob which are respectively electrically connected with the third control chip; the third control chip is respectively and electrically connected with the second control chip, the gear simulator and the analog signal input conditioning circuit, and the analog signal input conditioning circuit is electrically connected with the gear simulator; and the second control chip is respectively and electrically connected with the hand brake detection assembly, the R gear detection assembly and the D gear detection assembly.
At present, the household charging operation process of the pure electric vehicle is carried out by non-professionals, the pure electric vehicle is directly connected to a power distribution network for charging, poor contact and overload occur, and misoperation recovery causes tripping for several times, so that panic misoperation and even electric shock are caused. The household charging of the pure electric vehicle is the most direct process when a consumer directly uses the products of the pure electric vehicle, the use efficiency and the customer satisfaction degree of the products are seriously influenced, and the manpower and material resources required to be input by after-sale technical support of a pure electric vehicle production enterprise are increased.
Disclosure of Invention
As the pure electric vehicle family charging process belongs to non-professional personnel and the pure electric vehicle is directly connected into the power distribution network for charging, long-term practice statistics shows that the proportion of technical support required when the pure electric vehicle family charging fails accounts for more than 50% of the total pure electric vehicle fault, and partial power utilization danger is caused.
In view of this, the present invention provides a method for diagnosing a charging fault of a pure electric vehicle, including:
acquiring battery charging state data of the pure electric vehicle, vehicle-mounted charger state data and charging pile state data;
processing the charging pile state data, comparing the charging pile state data with a first preset value, and judging the charging pile state data to be first abnormal fault information if the charging pile state data exceeds the first preset value;
processing the state data of the vehicle-mounted charger, comparing the state data with a second preset value, and judging the vehicle-mounted charger as second abnormal fault information if the state data exceeds the second preset value;
processing the comparison between the battery charging state data and a third preset value, and judging that the battery charging state data exceeds the third preset value as third abnormal fault information;
displaying the first abnormal fault information and/or the second abnormal fault information and/or the third abnormal fault information;
and if the first abnormal fault information, the second abnormal fault information or the third abnormal fault information occurs, triggering and executing a cut-off emergency switch, and disconnecting the charging loop of the pure electric vehicle.
Preferably, the charging pile state data includes an input voltage, an input current, an output voltage, and an output current, and if the input voltage or the input current or the output voltage or the output current exceeds the first predetermined value, first abnormal fault information is output;
if the input voltage or the input current exceeds the first preset value, outputting power supply loop fault information; and if the input voltage and the input current are within the first preset value interval, and the output voltage or the output current is not within the first preset value interval, outputting charging pile fault information and generating a trigger signal to execute cutting off an emergency switch.
Preferably, the vehicle-mounted charger state data includes an input voltage, an input current, an output voltage, and an output current, and if the input voltage or the input current or the output voltage or the output current exceeds the second predetermined value, second abnormal fault information is output.
Preferably, if the input voltage or the input current exceeds the second predetermined value, charging loop fault information is output; and if the input voltage and the input current are within the second preset value interval, and the output voltage or the output current is not within the second preset value interval, outputting fault information of the vehicle-mounted charger and generating a trigger signal to execute cutting off an emergency switch.
Preferably, the battery charging state data of the pure electric vehicle comprises input voltage, input current, battery voltage, battery capacity and battery temperature, and if the input voltage or the input current or the battery temperature or the battery capacity exceeds the third preset value, third abnormal fault information is output;
if the input voltage or the input current exceeds the third preset value, outputting charging loop fault information; and if the input voltage and the input current are within the third preset value interval, and the battery voltage, the battery capacity or the battery temperature exceeds the third preset value interval, outputting power battery fault information and generating a trigger signal to execute cutting off an emergency switch.
Preferably, the second abnormal fault information, and the third abnormal fault information are both array data, and include fault location information.
Preferably, the priority of the comparison processing of the charging pile state data and the first preset value is greater than the priority of the comparison processing of the vehicle-mounted charger state data and the second preset value, and the priority of the comparison processing of the vehicle-mounted charger state data and the second preset value is greater than the priority of the comparison processing of the battery charging state data and the third preset value.
The invention also provides an executing device of the pure electric vehicle charging fault diagnosis method, and the device comprises the following steps:
the acquisition module is used for acquiring the charging state data of the battery of the pure electric vehicle, the state data of the vehicle-mounted charger and the state data of the charging pile;
a processing module including a first processing module, a second processing module and a third processing module,
the first processing module is used for processing the charging pile state data and comparing the charging pile state data with a first preset value, and if the charging pile state data exceeds the first preset value, the charging pile state data is judged to be first abnormal fault information;
the second processing module is used for processing the state data of the vehicle-mounted charger and comparing the state data with a second preset value, and if the state data exceeds the second preset value, the second processing module judges that the state data is second abnormal fault information;
the third processing module is used for processing the comparison between the battery charging state data and the first preset value, and judging that the battery charging state data exceeds a third preset value to be third abnormal fault information;
the display module is used for displaying the first abnormal fault information and/or the second abnormal fault information and/or the third abnormal fault information;
and the execution module is used for triggering execution of a cut-off emergency switch and disconnecting the pure electric vehicle charging circuit if the first abnormal fault information, the second abnormal fault information or the third abnormal fault information occurs.
Preferably, the first processing module processing priority is greater than the second processing module priority, and the second processing module priority is greater than the third processing module priority.
According to another aspect of the embodiments of the present invention, there is provided a storage medium, the storage medium including a stored program, wherein when the program runs, a device in which the storage medium is located is controlled to execute the above method.
According to the charging fault diagnosis method for the pure electric vehicle, the state data of the pure electric vehicle battery, the vehicle-mounted charger and the charging pile are obtained, the state data is compared with the set value, abnormal fault information is prompted, the emergency switch is switched off, the charging safety of the pure electric vehicle at home is improved, the position of the fault can be conveniently obtained, unnecessary panic misoperation is reduced, and the electric shock risk is further reduced.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a flowchart of a pure electric vehicle charging fault diagnosis method according to an embodiment of the present invention;
fig. 2 is a device structure diagram for executing a pure electric vehicle charging fault diagnosis method according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," "third," "fourth," and the like in the description and in the claims of the invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The charging operation process of the pure electric vehicle family is carried out by non-professionals, the pure electric vehicle family is directly connected to a power distribution network for charging, poor contact and overload occur, and misoperation recovery causes tripping for several times, so that the problems of panic misoperation and even electric shock are solved. The invention provides a pure electric vehicle charging fault diagnosis method, as shown in fig. 1, a flow chart of the pure electric vehicle charging fault diagnosis method of an embodiment of the invention is provided, and the pure electric vehicle charging fault diagnosis method comprises the following steps:
step S1, acquiring battery charging state data, vehicle-mounted charger state data and charging pile state data of the pure electric vehicle;
step S2, processing the charging pile state data to compare with a first preset value, and judging the charging pile state data to be first abnormal fault information if the charging pile state data exceeds the first preset value;
step S3, comparing the state data of the vehicle-mounted charger with a second preset value, and judging the vehicle-mounted charger as second abnormal fault information if the vehicle-mounted charger state data exceeds the second preset value;
step S4, comparing the charging state data with the third preset value, and judging as the third abnormal fault information if the third preset value is exceeded;
step S5 of displaying the first abnormal fault information and/or the second abnormal fault information and/or the third abnormal fault information;
and step S6, if the first abnormal fault information, the second abnormal fault information or the third abnormal fault information occurs, triggering and executing a cut-off emergency switch, and disconnecting the pure electric vehicle charging circuit.
Through the state data who obtains pure electric vehicles battery, on-vehicle machine that charges, fill electric pile, carry out comparison processing with state data and setting value to the unusual fault information of suggestion, and cut off emergency switch not only improves the security that pure electric vehicles charges at home, can be comparatively convenient moreover learn the trouble position, reduce unnecessary panic maloperation, and then reduce the risk of electrocuteeing.
The processing sequence of descending the priority is performed among the steps S2, S3, and S4, and the step S2 preferentially determines whether the charging pile state data is within the first predetermined value range, and if not, generates abnormal failure information and position information of the occurrence of the abnormal failure, and then the steps S3 and S4.
In order to better determine the position of the fault and accurately judge, under a more preferable condition of the invention, the charging pile state data comprises input voltage, input current, output voltage and output current, and if the input voltage or the input current or the output voltage or the output current exceeds the first preset value, first abnormal fault information is output;
if the input voltage or the input current exceeds the first preset value, outputting power supply loop fault information; and if the input voltage and the input current are within the first preset value interval, and the output voltage or the output current is not within the first preset value interval, outputting charging pile fault information and generating a trigger signal to execute cutting off an emergency switch.
For example, when the input voltage, the input current, the output voltage and the output current of the charging pile state data are acquired as [220V, 10A, 220V, 9.8A ], the first preset value is [220V ± 10V, 8A-12A, 220V ± 3V, 8A-12A ], it is determined that the charging pile is normally operated, and the steps S3 and S4 are continuously executed; when the input voltage or the input current of the state data of the charging pile is not within the first preset value interval, outputting the fault information of the power supply line, and generating a trigger signal to execute the cutting off of an emergency switch; and when the input voltage and the input current of the state data of the charging pile are acquired to be within the first preset value interval, judging that the fault information of the charging pile and the triggering signal are generated to execute the cut-off of the emergency switch if the output voltage or the output current is not within the first preset value interval.
In order to better locate a fault point and timely and quickly reflect fault point information, under the preferable condition of the invention, the state data of the vehicle-mounted charger comprises input voltage, input current, output voltage and output current, and second abnormal fault information is output when the input voltage or the input current or the output voltage or the output current exceeds a second preset value.
In order to better position a fault point and timely and quickly reflect fault point information, under the preferable condition of the invention, if the input voltage or the input current exceeds the second preset value, the fault information of the charging loop is output; and if the input voltage and the input current are within the second preset value interval, and the output voltage or the output current is not within the second preset value interval, outputting fault information of the vehicle-mounted charger and generating a trigger signal to execute cutting off an emergency switch.
For example, when the state data input voltage, the input current, the output voltage and the output current of the vehicle-mounted charger are acquired as [220V, 10A, 400V and 5.4A ], the second preset value is [220V ± 3V, 8A-12A, 400V ± 5V and 0A-6A ], it is determined that the vehicle-mounted charger is working normally, and the step S4 is continuously executed; when the input voltage or the input current of the vehicle-mounted charger is not within the second preset value interval, outputting fault information of a power supply line, positioning a fault point between the charging pile and the vehicle-mounted charger, and generating a trigger signal to execute cutting off an emergency switch; and when the acquired state data of the vehicle-mounted charger is that the input voltage and the input current are within the second preset value interval, judging that the fault information of the vehicle-mounted charger and the generated trigger signal execute the cut-off of the emergency switch if the output voltage or the output current is not within the second preset value interval.
In order to better position a fault point and timely and quickly reflect fault point information, under the preferable condition of the invention, the battery charging state data of the pure electric vehicle comprises input voltage, input current, battery voltage, battery capacity and battery temperature, and third abnormal fault information is output when the input voltage or the input current or the battery temperature or the battery capacity exceeds a third preset value;
if the input voltage or the input current exceeds the third preset value, outputting charging loop fault information; and if the input voltage and the input current are within the third preset value interval, and the battery voltage, the battery capacity or the battery temperature exceeds the third preset value interval, outputting power battery fault information and generating a trigger signal to execute cutting off an emergency switch.
For example, in step S4, when the battery state-of-charge data of the acquired input voltage, input current, battery voltage, battery capacity, battery temperature is [400V, 10A, 401V, 75%, 40 ℃ ], and the third predetermined value is [400V ± 40V, 6A-12A, 388V-410V, 30% to 100%, 10 ℃ to 70 ℃ ], it is determined that there is no abnormal failure data; when the battery voltage or the battery capacity or the battery temperature of the pure electric vehicle battery is detected to exceed the third preset value interval, judging and positioning the power battery fault; and when the battery voltage, the battery capacity and the battery temperature of the pure electric vehicle battery are detected to be in the third preset value interval, and the input voltage or the input current is detected not to be in the third set value range, judging that the charging loop has a fault, namely positioning the charging loop of which the fault point is before the pure electric vehicle battery.
In order to better calculate and computer store the fault information, in a preferred case of the present invention, the second abnormal fault information, and the third abnormal fault information are both array data, including fault location information.
For example, the fault location information includes nodes for graphically presenting charging piles, vehicle-mounted chargers, power batteries, and positions of connecting wires with each other.
In order to better and effectively process the generated state data quickly, in a preferred case of the invention, the priority of the comparison processing of the charging pile state data and the first preset value is higher than the priority of the comparison processing of the vehicle-mounted charger state data and the second preset value, and the priority of the comparison processing of the vehicle-mounted charger state data and the second preset value is higher than the priority of the comparison processing of the battery charging state data and the third preset value.
In order to better execute the process of the pure electric vehicle charging fault diagnosis method, as shown in fig. 2, the present invention further provides an apparatus for executing the pure electric vehicle charging fault diagnosis method, where the apparatus includes:
the acquisition module is used for acquiring the charging state data of the battery of the pure electric vehicle, the state data of the vehicle-mounted charger and/or the state data of the charging pile;
a processing module including a first processing module, a second processing module and a third processing module,
the first processing module is used for processing the charging pile state data and comparing the charging pile state data with a first preset value, and if the charging pile state data exceeds the first preset value, the charging pile state data is judged to be first abnormal fault information;
the second processing module is used for processing the state data of the vehicle-mounted charger and comparing the state data with a second preset value, and if the state data exceeds the second preset value, the second processing module judges that the state data is second abnormal fault information;
the third processing module is used for processing the comparison between the battery charging state data and the first preset value, and judging that the battery charging state data exceeds a third preset value to be third abnormal fault information;
the display module is used for displaying the first abnormal fault information and/or the second abnormal fault information and/or the third abnormal fault information;
and the execution module is used for triggering execution of a cut-off emergency switch and disconnecting the pure electric vehicle charging circuit if the first abnormal fault information, the second abnormal fault information or the third abnormal fault information occurs.
The device is through acquireing pure electric vehicles battery, on-vehicle machine that charges, fill electric pile's state data, carries out comparison processing with state data and setting value to the suggestion abnormal fault information, and cut off emergency switch, not only improve pure electric vehicles charging's security at home, the position of knowing the trouble that moreover can be comparatively convenient reduces unnecessary panic nature maloperation, and then reduces the risk of electrocuteeing.
For better and efficient handling of the priority order of the different data, the first processing module processing priority is greater than the second processing module priority, which is greater than the third processing module priority.
The embodiment of the invention provides a storage medium, which comprises a stored program, wherein when the program runs, a device where the storage medium is located is controlled to execute the method.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus can be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a mobile terminal, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The pure electric vehicle charging fault diagnosis method is characterized by comprising the following steps:
acquiring battery charging state data of the pure electric vehicle, vehicle-mounted charger state data and charging pile state data;
processing the charging pile state data, comparing the charging pile state data with a first preset value, and judging the charging pile state data to be first abnormal fault information if the charging pile state data exceeds the first preset value;
processing the state data of the vehicle-mounted charger, comparing the state data with a second preset value, and judging the vehicle-mounted charger as second abnormal fault information if the state data exceeds the second preset value;
processing the comparison between the battery charging state data and a third preset value, and judging that the battery charging state data exceeds the third preset value as third abnormal fault information;
displaying the first abnormal fault information and/or the second abnormal fault information and/or the third abnormal fault information;
if the first abnormal fault information, the second abnormal fault information or the third abnormal fault information occurs, triggering and executing a cut-off emergency switch, and disconnecting a charging loop of the pure electric vehicle;
the charging pile state data comprise input voltage, input current, output voltage and output current, and first abnormal fault information is output if the input voltage or the input current or the output voltage or the output current exceeds the first preset value;
if the input voltage or the input current exceeds the first preset value, outputting power supply loop fault information; if the input voltage and the input current are within the first preset value interval, and the output voltage or the output current is not within the first preset value interval, outputting charging pile fault information and generating a trigger signal to execute cutting off an emergency switch;
the vehicle-mounted charger state data comprise input voltage, input current, output voltage and output current, and second abnormal fault information is output if the input voltage or the input current or the output voltage or the output current exceeds a second preset value;
if the input voltage or the input current exceeds the second preset value, outputting charging loop fault information; if the input voltage and the input current are within the second preset value interval, and the output voltage or the output current is not within the second preset value interval, outputting fault information of the vehicle-mounted charger and generating a trigger signal to execute cutting off an emergency switch;
the battery charging state data of the pure electric vehicle comprises input voltage, input current, battery voltage, battery capacity and battery temperature, and third abnormal fault information is output when the input voltage or the input current or the battery temperature or the battery capacity exceeds a third preset value;
if the input voltage or the input current exceeds the third preset value, outputting charging loop fault information; if the input voltage and the input current are within the third preset value interval, and the battery voltage, the battery capacity or the battery temperature exceeds the third preset value interval, outputting power battery fault information and generating a trigger signal to execute cutting off an emergency switch;
the first abnormal fault information, the second abnormal fault information and the third abnormal fault information are array data and comprise fault positioning information;
the priority of the charging pile state data compared with the first preset value is greater than that of the vehicle-mounted charger state data compared with the second preset value, and the priority of the vehicle-mounted charger state data compared with the second preset value is greater than that of the battery charging state data compared with the third preset value.
2. An apparatus, characterized in that the apparatus comprises:
the acquisition module is used for acquiring the charging state data of the battery of the pure electric vehicle, the state data of the vehicle-mounted charger and the state data of the charging pile;
a processing module including a first processing module, a second processing module and a third processing module,
the first processing module is used for processing the charging pile state data and comparing the charging pile state data with a first preset value, and if the charging pile state data exceeds the first preset value, the charging pile state data is judged to be first abnormal fault information;
the second processing module is used for processing the state data of the vehicle-mounted charger and comparing the state data with a second preset value, and if the state data exceeds the second preset value, the second processing module judges that the state data is second abnormal fault information;
the third processing module is used for processing the comparison between the battery charging state data and the first preset value, and judging that the battery charging state data exceeds a third preset value to be third abnormal fault information;
the display module is used for displaying the first abnormal fault information and/or the second abnormal fault information and/or the third abnormal fault information;
the execution module is used for triggering execution of a cut-off emergency switch and disconnecting the pure electric vehicle charging circuit if the first abnormal fault information, the second abnormal fault information or the third abnormal fault information occurs;
the first processing module processing priority is greater than the second processing module priority, and the second processing module priority is greater than the third processing module priority.
3. A storage medium, characterized in that the storage medium includes a stored program, wherein when the program runs, a device in which the storage medium is located is controlled to execute the pure electric vehicle charging fault diagnosis method according to claim 1.
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| CN112389352A (en) * | 2020-11-17 | 2021-02-23 | 华人运通(江苏)技术有限公司 | Finished automobile static current management system and method |
| CN114281052A (en) * | 2021-12-30 | 2022-04-05 | 中国兵器装备集团自动化研究所有限公司 | Mechanical equipment running state monitoring device, system and method |
| CN114518742A (en) * | 2022-02-21 | 2022-05-20 | 中国第一汽车股份有限公司 | Method and system for determining charging fault of electric car, electronic terminal and storage medium |
| CN115275396B (en) * | 2022-08-15 | 2024-09-27 | 珠海冠宇电源有限公司 | Battery protection method and battery pack |
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