CN115092001A - Electric automobile charging assembly temperature monitoring system - Google Patents
Electric automobile charging assembly temperature monitoring system Download PDFInfo
- Publication number
- CN115092001A CN115092001A CN202210469397.3A CN202210469397A CN115092001A CN 115092001 A CN115092001 A CN 115092001A CN 202210469397 A CN202210469397 A CN 202210469397A CN 115092001 A CN115092001 A CN 115092001A
- Authority
- CN
- China
- Prior art keywords
- charging
- temperature
- charging assembly
- time
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/60—Navigation input
- B60L2240/66—Ambient conditions
- B60L2240/662—Temperature
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a temperature monitoring system for a charging assembly of an electric automobile, which can be used for estimating the time of the charging assembly reaching a preset working temperature threshold value and further obtaining the time required by charging a vehicle to the preset electric quantity by considering the influence of aging caused by temperature and the plugging times of the charging assembly on the heating rate of the charging assembly, compared with the mode of estimating the charging time directly according to the residual electric quantity and the charging efficiency in the traditional technology, and considering the condition that the charging assembly is disconnected from electric connection after the temperature of the charging assembly is too high, on one hand, the charging time can be accurately estimated, on the other hand, a good protection effect can be realized on the charging assembly, and the charging assembly is prevented from working in a high-temperature environment for a long time.
Description
Technical Field
The invention belongs to the technical field of intelligent control, and particularly relates to a temperature monitoring system for a charging assembly of an electric automobile.
Background
Pure electric vehicles and hybrid electric vehicles can be supplied with energy through storage batteries, and then the vehicles are driven to move through a motor, so that the pure electric vehicles and the hybrid electric vehicles are charged through charging piles to supplement electric energy, but in the long-term use process of the charging piles, along with the increase of the number of times of cyclic plugging and unplugging between charging guns and charging sockets on the vehicles, the contact resistance of a contact surface is increased, the heating value of a charging assembly is increased in the charging process, the deformation and even fire accidents of the charging assembly can be seriously caused, and the property of the citizens is damaged;
in the prior art, when an electric vehicle is charged, when a charging gun and a storage battery are connected, the charging time can be estimated according to the residual electric quantity and the charging power of the storage battery, but because the charging gun and a charging socket generate a large amount of heat in the long-time working process, if the power supply is not timely cut off for heat dissipation, the charging socket and the charging gun can be damaged, and the heat dissipation of the charging gun and the charging socket can occupy short time, the estimated charging time is inaccurate, and in order to solve the problems, the invention provides the following technical scheme.
Disclosure of Invention
The invention aims to provide a temperature monitoring system for an electric vehicle charging assembly, which solves the problem that in the prior art, when an electric vehicle is charged, charging is suspended due to overhigh temperature, so that the estimation of charging time is inaccurate.
The purpose of the invention can be realized by the following technical scheme:
electric automobile charges subassembly temperature monitoring system includes:
the temperature detection module is used for detecting the charging environment temperature of the electric automobile and the working temperature of the charging assembly;
the power storage monitoring module is used for monitoring the residual electric quantity information of the electric vehicle and the charging efficiency information of the power storage unit;
the charging counting module is used for monitoring and recording the plugging and unplugging times of the charging assembly;
the working method of the temperature monitoring system for the electric vehicle charging assembly comprises the following steps:
the method comprises the steps that firstly, a plurality of charging assemblies are arranged, the charging assemblies are equally divided into k groups, then k constant temperature environments are arranged, the temperature in the k constant temperature environments is set to be equal difference, and one group of charging assemblies is arranged in each constant temperature environment;
and calculating the relationship between the plugging times and the heating rate of a group of charging assemblies in each constant temperature environment, and storing the relationship in the controller module.
Secondly, setting an operating temperature threshold X2 of the charging assembly;
thirdly, when the charging gun is electrically connected with a charging socket on the electric automobile, the working temperature X of the charging assembly is obtained in real time through the temperature detection module, when the X is larger than or equal to X2, the controller module disconnects the charging gun from the charging socket, and when the real-time temperature of the charging assembly is reduced to the ambient temperature, the controller module controls the charging module to be electrified;
fourthly, after the charging gun is electrically connected with the charging socket, the power storage monitoring module reads the residual electric quantity information of the electric vehicle and the charging efficiency information of the power storage unit and transmits the residual electric quantity information and the charging efficiency information to the controller module, and the controller module calculates to obtain the predicted charging time t 2;
fifthly, detecting the charging environment temperature of the electric automobile through a temperature detection module, simultaneously recording and reading the plugging times of the charging assembly through a charging counting module, obtaining the time T1 of the charging assembly when the temperature of the charging assembly is raised to a working temperature threshold X2 according to the relation between the plugging times of the charging assembly and the temperature rise rate in each constant temperature environment obtained in the first step, and if T1 is larger than T2, normally charging the charging assembly until the power storage unit is fully charged or reaches the preset electric quantity;
if T1 is smaller than T2, acquiring the ambient temperature after the time of T1+ T2 through a weather forecast module, acquiring the time T3 of the charging assembly when the temperature of the charging assembly rises to the working temperature threshold X2 again according to the relation between the plugging times and the temperature rising rate of the charging assembly in the constant-temperature environment, and if T1+ T3 is larger than or equal to T2, predicting the charging time to be T1+ T2+ T4;
wherein T2 is the time required for the charging assembly to lower from the operating temperature threshold X2 to the ambient temperature after the weather forecast module acquires the time T1+ T2;
t4 satisfies T2-T1 ═ T4;
if T1+ T3 is less than T2, it is calculated as above until the actual charging time is greater than T2.
As a further scheme of the invention, a temperature rise rate threshold S1 of the charging assembly is set in the second step, when the temperature rise rate S of the charging assembly is acquired within the preset time t3 and is not less than S1, the controller module actively disconnects the electric connection between the charging gun and the charging socket, and simultaneously sends alarm information to the user terminal through the wireless transmission module.
As a further scheme of the invention, in the fifth step, the ambient temperature of the electric vehicle charging can be detected through the temperature detection module, the plugging and unplugging times of the charging assembly are recorded and read through the charging counting module, according to the relationship between the plugging and unplugging times of the charging assembly and the temperature rise rate in each constant temperature environment obtained in the first step, the time T1 when the charging assembly is heated to the working temperature threshold X2 is obtained by taking the current ambient temperature as a calculated value, then the temperature change in the future T1 time is obtained through the weather forecast module, then the average temperature value is obtained according to the temperature change in the future T1 time, and then the time T1 when the charging assembly is heated to the working temperature threshold X2 is obtained through calculation of the average temperature value.
As a further aspect of the present invention, the method for obtaining the average temperature value according to the temperature change in the future T1 time includes: acquiring temperature data at preset intervals according to the trend of the temperature along with the time within the future T1, and then calculating an average value by using the acquired temperature data to serve as a final result;
as a further scheme of the invention, in the fifth step, an operating temperature threshold value X1 which is greater than the operating temperature threshold value X2 is set, when T1 is less than T2, if the value of T2-T1 is less than or equal to T4, the charging is normally continued until the electric quantity of the electricity storage unit reaches a target value, wherein T4 is less than or equal to T5;
wherein t5 is the time for the charging assembly to warm up from the operating temperature threshold X2 to the operating temperature threshold X1 according to the current warm-up rate.
As a further aspect of the present invention, in the first step, the method for determining the relationship between the number of times of plugging and unplugging and the temperature rise rate of the charging assembly during charging specifically includes the following steps:
s1, collecting data in a constant temperature environment, enabling the charging sockets and the charging guns to correspond one to form a charging assembly, then powering on for t time, and then disconnecting, and recording the heating rate of the connection part of the charging sockets and the charging guns in the period;
s2, when the temperature of the socket to be charged and the temperature of the charging gun are equal to the ambient temperature, the socket to be charged and the charging gun are electrically connected again, the socket to be charged and the charging gun are disconnected after being electrified for t1 time, and the temperature rise rate of the connection position of the charging socket and the charging gun is recorded in the period;
s3, repeating the operation of the step S2 and recording data to obtain a group of heating rates Xi1, Xi2, and Xin corresponding to one charging assembly, wherein i is more than or equal to 1 and less than or equal to m, m is the number of charging assembly samples, and n is the plugging times;
s4, according to the formula
Calculating to obtain a heating rate average value Xpj corresponding to j times of plugging and unplugging, thereby obtaining a group of heating rate average value data Xp1, Xp2,.. and Xpn corresponding to the plugging and unplugging times, wherein j is more than or equal to 1 and less than or equal to n;
therefore, the relation between the plugging times of the charging assembly in each constant temperature environment and the heating rate is obtained.
The invention has the beneficial effects that:
(1) the influence of aging caused by temperature and the plugging times of the charging assembly on the heating rate of the charging assembly can be considered, so that the time for the charging assembly to reach the preset working temperature threshold is estimated, and the time for the vehicle to be charged to the preset electric quantity is further obtained;
(2) the temperature rise rate threshold is set, so that the problem that the contact position between the charging gun and the charging socket is excessively heated seriously due to the reasons of circuit damage, incomplete plugging and the like can be avoided, the electric connection is timely disconnected, and the loss is reduced;
the method can set an operating temperature threshold value X1 which is greater than an operating temperature threshold value X2, wherein X1 is greater than X2, when T1 is less than T2, if the value of T2-T1 is less than or equal to T4, charging is normally continued until the electric quantity of the electricity storage unit reaches a target value, wherein T4 is less than or equal to T5; t5 is the time for the charging assembly to heat up from the operating temperature threshold X2 to the operating temperature threshold X1 according to the current heating rate; the mode can avoid meaningless lengthening of the charging time, can finish charging once when the residual charging amount is less, and avoids repeated disconnection and connection of the storage battery and the power grid.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it should be apparent that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Electric automobile charges subassembly temperature monitoring system includes:
the temperature detection module is used for detecting the charging environment temperature of the electric automobile and the working temperature of the charging assembly;
the power storage monitoring module is used for monitoring the residual electric quantity information of the electric vehicle and the charging efficiency information of the power storage unit and transmitting the residual electric quantity information and the charging efficiency information to the controller module;
the charging counting module is used for monitoring and recording the plugging and unplugging times of the charging assembly;
the weather forecast module is used for acquiring environmental temperature information in a future period of time;
the working method of the temperature monitoring system for the electric vehicle charging assembly comprises the following steps:
the method comprises the steps that firstly, a plurality of charging assemblies are arranged, the charging assemblies are equally divided into k groups, then k constant temperature environments are arranged, the temperature in the k constant temperature environments is set to be equal difference, and one group of charging assemblies is arranged in each constant temperature environment;
calculating to obtain the relation between the plugging times and the heating rate of a group of charging assemblies in each constant temperature environment;
the charging assembly comprises a charging gun and a corresponding charging socket used on the electric automobile, the charging socket is connected with a storage battery, a power grid or other power utilization structures, and the output voltage and current of the charging gun correspond to the charging voltage and charging current of the automobile;
the method for acquiring the relationship between the plugging times and the heating rate of the charging assembly during charging specifically comprises the following steps:
s1, collecting data in a constant temperature environment, enabling the charging sockets and the charging guns to correspond one to form a charging assembly, then powering on for t time, and then disconnecting, and recording the heating rate of the connection part of the charging sockets and the charging guns in the period;
s2, when the temperature of the socket to be charged and the temperature of the charging gun are equal to the ambient temperature, the socket to be charged and the charging gun are electrically connected again, the socket to be charged and the charging gun are disconnected after being electrified for t1 time, and the temperature rise rate of the connection position of the charging socket and the charging gun is recorded in the period;
s3, repeating the operation of the step S2 and recording data to obtain a group of heating rates Xi1, Xi2, and Xin corresponding to one charging assembly, wherein i is more than or equal to 1 and less than or equal to m, m is the number of charging assembly samples, and n is the plugging times;
s4, according to the formula
Calculating to obtain Xpj average values of the heating rates corresponding to j times of plugging and unplugging, thereby obtaining a group of heating rate average value data Xp1, Xp2, so.., Xpn corresponding to the times of plugging and unplugging, wherein j is more than or equal to 1 and less than or equal to n;
therefore, the relation between the plugging times and the heating rate of the charging assembly in each constant temperature environment is obtained and stored in the controller module.
The step is used for acquiring the influence relation of temperature and the temperature rise rate of the charging assembly caused by repeated plugging and unplugging of the charging assembly, and because the stability of the step on the environment meets certain requirements, experimental data can be acquired by a producer;
secondly, setting a temperature rise rate threshold S1 of the charging assembly and a working temperature threshold X2 of the charging assembly, wherein X1 and X2 are set according to materials used by the charging assembly and the working mode of the charging assembly, so that the charging assembly is prevented from working for a long time in a high-temperature environment, and timely reacting when abnormal temperature rise occurs, and loss is reduced;
thirdly, when the charging gun is electrically connected with a charging socket on the electric automobile, the working temperature X of the charging assembly is obtained in real time through the temperature detection module, when the X is larger than or equal to X2, the controller module actively breaks the electric connection between the charging gun and the charging socket, then the real-time temperature of the charging assembly is obtained through the temperature detection module, and when the real-time temperature of the charging assembly is reduced to the environment temperature, the controller module controls the charging module to be electrified to realize the electric connection between the charging gun and the charging socket again;
when the temperature rise rate S of the charging assembly is obtained within the preset time t3 and is not less than S1, the controller module actively disconnects the electric connection between the charging gun and the charging socket, and meanwhile, alarm information is sent to the user terminal through the wireless transmission module;
the temperature rise rate threshold S1 is set, so that the problem that the contact position between the charging gun and the charging socket is excessively heated seriously due to the reasons of circuit damage, incomplete plugging and the like can be avoided, the electric connection is timely disconnected, and the loss is reduced;
fourthly, in the using process of a user, after the charging gun is electrically connected with a charging socket on the electric automobile, the electricity storage monitoring module reads the information of the residual electric quantity of the electric automobile and the charging efficiency information of the electricity storage unit and transmits the information to the controller module, and the controller module calculates the predicted charging time t2 according to the information of the residual electric quantity, the charging efficiency information and the target charging amount information;
fifthly, detecting the charging environment temperature of the electric automobile through a temperature detection module, simultaneously recording and reading the plugging times of the charging assembly through a charging counting module, obtaining the time T1 of the charging assembly when the temperature of the charging assembly is raised to a working temperature threshold X2 according to the relation between the plugging times of the charging assembly and the temperature rise rate in each constant temperature environment obtained in the first step, and if T1 is larger than T2, normally charging the charging assembly until the power storage unit is fully charged or reaches the preset electric quantity;
if T1 is smaller than T2, acquiring the ambient temperature after the time of T1+ T2 through a weather forecast module, acquiring the time T3 of the charging assembly when the temperature of the charging assembly rises to the working temperature threshold X2 again according to the relation between the plugging times and the temperature rising rate of the charging assembly in the constant-temperature environment, and if T1+ T3 is larger than or equal to T2, predicting the charging time to be T1+ T2+ T4;
wherein T2 is the time required for the charging assembly to decrease from the operating temperature threshold X2 to the ambient temperature after the weather forecast module acquires the time T1+ T2; t2 can be derived from the effect of ambient temperature on the cooling rate of the charging assembly;
t4 satisfies T2-T1 ═ T4;
if T1+ T3 is less than T2, it is calculated as above until the actual charging time is greater than T2.
In an embodiment of the invention, in order to improve the calculation accuracy, the temperature detection module may detect the ambient temperature of the electric vehicle charging, the charging counting module may record and read the plugging and unplugging times of the charging component, according to the relationship between the plugging and unplugging times and the heating rate of the charging component in each constant temperature environment obtained in the first step, the time T1 when the charging component is heated to the working temperature threshold X2 is obtained by using the current ambient temperature as a calculation value, the weather forecast module may obtain the temperature change within the future time T1, the average temperature value may be obtained according to the temperature change within the future time T1, and the time T1 when the charging component is heated to the working temperature threshold X2 is calculated by using the average temperature value.
The method for acquiring the average temperature value according to the temperature change in the future T1 time comprises the following steps: acquiring temperature data at preset intervals according to the trend of the temperature along with the time within the future T1, and then calculating an average value by using the acquired temperature data to serve as a final result;
the method can arrange the temperature in a period of time to calculate the average value of the temperature, and then calculate the average value, so that the accuracy of the calculation result can be improved, and the error caused by the temperature change in a period of time can be reduced;
the influence of aging caused by temperature and the plugging times of the charging assembly on the heating rate of the charging assembly can be considered, so that the time for the charging assembly to reach the preset working temperature threshold value X2 is estimated, and the time required by the vehicle to be charged to the preset electric quantity is further obtained;
in an embodiment of the present invention, in the fifth step, an operating temperature threshold X1 greater than the operating temperature threshold X2 may be set, where X1 is greater than X2, and when T1 is less than T2, if the value of T2-T1 is less than or equal to T4, the charging is normally continued until the electric quantity of the electric storage unit reaches the target value, where T4 should be less than or equal to T5;
wherein t5 is the time for the charging assembly to heat up from the operating temperature threshold X2 to the operating temperature threshold X1 according to the current heating rate;
the mode can avoid meaningless lengthening of the charging time, can finish charging once when the residual charging amount is less, and avoids repeated disconnection and connection of the storage battery and the power grid.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (6)
1. Electric automobile charges subassembly temperature monitoring system, its characterized in that includes:
the temperature detection module is used for detecting the charging environment temperature of the electric automobile and the working temperature of the charging assembly;
the power storage monitoring module is used for monitoring the residual electric quantity information of the electric vehicle and the charging efficiency information of the power storage unit;
the charging counting module is used for monitoring and recording the plugging and unplugging times of the charging assembly;
the working method of the temperature monitoring system for the electric vehicle charging assembly comprises the following steps:
the method comprises the steps that firstly, a plurality of charging assemblies are arranged, the charging assemblies are equally divided into k groups, then k constant temperature environments are arranged, the temperature in the k constant temperature environments is set to be equal difference, and one group of charging assemblies is arranged in each constant temperature environment;
and calculating the relationship between the plugging times and the heating rate of a group of charging assemblies in each constant temperature environment, and storing the relationship in the controller module.
Secondly, setting an operating temperature threshold X2 of the charging assembly;
thirdly, when the charging gun is electrically connected with a charging socket on the electric automobile, the working temperature X of the charging assembly is obtained in real time through the temperature detection module, when the X is larger than or equal to X2, the controller module disconnects the charging gun from the charging socket, and when the real-time temperature of the charging assembly is reduced to the ambient temperature, the controller module controls the charging module to be electrified;
fourthly, after the charging gun is electrically connected with the charging socket, the power storage monitoring module reads the residual electric quantity information of the electric vehicle and the charging efficiency information of the power storage unit and transmits the residual electric quantity information and the charging efficiency information to the controller module, and the controller module calculates to obtain the predicted charging time t 2;
fifthly, detecting the charging environment temperature of the electric automobile through a temperature detection module, simultaneously recording and reading the plugging times of the charging assembly through a charging counting module, obtaining the time T1 of the charging assembly when the temperature of the charging assembly is raised to a working temperature threshold X2 according to the relation between the plugging times of the charging assembly and the temperature rise rate in each constant temperature environment obtained in the first step, and if T1 is larger than T2, normally charging the charging assembly until the power storage unit is fully charged or reaches the preset electric quantity;
if T1 is smaller than T2, the ambient temperature after T1+ T2 time is obtained through a weather forecast module, time T3 when the temperature of the charging assembly rises to a working temperature threshold value X2 is obtained again according to the relation between the plugging times and the temperature rising rate of the charging assembly in the constant-temperature environment, and if T1+ T3 is larger than or equal to T2, the charging time is predicted to be T1+ T2+ T4;
wherein T2 is the time required for the charging assembly to lower from the operating temperature threshold X2 to the ambient temperature after the weather forecast module acquires the time T1+ T2;
t4 satisfies T2-T1 ═ T4;
if T1+ T3 is less than T2, then the calculation is performed as described above until the actual charge time is greater than T2.
2. The temperature monitoring system of the electric vehicle charging assembly according to claim 1, wherein a temperature rise rate threshold S1 of the charging assembly is set in the second step, and when the temperature rise rate S of the charging assembly is acquired within a preset time t3 and is greater than or equal to S1, the controller module actively disconnects the electric connection between the charging gun and the charging socket, and simultaneously sends alarm information to the user terminal through the wireless transmission module.
3. The system for monitoring the temperature of the charging assembly of the electric vehicle as claimed in claim 1, wherein in the fifth step, the temperature of the environment where the electric vehicle is charged can be detected by the temperature detection module, the number of times of plugging and unplugging the charging assembly is recorded and read by the charging counting module, the time T1 when the charging assembly is heated to the working temperature threshold X2 is obtained by using the current environment temperature as a calculation value according to the relationship between the number of times of plugging and unplugging the charging assembly and the heating rate obtained in the first step in each constant temperature environment, the temperature change in the future T1 time is obtained by the weather forecasting module, the average temperature value is obtained according to the temperature change in the future T1 time, and the time T1 when the charging assembly is heated to the working temperature threshold X2 is calculated by using the average temperature value.
4. The system for monitoring the temperature of the charging assembly of the electric vehicle according to claim 3, wherein the method for obtaining the average temperature value according to the temperature change in the future T1 time comprises the following steps: according to the trend of the temperature in the future T1 time along with the time, one temperature data is collected at preset time intervals, and then the average value is calculated by using the collected temperature data as the final result.
5. The temperature monitoring system of the charging assembly of the electric vehicle as claimed in claim 1, wherein in the fifth step, an operating temperature threshold value X1 greater than the operating temperature threshold value X2 is set, when T1 is less than T2, if the value of T2-T1 is less than or equal to T4, the charging is normally continued until the electric quantity of the electric storage unit reaches a target value, wherein T4 is less than or equal to T5;
wherein t5 is the time for the charging assembly to warm up from the operating temperature threshold X2 to the operating temperature threshold X1 according to the current warm-up rate.
6. The system for monitoring the temperature of the charging assembly of the electric vehicle according to claim 1, wherein the method for the relationship between the number of plugging/unplugging operations and the temperature rise rate of the charging assembly during the charging process in the first step specifically comprises the following steps:
s1, collecting data in a constant temperature environment, enabling the charging sockets and the charging guns to correspond one to form a charging assembly, then powering on for t time, and then disconnecting, and recording the heating rate of the connection part of the charging sockets and the charging guns in the period;
s2, when the temperature of the socket to be charged and the temperature of the charging gun are equal to the ambient temperature, the socket to be charged and the charging gun are electrically connected again, the socket to be charged and the charging gun are disconnected after being electrified for t1 time, and the temperature rise rate of the connection position of the charging socket and the charging gun is recorded in the period;
s3, repeating the operation of the step S2 and recording data to obtain a group of heating rates Xi1, Xi2, and Xin corresponding to one charging assembly, wherein i is more than or equal to 1 and less than or equal to m, m is the number of charging assembly samples, and n is the plugging times;
s4, according to the formula
Calculating to obtain a heating rate average value Xpj corresponding to j times of plugging and unplugging, thereby obtaining a group of heating rate average value data Xp1, Xp2,.. and Xpn corresponding to the plugging and unplugging times, wherein j is more than or equal to 1 and less than or equal to n;
therefore, the relation between the plugging times of the charging assembly and the heating rate in each constant temperature environment is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210469397.3A CN115092001B (en) | 2022-04-28 | 2022-04-28 | Electric automobile charging assembly temperature monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210469397.3A CN115092001B (en) | 2022-04-28 | 2022-04-28 | Electric automobile charging assembly temperature monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115092001A true CN115092001A (en) | 2022-09-23 |
| CN115092001B CN115092001B (en) | 2023-08-04 |
Family
ID=83287653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210469397.3A Active CN115092001B (en) | 2022-04-28 | 2022-04-28 | Electric automobile charging assembly temperature monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115092001B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010110055A (en) * | 2008-10-28 | 2010-05-13 | Panasonic Electric Works Co Ltd | Charging cable for electric vehicle |
| CN104424396A (en) * | 2013-08-30 | 2015-03-18 | 通用汽车环球科技运作有限责任公司 | Method for predicting charging process duration |
| CN107925259A (en) * | 2015-06-04 | 2018-04-17 | X开发有限责任公司 | System and method for battery charging |
| CN110014928A (en) * | 2017-10-16 | 2019-07-16 | 现代自动车株式会社 | Device and method for preventing charging inlet superheat |
| CN110562097A (en) * | 2019-09-20 | 2019-12-13 | 芜湖宏景电子股份有限公司 | New energy automobile charging remaining time estimation method |
| CN112172604A (en) * | 2019-07-01 | 2021-01-05 | 福特全球技术公司 | SOC (System on chip) resetting method based on self-adaptive open-circuit voltage at end of charging |
| CN113968160A (en) * | 2021-09-29 | 2022-01-25 | 华人运通(江苏)技术有限公司 | Vehicle charging time estimation method, device, equipment and storage medium |
-
2022
- 2022-04-28 CN CN202210469397.3A patent/CN115092001B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010110055A (en) * | 2008-10-28 | 2010-05-13 | Panasonic Electric Works Co Ltd | Charging cable for electric vehicle |
| CN104424396A (en) * | 2013-08-30 | 2015-03-18 | 通用汽车环球科技运作有限责任公司 | Method for predicting charging process duration |
| CN107925259A (en) * | 2015-06-04 | 2018-04-17 | X开发有限责任公司 | System and method for battery charging |
| CN110014928A (en) * | 2017-10-16 | 2019-07-16 | 现代自动车株式会社 | Device and method for preventing charging inlet superheat |
| CN112172604A (en) * | 2019-07-01 | 2021-01-05 | 福特全球技术公司 | SOC (System on chip) resetting method based on self-adaptive open-circuit voltage at end of charging |
| CN110562097A (en) * | 2019-09-20 | 2019-12-13 | 芜湖宏景电子股份有限公司 | New energy automobile charging remaining time estimation method |
| CN113968160A (en) * | 2021-09-29 | 2022-01-25 | 华人运通(江苏)技术有限公司 | Vehicle charging time estimation method, device, equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115092001B (en) | 2023-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102569938B (en) | Heat management device of power battery | |
| CN201323466Y (en) | Single battery charger adopting an SCM to conduct safety control | |
| CN109301399B (en) | Multi-branch regional power battery system heating method and system | |
| CN112563623A (en) | Battery heating system | |
| CN109921146A (en) | A kind of power battery low temperature self-heating system and method based on instantaneous external short circuit | |
| CN110614936B (en) | Remote online equalization method and device for battery pack | |
| CN110501653B (en) | Battery cell temperature acquisition method and device and vehicle control unit | |
| KR102632629B1 (en) | Apparatus and method for diagnosing battery cell | |
| CN116176358B (en) | Battery thermal management method, device, storage medium and equipment | |
| CN112421717A (en) | Charging method and charging device of battery system | |
| CN115520041A (en) | Mobile charging vehicle capable of detecting health degree of battery and implementation method thereof | |
| CN101931111B (en) | Method and device for controlling heating of battery | |
| CN201174609Y (en) | Accumulator on-line equilibrium instrument | |
| CN115092001A (en) | Electric automobile charging assembly temperature monitoring system | |
| CN211653012U (en) | Battery package low temperature heating function test device | |
| CN111948540A (en) | Power battery pack temperature prediction method and system | |
| KR102111412B1 (en) | Hybrid battery management system | |
| CN115195529B (en) | Battery control method, electronic equipment and battery control system | |
| CN114407730B (en) | Low-temperature heat management system and method for extended-range new energy automobile | |
| CN114156551A (en) | Battery system and control method of battery system | |
| CN113589173A (en) | Short circuit detection method for starting battery | |
| CN117529866A (en) | Modifying battery charging algorithm based on charging history | |
| Zhen et al. | A novel comprehensive evaluation method for state-of-health of lead-acid batteries | |
| CN116995340B (en) | Multipolar self-switching detection device and detection method for energy storage battery box | |
| CN112260358B (en) | Composite energy storage system, control method thereof and mobile device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |