CN111497620B - Detection method of electric vehicle thermal management function detection system - Google Patents
Detection method of electric vehicle thermal management function detection system Download PDFInfo
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- CN111497620B CN111497620B CN202010308905.0A CN202010308905A CN111497620B CN 111497620 B CN111497620 B CN 111497620B CN 202010308905 A CN202010308905 A CN 202010308905A CN 111497620 B CN111497620 B CN 111497620B
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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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- 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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
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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
- 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
- B60L2240/545—Temperature
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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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a detection method of a thermal management function detection system of an electric automobile, wherein the detection system comprises a thermal management function detection controller and a conventional thermal management system controller, the signal input ends of the thermal management function detection controller and the conventional thermal management system controller are respectively connected with a thermal management function detection instructor and a temperature sensor, the signal output ends of the thermal management function detection controller and the conventional thermal management system controller are respectively connected with a battery circulating water system, a battery heating system, a battery cooling system and a detection display, the temperature sensor is bypassed in the battery circulating water system, and the battery heating system and the battery cooling system respectively exchange heat with the battery circulating water system through a three-way heat exchanger; the detection method comprises the steps of 1) detecting the self-circulation function; 2) detecting a battery heating function; 3) and detecting the cooling function of the battery. The invention is suitable for high-beat production lines, realizes rapid online detection, improves the detection rate of faults and effectively prevents the faults from being generated.
Description
Technical Field
The invention relates to the technical field of automobile thermal management systems, in particular to a detection method of a thermal management function detection system of an electric automobile.
Background
Under the strong support of national industrial policies, the leap-type development of the new energy automobile market is realized. However, since the energy source of the electric vehicle is a power battery, the energy storage and conversion efficiency of the electric vehicle is obviously affected by the ambient temperature, and the whole vehicle thermal management system and the control strategy thereof must be redesigned. And the aspects of a heating system, an air-conditioning refrigeration system, a power battery circulating system and the like are controlled to ensure the safety and the endurance mileage of the vehicle. How the heat management system detects that the system works normally to prevent poor manufacturing outflow is not efficient and direct, the system can be ensured to function normally only by means of quality control of parts, the risk of poor manufacturing outflow exists, and serious potential safety hazards are generated on safe driving of an automobile.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a detection method of a thermal management function detection system of an electric vehicle, which has the function of quickly performing self-detection on the thermal management system on line and effectively prevents the generation of faults.
In order to achieve the above object, the present invention provides a detection method for a thermal management function detection system of an electric vehicle, which is characterized in that: electric automobile thermal management function detecting system includes thermal management function detection controller and conventional thermal management system controller, thermal management function detection controller with the signal input part of conventional thermal management system controller is equallyd divide and is do not connected with thermal management function detection instructor and temperature sensor, and its signal output part is equallyd divide and is do not connected with battery circulating water system, battery heating system, battery cooling system and detection display, the temperature sensor bypass is in battery circulating water system, battery heating system with battery cooling system all exchanges heat with battery circulating water system respectively through the tee bend heat exchanger.
The battery circulating water system comprises a battery and a battery circulating water pump which are connected in series, the temperature sensor is arranged on the battery, and the battery circulating water pump is respectively connected with the signal output ends of the heat management function detection controller and the conventional heat management system controller.
The battery heating system comprises a PTC heater and a PTC heating water pump which are connected in series, and the PTC heater and the PTC heating water pump are respectively connected with the signal output ends of the heat management function detection controller and the conventional heat management system controller.
The battery cooling system comprises a compressor, a condenser and an electromagnetic valve which are sequentially connected in series, wherein the compressor is respectively connected with the signal output ends of the heat management function detection controller and the conventional heat management system controller.
The detection method comprises the following steps:
1) the method comprises the steps that a self-checking instruction is input through a thermal management function detection instructor, a thermal management function detection controller receives the self-checking instruction and controls a thermal management function detection system of the electric vehicle to enter a self-circulation function detection mode, and if a battery circulating water pump works abnormally, a detection display displays a self-circulation function fault; if the battery circulating water pump works normally, entering the next step;
2) the thermal management function detection controller controls the thermal management function detection system of the electric automobile to enter a battery heating function detection mode, and if the temperature rise of the battery is smaller than a temperature rise critical value, a detection display displays a battery heating function fault; if the temperature rise of the battery is greater than or equal to the critical temperature rise value, entering the next step;
3) the thermal management function detection controller controls the thermal management function detection system of the electric automobile to enter a battery cooling function detection mode, and if the temperature drop of the battery is smaller than a temperature drop critical value, the detection display displays a battery cooling function fault; and if the temperature drop of the battery is greater than or equal to the temperature drop critical value, finishing the self-checking and entering a conventional thermal management mode.
Furthermore, a battery circulating water channel connected with a battery circulating water system in series, and a battery heating channel and a battery cooling channel which exchange heat with the battery circulating water channel respectively are arranged in the three-way heat exchanger, the battery heating channel is connected with the battery heating system in series, and the battery cooling channel is connected with the battery cooling system in series.
Further, in the self-circulation function detection mode, the battery circulating water pump is turned on, and the PTC heating water pump and the electromagnetic valve are turned off.
Further, in the battery heating function detection mode, the battery circulating water pump and the PTC heating water pump are opened, and the electromagnetic valve is closed.
Further, in the battery cooling function detection mode, the battery circulating water pump and the electromagnetic valve are opened, and the PTC heating water pump is closed.
Further, during self-checking, the conventional thermal management system controller does not work; in the normal thermal management mode, the normal thermal management system controller works, and the thermal management function detection controller does not work.
The invention has the beneficial effects that: the online self-checking is fast, and the generation of faults is effectively prevented. The invention does not need to change the structure of the original conventional thermal management system, receives an automatic detection instruction through the thermal management function detection controller, controls the battery circulating water system, the battery heating system and the battery cooling system to sequentially detect the self-circulation function, the battery heating function and the battery cooling function, and judges whether each function is normal or not through the temperature change of the battery. The detection system and the detection method are suitable for high-beat production lines, rapid online detection is realized, the detection rate of faults is improved, and the faults are effectively prevented from being produced.
Drawings
FIG. 1 is a schematic diagram of a thermal management function detection system of an electric vehicle.
The components in the figures are numbered as follows: the system comprises a thermal management function detection commander 1, a thermal management function detection controller 2, a temperature sensor 3, a three-way heat exchanger 4, a battery circulating water channel 401, a battery heating channel 402, a battery cooling channel 403, a detection display 5, a conventional thermal management system controller 6, a battery 7, a battery circulating water pump 8, a PTC heater 9, a PTC heating water pump 10, a compressor 11, a condenser 12 and an electromagnetic valve 13.
Detailed Description
The invention will be described in more detail below with reference to the accompanying drawings, which are included to provide a more clear understanding of the invention, but are not intended to limit the invention.
As shown in fig. 1, a system for detecting a thermal management function of an electric vehicle is characterized in that: the heat management system comprises a heat management function detection controller 2 and a conventional heat management system controller 6, wherein the signal input ends of the heat management function detection controller 2 and the conventional heat management system controller 6 are respectively connected with a heat management function detection instructor 1 and a temperature sensor 3, the signal output ends of the heat management function detection controller 2 and the conventional heat management system controller 6 are respectively connected with a battery circulating water system, a battery heating system, a battery cooling system and a detection display 5, the temperature sensor 3 is in bypass connection with the battery circulating water system, and the battery heating system and the battery cooling system respectively exchange heat with the battery circulating water system through a three-way heat exchanger 4.
In the above technical solution, a battery circulating water channel 401 connected in series with the battery circulating water system, and a battery heating channel 402 and a battery cooling channel 403 respectively exchanging heat with the battery circulating water channel 401 are arranged in the three-way heat exchanger 4, the battery heating channel 402 is connected in series with the battery heating system, and the battery cooling channel 403 is connected in series with the battery cooling system.
In the above technical scheme, the battery circulating water system comprises a battery 7 and a battery circulating water pump 8 which are connected in series, the temperature sensor 3 is arranged on the battery 7, and the battery circulating water pump 8 is respectively connected with the signal output ends of the heat management function detection controller 2 and the conventional heat management system controller 6.
In the above technical scheme, the battery heating system comprises a PTC heater 9 and a PTC water heating pump 10 which are connected in series, and the PTC heater 9 and the PTC water heating pump 10 are respectively connected with the signal output ends of the thermal management function detection controller 2 and the conventional thermal management system controller 6.
In the above technical solution, the battery cooling system includes a compressor 11, a condenser 12 and an electromagnetic valve 13 which are connected in series in sequence, and the compressor 11 is connected with the signal output ends of the thermal management function detection controller 2 and the conventional thermal management system controller 6 respectively.
The detection method of the electric vehicle thermal management function detection system comprises the following steps:
1. a detection person inputs a self-checking instruction through the thermal management function detection instructor 1, the conventional thermal management system controller 6 does not work, the thermal management function detection controller 2 receives the self-checking instruction and controls the thermal management function detection system of the electric automobile to enter a self-circulation function detection mode, at the moment, the battery circulating water pump 8 is started, and the PTC heating water pump 10 and the electromagnetic valve 13 are closed. If the battery circulating water pump 8 works abnormally, the thermal management function detection controller 2 outputs the detection result to the detection display 5 and displays the self-circulation function fault; and if the battery circulating water pump 8 works normally, the next step is carried out.
2. The heat management function detection controller 2 controls the electric vehicle heat management function detection system to enter a battery heating function detection mode, at the moment, the battery circulating water pump 8 and the PTC heating water pump 10 are opened, and the electromagnetic valve 13 is closed. The thermal management function detection controller 2 receives the temperature change of the temperature sensor and makes a judgment, and if the temperature rise of the battery is smaller than the temperature rise critical value, the detection display 5 displays the heating function fault of the battery; and if the temperature rise of the battery is greater than or equal to the temperature rise critical value, entering the next step.
3. The heat management function detection controller 2 controls the electric vehicle heat management function detection system to enter a battery cooling function detection mode, at the moment, the battery circulating water pump 8 and the electromagnetic valve 13 are opened, and the PTC heating water pump 10 is closed. If the temperature drop of the battery is less than the temperature drop critical value, the detection display 5 displays the battery cooling function fault; the thermal management function detection controller 2 receives the temperature change of the temperature sensor and makes a judgment, if the temperature drop of the battery is greater than or equal to the temperature drop critical value, the self-checking is finished, a conventional thermal management mode is entered, at the moment, the conventional thermal management system controller 6 works, and the thermal management function detection controller 2 does not work.
The invention does not need to change the structure of the original conventional thermal management system, receives an automatic detection instruction through the thermal management function detection controller, controls the battery circulating water system, the battery heating system and the battery cooling system to sequentially detect the self-circulation function, the battery heating function and the battery cooling function, and judges whether each function is normal or not through the temperature change of the battery. The detection system and the detection method are suitable for high-beat production lines, rapid online detection is realized, the detection rate of faults is improved, and the faults are effectively prevented from being produced.
Claims (5)
1. A detection method of a thermal management function detection system of an electric vehicle is characterized by comprising the following steps: the electric automobile heat management function detection system comprises a heat management function detection controller (2) and a conventional heat management system controller (6), wherein the signal input ends of the heat management function detection controller (2) and the conventional heat management system controller (6) are respectively connected with a heat management function detection commander (1) and a temperature sensor (3), the signal output ends of the heat management function detection controller and the conventional heat management system controller are respectively connected with a battery circulating water system, a battery heating system, a battery cooling system and a detection display (5), the temperature sensor (3) is in bypass connection with the battery circulating water system, and the battery heating system and the battery cooling system respectively exchange heat with the battery circulating water system through a three-way heat exchanger (4);
the battery circulating water system comprises a battery (7) and a battery circulating water pump (8) which are connected in series, the temperature sensor (3) is arranged on the battery (7), and the battery circulating water pump (8) is respectively connected with the signal output ends of the heat management function detection controller (2) and the conventional heat management system controller (6);
the battery heating system comprises a PTC heater (9) and a PTC heating water pump (10) which are connected in series, wherein the PTC heater (9) and the PTC heating water pump (10) are respectively connected with the signal output ends of the heat management function detection controller (2) and the conventional heat management system controller (6);
the battery cooling system comprises a compressor (11), a condenser (12) and an electromagnetic valve (13) which are sequentially connected in series, wherein the compressor (11) is respectively connected with the signal output ends of the heat management function detection controller (2) and the conventional heat management system controller (6);
the detection method comprises the following steps:
1) a self-checking instruction is input through the thermal management function detection instructor (1), the thermal management function detection controller (2) receives the self-checking instruction and controls the thermal management function detection system of the electric automobile to enter a self-circulation function detection mode, and if the battery circulating water pump (8) works abnormally, the detection display (5) displays a self-circulation function fault; if the battery circulating water pump (8) works normally, the next step is carried out;
2) the thermal management function detection controller (2) controls the thermal management function detection system of the electric automobile to enter a battery heating function detection mode, and if the temperature rise of the battery is smaller than a temperature rise critical value, the detection display (5) displays the battery heating function fault; if the temperature rise of the battery is greater than or equal to the critical temperature rise value, entering the next step;
3) the thermal management function detection controller (2) controls the thermal management function detection system of the electric automobile to enter a battery cooling function detection mode, and if the temperature drop of the battery is smaller than a temperature drop critical value, the detection display (5) displays the battery cooling function fault; and if the temperature drop of the battery is greater than or equal to the temperature drop critical value, finishing the self-checking and entering a conventional thermal management mode.
2. The detection method of the electric vehicle thermal management function detection system according to claim 1, characterized in that: in the self-circulation function detection mode, the battery circulating water pump (8) is started, and the PTC heating water pump (10) and the electromagnetic valve (13) are closed.
3. The detection method of the electric vehicle thermal management function detection system according to claim 1, characterized in that: in the battery heating function detection mode, the battery circulating water pump (8) and the PTC heating water pump (10) are opened, and the electromagnetic valve (13) is closed.
4. The detection method of the electric vehicle thermal management function detection system according to claim 1, characterized in that: in the battery cooling function detection mode, a battery circulating water pump (8) and an electromagnetic valve (13) are opened, and a PTC heating water pump (10) is closed.
5. The detection method of the electric vehicle thermal management function detection system according to claim 1, characterized in that: during self-checking, the conventional thermal management system controller (6) does not work; in the normal thermal management mode, the controller (6) of the normal thermal management system works, and the detection controller (2) of the thermal management function does not work.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010308905.0A CN111497620B (en) | 2020-04-19 | 2020-04-19 | Detection method of electric vehicle thermal management function detection system |
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| CN202010308905.0A CN111497620B (en) | 2020-04-19 | 2020-04-19 | Detection method of electric vehicle thermal management function detection system |
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| CN111497620A CN111497620A (en) | 2020-08-07 |
| CN111497620B true CN111497620B (en) | 2021-11-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203198686U (en) * | 2013-03-22 | 2013-09-18 | 北京汽车股份有限公司 | Self-checking device of vehicle air conditioner |
| CN206374503U (en) * | 2016-12-23 | 2017-08-04 | 北汽福田汽车股份有限公司 | A kind of automobile and its Air conditioner on car system |
| CN106828022B (en) * | 2017-03-08 | 2023-11-14 | 四川航勰汽车空调有限公司 | Pure electric vehicles thermal management system and air conditioning system |
| CN109532562A (en) * | 2018-09-21 | 2019-03-29 | 江苏敏安电动汽车有限公司 | A kind of electric car active heat management control method |
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