CN109904562B - Vehicle-mounted battery charging and heating control system and control method - Google Patents
Vehicle-mounted battery charging and heating control system and control method Download PDFInfo
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- CN109904562B CN109904562B CN201910086429.XA CN201910086429A CN109904562B CN 109904562 B CN109904562 B CN 109904562B CN 201910086429 A CN201910086429 A CN 201910086429A CN 109904562 B CN109904562 B CN 109904562B
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using 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
- Y02T10/70—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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the invention discloses a vehicle-mounted battery charging and heating control system and a control method, and the vehicle-mounted battery charging and heating control system comprises a dual-mode controller, a direct-current converter, a battery box and a battery pack, wherein one end of the direct-current converter is connected with the dual-mode controller, the other end of the direct-current converter is externally connected with a power supply, the dual-mode controller comprises a charger and a heater, the battery pack is arranged in the battery box, the dual-mode controller is provided with a controller water outlet and a controller water inlet, the controller water outlet is communicated with the battery box water inlet through a circulating pipeline, the battery box water outlet is communicated with the controller water inlet, and the charger can be selectively electrically connected with the heater or the battery pack. The dual-mode controller is adopted to control the heater to heat or charge the battery pack, and meanwhile, the heat consumption of the charger is utilized to heat and preserve heat of the circulating pipeline during charging, so that the dual-mode controller has the advantages of simple structure and energy conservation.
Description
Technical Field
The invention relates to the field of charging of new energy automobiles, in particular to a charging and heating control system and a charging and heating control method for a vehicle-mounted battery.
Background
Modern automobiles rapidly lead market trend along with exhaustion of fossil raw materials, electromotion and other new energy automobiles. In winter, the endurance of the new energy electric automobile generally shrinks greatly, mainly because the viscosity of the electrolyte of the battery pack rises and the charge and discharge performance of the battery pack is reduced at low temperature. Theoretically: in an environment of-20 degrees celsius, the prohibition of charging a lithium battery can cause permanent damage to the battery. A temperature of the battery pack below 0 c may result in a situation where charging is too slow or impossible. The electric automobile can be preheated by installing the automobile parking heater to enable the battery pack of the new energy automobile to be at a normal working temperature, the problem that the cruising ability of the new energy automobile is reduced in a low-temperature environment in winter is solved, and the damage of low-temperature charging to the battery pack is avoided.
The battery pack heating system of the new-energy pure electric vehicle mainly adopts the following two modes, namely, a water heating heater is installed on the new-energy electric vehicle, and the battery pack is heated by heat transferred to reach normal working temperature. The fuel of the water heating heater can be various types such as fuel oil, diesel oil, formaldehyde and the like, the oil consumption is low, no obvious noise exists, the automobile battery pack can be preheated, the cab of the new energy electric vehicle can be heated, the electric quantity consumption of the electric vehicle is reduced, the service life of the electric vehicle is prolonged, and the cost for replacing the battery pack is saved. The other is that the PTC heater is arranged on the new-energy electric automobile, so that heat can be transferred to the battery pack of the electric automobile to preheat the battery pack, and the battery pack is kept at a normal working temperature.
The existing electric automobile battery pack heating system heater and the vehicle-mounted charger are two independent components, a battery pack needs to be controlled to be charged through a charging controller, the heater is controlled to be heated through the heater controller, and heating is finished after the heater is turned off. In consideration of cost reduction and energy conservation, the dual-mode controller can be adopted to control the heater to heat or charge the battery pack, and meanwhile, the heat consumption of the charger is utilized to heat and preserve heat of the circulating pipeline during charging.
Disclosure of Invention
The invention aims to solve the technical problem that the performance of a battery pack is reduced due to the fact that the temperature of the battery pack does not reach the standard, and the battery pack is charged too slowly or even cannot be charged.
In order to solve the technical problems, the invention adopts a dual-mode controller to control a heater to heat or charge a battery pack aiming at the defects and defects of the prior art, and simultaneously utilizes the heat consumption of a charger to heat and preserve heat of a circulating pipeline during charging.
The embodiment of the invention provides a vehicle-mounted battery charging and heating control system which comprises a dual-mode controller, a direct-current converter, a battery box and a battery pack, wherein one end of the direct-current converter is externally connected with a power supply, the other end of the direct-current converter is connected with the dual-mode controller, the dual-mode controller comprises a charger and a heater, the battery pack is arranged in the battery box, the dual-mode controller is provided with a controller water outlet and a controller water inlet, the controller water outlet is communicated with the battery box water inlet through a circulating pipeline, the battery box water outlet is communicated with the controller water inlet, and the charger can be selectively electrically connected with the heater or the battery pack.
Furthermore, a circulating pump is arranged on a pipeline for communicating the water outlet of the battery box with the water inlet of the controller, and the circulating pump is used for providing power for a circulating water pipeline channel.
Further, a temperature sensor is arranged on the battery pack and used for detecting the temperature of the battery pack.
Further, the dual-mode controller is an integrated product of a charger and a heater, and the dual-mode controller controls whether the heater is started or not by judging the temperature of the temperature sensor.
Further, a first relay is arranged between the charger and the heater.
Further, a second relay is arranged between the charger and the battery pack.
Further, the circulating pipeline is wrapped with a heat insulation layer, and the heat insulation layer is used for preventing heat loss.
Further, the battery pack is a battery module formed by a plurality of battery packs connected in series or in parallel.
The invention also provides a charging and heating control method of the vehicle-mounted battery, which comprises the following steps:
s1: monitoring, namely monitoring the temperature of the battery pack in real time through a temperature sensor and transmitting a detected signal to a dual-mode controller;
s2: judging whether the temperature in the battery pack is lower than 0 ℃ or not by the dual-mode controller, and reaching the charging temperature of the battery pack;
s3: controlling, namely controlling the heater to heat through the dual-mode controller when the temperature of the battery pack is lower than 0 ℃, wherein the heater heats liquid in a circulating pipeline, heats the battery pack and starts a circulating pump at the same time;
s4: and a second judgment step, when the temperature sensor monitors that the temperature of the battery pack reaches the proper temperature, heating is stopped, the dual-mode controller sends an instruction to disconnect a first relay between a charger and a heater, and switch on a second relay between the charger and the battery pack, so that the battery pack is charged through a power supply.
The embodiment of the invention has the following beneficial effects:
(1) the invention effectively relieves the phenomenon that the battery pack in the electric automobile is charged too slowly or even cannot be charged due to too low temperature. When the temperature is low, the dual-mode controller is used for controlling the output of the charger, the heater is used for heating the battery pack and then charging, when the temperature is charged, the charging loss generated when the charger works is used for achieving the heat preservation and heating effects on the circulating pipeline, and the energy saving effect is achieved to a certain extent.
(2) The invention utilizes the dual-mode controller to simultaneously control the heating mode and the charging mode, thereby utilizing the function of the controller to the maximum.
(3) The invention has compact structure, small occupied space, good working effect, convenient and safe operation, good heating stability and strong system universality, and can be used on various electric automobiles.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of a vehicle battery charging and heating control system according to the present invention;
fig. 2 is a liquid circulation diagram of an on-board battery charging heating control system of the present invention.
Wherein the reference numerals in the figures correspond to: 1-a dual-mode controller, 2-a direct current converter, 3-a charger, 4-a heater, 5-a temperature sensor, 6-a battery pack, 7-a water pump, 8-a circulating pipeline, 9-a battery box, 11-a first relay, 12-a second relay, 13-a controller water outlet, 14-a controller water inlet, 91-a battery box water inlet and 92-a battery box water outlet.
Detailed Description
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.
Example 1:
as shown in fig. 1, a vehicle-mounted battery charging and heating control system comprises a dual-mode controller 1, a direct-current converter 2, a battery box 9 and a battery pack 6, wherein one end of the direct-current converter 2 is connected with the dual-mode controller 1, the other end of the direct-current converter is externally connected with a power supply, the dual-mode controller 1 comprises a charger 3 and a heater 4, the battery pack 6 is arranged in the battery box 9, the dual-mode controller 1 is provided with a controller water outlet 13 and a controller water inlet 14, the controller water outlet 13 is communicated with a battery box water inlet 91 through a circulating pipeline 8, the battery box water outlet 92 is communicated with the controller water inlet 14, and a heat insulation layer is coated outside the circulating pipeline 8 and used for preventing heat loss. And a circulating pump 7 is arranged on a circulating pipeline communicated with the water outlet 92 of the battery box and the water inlet 14 of the controller, and the circulating pump 7 is used for providing power for a circulating pipeline channel.
Specifically, the charger 3 is selectively electrically connected with the heater 4 or the battery pack 6. A first relay 11 is arranged between the charger 3 and the heater 4. A second relay 12 is arranged between the charger 3 and the battery pack 6.
Specifically, the battery pack 6 is a battery module formed by a plurality of battery packs connected in series or in parallel. The battery pack 6 is provided with a temperature sensor 5, and the temperature sensor 5 is used for detecting the temperature of the battery pack 6.
Specifically, the dual-mode controller 1 is an integrated product of a charger 3 and a heater 4, and the dual-mode controller 1 controls whether the heater 4 is turned on or not by judging the temperature of a temperature sensor 5.
As shown in fig. 2, in the liquid circulation diagram of the vehicle-mounted battery charging and heating control system, the charger 3 and the heater 4 are arranged outside the circulation pipeline 8, the heating liquid flows out from the water outlet 13 of the controller, enters the battery box with the heat preservation pipeline inside from the water inlet 91 of the battery box through the circulation pipeline 8 to heat the battery pack, and flows out from the water outlet 92 of the battery box, enters the water inlet 14 of the controller through the circulation pump 7, and is heated again for the next circulation. When the heater 4 works, the heater heats the liquid in the circulating pipeline through the pipeline shell, and when the heater 4 stops working and charges the battery pack 6, the heat generated by the working of the charger 3 is utilized to keep the temperature of the circulating pipeline 8.
A control method of a vehicle-mounted battery charging and heating control system comprises the following steps:
s1: a monitoring step, namely monitoring the temperature of the battery pack in real time through a temperature sensor 5 and transmitting a detected signal to the dual-mode controller 1;
s2: judging whether the temperature in the battery pack is lower than 0 ℃ or not by the dual-mode controller to reach the charging temperature of the battery pack 6;
s3: a control step, when the temperature of a battery pack 6 is lower than 0 ℃, a heater 4 is controlled to heat through the dual-mode controller 1, the heater heats liquid in a circulating pipeline 8, the battery pack is heated, and a circulating pump 7 is started at the same time;
s4: and step two, when the temperature sensor 5 monitors that the temperature of the battery pack 6 reaches a proper temperature, heating is stopped, the dual-mode controller 1 sends an instruction to disconnect a first relay 11 between the charger 3 and the heater 4, the dual-mode controller is switched to a charging function, a second relay 12 between the charger 3 and the battery pack 6 is switched on, and the battery pack 6 is charged through a power supply.
According to the battery charging and heating control method, the battery pack is heated by the circulating pipeline heating liquid, and the electric quantity of the battery is not consumed, so that the dynamic property and the endurance mileage of the electric automobile are not influenced; the dual-mode controller controls the heater to work or charges the battery pack by controlling the relay, and the control method is simple.
When the temperature is low, the dual-mode controller can be used for controlling the output of the charger, and the heater is used for heating the battery pack to reach the proper temperature and then charging. The method can avoid the situation that the electric automobile cannot be started due to the fact that the temperature of the battery pack is too low, and therefore the application range of the pure electric automobile is expanded. The invention effectively relieves the phenomenon that the battery pack in the electric automobile is charged too slowly or even cannot be charged due to too low temperature. The heat generated by the charger during working can be used for keeping warm and heating the circulating pipeline, so that energy is saved to a certain extent. The system utilizes the dual-mode controller to simultaneously control the heating mode and the charging mode, thereby avoiding the use of the heating controller and maximizing the utilization of the functions of the controller. The system has the advantages of compact structure, small occupied space, good working effect, convenient and safe operation, good heating stability and strong system universality, and can be used on various electric automobiles.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (9)
1. A vehicle-mounted battery charging and heating control system is characterized by comprising a dual-mode controller (1), a direct-current converter (2), a battery box (9) and a battery pack (6);
one end of the direct current converter (2) is externally connected with a power supply, the other end of the direct current converter is connected with a dual-mode controller (1), the dual-mode controller (1) comprises a charger (3) and a heater (4), the battery pack (6) is arranged in the battery box (9), the dual-mode controller (1) is provided with a controller water outlet (13) and a controller water inlet (14), the controller water outlet (13) is directly communicated with a battery box water inlet (91) through a circulating pipeline (8), a battery box water outlet (92) is communicated with the controller water inlet (14), and the charger (3) is selectively and electrically connected with the heater (4) or the battery pack (6);
the charger (3) and the heater (4) are arranged on the outer side of the circulating pipeline (8), and liquid in the circulating pipeline (8) is heated through the pipeline shell;
when the heater (4) works, the heater (4) heats the liquid in the circulating pipeline (8); when the heater (4) stops working and the charger (3) charges the battery pack (6), the heat generated by the working of the charger (3) can heat and insulate the circulating pipeline (8).
2. The vehicle-mounted battery charging and heating control system according to claim 1, wherein a circulating pump (7) is arranged on a pipeline of the battery box water outlet (92) and the controller water inlet (14), and the circulating pump (7) is used for providing power for circulating the heating liquid in a circulating pipeline.
3. The vehicle-mounted battery charging and heating control system according to claim 1, wherein a temperature sensor (5) is arranged on the battery pack (6), and the temperature sensor (5) is used for detecting the temperature of the battery pack (6).
4. The charging and heating control system for the vehicle-mounted battery according to claim 1, characterized in that the dual-mode controller (1) is an integrated product of a charger (3) and a heater (4), and the dual-mode controller (1) controls whether the heater (4) is turned on or not by judging the temperature of the temperature sensor (5).
5. The vehicle-mounted battery charging and heating control system according to claim 1, characterized in that a first relay (11) is arranged between the charger (3) and the heater (4).
6. The vehicle-mounted battery charging and heating control system according to claim 1, characterized in that a second relay (12) is arranged between the charger (3) and the battery pack (6).
7. The on-vehicle battery charging heating control system according to claim 1, wherein the circulation duct (8) is externally coated with a heat insulating layer for preventing heat loss.
8. The charging and heating control system for the vehicle-mounted battery according to claim 1, wherein the battery pack (6) is a battery module formed by a plurality of battery packs connected in series or in parallel.
9. A charging and heating control method for a vehicle-mounted battery is characterized by comprising the following steps:
s1: a monitoring step, namely monitoring the temperature of the battery pack in real time through a temperature sensor (5) and transmitting a detected signal to a dual-mode controller (1);
s2: judging whether the temperature in the battery pack is lower than 0 ℃ or not by the dual-mode controller to reach the charging temperature of the battery pack (6);
s3: a control step, when the temperature of a battery pack (6) is lower than 0 ℃, a heater (4) is controlled to heat through the dual-mode controller (1), the heater heats liquid in a circulating pipeline (8), the battery pack is heated, and a circulating pump (7) is started at the same time;
s4: and a second judgment step, when the temperature sensor (5) monitors that the temperature of the battery pack (6) reaches a proper temperature, stopping heating, sending an instruction by the dual-mode controller (1) to turn off a first relay (11) between the charger (3) and the heater (4), turning on a second relay (12) between the charger (3) and the battery pack (6), charging the battery pack (6) through a power supply, and heating and insulating the circulating pipeline (8) by utilizing heat generated by the work of the charger (3), wherein the charger (3) and the heater (4) are arranged outside the circulating pipeline (8), and liquid in the circulating pipeline (8) is heated through a pipeline shell.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910086429.XA CN109904562B (en) | 2019-01-29 | 2019-01-29 | Vehicle-mounted battery charging and heating control system and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910086429.XA CN109904562B (en) | 2019-01-29 | 2019-01-29 | Vehicle-mounted battery charging and heating control system and control method |
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| CN109904562B true CN109904562B (en) | 2021-09-14 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111584976B (en) * | 2020-05-21 | 2021-05-11 | 安徽江淮汽车集团股份有限公司 | Heating control system and method for battery pack of electric vehicle |
| CN113285144B (en) * | 2021-05-18 | 2024-04-02 | 江苏正力新能电池技术有限公司 | Composite heating system and heating method and device thereof |
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| US20140333267A1 (en) * | 2013-05-10 | 2014-11-13 | Fairchild Semiconductor Corporation | Heated accelerated battery charging |
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| CN202276164U (en) * | 2011-09-29 | 2012-06-13 | 浙江吉利汽车研究院有限公司 | Vehicle-mounted charger power supply device |
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