CN112248883B - Heating method and device of power battery and electronic equipment - Google Patents
Heating method and device of power battery and electronic equipment Download PDFInfo
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- CN112248883B CN112248883B CN202011175596.0A CN202011175596A CN112248883B CN 112248883 B CN112248883 B CN 112248883B CN 202011175596 A CN202011175596 A CN 202011175596A CN 112248883 B CN112248883 B CN 112248883B
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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
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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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
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
- B60L58/32—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load
- B60L58/34—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells for controlling the temperature of fuel cells, e.g. by controlling the electric load 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
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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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a heating method and a heating device for a power battery and electronic equipment, wherein the heating method comprises the following steps: acquiring the residual electric quantity of the power battery to be heated, the temperature of the power battery to be heated and the distance of a route to be traveled; determining a vehicle travel distance when the power battery to be heated is heated to a target temperature based on the temperature of the power battery to be heated in the case where the remaining capacity is greater than a preset capacity threshold; and determining whether to start a heating source to heat the power battery to be heated or not based on the vehicle running distance and the distance of the route to be driven. When determining whether to start the heating source to heat the power battery to be heated, the invention considers factors in various aspects such as the residual electric quantity of the power battery to be heated, the distance of the route to be driven, the vehicle driving distance when the power battery to be heated is heated to the target temperature and the like, can well balance the endurance mileage, the dynamic property and the service life of the power battery, and has good practicability.
Description
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to a heating method and device of a power battery and electronic equipment.
Background
At present, vehicle motorization has become a trend. It is known that the power battery has a large attenuation in both charge and discharge power and capacity at low temperatures. If the vehicle runs, the electric quantity of the power battery can be consumed by heating the power battery, so that the endurance mileage is seriously attenuated; if the power battery is not heated, the battery is continuously low in temperature due to slow self-heating of the battery, so that the user experience is poor due to poor power performance, and the long-time low temperature has a large influence on the service life.
The existing strategy for heating the power battery is as follows: and detecting the temperature of the power battery, and comparing the detected temperature of the power battery with a threshold value. If the temperature of the power battery is less than the threshold value, starting a heating source to heat the power battery; and if the temperature of the power battery is not less than the threshold value, the power battery is not heated.
The above-mentioned strategy of heating for power battery can't realize power battery at continuation of the journey mileage, dynamic nature and life-span in balance, and the practicality is poor.
Disclosure of Invention
In view of the above, the present invention provides a method and an apparatus for heating a power battery, and an electronic device, so as to solve the technical problem that the conventional strategy for heating a power battery cannot achieve balance among a driving range, a dynamic property, and a service life of the power battery, and is poor in practicability.
In a first aspect, the present invention provides a method for heating a power battery, which is applied to a power battery management system, and the method includes:
acquiring the residual electric quantity of a power battery to be heated, the temperature of the power battery to be heated and the distance of a route to be traveled, wherein the distance of the route to be traveled is the distance of the route between the current position of the vehicle and the destination obtained through a navigation system;
determining a vehicle running distance when the power battery to be heated is heated to a target temperature based on the temperature of the power battery to be heated when the remaining electric quantity is greater than a preset electric quantity threshold value;
and determining whether to start a heating source to heat the power battery to be heated or not based on the vehicle running distance and the distance of the route to be run.
Further, the method further comprises:
and under the condition that the residual electric quantity is not greater than the preset electric quantity threshold value, the power battery to be heated is not heated.
Further, the method further comprises:
and if the distance of the route to be driven is not acquired, determining whether to start the heating source to heat the power battery to be heated or not based on the temperature of the power battery to be heated and a preset temperature threshold value.
Further, determining the vehicle travel distance as the power battery to be heated when heated to the target temperature based on the temperature of the power battery to be heated includes:
acquiring an ambient temperature;
and determining the vehicle driving distance when the power battery to be heated is heated to the target temperature according to the environment temperature and the temperature of the power battery to be heated.
Further, determining a vehicle travel distance as the power battery to be heated is heated to a target temperature based on the ambient temperature and the temperature of the power battery to be heated includes:
determining the temperature rise rate of the thermal power battery to be heated according to the environment temperature and a preset temperature rise rate table, wherein the preset temperature rise rate table is a corresponding relation between the environment temperature and the temperature rise rate;
determining the time required by the power battery to be heated to the target temperature according to the temperature rise rate of the power battery to be heated and the temperature of the power battery to be heated;
and determining the vehicle running distance according to the time and the vehicle speed information of the power battery to be heated.
Further, determining whether to start a heating source to heat the power battery to be heated based on the vehicle travel distance and the distance of the route to be traveled comprises:
if the vehicle running distance is smaller than the distance of the route to be run, starting the heating source to heat the power battery to be heated;
and if the vehicle running distance is not less than the distance of the route to be driven, the power battery to be heated is not heated.
In a second aspect, an embodiment of the present invention further provides a heating device for a power battery, which is applied to a power battery management system, and the device includes:
the system comprises an acquisition unit, a processing unit and a control unit, wherein the acquisition unit is used for acquiring the residual electric quantity of a power battery to be heated, the temperature of the power battery to be heated and the distance of a route to be traveled, and the distance of the route to be traveled is the distance of the route between the current position of a vehicle and a destination, which is acquired through a navigation system;
a first determination unit configured to determine a vehicle travel distance when the power battery to be heated is heated to a target temperature based on a temperature of the power battery to be heated, in a case where the remaining capacity is greater than a preset capacity threshold;
and the second determining unit is used for determining whether to start a heating source for heating the power battery to be heated based on the vehicle running distance and the distance of the route to be driven.
Further, the apparatus further comprises:
and the third determining unit is used for not heating the power battery to be heated under the condition that the residual electric quantity is not greater than the preset electric quantity threshold value.
In a third aspect, an embodiment of the present invention further provides an electronic device, including a memory and a processor, where the memory stores a computer program operable on the processor, and the processor implements the steps of the method in any one of the first aspect when executing the computer program.
In a fourth aspect, embodiments of the present invention also provide a computer-readable storage medium storing machine executable instructions, which when invoked and executed by a processor, cause the processor to perform the method of any of the first aspect.
In an embodiment of the present invention, a method for heating a power battery is provided, which is applied to a power battery management system, and the method includes: firstly, acquiring the residual electric quantity of a power battery to be heated, the temperature of the power battery to be heated and the distance of a route to be traveled; then, under the condition that the residual electric quantity is larger than a preset electric quantity threshold value, determining the vehicle running distance when the power battery to be heated is heated to the target temperature based on the temperature of the power battery to be heated; and finally, determining whether to start a heating source to heat the power battery to be heated or not based on the vehicle running distance and the distance of the route to be driven. According to the invention, when determining whether the heating source is started to heat the power battery to be heated, the factors in various aspects such as the residual electric quantity of the power battery to be heated, the distance of the route to be driven, the vehicle driving distance when the power battery to be heated is heated to the target temperature and the like are considered, the balance of the driving range, the dynamic property and the service life of the power battery can be well balanced, the practicability is good, the intention of a driver is met, and the technical problem that the balance of the driving range, the dynamic property and the service life of the power battery cannot be realized by the conventional strategy for heating the power battery and the practicability is poor is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in 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 some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a method for heating a power battery according to an embodiment of the present invention;
fig. 2 is a flow chart of another heating method for a power battery according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for determining whether to turn on a heating source to heat a power battery to be heated based on a vehicle driving distance and a distance of a route to be driven according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a heating device for a power battery according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. 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.
Currently, when determining whether to heat the power battery, the detected temperature of the power battery is generally compared with a threshold value, and whether to heat the power battery is determined according to the comparison result. The thermal management scheme with single control cannot realize the balance of the power battery on the endurance mileage, the dynamic performance and the service life, and has poor practicability.
Therefore, the embodiment provides the heating method of the power battery, and the method can realize the balance of the power battery on the endurance mileage, the dynamic performance and the service life and has good practicability.
Embodiments of the present invention are further described below with reference to the accompanying drawings.
The first embodiment is as follows:
in accordance with an embodiment of the present invention, there is provided an embodiment of a method for heating a power battery, where the steps illustrated in the flowchart of the figure may be performed in a computer system, such as a set of computer executable instructions, and where a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than that described herein.
Fig. 1 is a flow chart of a heating method of a power battery according to an embodiment of the invention, and as shown in fig. 1, the method is applied to a power battery management system, and includes the following steps:
step S102, acquiring the residual electric quantity of the power battery to be heated, the temperature of the power battery to be heated and the distance of a route to be traveled, wherein the distance of the route to be traveled is the distance of the route between the current position of the vehicle and the destination acquired through a navigation system;
in the embodiment of the invention, the heating method of the power battery can be executed by a power battery management system. The residual electric quantity of the power battery to be heated is the SOC of the power battery to be heated, the unit is 0% -100%, the distance of the route to be driven is obtained through a navigation system, if a user sets navigation information, the navigation system can determine the distance of the route to be driven according to the navigation information set by the user, and then the navigation system sends the determined distance of the route to be driven to a power battery management system, so that the power battery management system can obtain the distance of the route to be driven.
It should be noted that the heating method of the power battery of the present invention is operated in real time, and whether the power battery to be heated is adjusted in real time according to the operation result.
Step S104, judging whether the residual electric quantity is greater than a preset electric quantity threshold value; if the remaining power is greater than the preset power threshold, executing step S106; if the remaining capacity is not greater than the preset capacity threshold, executing step S108;
step S106, determining the vehicle running distance when the power battery to be heated is heated to the target temperature based on the temperature of the power battery to be heated;
step S108, the thermal power battery to be heated is not heated;
that is, when the remaining capacity is not greater than the preset capacity threshold, the power battery to be heated is not heated, so that the driving range (representing the maximum total driving range of the vehicle under the current capacity reserve) of the power battery to be heated can be ensured.
And step S110, determining whether to start a heating source to heat the power battery to be heated based on the vehicle running distance and the distance of the route to be driven.
The process will be described in detail below, and will not be described herein.
In an embodiment of the present invention, a method for heating a power battery is provided, which is applied to a power battery management system, and the method includes: firstly, acquiring the residual electric quantity of a power battery to be heated, the temperature of the power battery to be heated and the distance of a route to be traveled; then, under the condition that the residual electric quantity is larger than a preset electric quantity threshold value, determining the vehicle running distance when the power battery to be heated is heated to the target temperature based on the temperature of the power battery to be heated; and finally, determining whether to start a heating source to heat the power battery to be heated or not based on the vehicle running distance and the distance of the route to be driven. According to the invention, when determining whether the heating source is started to heat the power battery to be heated, the factors in various aspects such as the residual electric quantity of the power battery to be heated, the distance of the route to be driven, the vehicle driving distance when the power battery to be heated is heated to the target temperature and the like are considered, the balance of the driving range, the dynamic property and the service life of the power battery can be well balanced, the practicability is good, the intention of a driver is met, and the technical problem that the balance of the driving range, the dynamic property and the service life of the power battery cannot be realized by the conventional strategy for heating the power battery and the practicability is poor is solved.
The above-mentioned contents briefly introduce the heating method of the power battery of the present invention, and the details related thereto are described in detail below.
In an alternative embodiment of the present invention, referring to fig. 2, the method further comprises:
and step S112, if the distance of the route to be traveled is not obtained, determining whether to start a heating source to heat the power battery to be heated or not based on the temperature of the power battery to be heated and a preset temperature threshold.
In the embodiment of the invention, if the distance of the route to be driven is not acquired, it is indicated that the user does not set navigation information or the navigation system has a fault, at this time, whether the heating source is started to heat the power battery to be heated is determined based on the temperature of the power battery to be heated and a preset temperature threshold.
Specifically, if the temperature of the power battery to be heated is less than a preset temperature threshold, the heating source is started to heat the power battery to be heated; on the contrary, the power cell to be heated is not heated. The heating strategy is the traditional heating strategy of the power battery.
In an alternative embodiment of the present invention, the process of determining the vehicle travel distance, which is the time when the power battery to be heated is heated to the target temperature, based on the temperature of the power battery to be heated at step S106, includes the steps of (1) and (2) as follows:
(1) acquiring an ambient temperature;
(2) and determining the vehicle running distance when the power battery to be heated is heated to the target temperature according to the ambient temperature and the temperature of the power battery to be heated.
The method specifically comprises the following steps: determining the temperature rise rate of the power battery to be heated according to the environment temperature and a preset temperature rise rate table, wherein the preset temperature rise rate table is the corresponding relation between the environment temperature and the temperature rise rate; determining the time required for heating the power battery to be heated to the target temperature according to the temperature rise rate of the power battery to be heated and the temperature of the power battery to be heated; and determining the running distance of the vehicle according to the time and the speed information of the power battery to be heated.
Specifically, the temperature rise rate of the power battery to be heated is obtained by looking up a table according to a preset temperature rise rate table, the time required for heating the power battery to be heated from the current temperature to the target temperature is calculated according to the temperature rise rate, and finally the vehicle running distance is determined according to the time and the vehicle speed information of the power battery to be heated (the navigation information sent by the navigation system comprises the vehicle speed information).
In an alternative embodiment of the present invention, referring to fig. 3, the step S110 of determining whether to turn on the heating source to heat the power battery to be heated based on the vehicle driving distance and the distance of the route to be driven includes the following steps:
step S301, if the vehicle driving distance is less than the distance of the route to be driven, a heating source is started to heat a power battery to be heated;
when the vehicle driving distance is smaller than the distance of the route to be driven, the vehicle still needs to continue to drive after the power battery to be heated is heated, and then in order to ensure the dynamic property of long-distance driving, the heating source needs to be started to heat the power battery to be heated.
In the embodiment of the present invention, the heating source may be a ptc (positive Temperature coefficient) heater on the vehicle, a ceramic heater, or a heater in other forms, and the embodiment of the present invention does not specifically limit the heater.
And step S302, if the vehicle driving distance is not less than the distance of the route to be driven, the power battery to be heated is not heated.
In the case where the vehicle travel distance is not less than the distance of the route to be traveled, which means that the vehicle has arrived at the destination and stopped traveling as soon as it is heated to the target temperature or has not been heated to the target temperature, the power battery to be heated is not heated.
The heating method of the power battery improves the traditional single-control heat management scheme, realizes the intelligent selection of the heating scheme of the battery according to the actual distance of the route to be driven and the residual electric quantity of the power battery to be heated, well balances the dynamic property, the driving range and the service life of the battery, accords with the intention of a driver, and has good practicability.
Example two:
the embodiment of the present invention further provides a heating device for a power battery, where the heating device for a power battery is mainly used for executing the heating method for a power battery provided in the embodiment of the present invention, and the following description specifically describes the heating device for a power battery provided in the embodiment of the present invention.
Fig. 4 is a schematic diagram of a heating device for a power battery according to an embodiment of the present invention, and as shown in fig. 4, the heating device for a power battery is applied to a power battery management system, and mainly includes: an acquisition unit 10, a first determination unit 20 and a second determination unit 30, wherein:
an obtaining unit 10, configured to obtain a remaining power amount of the power battery to be heated, a temperature of the power battery to be heated, and a distance of a route to be traveled, where the distance of the route to be traveled is a distance of a route between a current position of the vehicle and a destination obtained through a navigation system;
a first determination unit 20 for determining a vehicle travel distance when the power battery to be heated is heated to a target temperature based on a temperature of the power battery to be heated in a case where the remaining capacity is greater than a preset capacity threshold;
and a second determining unit 30, configured to determine whether to turn on the heating source to heat the power battery to be heated based on the vehicle travel distance and the distance of the route to be traveled.
In an embodiment of the present invention, a heating device for a power battery is provided, which is applied to a power battery management system, and includes: firstly, acquiring the residual electric quantity of a power battery to be heated, the temperature of the power battery to be heated and the distance of a route to be traveled; then, under the condition that the residual electric quantity is larger than a preset electric quantity threshold value, determining the vehicle running distance when the power battery to be heated is heated to the target temperature based on the temperature of the power battery to be heated; and finally, determining whether to start a heating source to heat the power battery to be heated or not based on the vehicle running distance and the distance of the route to be driven. According to the invention, when determining whether the heating source is started to heat the power battery to be heated, the factors in various aspects such as the residual electric quantity of the power battery to be heated, the distance of the route to be driven, the vehicle driving distance when the power battery to be heated is heated to the target temperature and the like are considered, the balance of the driving range, the dynamic property and the service life of the power battery can be well balanced, the practicability is good, the intention of a driver is met, and the technical problem that the balance of the driving range, the dynamic property and the service life of the power battery cannot be realized by the conventional strategy for heating the power battery and the practicability is poor is solved.
Optionally, the apparatus further comprises: and the third determining unit is used for not heating the thermal power battery to be heated under the condition that the residual electric quantity is not greater than the preset electric quantity threshold value.
Optionally, the apparatus is further configured to: and if the distance of the route to be driven is not acquired, determining whether to start a heating source to heat the power battery to be heated or not based on the temperature of the power battery to be heated and a preset temperature threshold.
Optionally, the first determining unit is further configured to: acquiring an ambient temperature; and determining the vehicle running distance when the power battery to be heated is heated to the target temperature according to the ambient temperature and the temperature of the power battery to be heated.
Optionally, the first determining unit is further configured to: determining the temperature rise rate of the power battery to be heated according to the environment temperature and a preset temperature rise rate table, wherein the preset temperature rise rate table is the corresponding relation between the environment temperature and the temperature rise rate; determining the time required for heating the power battery to be heated to the target temperature according to the temperature rise rate of the power battery to be heated and the temperature of the power battery to be heated; and determining the running distance of the vehicle according to the time and the speed information of the power battery to be heated.
Optionally, the second determining unit is further configured to: if the vehicle running distance is less than the distance of the route to be run, starting a heating source to heat a power battery to be heated; and if the vehicle driving distance is not less than the distance of the route to be driven, the power battery to be heated is not heated.
The device provided by the embodiment of the present invention has the same implementation principle and technical effect as the method embodiments, and for the sake of brief description, reference may be made to the corresponding contents in the method embodiments without reference to the device embodiments.
As shown in fig. 5, an electronic device 600 provided in an embodiment of the present application includes: a processor 601, a memory 602 and a bus, wherein the memory 602 stores machine-readable instructions executable by the processor 601, when the electronic device is operated, the processor 601 and the memory 602 communicate with each other through the bus, and the processor 601 executes the machine-readable instructions to execute the steps of the heating method of the power battery.
Specifically, the memory 602 and the processor 601 can be general memories and processors, which are not limited to the specific embodiments, and the heating method of the power battery can be executed when the processor 601 runs a computer program stored in the memory 602.
The processor 601 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 601. The Processor 601 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 602, and the processor 601 reads the information in the memory 602 and completes the steps of the method in combination with the hardware thereof.
Corresponding to the heating method of the power battery, the embodiment of the application also provides a computer readable storage medium, wherein the computer readable storage medium stores machine executable instructions, and when the computer executable instructions are called and executed by a processor, the computer executable instructions cause the processor to execute the steps of the heating method of the power battery.
The heating device of the power battery provided by the embodiment of the application can be specific hardware on the device or software or firmware installed on the device. The device provided by the embodiment of the present application has the same implementation principle and technical effect as the foregoing method embodiments, and for the sake of brief description, reference may be made to the corresponding contents in the foregoing method embodiments where no part of the device embodiments is mentioned. It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the foregoing systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
For another example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments provided in the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product, stored in a storage medium, including several instructions for causing an electronic device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method for heating a power battery according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a portable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other media capable of storing program codes.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures, and moreover, the terms "first," "second," "third," etc. are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used for illustrating the technical solutions of the present application, but not limiting the same, and the scope of the present application is not limited thereto, and although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the scope of the embodiments of the present application. Are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (7)
1. A heating method of a power battery is applied to a power battery management system, and is characterized by comprising the following steps:
acquiring the residual electric quantity of a power battery to be heated, the temperature of the power battery to be heated and the distance of a route to be traveled, wherein the distance of the route to be traveled is the distance of the route between the current position of the vehicle and the destination obtained through a navigation system;
determining a vehicle running distance when the power battery to be heated is heated to a target temperature based on the temperature of the power battery to be heated when the remaining electric quantity is greater than a preset electric quantity threshold value;
determining whether to start a heating source to heat the power battery to be heated or not based on the vehicle running distance and the distance of the route to be driven;
wherein determining a vehicle travel distance as the power battery to be heated is heated to a target temperature based on the temperature of the power battery to be heated includes:
acquiring an ambient temperature;
determining the temperature rise rate of the thermal power battery to be heated according to the environment temperature and a preset temperature rise rate table, wherein the preset temperature rise rate table is a corresponding relation between the environment temperature and the temperature rise rate;
determining the time required by the power battery to be heated to the target temperature according to the temperature rise rate of the power battery to be heated and the temperature of the power battery to be heated;
determining the vehicle running distance according to the time and the vehicle speed information of the power battery to be heated;
wherein determining whether to turn on a heating source to heat the power battery to be heated based on the vehicle travel distance and the distance of the route to be traveled comprises:
if the vehicle running distance is smaller than the distance of the route to be run, starting the heating source to heat the power battery to be heated;
and if the vehicle running distance is not less than the distance of the route to be driven, the power battery to be heated is not heated.
2. The method of claim 1, further comprising:
and under the condition that the residual electric quantity is not greater than the preset electric quantity threshold value, the power battery to be heated is not heated.
3. The method of claim 1, further comprising:
and if the distance of the route to be driven is not acquired, determining whether to start the heating source to heat the power battery to be heated or not based on the temperature of the power battery to be heated and a preset temperature threshold value.
4. A heating device for a power battery is applied to a power battery management system, and the device comprises:
the system comprises an acquisition unit, a processing unit and a control unit, wherein the acquisition unit is used for acquiring the residual electric quantity of a power battery to be heated, the temperature of the power battery to be heated and the distance of a route to be traveled, and the distance of the route to be traveled is the distance of the route between the current position of a vehicle and a destination, which is acquired through a navigation system;
a first determination unit configured to determine a vehicle travel distance when the power battery to be heated is heated to a target temperature based on a temperature of the power battery to be heated, in a case where the remaining capacity is greater than a preset capacity threshold;
the second determining unit is used for determining whether to start a heating source to heat the power battery to be heated or not based on the vehicle running distance and the distance of the route to be driven;
the first determination unit is further configured to: acquiring an ambient temperature; determining the temperature rise rate of the thermal power battery to be heated according to the environment temperature and a preset temperature rise rate table, wherein the preset temperature rise rate table is a corresponding relation between the environment temperature and the temperature rise rate; determining the time required for heating the power battery to be heated to a target temperature according to the temperature rise rate of the power battery to be heated and the temperature of the power battery to be heated; determining the vehicle running distance according to the time and the vehicle speed information of the power battery to be heated;
wherein the second determination unit is further configured to: if the vehicle running distance is smaller than the distance of the route to be run, starting the heating source to heat the power battery to be heated; and if the vehicle running distance is not less than the distance of the route to be driven, the power battery to be heated is not heated.
5. The apparatus of claim 4, further comprising:
and the third determining unit is used for not heating the power battery to be heated under the condition that the residual electric quantity is not greater than the preset electric quantity threshold value.
6. An electronic device comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and wherein the processor implements the steps of the method of any of claims 1 to 3 when executing the computer program.
7. A computer readable storage medium having stored thereon machine executable instructions which, when invoked and executed by a processor, cause the processor to execute the method of any of claims 1 to 3.
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| CN114572060B (en) * | 2021-03-29 | 2024-08-13 | 长城汽车股份有限公司 | Battery pack thermal management method and device and vehicle |
| CN113492663B (en) * | 2021-07-22 | 2023-03-21 | 上汽通用五菱汽车股份有限公司 | Power battery heating method, vehicle and readable storage medium |
| CN113752915B (en) * | 2021-08-23 | 2023-05-12 | 合众新能源汽车股份有限公司 | Intelligent battery thermal management method |
| CN114475363B (en) * | 2022-01-28 | 2023-05-23 | 重庆长安新能源汽车科技有限公司 | Power battery driving heating control method and device and electric automobile |
| CN114824580B (en) * | 2022-05-09 | 2024-06-14 | 浙江吉利控股集团有限公司 | Power battery heating control method, system, vehicle and storage medium |
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