CN112895969B

CN112895969B - Method and device for controlling replacement of battery pack of electric vehicle and storage medium

Info

Publication number: CN112895969B
Application number: CN202110230949.0A
Authority: CN
Inventors: 刘永灼; 伍战平; 李玉魁
Original assignee: Evergrande New Energy Automobile Investment Holding Group Co Ltd
Current assignee: Evergrande New Energy Automobile Investment Holding Group Co Ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2021-11-23
Anticipated expiration: 2041-03-02
Also published as: CN112895969A

Abstract

The application discloses a method, equipment and a storage medium for controlling replacement of a battery pack of an electric vehicle. The method for controlling the replacement of the battery pack of the electric automobile comprises the following steps: receiving a power swapping information reading request of a power swapping station; and sending standard battery pack power change information of the electric automobile to the power change station, wherein the electric automobile is driven by at least one standard battery pack, the standard battery pack power change information is used for determining a battery pack carrying scheme meeting the cruising mileage required by the user and the standard battery pack power change information by the power change station, and the battery pack carrying scheme at least comprises the number of the standard battery packs. According to the method and the device, the optimized combination of the standard battery pack is determined according to the required endurance mileage of the user, so that the requirements of the user in different use scenes such as short, medium and long distances are met, the optimization of the weight and the energy consumption of the whole vehicle in different use scenes is realized, and the trip requirements of the user are met in the most economical mode.

Description

Method and device for controlling replacement of battery pack of electric vehicle and storage medium

Technical Field

The application relates to the related technical field of electric automobiles, in particular to a battery pack replacement control method for an electric automobile, electronic equipment, an intelligent battery replacement vehicle platform, a battery pack replacement control method for a battery replacement station, electronic equipment and a storage medium.

Background

With the continuous development of new energy technology, especially the rapid progress of battery technology, new energy automobiles are accepted and accepted by more and more consumers. Research shows that the use scenes of new energy automobiles can be roughly divided into three types: short distance, middle distance and long distance, wherein the round-trip distance of the short distance is within 200km, and the main use scenes comprise shopping, getting on and off duty and delivering children in urban areas; the distance between the two paths is between 200km and 400km, and the main use scene is the tour around the city; the long-distance round-trip distance is more than 400km, and the main use scenes comprise a foreign trip or a tour. The occurrence probabilities of the three usage scenarios are respectively: short distance 70%, middle distance 20%, long distance 10%. In order to solve 10% of long-distance requirements of users, new energy automobile manufacturers must improve the endurance mileage of electric vehicles in a battery stacking mode based on the existing battery technology, so that the price of the whole vehicle is high. Meanwhile, the batteries are continuously stacked to increase the weight of the whole automobile, so that the energy consumption of the whole automobile is increased, and the energy-saving and environment-friendly effects of the new energy automobile are against. Another problem that limits the popularization of new energy vehicles is charging, including convenience and charging time of charging, and although governments and enterprises invest a lot of resources for the construction of charging facilities in these years, the charging convenience of new energy vehicles is greatly improved, but still far away from the convenience of fuel vehicle refueling, and meanwhile, the problem of overlong charging time is still unsolved in a short time due to the technical bottleneck of the existing battery industry.

The prior art attempts to solve the pain point or the problem existing in the new energy automobile by replacing the battery pack.

The prior art solves the problem of quick replacement of a battery pack by improving the structure of an automobile chassis. However, this approach merely increases the replacement speed of the battery pack, which still does not satisfy the demand of the consumer for the endurance mileage.

In the prior art, as long-distance requirements of users need to be met, the battery is added to improve the endurance mileage of the electric vehicle, and the weight and energy consumption of the whole vehicle are greatly improved for 10% of scene requirements, so that the phenomenon of high energy consumption which is not economical in medium-short distance running occurs.

Disclosure of Invention

Therefore, it is necessary to provide a battery pack replacement control method for an electric vehicle, an electronic device, an intelligent battery pack replacement vehicle platform, a battery pack replacement control method for a battery replacement station, an electronic device, and a storage medium, for solving the technical problems that the prior art does not consider a use scenario and has a high energy consumption phenomenon during medium-short distance driving.

The application provides a method for controlling replacement of a battery pack of an electric vehicle, which comprises the following steps:

receiving a power swapping information reading request of a power swapping station;

and sending standard battery pack power change information of the electric automobile to the power change station, wherein the electric automobile is driven by at least one standard battery pack, the standard battery pack power change information is used by the power change station for determining a battery pack carrying scheme meeting the requirement endurance mileage of a user and the standard battery pack power change information, and the battery pack carrying scheme at least comprises the number of the standard battery packs.

Further, the sending the standard battery pack power change information of the electric vehicle to the power change station specifically includes:

obtaining allowable loading parameters of a standard battery pack of the electric automobile;

and sending the standard battery pack power change information to the power change station, wherein the standard battery pack power change information at least comprises standard battery pack allowable loading parameters of the electric automobile, and the standard battery pack power change information is used by the power change station for determining a battery pack carrying scheme meeting the user required endurance mileage and the standard battery pack allowable loading parameters.

Further:

the allowable loading parameters of the standard battery pack of the electric automobile are as follows: the type of the standard battery pack which can be loaded by the electric automobile and the maximum loading number of each type of standard battery pack which can be loaded by the electric automobile; or,

the allowable loading parameters of the standard battery pack of the electric automobile are as follows: the vehicle type of the electric automobile.

Further, the sending the standard battery pack power change information of the electric vehicle to the power change station specifically further includes:

obtaining a position optimal solution of a standard battery pack combination allowed by the electric vehicle, wherein the position optimal solution of the standard battery pack combination is an optimal position, preset by each standard battery pack included in the standard battery pack combination, on the electric vehicle, and the standard battery pack power change information further includes: the position optimal solution of the standard battery pack combination allowed by the electric automobile is used by the battery replacement station for determining the position of each standard battery pack on the electric automobile in the battery pack carrying scheme.

Still further, the sending the standard battery pack power change information of the electric vehicle to the power change station specifically further includes:

acquiring the number of standard battery packs loaded by the electric automobile, wherein the standard battery pack power change information further comprises: the number of the standard battery packs loaded by the electric automobile is used by the battery replacement station for judging whether a battery pack loading scheme needs to be provided.

The application provides a control electronic equipment is changed to electric automobile battery package includes: at least one processor; and the number of the first and second groups,

a memory communicatively coupled to at least one of the processors; wherein,

the memory stores instructions executable by at least one of the processors to enable the at least one of the processors to:

the battery pack replacement control method as described above is performed.

The application provides an intelligence trades whole car platform of electric, include: the battery pack replacement control system comprises a plurality of parallel battery bins arranged on an electric automobile, the electric automobile battery pack replacement control electronic equipment and a communication device, wherein each battery bin is internally provided with a standard battery pack interface which is detachably connected with a standard battery pack, the standard battery pack interfaces of the battery bins are connected in parallel and then electrically connected with a power system of the electric automobile, the standard battery pack interfaces are in communication connection with the electric automobile battery pack replacement control electronic equipment, and the electric automobile battery pack replacement control electronic equipment is in communication connection with the communication device.

Further, still include a plurality of with control electronic equipment communication connection's battery management system is changed to electric automobile battery package and/or with control electronic equipment communication connection's battery cuts off the unit, each to electric automobile battery package the battery storehouse be provided with battery management system plug connector that battery management system electricity is connected and/or with battery that the battery cuts off the unit plug connector that the unit electricity is connected, each battery management system that battery management system plug connector is connected is independent of the battery management system that other battery management system plug connectors are connected, each battery cuts off the unit that the unit plug connector is connected and is independent of the battery that other batteries cut off the unit plug connector and connect and cuts off the unit.

The application provides a battery pack replacement control method for a battery replacement station, which comprises the following steps:

sending a battery replacement information reading request to an electric automobile driven by at least one standard battery pack;

receiving standard battery pack power change information returned by the electric automobile, acquiring a user demand endurance mileage, and determining a battery pack carrying scheme meeting the user demand endurance mileage and the standard battery pack power change information according to the user demand endurance mileage and the standard battery pack power change information, wherein the battery pack carrying scheme at least comprises the number of standard battery packs;

and displaying the battery pack carrying scheme.

Further, the receiving of the standard battery pack power change information returned by the electric vehicle to obtain a user demand mileage, and determining a battery pack carrying scheme that meets the user demand mileage and the standard battery pack power change information according to the user demand mileage and the standard battery pack power change information specifically includes:

receiving standard battery pack power change information returned by the electric automobile, wherein the standard battery pack power change information comprises standard battery pack allowable loading parameters of the electric automobile;

acquiring the required endurance mileage of a user, and determining the required endurance mileage of the battery according to the required endurance mileage of the user;

determining all battery pack combination schemes meeting allowable loading parameters of standard battery packs of the electric automobile, wherein the battery pack combination schemes at least comprise the number of the standard battery packs, and selecting the battery pack combination scheme of which the total cruising mileage of the included standard battery packs meets the battery requirement cruising mileage from all the battery pack combination schemes as a battery pack carrying scheme meeting the user requirement cruising mileage and the standard battery pack power change information.

Further, the selecting a battery pack combination scheme, in which the total cruising range of the included standard battery pack meets the battery requirement cruising range, from all battery pack combination schemes as a battery pack carrying scheme meeting the user requirement cruising range and the standard battery pack power change information specifically includes:

selecting a battery pack combination scheme with the total endurance mileage of the included standard battery packs larger than the battery requirement endurance mileage from all battery pack combination schemes as a battery pack combination scheme to be screened;

and selecting the battery pack combination scheme which has the minimum difference value between the total endurance mileage of the included standard battery packs and the required battery endurance mileage and the minimum number of the included standard battery packs from all the battery pack combination schemes to be screened as the battery pack carrying scheme meeting the required endurance mileage of the user and the electricity change information of the standard battery packs.

Still further, the acquiring the user demand endurance mileage and determining the battery demand endurance mileage according to the user demand endurance mileage specifically include:

acquiring the required endurance mileage, the driving road condition and the air conditioning mode of a user;

determining an energy consumption coefficient according to the driving road condition and the air conditioning mode;

and calculating the battery requirement endurance mileage according to the user requirement endurance mileage and the energy consumption coefficient.

Further, the received standard battery pack power change information further includes a position optimal solution of a standard battery pack combination allowed by the electric vehicle, where the position optimal solution of the standard battery pack combination is an optimal position, preset for each standard battery pack included in the standard battery pack combination, on the electric vehicle, and the selecting, from all battery pack combination schemes, a battery pack combination scheme in which a total cruising range of the included standard battery packs meets the battery demand cruising range is used as a battery pack loading scheme that meets the user demand cruising range and the standard battery pack power change information specifically includes:

selecting a battery pack combination scheme, in which the total endurance mileage of the included standard battery pack meets the battery requirement endurance mileage, from all battery pack combination schemes as a battery pack combination scheme to be determined;

determining the position of each standard battery pack on the electric automobile, wherein the standard battery pack combination scheme to be determined comprises the standard battery pack combination;

and taking the battery pack combination scheme of the position to be determined and the position of each standard battery pack on the electric automobile as a battery pack carrying scheme for meeting the driving mileage required by the user and the power change information of the standard battery pack.

Still further, the received standard battery pack power change information further includes the number of standard battery packs loaded by the electric vehicle, and the battery pack combination scheme that the total mileage of the included standard battery packs meets the battery requirement mileage is selected from all battery pack combination schemes to serve as the battery pack loading scheme that meets the user requirement mileage and the standard battery pack power change information specifically includes:

if the number of the standard battery packs included in the battery pack combination scheme at the position to be determined is consistent with the number of the standard battery packs loaded by the electric automobile, judging that a battery pack loading scheme is not needed to be provided, and ending; otherwise

Determining that a battery pack loading scheme needs to be provided, and determining the position of each standard battery pack on the electric automobile in the battery pack combination scheme to be determined from the optimal position solution of the standard battery pack combination allowed by the electric automobile;

The application provides a trade power station battery package and change control electronic equipment includes: at least one processor; and the number of the first and second groups,

a memory communicatively coupled to at least one of the processors; wherein,

and executing the battery pack replacement control method of the battery replacement station.

The present application provides a storage medium storing computer instructions for performing all the steps of the battery pack replacement control method for an electric vehicle as described above when the computer executes the computer instructions.

The present application provides a storage medium storing computer instructions for performing all the steps of the battery pack replacement control method for a battery swap station as described above when the computer executes the computer instructions.

According to the method and the device, the optimized combination of the standard battery pack is determined according to the requirement endurance mileage of the user, so that the requirements of the user in different short, medium and long-distance use scenes are met, the optimization of the weight and the energy consumption of the whole vehicle under different use scenes is realized, the trip requirement of the user is met in a most economical mode, and the high energy consumption phenomenon of 'carrying a big bag with a short distance' is avoided. Meanwhile, the optimal installation arrangement of the standard battery pack realizes the optimal distribution of the front and rear axle loads of the whole vehicle, and ensures the performance of the whole vehicle.

Drawings

Fig. 1 is a flowchart illustrating a method for controlling replacement of a battery pack of an electric vehicle according to an embodiment of the present disclosure;

fig. 2 is a flowchart illustrating a method for controlling replacement of a battery pack of an electric vehicle according to another embodiment of the present application;

FIG. 3 is a schematic diagram of standard battery pack interface labels;

fig. 4 is a schematic diagram of a hardware structure of an electric vehicle battery pack replacement control electronic device according to an embodiment of the present application;

fig. 5 is a schematic diagram of an intelligent battery replacement vehicle platform in an embodiment of the present application;

fig. 6 is a schematic diagram of different intelligent battery replacement vehicle platforms;

fig. 7 is a flowchart illustrating a method for controlling replacement of a battery pack in a power swapping station according to an embodiment of the present application;

fig. 8 is a flowchart illustrating a method for controlling replacement of a battery pack in a replacement station according to another embodiment of the present disclosure;

fig. 9 is a schematic diagram of a hardware structure of a replacement control electronic device for a battery pack of a replacement station in an embodiment of the present application;

fig. 10 is a flowchart illustrating a battery pack replacement method according to an embodiment of the present application.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples.

As shown in fig. 1, an embodiment of the present application provides a method for controlling replacement of a battery pack of an electric vehicle, including:

step S101, receiving a power swapping information reading request of a power swapping station;

step S102, standard battery pack power change information of the electric automobile is sent to the power change station, the electric automobile is driven by at least one standard battery pack, the standard battery pack power change information is used by the power change station for determining a battery pack carrying scheme meeting the driving mileage required by a user and the standard battery pack power change information, and the battery pack carrying scheme at least comprises the number of the standard battery packs.

Specifically, the present application can be applied to a vehicle Electronic Control Unit (ECU). For example, the method is applied to the electronic device for controlling replacement of the battery pack of the electric vehicle with the intelligent vehicle-charging platform.

When a power swapping information reading request of the power swapping station is received, step S101 is triggered. The battery swapping information reading request can be sent to the electric automobile by the battery swapping device of the battery swapping station after the electric automobile is in communication connection with the battery swapping station. The electric vehicle receives the battery replacement information reading request, and step S101 is triggered. The communication connection mode can be a wired connection mode or a wireless connection mode. And then, executing the step S102, and sending the standard battery pack power change information of the electric automobile to the power change station. The electric vehicle is driven by at least one standard battery pack. The standard battery packs are the most basic energy storage units, each standard battery pack can independently and normally drive the vehicle, the capacity of each standard battery pack is consistent within an error range, and the standard battery packs have complete universality and interchangeability in the same vehicle type (along with the continuous perfection of relevant national standards and industry standards, the universality and the interchange among different brands of vehicle types can be realized in the future); the standard battery pack has certain energy storage capacity and can provide corresponding endurance mileage for the vehicle. In practical application, the size and the capacity of the standard battery pack can be divided and defined according to the characteristics of different vehicle types, so that the combination and the collocation of the standard battery pack are facilitated. Furthermore, the same vehicle type can also carry standard battery packs with different specifications (capacity and size), for example, two specifications of battery packs are available: the combination of the standard battery pack A (25kWh), the standard battery pack B (18kWh) and the electric vehicle may be A + A, A + A + A, A + B, A + A + B, etc.

In one embodiment, the standard battery pack has a plurality of types, and the battery pack installation scheme at least includes the types of the standard battery packs and the number of the standard battery packs of each type.

The adjustment of the endurance mileage of the whole vehicle can be realized by increasing and decreasing the number of the standard battery packs, and the standard battery packs can be quickly replaced or increased and decreased through the battery replacement station.

In an electric vehicle, standard Battery packs are connected in parallel, each standard Battery pack is provided with an independent Battery Management System (BMS) and a Battery Disconnection Unit (BDU), and independent power supply to the vehicle is realized.

After the standard battery pack power change information is sent to the power change station, the power change station determines a battery pack carrying scheme meeting the user requirement endurance mileage and the standard battery pack power change information according to the user requirement endurance mileage and the standard battery pack power change information, wherein the battery pack carrying scheme at least comprises the number of standard battery packs.

The required endurance mileage of the user can be input by the user on an input interface provided by the power conversion station. The user demand endurance mileage can also be sent to the single-change station by the user through a mobile terminal in communication connection with the single-change station. Mobile terminals include, but are not limited to: smart phones, vehicle screens.

The battery pack carrying scheme at least comprises the number of standard battery packs, and after the battery pack carrying scheme is determined, the battery pack carrying scheme can inform a worker of the battery replacing station, and the worker replaces the battery of the electric automobile according to the battery pack carrying scheme.

According to the method and the device, the optimized combination of the standard battery pack is determined according to the required endurance mileage of the user, so that different use scenes of the user in short distance, medium distance and long distance are met, the optimization of the whole vehicle weight and the energy consumption under different use scenes is realized, the trip requirement of the user is met in a most economical mode, and the high energy consumption phenomenon of 'carrying a big pack on the short distance' is avoided.

Fig. 2 shows a method for controlling replacement of a battery pack of an electric vehicle according to an embodiment of the present application, including:

in step S201, a power swapping information reading request of a power swapping station is received.

Step S202, obtaining allowable loading parameters of standard battery packs of the electric vehicle, a position optimal solution of standard battery pack combinations allowed by the electric vehicle, and the number of the standard battery packs loaded by the electric vehicle, wherein the position optimal solution of the standard battery pack combinations is an optimal position, preset by each standard battery pack included in the standard battery pack combinations, on the electric vehicle.

In one embodiment, the standard battery pack allowable loading parameters of the electric vehicle are as follows: the type of the standard battery pack which can be loaded by the electric automobile, and the maximum loading quantity of each type of standard battery pack which can be loaded by the electric automobile; or,

Step S203, sending the standard battery pack power change information to the power change station, where the standard battery pack power change information at least includes a standard battery pack allowable loading parameter of the electric vehicle, a position optimal solution of a standard battery pack combination allowed by the electric vehicle, and the number of standard battery packs loaded by the electric vehicle, the electric vehicle is driven by at least one standard battery pack, the standard battery pack power change information is used by the power change station to determine a battery pack loading scheme meeting a user required driving range and the standard battery pack allowable loading parameter, the battery pack loading scheme at least includes the number of standard battery packs, and the position optimal solution of the standard battery pack combination allowed by the electric vehicle is used by the power change station to determine a position of each standard battery pack included in the battery pack loading scheme on the electric vehicle, the number of standard battery packs loaded by the electric automobile is used for judging whether a battery pack loading scheme needs to be provided or not by the battery replacement station.

Specifically, the standard battery pack switching information sent to the switching station comprises the type of the standard battery packs capable of being loaded by the switching vehicle model, the maximum loading number, the number of the loaded standard battery packs, the installation position information of the loaded standard battery packs on the vehicle and all possible position optimal solutions for loading the standard battery packs of the vehicle model.

The type and the maximum loading quantity of the standard battery packs which can be loaded by the battery replacement type can be directly sent by the electric automobile, the automobile type information can also be sent by the electric automobile, and the type and the maximum loading quantity of the standard battery packs which can be loaded by the battery replacement type are determined by the battery replacement station according to the automobile type information.

The battery replacing equipment of the battery replacing station can read the battery replacing information of the standard battery pack; a client inputs required mileage information according to a trip demand; the battery replacement station calculates the type and the quantity delta of the required standard battery packs according to the mileage information input by the customer, then compares and judges the loaded standard battery pack quantity information in the read standard battery pack battery replacement information with the calculation result, and only performs battery replacement operation if the loaded standard battery pack quantity is matched with the customer requirement; and if not, rearranging and installing the battery pack according to the read optimal solution of the standard battery pack arrangement scheme of the vehicle model and the combination of the delta value. Each standard battery pack interface of the intelligent battery replacement vehicle platform is labeled as shown in fig. 3, and includes K1, K2, K3, … …, KN. The optimal solution of the position of the standard battery pack is the permutation and combination of the labels K1-KN, and the permutation and combination is determined in the vehicle development process and is stored in the standard battery pack power change information. The acquisition of the optimal solution of the standard battery pack position can be obtained by a table look-up method, namely, for different vehicle types, the position of each standard battery pack on the electric vehicle, which is included in all battery pack carrying schemes allowed by the vehicle type, is calibrated in advance. And after the number of the standard battery packs included in the battery pack loading scheme is determined, determining the position of each standard battery pack included in the battery pack loading scheme on the electric automobile. For example, if there is one standard battery pack, the standard battery pack interface label in the middle of the vehicle is provided, if there are two standard battery packs, the standard battery pack interface label in the front and rear axle of the vehicle is provided, and if there are three standard battery packs, the standard battery pack interface label in the front and rear axle and the middle is provided.

In one embodiment, the standard battery packs are of a plurality of types, and the number of the standard battery packs loaded by the electric vehicle is equal to the number of the standard battery packs of each type loaded by the electric vehicle.

According to the embodiment, the battery pack carrying scheme which meets the driving mileage required by a user and allows the standard battery pack to carry parameters is realized by providing the standard battery pack power change information for the power change station, and meanwhile, the position optimal solution of the standard battery pack combination allowed by the electric automobile is provided, so that the optimal installation and arrangement of the standard battery pack are realized, the optimal distribution of the front and rear axle loads of the whole automobile is realized, and the performance of the whole automobile is ensured. Finally, the number of standard battery packs loaded by the electric automobile is provided, so that whether a battery pack loading scheme needs to be provided or not is judged, and invalid calculation is reduced.

Fig. 4 is a schematic diagram of a hardware structure of an electric vehicle battery pack replacement control electronic device according to an embodiment of the present application, including:

at least one processor 401; and the number of the first and second groups,

a memory 402 communicatively coupled to at least one of the processors 401; wherein,

the memory 402 stores instructions executable by at least one of the processors 401, the instructions being executable by at least one of the processors 401 to enable at least one of the processors 401 to:

the battery pack replacement control method of the electric vehicle is executed.

The Electronic device may be a vehicle Electronic Control Unit (ECU). For example, an electric vehicle battery pack replacement control electronic device of an intelligent battery replacement vehicle platform arranged on an electric vehicle. In fig. 4, one processor 401 is taken as an example.

The electronic device may further include: an input device 403 and a display device 404.

The processor 401, the memory 402, the input device 403, and the display device 404 may be connected by a bus or other means, and are illustrated as being connected by a bus.

The memory 402, which is a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as program instructions/modules corresponding to the battery pack replacement control method of the electric vehicle in the embodiment of the present application, for example, the method flow shown in fig. 1. The processor 401 executes various functional applications and data processing by running the nonvolatile software programs, instructions and modules stored in the memory 402, that is, implements the battery pack replacement control method of the electric vehicle in the above-described embodiment.

The memory 402 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the electric vehicle battery pack replacement control method, and the like. Further, the memory 402 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, the memory 402 may optionally include a memory remotely located from the processor 401, and these remote memories may be connected via a network to a device that performs the electric vehicle battery pack replacement control method. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 403 may receive an input of a user click and generate signal inputs related to user settings and function control of the battery pack replacement control method of the electric vehicle. The display device 404 may include a display screen or the like.

When the one or more modules are stored in the memory 402 and executed by the one or more processors 401, the method for controlling replacement of the battery pack of the electric vehicle in any of the above-described method embodiments is performed.

Fig. 5 is a schematic diagram of an intelligent vehicle-swapping platform according to an embodiment of the present application, including: the battery compartment 1 that sets up a plurality of parallelly connected on electric automobile, as before electric automobile battery package change control electronic equipment 2, communication device 3, each be provided with in the battery compartment 1 and be used for can dismantling the standard battery package interface of being connected with standard battery package, it is a plurality of parallelly connected back of standard battery package interface of battery compartment 1 is connected with electric automobile's driving system electricity, standard battery package interface with electric automobile battery package change control electronic equipment 2 communication connection, electric automobile battery package change control electronic equipment 2 with communication device 3 communication connection.

Specifically, the battery compartment 1 is used for placing a standard battery pack, and a standard battery pack interface is arranged in the battery compartment 1. The interface of the standard battery pack is a socket, so that the standard battery pack is directly electrically connected with a line of a vehicle after being placed into the battery compartment 1 and installed in place. The interfaces of the standard battery packs are connected in parallel, so that the standard battery packs accommodated in each battery compartment 1 independently provide electric energy for a driving motor of the electric automobile.

The standard battery packs are the most basic energy storage units, each standard battery pack can independently and normally drive the vehicle, and the capacity of each standard battery pack is consistent within an error range. Therefore, the increase and decrease of the number of the standard battery packs can realize the adjustment of the endurance mileage of the whole vehicle, and the standard battery packs can be quickly replaced or increased and decreased through the battery replacement station.

The intelligent battery replacement vehicle platform is a carrier of standard battery packs, can carry different numbers of battery packs, and can intelligently select a carrying scheme according to the number of the carried battery packs, so that the standard battery packs can be optimally arranged, and the reasonable distribution of the front and rear axle loads of a whole vehicle is realized. The electronic device 2 for controlling replacement of the battery pack of the electric vehicle is in communication connection with the standard battery pack interface, and obtains the insertion information of the standard battery pack and the standard battery pack interface, so that the number of the loaded standard battery packs is determined. By labeling each battery compartment, the installation position information of the loaded standard battery pack on the vehicle, namely the label of each battery compartment connected with the standard battery pack, can be determined. The communication device 3 is used for communicating with the battery swapping device of the battery swapping station, sending a battery swapping information reading request of the battery swapping station to the electric vehicle battery pack replacement control electronic device 2, and sending standard battery pack replacement information of the electric vehicle battery pack replacement control electronic device 2 to the battery swapping device of the battery swapping station.

The maximum number of battery bins included in different intelligent battery replacement vehicle platforms can be different. For example, as shown in fig. 6, the vehicle is classified into a class a, a class B, and a class D according to the vehicle wheel base and the vehicle length. The maximum number of the battery bins 1 included in the intelligent battery replacement vehicle platform at different levels is different. Therefore, the maximum number of the battery bins included in the intelligent battery replacement vehicle platform is the maximum loading number of the standard battery packs of the vehicle type to which the electric vehicle belongs. The sizes of the battery bins included by different intelligent battery replacing vehicle platforms can also be different, and the types of the standard battery packs loaded by the intelligent battery replacing vehicle platforms can be limited by the sizes of the battery bins.

Finally, aiming at different scenes, a battery pack carrying scheme is obtained in the mode, and a standard battery pack is loaded on the specified battery bin 13 of the battery pack carrying scheme to supply power for the vehicle.

The battery compartment of the intelligent battery replacement vehicle platform can be arranged at different positions of the vehicle, for example, at the chassis of the vehicle body 4.

The embodiment provides an intelligent battery replacement vehicle platform, realizes the optimal combination of a standard battery pack, thereby meeting the requirements of users on different use scenes such as short distance, medium distance and long distance, realizing the optimization of vehicle weight and energy consumption under different use scenes, meeting the trip requirements of users in a most economical mode, and avoiding the high energy consumption phenomenon of 'short distance carrying with a large pack'.

In one embodiment, the Battery pack replacement control System further comprises a plurality of Battery Management Systems (BMS) 11 communicatively connected to the electric vehicle Battery pack replacement control electronic device 2, and/or a Battery Disconnection Unit (BDU) 12 communicatively connected to the electric vehicle Battery pack replacement control electronic device 2, each of the Battery compartments 1 is provided with a Battery Management System connector electrically connected to the Battery Management System 11, and/or with the battery that battery cuts off unit plug connector 12 electricity is connected cuts off the unit plug connector, each battery management system 11 that battery management system plug connector is connected is independent of the battery management system 11 that other battery management system plug connectors are connected, each battery that battery cuts off the unit plug connector and is connected cuts off unit 12 independent of the battery that other battery cut off the unit plug connector and is connected cuts off unit 12.

According to the embodiment, the independent management and independent cut-off of the standard battery pack accommodated in each battery compartment are realized by arranging the independent battery management system and the battery cut-off unit, so that the independent power supply of each standard battery pack to the electric automobile is realized.

Fig. 7 is a flowchart illustrating a method for controlling replacement of a battery pack in a power swapping station according to an embodiment of the present application, including:

step S701, sending a battery replacement information reading request to an electric automobile driven by at least one standard battery pack;

step S702, receiving standard battery pack power change information returned by the electric automobile, acquiring a required endurance mileage of a user, and determining a battery pack carrying scheme meeting the required endurance mileage of the user and the standard battery pack power change information according to the required endurance mileage of the user and the standard battery pack power change information, wherein the battery pack carrying scheme at least comprises the number of standard battery packs;

and step S703, displaying the battery pack loading scheme.

Specifically, the embodiment may be applied to a battery swapping device of a battery swapping station, the battery swapping device is in communication connection with an electric vehicle, and then step S701 is executed to send a battery swapping information reading request to the electric vehicle driven by at least one standard battery pack. The communication connection mode can be a wired connection mode or a wireless connection mode. Then, the return information of the electric automobile is waited, and when the standard battery pack power change information returned by the electric automobile is received, the step S702 is triggered to obtain the required endurance mileage of the user. The required endurance mileage of the user can be input by the user on an input interface provided by the power conversion station. The user demand endurance mileage can also be sent to the single-change station by the user through a mobile terminal in communication connection with the single-change station. Mobile terminals include, but are not limited to: smart phones, vehicle screens. And then determining a battery pack carrying scheme meeting the user requirement endurance mileage and the standard battery pack power change information according to the user requirement endurance mileage and the standard battery pack power change information, wherein the battery pack carrying scheme at least comprises the number of standard battery packs.

And finally, performing step S703 to display the battery pack carrying scheme, specifically, displaying the battery pack carrying scheme on a mobile terminal of a worker of the power swapping station by displaying the battery pack carrying scheme on a screen of the power swapping device or sending the battery pack carrying scheme to the mobile terminal of the worker, and performing power swapping on the electric vehicle by the worker according to the battery pack carrying scheme.

As shown in fig. 8, a method for controlling replacement of a battery pack in a power swapping station according to an embodiment of the present application includes:

step S801, sending a battery replacement information reading request to an electric vehicle driven by at least one standard battery pack.

Step S802, receiving standard battery pack switching information returned by the electric vehicle, wherein the standard battery pack switching information comprises standard battery pack allowable loading parameters of the electric vehicle and a position optimal solution of a standard battery pack combination allowed by the electric vehicle, and the position optimal solution of the standard battery pack combination is an optimal position, preset by each standard battery pack included in the standard battery pack combination, on the electric vehicle.

And S803, acquiring the required endurance mileage of the user, and determining the required endurance mileage of the battery according to the required endurance mileage of the user.

In one embodiment, the obtaining the required endurance mileage of the user and determining the required endurance mileage of the battery according to the required endurance mileage of the user specifically include:

Step S804, determining all battery pack combination schemes meeting the allowable loading parameters of the standard battery packs of the electric automobile, wherein the battery pack combination schemes at least comprise the number of the standard battery packs, and selecting the battery pack combination scheme of which the total endurance mileage of the included standard battery packs meets the requirement endurance mileage of the battery from all the battery pack combination schemes as the battery pack combination scheme of the position to be determined.

Step S805, if the number of the standard battery packs included in the battery pack combination scheme of the position to be determined is consistent with the number of the standard battery packs loaded on the electric automobile, determining that a battery pack loading scheme does not need to be provided, and ending; otherwise

Step S806, determining that a battery pack loading scheme needs to be provided, and determining a position of each standard battery pack included in the battery pack combination scheme to be determined on the electric vehicle from the optimal position solution of the standard battery pack combination allowed by the electric vehicle.

In one embodiment, the standard battery pack has a plurality of types, the battery pack loading scheme at least includes the types of the standard battery packs and the number of each type of standard battery pack, the number of the standard battery packs loaded by the electric vehicle is the number of each type of standard battery pack loaded by the electric vehicle, in step S805, if the number of each type of standard battery pack included in the battery pack combination scheme for the position to be determined is consistent with the number of each type of standard battery pack loaded by the electric vehicle, it is determined that the battery pack loading scheme is not needed to be provided and the method is ended, otherwise, step S806 is executed.

Step S807, the battery pack combination scheme of the position to be determined and the position of each standard battery pack on the electric automobile are used as a battery pack carrying scheme meeting the required driving mileage of the user and the standard battery pack power change information.

In one embodiment, the selecting a battery pack combination scheme in which the total driving mileage of the standard battery pack meets the required driving mileage of the battery from among all battery pack combination schemes specifically includes:

and selecting the battery pack combination scheme which has the minimum difference value between the total driving range of the included standard battery packs and the required driving range of the battery and has the minimum number of the included standard battery packs from all the battery pack combination schemes to be screened.

And step S808, displaying the battery pack carrying scheme.

Specifically, the received standard battery pack power change information comprises the type of the standard battery packs capable of being loaded by the vehicle model, the maximum loading number, the number of the loaded standard battery packs, the installation position information of the loaded standard battery packs on the vehicle and all possible optimal solutions of the positions of the loaded standard battery packs of the vehicle model.

The battery replacing equipment of the battery replacing station can read the battery replacing information of the standard battery pack; a client inputs required mileage information according to a trip demand; the battery replacement station calculates the type and the quantity delta of the required standard battery packs according to mileage information input by a customer, then compares and judges the loaded standard battery pack quantity information in the read standard battery pack battery replacement information with a calculation result, if the loaded standard battery pack quantity is matched with the customer requirement, only prompts battery replacement operation without providing a battery pack carrying scheme, and ends the process; and if not, rearranging and installing the battery pack according to the read optimal solution of the standard battery pack arrangement scheme of the vehicle model and the combination of the delta value. Each standard battery pack interface of the intelligent battery replacement vehicle platform is labeled as shown in fig. 3, and includes K1, K2, K3, … …, KN. The optimal solution of the position of the standard battery pack is the permutation and combination of the labels K1-KN, and the permutation and combination is determined in the vehicle development process and is stored in the standard battery pack power change information. The acquisition of the optimal solution of the standard battery pack position can be obtained by a table look-up method, namely, for different vehicle types, the position of each standard battery pack on the electric vehicle, which is included in all battery pack carrying schemes allowed by the vehicle type, is calibrated in advance. And after the number of the standard battery packs included in the battery pack loading scheme is determined, determining the position of each standard battery pack included in the battery pack loading scheme on the electric automobile. For example, if there is one standard battery pack, the standard battery pack interface label in the middle of the vehicle is provided, if there are two standard battery packs, the standard battery pack interface label in the front and rear axle of the vehicle is provided, and if there are three standard battery packs, the standard battery pack interface label in the front and rear axle and the middle is provided.

The battery pack combination scheme calculates the electric quantity according to the mileage and the working conditions (roads and air-conditioning modes) required by a user, takes an example that an A pack electric quantity is 28kWh, the endurance is 200km, a B pack electric quantity is 18kWh, the endurance is 100km, and a vehicle can carry at most three standard battery packs, a customer inputs an energy consumption coefficient corresponding to the urban road and the air-conditioning refrigeration is alpha-0.62 (the energy consumption coefficient is shown in table 1), takes an mileage surplus coefficient beta-0.9 (the mileage surplus coefficient is used for representing the safety factor of the battery surplus electric quantity and is between 0 and 1, the smaller the mileage required by the battery is, the mileage actually required by the battery is 466/0.62/0.9), and in all possible battery pack combinations, 466km is 400 and 500km, according to the principle of 'adjacent and more than' vehicle models, a + A + B is taken as a mounting scheme of the battery pack. The battery pack mounting scheme follows the principle of energy density priority, for example, assuming that the final mileage calculated by the system is 300km, the battery pack mounting scheme will be a + B instead of B + B.

TABLE 1 coefficient of energy consumption

Fig. 9 is a schematic diagram of a hardware structure of a replacement control electronic device for a battery pack of a power swapping station according to an embodiment of the present application, including:

at least one processor 901; and the number of the first and second groups,

a memory 902 communicatively coupled to at least one of the processors 901; wherein,

the memory 902 stores instructions executable by at least one of the processors 901, the instructions being executable by the at least one of the processors 901 to enable the at least one of the processors 901 to:

The electronic device may be a battery swapping device of a battery swapping station. Fig. 9 illustrates an example of a processor 901.

The electronic device may further include: an input device 903 and a display device 904.

The processor 901, the memory 902, the input device 903, and the display device 904 may be connected by a bus or other means, and are illustrated as being connected by a bus.

The memory 902, which is a non-volatile computer-readable storage medium, may be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as program instructions/modules corresponding to the battery replacement station battery pack replacement control method in the embodiment of the present application, for example, the method flow shown in fig. 7. The processor 901 executes various functional applications and data processing by running nonvolatile software programs, instructions and modules stored in the memory 902, that is, implements the battery pack replacement control method in the above-described embodiment.

The memory 902 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the battery pack replacement control method of the battery change station, and the like. Further, the memory 902 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, the memory 902 may optionally include a memory remotely located from the processor 901, and these remote memories may be connected via a network to a device that performs the battery pack replacement control method for the power conversion station. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 903 may receive input user clicks and generate signal inputs related to user settings and function control of the battery pack replacement control method of the power station. The display device 904 may include a display screen or the like.

When the one or more modules are stored in the memory 902 and executed by the one or more processors 901, the method for controlling battery pack replacement in any of the above-described method embodiments is performed.

An embodiment of the present application provides a storage medium, which stores computer instructions for executing all the steps of the battery pack replacement control method of an electric vehicle as described above when a computer executes the computer instructions.

An embodiment of the present application provides a storage medium, which stores computer instructions, and when a computer executes the computer instructions, the storage medium is configured to execute all the steps of the battery pack replacement control method for a power conversion station as described above.

As shown in fig. 10, an embodiment of the present application provides a work flow diagram of a battery pack replacement method, where an intelligent battery replacement vehicle platform as shown in fig. 5 is used, and the method includes:

step S1001, a battery replacement station reads vehicle information;

step S1002, acquiring a mileage requirement input by a user;

step S1003, calculating the number delta of the required standard battery packs;

step S1004, if the number of the standard battery packs is matched, only replacing the standard battery packs, otherwise, executing step S1005;

and step S1005, rearranging and installing the standard battery pack according to the optimal scheme.

Specifically, the standard battery packs are the most basic energy storage units, and each standard battery pack can independently and normally drive the vehicle (a calculation example is shown in table 2). Wherein, the SUV is a Sport Utility Vehicle (sports Utility Vehicle), and the sedan is a car.

Table 2 single standard battery pack drive parameter calculation example

The capacity of each standard battery pack is consistent within an error range, and the battery packs have complete universality and interchangeability in platform truck types (along with the continuous perfection of relevant national standards and industry standards, the universality and the interchange among different brands of vehicle types can be realized in the future); the standard battery pack has certain energy storage capacity and can provide corresponding endurance mileage for the vehicle. In practical application, the size and capacity of the standard battery pack can be divided and defined according to the characteristics of the platform, so that the standard battery pack can be combined and matched. Furthermore, the same platform can also carry standard battery packs with different specifications (capacity and size), for example, two specifications of battery packs are available: standard battery pack a (25kWh), standard battery pack B (18kWh), combinations on the platform may be a + A, A + a + A, A + B, A + a + B, etc.

The vehicle information in the flow chart comprises the types of standard battery packs which can be loaded by the battery replacement vehicle model, the maximum loading quantity, the loaded standard battery pack quantity, the installation position information of the loaded standard battery packs on the vehicle and the position optimal solution of all possible loaded standard battery packs of the vehicle model; the battery replacing equipment of the battery replacing station can read the vehicle information; a client inputs required mileage information according to a trip demand; the battery replacement station calculates the type and the quantity delta of the required standard battery packs according to mileage information input by a customer, then compares and judges the loaded standard battery pack quantity information in the read vehicle information with a calculation result, and only performs battery replacement operation if the loaded standard battery pack quantity is matched with the customer requirement; and if not, rearranging and installing the battery pack according to the read optimal solution of the standard battery pack arrangement scheme of the vehicle model and the combination of the delta value. Each standard battery pack interface of the intelligent battery replacement vehicle platform is labeled as shown in fig. 3, and includes K1, K2, K3, … …, KN. The standard battery pack position optimal solution is the permutation and combination of the labels K1-KN, which is determined in the vehicle development process and stored in the vehicle information.

According to the battery pack replacement control method, the electronic equipment and the intelligent battery replacement vehicle platform, different use scenes of a user in short distance, middle distance and long distance are met through the optimized combination of the standard battery packs, so that the vehicle weight and energy consumption under different use scenes are optimized, the trip requirement of the user is met in a most economical mode, and the high energy consumption phenomenon of 'carrying a big bag by a short distance' is avoided. The intelligent battery replacement vehicle platform can realize the optimal installation and arrangement of the standard battery pack, thereby realizing the optimal distribution of the front and rear axle loads of the vehicle and ensuring the performance of the vehicle. The intelligent battery replacement can quickly meet different use requirements of users, and the user's mileage anxiety and charging time anxiety are solved. Meanwhile, the enterprise operation mode and the user selection are diversified, the user can buy or lease the standard battery pack according to the use requirement, the vehicle purchasing cost is reduced, and the improvement of the residual value of the vehicle (without the battery pack) is facilitated. Finally, the battery pack is charged slowly after being changed in a centralized mode, so that the service life of the battery is prolonged, the peak clipping and valley filling of a power grid are facilitated, and the electricity utilization economy is further improved.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A battery pack replacement control method for an electric vehicle is characterized by comprising the following steps:

sending standard battery pack power change information of an electric vehicle to the power change station, wherein the electric vehicle is driven by at least one standard battery pack, the standard battery pack power change information comprises standard battery pack allowable loading parameters of the electric vehicle, the standard battery pack power change information is used by the power change station for determining a battery requirement endurance mileage according to a user requirement endurance mileage, determining all battery pack combination schemes meeting the standard battery pack allowable loading parameters of the electric vehicle, the battery pack combination schemes at least comprise the number of standard battery packs, selecting the battery pack combination scheme with the total endurance mileage of the included standard battery packs larger than the battery requirement endurance mileage from all battery pack combination schemes as a battery pack combination scheme to be screened, and selecting the difference value between the total endurance mileage of the included standard battery packs and the battery requirement endurance mileage from all battery pack combination schemes to be screened as the minimum, and the battery pack combination scheme with the minimum number of the standard battery packs is used as a battery pack carrying scheme for meeting the driving mileage required by the user and the power change information of the standard battery packs.

2. The method for controlling replacement of the battery pack of the electric vehicle according to claim 1, wherein the sending of the standard battery pack replacement information of the electric vehicle to the replacement station specifically includes:

3. The method for controlling replacement of the battery pack of the electric vehicle according to claim 2, wherein:

4. The method for controlling replacement of the battery pack of the electric vehicle according to claim 2, wherein the sending of the standard battery pack replacement information of the electric vehicle to the replacement station specifically further comprises:

5. The method for controlling replacement of the battery pack of the electric vehicle as claimed in claim 4, wherein the sending of the standard battery pack replacement information of the electric vehicle to the replacement station specifically further comprises:

6. The utility model provides an electric automobile battery package replacement control electronic equipment which characterized in that includes: at least one processor; and the number of the first and second groups,

a memory communicatively coupled to at least one of the processors; wherein,

the battery pack replacement control method according to any one of claims 1 to 5 is performed.

7. The utility model provides an intelligence trades whole car platform of electric motor which characterized in that includes: the battery pack replacement control system comprises a plurality of parallel battery bins (1) arranged on an electric vehicle, the electric vehicle battery pack replacement control electronic equipment (2) and a communication device (3) as claimed in claim 6, wherein a standard battery pack interface used for being detachably connected with a standard battery pack is arranged in each battery bin (1), the standard battery pack interfaces of the battery bins (1) are electrically connected with a power system of the electric vehicle after being connected in parallel, the standard battery pack interfaces are in communication connection with the electric vehicle battery pack replacement control electronic equipment (2), and the electric vehicle battery pack replacement control electronic equipment (2) is in communication connection with the communication device (3).

8. The intelligent battery replacement vehicle platform according to claim 7, further comprising a plurality of battery management systems (11) in communication with the electric vehicle battery pack replacement control electronic device (2) and/or a battery cut-off unit (12) in communication with the electric vehicle battery pack replacement control electronic device (2), wherein each battery compartment (1) is provided with a battery management system plug connector electrically connected with the battery management system (11) and/or a battery cut-off unit plug connector electrically connected with the battery cut-off unit (12), the battery management system (11) connected with each battery management system plug connector is independent of the battery management systems (11) connected with other battery management system plug connectors, the battery disconnection unit (12) to which each of the battery disconnection unit connectors is connected is independent of the battery disconnection units (12) to which the other battery disconnection unit connectors are connected.

9. A battery pack replacement control method for a battery replacement station is characterized by comprising the following steps:

displaying the battery pack carrying scheme;

the method comprises the steps of receiving standard battery pack power change information returned by the electric automobile, acquiring a user requirement endurance mileage, and determining a battery pack carrying scheme meeting the user requirement endurance mileage and the standard battery pack power change information according to the user requirement endurance mileage and the standard battery pack power change information, and specifically comprises the following steps:

determining all battery pack combination schemes meeting allowable loading parameters of standard battery packs of the electric automobile, wherein the battery pack combination schemes at least comprise the number of the standard battery packs, and selecting the battery pack combination scheme of which the total cruising mileage of the included standard battery packs meets the battery requirement cruising mileage from all the battery pack combination schemes as a battery pack carrying scheme meeting the user requirement cruising mileage and the standard battery pack power change information;

the battery pack combination scheme that the total endurance mileage of the included standard battery packs meets the battery requirement endurance mileage is selected from all battery pack combination schemes, and specifically comprises the following steps:

10. The battery pack replacement control method for the battery replacement station according to claim 9, wherein the obtaining of the required endurance mileage of the user and the determining of the required endurance mileage of the battery according to the required endurance mileage of the user specifically include:

11. The method according to claim 9, wherein the received standard battery pack replacement information further includes a position optimal solution of a standard battery pack combination allowed by the electric vehicle, the position optimal solution of the standard battery pack combination is an optimal position on the electric vehicle preset by each standard battery pack included in the standard battery pack combination, and the selecting a battery pack combination scheme in which a total cruising range of the included standard battery packs meets the required cruising range of the battery from all battery pack combination schemes as the battery pack carrying scheme meeting the required cruising range of the user and the standard battery pack replacement information specifically includes:

12. The method for controlling battery pack replacement in a battery replacement station according to claim 11, wherein the received standard battery pack replacement information further includes the number of standard battery packs loaded on the electric vehicle, and the battery pack combination scheme that the total cruising range of the included standard battery packs meets the required cruising range of the battery is selected from all battery pack combination schemes as the battery pack loading scheme that meets the required cruising range of the user and the standard battery pack replacement information specifically includes:

13. The utility model provides a trade power station battery package and change control electronic equipment which characterized in that includes: at least one processor; and the number of the first and second groups,

a memory communicatively coupled to at least one of the processors; wherein,

the replacement power station battery pack replacement control method as claimed in any one of claims 9 to 12 is performed.

14. A storage medium storing computer instructions for performing all the steps of the electric vehicle battery pack replacement control method according to any one of claims 1 to 5 when the computer instructions are executed by a computer.

15. A storage medium storing computer instructions for performing all the steps of the battery pack replacement control method according to any one of claims 9 to 12 when the computer instructions are executed by a computer.