TWI693416B - Systems and methods for battery management of electronic vehicles, and related computer program products - Google Patents

Abstract

Systems and methods for battery management of electronic vehicles are provided. The system for battery management of electronic vehicles at least includes a battery storage device. First, a battery exchange request is received, wherein the battery exchange request corresponds to a first battery. Then, a first power amount data of the corresponding first battery is obtained and a third battery is selected from one of a plurality of second batteries of the battery storage device. Then, using price of the third battery is determined according to the first power amount data and a second power data corresponding to the third battery. The using price of the third battery is then displayed via a display unit, and a battery access service corresponding to the third battery is provided based on the using price of the third battery.

Description

Electric vehicle battery management system and method, and related computer programs product

The present invention relates to a battery management system and method, and particularly to a battery management system and method suitable for managing batteries in a battery storage device of an electric vehicle.

In recent years, with the spread of environmental awareness, the development of electric vehicles that use electrical energy as a source of power to replace traditional vehicles powered by fossil fuels has gradually become an important goal in the automotive field, thus making electric vehicles such as electric motorcycles more and more universal. To save charging time, electric vehicle charging equipment must charge electric vehicles with higher power. In addition, for electric vehicles with different battery systems, the required charging voltage and charging current are also different. As the battery capacity of electric vehicles increases, the charging voltage required to charge electric vehicles also increases. At present, the charging method of the electric vehicle may be directly charging the battery or removing the battery to a battery storage device for charging.

Generally speaking, a battery storage device can have multiple battery slots, each of which can hold one or more batteries, and a user of an electric vehicle can place its battery in any available slot in the battery storage device and Charging is performed after performing a specified operation. Some battery storage devices also allow users to perform a battery exchange service, allowing users of electric vehicles to exchange their batteries with any available battery in the battery storage device, and directly place their batteries in any of the battery storage devices. After using the available slot and performing a specified operation, remove an available battery for use. However, generally speaking, the above charging or battery exchange services all need to pay a fixed fee, which is also a burden to the user. Therefore, users usually use the battery until the power is too low or almost completely empty, and then exchange or recharge, indirectly shortening the number of times and life of the battery, making related services impossible to popularize. In addition to causing inconvenience to users, Reduce user use of batteries The willingness of the storage device to charge or change the battery results in poor performance of the battery storage device.

Therefore, there is a need for a battery management method and system that solves the above problems.

In view of this, the present invention provides a battery management system and method for electric vehicles, which can be used to automatically detect or obtain the power of a battery to be exchanged or charged and provide a flexible access price or charging price according to the difference in power, which can increase users The willingness to exchange or charge the battery before it is too low.

The battery management method of an electric vehicle according to an embodiment of the present invention is applicable to a battery storage device. The method includes the following steps. First, a battery exchange request is received, where the battery exchange request corresponds to a first battery. Then, obtain a first electric quantity data of the corresponding first battery and select a third battery among a plurality of second batteries of the battery storage device. Then, based on the first power data and the corresponding second power data of one of the third batteries, the price of one of the third batteries is determined. Displaying the access price of the third battery through a display unit and providing one access service of the corresponding third battery according to the access price of the third battery.

A battery management method for an electric vehicle according to another embodiment of the present invention is applicable to a battery storage device, which includes at least a first slot for accommodating and charging a first battery. The method includes the following steps. First, a charging request for one of the corresponding first batteries is received. Next, a first electric quantity data of the corresponding first battery is obtained, and a charging price of one of the first batteries is determined according to the first electric quantity data. After that, the charging price of the first battery is displayed through a display unit and the charging service of the corresponding first battery is provided when an input of the charging price of the corresponding first battery is received.

An embodiment of the present invention provides a battery management system for an electric vehicle, which includes at least one battery storage device. The battery storage device includes at least a first slot for accommodating and charging a first battery, a wireless network connection unit, and a controller. The slot is used to accommodate and charge a plurality of second batteries. The controller is coupled to the display unit and the slot, and is used to receive a battery exchange request corresponding to a first battery, obtain a first power data of the corresponding first battery, and select a third battery among the second batteries according to The first electric quantity data and the second electric quantity data of the corresponding third battery determine the price of one of the third batteries, and display the price of the third battery through the display unit and provide the relative value according to the price of the third battery The service should be accessed by one of the third batteries.

According to another embodiment of the invention, a battery management system for an electric vehicle includes at least one battery storage device. The battery storage device includes at least a first slot, a display unit, and a controller. The first slot is used to receive and charge a first battery. The controller is coupled to the display unit and the first slot to receive a charging request of the corresponding first battery, obtain a first power data of the corresponding first battery, and determine a charging of the first battery according to the first power data Price, and display the charging price of the first battery through the display unit and provide the charging service of the corresponding first battery when receiving an input of the charging price of the corresponding first battery.

In some embodiments, the step of obtaining the first charge data of the corresponding first battery further includes the step of obtaining the first charge data of the corresponding first battery from a storage unit, wherein the first charge data represents a remaining battery.

In some embodiments, the step of obtaining the first power data of the corresponding first battery further includes detecting a remaining power of the first battery through a power detection unit to obtain the first power data of the corresponding first battery.

In some embodiments, the step of determining the access price of the third battery based on the first power data and the second power data of the corresponding third battery further includes providing a predetermined access price, based on the first power data and The second power data is used to calculate a power difference, and to determine whether the third battery's access price is the predetermined access price based on the power difference and a predetermined difference. In some embodiments, the step of determining whether the access price of the third battery is the predetermined access price based on the power difference and the predetermined difference further includes determining whether the power difference is greater than the predetermined difference, and when the power difference is not greater than the predetermined difference, Calculate the difference between the power difference and the predetermined difference, determine a discounted price based on the difference, and obtain the access price of the third battery based on the predetermined access price and discount price, wherein the access price of the third battery is lower than the predetermined Take the price. In some embodiments, when the power difference is greater than the predetermined difference, it is determined that the access price of the third battery is the predetermined access price.

In some embodiments, the step of selecting the third battery among the second batteries further includes detecting a current power of each second battery through a power detection unit and determining based on the current power of all second batteries The selected third battery, wherein the power of the third battery is higher than a predetermined power.

In some embodiments, it further includes counting the total quantity of one of the second batteries, calculating a power difference based on the first power data and the second power data, and determining the access price of the third battery based on the power difference and the total quantity.

The above-mentioned method of the present invention may exist in a code way. When the program code is loaded and executed by the machine, the machine becomes a device for implementing the present invention.

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the embodiments are described below in conjunction with the accompanying drawings, and the detailed description is as follows.

100: Battery management system for electric vehicles

110: battery storage device

112: first slot

113: The first battery

114: Power detection unit

115: storage unit

116: display unit

118: Controller

S310, S320, S330, S340, S350: steps

S410, S420, S430: steps

S510, S520, S530, S540, S550, S560: steps

S610, S620: steps

S710, S720, S730, S740: steps

FIG. 1 is a schematic diagram showing a battery management system of an electric vehicle according to an embodiment of the invention.

FIG. 2 is a schematic diagram showing a battery management system of an electric vehicle according to another embodiment of the invention.

FIG. 3 is a flowchart showing a battery management method of an electric vehicle according to an embodiment of the present invention.

FIG. 4 is a flow chart showing a method of determining the price for taking a third battery according to an embodiment of the present invention.

FIG. 5 is a flow chart showing a method of determining the price for taking a third battery according to another embodiment of the invention.

FIG. 6 is a flowchart showing a method of determining the selected third battery according to an embodiment of the present invention.

FIG. 7 is a flowchart showing a battery management method of an electric vehicle according to another embodiment of the invention.

Figure 1 shows a battery management system for an electric vehicle according to an embodiment of the invention. As shown in FIG. 1, the battery management system 100 of an electric vehicle according to an embodiment of the present invention at least includes a battery storage device 110. The battery storage device 110 has a specific space for accommodating the battery of the electric vehicle and can charge the battery in the space. For example, in one embodiment, the battery storage device 110 may be a charging station having multiple battery slots and having charging and/or battery exchange functions, allowing users of electric vehicles to insert batteries of their electric vehicles into them Charge in a battery slot or The battery of its electric vehicle may be inserted therein to perform a battery exchange service with a battery in the battery slot, but it is not limited thereto. In some embodiments, the electric vehicle may be a two-wheeled electric vehicle such as an electric vehicle, an electric bicycle, etc., but the present invention is not limited thereto. The battery storage device 110 may include at least one or more first slots 112, a power detection unit 114, a display unit 116, and a controller 118. For example, the controller 118 may be a general-purpose controller, a microcontroller (Micro-Control Unit, MCU), or a digital signal processor (DSP), etc., to provide data analysis, processing, and calculation functions , But the invention is not limited to this.

Each first slot 112 is used to receive and charge a first battery 113. The battery 113 may be any electrical energy storage device that can store or generate charge, and can provide at least a portion of the power consumed by the electric vehicle prime mover. In an embodiment, the first battery 113 is a portable rechargeable battery, wherein the portable rechargeable battery may include any electrical energy storage device that can store or generate charge, including but not limited to lead/acid storage battery, nickel /Cadmium storage battery, lithium ion storage battery, thin film lithium storage battery, nickel/metal hybrid storage battery, and the like. In some embodiments, the first battery 113 may also be an electric energy storage device such as a super capacitor or an ultra-high capacitor. For example, in an embodiment, the battery storage device 110 may include nine slots 112, and each slot 112 may accommodate a first battery 113 of an electric vehicle such as an electric vehicle. The battery storage device 110 has a charging capability. When the first battery 113 is inserted into an available slot 112 (ie, an empty slot 112 without a battery inserted), the battery storage device 110 can charge the first battery 113 or Management of battery exchange. The battery storage device 110 can provide a charging service, and can charge the first battery 113 inserted into the slot 112 according to a charging request of a user. The battery storage device 110 also provides a battery exchange service, which can select one of the first batteries 113 in all slots 112 for the user to use in response to a user's battery exchange request. The second battery performs battery exchange service. It must be noted that the aforementioned number of slots is only an example of this case, and the present invention is not limited thereto. Any number of slots can be applied to the present invention.

The power detection unit 114 can be used to detect the power of the battery. In some embodiments, the power detection unit 114 may have a detection circuit or other hardware and software components for power detection to detect the power of a specific battery and generate a power detection data. For example, the power detection unit 114 may perform power detection on each first battery 113 in the first slot 112 and generate power data for each first battery 113. In some embodiments, the power detection unit 114 may detect the power of the second battery and generate a phase when the user inserts a second battery into the first slot 112 Should be the power information of the second battery. In one embodiment, the power data of the first battery 113 is used to indicate the current power or remaining power of the first battery 113. In other words, the controller 118 can obtain first power data representing the current power or remaining power of the first battery 113 through the power detection result of the power detection unit 114. The display unit 116 is used to display related data, such as text, images, information, and user interface. In some embodiments, the display unit 116 displays a user interface through which the user can input the charging request or the battery exchange request. In some embodiments, the battery storage device 110 may further include a wireless network connection unit (not shown in FIG. 1). The wireless network connection unit can be connected to a network, such as a wired network, a telecommunications network, and a wireless network, such as a Bluetooth network, a Wi-Fi network, and so on. With the wireless network connection unit, the battery storage device 110 can have a network access capability. The battery storage device 110 can be coupled to other electronic devices with network access capabilities through a wireless network, such as a Bluetooth network, a Wi-Fi network, or the like. In one embodiment, the battery storage device 110 can be coupled to a smart phone via a wireless network, such as a Bluetooth network, a Wi-Fi network, or the like. It is worth noting that in some embodiments, the wireless network connection unit may be a network connection unit with low energy consumption technology, such as Bluetooth Smart technology. There are two modes in Bluetooth Smart technology, such as peripheral mode and central mode. In the central mode, the network connection unit can receive data from the network connection unit of other electronic devices, and has the ability to actively connect to other electronic devices. In the peripheral mode, the network connection unit can broadcast signals such as its own identification data. However, the network connection unit cannot actively connect to other electronic devices in the peripheral mode. In some embodiments, the wireless network connection unit is in a peripheral mode. In other words, the wireless network connection unit has data broadcasting capability, and the wireless network connection unit can only be passively connected by other electronic devices, but cannot actively connect to other electronic devices. In some embodiments, the battery storage device 110 may use a wireless network connection unit to broadcast its identification data. By identifying the data, other electronic devices can be connected to the battery storage device. The controller 118 can control the operations of the related software and hardware in the battery storage device 110 and execute the battery management method of the electric vehicle in this case. The details will be described later.

FIG. 2 shows a battery management system of an electric vehicle according to another embodiment of the invention. As shown in FIG. 2, the battery management system 100 of an electric vehicle according to an embodiment of the present invention at least includes a battery storage device 110. Similarly, the battery storage device 110 has a specific space to accommodate the battery of the electric vehicle and can charge the battery in the space. For example, in an embodiment, the battery storage device 110 may be a battery storage device with multiple battery slots and charging and/or battery exchange functions The charging station allows users of electric vehicles to insert their electric vehicle batteries into one of the battery slots for charging or to insert their electric vehicle batteries into a battery exchange service with a battery on the battery slot. But it is not limited to this. In some embodiments, the electric vehicle may be a two-wheeled electric vehicle such as an electric vehicle, an electric bicycle, etc., but the present invention is not limited thereto. The battery storage device 110 may include at least one or more first slots 112, a power detection unit 114, a display unit 116, and a controller 118. For example, the controller 118 may be a general-purpose controller, a microcontroller (Micro-Control Unit, MCU), or a digital signal processor (DSP), etc., to provide data analysis, processing, and calculation functions , But the invention is not limited to this.

Each first slot 112 is used to receive and charge a first battery 113. The battery 113 may be any electrical energy storage device that can store or generate charge, and can provide at least a portion of the power consumed by the electric vehicle prime mover. In an embodiment, the first battery 113 is a portable rechargeable battery, wherein the portable rechargeable battery may include any electrical energy storage device that can store or generate charge, including but not limited to lead/acid storage battery, nickel /Cadmium storage battery, lithium ion storage battery, thin film lithium storage battery, nickel/metal hybrid storage battery, and the like. In some embodiments, the first battery 113 may also be an electric energy storage device such as a super capacitor or an ultra-high capacitor. For example, in an embodiment, the battery storage device 110 may include nine slots 112, and each slot 112 may accommodate a first battery 113 of an electric vehicle such as an electric vehicle. The battery storage device 110 has a charging capability. When the first battery 113 is inserted into an available slot 112 (ie, an empty slot 112 without a battery inserted), the battery storage device 110 can charge the first battery 113 or Management of battery exchange. The battery storage device 110 can provide a charging service, and can charge the first battery 113 inserted into the slot 112 according to a charging request of a user. The battery storage device 110 also provides a battery exchange service, which can select one of the first batteries 113 in all slots 112 for the user to use in response to a user's battery exchange request. The second battery performs battery exchange service. It must be noted that the aforementioned number of slots is only an example of this case, and the present invention is not limited thereto. Any number of slots can be applied to the present invention.

The power detection unit 114 can be used to detect the power of the battery. In some embodiments, the power detection unit 114 may have a detection circuit or other hardware and software components for power detection to detect the power of a specific battery and generate a power detection data. For example, the power detection unit 114 may perform power detection on each first battery 113 in the first slot 112 and generate power data for each first battery 113. In one embodiment, the power data of the first battery 113 is used To indicate the current capacity or remaining capacity of the first battery 113. The first battery 113 may include a storage unit 115, wherein the storage unit 115 stores power data representing the current power or remaining power of the first battery 113. In other words, the controller 118 can also obtain the first power data representing the current power or remaining power of the first battery 113 directly from the storage unit 115 without passing through the power detection unit 114. The display unit 116 is used to display related data, such as text, images, information, and user interface. In some embodiments, the display unit 116 displays a user interface through which the user can input the charging request or the battery exchange request. In some embodiments, the battery storage device 110 may further include a wireless network connection unit (not shown in FIG. 2). The wireless network connection unit can be connected to a network, such as a wired network, a telecommunications network, and a wireless network, such as a Bluetooth network, a Wi-Fi network, and so on. With the wireless network connection unit, the battery storage device 110 can have a network access capability. The battery storage device 110 can be coupled to other electronic devices with network access capabilities through a wireless network, such as a Bluetooth network, a Wi-Fi network, or the like. In one embodiment, the battery storage device 110 can be coupled to a smart phone via a wireless network, such as a Bluetooth network, a Wi-Fi network, or the like. It is worth noting that in some embodiments, the wireless network connection unit may be a network connection unit with low energy consumption technology, such as Bluetooth Smart technology. There are two modes in Bluetooth Smart technology, such as peripheral mode and central mode. In the central mode, the network connection unit can receive data from the network connection unit of other electronic devices, and has the ability to actively connect to other electronic devices. In the peripheral mode, the network connection unit can broadcast signals such as its own identification data. However, the network connection unit cannot actively connect to other electronic devices in the peripheral mode. In some embodiments, the wireless network connection unit is in a peripheral mode. In other words, the wireless network connection unit has data broadcasting capability, and the wireless network connection unit can only be passively connected by other electronic devices, but cannot actively connect to other electronic devices. In some embodiments, the battery storage device 110 may use a wireless network connection unit to broadcast its identification data. By identifying the data, other electronic devices can be connected to the battery storage device. The controller 118 can control the operations of the related software and hardware in the battery storage device 110 and execute the battery management method of the electric vehicle in this case. The details will be described later.

FIG. 3 shows a battery management method of an electric vehicle according to an embodiment of the present invention. The battery management method of an electric vehicle according to an embodiment of the present invention is applicable to a battery management system, such as the battery management system 100 shown in FIGS. 1 and 2 and executed by the controller 118 in the battery storage device 110. For example, in an embodiment, the battery storage device 110 may have multiple battery slots And a charging station with charging and/or battery exchange function allows users of electric vehicles to insert their batteries into one of the battery slots for charging or to insert their batteries into the battery slots The battery on the battery performs a battery exchange service, but it is not limited to this. In this embodiment, it is assumed that a first user puts a first battery 113 into a first slot 112 of a battery storage device 110 including a plurality of battery slots and inputs a battery exchange request to exchange batteries One of the multiple second batteries on the slot.

First, in step S310, the battery storage device receives a battery exchange request, where the battery exchange request corresponds to the first battery. In some embodiments, a display unit displays a user interface, where the user can input the battery exchange request through the user interface. For example, the user interface provides an option. When this option is selected, it indicates that the above battery exchange request is input. Then, in step S320, the battery storage device obtains a first electric quantity data corresponding to the first battery in response to the battery exchange request. In some embodiments, the step of obtaining the first power data of the corresponding first battery may include the step of obtaining the first power data of the corresponding first battery from a storage unit, where the first power data represents a remaining battery. It is worth noting that in some embodiments, the first battery may include a storage unit, where the storage unit stores power data representing the current power or remaining power of the first battery. In other words, the controller can directly obtain first power data representing the current power or remaining power of the first battery from the storage unit. In some embodiments, the step of obtaining the first power data of the corresponding first battery may include detecting a remaining power of the first battery through a power detection unit to obtain the first power data of the corresponding first battery. It is worth noting that in some embodiments, the power detection unit may have a detection circuit or other hardware and software components for power detection to detect the power of the first battery and generate the first corresponding to the first battery Power data. In one embodiment, the power data of the corresponding first battery is used to indicate the current power or remaining power of the first battery. In other words, the battery storage device can obtain first power data indicating the current power or remaining power of the first battery through the power detection result of the power detection unit. In step S330, the battery storage device selects a third battery among the plurality of second batteries of the battery storage device. In some embodiments, the step of selecting the third battery of the second battery of the battery storage device may include detecting the current power of one of each second battery through the power detection unit and determining the desired selection according to this Of the third battery, where the power of the third battery is higher than a predetermined power. It is reminded that the selection method of the third battery will be explained later.

After determining the selected third battery, in step S340, the battery storage device Based on the first power data and the corresponding second power data of the third battery, the price of one of the third batteries is determined. It is reminded that the method of deciding the price of the third battery will be explained later. In some embodiments, the step of determining the access price of the third battery based on the first power data and the second power data of the corresponding third battery further includes providing a predetermined access price, based on the first power data and The second power data is used to calculate a power difference, and to determine whether the third battery's access price is the predetermined access price based on the power difference and a predetermined difference. In some embodiments, the step of determining whether the access price of the third battery is the predetermined access price based on the power difference and the predetermined difference further includes determining whether the power difference is greater than the predetermined difference, and when the power difference is not greater than the predetermined difference, Calculate the difference between the power difference and the predetermined difference, determine a discounted price based on the difference, and obtain the access price of the third battery based on the predetermined access price and discount price, wherein the access price of the third battery is lower than the predetermined Take the price. In some embodiments, when the power difference is greater than the predetermined difference, it is determined that the access price of the third battery is the predetermined access price. It is reminded that the method of deciding the access price of the third battery will be explained later.

After determining the access price of the third battery, in step S350, the battery storage device displays the access price of the third battery through a display unit, and provides one access service of the corresponding third battery according to the access price of the third battery. In this embodiment, the battery storage device displays information about the price of the third battery through the display unit. In other words, the user can also know the price of the third battery through the display data of the display unit. In some embodiments, the battery storage device may also send a message containing information about the access price of the third battery to a first smartphone of the user through a wireless network connection unit, through a first The user interface of one of the smartphones displays information about the price of the third battery. In other words, the user can also know the price of the third battery through the user interface. After that, the user can start one of the corresponding third battery access services by entering the same amount of the third battery access price, and the battery storage device can provide the corresponding third battery according to the third battery access price The access service allows users to take out the third battery. For example, when a user wants to perform a battery exchange service, the user can insert the first battery with only half of its power into the slot of the battery storage device, and the battery storage device can obtain the first power data of the corresponding first battery as the total power Half of the current second battery, and select a third battery of the existing second battery whose remaining power is full, and then decide to use one of the third batteries according to the first power data and the second power data of the corresponding third battery The price is half of the predetermined price (for example: 40 yuan) (for example: 20 yuan), and is displayed through the display unit The access price of this third battery. The battery storage device can provide the corresponding third battery access service according to the third battery access price, so the user can take out the third battery for only 20 yuan. In this way, the cost of replacing the battery with more remaining power will be lower, which can increase the user's willingness to not use the battery until it is completely discharged and then exchange it, thereby extending the number of times and life of the battery. Understandably, in some embodiments, when the user does not enter the same amount of the third battery access price or the input amount is less than the third battery access price, the battery storage device will not allow the user to take out This third battery.

FIG. 4 shows a method for determining the price of the third battery according to an embodiment of the present invention. The method for determining the access price of one of the third batteries according to the embodiment of the present invention is applicable to a battery management system, such as the battery management system 100 shown in FIGS. 1 and 2 and controlled by the battery storage device 110 in the battery management system 100 Executed by the device. First, in step S410, the battery storage device provides a predetermined access price. The default access price is the basic pricing for access to each battery. In step S420, the battery storage device calculates a power difference based on the first power data and the second power data. It is worth noting that in an embodiment, the battery storage device can obtain the first power data of the corresponding first battery from a storage unit. In another embodiment, the battery storage device may detect a remaining power of the first battery through a power detection unit to obtain first power data of the corresponding first battery. Similarly, in an embodiment, the battery storage device may obtain second power data of a corresponding third battery from a storage unit, where the third battery is selected from the plurality of second batteries of the battery storage device. In another embodiment, the battery storage device may detect a remaining power of the third battery through the power detection unit to obtain second power data of the corresponding third battery. In some embodiments, the power detection unit may have a detection circuit or other hardware and software components for power detection to detect the power of the first battery to generate first power data corresponding to the first battery, or use To perform power detection on the third battery and generate second power data corresponding to the third battery. In an embodiment, the power data of a corresponding battery is used to indicate the current power or remaining power of the battery. In an embodiment, the calculation method of the power difference is obtained by subtracting the power represented by the first power data from the power represented by the second power data, but the invention is not limited thereto. Other methods that can be used to calculate the difference between the two amounts of electricity can also be applied to the present invention. After the power difference is calculated, in step S430, the battery storage device determines whether the price of the third battery is the predetermined price based on the power difference and a predetermined difference. In other words, both the established difference and the difference in power will affect the access price of the third battery. It is worth noting that, in some embodiments, the value of the predetermined difference can be set according to actual needs. The smaller the value, the greater the chance that the access price of the third battery is lower than the predetermined access price. Conversely, the greater the value of the established difference, the greater the chance that the access price of the third battery is equal to the established access price. As a reminder, please refer to the description in Figure 5 below for the method of deciding whether the access price of the third battery is the predetermined access price.

FIG. 5 shows a method for determining the access price of the third battery according to another embodiment of the present invention, which is used to determine whether the access price of the third battery is the predetermined access price based on a power difference and the aforementioned predetermined difference. The method for determining the access price of one of the third batteries according to the embodiment of the present invention is applicable to a battery management system, such as the battery management system 100 shown in FIGS. 1 and 2 and controlled by the battery storage device 110 in the battery management system 100 Executed by the device.

First, in step S510, the battery storage device calculates a power difference based on the first power data and the second power data. It is worth noting that in an embodiment, the battery storage device can obtain the first power data of the corresponding first battery from a storage unit. In another embodiment, the battery storage device may detect a remaining power of the first battery through a power detection unit to obtain first power data of the corresponding first battery. Similarly, in an embodiment, the battery storage device may obtain second power data of a third battery from a storage unit, where the third battery is selected from the plurality of second batteries of the battery storage device. In another embodiment, the battery storage device may detect a remaining power of the third battery through the power detection unit to obtain second power data of the corresponding third battery. In some embodiments, the power detection unit may have a detection circuit or other hardware and software components for power detection to detect the power of the first battery to generate first power data corresponding to the first battery, or use To perform power detection on the third battery and generate second power data corresponding to the third battery. In an embodiment, the power data of a corresponding battery is used to indicate the current power or remaining power of the battery. In an embodiment, the calculation method of the power difference is obtained by subtracting the power represented by the first power data from the power represented by the second power data, but the invention is not limited thereto. Other methods that can be used to calculate the difference between the two amounts of electricity can also be applied to the present invention. After calculating the power difference, in step S520, the battery storage device determines whether the power difference is greater than a predetermined difference. When the power difference is greater than the predetermined difference (Yes in step S520), as in step S530, the battery storage device determines that the third battery access price is the predetermined access price, and the process ends here. When the power difference is less than or equal to the predetermined difference (No in step S520), steps S540 to S560 are continued. In step S540, the battery storage device calculates a difference between the power difference and the predetermined difference. In an embodiment, the calculation method of the above-mentioned difference value is obtained by subtracting the difference in electric quantity from the predetermined difference, but the invention is not limited to this. Others can be used to calculate the difference The value mode can also be applied to the present invention. After calculating the difference, in step S550, the battery storage device determines a discounted price based on the difference, and in step S560, based on the predetermined access price and the discounted price, the access price of the third battery is obtained. In some embodiments, the size of the difference can be used directly as the discount price, or the discount price can be determined according to the difference and a mathematical formula such as a specific ratio. However, it is understandable that the present invention is not limited to this. In some embodiments, the calculation result of subtracting the discounted price from the predetermined access price is the access price of the third battery, or the calculation result of subtracting half the discounted price or a specific percentage of the predetermined access price is the third The price of the battery, etc., but the present invention is not limited to this. For example, in an embodiment, suppose that the battery power is expressed as a percentage of the remaining power in the total power with a value of 0~100, where 0 indicates that the battery is completely discharged (the remaining power is 0), and 50 indicates that the battery has half remaining (The remaining power is 50%), 100 means the battery is full (the remaining power is 100%), and so on. In this embodiment, the predetermined difference is set to 50 and the predetermined access price is 40 yuan. In an example, when the value of the first power data is 50 and the value of the second power data is 90, the battery storage device can calculate that the power difference is 40, which is less than the predetermined difference, and then the difference between the power difference and the predetermined difference The value 10 is set as the discount price, so the access price of the third battery = the predetermined access price-the discount price = 40-10 = 30 yuan. In another example, when the value of the first charge data is 10 and the value of the second charge data is 90, the battery storage device can calculate that the difference in charge is 80, which is greater than the predetermined difference, so the access price of the third battery is obtained = Fixed access price = 40 yuan. It can be seen from the above example that when the remaining battery capacity of the user's battery exceeds half, the battery exchange service can be carried out at a more favorable price, which can increase the user's willingness to replace the battery when it is half used, thereby extending the use of the battery life.

In some embodiments, the battery storage device may also count the total quantity of one of the second batteries that can be exchanged, and then determine the access price of the third battery based on the difference in power, the predetermined difference, and the total quantity. For example, when the power difference is less than the predetermined difference and the total number of exchangeable second batteries is less than a predetermined amount, a lower access price for the third battery can be provided. Conversely, when the power difference is less than the predetermined difference and the total number of exchangeable second batteries is higher than the predetermined number, a higher access price for the third battery can be provided.

FIG. 6 shows a method of determining the selected third battery according to an embodiment of the present invention. The method for determining the selected third battery according to the embodiment of the present invention is suitable for a battery management system, such as the battery management system 100 shown in FIGS. 1 and 2 and executed by the controller of the battery storage device 110 in the battery management system 100 .

First, in step S610, the battery storage device detects and obtains the current power of each second battery through a power detection unit. In this embodiment, the second battery refers to a battery that can be exchanged in the battery storage device. It is worth noting that, in some embodiments, the power detection unit may have a detection circuit or other hardware and software components for power detection, which are used to detect the power of each second battery to generate the corresponding power of the second battery data. In one embodiment, the power data of the corresponding second battery is used to indicate the current power of the second battery. After obtaining the current power of all the second batteries, in step S620, the battery storage device determines the selected third battery according to the current power of all the second batteries, wherein the power of the third battery is higher than a predetermined power. In some embodiments, the predetermined amount of electricity may be defined as more than 80% of the amount of electricity, but it is not limited thereto. It is reminded that the value of the established power can be adjusted according to the actual use environment and strategy. In step S620, the battery storage device may first find one or more candidate batteries that meet the demand of a higher charge than the predetermined charge from all the second batteries, and then select one of the candidate batteries as the third battery. In one embodiment, the third battery is the one with the highest power among the candidate batteries. In another embodiment, the third battery is the lowest battery among the candidate batteries. In yet another embodiment, the third battery is a randomly selected one of the candidate batteries, but the present invention is not limited to this.

FIG. 7 shows a battery management method of an electric vehicle according to another embodiment of the invention. The battery management method of an electric vehicle according to an embodiment of the present invention is applicable to a battery management system, such as the battery management system 100 shown in FIGS. 1 and 2 and executed by the controller 118 in the battery storage device 110. For example, in one embodiment, the battery storage device 110 may be a charging station having multiple battery slots and having charging and/or battery exchange functions, allowing users of electric vehicles to insert batteries of their electric vehicles into them A battery slot can be charged or the battery of its electric vehicle can be inserted to perform a battery exchange service with a battery on the battery slot, but it is not limited thereto. In this embodiment, it is assumed that a first user puts a first battery 113 into a first slot 112 of a battery storage device 110 including a plurality of battery slots and enters a charging request to request battery storage The device 110 charges the first battery 113.

First, in step S710, the battery storage device receives a charging request corresponding to one of the first batteries. In some embodiments, a display unit displays a user interface, where the user can input the battery charging request through the user interface. For example, the user interface provides an option. When this option is selected, it indicates that the above battery charging request is input. Then, in step S720, the battery storage device obtains a first electric quantity data corresponding to the first battery in response to the charging request. In a In some embodiments, the step of obtaining the first charge data of the corresponding first battery may include the step of obtaining the first charge data of the corresponding first battery from a storage unit, where the first charge data represents a remaining amount of the first battery Power. It is worth noting that in some embodiments, the first battery may include a storage unit, where the storage unit stores power data representing the current power or remaining power of the first battery. In other words, the battery storage device can directly obtain first power data representing the current power or remaining power of the first battery from the storage unit. In some embodiments, the step of obtaining the first power data of the corresponding first battery may include detecting a remaining power of the first battery through a power detection unit to obtain the first power data of the corresponding first battery. It is worth noting that in some embodiments, the power detection unit may have a detection circuit or other hardware and software components for power detection to detect the power of the first battery and generate the first corresponding to the first battery Power data. In one embodiment, the power data of the corresponding first battery is used to indicate the current power or remaining power of the first battery. In other words, the battery storage device can obtain first power data indicating the current power or remaining power of the first battery through the power detection result of the power detection unit.

After obtaining the first power data corresponding to the first battery, in step S730, the battery storage device determines the charging price of one of the first batteries according to the first power data. In some embodiments, the step of determining the access price of the first battery based on the first power data further includes providing a predetermined charging price, and determining whether the charging price of the first battery is based on the first power data and a predetermined power The established charging price. In some embodiments, the step of determining whether the charging price of the first battery is the predetermined charging price based on the first power data and the predetermined power further includes determining whether the value of the first power data is greater than the predetermined power, when the first power data When the value is greater than the predetermined power, calculate a difference between the two, determine a discount price based on the difference, and obtain the charging price of the first battery based on the predetermined charging price and discount price, wherein the charging price of the first battery is lower than The established charging price. In some embodiments, when the value of the first power data is not greater than the predetermined power, it is determined that the first battery charging price is the predetermined charging price. After determining the charging price of the first battery, in step S740, the battery storage device displays the charging price of the first battery through a display unit, and receives an input of the corresponding charging price of the first battery according to the charging price of the first battery Provide one of the corresponding first battery charging service. In this embodiment, the battery storage device displays information about the charging price of the first battery through the display unit. In other words, the user can also know the charging price of the first battery through the display data of the display unit. In some embodiments, the battery storage device can also be sent via a wireless network connection unit including A message related to the charging price of the first battery is sent to a first smartphone of the user to display the charging price-related information about the first battery through a user interface of the first smartphone. In other words, the user can also know the charging price of the first battery through the user interface. After that, the user can start one of the charging services of the corresponding first battery by inputting the same amount of the charging price of the first battery, and the battery storage device can receive the corresponding first battery according to the charging price of the first battery The charging service of the corresponding first battery is provided when the charging price is input, and the first battery of the user is started to be charged.

An example will be described below, but it should be understood that the present invention is not limited thereto. For example, in a battery exchange example, when a user wants to perform a battery exchange service, the user can insert the first battery with only half of its power into the slot of the battery storage device, and the battery storage device can obtain the corresponding The first power data is half of the total power, and select a third battery of the existing second battery whose remaining power is full, and then determine according to the first power data and the second power data of one of the corresponding third batteries The access price of one of the third batteries is half (for example: 20 yuan) of the predetermined price (for example: 40 yuan), and the access price of this third battery is displayed through the display unit. The battery storage device can provide the corresponding third battery access service according to the third battery access price, so the user can take out the third battery for only 20 yuan. In this way, the cost of replacing the battery with more remaining power will be lower, which can increase the user's willingness to not use the battery until it is completely discharged and then exchange it, thereby extending the number of times and life of the battery. Similarly, in another battery charging example, when a user wants to perform a battery charging service, the user can insert the first battery with only half of its power into the slot of the battery storage device, and the battery storage device can obtain the corresponding The first power data is half of the total power, and then according to the first power data, the price of one of the third batteries is determined to be half of the predetermined price (for example: 40 yuan) (for example: 20 yuan), and this is displayed through the display unit The charging price of the first battery. The battery storage device can provide the corresponding first battery charging service according to the charging price of the first battery, so the user can charge the first battery for only 20 yuan. In this way, the cost of replacing the battery with more remaining power will be lower, which can increase the user's willingness to not use the battery until it is completely discharged and then exchange it, thereby extending the number of times and life of the battery. Similarly, a battery with more remaining power needs to be charged at a lower cost, which can increase the user's willingness to not use the battery until it is completely discharged and then recharge, thereby extending the number of times and life of the battery.

Therefore, through the battery management system of the electric car in this case and its related battery tubes The method can automatically detect or obtain the power of the battery to be exchanged or charged and provide a flexible access price or charging price according to the difference in power. The more the battery that is exchanged or charged, the lower the cost will be, which can be increased The user's willingness to exchange or charge the battery before the battery power is too low, which can extend the number of times and life of the battery, which can further extend the number of times and life of the battery, and further effectively increase the practicality and utilization rate of the battery storage device.

The method of the present invention, or a specific type or part thereof, may exist in the form of code. The program code may be included in physical media, such as a floppy disk, optical disc, hard disk, or any other machine-readable (such as computer-readable) storage medium, or it is not limited to an external form of computer program product, where, When the program code is loaded and executed by a machine, such as a computer, the machine becomes a device for participating in the present invention. The code can also be transmitted through some transmission media, such as wire or cable, optical fiber, or any type of transmission. When the code is received, loaded, and executed by a machine, such as a computer, the machine becomes Invented device. When implemented in a general-purpose processing unit, the code combines with the processing unit to provide a unique device that operates similar to the application of specific logic circuits.

Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with this skill can do some modifications and retouching without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall be as defined in the scope of the attached patent application.

S310, S320, S330, S340, S350: steps

Claims (8)

A battery management method for an electric vehicle, suitable for a battery storage device, includes the following steps: receiving a battery exchange request, wherein the battery exchange request corresponds to a first battery; and obtains a first corresponding to the first battery from a first unit A power quantity data; select a third battery among the plurality of second batteries of the battery storage device; determine the access price of one of the third batteries based on the first power quantity data and a second power quantity data corresponding to the third battery And a display unit to display the access price of the third battery and provide a corresponding access service of the third battery according to the access price of the third battery, wherein the first battery data and the corresponding Based on the second battery data of the third battery, the step of determining the access price of the third battery further includes the following steps: providing a predetermined access price; based on the first battery data and the second battery data, calculating a Power difference; and based on the power difference and a predetermined difference, determine whether the access price of the third battery is the predetermined access price. According to the battery management method of the first patent application, wherein the first unit is a storage unit and the step of obtaining the first power data corresponding to the first battery from the first unit further includes the following steps : Obtain the first power data corresponding to the first battery from the storage unit, Wherein the first electric quantity data represents a remaining electric quantity of the first battery. According to the battery management method of the first patent application, wherein the first unit is a power detection unit and the step of obtaining the first power data corresponding to the first battery from the first unit further includes The following steps: detect a remaining power of the first battery through the power detection unit to obtain the first power data corresponding to the first battery. According to the battery management method of the first patent application, wherein the step of determining whether the access price of the third battery is the predetermined access price based on the power difference and the predetermined difference further includes the following steps: Determine whether the power difference is greater than the predetermined difference; when the power difference is not greater than the predetermined difference, calculate the difference between the power difference and the predetermined difference; determine a discounted price based on the difference; and based on the predetermined access The price and the discounted price obtain the access price of the third battery, wherein the access price of the third battery is lower than the predetermined access price. The battery management method of the electric vehicle according to item 4 of the patent application scope further includes the following steps: when the difference in electric quantity is greater than the predetermined difference, the access price of the third battery is determined to be the predetermined access price. According to the battery management method of the first patent application, the step of selecting the third battery among the second batteries further includes the following steps: Detecting a current capacity of each of the second batteries through a power detection unit; and determining the selected third battery according to the current capacities of the second batteries, wherein the power of the third battery Higher than a given amount of electricity. A battery management system for an electric vehicle includes: a battery storage device including: a plurality of slots for accommodating and charging a plurality of second batteries; a display unit; and a controller coupled to the display unit And the slots for receiving a battery exchange request corresponding to a first battery, obtaining a first power data corresponding to the first battery from a first unit, and selecting a third battery among the second batteries , Based on the first charge data and the corresponding second charge data of the third battery, determine the access price of one of the third batteries, and display the access price of the third battery through the display unit and based on the first The access price of the three batteries provides one access service corresponding to the third battery, wherein the controller determines the access to the third battery based on the first power data and the second power data corresponding to the third battery The use price first provides a predetermined access price, calculates a power difference based on the first power data and the second power data, and determines whether the access price of the third battery is based on the power difference and a predetermined difference Take the price for the given. A computer program product for loading a machine and executing a battery management method of an electric vehicle for managing a plurality of first batteries. The computer program product includes: A first code to receive a battery exchange request corresponding to a second battery; a second code to obtain a first power data corresponding to the second battery from a first unit; a third program Code for selecting a third battery among the first batteries, and determining an access price for one of the third batteries based on the first power data and a second power data corresponding to the third battery, wherein the The first power data and the second power data corresponding to the third battery, the step of determining the access price of the third battery further includes providing a predetermined access price, based on the first power data and the second power data , Calculate a power difference, and determine whether the access price of the third battery is the predetermined access price based on the power difference and a predetermined difference; and a fourth program code for displaying the first battery through a display unit The access price of the three batteries and one access service corresponding to the third battery are provided according to the access price of the third battery.

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