Electric vehicle power display system and electric vehicle

Abstract

The present invention relates to the technical field of electric vehicles, and in particular to an electric vehicle power display system and an electric vehicle. The electric vehicle power display system includes a vehicle control unit, an information interaction unit, and a charger; the vehicle control unit is used to transmit the real-time working power of the electric vehicle in a working state to the information interaction unit; the information interaction unit is used to store the real-time working power transmitted by the vehicle control unit; the charger is used to obtain the real-time working power stored in the information interaction unit when charging the electric vehicle, and is used to determine the charging display power based on the real-time working power and the real-time charging power during the charging process of the electric vehicle, and display the charging display power. The present invention is used to solve the defect in the prior art that the user cannot accurately know the real-time power of the electric vehicle when charging.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and in particular to an electric vehicle power display system and an electric vehicle. Background Art

[0002] In recent years, electric vehicles have developed rapidly and are gradually playing a more important role in people's daily lives and production. However, this also brings various challenges, especially the charging problem of electric vehicles. When charging an electric vehicle through a charger, in order to ensure the safety of the electric vehicle, the vehicle control unit used to display the power level on the electric vehicle will be directly powered off during charging, making it impossible for users to view the accurate real-time power level through the electric vehicle itself. When charging an electric vehicle, the charger does not directly display the real-time power level of the electric vehicle, but instead displays the charging stage, which does not fully match the actual real-time power level of the electric vehicle. In particular, when charging an electric vehicle, the charger will increase the voltage of the electric vehicle's power battery, resulting in a mismatch between the power battery power level and the actual power level, resulting in an inflated power level. Therefore, users cannot accurately obtain the real-time power level of the electric vehicle through the charger. Summary of the Invention

[0003] The present invention provides an electric vehicle power display system and an electric vehicle, which are used to solve the defect in the prior art that a user cannot accurately know the real-time power level of the electric vehicle when the electric vehicle is charging.

[0004] The present invention provides an electric vehicle power display system, comprising a vehicle control unit, an information interaction unit and a charger; the vehicle control unit is used to transmit the real-time working power of the electric vehicle in a working state to the information interaction unit; the information interaction unit is used to store the real-time working power transmitted by the vehicle control unit; the charger is used to obtain the real-time working power stored in the information interaction unit when charging of the electric vehicle begins, and is used to determine the charging display power based on the real-time working power and the real-time charging power during the charging process of the electric vehicle, and display the charging display power.

[0005] According to an electric vehicle power display system provided by the present invention, the charger is used to transmit the real-time charging power to the information interaction unit during the charging process of the working electric vehicle; the information interaction unit is used to store the real-time charging power transmitted by the charger; the vehicle control unit is used to obtain the real-time charging power stored in the information interaction unit when the electric vehicle enters the working state, and is used to determine the working display power based on the real-time charging power and the working real-time power of the electric vehicle in the working state, and display the working display power.

[0006] According to an electric vehicle power display system provided by the present invention, the charger is used to determine whether the real-time charging power is greater than the real-time working power. If so, the real-time charging power is determined to be the charging display power; if not, the real-time working power is determined to be the charging display power.

[0007] According to an electric vehicle power display system provided by the present invention, the vehicle control unit is used to determine whether the real-time working power is less than the real-time charging power. If so, the real-time working power is determined to be the working display power; if not, the real-time charging power is determined to be the working display power.

[0008] According to an electric vehicle power display system provided by the present invention, the vehicle control unit is used to transmit the real-time working power to the information interaction unit with a first preset time period as a period; the information interaction unit is used to store the real-time working power most recently transmitted by the vehicle control unit.

[0009] According to an electric vehicle power display system provided by the present invention, the charger is used to transmit the real-time charging power to the information interaction unit with a second preset time period as a period; the information interaction unit is used to store the real-time charging power most recently transmitted by the charger.

[0010] According to an electric vehicle power display system provided by the present invention, the charger is used to convert the real-time charging voltage during the charging process of the electric vehicle into the corresponding real-time charging power based on a preset voltage-power correspondence relationship.

[0011] According to the electric vehicle power display system provided by the present invention, the information interaction unit is an on-board communication terminal configured for the electric vehicle.

[0012] According to the electric vehicle power display system provided by the present invention, the vehicle control unit is an electronic control unit configured for the electric vehicle.

[0013] The present invention also provides an electric vehicle, which is equipped with a vehicle control unit and an information interaction unit; the vehicle control unit, the information interaction unit and the charger constitute the electric vehicle power display system as described in any one of the above items.

[0014] The electric vehicle power display system and electric vehicle provided by the present invention include a vehicle control unit, an information interaction unit, and a charger; the vehicle control unit is used to transmit the real-time working power of the electric vehicle in a working state to the information interaction unit; the information interaction unit is used to store the real-time working power transmitted by the vehicle control unit; the charger is used to obtain the real-time working power stored in the information interaction unit when charging the electric vehicle starts, and to determine the charging display power based on the real-time working power and the real-time charging power during the charging process of the electric vehicle, and to display the charging display power. In this process, the information interaction unit is used as a transfer station for power information, and the information interaction unit stores the real-time working power of the electric vehicle in a working state. In particular, the real-time working power stored in the information interaction unit is the power information of the electric vehicle in a working state before charging begins. The real-time working power in the working state does not have the problem of false high power caused by the voltage being pulled up during charging, thereby improving the accuracy of the charging display power. When the charger is charging an electric vehicle, the charging display power is determined by the real-time working power stored in the information interaction unit and the real-time charging power during the charging process of the electric vehicle, rather than displaying the charging stage, further improving the accuracy of the power display during charging. Users can obtain accurate real-time power information through the charging display power displayed by the charger. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic structural diagram of the electric vehicle power display system provided by the present invention;

[0017] Figure 2 This is an example diagram of the charging stage provided by the present invention;

[0018] Figure 3 This is an example diagram of the corresponding relationship between electricity and voltage provided by the present invention;

[0019] Figure 4 This is a logic diagram of the discharge-to-charge power processing provided by the present invention;

[0020] Figure 5 This is a logic diagram of charge-discharge power processing provided by the present invention;

[0021] Figure 6 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0023] The following combination Figures 1 to 5 The present invention describes an electric vehicle power display system and an electric vehicle.

[0024] In one embodiment, Figure 1 As shown, the electric vehicle power display system includes a vehicle control unit, an information exchange unit, and a charger. The vehicle control unit is used to transmit the real-time working power of the electric vehicle when in operation to the information exchange unit; the information exchange unit is used to store the real-time working power transmitted by the vehicle control unit; and the charger is used to obtain the real-time working power stored in the information exchange unit when charging the electric vehicle begins, and to determine and display the charging display power based on the real-time working power and the real-time charging power during the charging process of the electric vehicle.

[0025] In this embodiment, the vehicle control unit is configured in an electric vehicle and is capable of collecting the real-time operating power level of the electric vehicle's power battery while the electric vehicle is in operation, and displaying this real-time operating power level to ensure that the user can view the electric vehicle's power level information at any time while the electric vehicle is in operation. The real-time operating power level refers to the real-time power level of the electric vehicle's power battery while the electric vehicle is in operation. The vehicle control unit supports data processing, data interaction, and information display functions to complete the processing, transmission, and display of power level information.

[0026] The information interaction unit is a device capable of data exchange and data storage. The information interaction unit can exchange data with the vehicle control unit and the charger. When the information interaction unit exchanges data with the vehicle control unit and the charger, it can do so via wireless communication or wired communication. The communication methods with the vehicle control unit and the charger can be the same or different. For example, the information interaction unit can exchange data with the vehicle control unit via wired communication, while the information interaction unit can exchange data with the charger via wireless communication.

[0027] The charger is a device external to an electric vehicle that charges the vehicle. For example, it connects to the vehicle via a charging cable to charge the vehicle's power battery. The vehicle control unit supports data processing, data exchange, and information display functions to process, transmit, and display power information.

[0028] In this embodiment, when the charger is charging an electric vehicle, the entire electric vehicle must be powered off to ensure its safety. That is, during the charging process, the vehicle control unit configured on the electric vehicle is inoperative, and direct data transmission or information exchange between the vehicle control unit and the charger is impossible. Therefore, the information exchange unit serves as a transfer station for power information. When the electric vehicle is in operation, the vehicle control unit transmits the real-time operating power to the information exchange unit, which then stores the real-time operating power. When the charger begins charging the electric vehicle, it first retrieves the stored real-time operating power from the information exchange unit. Then, based on the real-time operating power and the real-time charging power during the charging process, it determines the accurate charging display power. This charging display power represents the real-time power of the electric vehicle's power battery when it is charging. The charger displays this charging display power so that the user can view the electric vehicle's power information at any time while it is charging.

[0029] In one embodiment, the charger is used to convert the real-time charging voltage during the charging process of the electric vehicle into the corresponding real-time charging power based on a preset voltage-power correspondence.

[0030] In this embodiment, the process of charging the electric vehicle by the charger is a phased process. Figure 2As shown in the example diagram of the charging stage, the charger provides a power supply with a rated voltage of 24 volts (V) and a rated current of 36 amperes (A) to charge the electric vehicle. In chronological order, it is divided into five stages, namely Step 1, Step 2, Step 3, Step 4 and Step 5. Among them, the charging current used in Step 1 is a constant current I1, the current unit is A, the charging voltage to be reached at the end of this stage is 23.7V, and the charging time T1 is 0.5 hours (h); the charging current used in Step 2 is a constant current I2, and the charging time to be reached at the end of this stage is 0.5 hours (h). The charging voltage reached is 28.8V, and the charging time T2 is 8h; the charging current used in Step 3 is constant current I3, and the charging voltage to be reached at the end of this stage is 29.6V, and the charging time T3 is 1h; Step 4 first adopts constant current charging. When the charging voltage reaches 29.4V, the constant voltage is maintained and the current gradually decreases. The current that changes in this stage is expressed as I4, and the charging time T4 is 2h; After the voltage is reduced in Step 5, the charging voltage is maintained unchanged, and the current is further reduced until it is 0. The current that changes in this stage is expressed as I5, and the charging time T5 is 1.5h.

[0031] In this embodiment, the charger can directly obtain the above-mentioned charging voltage information during the process of charging the electric vehicle. However, during the process of charging the electric vehicle, the charger needs to increase the voltage of the electric vehicle's power battery, and in the process of increasing the voltage, it will not match the actual power. Figure 3 As shown in the example diagram of the relationship between power and voltage, the voltage is divided into 15 levels in descending order, namely A, B, C...L, M, N. During the charging process, for the same remaining power (State of Charge, SOC) of the power battery, the charging voltage is higher than the actual static voltage level of the power battery, that is, the voltage of the power battery is pulled up. For example, when the remaining power of the battery (expressed as a percentage) is 90%, the charging voltage level is A, while the actual static voltage of the power battery is F.

[0032] To ensure the accuracy of the real-time charge level displayed by the charger, the theoretical ampere-hours charged during the charging phase and the actual charging voltage were tested multiple times in advance to establish a correlation between the charging voltage and the actual charge level during the charging process. During the actual use of the electric vehicle, the real-time charging voltage during the charging process is converted into the corresponding real-time charge level based on this pre-established correlation between voltage and charge level, and this is displayed on the charger's display panel.

[0033] In one embodiment, the charger is used to determine whether the real-time charging power is greater than the real-time working power. If so, the real-time charging power is determined to be the charging display power; if not, the real-time working power is determined to be the charging display power.

[0034] In this embodiment, the charger starts from discharging the power battery to charging, and starts the processing logic of charging and displaying the power, such as Figure 4 The discharge-to-charge power processing logic diagram shown is as follows:

[0035] Step 401: The charger is turned on to start charging the electric vehicle;

[0036] In step 402, the information exchange unit may transmit the stored real-time working power of the electric vehicle when it is powered off to the charger via a transmission method such as broadcasting;

[0037] In step 403, the charger compares the real-time charging power obtained by the charging voltage with the real-time working power of the electric vehicle when the electric vehicle is powered off, and determines whether the real-time charging power is greater than the real-time working power. If so, the process proceeds to step 404; otherwise, the process proceeds to step 405.

[0038] In step 404, the charger determines that the real-time charging power is the charging display power, and then executes step 406;

[0039] If the real-time charging power is greater than the real-time working power, since the real-time charging power will gradually increase during the charging process, it is more accurate to determine the real-time charging power as the charging display power.

[0040] Step 405: The charger determines that the real-time working power is the charging display power, and then executes step 403;

[0041] If the real-time charging power is less than the real-time working power, it indicates that the real-time charging power determined at this time is still falsely high, and it is more accurate to determine that the real-time working power is the charging display power;

[0042] After determining that the working real-time power is the charging display power, the charging real-time power is continuously compared with the working real-time power during the charging process until the charging real-time power is greater than the working real-time power, indicating that the power of the power battery has reached the working real-time power before the electric vehicle is powered off. The power will continue to increase, and thereafter, it is more accurate to determine that the charging real-time power is the charging display power for display;

[0043] Step 406: The charger writes the real-time charging power to the information exchange unit, which then stores the real-time charging power.

[0044] Since the real-time charging power is consistent with the charging display power in this step, the real-time charging power stored in the information interaction unit is the charging display power, which is the most accurate power information;

[0045] Step 407: The charger is turned off to end charging.

[0046] In this embodiment, the real-time charging power is compared with the real-time working power of the electric vehicle before it is powered off, so as to ensure that the charging power displayed by the charger is always an accurate power value.

[0047] In one embodiment, the vehicle control unit is used to transmit the real-time working power to the information interaction unit at a first preset time period; the information interaction unit is used to store the real-time working power most recently transmitted by the vehicle control unit.

[0048] In this embodiment, since the power information is continuously generated, the power information stored in the information interaction unit required for any of the above embodiments can be the latest power information of the electric vehicle. At the same time, in order to avoid excessive data transmission, the vehicle control unit can periodically transmit the real-time working power to the information interaction unit with a first preset time period as a cycle. At the same time, the information interaction unit stores the most recent real-time working power transmitted by the vehicle control unit, and the last real-time working power obtained in history is directly overwritten. The first preset period can be pre-set based on actual conditions and experimental data. In this way, a large amount of storage resources can be saved and the difficulty of implementing the solution can be reduced.

[0049] In one embodiment, the charger is used to transmit the real-time charging power to the information interaction unit during the charging process of the working electric vehicle; the information interaction unit is used to store the real-time charging power transmitted by the charger; the vehicle control unit is used to obtain the real-time charging power stored in the information interaction unit when the electric vehicle enters the working state, and to determine the working display power based on the real-time charging power and the real-time working power of the electric vehicle in the working state, and display the working display power.

[0050] In this embodiment, there is a situation where charging is interrupted prematurely and the entire vehicle is powered on immediately. If the vehicle control unit is activated at this time, the voltage of the power battery will be increased during the charging process, and the vehicle control unit will display a falsely high power level. Therefore, during the charging process, the charger can transmit the real-time charging power level to the information exchange unit, and the information exchange unit will store the accurate real-time charging power level. When the electric vehicle enters the working state, the accurate real-time charging power level stored in the information exchange unit and the real-time working power level of the electric vehicle in the working state are used to determine a more accurate working power level display.

[0051] In one embodiment, the vehicle control unit is used to determine whether the real-time working power is less than the real-time charging power. If so, the real-time working power is determined to be the working display power; if not, the real-time charging power is determined to be the working display power.

[0052] In this embodiment, the vehicle control unit starts from the power battery charging to discharging, and starts the processing logic of the working display power, such as Figure 5The charge-discharge power processing logic diagram shown is as follows:

[0053] Step 501: The electric vehicle is powered on and starts working;

[0054] Step 502: The information exchange unit may transmit the stored real-time charging power at the end of charging to the vehicle control unit via a transmission method such as broadcasting.

[0055] In step 503, the vehicle control unit compares the real-time charging power at the end of charging with the real-time working power of the electric vehicle in the working state to determine whether the real-time working power is less than the real-time charging power. If so, step 504 is executed; otherwise, step 505 is executed.

[0056] In step 504, the vehicle control unit determines that the working real-time power is the working display power, and then executes step 506;

[0057] If the real-time charging power is greater than the real-time working power, it indicates that the real-time working power is not falsely high, and the real-time working power will gradually decrease during the discharge process. In this case, it is more accurate to determine the real-time working power as the working display power.

[0058] Step 505: The vehicle control unit determines that the real-time charging power is the working display power, and then executes step 503;

[0059] If the real-time charging power is less than the real-time working power, it indicates that the real-time working power is too high, and it is more accurate to determine the real-time charging power as the working display power.

[0060] After determining that the real-time charging capacity is the charging display capacity, the real-time charging capacity is continuously compared with the real-time working capacity during the continuous discharge process until the real-time working capacity is less than the real-time charging capacity, indicating that the power battery capacity has dropped to the real-time charging capacity at the end of charging. The capacity will continue to decrease. Thereafter, it is more accurate to determine that the real-time working capacity is the charging display capacity for display;

[0061] Step 506: The vehicle control unit writes the real-time working power to the information exchange unit, which then stores the real-time working power.

[0062] Since the working real-time power is consistent with the charging display power in this step, the working real-time power stored in the information exchange unit is the charging display power, which is the most accurate power information;

[0063] Step 407: The electric vehicle is powered off and the operation is completed.

[0064] In this embodiment, the real-time charging power is compared with the real-time working power of the electric vehicle before it is powered off, so as to ensure that the charging power displayed by the vehicle control unit is always an accurate power value.

[0065] In one embodiment, the charger is configured to transmit the real-time charging power to the information interaction unit at a second preset time period; and the information interaction unit is configured to store the most recently transmitted real-time charging power of the charger.

[0066] In this embodiment, since the power information is continuously generated, the power information stored in the information exchange unit required for any of the above embodiments only needs to be the latest power information of the electric vehicle. At the same time, in order to avoid excessive data transmission, the charger periodically transmits the real-time charging power to the information exchange unit with a second preset time period as a cycle. At the same time, the information exchange unit stores the most recent real-time charging power transmitted by the charger, and the last real-time charging power obtained in history is directly overwritten. The second preset period can be pre-set based on actual conditions and experimental data. In this way, a large amount of storage resources can be saved and the difficulty of implementing the solution can be reduced.

[0067] Furthermore, when the information exchange unit stores the most recent real-time working power transmitted by the vehicle control unit, if the most recent real-time charging power transmitted by the charger is obtained, the most recent real-time charging power directly overwrites the real-time working power. Conversely, when the information exchange unit stores the most recent real-time charging power transmitted by the charger, if the most recent real-time working power transmitted by the vehicle control unit is obtained, the most recent real-time working power directly overwrites the real-time charging power.

[0068] In one embodiment, the information exchange unit mentioned in any of the above embodiments is an on-board communication terminal (Tbox) configured for an electric vehicle, and the real-time working power or charging power is stored in the EEPROM of the Tbox. The vehicle control unit mentioned in any of the above embodiments is an electronic control unit (ECU) configured for the electric vehicle.

[0069] By using the Tbox and ECU configured in the electric vehicle itself, the solution provided by any of the above embodiments can be implemented without increasing the hardware cost.

[0070] In one embodiment, the real-time working power and charging power can be collected by respectively adding different power detection modules with Hall sensors. The power detection module records the real-time charging and discharging current, calculates the remaining battery power through the ampere-hour integration method, and synchronizes the display of the ECU and the charger.

[0071] The electric vehicle power display system provided by the present invention includes a vehicle control unit, an information interaction unit and a charger; the vehicle control unit is used to transmit the real-time working power of the electric vehicle in a working state to the information interaction unit; the information interaction unit is used to store the real-time working power transmitted by the vehicle control unit; the charger is used to obtain the real-time working power stored in the information interaction unit when charging the electric vehicle starts, and is used to determine the charging display power based on the real-time working power and the real-time charging power during the charging process of the electric vehicle, and display the charging display power. In this process, the information interaction unit is used as a transfer station for power information, and the information interaction unit stores the real-time working power of the electric vehicle in a working state. In particular, the real-time working power stored in the information interaction unit is the power information of the electric vehicle in a working state before charging begins. The real-time working power in the working state does not have the problem of false high power caused by the voltage being pulled up during charging, thereby improving the accuracy of the charging display power. When the charger is charging an electric vehicle, the charging display power is determined by the real-time working power stored in the information interaction unit and the real-time charging power during the charging process of the electric vehicle, rather than displaying the charging stage, further improving the accuracy of the power display during charging. Users can obtain accurate real-time power information through the charging display power displayed by the charger.

[0072] The present invention also provides an electric vehicle, which is equipped with a vehicle control unit and an information interaction unit; the vehicle control unit, the information interaction unit and the charger constitute an electric vehicle power display system as provided in any of the above embodiments.

[0073] It should be noted that the electric vehicle can be any vehicle that can adopt the electric vehicle power display system provided by the present invention. For example, an aerial work platform (Aerial work platform) is a vehicle product that serves various industries for high-altitude operations, equipment installation, maintenance and other mobile high-altitude operations. Aerial work platform related products mainly include: scissor-type aerial work platform, trailer-type aerial work platform, curved arm aerial work platform, straight arm aerial work platform, aluminum alloy aerial work platform, cylinder-type aerial work platform, spider-type aerial work platform seven categories. Among them, the scissor-type aerial work platform is a special equipment for high-altitude operations with a wide range of uses. Its scissor-type mechanical structure makes the lifting platform have higher stability after lifting, a wide working platform and a higher carrying capacity, which makes the high-altitude operation range larger and suitable for multiple people to work at the same time, thereby improving the efficiency and safety of high-altitude operations. The electric vehicle can be a scissor-type aerial work platform, or any other aerial work platform.

[0074] Figure 6 An example of a physical structure diagram of an electronic device is shown below. Figure 6As shown, the electronic device may include: a processor 601, a communication interface 602, a memory 603, and a communication bus 604, wherein the processor 601, the communication interface 602, and the memory 603 communicate with each other via the communication bus 604. The processor 601 may call the logic instructions in the memory 603 to execute the data processing logic preset in the vehicle control unit or the charger.

[0075] In addition, the logic instructions in the above-mentioned memory 603 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0076] On the other hand, the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the preset data processing logic in the vehicle control unit or charger provided in the above embodiments.

[0077] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the data processing logic preset in the vehicle control unit or charger provided in the above embodiments is implemented.

[0078] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0079] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An electric vehicle power display system, characterized in that: Including vehicle control unit, information interaction unit and charger; The vehicle control unit is used to transmit the real-time working power of the electric vehicle in the working state to the information interaction unit; The information interaction unit is used to store the real-time working power transmitted by the vehicle control unit; The charger is used to obtain the real-time working power stored in the information interaction unit when starting to charge the electric vehicle, and to determine the charging display power based on the real-time working power and the real-time charging power during the charging process of the electric vehicle, and to display the charging display power; it is used to judge whether the real-time charging power is greater than the real-time working power, and if so, determine that the real-time charging power is the charging display power; if not, determine that the real-time working power is the charging display power.

2. The electric vehicle power display system according to claim 1, characterized in that: The charger is used to transmit the real-time charging power to the information interaction unit during the charging process of the electric vehicle; The information interaction unit is used to store the real-time charging power transmitted by the charger; The vehicle control unit is used to obtain the real-time charging power stored in the information interaction unit when the electric vehicle enters the working state, and to determine the working display power based on the real-time charging power and the real-time working power of the electric vehicle in the working state, and display the working display power.

3. The electric vehicle power display system according to claim 2, characterized in that: The vehicle control unit is used to determine whether the real-time working power is less than the real-time charging power. If so, determine that the real-time working power is the working display power; if not, determine that the real-time charging power is the working display power.

4. The electric vehicle power display system according to claim 1, characterized in that: The vehicle control unit is configured to transmit the real-time working power to the information exchange unit at a first preset time period; The information interaction unit is used to store the real-time working power most recently transmitted by the vehicle control unit.

5. The electric vehicle power display system according to claim 2, characterized in that: The charger is configured to transmit the real-time charging power to the information interaction unit at a second preset time period; The information interaction unit is used to store the real-time charging power most recently transmitted by the charger.

6. The electric vehicle power display system according to any one of claims 1-2, characterized in that: The charger is used to convert the real-time charging voltage during the charging process of the electric vehicle into the corresponding real-time charging power based on a preset corresponding relationship between voltage and power.

7. The electric vehicle power display system according to claim 6, characterized in that: The information interaction unit is an on-board communication terminal configured for the electric vehicle.

8. The electric vehicle power display system according to claim 6, characterized in that: The vehicle control unit is an electronic control unit configured for the electric vehicle.

9. An electric vehicle, characterized in that: The electric vehicle is equipped with a vehicle control unit and an information interaction unit; the vehicle control unit, the information interaction unit and the charger constitute the electric vehicle power display system according to any one of claims 1 to 8.

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