VEHICLE CHARGE STATE INDICATION SYSTEM, VEHICLE POWER SUPPLY INDICATION SYSTEM AND VEHICLE

Abstract

Vehicle charge level display system, comprising: a charging port (10) associated with a first charging mode and a second charging mode; a first indicator lamp (30) arranged outside a vehicle; a second indicator lamp (40) arranged outside the vehicle; and a charging management unit (50) configured to control the first indicator lamp (30) and the second indicator lamp (40) to display a corresponding light effect corresponding to a charging state of the vehicle, wherein the first indicator lamp (30) and the second indicator lamp (40) are arranged to light up alternately with a gradually changing luminous intensity, in a single lighting process, the first indicator lamp (30) or the second indicator lamp (40) gradually brightens from a dark state to reach the maximum luminous intensity and then darkens again, and when the vehicle is in the first charging mode, the first indicator lamp (30) lights up first, and when the vehicle is in the second charging mode, the second indicator lamp (40) lights up first, characterized in that the power charging ports (10) comprise at least a first charging port (11) and a second charging port (12), the first indicator lamp (30) is arranged at a position near the first charging port (11) and the second indicator lamp (40) is arranged at a position near the second charging port (12).

Description

[Technical Field]The present disclosure relates to a technical field of a vehicle having new driving power. More specifically, the present disclosure relates to a vehicle state-of-charge display system, a vehicle power supply display system, and a vehicle.Priority is claimed on the basis of a Chinese Patent Application No. 202011254780.4 filed on Nov. 11, 2020. The contents of the Chinese patent application are incorporated herein by reference.[Background]A conventional vehicle has a combination of headlights and tail lamps, the headlights being configured to illuminate and display a preceding vehicle, and the tail lamps being configured to display a vehicle traveling behind. Generally, the lamps in the front part of the vehicle have a small lamp (also referred to as a clearance lamp), a low beam, a high beam, a left-right direction indicator (generally yellow), a fog lamp, and daylight. The lamps in the rear of the vehicle include a small lamp (yellow), a stop lamp (red), a backup lamp (white), a rear fog lamp (red), a left-right turn signal lamp, a fog lamp, and a rear license plate lamp.Currently, the state of charge indicator lamps for new propulsion power vehicles are always green or red. After the vehicle is connected to the charger, the red indicator lamp continues to illuminate or blink to indicate that the vehicle is being charged, and as is known, the green indicator lamp illuminates when the charging process is completed. However, it is not possible to detect the state of charge of the vehicle in order to intuitively and dynamically indicate a state of charge of the vehicle.German laid-open specifications DE 10 2014 222 695 A1 and DE 10 2018 112 143 A1 each describe generic vehicle state-of-charge display systems according to the preamble of claim 1.SummaryThe present application is made in view of the above circumstances, and an object of the present disclosure is to provide a vehicle state-of-charge display system, a vehicle power supply display system, and a vehicle to intuitively and dynamically display the charging mode of the vehicle and the charging operation.According to a first aspect of the present application, a vehicle state-of-charge display system includes a charging port associated with a first charging mode and a second charging mode; a first indicator lamp disposed outside the vehicle; a second indicator lamp disposed outside the vehicle; A charging management unit configured to control the first display lamp and the second display lamp to display a corresponding lighting effect according to a state of charge of the vehicle, wherein the first display lamp and the second display lamp are configured to alternately light up with a gradually changing illuminance in a single lighting operation, the first display lamp or the second display lamp becomes gradually brighter from a dark state to reach the maximum illuminance, and then darker, wherein when the vehicle is in the first charging mode, the first display lamp lights up first, and wherein when the vehicle is in the second charging mode, the second display lamp lights up first.According to the first aspect of the present application, a user can recognize the state of charge of the vehicle from the light effect of the indicator lamps. Moreover, it is possible to display the state of charge of the vehicle more intuitively, to make the display lamps more loud and improve the user's vision experience as well as the marketability of the vehicle.According to the first aspect of the present application, the power charging terminals include at least a first charging terminal and a second charging terminal, wherein the first indicator lamp may be disposed at a position near the first charging terminal and the second indicator lamp may be disposed at a position near the second charging terminal.Accordingly, it is possible to make the power charging port to correspond to the effect of the current flow indicated by the indicator lamps, so that the user can easily determine the charging / power supply mode at the corresponding charging port.According to an example of the first aspect of the present application, when the vehicle is in the first charging mode, a time point at which the second indicator lamp starts to light may be later than a time point at which the first indicator lamp starts to light beforehand and earlier than a time point at which the first indicator lamp previously reached the maximum illuminance, while a time point at which the second indicator lamp stops to light may be earlier than a time point at which the first indicator lamp again reaches the maximum illuminance, and when the vehicle is in the second charging mode, a time point at which the first indicator lamp starts to light may be later than a time point at which the second indicator lamp starts to light beforehand and earlier than a time point at which the second indicator lamp previously reached the maximum illuminance, during a time point, At which the first indicator lamp stops lighting, it may be earlier than a time when the second indicator lamp again reaches the maximum lighting level.According to the present example, it is possible to display the direction of the flowing current to the user dynamically in different states of charge by the lighting effect of the display lamps to more intuitively display the states of charge of the vehicle. The user can easily recognize the current charging state by judging the charging indicator lamps during the charging operation because the indicator lamps are made more louder, thereby improving the user's vision experience and the marketability of the vehicle.According to an example of the first aspect of the present application, when the vehicle is in the first charging mode, the timing at which the second indicator lamp stops lighting may be later than the timing at which the first indicator lamp starts lighting again, and when the vehicle is in the second charging mode, the timing at which the first indicator lamp stops lighting may be later than the timing at which the second indicator lamp starts lighting.According to the present example, in order to make the visual effect of the current flow clearer, there is no time when both indicator lamps stop lighting.According to an example of the first aspect of the present application, a time interval between the time when the first indicator lamp or the second indicator lamp has previously stopped lighting and the time when the first indicator lamp or the second indicator lamp starts lighting again is defined as a parameter To, and the parameter To may be larger than zero.According to the present example, it is possible to make the visual effect of the current flow clearer to further improve the user's vision experience and the vehicle's marketability.According to an example of the first aspect of the present application, a single lighting period of the first indicator lamp and the second indicator lamp may vary according to a current remaining capacity of the vehicle battery.According to the present example, it is possible to intuitively determine the current remaining capacity information of the vehicle based on the duration of the lighting period.According to an example of the first aspect of the present application, when the vehicle is in a DC charging mode as the first charging mode, the single lighting period of the first indicator lamp and the second indicator lamp is defined as a parameter To 1. When the vehicle is in an AC charging mode as the second charging mode, the single lighting period of the first indicator lamp and the second indicator lamp is defined as a parameter To 2, and the parameter T 01 may be smaller than the parameter To 2.In the present example, the state of charge of the vehicle can be determined intuitively over the duration of the lighting period.According to an example of the first aspect of the present application, the vehicle state-of-charge display system may further include a power supply terminal associated with at least a first power supply mode and a second power supply mode, wherein the charge management unit may be configured to control the first indicator lamp and the second indicator lamp to display the corresponding lighting effect according to a power supply state of the vehicle, wherein the first indicator lamp and the second indicator lamp may be configured to alternately light up with a gradually changing illuminance, wherein in the single lighting up, the first indicator lamp or the second indicator lamp may gradually light up from a dark state to reach the maximum illuminance, and then may become darker, wherein when the vehicle is in the first power supply mode, the second indicator lamp may light up first, but when the vehicle is in the second power supply mode, The first indicator lamp can light up first.According to the present example, when the vehicle is in the power supply mode, the reverse light effect is displayed, so that it can be intuitively determined whether the vehicle is in the charge mode or the power supply mode.According to an example of the first aspect of the present application, when the vehicle is in the first power supply mode, a time point at which the first indicator lamp starts to light may be later than a time point at which the second indicator lamp starts to light beforehand and earlier than a time point at which the second indicator lamp previously reached the maximum illuminance, while a time point at which the first indicator lamp stops to light may be later than a time point at which the second indicator lamp starts to light anew and earlier than a time point at which the second indicator lamp reaches the maximum illuminance again, and when the vehicle is in the second charging mode, a time point at which the second indicator lamp starts to light may be later than a time point at which the first indicator lamp starts to light beforehand and earlier than a time point, In this case, the first indicator lamp previously reached the maximum illuminance, while a time when the second indicator lamp stops lighting may be later than a time when the first indicator lamp starts lighting again and earlier than a time when the first indicator lamp again reaches the maximum illuminance.According to the present example, when the vehicle is in the power supply state, the user can determine the power supply mode of the vehicle by the lighting effect of the indicator lamps, and it is possible to display the direction of the current flow and the above-described lighting effects more dynamically. Accordingly, it is possible to make the display lamps more loud and improve the user's vision experience as well as the vehicle's marketability.According to an example of the first aspect of the present application, when the vehicle is in a DC power supply mode as the first power supply mode, a single lighting period of the first indicator lamp and the second indicator lamp is defined as a parameter To1'. When the vehicle is in an AC power supply mode as the second power supply mode, the single lighting period of the first indicator lamp and the second indicator lamp is defined as a parameter To2', and the parameter To1' may be smaller than the parameter T02'.According to the present example, it is possible to more intuitively determine the power supply mode of the vehicle based on the duration of the lighting period.According to a second aspect of the present application, a vehicle power supply state display system includes a power supply terminal associated with at least a first power supply mode and a second power supply mode; a first indicator lamp disposed outside the vehicle; a second indicator lamp disposed outside the vehicle; A power supply management unit configured to control the first display lamp and the second display lamp to display a corresponding lighting effect according to a power supply state of the vehicle, wherein the first display lamp and the second display lamp are configured to alternately light with gradually changing illuminance in a single lighting operation, the first display lamp or the second display lamp gradually lighten from a dark state to reach the maximum illuminance, and then become darker, wherein when the vehicle is in the first power supply mode, the second display lamp lights up first, and wherein when the vehicle is in the second power supply mode, the first display lamp lights up first.According to the second aspect of the present application, the user can determine the power supply mode of the vehicle based on the lighting effect of the indicator lamps. Moreover, it is possible to display the power supply state of the vehicle more intuitively, to make the display lamps more loud and improve the user's vision experience as well as the marketability of the vehicle.According to the second aspect of the present application, when the vehicle is in the first power supply mode, a time point at which the first indicator lamp starts to light may be later than a time point at which the second indicator lamp previously started to light and earlier than a time point at which the second indicator lamp previously reached the maximum illuminance, while a time point at which the first indicator lamp starts to light may be earlier than a time point at which the second indicator lamp starts to light again and earlier than a time point at which the second indicator lamp again reached the maximum illuminance, and when the vehicle is in the second power supply mode, a time point at which the second indicator lamp starts to light may be later than a time point at which the first indicator lamp previously started to light and earlier than a time point at which the first indicator lamp previously reached the maximum illuminance, while a time when the second indicator lamp stops lighting may be later than a time when the first indicator lamp starts lighting again and earlier than a time when the first indicator lamp reaches the maximum illuminance again.Accordingly, the user can determine the current power supply mode of the vehicle when the vehicle is in the power supply mode, and it is possible to display the direction of current flow dynamically and display the charging modes of the vehicle more intuitively by the above-described lighting effect of the display lamps to make the display lamps more loud and improve the user's vision experience and the marketability of the vehicle.According to a third aspect of the present application, a vehicle includes the above-described vehicle state-of-charge display system or the vehicle power supply state display system.The vehicle according to the third aspect of the present application includes the vehicle state-of-charge display system described above, so that the user can more intuitively determine the state-of-charge of the vehicle by the lighting effect of the indicator lamps. Accordingly, it is possible to make the display lamps more loud to improve the user's vision experience and the vehicle's marketability.According to the vehicle state-of-charge display system, the vehicle power supply state display system, and the vehicle using these systems, it is possible to control the display lamps to display a corresponding dynamic light effect according to the various charging / power supply modes during the charging / power supply process to make the display lamps more loud. The dynamic light effect corresponds to the different direction of the current flow during the charging process or during the power supply. The user can intuitively determine the charge / power supply state of the vehicle based on the dynamic light effect. During charging and power supply, the user only needs to observe the current dynamic light effect to determine whether the vehicle is in the charging state or the power supply state. In addition, the user can recognize whether the charging or the power supply state is in the DC or AC mode, thereby improving the user's vision experience and the vehicle's marketability.Brief Description of the DrawingsFIG. 1 is a schematic structural view showing a vehicle state-of-charge display system according to a first embodiment of the present application. FIG. 2 is a schematic structural view showing a vehicle state-of-charge display system according to a second embodiment of the present application. FIG. 3A is a schematic structural view showing a vehicle front according to the first embodiment of the present application. FIG. 3B is a schematic structural view showing a vehicle front according to the second embodiment of the present application. FIG. 3C is a schematic structural view showing a vehicle front according to the present embodiment. FIG. 4 is a timing diagram of an indicator lamp when the vehicle state-of-charge display system of FIG. 1 or 2 is in a first charging mode. FIG. 5 is a time-luminance diagram of the indicator lamp when the vehicle state-of-charge display system of FIG. 1 or 2 is in the first charging mode. FIG. 6 is a timing diagram of an indicator lamp when the vehicle state-of-charge display system of FIG. 1 or 2 is in a second charging mode. FIG. 7 is a time-luminance diagram of the indicator lamp when the vehicle state-of-charge display system of FIG. 1 or 2 is in the second charging mode. FIG. 8 is a schematic structural view showing a vehicle state-of-charge display system according to a third embodiment of the present application. FIG. 9 is a schematic structural view showing a vehicle state-of-charge display system according to a fourth embodiment of the present application. FIG. 10A is a schematic structural view showing a vehicle front according to the third embodiment of the present application. FIG. 10B is a schematic structural view showing a vehicle front according to the fourth embodiment of the present application. FIG. 10C is a schematic structural view showing a vehicle front according to the present embodiment. FIG. 11 is a time chart of an indicator lamp when the vehicle state-of-charge display system of FIG. 8 or 9 is in the first charging mode. FIG. 12 is a time-luminance diagram of the indicator lamp when the vehicle state-of-charge display system of FIG. 8 or 9 is in the first charging mode. FIG. 13 is a timing diagram of an indicator lamp when the vehicle state-of-charge display system of FIG. 8 or 9 is in a second charging mode. FIG. 14 is a time-luminance diagram of the indicator lamp when the vehicle state-of-charge display system of FIG. 8 or 9 is in the second charging mode. FIG. 15 is a schematic structural view showing a vehicle state-of-charge display system according to an example of the present application. FIG. 16 is a schematic structural view of a vehicle state-of-charge display system according to another example of the present application.DESCRIPTION OF THE EMBODIMENTSIn order to clarify the technical problem, the solutions, and the effects of the present application, embodiments of the present application will be described below with reference to the figures. The following embodiments are merely for describing the present application and do not limit it. Also, the configurations described in the figures are only specific examples of the present application, and those skilled in the art can arrive at other figures based on the accompanying figures of the present application.It is to be emphasized that when a component is "attached", "disposed", or "connected" to another component, the component may be directly connected to the other component or indirectly connected to the other component. The directions and positional relationships indicated with the terms "front", "rear", "upper", "lower", "left" and "right" are only for easy description of the directions and positional relationships based on the attached figures, and are not used to indicate or imply that the device and its element have the specific directions and positions, or are formed and operated in the specific directions and at the specific positions, so that the present disclosure is not limited by these terms. For a person of ordinary skill in the art, the specific meaning of the above-mentioned terms may be understood according to the actual situation. The terms "first", "second", and the like are used only to make the description more comprehensible, and are not used to indicate the importance of the configurations or the scope of the technical features or to indicate the implicit meaning. Unless defined otherwise, the term "multiple" corresponds to a set equal to two or more than two.FIG. 1 is a schematic structural view showing a vehicle state-of-charge display system according to an embodiment of the present application. In order to make the description simple, only the relevant parts will be described below. Referring to FIG. 1, a vehicle state-of-charge display system includes a charging port 10, a first indicator lamp 30, a second indicator lamp 40, and a charge management unit 50.The charging connection 10 is designed such that it is associated with at least a first charging mode and a second charging mode. In some examples, the charging port 10 is associated with at least one of a DC charging mode and an AC charging mode, i.e., the first charging mode is a fast charging mode and the second charging mode is a slow charging mode. The charging port 10 may be provided at the vehicle front or the rear of the vehicle, and the ports for the DC charging and the AC charging are integrated into the charging port 10. The first indicator lamp 30 and the second indicator lamp 40 may be disposed on two sides of the charging port 10. For example, the charging port 10, the first indicator lamp 30, and the second indicator lamp 40 are disposed on the front or rear bumper or in the casing of the rear trunk, the charging port being disposed between the first indicator lamp 30 and the second indicator lamp 40.As shown in FIG. 2, in some other examples, the charging port 10 includes at least the first charging port 11 and the second charging port 12. The first charging port 11 and the second charging port 12 are individually connected to each other. The first charging connection 11 is assigned to the first charging mode and the second charging connection 12 is assigned to the second charging mode. For example, the first charging terminal 11 constitutes the DC charging terminal and the second charging terminal 12 constitutes the AC charging terminal.In the vehicle, the first charging port 11 and the second charging port 12 may be provided together at the vehicle front or the rear of the vehicle. Also, either the first charging port 11 or the second charging port 12 may be provided at the vehicle front and the other at the rear of the vehicle. The first charging port 11 and the second charging port 12 may be provided on the left and right sides of the vehicle, and the first charging port 11 and the second charging port 12 may be provided on the same side of the vehicle. Generally, there are nine poles for the DC charging terminals and seven poles for the AC charging terminals.The first indicator lamp 30 and the second indicator lamp 40 are disposed outside the vehicle. The first indicator lamp 30 and the second indicator lamp 40 may be the left / right flasher, the left / right light light, the left / right daylight, or two additional indicator lamps individually mounted on the vehicle. Each of the additional indicator lamps may be a single indicator lamp or an indicator lamp group formed of a plurality of indicator lamps. The two additional indicator lights may be arranged in the front bumper or in the rear trunk hatch of the vehicle, or in both locations. The additional indicator lights may be incorporated into the left / right headlamp assemblies 62, 63 (see FIG. 3A ), or into the left / right tail lamp assemblies (not shown), or into both the headlamp assemblies 62, 63 and the left / right tail lamp assemblies (not shown). The additional indicator lamps may be placed at appropriate locations such that the first indicator lamp 30 and the second indicator lamp 40 are arranged in a horizontal manner.The charge management unit 50 is configured to control the first indicator lamp 30 and the second indicator lamp 40 to produce a corresponding lighting effect depending on the state of charge of the vehicle. The charge management unit 50 may be a power management unit (PMU), a battery management system (BMS), an electronic control unit (ECU) of an onboard computer, or other lamp control circuitry or chips.More specifically, the lighting effect corresponding to the state of charge of the vehicle is that the first indicator lamp 30 and the second indicator lamp 40 are illuminated alternately, and the illuminance is gradually changed. During a single lighting period, the first indicator lamp 30 or the second indicator lamp 40 becomes gradually brighter from a dark state and then darker again after the illuminance reaches the maximum value. In some scenarios, the first indicator lamp 30 and the second indicator lamp 40 are configured to produce the lighting effect in a pulsed lighting mode in which the first indicator lamp 30 and the second indicator lamp 40 are illuminated alternately.When the vehicle is in the first charging mode, the first indicator lamp 30 is first lit, and when the vehicle is in the second charging mode, the second indicator lamp 40 is first lit. Accordingly, a user can distinguish the two different states of charge based on the order of lighting the indicator lamps. Due to the above-described light effect, it is possible to display the state of charge of the vehicle more intuitively and dynamically in order to enhance the user's vision experience.In one example, the first charging port 11 is provided at a location near the side of the first indicator lamp 30, and the second charging port 12 is provided at a location near the side of the second indicator lamp 40. Accordingly, in the first charging mode, the first indicator lamp 30 near the first charging port 11 is controlled to be illuminated first, and in the second charging mode, the second indicator lamp 40 near the second charging port 12 is controlled to be illuminated first. Accordingly, it is possible for the user to visually distinguish the charging mode.As shown in FIG. 3A, in the present example, the first charging port 11, the second charging port 12, the first indicator lamp 30, and the second indicator lamp 40 are disposed centrally of the front bumper 100 and between the left and right headlight assemblies 62, 63. The first indicator lamp 30 is located in the vicinity of the first charging terminal 11 and the second indicator lamp 40 is located in the vicinity of the second charging terminal 12, more specifically, the second indicator lamp 40 is farther from the first charging terminal 11 than the first indicator lamp 30, and the first indicator lamp 30 is farther from the second charging terminal 12 than the second indicator lamp 40. Accordingly, when direct current is supplied to the first charging terminal 11 for charging, the manner of lighting the indicator lamps is such that the first indicator lamp 30 near the first charging terminal 11 lights first and then the second indicator lamp 40 lights up, so that a flowing light effect is produced away from the first charging terminal 11 that corresponds to the flow direction of the current supplied via the first charging terminal 11, whereby it is possible to intuitively recognize the current charging mode. It can be considered that a similar effect can be obtained when the second charging terminal 12 is supplied with alternating current during charging.Referring to FIGS. 3A, 3B, and 3C, in another example, a cover 101 may be provided in the vehicle, the cover 101 being formed to cover the charging port 10 (see FIG. 3A ) or to cover the first charging port 11 and the second charging port 12 (see FIG. 3B ) to form the charging port 10, the first charging port 11, or the second charging port 12 waterproof and prevent accidental contact or collision of the charging port 10, the first charging port 11, or the second charging port 12 with an obstacle. In the present embodiment, one side of the cover 101 is rotatably connected to the main body of the front bumper 100, and the connection portion is generally disposed so as to be located above the charging port 10, the first charging port 11, and the second charging port 12. When it is necessary to cover the assemblies, the cover 101 is rotated downward and pressed to cover the main body of the front bumper 100, as shown in FIG. 3C.Optionally, a locking member (not shown) is provided between the cover 101 and the front bumper 100. Such a locking element is similar to the locking element used in a fuel cap or in a bonnet. In this way, when the cover 101 is pressed to cover the main body of the front bumper 100, the cover 101 and the main body of the front bumper 100 are connected and fixed to each other by the locking member to prevent accidental detachment, as shown in FIG. 3C. When it is necessary to separate the cover 101 and the main body of the front bumper 100, it is possible to press the cover 101 again or release the locking member by operating a switch 102 on the front bumper 100 to open and remove the cover 101 as shown in FIGS. 3A and 3B. The switch 102 may also be mounted in the interior of the vehicle.As shown in FIGS. 3A and 3B, a lighting lamp 103 is provided in a region of the front bumper 100 in which the charging terminal 10, the first charging terminal 11 and the second charging terminal 12 are respectively disposed. The illumination lamp 103 is formed to provide illumination after the cover 101 is opened. In the example shown in FIG. 3A, the illumination lamp 103 may be disposed in the area on the side of the charging terminal 10 or in the vicinity of the charging terminal 10. In the example illustrated in FIG. 3B, the illumination lamp 103 may be disposed in the region between the first charging terminal 11 and the second charging terminal 12.In an optional example related to FIGS. 3B, 4, and 5, when the vehicle is in the first charging mode, the time T2start when the second indicator lamp 40 starts to light is later than the time T1start when the first indicator lamp 30 previously starts to light, and the time T2end when the second indicator lamp 40 stops to light is later than the time T1' start when the first indicator lamp 30 starts to light again or earlier than the time T1' end when the first indicator lamp 30 stops to light again. In this mode, the time T2start at which the second indicator lamp 40 starts lighting is 0.5 seconds to 1 second, preferably 0.75 seconds later than the time T1start at which the first indicator lamp 30 previously starts lighting.Referring to FIGS. 3B, 6, and 7, when the vehicle is in the second charging mode, the time T 1start at which the first indicator lamp 30 starts to illuminate occurs later than the time T 2start at which the second indicator lamp 40 starts to illuminate beforehand, and the time T 1end at which the first indicator lamp 30 stops illuminating occurs later than the time T 2'start at which the second indicator lamp 40 starts to illuminate beforehand or earlier than the time T 2'end at which the second indicator lamp 40 stops illuminating. In this mode, the time T1' start at which the first indicator lamp 30 starts to light is 0.5 seconds to 1 second, and preferably 0.75 seconds after the time T2' end at which the second indicator lamp 40 starts to light.In an optional example related to FIGS. 3B, 4, and 5, when the vehicle is in the first charging mode, the time T2start when the second indicator lamp 40 starts lighting is later than the time T1start when the first indicator lamp 30 previously starts lighting while being earlier than the time T1-max when the first indicator lamp 30 previously reached the maximum illuminance, and the time T2end when the second indicator lamp 40 stops lighting is earlier than the time T1'-max when the first indicator lamp 30 again reaches the maximum illuminance. Referring to FIGS. 3B, 6, and 7, when the vehicle is in the second charging mode, the time T 1start at which the first indicator lamp 30 starts lighting is later than the time T 2start at which the second indicator lamp 40 starts lighting beforehand, while being earlier than the time T 2-max at which the second indicator lamp 40 previously reached the maximum illuminance, and the time T 1end at which the first indicator lamp 30 stops lighting is earlier than the time T 2'-max at which the second indicator lamp 40 again reaches the maximum illuminance.Usually, referring to FIGS. 5 and 7, in the above-described two charging modes, during the period in which the display lamps are lit to reach the maximum illuminance and then stop lighting from the maximum illuminance, the change in illuminance is smooth and corresponds to the normal distribution curve to give the user an appealing vision experience. In other embodiments, the change in the illuminance of the indicator lamp during the period in which the indicator lamps are lit to reach the maximum illuminance, and then stop lighting from the maximum illuminance, may deviate from the smooth change shown in FIGS. 5 and 7. For example, the brightness of the display may not change smoothly, such as when the speed changes are smooth or when the change corresponds to a triangle wave or a sine wave.According to the above-described embodiments, the driving strategy is set for the two charging modes. More specifically, in the two charging modes, different display lamps are controlled to light up first, then the timings at which the display lamps start to light up and the timings at which the display lamps reach the maximum illuminance are set to be alternative, so that it is possible to give the user a smooth lighting effect. Accordingly, it is possible to dynamically display the direction of the flowing current according to the charging mode to improve the user's vision experience and the marketability of the vehicle.In an optional embodiment related to FIGS. 3B, 4, and 5, when the vehicle is in the first charging mode, the time T2end at which the second indicator lamp 40 stops lighting is later than the time T1' start at which the first indicator lamp 30 starts lighting again. Referring to FIGS. 3B, 6, and 7, when the vehicle is in the second charging mode, the time T1 end at which the first indicator lamp 30 stops lighting is later than the time T2' start at which the second indicator lamp 40 starts lighting again. According to the driving strategy provided in the embodiment, there is no time when both the indicator lamps stop lighting, so that the flowing light effect is enhanced to make the visual effect of the flowing current more dynamic.In an optional embodiment related to FIGS. 4 and 6, the time interval To is greater than zero when the time interval between the time when lighting has previously stopped and the time when lighting of the first indicator lamp 30 or the second indicator lamp 40 starts is referred to as To. For example, the time interval To is between 0.1 seconds and 0.5 seconds, preferably 0.25 seconds. With the lighting strategy provided in the present embodiment, it is possible to improve the user's vision experience and the vehicle's marketability.In one embodiment, when the vehicle is in the first charging mode, a duration of a single lighting period of the first indicator lamp 30 and the second indicator lamp 40 is referred to as a period To 1, and when the vehicle is in the second charging mode, a duration of a single lighting period of the first indicator lamp 30 and the second indicator lamp 40 is referred to as a period To 2. Here, the period T 01 is smaller than the period To 2. For example, the period T012.75 seconds and the period To2 3 seconds. According to the present embodiment, it is possible to more intuitively recognize the charging mode of the vehicle based on the lighting period, so that the user no longer has to specifically check the charging port, the charging post, and the central control device in order to be able to determine the charging mode.Referring to FIG. 8, in another embodiment, the vehicle state-of-charge display system further includes a power supply port 70 associated with at least a first power supply mode and a second power supply mode. It is understood that the power supply terminal 70 and the power charging terminal 10 may be the same terminal or different individual terminals. When the two terminals are independent of each other, the power supply terminal 70 may be disposed outside the vehicle in the same manner as the charging terminal 10, and the power supply terminal 70 may be disposed inside the vehicle, for example, as a 36-V direct current interface or a 220-V alternating current interface, or the like.In some examples, at least the DC power supply mode and the AC power supply mode are integrated into the power supply terminal 70. Thus, the first power supply mode is a rapid discharge mode and the second power supply mode is a slow discharge mode. The terminals of the DC power supply and the AC power supply are integrated into the power supply terminal 70.According to FIG. 9, in a further example, the power supply terminals 70 have at least a first power supply terminal 71 and a second power supply terminal 72, wherein the first power supply terminal 71 is assigned to the first power supply mode, while the second power supply terminal is assigned to the second power supply mode. For example, when the first power supply terminal 71 is the DC charging terminal and the second power supply terminal 72 is the AC charging terminal, the first power supply mode is the DC power supply mode and the second power supply mode is the AC power supply mode. It is understood that the first power supply terminal 71 and the first charging terminal 11 may be the same terminal or different independent terminals, and also the second power supply terminal 72 and the second charging terminal 12 may be the same terminal or different independent terminals. When the two terminals are independent of each other, the first power supply terminal 71 and the second power supply terminal 72 may be disposed outside the vehicle or inside the vehicle, such as the 36-V-DC interface or the 220-V-AC interface.For example, as shown in FIG. 10A, the first power supply terminal 71, the second power supply terminal 72, the first indicator lamp 30, and the second indicator lamp 40 are disposed centrally of the front bumper 100 and between the left / right headlight assemblies 62, 63. Specifically, the second indicator lamp 30 is located farther from the first power supply terminal 71 than the first indicator lamp 30, and the first indicator lamp 30 is located farther from the second power supply terminal 72 than the second indicator lamp 40 is, and the first indicator lamp 30 is located farther from the second power supply terminal 72 than the second indicator lamp 40 When DC discharge is performed by the first power supply terminal 71, the indicator lamps are illuminated so that the second indicator lamp 40 located farther from the first power supply terminal 71 is first illuminated and then the first indicator lamp 30 is illuminated so as to produce a smooth lighting effect from a position away from the first power supply 71 so as to approach the first power supply terminal 71 so as to correspond to the direction of flow of the power output via the first power supply terminal 71, wherein it is possible to intuitively recognize the current power supply mode. It is conceivable that a similar effect can be obtained when the second power supply terminal 72 performs the discharge.Referring to FIGS. 10A and 10B, in another example, a cover 101 may be provided in the vehicle, the cover 101 being formed to cover the first power supply terminal 71 and the second power supply terminal 72 to form the first power supply terminal 71 and the second power supply terminal 72 waterproof and prevent accidental contact or collision with the first power supply terminal 71 and the second power supply terminal 72 by any obstacle. In the present embodiment, one side of the cover 101 is rotatably connected to the main body of the front bumper 100, and the connecting portion is generally disposed so as to be located above the first power supply terminal 71 and the second power supply terminal 72. When it is necessary to cover the assemblies, the cover 101 is rotated and pressed downward to cover the main body of the front bumper 100, as shown in FIG. 10B.Optionally, a locking part (not shown) for locking the cover 101 and the front bumper 100 is provided between these two components. Such a locking element is similar to the locking element used in a fuel cap or in a bonnet. In this way, when the cover 101 is pressed to cover the main body of the front bumper 100, the cover 101 and the main body of the front bumper 100 are connected and fixed to each other by the locking member to prevent accidental detachment, as shown in FIG. 10B. When it is necessary to separate the cover 101 and the main body of the front bumper 100, it is possible to press the cover 101 again or release the locking component by operating a switch 102 on the front bumper 100 to open and remove the cover 101 as shown in FIG. 10A. The switch 102 may also be mounted in the interior of the vehicle.As shown in FIG. 10A, an illumination lamp 103 is provided in a region of the front bumper 100 in which the first power supply terminal 71 and the second power supply terminal 72 are disposed. The illumination lamp 103 is formed to provide illumination after the cover 101 is opened. In the present example, the illumination lamp 103 may be disposed in the region between the first power supply terminal 71 and the second power supply terminal 72.Optionally, the charge management unit 50 also controls the lighting effect of the first indicator lamp 30 and the second indicator lamp 40 according to the power supply state of the vehicle. The first indicator lamp 30 and the second indicator lamp 40 are illuminated alternately, and the illuminance gradually changes. During a single lighting period, the first indicator lamp 30 or the second indicator lamp 40 becomes gradually brighter from a dark state, and then becomes darker again after the illuminance reaches the maximum value. In some scenarios, the first indicator lamp 30 and the second indicator lamp 40 are configured to produce the lighting effect in a pulsed lighting mode in which the first indicator lamp 30 and the second indicator lamp 40 are illuminated alternately.According to the present embodiment, when the vehicle is in the power supply state (discharge), the lighting effect opposite to the charging state is displayed, so that it is possible to intuitively determine whether the vehicle is in the charging state or in the power supply mode, and further determine the power supply mode of the vehicle based on the lighting effect of the display lamps.In an embodiment, referring to FIGS. 10A, 11 and 12, when the vehicle is in the first power supply mode, the time T1start when the first indicator lamp 30 starts lighting is later than the time T2start when the second indicator lamp 40 starts lighting beforehand, while being earlier than the time T2-max when the second indicator lamp 40 previously reached the maximum illuminance, and the time T1end when the first indicator lamp 30 stops lighting is later than the time T2' start when the second indicator lamp 40 starts lighting anew, whereas being earlier than the time T2' max when the second indicator lamp 40 reaches the maximum illuminance. In this mode, the time T1start at which the first indicator lamp 30 starts lighting is 0.5 seconds to 1 second, and preferably 0.75 seconds later than the time T2start at which the second indicator lamp 40 previously starts lighting.Referring to FIGS. 10A, 13, and 14, when the vehicle is in the second power supply mode, the time T2start when the second indicator lamp 40 starts lighting is later than the time T1start when the first indicator lamp 30 starts lighting beforehand while being earlier than the time T1-max when the first indicator lamp 30 previously reached the maximum illuminance, and the time T2end when the second indicator lamp 40 stops lighting is later than the time T1'start when the first indicator lamp 30 starts lighting anew while being earlier than the time T1'-max when the first indicator lamp 30 reaches the maximum illuminance. In this mode, the time T2start at which the second indicator lamp 40 starts lighting is 0.5 seconds to 1 second, preferably 0.75 seconds later than the time T1start at which the first indicator lamp 30 starts lighting.In an optional example, referring to FIGS. 10A, 11 and 12, when the vehicle is in the first power supply mode, the time T1start at which the first indicator lamp 30 starts to illuminate is later than the time T2start at which the second indicator lamp 40 previously starts to illuminate, and the time T1end at which the first indicator lamp 30 stops to illuminate is later than the time T2'start at which the second indicator lamp 40 starts to illuminate again or earlier than the time T2'end at which the second indicator lamp 40 stops to illuminate. Referring to FIGS. 10A, 13, and 14, when the vehicle is in the second power supply mode, the time T2start at which the second indicator lamp 40 starts to illuminate occurs later than the time T1start at which the first indicator lamp 30 previously starts to illuminate, and the time T2end at which the second indicator lamp 40 stops to illuminate occurs later than the time T1' start at which the first indicator lamp 30 starts to illuminate again or earlier than the time T1' end at which the first indicator lamp 30 stops illuminating.Referring to FIGS. 12 and 14, in the above-described two power supply modes, during the operation in which the display lamps are lit to reach the maximum illuminance and then extinguished again from the maximum illuminance, the change in illuminance is made smooth and corresponds to the normal distribution curve to give the user an appealing visual experience. In other embodiments, the change in the illumination level of the indicator light during the period in which the indicator lights are illuminated to reach the maximum illumination level and then re-illuminate from the maximum illumination level may vary from the smooth change as shown in FIGS. 12 and 14. For example, the brightness of the display may not change smoothly, such as when the speed changes are smooth or when the change corresponds to a triangle wave or a sine wave.According to the two embodiments described above, the different driving strategy in the two power supply modes with respect to the charging modes is set so that it is possible to intuitively determine whether the vehicle is in the charge state or the power supply state. In the two power supply modes, different indicator lamps are first lighted, and then the timing at which the indicator lamps start lighting and the timing at which the indicator lamps reach the maximum illuminance are alternatively set, so that it is possible to give the user a smooth lighting effect. Accordingly, it is possible to dynamically display the direction of the flowing current according to the charging mode to improve the user's vision experience and the marketability of the vehicle.In one embodiment, the time interval To' in the power supply state of the vehicle is greater than zero when the time interval between the time when lighting has previously stopped and the time when lighting of the first indicator lamp 30 or the second indicator lamp 40 starts is referred to as To'. The time interval To may be identical to the time interval To', but may also be different, for example the time interval To' may be 0.1 seconds to 0.5 seconds, preferably 0.25 seconds. Similar to the lighting strategy in the state of charge, in the present embodiment, the visual effect of the flowing current becomes more pronounced, so that it is possible to improve the user's vision experience and the vehicle's marketability.In one embodiment, when the vehicle is in the DC discharge mode as the first power supply mode, a duration of a single lighting period of the first indicator lamp 30 and the second indicator lamp 40 is referred to as a period To1', and when the vehicle is in the AC discharge mode as the second charging mode, a duration of a single lighting period of the first indicator lamp 30 and the second indicator lamp 40 is referred to as a period To2'. Here, the period To1' is shorter than the period T02'. For example, the period To1' is 2.5 seconds and the period To2' is 2.75 seconds. According to the present embodiment, it is possible to more intuitively determine the charging mode of the vehicle based on the lighting period.In one embodiment, the charge management unit 50 is configured to, when the vehicle is in the charge state or the power supply state, control the duration of the single lighting period of the first indicator lamp 30 and the second indicator lamp 40 to be different depending on the current capacity of the battery in the vehicle. For example, in the case that the battery capacity is relatively sufficient (for example, when the battery capacity is equal to or more than 70% of the full capacity), the duration of the single lighting period of the first indicator lamp 30 and the second indicator lamp 40 is relatively long, for example, between 2.75 seconds and 3.25 seconds, generally 3 seconds, and the time for which the lighting intensity reaches the maximum is the half time of the single lighting period. For example, in the case where the battery capacity is in the middle range (for example, when the battery capacity is 30% to 70%), the duration of the single lighting period of the first display lamp 30 and the second display lamp 40 is relatively short, for example, from 2 seconds to 2.75 seconds, generally 2.5 seconds, and the time for which the lighting intensity reaches the maximum is also the half time of the single lighting period. In the case where the battery capacity is insufficient (e.g., when the battery capacity is less than 30%), the duration of the single lighting period of the first indicator lamp 30 and the second indicator lamp 40 is relatively short, e.g., between 1.5 seconds and 2 seconds, generally 1.75 seconds, and the time for which the illuminance reaches the maximum is also the half time of the single lighting period. According to the present embodiment, it is possible to intuitively determine the state of charge of the vehicle battery by the length of the lighting period in order to be able to determine the required time for charging or power supply in advance.In one embodiment, the charge management unit 50 is configured to, when the vehicle is in the charge state or the power supply state, control the color of the single lighting period of the first indicator lamp 30 and the second indicator lamp 40 to be different depending on the current capacity of the battery in the vehicle. For example, the first indicator lamp 30 and the second indicator lamp 40 illuminate green during charging or power supply when the battery capacity is relatively sufficient (e.g., when the battery capacity is equal to or greater than 70% of full capacity). For example, when the battery capacity is in the middle range (e.g., between 30% and 70%), the first indicator lamp 30 and the second indicator lamp 40 are lit orange during the charging or the power supply. For example, when the battery capacity is insufficient (e.g., less than 30%), the first indicator lamp 30 and the second indicator lamp 40 are lit red during the charging or the power supply. According to the present embodiment, it is possible to intuitively determine the state of the battery capacity in the vehicle based on the color of the indicator lamps in order to determine the required time for charging or power supply in advance.Moreover, the color of the indicator lamps may be different in the single lighting period in the DC charging mode (power supply) and the AC charging mode (power supply). For example, for the same battery capacity, the gray level of the color displayed in the AC charging mode (power supply) is higher than that displayed in the DC charging mode (power supply). For example, when the battery capacity is 80%, the indicator lamp indicates a deeper green in the DC charging mode (power supply) than in the AC charging mode (power supply). Other modes of operation lead to similar solutions and therefore the description is omitted.Referring to FIG. 15, there is shown a vehicle power supply state display system according to a third aspect of the present application. The vehicle power supply state display system includes the power supply terminal 70, the first indicator lamp 30, the second indicator lamp 40, and a power supply management unit 55. The first indicator lamp 30 and the second indicator lamp 40 are disposed outside the vehicle. The first indicator lamp 30 and the second indicator lamp 40 may be the left / right flasher, small left / right lights, left / right daylight, or two additional indicator lamps individually mounted on the vehicle. Each of the additional indicator lamps may be a single indicator lamp or an indicator lamp group formed of a plurality of indicator lamps. The two additional indicator lights may be located in the front bumper, in the rear trunk tailgate of the vehicle, or in both locations. The additional indicator lights may be incorporated into the left / right headlamp assemblies 62, 63 (see FIG. 10A ), or into the left / right tail lamp assemblies (not shown), or into both the headlamp assemblies 62, 63 and the left / right tail lamp assemblies (not shown). The additional indicator lamps may be placed at appropriate locations such that the first indicator lamp 30 and the second indicator lamp 40 are arranged in a horizontal manner.The power supply management unit 55 is configured to control the first indicator lamp 30 and the second indicator lamp 40 to produce a lighting effect according to the power supply state of the vehicle. The power supply management unit 55 may be provided together with the charge management unit 50 or may be provided individually. The power supply management unit 55 may be a power management unit (PMU), a battery management system (BMS), an electronic control unit (ECU) of an onboard computer, or other lamp control circuitry, or other chips.Referring to FIG. 15, in one example, the power supply port 70 is associated with at least a first power supply mode and a second power supply mode. It is assumed that the first power supply mode represents the rapid power discharge mode and the second power supply mode represents the slow discharge mode. The DC discharge terminal and the AC discharge terminal are integrated with the power supply terminal 70. The power supply terminal 70 may be disposed in the vehicle front or the vehicle rear. The first indicator lamp 30 and the second indicator lamp 40 may be disposed on two sides of the power supply terminal 70, for example, the power supply terminal 70, the first indicator lamp 30, and the second indicator lamp 40 are disposed in the front bumper or the rear bumper or in the back door of the trunk, the power supply terminal 70 being located between the first indicator lamp 30 and the second indicator lamp 40.Referring to FIG. 16, in another example, the power supply terminals 70 include at least a first power supply terminal 71 and a second power supply terminal 72, the first power supply terminal 71 being associated with the first power supply mode while the second power supply terminal is associated with the second power supply mode. For example, when the first power supply terminal 71 is the DC charging terminal and the second power supply terminal 72 is the AC charging terminal, the first power supply mode corresponds to the DC power supply mode or a fast charging mode for the external device, and the second power supply mode corresponds to the AC power supply mode or a slow charging mode for the external device.In the vehicle, the first power supply terminal 71 and the second power supply terminal 72 may be arranged together in the vehicle front or at the vehicle rear, but it is also possible to arrange one of the first power supply terminal 71 and the second power supply terminal 72 in the vehicle front while the other is arranged at the vehicle rear. The first power supply terminal 71 and the second power supply terminal 72 may be disposed on the left and right sides of the vehicle or on the same side of the vehicle. The first power supply terminal 71 and the second power supply terminal 72 may constitute the standard charging pillar interface. Generally, the DC power interface comprises nine poles and the AC power interface comprises seven poles. The first power supply terminal 71 and the second power supply terminal 72 may be disposed outside the vehicle or inside the vehicle, for example, as a 36-V direct current interface or a 220-V alternating current interface.For example, as shown in FIG. 10A, the first power supply terminal 71, the second power supply terminal 72, the first indicator lamp 30, and the second indicator lamp 40 are disposed centrally of the front bumper 100 and between the left / right headlight assemblies 62, 63. The first indicator lamp 30 is located in the vicinity of the first power supply terminal 71 and the second indicator lamp 40 is located in the vicinity of the second power supply terminal 72, Thus, it is possible to match the flow direction of the power output via the first power supply terminal 71, whereby it is possible to intuitively judge the current power supply mode. It is conceivable that a similar effect can be obtained when the second power supply terminal 72 performs the discharge.Referring to FIGS. 10A, 10B, and 10C, in another example, a cover 101 may be provided in the vehicle, the cover 101 being formed to cover the power supply terminal 70 (see FIG. 10A ) or the first power supply terminal 71 and the second power supply terminal 72 (see FIG. 10B ) to form the power supply terminal 70, the first power supply terminal 71, and the second power supply terminal 72 in a waterproof manner and to prevent accidental contact or collision of the power supply terminal 70, the first power supply terminal 71, and the second power supply terminal 72 with an obstacle. In the present embodiment, one side of the cover 101 is rotatably connected to the main body of the front bumper 100, and the connection portion is generally disposed so as to be located above the power supply terminal 70, the first power supply terminal 71, and the second power supply terminal 72. When it is necessary to cover the assemblies, the cover 101 is rotated and pressed downward to cover the main body of the front bumper 100, as shown in FIG. 10C.Optionally, a locking part (not shown) is provided between the cover 101 and the front bumper 100 for locking the same. Such a locking element is similar to the locking element used in a fuel cap or in a bonnet. In this way, when the cover 101 is pressed to cover the main body of the front bumper 100, the cover 101 and the main body of the front bumper 100 are connected and fixed to each other by the locking member to prevent accidental detachment, as shown in FIG. 10C. When it is necessary to separate the cover 101 and the main body of the front bumper 100, it is possible to press the cover 101 again or release the locking component by operating a switch 102 on the front bumper 100 to open and remove the cover 101 as shown in FIG. 10A. The switch 102 may also be mounted in the interior of the vehicle.As shown in FIGS. 10A and 10B, a lighting lamp 103 is provided in a region of the front bumper 100 in which the power supply terminal 70, the first power supply terminal 71, and the second power supply terminal 72 are disposed. The illumination lamp 103 is formed to provide illumination after the cover 101 is opened. In the example shown in FIG. 10A, the illumination lamp 103 is disposed in the region on the side of the power supply terminal 70 or surrounds the power supply terminal 70.When the vehicle is in the state of charging the external device (i.e., the external device is supplied with power), the power supply management unit 55 is configured to control the first indicator lamp 30 and the second indicator lamp 40 to perform a corresponding lighting effect according to the power supply state of the vehicle. At this time, the first indicator lamp 30 and the second indicator lamp 40 are illuminated alternately, and the illuminance is gradually changed. During a single lighting period, the first indicator lamp 30 or the second indicator lamp 40 becomes gradually brighter from a dark state and darker again after the illuminance reaches the maximum value. When the vehicle is in the first power supply mode, the second indicator lamp 40 is first lit, and when the vehicle is in the second power supply mode, the first indicator lamp 30 is first lit. Some scenarios are intended that the first indicator lamp 30 and the second indicator lamp 40 are configured to produce the lighting effect in a pulsed lighting mode in which the first indicator lamp 30 and the second indicator lamp 40 are illuminated alternately.According to the present embodiment, when the vehicle is in the power supply state (for the external device), the user can recognize the power supply mode of the vehicle from the lighting effect of the display lamps, whereby it is possible to display the power supply status of the vehicle more intuitively to make the display lamps more loud, to improve the user's vision experience and the marketability of the vehicle.In an example, referring to FIGS. 10A, 11 and 12, when the vehicle is in the first power supply mode, the time T1start when the first indicator lamp 30 starts lighting is later than the time T2start when the second indicator lamp 40 starts lighting beforehand, whereas it is earlier than the time T2-max when the second indicator lamp 40 previously reaches the maximum illuminance, and the time T1end when the first indicator lamp 30 stops lighting is later than the time T2' start when the second indicator lamp 40 starts lighting anew, whereas it is earlier than the time T2' max when the second indicator lamp 40 reaches the maximum illuminance anew. In this mode, the time T1start at which the first indicator lamp 30 starts lighting is 0.5 seconds to 1 second, preferably 0.75 seconds later than the time T2start at which the second indicator lamp 40 starts lighting.Referring to FIGS. 10A, 13, and 14, when the vehicle is in the second power supply mode, the time T2start when the second indicator lamp 40 starts lighting is later than the time T1start when the first indicator lamp 30 starts lighting beforehand, whereas it is earlier than the time T1-max when the first indicator lamp 30 previously reached the maximum illuminance, and the time T2end when the second indicator lamp 40 stops lighting is later than the time T1' start when the first indicator lamp 30 starts lighting anew, whereas it is earlier than the time T1'-max when the first indicator lamp 30 reaches the maximum illuminance. In this mode, the time T2start at which the second indicator lamp 40 starts lighting is 0.5 seconds to 1 second, and preferably 0.75 seconds later than the time T1start at which the first indicator lamp 30 starts lighting.In an optional example, referring to FIGS. 10A, 11 and 12, when the vehicle is in the first power supply mode, the time T1start at which the first indicator lamp 30 starts to illuminate is later than the time T2start at which the second indicator lamp 40 previously starts to illuminate, and the time T1end at which the first indicator lamp 30 stops illuminating is later than the time T2' start at which the second indicator lamp 40 starts to illuminate again or earlier than the time T2' end at which the second indicator lamp 40 stops illuminating. Referring to FIGS. 10A, 13, and 14, when the vehicle is in the second power supply mode, the time T2start at which the second indicator lamp 40 starts to illuminate is later than the time T1start at which the first indicator lamp 30 previously starts to illuminate, and the time T2end at which the second indicator lamp 40 stops illuminating is later than the time T1'start at which the first indicator lamp 30 starts to illuminate again or earlier than the time T1'end at which the first indicator lamp 30 stops illuminating.As is well known, referring to FIGS. 12 and 14, in the above-described two power supply modes, during the operation in which the indicator lamps are lit to reach the maximum illuminance and then extinguished again from the maximum illuminance, the change in illuminance represents a smooth change corresponding to the normal distribution curve to give the user an appealing vision experience. In other embodiments, the change in the illumination level of the indicator lamp during the period in which the indicator lamps illuminate to reach the maximum illumination level and then stop illuminating again from the maximum illumination level may vary from the smooth change shown in FIGS. 12 and 14. For example, the brightness of the display may not change smoothly, such as when the speed changes smoothly or when the brightness changes according to a triangle curve.According to the two embodiments described above, the different driving strategy is set in the two power supply modes with respect to those of the charging modes, so that it is possible to intuitively determine whether the vehicle is in the charge state or the power supply state. In the two power supply modes, first, various indicator lamps are lighted, then the timing at which the indicator lamps start lighting and the timing at which the indicator lamps reach the maximum illuminance are alternatively set, so that it is possible to give the user a smooth lighting effect. Accordingly, it is possible to dynamically display the direction of the flowing current according to each charging mode to improve the user's vision experience and the marketability of the vehicle.In one embodiment, the time interval To' in the power supply state of the vehicle is greater than zero when the time interval between the time when lighting has previously stopped and the time when lighting of the first indicator lamp 30 or the second indicator lamp 40 starts is referred to as T0'. The time interval T0 may be identical to the time interval T0', or the time interval T0 may be different from the time interval T0'; for example, the time interval T0' may be 0.1 seconds to 0.5 seconds, preferably 0.25 seconds. According to the present embodiment, the visual effect of the current flow becomes clearer, so that it is possible to improve the user's vision experience and the marketability of the vehicle.In one embodiment, when the vehicle is in the DC discharge mode as the first power supply mode, a duration of a single lighting period of the first indicator lamp 30 and the second indicator lamp 40 is referred to as a period T01', and when the vehicle is in the AC discharge mode as the second charging mode, a duration of a single lighting period of the first indicator lamp 30 and the second indicator lamp 40 is referred to as a period T02'. Here, the period T01' is smaller than the period T02'. For example, the period T01' is 2.5 seconds and the period T02' is 2.75 seconds. According to the present embodiment, it is possible to more intuitively determine the charging mode of the vehicle based on the lighting period.In one embodiment, the power supply management unit 55 is configured to, when the vehicle is in the power supply state, control the duration of the single lighting period of the first indicator lamp 30 and the second indicator lamp 40 to be different depending on the current capacity of the battery in the vehicle. For example, in the case that the battery capacity is relatively sufficient (for example, when the battery capacity is equal to or more than 70% of the full capacity), the duration of the single lighting period of the first indicator lamp 30 and the second indicator lamp 40 is relatively long, for example, from 2.75 seconds to 3.25 seconds, generally 3 seconds, and the time for which the lighting intensity reaches the maximum is the half time of the single lighting period. For example, in the case where the battery capacity is in the middle range (for example, when the battery capacity is 30% to 70%), the duration of the single lighting period of the first display lamp 30 and the second display lamp 40 is relatively short, for example, between 2 seconds and 2.75 seconds, generally 2.5 seconds, and the time for which the lighting intensity reaches the maximum is also the half time of the single lighting period. In the case where the battery capacity is insufficient (e.g., when the battery capacity is less than 30%), the duration of the single lighting period of the first indicator lamp 30 and the second indicator lamp 40 is relatively short, e.g., between 1.5 seconds and 2 seconds, generally 1.75 seconds, and the time for which the illuminance reaches the maximum is also the half time of the single lighting period. According to the present embodiment, it is possible to intuitively determine the state of charge of the vehicle battery by the duration of the lighting period to determine the required time for charging or power supply in advance.In one embodiment, the power supply management unit 55 is configured to, when the vehicle is in the power supply state, control the color of the single lighting period of the first indicator lamp 30 and the second indicator lamp 40 to be different depending on the current capacity of the battery in the vehicle. For example, the first indicator lamp 30 and the second indicator lamp 40 illuminate green during charging or power supply when the battery capacity is relatively sufficient (e.g., when the battery capacity is equal to or greater than 70% of full capacity). For example, when the battery capacity is in the middle range (e.g., between 30% and 70%), the first indicator lamp 30 and the second indicator lamp 40 are lit orange during the charging or the power supply. For example, when the battery capacity is insufficient (e.g., less than 30%), the first indicator lamp 30 and the second indicator lamp 40 are lit red during the charging or the power supply. According to the present embodiment, it is possible to intuitively determine the level of battery capacity in the vehicle based on the color of the indicator lamps.Moreover, the color of the indicator lamps may be different in the single lighting period in the DC charging mode (power supply) and the AC charging mode (power supply). For example, for the same battery capacity, the gray level of the color displayed in the AC charging mode (power supply) is higher than that of the color displayed in the DC charging mode (power supply). For example, when the battery capacity is 80%, the indicator lamp indicates a deeper green in the DC charging mode (power supply) than in the AC charging mode (power supply). Other modes of operation lead to similar solutions and therefore the description is omitted.According to a third aspect of the present application, there is provided a vehicle including the above-described vehicle state-of-charge display system or the vehicle power supply state display system. By providing the above-described vehicle state-of-charge display system or the vehicle power supply state display system, the user can determine the charging mode and the power supply mode of the vehicle through the lighting sequence or the illustrated flowing direction of the light effect of the first indicator lamp 30 and the second indicator lamp 40. Accordingly, it is possible to display the state of charge or the state of discharge of the vehicle and the battery capacity of the vehicle more intuitively, so that the display lights become more loud to improve the user's vision experience and the marketability of the vehicle.When the vehicle state-of-charge display system or the vehicle power supply state display system is in operation and the cover for protecting the first charging port 11 or the second charging port 12 is opened, the first indicator lamp 30 and the second indicator lamp 40 blinks a plurality of times. When a charging pin or the external device is connected to the single charging port 10, the first charging port 11, the second charging port 12, the single power supply port 70, the first power supply port 71, or the second power supply port 72 to enter the handshake state, the first indicator lamp 30 and the second indicator lamp 40 continue to blink. After the hand sharing is successfully performed and the state of charge or the power supply state has entered, the first indicator lamp 30 and the second indicator lamp 40 show the lighting effect as described in the above-mentioned embodiments and examples. After the charging operation or the power supply operation, the first indicator lamp 30 and the second indicator lamp 40 continue to illuminate, and the color of the lamps may be set to be different depending on the state at the completion of the charging operation or the state at the completion of the power supply. Thereafter, the cover is closed, and the first indicator lamp 30 and the second indicator lamp 40 blinks a plurality of times. If a malfunction occurs during the above-described operation and the system is required to issue an alert message, the first indicator lamp 30 and the second indicator lamp 40 blink in red to display the alert message.Although the respective embodiments and modifications of the present disclosure have been described above, the technical scope of the present disclosure is not limited to the above-described embodiments and configurations in the respective embodiments and modifications within the scope without departing from the spirit of the present disclosure. It is possible to change the combination of elements, make various changes to each constituent element, or remove individual constituent elements. The present disclosure is not limited by the above description, but only by the appended claims.

Claims

A vehicle state-of-charge display system, comprising: a charging port (10) associated with a first charging mode and a second charging mode; a first indicator lamp (30) disposed outside a vehicle; a second indicator lamp (40) disposed outside the vehicle; and a charge management unit (50) configured to control the first indicator lamp (30) and the second indicator lamp (40) to display a corresponding lighting effect corresponding to a state of charge of the vehicle, wherein the first indicator lamp (30) and the second indicator lamp (40) are configured to alternately light with a gradually changing illuminance, in a single lighting operation, the first indicator lamp (30) and the second indicator lamp (40), respectively, gradually light from a dark state to reach the maximum illuminance, and then darker again, and when the vehicle is in the first charging mode, first the first indicator lamp (30) lights up, and when the vehicle is in the second charging mode, first the second indicator lamp (40) lights up, characterized in that the power charging terminals (10) comprise at least a first charging terminal (11) and a second charging terminal (12), the first indicator lamp (30) is arranged at a position close to the first charging terminal (11), and the second indicator lamp (40) is arranged at a position close to the second charging terminal (12).The vehicle state-of-charge display system according to claim 1, wherein when the vehicle is in the first charging mode, a time point at which the second indicator lamp (40) starts lighting is later than a time point at which the first indicator lamp (30) starts lighting beforehand, and earlier than a time point at which the first indicator lamp (30) previously reached the maximum illuminance, while a time point at which the second indicator lamp (40) stops lighting is earlier than a time point at which the first indicator lamp (30) again reached the maximum illuminance, and when the vehicle is in the second charging mode, a time point at which the first indicator lamp (30) starts lighting is later than a time point at which the second indicator lamp (40) previously started lighting, and earlier than a time point at which the second indicator lamp (40) previously reached the maximum illuminance, while a time when the first indicator lamp (30) stops lighting is earlier than a time when the second indicator lamp (40) again reaches the maximum illuminance.The vehicle state-of-charge display system according to claim 2, wherein when the vehicle is in the first charging mode, the timing at which the second indicator lamp (40) stops lighting is later than the timing at which the first indicator lamp (30) starts lighting again, and when the vehicle is in the second charging mode, the timing at which the first indicator lamp (30) stops lighting is later than the timing at which the second indicator lamp (40) starts lighting again.The vehicle state-of-charge display system according to claim 1, wherein a time interval between the time when the first indicator lamp (30) or the second indicator lamp (40) has previously stopped lighting and the time when the first indicator lamp (30) or the second indicator lamp (40) starts lighting again is defined as a parameter T0, and the parameter T0 is greater than 0.The vehicle state-of-charge display system according to claim 1, wherein a single lighting period of the first (30) and second (40) indicator lamps varies according to a current remaining capacity of the vehicle battery.The vehicle state-of-charge display system according to any one of claims 1, 2, 3, or 5, wherein when the vehicle is in a DC charging mode as the first charging mode, the single lighting period of the first indicator lamp (30) and the second indicator lamp (40) is defined as a parameter T01, when the vehicle is in an AC charging mode as the second charging mode, the single lighting period of the first indicator lamp (30) and the second indicator lamp (40) is defined as a parameter T02, and the parameter T01 is smaller than the parameter T02.The vehicle state-of-charge display system according to any one of claims 1, 4 or 5, further comprising a power supply terminal (70) associated with at least a first power supply mode and a second power supply mode, wherein the charge management unit (50) is configured to control the first indicator lamp (30) and the second indicator lamp (40) to display the corresponding lighting effect according to a power supply status of the vehicle, the first indicator lamp (30) and the second indicator lamp (40) are configured to alternately light up with a gradually changing illuminance, the first indicator lamp (30) and the second indicator lamp (40) gradually light up from a dark state to reach the maximum illuminance at the time of single lighting, and then to be darker again, and when the vehicle is in the first power supply mode, the second indicator lamp (40) lights up first, When the vehicle is in the second power supply mode, the first indicator lamp (30) lights up first, and when the vehicle is in the first power supply mode, a time when the first indicator lamp (30) starts lighting up is later than a time when the second indicator lamp (40) starts lighting up beforehand and earlier than a time when the second indicator lamp (40) previously reached the maximum illuminance, while a time when the first indicator lamp (30) stops lighting up is later than a time when the second indicator lamp (40) starts lighting up again and earlier than a time when the second indicator lamp (40) starts lighting up again, and when the vehicle is in the second charging mode, a time when the second indicator lamp (40) starts lighting up is later than a time, In addition, in the case where the first indicator lamp (30) previously started lighting and earlier than a time when the first indicator lamp (30) previously reached the maximum illuminance, in the case where the second indicator lamp (40) stops lighting, a time when the second indicator lamp (40) stops lighting is later than a time when the first indicator lamp (30) starts lighting again and earlier than a time when the first indicator lamp (30) reaches the maximum illuminance again.The vehicle state-of-charge display system according to claim 7, wherein when the vehicle is in a DC power supply mode as the first power supply mode, a single lighting period of the first indicator lamp (30) and the second indicator lamp (40) is defined as a parameter T01' when the vehicle is in an AC power supply mode as the second power supply mode, the single lighting period of the first indicator lamp (30) and the second indicator lamp (40) is defined as a parameter T02', and the parameter T01' is smaller than the parameter T02'.A vehicle state-of-charge display system, comprising: a charging port (10) associated with a first charging mode and a second charging mode; a first indicator lamp (30) disposed outside a vehicle; a second indicator lamp (40) disposed outside the vehicle; and a charge management unit (50) configured to control the first indicator lamp (30) and the second indicator lamp (40) to display a corresponding lighting effect corresponding to a state of charge of the vehicle, wherein the first indicator lamp (30) and the second indicator lamp (40) are configured to alternately light with a gradually changing illuminance, in a single lighting operation, the first indicator lamp (30) and the second indicator lamp (40), respectively, gradually light from a dark state to reach the maximum illuminance, and then darker again, When the vehicle is in the first charging mode, the first indicator lamp (30) is first illuminated, and when the vehicle is in the second charging mode, the second indicator lamp (40) is first illuminated, characterized in that when the vehicle is in the first charging mode, a time at which the second indicator lamp (40) starts to illuminate is later than a time at which the first indicator lamp (30) starts to illuminate beforehand and earlier than a time at which the first indicator lamp (30) previously reached the maximum illuminance, while a time at which the second indicator lamp (40) stops to illuminate is earlier than a time at which the first indicator lamp (30) again reaches the maximum illuminance, and when the vehicle is in the second charging mode, a time at which the first indicator lamp (30) starts to illuminate is later than a time, at which the second indicator lamp (40) previously started lighting and earlier than a time when the second indicator lamp (40) previously reached the maximum illuminance, while a time when the first indicator lamp (30) stops lighting is earlier than a time when the second indicator lamp (40) again reaches the maximum illuminance.A vehicle state-of-charge display system, comprising: a charging port (10) associated with a first charging mode and a second charging mode; a first indicator lamp (30) disposed outside a vehicle; a second indicator lamp (40) disposed outside the vehicle; and a charge management unit (50) configured to control the first indicator lamp (30) and the second indicator lamp (40) to display a corresponding lighting effect corresponding to a state of charge of the vehicle, wherein the first indicator lamp (30) and the second indicator lamp (40) are configured to alternately light with a gradually changing illuminance, in a single lighting operation, the first indicator lamp (30) and the second indicator lamp (40), respectively, gradually light from a dark state to reach the maximum illuminance, and then darker again, and when the vehicle is in the first charging mode, first the first indicator lamp (30) lights up, and when the vehicle is in the second charging mode, first the second indicator lamp (40) lights up, characterized in that a time interval between the time when the first indicator lamp (30) or the second indicator lamp (40) has previously stopped lighting up and the time when the first indicator lamp (30) or the second indicator lamp (40) starts lighting up again is defined as a parameter T0, and the parameter T0 is greater than 0.A vehicle state-of-charge display system, comprising: a charging port (10) associated with a first charging mode and a second charging mode; a first indicator lamp (30) disposed outside a vehicle; a second indicator lamp (40) disposed outside the vehicle; and a charge management unit (50) configured to control the first indicator lamp (30) and the second indicator lamp (40) to display a corresponding lighting effect corresponding to a state of charge of the vehicle, wherein the first indicator lamp (30) and the second indicator lamp (40) are configured to alternately light with a gradually changing illuminance, in a single lighting operation, the first indicator lamp (30) and the second indicator lamp (40), respectively, gradually light from a dark state to reach the maximum illuminance, and then darker again, When the vehicle is in the first charging mode, the first indicator lamp (30) is first illuminated, and when the vehicle is in the second charging mode, the second indicator lamp (40) is first illuminated, characterized in that when the vehicle is in a DC charging mode as the first charging mode, the single lighting period of the first indicator lamp (30) and the second indicator lamp (40) is defined as a parameter T01, when the vehicle is in an AC charging mode as the second charging mode, the single lighting period of the first indicator lamp (30) and the second indicator lamp (40) is defined as a parameter T02, and the parameter T01 is smaller than the parameter T02.A vehicle power supply state display system comprising: a power supply terminal (70) associated with at least a first power supply mode and a second power supply mode; a first indicator lamp (30) disposed outside a vehicle; a second indicator lamp (40) disposed outside the vehicle; and a power supply management unit (50) configured to control the first indicator lamp (30) and the second indicator lamp (40) to display a corresponding lighting effect according to a power supply state of the vehicle, wherein the first indicator lamp (30) and the second indicator lamp (40) are configured to alternately illuminate with a gradually changing illuminance, in a single lighting operation, the first indicator lamp (30) and the second indicator lamp (40), respectively, gradually lighten from a dark state to reach the maximum illuminance, and then darker again, A vehicle in the first power supply mode, wherein the second indicator lamp (40) is first illuminated, and wherein the vehicle is in the second power supply mode, the first indicator lamp (30) is first illuminated, characterized in that, when the vehicle is in the first power supply mode, a time when the first indicator lamp (30) starts to illuminate is later than a time when the second indicator lamp (40) starts to illuminate beforehand and earlier than a time when the second indicator lamp (40) previously reached the maximum illuminance, while a time when the first indicator lamp (30) stops illuminating is earlier than a time when the second indicator lamp (40) starts to illuminate anew and earlier than a time when the second indicator lamp (40) starts to illuminate anew and when the vehicle is in the second power supply mode, a timing at which the second indicator lamp (40) starts lighting is later than a timing at which the first indicator lamp (30) starts lighting beforehand and earlier than a timing at which the first indicator lamp (30) reaches the maximum illuminance beforehand, while a timing at which the second indicator lamp (40) stops lighting is later than a timing at which the first indicator lamp (30) starts lighting anew and earlier than a timing at which the first indicator lamp (30) reaches the maximum illuminance anew.A vehicle comprising a vehicle state-of-charge display system according to any one of claims 1 to 11 or a vehicle power supply state display system according to claim 12.

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