Charging control apparatus and method, storage battery, and electric vehicle

Abstract

A charging control apparatus and method, a storage battery, and an electric vehicle. The charging control apparatus is applied to the electric vehicle. The electric vehicle comprises a storage battery and at least one vehicle socket, the vehicle socket comprising a charging connection socket, and the charging control apparatus being connected between the storage battery and the charging connection socket; the charging control apparatus comprises a switch module and a switch control system, the switch module being connected between the storage battery and at least one charging connection socket, and the switch control system being connected to the switch module; and the switch control system is configured to control the switch module to be in a closed state, if the battery level of the storage battery is detected to be less than a first battery level threshold, so that a power supply device can directly charge the storage battery, thereby solving the problem of power depletion of the storage battery of the electric vehicle.

Description

A charging control device, method, battery, and electric vehicle Technical Field

[0001] This application relates to the field of new energy technology, and in particular to a charging control device, method, battery, and electric vehicle. Background Technology

[0002] Current electric vehicles, in addition to a main power battery providing primary energy, generally also have at least one smaller storage battery. This storage battery supplies low-voltage power to the various components of the electric vehicle. Under high-voltage conditions, the main power battery is recharged by a DC / DC converter. However, when the electric vehicle is parked and not in use for extended periods, the storage battery must provide all the energy required. If the storage battery cannot receive timely replenishment, it may become depleted, and in this situation, it cannot be directly charged using either an AC or DC charging gun. Furthermore, when the storage battery is low on power, the electric vehicle's power supply equipment cannot complete the handshake process, thus preventing the AC or DC charging gun from charging the main power battery.

[0003] Summary of the Invention

[0004] In view of this, embodiments of this application provide a charging control device, method, battery, and electric vehicle to solve the problem of battery depletion.

[0005] A first aspect provides a charging control device applied to an electric vehicle, the electric vehicle including a battery and at least one vehicle socket, the vehicle socket including a charging connection port, the charging control device being connected between the battery and the charging connection port;

[0006] The charging control device includes a switch module and a switch control system, wherein the switch module is connected between the battery and at least one of the charging connection ports, and the switch control system is connected to the switch module;

[0007] The switch control system is used to control the switch module to be in a closed state if it detects that the battery power is less than a first power threshold.

[0008] In this embodiment, the switch control system can be used to control the switch module to be in a closed state if the battery charge is detected to be less than a first charge threshold, so that the power supply equipment can directly charge the battery through the charging connection port of the vehicle socket, thereby solving the problem of battery depletion in electric vehicles.

[0009] In some embodiments, the switch control system is used to detect that the voltage of the battery is less than a first voltage threshold, so as to detect that the battery charge is less than a first charge threshold.

[0010] In this embodiment, the switch control system can detect when the battery charge is less than a first charge threshold by detecting the battery voltage, and the detection method is simple.

[0011] In some embodiments, the switch control system is further configured to control the switch module to be in an open state if it detects that the battery charge is greater than a second charge threshold, wherein the second charge threshold is greater than the first charge threshold.

[0012] In this embodiment of the application, the switch control system is used to control the switch module to be in an open state when it detects that the battery charge is greater than a second charge threshold, so that the power supply equipment can perform the charging process of the power battery.

[0013] In some embodiments, the switch control system is used to detect that the voltage of the battery is greater than a second voltage threshold, so as to detect that the charge of the battery is greater than a second charge threshold.

[0014] In this embodiment, the switch control system can detect whether the battery charge is greater than a second charge threshold by detecting the battery voltage, and the detection method is simple.

[0015] In some embodiments, the charging control device further includes a voltage regulator module;

[0016] The voltage regulator module is connected between the charging port and the switching module; or...

[0017] The voltage regulator module is connected between the switching module and the battery.

[0018] In this embodiment of the application, by setting a voltage regulator module, the charging voltage provided by the power supply equipment can be stabilized and amplified.

[0019] In some embodiments, the at least one vehicle socket includes an AC socket, and the charging connection port includes a control guide port; or...

[0020] The at least one vehicle socket includes a DC socket, and the charging connection port includes an auxiliary power port; or...

[0021] The at least one vehicle socket includes an AC socket and a DC socket, and the two charging connection ports include a control guide port and an auxiliary power port.

[0022] In some embodiments, the switch module is a normally open switch.

[0023] In some embodiments, the switching module includes a contact switch or a relay.

[0024] In some embodiments, the switch control system is powered by the battery, or the switch control system is powered by an independent power source.

[0025] In some embodiments, the switch control system is integrated into the switch module, thereby enabling flexible deployment of the switch control system and the switch module.

[0026] A second aspect provides a storage battery for use in an electric vehicle, the electric vehicle including at least one vehicle socket, the vehicle socket including a charging connection port;

[0027] The battery includes: a battery controller, the battery controller including a switch module and a switch control system, the switch control system being connected to the switch module, and the battery controller being used to connect to at least one of the charging connection ports;

[0028] The switch control system is used to control the switch module to be in a closed state if it detects that the battery power is less than a first power threshold.

[0029] In this embodiment, the switch control system can be used to control the switch module to be in a closed state if the battery charge is detected to be less than a first charge threshold, so that the power supply equipment can directly charge the battery through the charging connection port of the vehicle socket, thereby solving the problem of battery depletion in electric vehicles.

[0030] In some embodiments, the switch control system is used to detect that the voltage of the battery is less than a first voltage threshold, so as to detect that the battery charge is less than a first charge threshold.

[0031] In this embodiment, the switch control system can detect when the battery charge is less than a first charge threshold by detecting the battery voltage, and the detection method is simple.

[0032] In some embodiments, the switch control system is further configured to control the switch module to be in an open state if it detects that the battery charge is greater than a second charge threshold, wherein the second charge threshold is greater than the first charge threshold.

[0033] In this embodiment of the application, the switch control system is used to control the switch module to be in an open state when it detects that the battery charge is greater than a second charge threshold, so that the power supply equipment can perform the charging process of the power battery.

[0034] In some embodiments, the switch control system is used to detect that the voltage of the battery is greater than a second voltage threshold, so as to detect that the charge of the battery is greater than a second charge threshold.

[0035] In this embodiment, the switch control system can detect whether the battery charge is greater than a second charge threshold by detecting the battery voltage, and the detection method is simple.

[0036] In some embodiments, the battery controller further includes a voltage regulator module;

[0037] The voltage regulator module is connected between the charging port and the switch module.

[0038] In this embodiment of the application, by setting a voltage regulator module, the charging voltage provided by the power supply equipment can be stabilized and amplified.

[0039] In some embodiments, the at least one vehicle socket includes an AC socket, and the charging connection port includes a control guide port; or...

[0040] The at least one vehicle socket includes a DC socket, and the charging connection port includes an auxiliary power port; or...

[0041] The at least one vehicle socket includes an AC socket and a DC socket, and the two charging connection ports include a control guide port and an auxiliary power port.

[0042] In some embodiments, the switch module is a normally open switch.

[0043] In some embodiments, the switching module includes a contact switch or a relay.

[0044] The third aspect provides an electric vehicle, including a charging control device as described in the first aspect or any possible implementation of the first aspect, or a battery as described in the second aspect or any possible implementation of the second aspect.

[0045] A fourth aspect provides a charging method applied to a charging control device applied to an electric vehicle, the electric vehicle including a battery and at least one vehicle socket, the vehicle socket including a charging connection port, the charging control device being connected between the battery and the charging connection port; the charging control device includes: a switch module and a switch control system, the switch module being connected between the battery and at least one of the charging connection ports, and the switch control system being connected to the switch module;

[0046] The method includes:

[0047] The switch control system detects that the battery's charge level is less than a first charge threshold, and controls the switch module to be in a closed state, so that the charging connection port is electrically connected to the battery and the charging connection port charges the battery.

[0048] In some embodiments, the method further includes:

[0049] The switch control system detects that the battery charge is greater than a second charge threshold and controls the switch module to be in an off state, so that the charging connection port is disconnected from the battery. The second charge threshold is greater than the first charge threshold.

[0050] In some embodiments, the charging control device further includes a voltage regulator module; the method further includes:

[0051] The voltage regulator module regulates and amplifies the charging voltage during the charging process.

[0052] The fifth aspect provides a charging method applied to a storage battery, the storage battery being applied to an electric vehicle, the electric vehicle including at least one vehicle socket, the vehicle socket including a charging connection port; the storage battery including: a battery controller, the battery controller including a switch module and a switch control system, the switch control system being connected to the switch module, the battery controller being used to connect to at least one of the charging connection ports;

[0053] The method includes:

[0054] The switch control system detects that the battery's charge level is less than a first charge threshold, and controls the switch module to be in a closed state, so that the charging connection port is electrically connected to the battery and the charging connection port charges the battery.

[0055] In some embodiments, the method further includes:

[0056] The switch control system detects that the battery charge is greater than a second charge threshold and controls the switch module to be in an off state so that the charging connection port is disconnected from the battery. The second charge threshold is greater than the first charge threshold.

[0057] In some embodiments, the battery further includes a voltage regulator module; the method further includes:

[0058] The voltage regulator module regulates and amplifies the charging voltage during the charging process.

[0059] In the technical solution provided in this application embodiment, the switch control system can be used to control the switch module to be in a closed state if the battery power is detected to be less than a first power threshold, so that the power supply equipment can directly charge the battery through the charging connection port of the vehicle socket, thereby solving the problem of battery depletion in electric vehicles. Attached Figure Description

[0060] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0061] Figure 1 is a schematic diagram of the power supply equipment charging an electric vehicle in some embodiments;

[0062] Figure 2A is a schematic diagram of the charging control device in some embodiments;

[0063] Figure 2B is a schematic diagram of the charging control device in Figure 2A applied to an electric vehicle;

[0064] Figure 3 is another schematic diagram of the charging control device in Figure 2A applied to an electric vehicle;

[0065] Figure 4A is a schematic diagram of the charging control device in some other embodiments;

[0066] Figure 4B is a schematic diagram of the charging control device in Figure 4A applied to an electric vehicle;

[0067] Figure 5 is another schematic diagram of the charging control device in Figure 2A applied to an electric vehicle;

[0068] Figure 6 is another schematic diagram of the charging control device in Figure 2A applied to an electric vehicle;

[0069] Figure 7 is another schematic diagram of the charging control device in Figure A applied to an electric vehicle;

[0070] Figure 8A is a schematic diagram of the battery structure in some embodiments;

[0071] Figure 8B is a schematic diagram of the application of the storage battery in an electric vehicle as shown in Figure 8A;

[0072] Figure 9 is another schematic diagram of the application of the battery in electric vehicles as shown in Figure 8A. Detailed Implementation

[0073] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0074] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0075] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0076] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0077] Figure 1 is a schematic diagram of a power supply device charging an electric vehicle in some embodiments. As shown in Figure 1, the electric vehicle 10 is connected to the power supply device 20 via a charging gun 30. The charging gun 30 may include a cable 301 and a vehicle plug 302. One end of the cable 301 is connected to the power supply device 20, and the other end of the cable 301 is provided with a vehicle plug 302. The electric vehicle 10 includes a vehicle socket (not shown in the figure). The vehicle plug 302 is coupled to the vehicle socket to realize the connection between the power supply device 20 and the electric vehicle 10, thereby realizing energy transmission and information interaction between the power supply device 20 and the electric vehicle 10.

[0078] In some embodiments, the power supply device 20 can be a DC charging pile, the charging gun 30 can be a DC charging gun, and the vehicle socket can be a DC socket; or, the power supply device 20 can be an AC charging pile, the charging gun 30 can be an AC charging gun, and the vehicle socket can be an AC socket.

[0079] This application provides a charging control device. Figure 2A is a schematic diagram of the charging control device in some embodiments, and Figure 2B is a schematic diagram of the charging control device in Figure 2A applied to an electric vehicle. As shown in Figures 2A and 2B, the charging control device is applied to an electric vehicle, which includes a battery and at least one vehicle socket. The vehicle socket includes a charging connection port, and the charging control device is connected between the battery and the charging connection port. As shown in Figures 2A and 2B, the charging control device includes a switch module and a switch control system. The switch module is connected between the battery and at least one charging connection port, and the switch control system is connected to the switch module. As an optional solution, the switch control system is also connected to the battery.

[0080] As shown in Figure 2B, the power supply equipment is an AC charging pile, and the vehicle plug of the charging gun is used to connect to the charging socket of the electric vehicle, so that the electrical energy output by the power supply equipment can be transmitted to the electric vehicle.

[0081] As shown in Figure 2B, the vehicle plug and vehicle socket constitute the vehicle interface. The vehicle plug includes multiple charging connection plugs, and the vehicle socket includes multiple charging connection ports. The multiple charging connection ports include AC power port L1, AC power port L2, AC power port L3, neutral port N, equipment ground port PE, charging connection confirmation port CC, and control guide port CP. Correspondingly, the multiple charging connection plugs include AC power plug L1', AC power plug L2', AC power plug L3', neutral plug N', equipment ground plug PE', charging connection confirmation plug CC', and control guide plug CP'.

[0082] As shown in Figure 2B, the electric vehicle includes an on-board charger, a power battery, a DC / DC converter, and a storage battery. The on-board charger is connected to the power battery, the power battery is connected to the DC / DC converter, and the DC / DC converter is connected to the storage battery. The electric vehicle also includes a vehicle control unit, a second resistor R2, a third resistor R3, a second switch S2, and a diode D1. The first terminal of the second resistor R2 is connected to the second terminal of the second switch S2, and the second terminal of the second resistor R2 is connected to the negative terminal of the diode D1. The first terminal of the second switch S2 is connected to the vehicle ground. The first terminal of the third resistor R3 is connected to the vehicle ground, and the second terminal of the third resistor R3 is connected to the negative terminal of the diode D1. The vehicle control unit is connected to the negative terminal of the diode D1. As shown in Figure 2B, AC power sockets L1, L2, and L3, and the neutral socket N are connected to the on-board charger. The equipment ground socket PE is connected to the vehicle ground. The charging connection confirmation socket CC is connected to the vehicle control unit, and the control guide socket CP is connected to the positive terminal of the diode D1.

[0083] As shown in Figure 2B, the power supply equipment includes a power supply control device, a first switch S1, a first resistor R1, a fourth switch K1, a fifth switch K2, and a current protection device. The vehicle plug also includes a third switch S3, a fourth resistor R4, and a fifth resistor RC. The moving contact of the first switch S1 is connected to the first end of the first resistor R1, and the second end of the first resistor R1 is connected to the power supply control device. The first stationary contact of the first switch S1 is connected to the first signal terminal of the power supply control device, and the second stationary contact of the first switch S1 is connected to the second signal terminal of the power supply control device. The first signal terminal can be used to output a charging voltage, for example, a charging voltage of 12V, and the second signal terminal can be used to output a pulse width modulation (PWM) signal. The first end of the fourth resistor R4 is connected to the device ground, and the second end of the fourth resistor R4 is connected to the first end of the fifth resistor RC. The first end of the third switch S3 is connected to the device ground, and the second end of the third switch S3 is connected to the first end of the fifth resistor RC. The first end of the fourth switch K1 is connected to an AC power source, and the first end of the fifth switch K2 is connected to an AC power source, for example, the mains power supply. As shown in Figure 2, the AC power supply plug L1' is connected to the second terminal of the fourth switch K1, the neutral plug N' is connected to the second terminal of the fifth switch K2, the equipment ground plug PE' is connected to the equipment ground, the charging connection confirmation plug CC' is connected to the second terminal of the fifth resistor RC, and the control guide plug CP' is connected to the second terminal of the first resistor R1.

[0084] For example, the charging control device may further include a voltage regulator module connected between the charging connection socket and the switching module. As shown in FIG2B, for example, if the charging connection socket is a control pilot socket CP, the voltage regulator module is connected to the control pilot socket CP via diode D1. Specifically, the first terminal of the voltage regulator module is connected to the negative terminal of diode D1, the second terminal of the voltage regulator module is connected to the battery via the switching module, and the positive terminal of diode D1 is connected to the control pilot socket CP. Therefore, the voltage regulator module is connected to the control pilot socket CP via diode D1. Diode D1 can be used to prevent reverse current to protect the electronic components in the circuit.

[0085] For example, the switching module is a normally open switch. For instance, the switching module includes a contact switch or a relay. In practical applications, the switching module may also include switching components, such as at least one of a transistor, a field-effect transistor, and a thyristor.

[0086] For example, the switch control system is powered by a battery; or, the switch control system is powered by an independent power source, such as a backup power source within the electric vehicle.

[0087] As shown in Figure 2B, exemplarily, the battery is also connected to the vehicle body ground. Alternatively, the negative terminal of the battery can be connected to the vehicle body ground, and the positive terminal can be used to connect to a power supply control device. The power supply ground of the power supply control device can be connected to the vehicle body ground, thus forming a power supply circuit. Specifically, the positive terminal of the battery can be connected to the power supply control device by connecting a switching module and a voltage regulator module.

[0088] As shown in Figure 2B, when an electric vehicle is left unused for an extended period, the switch control system controls the switch module to be in a closed state if it detects that the battery charge is below a first charge threshold. The switch control system can monitor the battery charge in real time. When it detects that the battery charge is below the first charge threshold, it indicates that the battery is depleted. At this time, because the battery cannot provide a stable low voltage, multiple controllers involved in charging cease to function. These controllers may include an on-board charger (OBC), a battery management system (BMS), a vehicle control unit (VCU), and a DC / DC converter, etc. This prevents the electric vehicle and the power supply equipment from completing the handshake procedure, thus preventing the charging gun from charging the battery. Since the switch module is a normally open switch, the switch control system can control the switch module to switch from an open state to a closed state. When the switch module is closed, it controls the connection of the control guide connector CP with the battery.

[0089] In this embodiment, the switch control system detects the battery voltage to determine if the battery charge is less than a first charge threshold. Specifically, the switch control system can detect if the battery voltage is less than a first voltage threshold to determine if the battery charge is less than the first charge threshold. When the switch control system detects that the battery voltage is less than the first voltage threshold, it controls the switch module to switch from an open state to a closed state. When the switch module is closed, it controls the guide port CP to connect to the battery.

[0090] As shown in Figure 2B, when a user finds that the battery is low and the electric vehicle is unusable, they can insert the AC charging gun into the AC socket, connecting the vehicle plug to the socket and thus connecting the power supply equipment to the electric vehicle. In the power supply equipment, when the AC charging gun is not inserted into the AC socket, the moving contact and the stationary contact of the first switch S1 are connected; when the AC charging gun is inserted into the AC socket, the moving contact of the first switch S1 remains connected to the stationary contact, so that the first signal terminal of the power supply control device is connected to the control guide plug CP' through the first resistor R1. Since the control guide plug CP' is connected to the control guide socket CP, the first signal terminal of the power supply control device supplies power to the battery through the control guide socket CP. For example, the first signal terminal can provide a 12V charging voltage. The voltage regulator module regulates and amplifies the charging voltage provided by the first signal terminal of the power supply control device, and charges the battery using the regulated and amplified charging voltage.

[0091] As shown in Figure 2B, exemplarily, during the charging process of the battery, the switch control system is also used to control the switch module to be in an open state if it detects that the battery charge is greater than a second charge threshold, where the second charge threshold is greater than a first charge threshold. The switch control system can detect the battery charge in real time. When the switch control system detects that the battery charge is greater than the second charge threshold, it indicates that the battery charge has reached a level sufficient to drive all controllers on the electric vehicle. At this time, the switch control system can control the switch module to switch from a closed state to an open state. When the switch module is open, the control guide connector CP is disconnected from the battery. Then, the power supply equipment can continue to execute the charging process to charge the power battery.

[0092] In this embodiment, the switch control system detects the battery voltage to determine if the battery charge exceeds a second charge threshold. Specifically, the switch control system detects that the battery voltage exceeds the second voltage threshold to determine if the battery charge exceeds the second charge threshold. When the switch control system detects that the battery voltage exceeds the second voltage threshold, it controls the switch module to switch from a closed state to an open state. When the switch module is open, the control guide port CP is disconnected from the battery. Then, the power supply equipment can continue the charging process to charge the power battery.

[0093] The charging process of the power supply equipment will continue to be described below with reference to Figure 2B. As shown in Figure 2B, the third switch S3, the fourth resistor R4, and the fifth resistor RC form the CC resistor. When the battery power is sufficient to drive the controllers on the electric vehicle, the state of the third switch S3 is controlled to control the resistance value of the CC resistor. The vehicle control device detects whether the charging connection confirmation plug CC' is connected to the charging connection confirmation socket CC based on the resistance value of the CC resistor. The power supply control device and the vehicle control device use the charging voltage provided by the first signal terminal and the PWM signal provided by the second signal terminal, as well as the third switch S3, the fourth resistor R4, and the fifth resistor RC, to detect the voltage of the control guide socket CP and the voltage of the control guide plug CP'. Then, after detecting that the charging connection confirmation plug CC' is connected to the charging connection confirmation socket CC, and after detecting that the voltage of the control guide socket CP and the voltage of the control guide plug CP' are normal, the power supply equipment charges the on-board charger through the AC power supply sockets L1, L2, L3, and the neutral line socket N. The on-board charger charges the power battery, and the power battery charges the storage battery through a DC / DC converter. In addition, current protection devices can be used to prevent leakage current, and further prevent electric shock accidents, electrical equipment leakage damage and electrical fires.

[0094] Figure 3 is another schematic diagram of the charging control device in Figure 2A applied to an electric vehicle. As shown in Figure 3, the difference from the embodiments shown in Figures 2A and 2B is that the voltage regulator module is connected between the switching module and the battery.

[0095] Specifically, the first terminal of the switching module is connected to the negative terminal of diode D1, the second terminal of the switching module is connected to the first terminal of the voltage regulator module, and the second terminal of the voltage regulator module is connected to the battery. The positive terminal of diode D1 is connected to the control pilot port CP. Therefore, the voltage regulator module is connected to the control pilot port CP through the closed switching module and diode D1.

[0096] For a detailed description of the circuit shown in Figure 3, please refer to the detailed descriptions of the circuits shown in Figures 2A and 2B, which will not be repeated here.

[0097] Figure 4A is a structural schematic diagram of the charging control device in some other embodiments, and Figure 4B is a schematic diagram of the charging control device in Figure 4A applied to an electric vehicle. As shown in Figures 4A and 4B, the difference from the embodiments shown in Figures 2A and 2B is that the switch control system is integrated into the switch module.

[0098] For a detailed description of the circuits shown in Figures 4A and 4B, please refer to the detailed description of the circuits shown in Figures 2A and 2B, which will not be repeated here.

[0099] As an alternative, the voltage regulator module can also be connected between the switching module and the battery; this case will not be shown in detail.

[0100] In this embodiment, the charging control device is applied to an electric vehicle. The electric vehicle includes a battery and at least one vehicle socket. The vehicle socket includes a charging connection port. The charging control device is connected between the battery and the charging connection port. The charging control device includes a switch module and a switch control system. The switch module is connected between the battery and at least one charging connection port. The switch control system is connected to the switch module. If the battery charge is detected to be less than a first charge threshold, the switch control system can control the switch module to be in a closed state, so that the power supply equipment can directly charge the battery through the control guide port CP of the vehicle socket, thereby solving the problem of battery depletion in electric vehicles.

[0101] This application provides another charging control device. Figure 5 is a schematic diagram of the charging control device in Figure 2A applied to an electric vehicle. As shown in Figures 2A and 5, the charging control device is applied to an electric vehicle, which includes a battery and at least one vehicle socket. The vehicle socket includes a charging connection port, and the charging control device is connected between the battery and the charging connection port. As shown in Figures 2A and 5, the charging control device includes a switch module and a switch control system. The switch module is connected between the battery and at least one charging connection port, and the switch control system is connected to the switch module. As an optional embodiment, the switch control system is also connected to the battery.

[0102] As shown in Figure 5, the power supply equipment is a DC charging pile. The vehicle plug of the charging gun is used to connect to the charging socket of the electric vehicle, so that the electrical energy output by the power supply equipment can be transmitted to the electric vehicle.

[0103] As shown in Figure 5, the vehicle plug and vehicle socket constitute the vehicle interface. The vehicle plug includes multiple charging connection plugs, and the vehicle socket includes multiple charging connection ports. The multiple charging connection ports include a DC power supply port DC+, a DC power supply port DC-, a device ground port PE, a connection confirmation port CC1, a connection confirmation port CC2, a communication port S+, a communication port S-, an auxiliary power port A+, and an auxiliary power port A-. Correspondingly, the multiple charging connection plugs include a DC power supply plug DC'+, a DC power supply plug DC'-, a device ground plug PE', a connection confirmation plug CC1', a connection confirmation plug CC2', a communication plug S'+, a communication plug S'-, an auxiliary power plug A'+, and an auxiliary power plug A'-.

[0104] As shown in Figure 5, the electric vehicle includes a power battery, a DC / DC converter, a storage battery, a vehicle controller, a ninth resistor R9, a tenth resistor R10, a tenth switch K7, and an eleventh switch K8. The power battery is connected to the DC / DC converter, the DC / DC converter is connected to the storage battery, the vehicle controller is connected to the storage battery, the first terminal of the tenth resistor R10 is connected to a voltage source, and the second terminal of the tenth resistor R10 is connected to the vehicle controller. As shown in Figure 5, the DC power supply port DC+ is connected to the first terminal of the tenth switch K7, and the second terminal of the tenth switch K7 is connected to the power battery. The DC power supply port DC- is connected to the first terminal of the eleventh switch K8, and the second terminal of the eleventh switch K8 is connected to the power battery. The first terminal of the ninth resistor R9 is connected to the equipment ground port PE, and the second terminal of the ninth resistor R9 is connected to the connection confirmation port CC1. The equipment ground port PE is connected to the vehicle ground. The connection confirmation port CC2 is connected to the second terminal of the tenth resistor R10 and the vehicle controller. The communication ports S+, S-, A+, and A- are connected to the vehicle controller.

[0105] As shown in Figure 5, the power supply equipment includes an AC / DC converter, a sixth switch K3, a seventh switch K4, an auxiliary power supply, an eighth switch K5, a ninth switch K6, an auxiliary power supply, a non-vehicle motor controller, and a sixth resistor R6. The vehicle plug also includes a seventh resistor R7, a twelfth switch K9, and an eighth resistor R8. The output terminal of the AC / DC converter is connected to the first terminal of the sixth switch K3 and the first terminal of the seventh switch K4. The auxiliary power supply is connected to the first terminal of the eighth switch K5 and the first terminal of the ninth switch K6. The non-vehicle motor controller is used to control the eighth switch K5 and the ninth switch K6. The first terminal of the sixth resistor R6 is connected to the voltage source, and the second terminal of the twelfth switch K9 is connected to the first terminal of the seventh resistor R7. As shown in Figure 5, the DC power supply plug DC'+ is connected to the second terminal of the sixth switch K3, the DC power supply plug DC'- is connected to the second terminal of the seventh switch K4, the equipment ground plug PE' is connected to the equipment ground, the first terminal of the twelfth switch K9, and the first terminal of the eighth resistor R8, the connection confirmation plug CC1' is connected to the second terminal of the sixth resistor R6 and the off-board motor controller, the connection confirmation plug CC2' is connected to the second terminal of the eighth resistor R8, the communication plugs S'+ and S'- are connected to the off-board motor controller and the second terminal of the eighth switch K5, and the auxiliary power plug A'- is connected to the second terminal of the ninth switch K6. The AC / DC input is connected to an AC power source, for example, the mains power supply, which in Figure 5 provides a voltage of 380V.

[0106] For example, the charging control device may further include a voltage regulator module connected between the charging connection socket and the switching module. As shown in Figure 5, for example, if the charging connection socket is an auxiliary power socket A+, then the voltage regulator module is connected to the auxiliary power socket A+. Specifically, the first end of the voltage regulator module is connected to the auxiliary power socket A+, and the second end of the voltage regulator module is connected to the battery through the switching module.

[0107] For example, the switching module is a normally open switch. For instance, the switching module includes a contact switch or a relay. In practical applications, the switching module may also include switching components, such as at least one of a transistor, a field-effect transistor, and a thyristor.

[0108] For example, the switch control system is powered by a battery; or, the switch control system is powered by an independent power source, such as a backup power source within the electric vehicle.

[0109] As shown in Figure 5, exemplarily, the battery is also connected to the vehicle body ground. Alternatively, the negative terminal of the battery can be connected to the vehicle body ground, and the positive terminal can be used to connect to an auxiliary power supply. The power supply ground of the auxiliary power supply can then be connected to the vehicle body ground, thus forming a power supply circuit. Specifically, the positive terminal of the battery can be connected to the auxiliary power supply by connecting a switching module and a voltage regulator module.

[0110] As shown in Figure 5, when an electric vehicle is left unused for an extended period, the switch control system controls the switch module to be in a closed state if it detects that the battery charge is below a first charge threshold. The switch control system can monitor the battery charge in real time. When it detects that the battery charge is below the first charge threshold, it indicates that the battery is depleted. At this time, because the battery cannot provide a stable low voltage, multiple controllers involved in charging cease to function. These controllers may include OBC, BMS, VCU, and DC / DC converters, preventing the electric vehicle and power supply equipment from completing the handshake process, thus preventing the charging gun from charging the battery. Since the switch module is a normally open switch, the switch control system can control the switch module to switch from an open state to a closed state. When the switch module is closed, the auxiliary power connector A+ is connected to the battery.

[0111] In this embodiment, the switch control system detects the battery voltage to determine if the battery charge is less than a first charge threshold. Specifically, the switch control system can detect if the battery voltage is less than a first voltage threshold to determine if the battery charge is less than the first charge threshold. When the switch control system detects that the battery voltage is less than the first voltage threshold, it controls the switch module to switch from an open state to a closed state. When the switch module is closed, the auxiliary power connector A+ is connected to the battery.

[0112] As shown in Figure 5, when a user finds that the battery is low and the electric vehicle is unusable, they can insert the DC charging gun into the DC socket, connecting the vehicle plug to the socket and thus connecting the power supply equipment to the electric vehicle. In the power supply equipment, when the DC charging gun is inserted into the DC socket, the eighth switch K5 and the ninth switch K6 are closed. This allows the auxiliary power supply to connect to the auxiliary power plug A'+ through the closed eighth switch K5 and to the auxiliary power plug A'- through the closed ninth switch K6. Since the auxiliary power plug A'+ is connected to the auxiliary power socket A+, the auxiliary power supply provides power to the battery through the auxiliary power socket A+. For example, the auxiliary power supply can provide a 12V charging voltage. The voltage regulator module regulates and amplifies the charging voltage provided by the auxiliary power supply and charges the battery using this regulated and amplified voltage.

[0113] As shown in Figure 5, exemplarily, during the charging process of the battery, the switch control system is also used to control the switch module to be in an open state if it detects that the battery charge is greater than a second charge threshold, where the second charge threshold is greater than a first charge threshold. The switch control system can detect the battery charge in real time. When the switch control system detects that the battery charge is greater than the second charge threshold, it indicates that the battery charge has reached a level sufficient to drive at least the controllers on the electric vehicle. At this time, the switch control system can control the switch module to switch from a closed state to an open state. When the switch module is open, the auxiliary power socket A+ is disconnected from the battery. Then, the power supply equipment can continue to execute the charging process to charge the power battery.

[0114] In this embodiment, the switch control system detects the battery voltage to determine if the battery charge exceeds a second charge threshold. Specifically, the switch control system detects that the battery voltage exceeds the second voltage threshold to determine if the battery charge exceeds the second charge threshold. When the switch control system detects that the battery voltage exceeds the second voltage threshold, it controls the switch module to switch from a closed state to an open state. When the switch module is open, the auxiliary power connector A+ is disconnected from the battery. Then, the power supply equipment can continue the charging process to charge the power battery.

[0115] The charging process of the power supply equipment is described below with reference to Figure 5. As shown in Figure 5, when the battery power is sufficient to drive the controllers on the electric vehicle, the off-board motor controller checks whether the connection confirmation plug CC1' and the connection confirmation socket CC1 are connected through the sixth resistor R6, the seventh resistor R7, the twelfth switch K9, and the ninth resistor R9; the vehicle controller checks whether the connection confirmation plug CC2' and the connection confirmation socket CC2 are connected through the tenth resistor R10 and the eighth resistor R8; the off-board motor controller and the vehicle controller complete the detection of the DC power supply plug DC'+, DC power supply plug DC'-, DC power supply socket DC+, DC power supply socket DC-, communication plug S'+, communication socket S+, communication plug S'-, and communication socket S-; then, after the above detections are successful, the sixth switch K3, the seventh switch K4, the tenth switch K7, and the eleventh switch K8 are closed, and the power supply equipment charges the on-board charger through the DC power supply sockets DC+ and DC power supply sockets DC-, the on-board charger charges the power battery, and the power battery charges the battery through the DC / DC converter.

[0116] Figure 6 is another schematic diagram of the charging control device in Figure 2A applied to an electric vehicle. As shown in Figure 6, the difference from the embodiment shown in Figure 5 is that the voltage regulator module is connected between the switching module and the battery.

[0117] Specifically, the first end of the switching module is connected to the auxiliary power socket A+, the second end of the switching module is connected to the first end of the voltage regulator module, and the second end of the voltage regulator module is connected to the battery.

[0118] For a detailed description of the circuit shown in Figure 6, please refer to the detailed description of the circuit shown in Figure 5, which will not be repeated here.

[0119] Figure 7 is another schematic diagram of the charging control device in Figure A applied to an electric vehicle. As shown in Figure 7, the difference from the embodiment shown in Figure 5 is that the switch control system is integrated into the switch module.

[0120] For a detailed description of the circuit shown in Figure 7, please refer to the detailed description of the circuit shown in Figure 5, which will not be repeated here.

[0121] As an alternative, the voltage regulator module can also be connected between the switching module and the battery; this case will not be shown in detail.

[0122] In this embodiment, the charging control device is applied to an electric vehicle. The electric vehicle includes a battery and at least one vehicle socket. The vehicle socket includes a charging connection port. The charging control device is connected between the battery and the charging connection port. The charging control device includes a switch module and a switch control system. The switch module is connected between the battery and at least one charging connection port. The switch control system is connected to the switch module. If the battery charge is detected to be less than a first charge threshold, the switch control system can control the switch module to be in a closed state, so that the power supply equipment can directly charge the battery through the auxiliary power port A+ of the vehicle socket, thereby solving the problem of battery depletion in electric vehicles.

[0123] Figure 8A is a schematic diagram of the structure of the battery in some embodiments, and Figure 8B is a schematic diagram of the battery in Figure 8A applied to an electric vehicle. As shown in Figures 8A and 8B, the battery is applied to an electric vehicle, which includes at least one vehicle socket, and the vehicle socket includes a charging connection port; the battery includes a battery controller, which includes a switch module and a switch control system, the switch control system being connected to the switch module, and the battery controller being used to connect to at least one charging connection port.

[0124] For example, if the battery controller is provided with a PIN interface for connecting to a charging connection port, the battery controller can connect to at least one of the charging connection ports through the provided PIN interface.

[0125] As shown in Figure 8B, the power supply equipment is an AC charging pile, and the vehicle plug of the charging gun is used to connect to the charging socket of the electric vehicle, so that the electrical energy output by the power supply equipment can be transmitted to the electric vehicle.

[0126] For example, the battery controller further includes a voltage regulator module connected between the charging connection port and the switching module. As shown in FIG8B, for example, if the charging connection port is a control pilot port CP, the voltage regulator module is connected to the control pilot port CP via diode D1. Specifically, the first terminal of the voltage regulator module is connected to the negative terminal of diode D1, the second terminal of the voltage regulator module is connected to the switching module, and the positive terminal of diode D1 is connected to the control pilot port CP. Therefore, the voltage regulator module is connected to the control pilot port CP via diode D1. Diode D1 can be used to prevent reverse current to protect the electronic components in the circuit.

[0127] In this application embodiment, the description of the vehicle plug, vehicle socket, electric vehicle, and power supply equipment in FIG8B can be found in the description of the embodiment shown in FIG2B.

[0128] For example, the switching module is a normally open switch. For instance, the switching module includes a contact switch or a relay. In practical applications, the switching module may also include switching components, such as at least one of a transistor, a field-effect transistor, and a thyristor.

[0129] For example, the switch control system is powered by a storage battery.

[0130] As shown in Figure 8B, exemplarily, the battery is also connected to the vehicle body ground. Alternatively, the negative terminal of the battery can be connected to the vehicle body ground, and the positive terminal of the battery can be used to connect to a power supply control device. The power supply ground of the power supply control device can be connected to the vehicle body ground, thereby forming a power supply circuit.

[0131] As shown in Figure 8B, when an electric vehicle is left unused for an extended period, the switch control system controls the switch module to be in a closed state if it detects that the battery charge is below a first charge threshold. The switch control system can monitor the battery charge in real time. When it detects that the battery charge is below the first charge threshold, it indicates that the battery is depleted. At this time, because the battery cannot provide a stable low voltage, multiple controllers involved in charging cease to function. These controllers may include OBC, BMS, VCU, and DC / DC converters, preventing the electric vehicle and power supply equipment from completing the handshake process, thus preventing the charging gun from charging the battery. Since the switch module is a normally open switch, the switch control system can control the switch module to switch from an open state to a closed state. When the switch module is closed, it controls the connection of the control guide CP to the battery.

[0132] In this embodiment, the switch control system detects the battery voltage to determine if the battery charge is less than a first charge threshold. Specifically, the switch control system can detect if the battery voltage is less than a first voltage threshold to determine if the battery charge is less than the first charge threshold. When the switch control system detects that the battery voltage is less than the first voltage threshold, it controls the switch module to switch from an open state to a closed state. When the switch module is closed, it controls the guide port CP to connect to the battery.

[0133] As shown in Figure 8B, when a user finds that the battery is low and the electric vehicle is unusable, they can insert the AC charging gun into the AC socket, connecting the vehicle plug to the socket and thus connecting the power supply equipment to the electric vehicle. In the power supply equipment, when the AC charging gun is not inserted into the AC socket, the moving contact and the stationary contact of the first switch S1 are connected. When the AC charging gun is inserted into the AC socket, the moving contact of the first switch S1 remains connected to the stationary contact, so that the first signal terminal of the power supply control device is connected to the control guide plug CP' through the first resistor R1. Since the control guide plug CP' is connected to the control guide socket CP, the first signal terminal of the power supply control device supplies power to the battery through the control guide socket CP. For example, the first signal terminal can provide a 12V charging voltage. The voltage regulator module regulates and amplifies the charging voltage provided by the first signal terminal of the power supply control device and charges the battery using the regulated and amplified charging voltage.

[0134] As shown in Figure 8B, exemplarily, during the charging process of the battery, the switch control system is also used to control the switch module to be in an open state if it detects that the battery charge is greater than a second charge threshold, where the second charge threshold is greater than a first charge threshold. The switch control system can detect the battery charge in real time. When the switch control system detects that the battery charge is greater than the second charge threshold, it indicates that the battery charge has reached a level sufficient to drive all controllers on the electric vehicle. At this time, the switch control system can control the switch module to switch from a closed state to an open state. When the switch module is open, the control guide connector CP is disconnected from the battery. Then, the power supply equipment can continue to execute the charging process to charge the power battery.

[0135] In this embodiment, the switch control system detects the battery voltage to determine if the battery charge is greater than a second charge threshold. Specifically, the switch control system detects that the battery voltage is greater than the second voltage threshold to determine if the battery charge is greater than the second charge threshold. When the switch control system detects that the battery voltage is greater than the second voltage threshold, it controls the switch module to switch from a closed state to an open state. When the switch module is open, it controls the guide port CP to disconnect from the battery.

[0136] In this embodiment, the battery is used in an electric vehicle. The electric vehicle includes at least one vehicle socket, which includes a charging connection port. The battery includes a battery controller, which includes a switch module and a switch control system. The switch control system is connected to the switch module. The battery controller is used to connect to at least one charging connection port. The switch control system can be used to control the switch module to be closed if it detects that the battery charge is less than a first charge threshold, so that the power supply equipment can directly charge the battery through the control guide port CP of the vehicle socket, thereby solving the problem of battery depletion in electric vehicles.

[0137] Figure 9 is another schematic diagram of the battery in Figure 8A applied to an electric vehicle. As shown in Figures 8A and 9, the battery is applied to an electric vehicle, which includes at least one vehicle socket, which includes a charging connection port. The battery includes a battery controller, which includes a switch module and a switch control system. The switch control system is connected to the switch module, and the battery controller is used to connect to at least one of the charging connection ports.

[0138] For example, if the battery controller is provided with a PIN interface for connecting to a charging connection port, the battery controller can connect to at least one of the charging connection ports through the provided PIN interface.

[0139] As shown in Figure 9, the power supply equipment is a DC charging pile, and the vehicle plug of the charging gun is used to connect to the charging socket of the electric vehicle, so that the electrical energy output by the power supply equipment can be transmitted to the electric vehicle.

[0140] For example, the battery controller further includes a voltage regulator module connected between the charging connector and the switching module. As shown in Figure 9, for example, if the charging connector is an auxiliary control power supply A+, then the voltage regulator module is connected to the auxiliary control power supply A+. Specifically, the first end of the voltage regulator module is connected to the auxiliary power supply A+, and the second end of the voltage regulator module is connected to the switching module.

[0141] In this application embodiment, the description of the vehicle plug, vehicle socket, electric vehicle, and power supply equipment in FIG9 can be found in the description of the embodiment shown in FIG5.

[0142] For example, the switching module is a normally open switch. For instance, the switching module includes a contact switch or a relay. In practical applications, the switching module may also include switching components, such as at least one of a transistor, a field-effect transistor, and a thyristor.

[0143] For example, the switch control system is powered by a storage battery.

[0144] As shown in Figure 9, exemplarily, the battery is also connected to the vehicle body ground. Alternatively, the negative terminal of the battery can be connected to the vehicle body ground, and the positive terminal can be used to connect to an auxiliary power supply. The power supply ground of the auxiliary power supply can then be connected to the vehicle body ground, thus forming a power supply circuit.

[0145] As shown in Figure 9, when an electric vehicle is left unused for an extended period, the switch control system controls the switch module to be in a closed state if it detects that the battery charge is below a first charge threshold. The switch control system can monitor the battery charge in real time. When it detects that the battery charge is below the first charge threshold, it indicates that the battery is depleted. At this time, because the battery cannot provide a stable low voltage, multiple controllers involved in charging cease to function. These controllers may include OBC, BMS, VCU, and DC / DC converters, preventing the electric vehicle and power supply equipment from completing the handshake process, thus preventing the charging gun from charging the battery. Since the switch module is a normally open switch, the switch control system can control the switch module to switch from an open state to a closed state. When the switch module is closed, the auxiliary power connector A+ is connected to the battery.

[0146] In this embodiment, the switch control system detects the battery voltage to determine if the battery charge is less than a first charge threshold. Specifically, the switch control system can detect if the battery voltage is less than a first voltage threshold to determine if the battery charge is less than the first charge threshold. When the switch control system detects that the battery voltage is less than the first voltage threshold, it controls the switch module to switch from an open state to a closed state. When the switch module is closed, the auxiliary power connector A+ is connected to the battery.

[0147] As shown in Figure 9, when a user finds that the battery is low and the electric vehicle is unusable, they can insert the DC charging gun into the DC socket, connecting the vehicle plug to the socket and thus connecting the power supply equipment to the electric vehicle. In the power supply equipment, when the DC charging gun is inserted into the DC socket, the eighth switch K5 and the ninth switch K6 are closed. This allows the auxiliary power supply to connect to the auxiliary power plug A'+ through the closed eighth switch K5 and to the auxiliary power plug A'- through the closed ninth switch K6. Since the auxiliary power plug A'+ is connected to the auxiliary power socket A+, the auxiliary power supply provides power to the battery through the auxiliary power socket A+. For example, the auxiliary power supply can provide a 12V charging voltage. The voltage regulator module regulates and amplifies the charging voltage provided by the auxiliary power supply and charges the battery using this regulated and amplified voltage.

[0148] As shown in Figure 9, exemplarily, during the charging process of the battery, the switch control system is also used to control the switch module to be in an open state if it detects that the battery charge is greater than a second charge threshold, where the second charge threshold is greater than a first charge threshold. The switch control system can detect the battery charge in real time. When the switch control system detects that the battery charge is greater than the second charge threshold, it indicates that the battery charge has reached a level sufficient to drive all controllers on the electric vehicle. At this time, the switch control system can control the switch module to switch from a closed state to an open state. When the switch module is open, the auxiliary power socket A+ is disconnected from the battery. Then, the power supply equipment can continue to execute the charging process to charge the power battery.

[0149] In this embodiment, the switch control system detects the battery voltage to determine if the battery charge is greater than a second charge threshold. Specifically, the switch control system detects that the battery voltage is greater than the second voltage threshold to determine if the battery charge is greater than the second charge threshold. When the switch control system detects that the battery voltage is greater than the second voltage threshold, it controls the switch module to switch from a closed state to an open state. When the switch module is open, the auxiliary power connector A+ is disconnected from the battery.

[0150] In this embodiment, the battery is used in an electric vehicle. The electric vehicle includes at least one vehicle socket, which includes a charging connection port. The battery includes a battery controller, which includes a switch module and a switch control system. The switch control system is connected to the switch module. The battery controller is used to connect to at least one charging connection port. The switch control system can be used to control the switch module to be closed if it detects that the battery charge is less than a first charge threshold, so that the power supply equipment can directly charge the battery through the auxiliary power port A+ of the vehicle socket, thereby solving the problem of battery depletion in electric vehicles.

[0151] In this embodiment of the application, as an optional solution, the electric vehicle may only include an AC socket, as shown in Figures 2B, 3, 4B, and 8, where at least one vehicle socket includes an AC socket and the charging connection port includes a control guide port CP. Alternatively, the electric vehicle may only include a DC socket, as shown in Figures 5, 6, 7, and 9, where at least one vehicle socket includes a DC socket and the charging connection port includes an auxiliary power port A+.

[0152] In practical applications, as an alternative, the electric vehicle may include both an AC socket and a DC socket. At least one vehicle socket may include both an AC socket and a DC socket, and the two charging connection ports may include a control guide port and an auxiliary power port. In this case, when the DC charging gun is inserted into the DC socket, the power supply equipment connects to the electric vehicle through the DC socket and charges the electric vehicle; when the AC charging gun is inserted into the AC socket, the power supply equipment connects to the electric vehicle through the AC socket and charges the electric vehicle. This scenario is not specifically illustrated.

[0153] This application provides an electric vehicle, including a charging control device or a battery. For a detailed description of the electric vehicle, please refer to the descriptions in the embodiments shown in Figures 2A to 9 above, which will not be repeated here.

[0154] In the electric vehicle provided in this application embodiment, the switch control system can be used to control the switch module to be in a closed state if the battery charge is detected to be less than a first charge threshold, so that the power supply equipment can directly charge the battery through the charging connection port of the vehicle socket, thereby solving the problem of battery depletion in electric vehicles.

[0155] In related technologies, when a battery is low on power, operators need to disconnect and expose the positive and negative terminals of the battery and use an external power source to jump-start the battery to charge it and resolve the low battery issue. However, this jump-start method requires skilled operators and carries the risk of short circuits and reverse connections. To address these issues, in this embodiment, both the vehicle plug and the vehicle socket can use standard interfaces, eliminating the risk of short circuits and reverse connections. Simply inserting the charging gun into the vehicle socket is sufficient to charge the battery, solving the problem of low battery power in electric vehicles. This method requires less skill from operators, eliminates the need for additional external equipment, and easily meets charging requirements.

[0156] In this embodiment, the power supply equipment can directly charge the battery through the charging connection port of the vehicle socket.

[0157] In this embodiment, the problem of battery depletion is solved by adding a switch control system, a switch module, and a voltage regulator module to the electric vehicle. The control strategy is simple and flexible in deployment.

[0158] This application provides a charging system, including: a power supply device, a connection device, and an electric vehicle, wherein the power supply device is connected to a vehicle socket via the connection device.

[0159] As an alternative, the power supply equipment includes a charging pile, and the connection device includes a charging gun, as described in the embodiments shown in Figures 2A to 9.

[0160] As an alternative, the power supply equipment includes a power bank, and the connection device includes a vehicle plug, a charging port, and a cable. The charging nozzle is located at one end of the cable, and the charging port is located at the other end. The vehicle plug is used to connect to the vehicle's electrical outlet, and the charging port is used to connect to the power bank. When a user finds that the battery is low and the electric vehicle is unusable, they can plug the vehicle plug into the electric vehicle's electrical outlet and connect the charging port to the power bank. For example, the charging port can be a Type-C interface or a USB interface.

[0161] As an alternative, the power supply equipment includes a charging vehicle, and the connection device includes a vehicle plug, a charging interface, and a cable. The charging nozzle is located at one end of the cable, and the charging interface is located at the other end. The vehicle plug is used to connect to a vehicle socket, and the charging interface is used to connect to a corresponding interface inside the charging vehicle. When a user finds that the battery is low and the electric vehicle is unusable, they can plug the vehicle plug into the electric vehicle's socket and connect the charging interface to the corresponding interface inside the charging vehicle, such as a Type-C interface or a USB interface.

[0162] This application provides a charging method applied to a charging control device for an electric vehicle. The electric vehicle includes a battery and at least one vehicle socket, the vehicle socket including a charging connection port. The charging control device is connected between the battery and the charging connection port. The charging control device includes a switch module and a switch control system. The switch module is connected between the battery and the at least one charging connection port, and the switch control system is connected to the switch module. For a description of the charging control device, please refer to the description of the embodiments shown in Figures 2A to 7 above, which will not be repeated here.

[0163] The method may include:

[0164] Step 102: The switch control system detects that the battery charge is less than the first charge threshold, and controls the switch module to be in the closed state so that the charging connection port is electrically connected to the battery and the charging connection port charges the battery.

[0165] For example, if the charging connection socket is the control guide socket CP, then the control guide socket CP is electrically connected to the battery; as another example, if the charging connection socket is the auxiliary power socket A+, then the auxiliary power socket A+ is electrically connected to the battery.

[0166] Step 104: The switch control system detects that the battery charge is greater than the second charge threshold and controls the switch module to be in the off state so that the charging connection port is disconnected from the battery. The second charge threshold is greater than the first charge threshold.

[0167] For example, if the charging connection socket is the control guide socket CP, then the control guide socket CP is disconnected from the battery; as another example, if the charging connection socket is the auxiliary power socket A+, then the auxiliary power socket A+ is disconnected from the battery.

[0168] As an optional solution, the charging control device also includes a voltage regulator module, then the method further includes: the voltage regulator module performs voltage regulation and amplification processing on the charging voltage during the charging process.

[0169] For a detailed description of the above method in the embodiments of this application, please refer to the description of the embodiments shown in Figures 2A to 7.

[0170] This application provides another charging method applied to a storage battery in an electric vehicle. The electric vehicle includes at least one vehicle socket, which includes a charging connection port. The storage battery includes a battery controller, which includes a switch module and a switch control system. The switch control system is connected to the switch module, and the battery controller is used to connect to at least one charging connection port. The description of the storage battery can be found in the embodiments shown in Figures 8 and 9 above, and will not be repeated here.

[0171] The method includes:

[0172] Step 202: The switch control system detects that the battery charge is less than the first charge threshold, and controls the switch module to be in the closed state so that the charging connection port is electrically connected to the battery and the charging connection port charges the battery.

[0173] For example, if the charging connection socket is the control guide socket CP, then the control guide socket CP is electrically connected to the battery; as another example, if the charging connection socket is the auxiliary power socket A+, then the auxiliary power socket A+ is electrically connected to the battery.

[0174] Step 204: The switch control system detects that the battery charge is greater than the second charge threshold and controls the switch module to be in the off state so that the charging connection port is disconnected from the battery. The second charge threshold is greater than the first charge threshold.

[0175] For example, if the charging connection socket is the control guide socket CP, then the control guide socket CP is disconnected from the battery; as another example, if the charging connection socket is the auxiliary power socket A+, then the auxiliary power socket A+ is disconnected from the battery.

[0176] As an optional solution, the battery also includes a voltage regulator module, then the method further includes: the voltage regulator module performs voltage regulation and amplification processing on the charging voltage during the charging process.

[0177] In the technical solution provided in this application embodiment, the switch control system can be used to control the switch module to be in a closed state if the battery power is detected to be less than a first power threshold, so that the power supply equipment can directly charge the battery through the charging connection port of the vehicle socket, thereby solving the problem of battery depletion in electric vehicles.

[0178] In this application embodiment, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent the existence of A alone, the simultaneous existence of A and B, or the existence of B alone. A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, and c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0179] The above description is merely a specific embodiment of this application. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application. The protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A charging control device, characterized in that, The charging control device is applied to an electric vehicle, which includes a battery and at least one vehicle socket, the vehicle socket including a charging connection port, and the charging control device is connected between the battery and the charging connection port. The charging control device includes a switch module and a switch control system, wherein the switch module is connected between the battery and at least one of the charging connection ports, and the switch control system is connected to the switch module; The switch control system is used to control the switch module to be in a closed state if it detects that the battery charge is less than a first charge threshold.

2. The charging control device according to claim 1, characterized in that, The switch control system is used to detect that the battery voltage is less than a first voltage threshold, so as to detect that the battery charge is less than a first charge threshold.

3. The charging control device according to claim 1, characterized in that, The switch control system is also used to control the switch module to be in an open state if it detects that the battery charge is greater than a second charge threshold, wherein the second charge threshold is greater than the first charge threshold.

4. The charging control device according to claim 3, characterized in that, The switch control system is used to detect that the battery voltage is greater than a second voltage threshold, so as to detect that the battery charge is greater than a second charge threshold.

5. The charging control device according to claim 1, characterized in that, The charging control device also includes a voltage regulator module; The voltage regulator module is connected between the charging port and the switching module; or... The voltage regulator module is connected between the switching module and the battery.

6. The charging control device according to claim 1, characterized in that, The at least one vehicle socket includes an AC socket, and the charging connection port includes a control guide port; or... The at least one vehicle socket includes a DC socket, and the charging connection port includes an auxiliary power port; or... The at least one vehicle socket includes an AC socket and a DC socket, and the two charging connection ports include a control guide port and an auxiliary power port.

7. The charging control device according to any one of claims 1 to 6, characterized in that, The switch module is a normally open switch.

8. The charging control device according to any one of claims 1 to 7, characterized in that, The switching module includes a contact switch or a relay.

9. The charging control device according to any one of claims 1 to 8, characterized in that, The switch control system is powered by the battery, or the switch control system is powered by an independent power source.

10. The charging control device according to any one of claims 1 to 9, characterized in that, The switch control system is integrated into the switch module.

11. A storage battery, characterized in that, The battery is used in an electric vehicle, which includes at least one vehicle socket, the vehicle socket including a charging connection port; The battery includes: a battery controller, the battery controller including a switch module and a switch control system, the switch control system being connected to the switch module, and the battery controller being used to connect to at least one of the charging connection ports; The switch control system is used to control the switch module to be in a closed state if it detects that the battery power is less than a first power threshold.

12. The storage battery according to claim 11, characterized in that, The switch control system is used to detect that the battery voltage is less than a first voltage threshold, so as to detect that the battery charge is less than a first charge threshold.

13. The storage battery according to claim 11, characterized in that, The switch control system is also used to control the switch module to be in an open state if it detects that the battery charge is greater than a second charge threshold, wherein the second charge threshold is greater than the first charge threshold.

14. The storage battery according to claim 13, characterized in that, The switch control system is used to detect that the battery voltage is greater than a second voltage threshold, so as to detect that the battery charge is greater than a second charge threshold.

15. The storage battery according to claim 11, characterized in that, The battery controller also includes a voltage regulator module; The voltage regulator module is connected between the charging port and the switch module.

16. The storage battery according to claim 11, characterized in that, The at least one vehicle socket includes an AC socket, and the charging connection port includes a control guide port; or... The at least one vehicle socket includes a DC socket, and the charging connection port includes an auxiliary power port; or... The at least one vehicle socket includes an AC socket and a DC socket, and the two charging connection ports include a control guide port and an auxiliary power port.

17. The storage battery according to any one of claims 11 to 16, characterized in that, The switch module is a normally open switch.

18. The storage battery according to any one of claims 11 to 17, characterized in that, The switching module includes a contact switch or a relay.

19. An electric vehicle, characterized in that, include: The charging control device according to any one of claims 1 to 10 or the storage battery according to any one of claims 11 to 18.

20. A charging method, characterized in that, The method is applied to a charging control device, which is applied to an electric vehicle. The electric vehicle includes a battery and at least one vehicle socket, the vehicle socket including a charging connection port, and the charging control device is connected between the battery and the charging connection port. The charging control device includes a switch module and a switch control system, wherein the switch module is connected between the battery and at least one of the charging connection ports, and the switch control system is connected to the switch module; The method includes: The switch control system detects that the battery's charge level is less than a first charge threshold, and controls the switch module to be in a closed state, so that the charging connection port is electrically connected to the battery and the charging connection port charges the battery.

21. The charging method according to claim 20, characterized in that, The method further includes: The switch control system detects that the battery charge is greater than a second charge threshold and controls the switch module to be in an off state so that the charging connection port is disconnected from the battery. The second charge threshold is greater than the first charge threshold.

22. The charging method according to claim 21, characterized in that, The charging control device further includes a voltage regulator module; the method further includes: The voltage regulator module regulates and amplifies the charging voltage during the charging process.

23. A charging method, characterized in that, The method is applied to a storage battery, which is applied to an electric vehicle. The electric vehicle includes at least one vehicle socket, which includes a charging connection port. The storage battery includes a battery controller, which includes a switch module and a switch control system. The switch control system is connected to the switch module, and the battery controller is used to connect to at least one of the charging connection ports. The method includes: The switch control system detects that the battery's charge level is less than a first charge threshold, and controls the switch module to be in a closed state, so that the charging connection port is electrically connected to the battery and the charging connection port charges the battery.

24. The method according to claim 23, characterized in that, The method further includes: The switch control system detects that the battery charge is greater than a second charge threshold and controls the switch module to be in an off state so that the charging connection port is disconnected from the battery. The second charge threshold is greater than the first charge threshold.

25. The method according to claim 23, characterized in that, The battery further includes a voltage regulator module; the method further includes: The voltage regulator module regulates and amplifies the charging voltage during the charging process.

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