Vehicle, control guide circuit, and charging control method

Abstract

The application discloses a vehicle, a control guide circuit and a charging control method, and relates to the technical field of vehicle charging control. The vehicle comprises a vehicle body ground terminal, a first connection confirmation terminal, a first resistor and a vehicle controller, the first end of the first resistor is connected to the vehicle body ground terminal, the second end of the first resistor is connected to the first connection confirmation terminal, a first switch and a second resistor are connected in series, the first switch and the second resistor are connected in parallel with the first resistor, and the first connection confirmation terminal is provided with a first detection point. When the vehicle is scheduled to be charged, the vehicle controller can acquire a scheduled charging instruction, control the first switch to be closed according to the instruction, acquire a detection signal of the first detection point, and control the vehicle to enter a scheduled charging state according to the detection signal. When the vehicle enters the scheduled charging state and reaches a scheduled time, the first switch is controlled to be opened so that a power supply device charges the vehicle. Thus, the scheduled charging of the vehicle after the vehicle is connected to the power supply device is realized, and more vehicle scheduling demands of users can be met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle charging, in particular to a vehicle, a control guide circuit and a charging control method. BACKGROUND

[0002] At present, the reservation charging of a vehicle is generally to reserve a power supply device such as a charging pile, that is, to reserve a charging pile in advance, and then to establish a connection between the vehicle and the reserved charging pile when the vehicle arrives at the location of the reserved charging pile, so as to realize charging. However, in actual life, after the vehicle is connected with the charging pile, the user may not need to charge immediately, and at this time, the above-mentioned technology cannot meet the needs of the user. SUMMARY

[0003] The present application aims to at least solve one of the technical problems in the related art. To this end, one object of the present application is to provide a vehicle to realize reservation charging after the vehicle is connected with a power supply device, so as to meet more reservation needs of the user.

[0004] A second object of the present application is to provide a control guide circuit.

[0005] A third object of the present application is to provide a charging control method.

[0006] A fourth object of the present application is to provide another charging control method.

[0007] To achieve the above-mentioned objects, the first aspect of the present application provides a vehicle, which comprises a vehicle body ground terminal, a first connection confirmation terminal and a first resistor, a first end of the first resistor being connected with the vehicle body ground terminal, a second end of the first resistor being connected with the first connection confirmation terminal; a first switch and a second resistor, the first switch and the second resistor being connected in series, the first switch and the second resistor being connected in parallel with the first resistor after being connected in series; wherein the first connection confirmation terminal is provided with a first detection point; the vehicle further comprises a vehicle controller, the vehicle controller being configured to control the vehicle to enter a reservation charging state according to a detection signal of the first detection point.

[0008] The vehicle of the present application can obtain a reservation charging instruction when the vehicle is in reservation charging, and control the first switch to be closed according to the reservation charging instruction; then obtain a detection signal of the first detection point, and control the vehicle to enter a reservation charging state according to the detection signal of the first detection point; when the vehicle enters the reservation charging state and reaches a reservation time, control the first switch to be opened so that the power supply device charges the vehicle. Thus, reservation charging after the vehicle is connected with the power supply device is realized, and more reservation needs of the user can be met.

[0009] To achieve the above objectives, a second aspect of the present invention provides a control guidance circuit, including a first control guidance module and a second control guidance module. The first control guidance module is disposed on a power supply device, and the second control guidance module is disposed on a vehicle. The first control guidance module includes a fourth resistor, the first end of which is connected to a second preset power supply, and the second end of which is connected to a first connection confirmation terminal of the power supply device. The second control guidance module includes a first resistor, a second resistor, and a first switch. The first end of the first resistor is connected to the vehicle's ground terminal, and the second end of the first resistor is connected to the vehicle's first connection confirmation terminal. The first switch and the second resistor are connected in series, and the series-connected first switch and the second resistor are connected in parallel with the first resistor. The first connection confirmation terminal of the vehicle is provided with a first detection point, and the first connection confirmation terminal of the power supply device is provided with a second detection point. The vehicle also includes a vehicle controller, which is used to control the vehicle to enter a scheduled charging state based on the detection signal from the first detection point.

[0010] The control and guidance circuit of this invention can realize vehicle scheduled charging, thereby meeting users' needs for more scheduled vehicle charging and improving users' vehicle charging experience.

[0011] To achieve the above objectives, a third aspect of the present invention provides a charging control method, which is applied to the vehicle described in the above embodiment. The method includes the following steps: obtaining a scheduled charging instruction and controlling the first switch to close according to the scheduled charging instruction; obtaining a detection signal from the first detection point and controlling the vehicle to enter a scheduled charging state according to the detection signal from the first detection point; and controlling the first switch to open to charge the vehicle when the scheduled time is reached after the vehicle has entered the scheduled charging state.

[0012] The charging control method of this invention can realize scheduled charging at the vehicle end, thereby meeting users' needs for more scheduled vehicle charging and improving users' vehicle charging experience.

[0013] To achieve the above objectives, a fourth aspect of the present invention proposes another charging control method, which is applied to the control guidance circuit of the above embodiment. The method includes the following steps: a vehicle controller acquires a scheduled charging instruction and controls the first switch to close according to the scheduled charging instruction; acquires a detection signal from the first detection point and controls the vehicle to enter a scheduled charging state according to the detection signal from the first detection point; a power supply equipment controller acquires a detection signal from the second detection point and controls the power supply equipment to enter a scheduled charging state according to the detection signal from the second detection point; and when the vehicle enters the scheduled charging state and the scheduled time is reached, the vehicle controller controls the first switch to open to charge the vehicle.

[0014] The charging control method of this invention can realize scheduled charging at the vehicle end, thereby meeting users' needs for more scheduled vehicle charging and improving users' vehicle charging experience.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a vehicle according to the first embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of a vehicle according to the second embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of a vehicle according to the third embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of a vehicle according to the fourth embodiment of the present invention;

[0020] Figure 5 This is a flowchart of a charging control method according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the control guidance circuit of the first embodiment of the present invention;

[0022] Figure 7 This is a schematic diagram of the control guidance circuit according to the second embodiment of the present invention;

[0023] Figure 8 This is a schematic diagram of the control guidance circuit according to the third embodiment of the present invention;

[0024] Figure 9 This is a schematic diagram of the control guidance circuit according to the fourth embodiment of the present invention;

[0025] Figure 10This is a flowchart of a charging control method according to another embodiment of the present invention;

[0026] Figure 11 This is a schematic diagram of a vehicle reservation charging process according to a specific embodiment of the present invention. Detailed Implementation

[0027] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] The following is a reference appendix. Figures 1-11 This invention describes a vehicle, a control guidance circuit, and a charging control method according to embodiments of the present invention.

[0029] Figure 1 This is a structural schematic diagram of a vehicle implemented according to the present invention.

[0030] like Figure 1 As shown, the vehicle 100 includes: a body ground terminal PE, a first connection confirmation terminal CC1, a first resistor R4, a first switch S4 and a second resistor R8, and a vehicle controller 110.

[0031] See Figure 1 The first end of the first resistor R4 is connected to the vehicle body ground terminal PE, and the second end of the first resistor R4 is connected to the first connection confirmation terminal CC1 of the vehicle 100. The first switch S4 and the second resistor R8 are connected in series, and the series-connected first switch S4 and second resistor R8 are connected in parallel with the first resistor R4. The first connection confirmation terminal CC1 of the vehicle 100 has a first detection point, denoted as detection point 3; see [link to relevant documentation]. Figure 1 The first connection confirmation terminal CC1 of vehicle 100 is used to connect to the first connection confirmation terminal CC1 of power supply equipment 200, and the body ground terminal PE of vehicle 100 is used to connect to the equipment ground terminal PE of power supply equipment 200. Vehicle controller 110 is used to control vehicle 100 to enter the scheduled charging state according to the detection signal of the first detection point.

[0032] Specifically, see Figure 1When vehicle 100 schedules charging, the vehicle controller 110 in vehicle 100 receives a scheduled charging command and controls the first switch S4 to close according to the command. It then receives the detection signal from the first detection point (i.e., detection point 3) and controls vehicle 100 to enter the scheduled charging state based on the signal. When the scheduled time arrives after vehicle 100 has entered the scheduled charging state, the first switch S4 is opened to allow the power supply equipment 200 to charge vehicle 100. The detection signal from the first detection point can be a voltage signal; the scheduled time can be a time interval, i.e., scheduling charging of vehicle 100 a certain time after the current time; or it can be a specific point in time, i.e., starting charging of vehicle 100 when that time point is reached.

[0033] As an example, a scheduled charging instruction may include at least one of the following: scheduled time, scheduled battery level, scheduled charging power, scheduled battery temperature, and scheduled charging amount.

[0034] Specifically, the scheduled time can be a period of time or a specific point in time. The scheduled charge level can be a certain charge level, such as full charge (100% SOC), or a certain amount of charge. The scheduled charging power can include the scheduled charging current and voltage. For example, if a vehicle's charging process includes constant voltage charging and constant current charging, the scheduled charging current can be the current used during constant current charging, and the scheduled charging voltage can be the voltage used during constant voltage charging. The scheduled battery temperature can be the temperature at which the vehicle starts charging or the temperature at which charging ends. For example, in cold weather, the vehicle needs to heat the battery before starting charging, and charging begins when the battery temperature reaches the scheduled temperature. Conversely, in hot weather or if the battery itself is prone to overheating, charging may stop when the battery temperature reaches the highest scheduled temperature. The scheduled charging amount refers to the amount of money needed to charge the vehicle. This amount is calculated from the start of charging, and charging stops when the amount reaches the scheduled amount. By setting these scheduled charging instructions, the diversity of vehicle pre-charging is increased, meeting different user charging needs.

[0035] Specifically, see Figure 1The power supply device 200 includes a fourth resistor R1 connected to the second preset power supply U2, and the switch in the vehicle 100 is a normally open switch. When the power supply device 200 is not connected to the vehicle 100, there is no voltage at detection point 3; when the power supply device 200 is connected to the vehicle 100, the fourth resistor R1 is connected in series with the first resistor R4, and there is voltage at detection point 3, which is recorded as the first voltage. This first voltage can be calculated from the resistance values ​​of resistors R1 and R4 and the voltage provided by the second preset power supply U2. When the vehicle 100 receives a scheduled charging command, it controls the first switch S4 to close. The vehicle 100 can receive the scheduled charging command when the power supply device 200 is not connected to the vehicle 100, or when the power supply device 200 is connected to the vehicle 100. At this time, if the power supply equipment 200 is not connected to the vehicle 100, there will be no voltage at detection point 3. The reservation process will only begin when the power supply equipment 200 is connected to the vehicle 100. If the power supply equipment 200 is connected to the vehicle 100, the second resistor R8 is connected in parallel with the first resistor R4, and then in series with the fourth resistor R1. The voltage at detection point 3 becomes the second voltage, which is lower than the first voltage. When the detection signal at detection point 3 is determined to be the second voltage, the vehicle 100 can be controlled to enter the reservation charging state, i.e., the vehicle 100 enters the reservation charging waiting state, and simultaneously, the vehicle 100 starts timing or timer. If the reservation time is long, the vehicle 100 can enter a sleep state to reduce its power consumption. When the vehicle 100 reaches the reservation time after entering the reservation charging state, the vehicle 100 can control the first switch S4 to open, the voltage at detection point 3 becomes the first voltage, the reservation charging is successful, and the charging process for the vehicle 100 begins. After entering the charging process, charging control can be performed according to the parameters in the reservation charging command.

[0036] Therefore, the vehicle 100 can be scheduled for charging, thereby meeting the user's scheduled charging needs and improving the user's charging experience.

[0037] In one embodiment of the present invention, such as Figure 2 As shown, the power supply equipment 200 may also include a switch S and a resistor R2. The switch S and the resistor R2 are connected in series between the equipment ground terminal of the power supply equipment 200 and the first connection confirmation terminal CC1 of the power supply equipment 200; the first connection confirmation terminal CC1 of the power supply equipment 200 is provided with a detection point 1.

[0038] Specifically, in this embodiment, when the power supply device 200 is not connected to the vehicle 100, the fourth resistor R1 is connected in series with the resistor R2, and there is no voltage at detection point 3. When the power supply device 200 is connected to the vehicle 100, the resistor R2 is connected in parallel with the first resistor R4, and then connected in series with the fourth resistor R1. The voltage at detection points 1 and 3 is a first voltage, such as 4V. This first voltage can be calculated from the resistance values ​​of resistors R1, R2, and R4 and the voltage provided by the second preset power supply U2. After the first switch S4 is closed, the second resistor R8 is connected in parallel with the first resistor R4, and then in parallel with the resistor R2, and then connected in series with the fourth resistor R1. The voltage at detection points 1 and 3 becomes a second voltage, such as 2V, which is less than the first voltage. When the detection signal at detection point 3 is determined to be the second voltage based on the detection signal at detection point 3, the vehicle 100 can be controlled to enter a scheduled charging state, that is, the vehicle 100 enters a scheduled charging waiting state, and at the same time, the vehicle 100 starts timing or timer. If the scheduled charging time is long, vehicle 100 can enter a sleep state to reduce its power consumption. When vehicle 100 enters the scheduled charging state and the scheduled time is reached, vehicle 100 can control the first switch S4 to open, and the voltage at detection point 3 will change to the first voltage, such as 4V, indicating that the scheduled charging is successful. Then, the charging process for vehicle 100 will begin.

[0039] It should be noted that, Figure 2 The illustrated embodiments and Figure 1 The difference in the illustrated embodiment is that a resistor R2 and a switch S are provided in the power supply device 200, so that during the scheduled charging process of the vehicle 100, Figure 2 The detection signal of detection point 3 in the illustrated embodiment is different. Figure 1 The detection signal of detection point 3 in the embodiment shown.

[0040] In one embodiment of the present invention, such as Figure 3 As shown, the power supply equipment 200 may also include a switch S1 and a resistor R6, which are connected in series, and the series-connected switch S1 and resistor R6 are connected in parallel with the fourth resistor R1.

[0041] Specifically, in this embodiment, the difference is... Figure 2In the illustrated embodiment, when the vehicle 100 enters the scheduled charging state and reaches the scheduled time, the power supply device 200 can control switch S1 to close, and the voltage at detection point 1 increases from a second voltage (e.g., 2V) to a third voltage (e.g., 8V). This rising edge serves as a wake-up command to wake up the vehicle 100. The power supply device 200 can control switch S1 to close via a message sent by the vehicle 100. For example, when the vehicle 100 reaches the scheduled time after entering the scheduled charging state, it sends a scheduled charging start command to the power supply device 200 via a CAN message. Upon receiving this message, the power supply device 200 triggers the closing of control switch S1. Alternatively, the power supply device 200 can trigger the closing of its own timer or timing mechanism. For instance, when the power supply device 200 determines that the detection signal at detection point 1 is the second voltage based on the detection signal at detection point 1, it starts timing or timing. When the vehicle 100 enters the scheduled charging state and reaches the scheduled time, the power supply device 200 triggers the closing of control switch S1. After receiving the wake-up command, the vehicle 100 disconnects the first switch S4, and the voltage at detection point 3 increases from the third voltage to a fourth voltage (e.g., 10V). At the same time, the power supply equipment 200 detects that the voltage at detection point 1 has changed to the fourth voltage, and disconnects switch S1. At this time, the voltage at detection point 1 and detection point 3 both change to the first voltage, such as 4V. The scheduled charging is successful, and then the charging process for vehicle 100 begins.

[0042] In other words, Figure 3 The illustrated embodiments and Figure 2 The difference in the illustrated embodiment is that the power supply device 200 includes a resistor R6 and a switch S1, so that during the scheduled charging process of the vehicle 100, Figure 3 The detection signal of detection point 3 in the illustrated embodiment is different. Figure 2 The detection signal of detection point 3 in the embodiment shown can be used to wake up vehicle 100 by voltage rising edge.

[0043] In one embodiment of the present invention, such as Figure 4 As shown, the vehicle 100 may further include a third resistor R5 and a second connection confirmation terminal CC2. Correspondingly, the power supply device 200 may also include a resistor R3 and a second connection confirmation terminal CC2.

[0044] See Figure 4 The first end of the third resistor R5 is connected to the first preset power supply U2, and the second end of the third resistor R5 is connected to the second connection confirmation terminal CC2 of the vehicle 100. The second confirmation terminal CC2 of the vehicle 100 has a second detection point, denoted as detection point 2; the second connection confirmation terminal CC2 of the vehicle 100 is used to connect to the second connection confirmation terminal CC2 of the power supply equipment 200. Resistor R3 is connected between the equipment ground terminal of the power supply equipment 200 and the second connection confirmation terminal CC2 of the power supply equipment 200.

[0045] Specifically, see Figure 4 When the power supply device 200 is not connected to the vehicle 100, the voltage at detection point 2 is the voltage provided by U2. When the power supply device 200 is connected to the vehicle 100, resistor R3 and the third resistor R5 are connected in series, and the voltage at detection point 2 decreases. Therefore, if the voltage at detection point 2 is less than the voltage provided by the second preset power supply U2, it indicates that the second connection confirmation terminal CC2 of the vehicle 100 is connected to the second connection confirmation terminal CC2 of the power supply device 200.

[0046] It should be noted that, Figure 4 The illustrated embodiments and Figure 3 The difference in the illustrated embodiment is that a resistor R3 is also provided in the power supply device 200 and a resistor R5 is also provided in the vehicle 100, thereby enabling the detection of the connection of the CC2 terminal, and thus enabling the vehicle 100 to detect whether the power supply device 200 and the vehicle 100 are connected.

[0047] In the above embodiments, the first resistor R4, the second resistor R8, and the first switch S4 in the vehicle 100 can be installed in the socket on the vehicle 100 that connects to the plug of the power supply device 200, or they can be installed in other locations on the vehicle body outside the socket. The resistors R2 and R3 and the switch S1 in the power supply device 200 can be installed in the plug (e.g., a charging gun) connecting the power supply device 200 (e.g., a charging pile) to the socket on the vehicle 100, while the resistors R1 and R6 and the switch S1 can be installed in other locations outside the plug of the power supply device 200.

[0048] See Figures 1-4 The power supply equipment 200 is also equipped with a power supply power module and switches K1 and K2, and the vehicle 100 is also equipped with switches K5 and K6, so that the power supply power module can charge the power battery of the vehicle 100.

[0049] In summary, the vehicle 100 of this embodiment of the invention enables scheduled charging at the vehicle 100 end, thereby meeting the user's scheduled charging needs and improving the user's charging experience. Simultaneously, it can also confirm the connection status between the second connection confirmation terminal CC2 of the power supply device 200 and the second connection confirmation terminal CC2 of the vehicle 100, ensuring the reliability of the charging connection and thus guaranteeing charging safety to a certain extent.

[0050] Based on the vehicle 100 of the above embodiments, the present invention also proposes a charging control method, which is applied to the vehicle 100 of the above embodiments.

[0051] In this embodiment, such as Figure 5 As shown, the charging control method includes the following steps:

[0052] S51, obtain the scheduled charging instruction, and control the first switch S4 to close according to the scheduled charging instruction.

[0053] Specifically, the scheduled charging command can be entered via an app installed on the vehicle's in-vehicle terminal, or via an app installed on a mobile terminal such as a smartphone linked to the vehicle. Upon receiving the scheduled charging command, the vehicle can trigger vehicle control... Figure 1 When the first switch S4 is closed, the first resistor R4 and the second resistor R8 are connected in parallel, and the voltage at detection point 3 decreases.

[0054] The scheduled charging instruction may include at least one of the following: scheduled time, scheduled battery level, scheduled charging power, scheduled battery temperature, and scheduled charging amount.

[0055] Specifically, the scheduled time can be a period of time or a specific point in time. The scheduled charge level can be charging to a certain level, such as full charge (100% SOC), or charging a certain amount of electricity. The scheduled charging power can include the scheduled charging current and voltage. For example, if a vehicle's charging process includes constant voltage charging and constant current charging, the scheduled charging current can be the current used during constant current charging, and the scheduled charging voltage can be the voltage used during constant voltage charging. The scheduled battery temperature can be the temperature at which the vehicle begins charging or the temperature at which charging ends. For example, in cold weather, the vehicle needs to heat the battery before starting charging, and charging begins when the battery temperature reaches the scheduled temperature. Conversely, in hot weather or if the battery itself is prone to overheating, charging may stop when the battery temperature reaches the highest scheduled temperature. The scheduled charging amount refers to the amount of money needed to charge the vehicle. This amount is calculated from the start of charging, and charging stops when the amount reaches the scheduled amount.

[0056] Therefore, by setting the above-mentioned scheduled charging instructions, the diversity of vehicle pre-charging is increased, which can meet the different charging needs of users.

[0057] S52, acquire the detection signal of the first detection point, and control the vehicle to enter the scheduled charging state according to the detection signal of the first detection point.

[0058] S53, after the vehicle enters the scheduled charging state and the scheduled time is reached, controls the first switch S4 to open to charge the vehicle.

[0059] In one embodiment of the present invention, before the first switch S4 is turned off, the charging control method may further include: acquiring a wake-up command and waking up the vehicle according to the wake-up command.

[0060] The function of waking up the vehicle is to control the first switch S4 to disconnect.

[0061] In one embodiment of the present invention, the charging control method may further include: acquiring Figure 4 The detection signal at detection point 2 is used to determine the connection status between the second connection confirmation terminal CC2 of vehicle 100 and the second connection confirmation terminal CC2 of power supply equipment 200, so as to ensure the reliability of the charging connection and thus ensure the safety of charging to a certain extent.

[0062] It should be noted that for other specific embodiments of the charging control method of the present invention, please refer to the specific embodiments of the vehicle 100 of the above embodiments of the present invention.

[0063] In summary, the charging control method of this invention enables scheduled charging at the vehicle end, thereby meeting users' diverse needs for scheduled vehicle charging and improving their vehicle charging experience. Simultaneously, it can confirm the connection status between the second connection confirmation terminal CC2 of the power supply equipment and the second connection confirmation terminal CC2 of the vehicle, ensuring the reliability of the charging connection and thus guaranteeing charging safety to a certain extent.

[0064] Figure 6 This is a schematic diagram of the control and guidance circuit according to an embodiment of the present invention.

[0065] like Figure 6 As shown, the control guidance circuit 300 includes a first control guidance module 310 and a second control guidance module 320. The first control guidance module 310 is installed on the power supply equipment 200, and the second control guidance module 320 is installed on the vehicle 100.

[0066] See Figure 6 The first control guidance module 310 includes a fourth resistor R1. The first end of the fourth resistor R1 is connected to the second preset power supply U1, and the second end of the fourth resistor R1 is connected to the first connection confirmation terminal CC1 of the power supply device 200. The second control guidance module 320 includes a first resistor R4, a second resistor R8, and a first switch S4. The first end of the first resistor R4 is connected to the vehicle body ground terminal PE of the vehicle 100, and the second end of the first resistor R4 is connected to the first connection confirmation terminal CC1 of the vehicle 100. The first switch S4 and the second resistor R8 are connected in series, and the series-connected first switch S4 and second resistor R8 are connected in parallel with the first resistor R4. The first connection confirmation terminal CC1 of the vehicle 100 has a first detection point, denoted as detection point 3, and the first connection confirmation terminal CC1 of the power supply device 200 has a second detection point, denoted as detection point 1. The vehicle 100 also includes a vehicle controller 110, which is used to control the vehicle 100 to enter the scheduled charging state based on the detection signal from the first detection point.

[0067] Specifically, see Figure 5When vehicle 100 schedules charging, vehicle controller 110 receives a scheduled charging command and controls the first switch S4 to close accordingly; it also receives a detection signal from the first detection point and controls vehicle 100 to enter the scheduled charging state; the power supply equipment controller receives a detection signal from the second detection point and controls the power supply equipment 200 to enter the scheduled charging state; after vehicle 100 enters the scheduled charging state and the scheduled time is reached, vehicle controller 110 controls the first switch S4 to open to charge vehicle 100. The detection signals from the first and second detection points can both be voltage signals. The scheduled time can be a time interval, i.e., scheduling vehicle 100 to start charging a certain amount of time after the current time; or it can be a specific point in time, i.e., starting charging vehicle 100 when the current time is reached. See the above for details. Figure 1 Description of the illustrated embodiment.

[0068] Therefore, the control guidance circuit 300 can realize scheduled charging, thereby meeting the user's scheduled charging needs for vehicle 100 and improving the user's vehicle 100 charging experience.

[0069] In one embodiment of the present invention, such as Figure 7 As shown, the first control guidance module 310 may further include: a fifth resistor R2 and a second switch S, wherein the fifth resistor R2 and the second switch S are connected in series between the device ground terminal PE of the power supply device 200 and the first connection confirmation terminal CC1 of the power supply device 200. In this embodiment, the vehicle 100's scheduled charging process can be referred to the above-described... Figure 2 Description of the illustrated embodiment.

[0070] In one embodiment of the present invention, such as Figure 8 As shown, the first control guidance module 310 may further include: a seventh resistor R6 and a third switch S1, wherein the seventh resistor R6 and the third switch S1 are connected in series, and the series-connected seventh resistor R6 and third switch S1 are connected in parallel with a fourth resistor R1. In this embodiment, the scheduled charging process of the vehicle 100 can be referred to the above-described... Figure 3 Description of the illustrated embodiment.

[0071] In one embodiment of the present invention, such as Figure 9As shown, the first control guidance module 310 may further include a sixth resistor R3, the first end of which is connected to the device ground terminal PE of the power supply device 200, and the second end of which is connected to the second connection confirmation terminal CC2 of the power supply device 200. The second control guidance module 320 may further include a third resistor R5, the first end of which is connected to the first preset power supply U2, and the second end of which is connected to the second connection confirmation terminal CC2 of the vehicle 100. The second connection confirmation terminal CC2 of the vehicle 100 is provided with a third detection point, namely detection point 2. In this embodiment, the vehicle 100's scheduled charging process can be referred to the above-described... Figure 4 Description of the illustrated embodiment.

[0072] In summary, the control guidance circuit 300 of this embodiment of the invention can realize scheduled charging of vehicle 100, thereby meeting the user's scheduled charging needs for vehicle 100 and improving the user's vehicle 100 charging experience. At the same time, it can also confirm the connection status between the second connection confirmation terminal CC2 of the power supply device 200 and the second connection confirmation terminal CC2 of vehicle 100 to ensure the reliability of the charging connection, and thus ensure the safety of charging to a certain extent.

[0073] Based on the control and guidance circuit 300 described above, the present invention proposes another charging control method, which is applied to the control and guidance circuit 300 of the above embodiment.

[0074] like Figure 10 As shown, the charging control method includes the following steps:

[0075] S101, the vehicle controller receives the scheduled charging instruction and controls the first switch S4 to close according to the scheduled charging instruction.

[0076] S102, acquire the detection signal of the first detection point, and control the vehicle to enter the scheduled charging state according to the detection signal of the first detection point.

[0077] S103, the power supply equipment controller obtains the detection signal from the second detection point and controls the power supply equipment to enter the scheduled charging state based on the detection signal from the second detection point.

[0078] S104, when the vehicle enters the scheduled charging state and the scheduled time is reached, the vehicle controller controls the first switch S4 to open to charge the vehicle.

[0079] In one embodiment of the present invention, the charging control method may further include: when the power supply equipment enters the scheduled charging state and the scheduled time is reached, the power supply equipment controller controls the third switch S1 to close to form a wake-up command, wherein the wake-up command is used to wake up the vehicle to control the first switch S4 to open.

[0080] In one embodiment of the present invention, after the third switch S1 is closed, the charging control method may further include: the vehicle controller acquiring the detection signal of the first detection point (i.e., detection point 3) and controlling the first switch S4 to open according to the detection signal of the first detection point; the power supply equipment controller acquiring the detection signal of the second detection point and controlling the third switch S1 to open according to the detection signal of the second detection point.

[0081] The following is based on Figure 9 Taking the illustrated embodiment as an example, combined with Figure 11 Explanation of the charging control method in this embodiment of the invention:

[0082] See Figure 9 , Figure 11 The plug of the power supply equipment (such as a charging pile) is connected to the vehicle's socket. The power supply equipment controller determines the voltage at detection point 1 to be a first voltage, such as 4V. The vehicle controller determines the voltage at detection point 2 to be a reference connection voltage, such as 6V. The voltage at detection point 3 is the same as the voltage at detection point 1. The vehicle controller receives a scheduled charging command, and vehicle 100 starts scheduled charging. It can also send scheduled charging related information, such as the scheduled time, to the power supply equipment 200. Vehicle 100 can control switch S4 to close according to the scheduled charging command, and the voltage at detection point 3 becomes a second voltage, such as 2V. The power supply equipment controller determines that the voltage at detection point 1 is 2V, indicating that the vehicle is ready for scheduled charging. The vehicle and the power supply equipment enter the scheduled charging waiting state, and both vehicle 100 and power supply equipment 200 can start timing or timer. When the scheduled time is reached after entering the scheduled charging waiting state, the power supply equipment controller controls switch S1 to close, and the voltage at detection point 1 changes from the second voltage, such as 2V, to a third voltage, such as 8V. Correspondingly, the voltage at detection point 3 rises from 2V to 8V, and this rising edge wakes up vehicle 100. The vehicle controller control switch S4 is opened, and the voltage at detection point 3 changes to a fourth voltage, such as 10V. At the same time, the power supply equipment 200 detects that the voltage at detection point 1 has changed to 10V, and the control switch S1 is opened, so the voltage at detection point 1 changes to 4V. Meanwhile, the voltage at detection point 2 is 6V, the scheduled charging is successful, and the process of charging vehicle 100 begins.

[0083] It should be noted that other specific embodiments of the present invention can be found in the specific embodiments of the control and guidance circuit of the above embodiments of the present invention.

[0084] In summary, the charging control method of this invention enables scheduled charging at the vehicle end, thereby meeting users' scheduled charging needs and improving their vehicle charging experience. Simultaneously, it can confirm the connection status between the second connection confirmation terminal CC2 of the power supply equipment and the second connection confirmation terminal CC2 of the vehicle, ensuring the reliability of the charging connection and thus guaranteeing charging safety to a certain extent.

[0085] It should be noted that scheduled charging can also be done at the power supply equipment end, combined with... Figure 4 , Figure 9 The process is illustrated in the following embodiment:

[0086] Specifically, when the power supply device 200 is connected to the vehicle 100, the voltage at detection point 1 is a first voltage, such as 4V, and the voltage at detection point 2 is a reference connection voltage, such as 6V. When the operator makes a one-click reservation charging setting through the power supply device's APP program or the display screen on the power supply device 200, the power supply device 200 starts the reservation charging process. After receiving the reservation charging command, the power supply device controller closes the control switch S1, allowing the power supply device 200 to start reservation charging. At this time, the voltage at detection point 1 increases, for example, to 10V. Simultaneously, detection point 3 also detects a voltage of 10V, so the vehicle 100 begins to respond to the reservation charging request from the power supply device 200 and closes the control switch S4. At this time, the voltage at detection point 3 is less than 10V, such as 8V. This voltage status informs the power supply device 200 that the vehicle 100 has accepted the reservation charging response request, and the voltage at detection point 1 is synchronously 8V. This voltage status indicates that the power supply device 200 has received confirmation that the vehicle 100 has entered the reservation charging preparation process. At the same time, the power supply equipment 200 disconnects switch S1 and begins the scheduled charging process. At this time, the voltage at detection point 1 decreases. If it decreases to 2V, it means that the scheduled charging is in progress. Similarly, the voltage at detection point 3 is also 2V. The vehicle 100 enters the scheduled charging waiting state. That is, the vehicle 100 and the power supply equipment 200 are scheduled to wait together. During this period, if the scheduled time is long, the vehicle 100 will enter a sleep state and wait to be woken up.

[0087] When the power supply equipment 200 enters the reservation waiting state and the reservation time is reached, it closes switch S1. The voltage at detection point 1 becomes 8V. After the voltage at detection point 3 of vehicle 100 also becomes 8V, it is woken up by a rising edge signal from 2V to 8V. Vehicle 100 begins to accept the instructions for the reservation charging process and opens switch S4. At this time, the voltage at detection point 3 is 10V. Simultaneously, the power supply equipment 200 detects that the voltage at detection point 1 is 10V, opens switch S1, and the voltage at detection point 1 is 4V. At this time, the voltage at detection point 2 is 6V, the reservation charging is successful, and the charging process for vehicle 100 begins.

[0088] It should be noted that, similar to the scheduled charging of vehicle 100 mentioned above, power supply equipment 200 can also obtain a scheduled charging command when power supply equipment 200 is not connected to vehicle 100, and then control switch S1 to close. After power supply equipment 200 is connected to vehicle 100, the subsequent scheduled charging process will be executed.

[0089] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0090] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0091] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0092] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0093] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0094] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0095] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0096] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A vehicle, characterized in that, The vehicles include: The vehicle body ground terminal, the first connection confirmation terminal, and the first resistor, wherein the first end of the first resistor is connected to the vehicle body ground terminal and the second end of the first resistor is connected to the first connection confirmation terminal; A first switch and a second resistor are connected in series, and the series connection of the first switch and the second resistor is connected in parallel with the first resistor. The first switch is a normally open switch. The first connection confirmation terminal is provided with a first detection point; The vehicle also includes a vehicle controller, which is used to control the first switch to close according to the scheduled charging instruction, control the vehicle to enter the scheduled charging state according to the detection signal of the first detection point, and control the first switch to open to charge the vehicle when the scheduled time is reached after the vehicle enters the scheduled charging state.

2. The vehicle as described in claim 1, characterized in that, The vehicle also includes: The third resistor is connected to the first preset power supply at its first end and to the second connection confirmation terminal at its second end. The second connection confirmation terminal is provided with a second detection point.

3. A control and guidance circuit, characterized in that, It includes a first control guidance module and a second control guidance module, wherein the first control guidance module is installed on the power supply equipment and the second control guidance module is installed on the vehicle; The first control guidance module includes a fourth resistor, the first end of which is connected to a second preset power supply, and the second end of which is connected to the first connection confirmation terminal of the power supply device. The second control guidance module includes a first resistor, a second resistor, and a first switch. The first end of the first resistor is connected to the vehicle's ground terminal, and the second end of the first resistor is connected to the vehicle's first connection confirmation terminal. The first switch and the second resistor are connected in series, and the series-connected first switch and the second resistor are connected in parallel with the first resistor. The first switch is a normally open switch. The vehicle's first connection confirmation terminal is provided with a first detection point, and the power supply equipment's first connection confirmation terminal is provided with a second detection point. The vehicle also includes a vehicle controller, which is used to control the first switch to close according to the scheduled charging instruction, control the vehicle to enter the scheduled charging state according to the detection signal of the first detection point, and control the first switch to open to charge the vehicle when the scheduled time is reached after the vehicle enters the scheduled charging state.

4. The control and guidance circuit as described in claim 3, characterized in that, The first control guidance module further includes: A fifth resistor and a second switch are connected in series between the equipment ground terminal and the first connection confirmation terminal of the power supply equipment.

5. The control and guidance circuit as described in claim 3, characterized in that, The first control guidance module further includes a sixth resistor, the first end of which is connected to the device ground terminal of the power supply equipment, and the second end of which is connected to the second connection confirmation terminal of the power supply equipment. The second control guidance module also includes a third resistor, the first end of which is connected to a first preset power supply, and the second end of which is connected to the second connection confirmation terminal of the vehicle. The second connection confirmation terminal of the vehicle is provided with a third detection point.

6. The control and guidance circuit as described in claim 3, characterized in that, The first control guidance module further includes: A seventh resistor and a third switch are connected in series, and the series-connected seventh resistor and third switch are connected in parallel with the fourth resistor.

7. A charging control method, characterized in that, The method is applied to the vehicle as described in claim 1 or 2, and the method includes the following steps: Obtain a scheduled charging instruction and control the first switch to close according to the scheduled charging instruction; The detection signal of the first detection point is obtained, and the vehicle is controlled to enter the scheduled charging state according to the detection signal of the first detection point; When the vehicle enters the scheduled charging state and the scheduled time is reached, the first switch is controlled to disconnect to charge the vehicle.

8. The charging control method as described in claim 7, characterized in that, Before controlling the first switch to open, the method further includes: Obtain a wake-up command and wake up the vehicle according to the wake-up command.

9. The charging control method as described in claim 7, characterized in that, The scheduled charging instruction includes at least one of the following: scheduled time, scheduled battery level, scheduled charging power, scheduled battery temperature, and scheduled charging amount.

10. A charging control method, characterized in that, The method is applied to the control guidance circuit as described in any one of claims 3-6, and the method includes the following steps: The vehicle controller receives a scheduled charging instruction and controls the first switch to close according to the scheduled charging instruction; The detection signal of the first detection point is obtained, and the vehicle is controlled to enter the scheduled charging state according to the detection signal of the first detection point; The power supply equipment controller acquires the detection signal from the second detection point and controls the power supply equipment to enter the scheduled charging state based on the detection signal from the second detection point; When the vehicle enters the scheduled charging state and the scheduled time is reached, the vehicle controller controls the first switch to disconnect to charge the vehicle.

11. The charging control method as described in claim 10, characterized in that, The first control guidance module further includes a seventh resistor and a third switch, wherein the seventh resistor and the third switch are connected in series, and the series-connected seventh resistor and third switch are connected in parallel with the fourth resistor; the method further includes: When the power supply equipment enters the scheduled charging state and the scheduled time is reached, the power supply equipment controller controls the third switch to close to generate a wake-up command, wherein the wake-up command is used to wake up the vehicle to control the first switch to open.

12. The charging control method as described in claim 11, characterized in that, After controlling the third switch to close, the method further includes: The vehicle controller acquires the detection signal from the first detection point and controls the first switch to disconnect based on the detection signal from the first detection point; The power supply equipment controller acquires the detection signal from the second detection point and controls the third switch to disconnect based on the detection signal from the second detection point.

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