Load circuit of vehicle distribution box, vehicle distribution box and control method

Abstract

The application discloses a load circuit of a vehicle distribution box, the vehicle distribution box and a control method. The vehicle distribution box comprises a load circuit of the vehicle distribution box and a power supply end, the load circuit of the vehicle distribution box comprises a controller, a main power supply output module, an auxiliary power supply output module, a pre-charging module and a voltage monitoring module, the controller is connected with the main power supply output module, the auxiliary power supply output module, the pre-charging module and the voltage monitoring module respectively, the main power supply output module, the auxiliary power supply output module and the pre-charging module are connected with the power supply end and a load end respectively, and the voltage monitoring module is connected with the load end. The pre-charging module is used for supplying power to the load end first, and the voltage monitoring module is used for monitoring the voltage of the load end in real time; when the voltage of the load end reaches a threshold voltage, the main power supply output module is controlled to be turned on, the power supply to the load end is completed, the load end is prevented from bearing a large current impact, the service life of the load end is prolonged, and the production cost of the load circuit of the vehicle distribution box is reduced.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and in particular to a load circuit of a vehicle power distribution box, a vehicle power distribution box, and a control method thereof. Background Technology

[0002] In related technologies, when the load circuit of a smart power distribution box is subjected to a large number of high current surges, the lifespan of the components will be reduced, requiring the selection of higher-specification components, which increases costs. Furthermore, when installed in different vehicle models, it is necessary to adapt to new loads and frequently make changes based on load characteristics, resulting in poor adaptability. Summary of the Invention

[0003] This application provides a load circuit for a vehicle power distribution box, the vehicle power distribution box, and a control method.

[0004] This application provides a load circuit for a vehicle power distribution box, including a controller, a main power output module, an auxiliary power output module, a pre-charge module, and a voltage monitoring module. The controller is connected to the main power output module, the auxiliary power output module, the pre-charge module, and the voltage monitoring module. The main power output module is connected to the power supply terminal and the load terminal. The auxiliary power output module is connected to the power supply terminal and the load terminal. The pre-charge module is connected to the power supply terminal and the load terminal. The voltage monitoring module is connected to the load terminal.

[0005] The controller is used to control the pre-charge module to supply power to the load when a power supply request is received, and to turn on the main power output module to supply power to the load when the voltage monitoring module detects that the voltage of the load is greater than the threshold voltage, and to turn off the pre-charge module after a preset time.

[0006] The controller is also configured to, upon receiving a hibernation request, shut down the main power output module and turn on the auxiliary power output module to supply power to the load.

[0007] The load circuit of the vehicle power distribution box of this application, by setting up a controller, a main power output module, an auxiliary power output module, a pre-charge module, and a voltage monitoring module, enables the power supply end to supply power to the load end. The pre-charge module supplies power to the load end first, and the voltage monitoring module monitors the load end voltage in real time. When the load end voltage reaches the threshold voltage, the controller controls the main power output module to turn on, completing the power supply to the load end. Upon receiving a sleep request, the controller controls the main power output module to turn off and turns on the auxiliary power output module to supply power to the load end normally. In this way, the load end is avoided from being subjected to large current surges, the service life of the load end is improved, and the production cost of the load circuit of the vehicle power distribution box is reduced.

[0008] In some implementations, the controller is also configured to, upon receiving a wake-up request, control the auxiliary power output module to shut down and the main power output module to turn on to supply power to the load.

[0009] In some embodiments, the controller is further configured to, upon initial connection to the power supply terminal, shut down the main power output module and the auxiliary power output module, and query whether the load terminal is connected to a load, and in the event of...

[0010] When a load is connected to the load terminal, the precharge circuit is activated to supply power to the load terminal.

[0011] In some implementations, the voltage range of the power supply terminal is 9 volts to 16 volts.

[0012] In some implementations, the threshold voltage is less than the voltage at the power supply terminal.

[0013] In some implementations, the preset time is less than 100 milliseconds.

[0014] This application also provides a vehicle power distribution box, the vehicle power distribution box including a power supply terminal and any of the above-described components.

[0015] The load circuit of the vehicle power distribution box, wherein the power supply terminal is connected to the load circuit of the vehicle power distribution box, and the voltage range of the power supply terminal is 9 volts to 16 volts.

[0016] This application also provides a control method for a vehicle power distribution box, for the load of the vehicle power distribution box as described above.

[0017] The control method for the vehicle's electrical distribution box includes:

[0018] 5. Obtain a power supply request;

[0019] According to the power supply request, the precharge module is controlled to be turned on to supply power to the load.

[0020] Turn on the voltage monitoring module to obtain the voltage at the load terminal;

[0021] If the voltage at the load terminal is greater than the threshold voltage, the main power output module is turned on based on a timer.

[0022] To supply power to the load terminal;

[0023] 0. After a preset time interval, the pre-charge module is turned off.

[0024] In some embodiments, the control method further includes:

[0025] Get a hibernation request;

[0026] According to the hibernation request, the main power output module is turned off, and the auxiliary power output module is turned on to supply power to the load.

[0027] 5. In some embodiments, the control method further includes:

[0028] Get wake-up request;

[0029] According to the wake-up request, the auxiliary power output module is turned off, and the main power output module is turned on to supply power to the load.

[0030] Additional aspects and advantages of this application 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 this application. Attached Figure Description

[0031] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0032] Figure 1 This is a schematic diagram of a vehicle power distribution box according to an embodiment of this application;

[0033] Figure 2 This is a flowchart illustrating a control method for a vehicle power distribution box according to an embodiment of this application;

[0034] Figure 3 This is a flowchart illustrating another method for controlling a vehicle power distribution box according to an embodiment of this application.

[0035] Figure 4 This is a flowchart illustrating another method for controlling a vehicle power distribution box according to an embodiment of this application.

[0036] Explanation of key component symbols: vehicle power distribution box 1000, load circuit of vehicle power distribution box 100, controller 10, main power output module 20, auxiliary power output module 30, precharge module 40, voltage monitoring module 50, power supply terminal 200, load terminal 300. Detailed Implementation

[0037] The embodiments of this application are described in detail below. Examples of these embodiments are shown 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 are only used to explain this application, and should not be construed as limiting this application.

[0038] In the description of this application, 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," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0042] Please see Figure 1 This application provides a vehicle power distribution box 1000, which includes a load circuit 100 and a power supply terminal 200. The power supply terminal 200 is connected to the load circuit 100 and is used to supply power to the load circuit 100.

[0043] The load circuit 100 of the vehicle power distribution box includes a controller 10, a main power output module 20, an auxiliary power output module 30, a pre-charge module 40, and a voltage monitoring module 50. The controller 10 is connected to the main power output module 20, the auxiliary power output module 30, the pre-charge module 40, and the voltage monitoring module 50, respectively. The main power output module 20 is connected to the power supply terminal 200 and the load terminal 300. The auxiliary power output module 30 is connected to the power supply terminal 200 and the load terminal 300. The pre-charge module 40 is connected to the power supply terminal 200 and the load terminal 300. The voltage monitoring module 50 is connected to the load terminal 300.

[0044] Specifically, the load circuit 100 of the vehicle power distribution box is used for the vehicle power distribution box 1000. The load circuit 100 includes a controller 10, a main power output module 20, an auxiliary power output module 30, a pre-charge module 40, and a voltage monitoring module 50. The controller 10 is used to turn the main power output module 20, the auxiliary power output module 30, the pre-charge module 40, and the voltage monitoring module 50 on or off. The main power output module 20 and the auxiliary power output module 30 are respectively connected to the power supply terminal 200 and the load terminal 300. The voltage range of the power supply terminal 200 is 9 volts to 16 volts. For example, the voltage of the power supply terminal 200 can be 9 volts, 12 volts, 15 volts, etc. In this application, the voltage of the power supply terminal 200 is preferably 12 volts. The main power output module 20 and the auxiliary power output module 30 are used to supply power to the load terminal 300. The precharge module 40 connects to the power supply terminal 200, the load terminal 300, and the controller 10. The controller 10 can control the power supply terminal 200 to supply power to the load terminal 300 by controlling the opening and closing of the main power output module 20, the auxiliary power output module 30, and the precharge module 40. The voltage monitoring module 50 connects to the load terminal 300 and the controller 10. The voltage monitoring module 50 monitors the voltage at the load terminal 300 and generates a voltage signal output to the controller 10. The controller 10 can control the precharge module 40 to shut down based on the voltage signal.

[0045] Furthermore, when the controller 10 does not receive a power supply request, the main power output module 20, auxiliary power output module 30, and pre-charge module 40 are in a closed state, and the power supply terminal 200 cannot supply power to the load terminal 300. When the controller 10 receives a power supply request, the controller 10 controls the pre-charge module 40 to turn on, and the main power output module 20...

[0046] With the auxiliary power output module 30 kept off, the power supply terminal 200 can supply power to the load terminal 300 through the pre-charge module 40. When the pre-charge module 40 supplies power to the load terminal 300, the voltage monitoring module 50 can monitor the voltage at the load terminal 300 in real time.

[0047] When the voltage monitoring module 50 detects that the voltage at the load terminal 300 is greater than the threshold voltage, the voltage monitoring module 50 sends a voltage signal to the controller 10. The controller 10 then turns on the main power output module 20 to supply power to the load terminal 300 and starts timing. After a preset time has elapsed since the main power output module 20 was turned on, the pre-charge module 40 is turned off. The preset time in this application is less than 100 milliseconds.

[0048] The setting for seconds can be adjusted according to the characteristics of the load circuit 100 and load terminal 300 of the vehicle's electrical distribution box; there is no limit to 0 here.

[0049] It should be noted that the threshold voltage is less than the voltage setting of the power supply terminal 200. For example, the voltage of the power supply terminal 200 in this application is 12 volts. The threshold voltage is less than 12 volts. The threshold voltage can be 9 volts, 10 volts, 11 volts, etc. The threshold voltage can be adjusted according to the characteristics of the load circuit 100 and the load terminal 300 of the vehicle power distribution box. It is not limited here.

[0050] In the case of load circuits 100 with multiple vehicle power distribution boxes, the above implementation method can be repeated.

[0051] 5. Furthermore, the controller 10 can also receive a sleep request. When the controller 10 receives a sleep request...

[0052] Under these conditions, the controller 10 can control the main power output module 20 to disconnect and the auxiliary power output module 30 to turn on, so that the power supply terminal 200 supplies power to the load terminal 300 through the auxiliary power output module 30.

[0053] The load circuit 100 of the vehicle power distribution box in this application is configured with a controller 10, a main power output module 20, and an auxiliary power supply module 20.

[0054] The power output module 30, pre-charge module 40, and voltage monitoring module 50 enable the power supply terminal 200 to supply power to the load terminal 300. The pre-charge module 40 first supplies power to the load terminal 300, and the voltage monitoring module 50 monitors the voltage at the load terminal 300 in real time.

[0055] When the voltage at the load terminal 300 reaches the threshold voltage, the controller 10 controls the main power output module 20 to turn on, thus supplying power to the load terminal 300. Upon receiving a sleep request, the controller 10 controls the main power output module 20 to turn off and turns on the auxiliary power output module 30 to supply normal power to the load terminal 300. This avoids the load terminal 300 from being subjected to large current.

[0056] The impact reduced the lifespan of the load terminal 300 and lowered the production cost of the load circuit 100 in the vehicle's electrical distribution box. (See also: 5) Figure 1 In some embodiments, the controller 10 is also configured to control, upon receiving a wake-up request,

[0057] The auxiliary power output module 30 is turned off and the main power output module 20 is turned on to supply power to the load 300.

[0058] Specifically, when the load circuit 100 of the vehicle power distribution box is in a dormant state, the pre-charge module 40 and the main power output module 20 are turned off, and the power supply terminal 200 maintains power supply to the load terminal 300 through the auxiliary power output module 30.

[0059] In sleep mode, controller 10 can also receive wake-up requests. When controller 10 receives a wake-up request, it can control the auxiliary power output module 30 to shut down and turn on the main power output module 20 to supply power to the load.

[0060] powered by.

[0061] Thus, by setting the controller 10 to receive a wake-up request and shut down the auxiliary power output module 30, and turn on the main power output module 20 to supply power to the load 300, the main power output module 20 can directly supply power to the load 300, thereby increasing the power supply speed while avoiding the load 300 from being subjected to a large current surge.

[0062] Please see Figure 1 In some embodiments, the controller 10 is also configured to, upon initial connection to the power supply terminal 200, shut down the main power output module 20 and the auxiliary power output module 30, and query whether the load terminal 300 is connected to a load, and, if the load terminal 300 is connected to a load, open the precharge circuit to supply power to the load terminal 300.

[0063] Specifically, when the load circuit 100 of the vehicle's electrical distribution box is initially connected to the power supply terminal 200, both the main power output module 20 and the auxiliary power output module 30 are in the off state. The controller 10 checks whether the load terminal 300 of the current load circuit 100 of the vehicle's electrical distribution box is connected to a load, which can be an electrical appliance of the vehicle. If there is a load at the load terminal 300 of the load circuit 100 of the vehicle's electrical distribution box, the controller 10 controls the pre-charge module 40 to turn on, and the power supply terminal 200 supplies power to the load terminal 300 through the pre-charge module 40. If there is no load at the load terminal 300 of the load circuit 100 of the vehicle's electrical distribution box, the pre-charge module 40 remains in the off state, waiting for the load terminal 300 to connect to a load.

[0064] Thus, when the load circuit 100 of the vehicle power distribution box is initially connected to the power supply terminal 200, the controller 10 can be set to query whether the load terminal 300 is connected to the load, and the opening and closing of the precharge module 40 can be controlled to select whether to supply power to the load terminal 300.

[0065] Please see Figure 2 This application also provides a control method for a vehicle electrical distribution box, used in the load circuit 100 of the vehicle electrical distribution box. The control method for the vehicle electrical distribution box includes:

[0066] S10: Request power supply;

[0067] S20: Control the precharge module 40 to turn on according to the power supply request to supply power to the load end 300;

[0068] S30: Turn on the voltage monitoring module 50 to obtain the voltage at the load terminal 300;

[0069] S40: When the voltage at the load terminal 300 is greater than the threshold voltage, time and control the main power output module 20 to turn on to supply power to the load terminal 300.

[0070] S50: After a preset time interval, the precharge module 40 is turned off.

[0071] Specifically, when the controller 10 receives a power supply request, it controls the pre-charge module 40 to turn on, while the main power output module 20 and the auxiliary power output module 30 remain off. The power supply terminal 200 can supply power to the load terminal 300 through the pre-charge module 40. While the pre-charge module 40 is supplying power to the load terminal 300, the voltage monitoring module 50 can monitor the voltage of the load terminal 300 in real time. When the voltage monitoring module 50 detects that the voltage of the load terminal 300 is greater than the threshold voltage, the voltage monitoring module 50 sends a voltage signal to the controller 10. The controller 10 then turns on the main power output module 20 to supply power to the load terminal 300 and starts timing. After a preset time has elapsed since the main power output module 20 was turned on, the pre-charge module 40 is turned off.

[0072] The control method of this application, by setting up a controller 10, a main power output module 20, an auxiliary power output module 30, a pre-charge module 40, and a voltage monitoring module 50, enables the power supply terminal 200 to supply power to the load terminal 300. The pre-charge module 40 first supplies power to the load terminal 300, and the voltage monitoring module 50 monitors the voltage of the load terminal 300 in real time. When the voltage of the load terminal 300 reaches the threshold voltage, the controller 10 controls the main power output module 20 to turn on, thus completing the power supply to the load terminal 300. In this way, the load terminal 300 is avoided from being subjected to large current surges, the service life of the load terminal 300 is improved, and the production cost of the load circuit 100 of the vehicle power distribution box is reduced.

[0073] Please see Figure 3 In some embodiments, the control method for the vehicle's electrical distribution box further includes:

[0074] S60: Request a hibernation request;

[0075] S70: Based on the hibernation request, control the main power output module 20 to shut down and the auxiliary power output module 30 to power the load 300.

[0076] Specifically, the controller 10 can also receive a sleep request. When the controller 10 receives a sleep request, the controller 10 can control the main power output module 20 to disconnect and the auxiliary power output module 30 to turn on, so that the power supply terminal 200 supplies power to the load terminal 300 through the auxiliary power output module 30.

[0077] Thus, upon receiving a hibernation request, the main power output module 20 is turned off, and the auxiliary power output module 30 is turned on to supply normal power to the load 300, thereby forming a constant power output circuit.

[0078] Please see Figure 4 In some embodiments, the control method for the vehicle's electrical distribution box further includes:

[0079] S80: Obtain wake-up request;

[0080] S90: Based on the wake-up request, control the auxiliary power output module 30 to shut down and the main power output module 20 to power the load 300.

[0081] Specifically, when the load circuit 100 of the vehicle's power distribution box is in a dormant state, the pre-charge module 40 and the main power output module 20 are turned off, and the power supply terminal 200 maintains power supply to the load terminal 300 through the auxiliary power output module 30. In the dormant state, the controller 10 can also be used to receive wake-up requests. When the controller 10 receives a wake-up request, it can control the auxiliary power output module 30 to turn off and turn on the main power output module 20 to supply power to the load.

[0082] Thus, by setting the controller 10 to receive a wake-up request and shut down the auxiliary power output module 30, and turn on the main power output module 20 to supply power to the load 300, the main power output module 20 can directly supply power to the load 300, thereby increasing the power supply speed while avoiding the load 300 from being subjected to a large current surge.

[0083] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with the described embodiment or example, which are included in at least one embodiment or example of this application. 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.

[0084] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A load circuit of a vehicle distribution box, characterized by, The device includes a controller, a main power output module, an auxiliary power output module, a pre-charge module, and a voltage monitoring module. The controller is connected to the main power output module, the auxiliary power output module, the pre-charge module, and the voltage monitoring module. The main power output module is connected to the power supply terminal and the load terminal. The auxiliary power output module is connected to the power supply terminal and the load terminal. The pre-charge module is connected to the power supply terminal and the load terminal. The voltage monitoring module is connected to the load terminal. The controller is used to control the pre-charge module to supply power to the load when a power supply request is received, and to turn on the main power output module to supply power to the load when the voltage monitoring module detects that the voltage of the load is greater than the threshold voltage, and to turn off the pre-charge module after a preset time. The controller is also configured to, upon receiving a hibernation request, shut down the main power output module and turn on the auxiliary power output module to supply power to the load. The controller is also used to, upon receiving a wake-up request, control the auxiliary power output module to shut down and the main power output module to turn on to supply power to the load. The voltage range of the power supply terminal is 9 volts to 16 volts.

2. The load circuit of a vehicle distribution box according to claim 1, characterized in that, The controller is also configured to, upon initial connection to the power supply terminal, shut down the main power output module and the auxiliary power output module, query whether the load terminal is connected to a load, and, if the load terminal is connected to a load, activate the pre-charge circuit to supply power to the load terminal.

3. The load circuit of a vehicle distribution box according to claim 1, characterized in that, The threshold voltage is less than the voltage at the power supply terminal.

4. The load circuit of the vehicle distribution box according to claim 1, characterized by, The preset time is less than 100 milliseconds.

5. A vehicle distribution box, characterized by It includes a power supply terminal and a load circuit of the vehicle power distribution box as described in any one of claims 1-4, wherein the power supply terminal is connected to the load circuit of the vehicle power distribution box, and the voltage range of the power supply terminal is 9 volts to 16 volts.

6. A control method of a vehicle distribution box, characterized by, For the load circuit of the vehicle power distribution box as described in any one of claims 1-4, the control method of the vehicle power distribution box includes: Request power supply; According to the power supply request, the precharge module is controlled to be turned on to supply power to the load. Turn on the voltage monitoring module to obtain the voltage at the load terminal; If the voltage at the load terminal is greater than the threshold voltage, the main power output module is turned on to supply power to the load terminal, based on timing. The pre-charge module is turned off after a preset time interval.

7. The control method of the vehicle distribution box according to claim 6, characterized by, The control method for the vehicle power distribution box also includes: Get a hibernation request; According to the hibernation request, the main power output module is turned off, and the auxiliary power output module is turned on to supply power to the load.

8. The control method of the vehicle distribution box according to claim 7, characterized by, The control method for the vehicle power distribution box also includes: Get wake-up request; According to the wake-up request, the auxiliary power output module is turned off, and the main power output module is turned on to supply power to the load.

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