A power supply system and a vehicle

Abstract

The application provides a power supply system and a vehicle, and relates to the technical field of vehicle power supply. Since the power supply system comprises a second area controller and a plurality of first area controllers, each first area controller is connected with a first power supply and an electric device of the vehicle, the second area controller is connected with the first area controllers corresponding to the second area controller, the second area controller is connected with the electric device of the vehicle, and at least one first area controller is connected with a second power supply. Therefore, in the case of abnormality of the first power supply, the second power supply is used to supply power to the first area controllers connected with the second power supply, and then the first area controllers connected with the second power supply are used to supply power to the electric device of the vehicle connected with the first area controllers and the second area controller, and the second area controller is used to supply power to the electric device connected with the second area controller, so that the power failure of all electric devices of the vehicle caused by the abnormality of the first power supply is avoided, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle power supply technology, and more particularly to a power supply system and a vehicle. Background Technology

[0002] Due to reasons such as vehicle collisions, some components and lines in the vehicle's power supply system are damaged, causing the entire power supply system to fail. This results in all electrical components in the vehicle losing power and becoming unusable, affecting the user experience. Utility Model Content

[0003] This application provides a power supply system and a vehicle to solve the problem in the related art where damage to some components and lines in the vehicle's power supply system leads to the failure of the entire power supply system, causing all electrical components in the vehicle to lose power and fail, thus affecting the user experience.

[0004] In a first aspect, embodiments of this application provide a power supply system, including a second area controller and a plurality of first area controllers;

[0005] Each of the first area controllers is used to connect to the first power source and the electrical devices of the vehicle, respectively, and at least one of the first area controllers is also used to connect to the second power source.

[0006] The second area controller is connected to the first area controller corresponding to the second area controller, and the second area controller is used to connect to the electrical components of the vehicle.

[0007] Optionally, the first area controller connected to the second power supply includes a first switching device; in the first area controller connected to the second power supply, the first switching device is connected to the electrical devices of the vehicle and the main power supply line respectively; wherein, the main power supply line is connected to the first power supply, and the first switching device is configured to be turned on when the main power supply line is normal, and / or to be turned off when the main power supply line is abnormal.

[0008] Optionally, the first area controller includes at least one second switching device; the second switching device is connected to the electrical devices of the vehicle and the main power supply line respectively; wherein, the main power supply line is connected to the first power source, and in the first area controller connected to the second power source, the second switching device is also connected to the second power source; when the second switching device is turned on, the electrical devices connected to the second switching device are energized, and / or when the second switching device is turned off, the electrical devices connected to the second switching device are de-energized.

[0009] Optionally, the first area controller further includes a first control unit; the first control unit is connected to the second switching device, and the first control unit is configured to control the on and off of the second switching device.

[0010] Optionally, the first area controller corresponding to the second area controller is further configured to control the connection and disconnection between the second area controller and the main power supply line.

[0011] Optionally, the second area controller is also configured to connect to a third power source and to disconnect the first area controller connected to the second area controller in the event of an malfunction of the first area controller connected to the second area controller, and to use the third power source to supply power to the electrical devices connected to the second area controller.

[0012] Optionally, the second area controller is further configured to control the connection and disconnection between the first area controller corresponding to the second area controller and the third power supply; wherein, when the first area controller corresponding to the second area controller is connected to the third power supply, the third power supply is connected to the main power supply line.

[0013] Optionally, the second area controller includes a third switching device, which is connected to the vehicle's electrical components and a first area controller corresponding to the second area controller. The third switching device is configured to be turned on when the first area controller corresponding to the second area controller is functioning normally, and / or to be turned off when the first area controller corresponding to the second area controller is malfunctioning. Alternatively, the first area controller corresponding to the second area controller includes a fifth switching device, which is connected to the vehicle's electrical components, the second area controller, and the main power supply line. The fifth switching device is configured to be turned on when the second area controller is functioning normally, and / or to be turned off when the second area controller is malfunctioning.

[0014] Optionally, the second area controller further includes at least one fourth switching device; the fourth switching device is connected to the electrical devices of the vehicle and the third switching device respectively; the third switching device is connected to the first area controller corresponding to the second area controller.

[0015] Optionally, when both the third and fourth switching devices are turned on, the electrical device connected to the fourth switching device is energized; when either the third or fourth switching device is turned off, the electrical device connected to the fourth switching device is de-energized.

[0016] Optionally, the second area controller further includes a second control unit; the second control unit is connected to the fourth switching device, and the second control unit is used to control the on and off of the fourth switching device.

[0017] Optionally, the first area controller corresponding to the second area controller is further configured to disconnect from the second area controller in the event of an anomaly in the second area controller.

[0018] Optionally, the second area controller and each of the first area controllers are located in different areas of the vehicle; the first area controller is connected to the electrical devices in the area where the first area controller is located; the second area controller is connected to the electrical devices in the area where the second area controller is located.

[0019] Secondly, embodiments of this application also provide a vehicle including the power supply system described in the first aspect.

[0020] In summary, in this embodiment, since the power supply system includes a second area controller and multiple first area controllers, each of which is connected to a first power source and the vehicle's electrical components, and the second area controller is connected to the corresponding first area controller and the vehicle's electrical components, power can be supplied to the vehicle's electrical components. Furthermore, since at least one first area controller is connected to the second power source, if some components and lines in the power supply system fail, causing an abnormal power supply from the first power source, power can be supplied to the first area controller connected to the second power source through the second power source. This, in turn, supplies power to the vehicle's electrical components and the second area controller connected to the first area controller through the second power source, and then to the electrical components connected to the second area controller through the second area controller. This avoids the first power source failing due to an abnormal power supply, leading to a power outage and failure of all vehicle electrical components, thus improving the user experience.

[0021] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0023] Figure 1 This is a schematic diagram of a power supply system provided in an embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the specific structure of a first area controller provided in an embodiment of this application;

[0025] Figure 3 This is a schematic diagram of a power supply system provided in an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of another power supply system provided in an embodiment of this application;

[0027] Figure 5 A schematic diagram of the layout of a power supply system provided in an embodiment of this application;

[0028] Figure 6 This is a schematic diagram of another power supply system layout provided in an embodiment of this application;

[0029] Figure 7 This is a schematic diagram of another power supply system provided in an embodiment of this application;

[0030] Figure 8 This is a schematic diagram of the layout of another power supply system provided in an embodiment of this application;

[0031] Figure 9 This is a flowchart of a power supply method provided in an embodiment of this application.

[0032] Figure label:

[0033] 10-First area controller; 11-First control unit; 20-Electrical device; 30-Main power supply line; 31-Branch device; 40-First power supply; 50-Second power supply; 60-Second area controller; 61-Second control unit; 70-Third power supply; 80-Vehicle; 90-Fourth power supply; K1-First switching device; K2-Second switching device; K3-Third switching device; K4-Fourth switching device; K5-Fifth switching device. Detailed Implementation

[0034] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0036] Reference Figure 1 This application provides a power supply system including a second area controller 60 and a plurality of first area controllers 10; each first area controller 10 is used to connect to a first power supply 40 and an electrical device 20 of the vehicle, respectively, and at least one first area controller 10 is also used to connect to a second power supply 50; the second area controller 60 is connected to the first area controller 10 corresponding to the second area controller 60, and the second area controller 60 is used to connect to the electrical device 20 of the vehicle.

[0037] In this embodiment, the power supply system includes a second area controller 60 and multiple first area controllers 10. Each first area controller 10 is connected to the first power supply 40 and the vehicle's electrical components 20, respectively. The second area controller 60 is connected to the corresponding first area controller 10 and to the vehicle's electrical components 20, thus enabling power supply to the vehicle's electrical components 20. Since at least one first area controller 10 is connected to the second power supply 50, if some components and lines in the power supply system are damaged, causing an abnormal power supply from the first power supply 40, the second power supply 50 can supply power to the first area controller 10 connected to the second power supply 50. This, in turn, allows the first area controller 10 connected to the second power supply 50 to supply power to the vehicle's electrical components 20 and the second area controller 60 connected to the first area controller 10. Furthermore, the second area controller 60 supplies power to the electrical components 20 connected to the second area controller 60. This avoids the first power supply 40's abnormal power supply causing a power outage and failure of all vehicle electrical components in the event of damage to some components and lines in the power supply system, thereby improving the user experience.

[0038] In some embodiments, the power supply system includes a plurality of first area controllers 10, each first area controller 10 corresponding to at least one electrical device 20 of the vehicle 80; the first area controller 10 is configured to connect to the main power supply line 30 and each electrical device 20 corresponding to the first area controller 10, and to control each electrical device 20 corresponding to the first area controller 10 to be energized; the main power supply line 30 is connected to a first power source 40; wherein, at least one first area controller 10 is further configured to connect to a second power source 50, and the first area controller 10 connected to the second power source 50 is further configured to disconnect from the main power supply line 30 in the event of an abnormality, and use the second power source 50 to supply power to the electrical device 20 corresponding to the first area controller 10 connected to the second power source 50.

[0039] In some embodiments, the first area controller 10 is specifically used to control the first power supply 40 to supply power to the electrical device 20 corresponding to the first area controller 10.

[0040] In some embodiments, the first area controller 10 is further configured to control the power-consuming device 20 corresponding to the first area controller 10 to disconnect from power.

[0041] In some embodiments, the first area controller 10 connected to the second power supply 50 is also used to connect to the main power supply line 30 when the main power supply line 30 is normal, and use the first power supply 40 to supply power to the electrical device 20 corresponding to the first area controller 10 connected to the second power supply 50.

[0042] In some embodiments, the first area controller 10 connected to the second power supply 50 is also used to charge the second power supply 50 using the first power supply 40 when the main power supply line 30 is normal.

[0043] In some embodiments, an abnormality in the main power supply line 30 indicates that the main power supply line 30 is damaged or that other first area controllers 10 connected to the main power supply line 30 are abnormal or damaged. An abnormality in the main power supply line 30 includes overvoltage, short circuit and overcurrent, etc.; overvoltage means that the voltage is greater than the safe voltage threshold, and overcurrent means that the current is greater than the safe current threshold.

[0044] In some embodiments, the first power source 40 may be a DC-DC converter (DCDC), which is connected to the battery pack of the vehicle 80.

[0045] In some embodiments, the second power source 50 may be a battery.

[0046] In some embodiments, the second power supplies 50 connected to different first area controllers 10 are different power supplies, or at least a portion of the second power supplies 50 connected to the first area controllers 10 are the same power supply.

[0047] In some embodiments, the main power supply line 30 is provided with at least one branching device 31, and the first area controller 10 is connected to the main power supply line 30 through the branching device 31; the branching device 31 is used to divide one line into multiple lines.

[0048] In some embodiments, the main power supply line 30 may be made of copper wire, copper busbar, or aluminum busbar.

[0049] In some embodiments, the electrical device 20 of the vehicle 80 is a low-voltage electrical device, for example, the electrical device 20 of the vehicle 80 is a 48-volt low-voltage electrical device.

[0050] In some embodiments, the electrical components 20 of the vehicle 80 include an integrated power brake (IPB), an electric power steering (EPS), an advanced driver assistance system (ADAS), windshield wipers, air conditioning, engine-related loads, a motor controller, headlights, safety system-related loads, door locks, etc.

[0051] In this embodiment, since the first area controller 10 is connected to the main power supply line 30 and each electrical device 20 corresponding to the first area controller 10, and the main power supply line 30 is connected to the first power source 40, the first area controller 10 controls the power supply of each electrical device 20 corresponding to the first area controller 10, thereby enabling the power supply of the electrical devices 20 of the vehicle 80. Since at least one first area controller 10 is connected to the second power source 50, if the main power supply line 30 is abnormal, it indicates that the main power supply line 30 or other first area controllers 10 connected to the main power supply line 30 are abnormal. The first area controllers 10 connected to the second power source 50 are disconnected from the main power supply line 30, and the second power source 50 is used to supply power to the electrical devices 20 corresponding to the first area controllers 10 connected to the second power source 50. This avoids the power supply line 30 or other first area controllers 10 connected to the main power supply line 30 being abnormal, which would cause the electrical devices 20 corresponding to the first area controllers 10 connected to the second power source 50 to lose power, thereby improving the user experience.

[0052] Optionally, in some embodiments, the first area controller 10 connected to the second power supply 50 includes a first switching device K1; in the first area controller 10 connected to the second power supply 50, the first switching device K1 is connected to the power-consuming device 20 corresponding to the first area controller 10 connected to the second power supply 50, and the first switching device K1 is also connected to the main power supply line 30.

[0053] In this embodiment of the application, the first switching device K1 controls the connection and disconnection of the power-consuming device 20 corresponding to the first area controller 10 connected to the second power supply 50 and the main power supply line 30.

[0054] Optionally, in some embodiments, the first switching device K1 is used to turn on when the main power supply line 30 is normal and to turn off when the main power supply line 30 is abnormal.

[0055] In some embodiments, the first switching device K1 is a smart switching device. The first switching device K1 can collect the status of the main power supply line 30, and turn on when the main power supply line 30 is in a normal state, and turn off when the main power supply line 30 is in an abnormal state. Abnormal status of the main power supply line 30 includes overvoltage, short circuit and overcurrent, etc.

[0056] In this embodiment, the first switching device K1 is turned on when the main power supply line 30 is normal, so as to keep the first power supply 40 supplying power to the electrical device 20; and is turned off when the main power supply line 30 is abnormal, so as to avoid the electrical device 20 corresponding to the first area controller 10 connected to the second power supply 50 being de-energized due to the abnormality of the main power supply line 30 or other first area controllers 10 connected to the main power supply line 30.

[0057] Optionally, in some embodiments, the first area controller 10 includes at least one second switching device K2; in the first area controller 10, the second switching device K2 corresponds to the power consumption device 20 corresponding to the first area controller 10; the second switching device K2 is connected to the power consumption device 20 corresponding to the second switching device K2 and the main power supply line 30 respectively; wherein, in the first area controller 10 connected to the second power supply 50, the second switching device K2 is also connected to the second power supply 50.

[0058] In some embodiments, the second switching device K2 may be a MOS transistor (Metal-Oxide-Semiconductor Field-Effect Transistor), a triode, a relay, or other types of switching devices.

[0059] In this embodiment of the application, the second switching device K2 controls the on / off state of the electrical device 20 and the main power supply line 30 corresponding to the second switching device K2; in the first area controller 10 connected to the second power supply 50, the second switching device K2 also controls the on / off state of the electrical device 20 and the second power supply 50 corresponding to the second switching device K2.

[0060] Optionally, in some embodiments, when the second switching device K2 is turned on, the electrical device 20 corresponding to the second switching device K2 is energized; when the second switching device K2 is turned off, the electrical device 20 corresponding to the second switching device K2 is de-energized.

[0061] In this embodiment of the application, the power supply control of the electrical device 20 corresponding to the second switch device K2 is achieved by energizing the electrical device 20 when the second switch device K2 is turned on and de-energizing the electrical device 20 corresponding to the second switch device K2 when the second switch device K2 is turned off.

[0062] Optionally, in some embodiments, the first area controller 10 further includes a first control unit 11; the first control unit 11 is connected to the second switching device K2, and the first control unit 11 is used to control the on and off of the second switching device K2.

[0063] In some embodiments, the first control unit 11 may be a microcontroller unit (MCU), a single-chip microcomputer, or other types of chips.

[0064] In this embodiment of the application, the first control unit 11 controls the conduction and disconnection of the second switching device K2, thereby realizing the power supply control of the electrical device 20 corresponding to the second switching device K2.

[0065] Reference Figure 2In some embodiments, the first end of the first switching device K1 is connected to the main power supply line 30, the second end of the first switching device K1 is connected to the second power supply 50 and the first end of each second switching device K2, and the second end of the second switching device K2 is connected to the power supply end of the power-consuming device 20 corresponding to the second switching device K2; the control end of the second switching device K2 is connected to one output end of the first control unit 11; wherein, when the first switching device K1 is turned on, the first power supply 40 charges the second power supply 50; when the first switching device K1 is turned on and the second switching device K2 is turned on, the first power supply 40 supplies power to the power-consuming device 20 corresponding to the second switching device K2; when the first switching device K1 is turned off or the second switching device K2 is turned on, the second power supply 50 supplies power to the power-consuming device 20 corresponding to the second switching device K2; when the first switching device K1 is turned off and the second switching device K2 is turned off, the power-consuming device 20 corresponding to the second switching device K2 is de-energized.

[0066] Optionally, in some embodiments, the power supply system further includes a second area controller 60; the second area controller 60 corresponds to at least one electrical device 20 of the vehicle 80; the second area controller 60 corresponds to the first area controller 10; the second area controller 60 is connected to the first area controller 10 corresponding to the second area controller 60, and the second area controller 60 is used to connect to each of the electrical devices 20 corresponding to the second area controller 60, and control each of the electrical devices 20 corresponding to the second area controller 60 to be energized when the second area controller 60 is energized.

[0067] In some embodiments, at least one first area controller 10 has a corresponding second area controller 60.

[0068] In this embodiment of the application, when the second area controller 60 is powered on, it controls each electrical device 20 corresponding to the second area controller 60 to be powered on, thereby realizing that each electrical device 20 corresponding to the second area controller 60 is powered on.

[0069] Optionally, in some embodiments, the first area controller 10 corresponding to the second area controller 60 is also used to control the connection and disconnection between the second area controller 60 and the main power supply line 30.

[0070] In some embodiments, the first area controller 10 corresponding to the second area controller 60 is specifically used to control the first power supply 40 to supply power to the second area controller 60, and then control each electrical device 20 corresponding to the second area controller 60 to be powered on through the second area controller 60, that is, the first power supply 40 supplies power to each electrical device 20 corresponding to the second area controller 60.

[0071] In this embodiment of the application, the second area controller 60 is controlled by the first area controller 10 corresponding to the second area controller 60 to control the connection and disconnection between the second area controller 60 and the main power supply line 30, thereby realizing the power supply control of the second area controller 60.

[0072] Optionally, in some embodiments, the second area controller 60 is also used to connect to a third power supply 70.

[0073] In some embodiments, the third power source 70 may be a DC-DC converter connected to the battery pack of the vehicle 80; in other embodiments, the third power source 70 may be a battery.

[0074] In this embodiment, the third power supply 70 and the first power supply 40 are redundant power supplies for each electrical device 20 corresponding to the second area controller 60, and the third power supply 70 can supply power to each electrical device 20 corresponding to the second area controller 60.

[0075] Optionally, in some embodiments, the second area controller 60 is further configured to disconnect the first area controller 10 connected to the second area controller 60 in the event of an abnormality, and use the third power supply 70 to supply power to the electrical device 20 corresponding to the second area controller 60.

[0076] In some embodiments, if the first area controller 10 connected to the second area controller 60 is abnormal, it indicates that the first area controller 10 is damaged or that the main power supply line 30 connected to the first area controller 10 is abnormal. The abnormality of the first area controller 10 connected to the second area controller 60 may include overvoltage, short circuit and overcurrent in the first area controller 10 connected to the second area controller 60.

[0077] In this embodiment, if the first area controller 10 connected to the second area controller 60 is malfunctioning, it indicates that the first area controller 10 is damaged or the main power supply line 30 connected to the first area controller 10 is malfunctioning. The second area controller 60 is disconnected from the first area controller 10, and the third power supply 70 is used to supply power to the electrical device 20 corresponding to the second area controller 60. This avoids damage to the first area controller 10 or power outages to the electrical device 20 corresponding to the second area controller 60 due to malfunctions in the main power supply line 30 connected to the first area controller 10, thereby improving the user experience.

[0078] Optionally, in some embodiments, the second area controller 60 includes a third switching device K3; in the second area controller 60, the third switching device K3 is connected to the electrical device 20 corresponding to the second area controller 60, and the third switching device K3 is also connected to the first area controller 10 corresponding to the second area controller 60.

[0079] In this embodiment of the application, the third switching device K3 controls the connection and disconnection between the electrical device 20 corresponding to the second area controller 60 and the first area controller 10.

[0080] Optionally, in some embodiments, the third switching device K3 is used to turn on when the first area controller 10 corresponding to the second area controller 60 is normal, and to turn off when the first area controller 10 corresponding to the second area controller 60 is abnormal.

[0081] In some embodiments, the third switching device K3 is a smart switching device. The third switching device K3 can collect the state of the first area controller 10 corresponding to the second area controller 60. It is turned on when the state of the first area controller 10 corresponding to the second area controller 60 is normal, and turned off when the state of the first area controller 10 corresponding to the second area controller 60 is abnormal. Abnormal state of the first area controller 10 corresponding to the second area controller 60 includes overvoltage, short circuit and overcurrent, etc.

[0082] In this embodiment, the third switching device K3 is turned on when the first area controller 10 corresponding to the second area controller 60 is functioning normally, so that the first power supply 40 supplies power to the electrical device 20 corresponding to the second area controller 60; the third switching device K3 is turned off when the first area controller 10 corresponding to the second area controller 60 is malfunctioning, thereby preventing damage to the first area controller 10, or the power supply main line 30 connected to the first area controller 10 from malfunctioning and causing the electrical device 20 corresponding to the second area controller 60 to lose power, thereby improving the user experience.

[0083] Optionally, in some embodiments, the second area controller 60 is further configured to control the connection and disconnection between the first area controller 10 corresponding to the second area controller 60 and the third power supply 70; wherein, when the first area controller 10 corresponding to the second area controller 60 is connected to the third power supply 70, the third power supply 70 is connected to the main power supply line 30.

[0084] In this embodiment, the second area controller 60 controls the connection and disconnection between the first area controller 10 corresponding to the second area controller 60 and the third power supply 70, so as to realize the power supply control of the third power supply 70 for the first area controller 10 corresponding to the second area controller 60. When the first area controller 10 corresponding to the second area controller 60 is connected to the third power supply 70, the third power supply 70 is connected to the main power supply line 30, thereby realizing that the third power supply 70 supplies power to each first area controller 10 connected to the main power supply line 30.

[0085] Optionally, in some embodiments, the second area controller 60 further includes at least one fourth switching device K4; the fourth switching device K4 is connected to the vehicle's electrical device 20 and the third switching device K3 respectively; the third switching device K3 is connected to the first area controller 10 corresponding to the second area controller 60.

[0086] In some embodiments, the fourth switching device K4 may be a MOSFET, a transistor, a relay, or other types of switching devices.

[0087] In this embodiment, the power-consuming device 20 corresponding to the fourth switching device K4 and the first area controller 10 corresponding to the second area controller 60 are controlled by the fourth switching device K4.

[0088] Optionally, in some embodiments, when both the third switch device K3 and the fourth switch device K4 are turned on, the electrical device 20 connected to the fourth switch device K4 is energized; when either the third switch device K3 or the fourth switch device K4 is turned off, the electrical device 20 connected to the fourth switch device K4 is de-energized.

[0089] In this embodiment, the power supply control of the electrical device 20 corresponding to the fourth switch device K4 is achieved by energizing the device 20 when both the third switch device K3 and the fourth switch device K4 are turned on, and de-energizing the device 20 when either the third switch device K3 or the fourth switch device K4 is turned off.

[0090] Optionally, in some embodiments, the second area controller 60 further includes a second control unit 61; the second control unit 61 is connected to the fourth switching device K4, and the second control unit 61 is used to control the on and off of the fourth switching device K4.

[0091] In some embodiments, the second control unit 61 may be a microcontroller, a single-chip microcomputer, or other types of chips.

[0092] In this embodiment of the application, the power supply control of the electrical device 20 corresponding to the fourth switching device K4 is realized by controlling the conduction and disconnection of the fourth switching device K4 through the second control unit 61.

[0093] Optionally, in some embodiments, the first area controller 10 corresponding to the second area controller 60 is further configured to disconnect from the second area controller 60 in the event of an abnormality in the second area controller 60.

[0094] In some embodiments, the abnormality of the second area controller 60 includes overvoltage, short circuit and overcurrent of the second area controller 60.

[0095] In this embodiment of the application, in the event of an abnormality in the second area controller 60, the first area controller 10 corresponding to the second area controller 60 is disconnected from the second area controller 60, thereby isolating the abnormal second area controller 60 and preventing the abnormality of the second area controller 60 from causing the power-consuming device 20 corresponding to the first area controller 10 to lose power.

[0096] Optionally, in some embodiments, the first area controller 10 corresponding to the second area controller 60 includes a fifth switching device K5; in the first area controller 10 corresponding to the second area controller 60, the fifth switching device K5 is connected to the power-consuming device 20 of the first area controller 10 corresponding to the second area controller 60, and the fifth switching device K5 is also connected to the second area controller 60 and the main power supply line 30 respectively.

[0097] In this embodiment of the application, the fifth switching device K5 controls the on / off of the electrical components 20 of the second area controller 60 and the corresponding first area controller 10. The fifth switching device K5 can also control the on / off of the second area controller 60 and the main power supply line 30.

[0098] Optionally, in some embodiments, the fifth switching device K5 is used to turn on when the second area controller 60 is normal and to turn off when the second area controller 60 is abnormal.

[0099] In some embodiments, the fifth switching device K5 is an intelligent switching device. The fifth switching device K5 can collect the state of the second area controller 60, turn on when the state of the second area controller 60 is normal, and turn off when the state of the second area controller 60 is abnormal.

[0100] In this embodiment, the fifth switching device K5 is turned on when the second area controller 60 is normal, so that the first power supply 40 supplies power to the electrical device 20 corresponding to the second area controller 60. The fifth switching device K5 is turned off when the second area controller 60 is abnormal, thereby isolating the abnormal second area controller 60 and preventing the electrical device 20 corresponding to the first area controller 10 from being de-energized due to the abnormality of the second area controller 60.

[0101] Reference Figure 3 In some embodiments, the first terminal of the first switching device K1 is connected to the main power supply line 30, the second terminal of the first switching device K1 is connected to the second power supply 50 and the first terminal of each second switching device K2, and the second terminal of the second switching device K2 is connected to the power supply terminal of the power-consuming device 20 corresponding to the second switching device K2; the second terminal of the first switching device K1 is also connected to the first terminal of the fifth switching device K5, the second terminal of the fifth switching device K5 is connected to the first terminal of the third switching device K3, the second terminal of the third switching device K3 is connected to the third power supply 70 and the first terminal of each fourth switching device K4, and the second terminal of the fourth switching device K4 is connected to the power supply terminal of the power-consuming device 20 corresponding to the fourth switching device K4; the control terminal of the fourth switching device K4 is connected to one output terminal of the second control unit 61.

[0102] Specifically, when the first switching device K1 is on, the first power supply 40 charges the second power supply 50; when both the first switching device K1 and the second switching device K2 are on, the first power supply 40 supplies power to the device 20 corresponding to the second switching device K2; when either the first switching device K1 is off or the second switching device K2 is on, the second power supply 50 supplies power to the device 20 corresponding to the second switching device K2; when both the first switching device K1 and the second switching device K2 are off, the device 20 corresponding to the second switching device K2 is de-energized; when the first switching device K1 is on, the fifth switching device K5 is on, and the third switching device K3 is on, the first power supply 40 charges the third power supply 70; when the first switching device K1 is on, the fifth switching device K5 is on, the third switching device K3 is on, and the fourth switching device K4 is on, the first power supply 40 supplies power to the device 20 corresponding to the fourth switching device K4.

[0103] Optionally, in some embodiments, the second area controller 60 and each of the first area controllers 10 are located in different areas of the vehicle 80; the first area controller 10 is connected to the electrical device 20 in the area where the first area controller 10 is located; and the second area controller 60 is connected to the electrical device 20 in the area where the second area controller 60 is located.

[0104] In this embodiment, by placing the second area controller 60 and each first area controller 10 in different areas of the vehicle 80, compared to placing the second area controller 60 and each first area controller 10 in the same area of ​​the vehicle 80, the possibility of damage to the second area controller 60 and each first area controller 10 due to a collision with the vehicle 80 is reduced. Since the first area controller 10 is connected to the electrical components 20 in its area, and the second area controller 60 is connected to the electrical components 20 in its area, local power supply is achieved.

[0105] To reduce the length of the power supply harness.

[0106] Reference Figure 4 In some embodiments, the power supply system includes three first area controllers 10 and one second area controller 60. A first power supply 40 is connected to each first area controller 10 via a main power supply line 30. The first first area controller 10 is connected to the first second power supply 50 and the second area controller 60. The second first area controller 10 is connected to the second second power supply 50. The third first area controller 10 is connected to the third second power supply 50. The second area controller 60 is connected to the third power supply 70.

[0107] Reference Figure 5 In some embodiments, the power supply system includes two first area controllers 10 and one second area controller 60. A first power supply 40 is connected to a branching device 31, which is connected to both the main power supply line 30 and the first first area controller 10. The main power supply line 30 is connected to the second first area controller 10, which is connected to both the second power supply 50 and the third switching device K3 in the second area controller 60. The second area controller 60 is connected to the third power supply 70. The first first area controller 10 is located in the rear area of ​​the vehicle 80, the second first area controller 10 is located in the right front area of ​​the vehicle 80, and the second area controller 60 is located in the left front area of ​​the vehicle 80. The first power supply 40 is a DC-DC converter, and the second power supply 50 and the third power supply 70 are both batteries.

[0108] In some embodiments, the electrical components 20 in the rear area of ​​the vehicle 80 include a rear EPS, a rear motor controller, and a rear combination light, etc., and a first area controller 10 is connected to the rear EPS, rear motor controller, and rear combination light in the rear area, respectively; the electrical components 20 in the right front area of ​​the vehicle 80 include an intelligent integrated braking system, a front electric power steering system, and an advanced driver assistance system, etc., and a second area controller 10 is connected to the intelligent integrated braking system, front electric power steering system, and advanced driver assistance system in the right area, respectively; the electrical components 20 in the left front area of ​​the vehicle 80 include an electric power steering system, safety system-related loads, and door lock devices, etc., and a second area controller 60 is connected to the front electric power steering system, safety system-related loads, and door lock devices in the left area, respectively.

[0109] Reference Figure 6 In some embodiments, the power supply system includes three first area controllers 10 and one second area controller 60. A first power supply 40 is connected to a first branching device 31, which is connected to both the main power supply line 30 and the first first area controller 10. The main power supply line 30 is connected to a second branching device 31, which is connected to both the second and third first area controllers 10. The second first area controller 10 is connected to a second power supply 50. The third first area controller 60... The fifth switching device K5 is connected to the second area controller 60, and the second area controller 60 is connected to the third power supply 70; wherein, the first area controller 10 is located in the rear area of ​​the vehicle 80, the second area controller 10 is located in the front area of ​​the vehicle 80, the third area controller 10 is located in the right area of ​​the front of the vehicle 80, and the second area controller 60 is located in the left area of ​​the front of the vehicle 80; the first power supply 40 is a DC-DC converter, and the second power supply 50 and the third power supply 70 are both batteries.

[0110] In some embodiments, the electrical components 20 in the rear area of ​​the vehicle 80 include a rear EPS, a rear motor controller, and rear combination lights, etc., and a first area controller 10 is connected to the rear EPS, rear motor controller, and rear combination lights in the rear area, respectively; the electrical components 20 in the right front area of ​​the vehicle 80 include an intelligent integrated braking system, a front electric power steering system, and an advanced driver assistance system, etc., and a third area controller 10 is connected to the intelligent integrated braking system, front electric power steering system, and advanced driver assistance system in the right area, respectively; the electrical components 20 in the left front area of ​​the vehicle 80 include an electric power steering system, safety system-related loads, and door lock devices, etc., and a second area controller 60 is connected to the front electric power steering system, safety system-related loads, and door lock devices in the left area, respectively; the electrical components 20 in the front front area of ​​the vehicle 80 include windshield wipers, air conditioning, and engine-related loads, etc., and a second area controller 10 is connected to the windshield wipers, air conditioning, and engine-related loads in the front area, respectively.

[0111] Reference Figure 7 In some embodiments, the power supply system includes three first area controllers 10 and one second area controller 60. A first power supply 40 is connected to a splitter 31, which is connected to each of the first area controllers 10. The first first area controller 10 is connected to the first second power supply 50 and the second area controller 60, the second first area controller 10 is connected to the second second power supply 50, and the third first area controller 10 is connected to the third second power supply 50. The second area controller 60 is connected to a third power supply 70 and a fourth power supply 90. The third power supply 70 and the fourth power supply 90 are redundant power supplies, and the fourth power supply 90 can be a battery.

[0112] Reference Figure 8In some embodiments, the power supply system includes three first area controllers 10 and one second area controller 60. A first power supply 40 is connected to a first branching device 31. The first branching device 31 is connected to both the main power supply line 30 and the first first area controller 10. The main power supply line 30 is connected to a second branching device 31. The second branching device 31 is connected to both the first switching device K1 in the second and third first area controllers 10. The second first area controller 10 is connected to a first second power supply 50. A fifth switching device K5 in the third first area controller 60 is connected to the first... The third switching device K3 in the two-area controller 60 is connected, the third first area controller 10 is connected to the second second power supply 50, and the second area controller 60 is connected to the third power supply 70; wherein, the first first area controller 10 is located in the rear area of ​​the vehicle 80, the second first area controller 10 is located in the right front area of ​​the vehicle 80, the third first area controller 10 is located in the left front area of ​​the vehicle 80, and the second area controller 60 is located in the front front area of ​​the vehicle 80; the first power supply 40 is a DC-DC converter, each second power supply 50 is a battery, and the third power supply 70 is a DC-DC converter.

[0113] In some embodiments, the electrical components 20 in the rear area of ​​the vehicle 80 include a rear EPS, a rear motor controller, and rear combination lights, etc., and a first area controller 10 is connected to the rear EPS, rear motor controller, and rear combination lights in the rear area, respectively. The electrical components 20 in the right front area of ​​the vehicle 80 include an intelligent integrated braking system, a front electric power steering system, and an advanced driver assistance system, etc., and a second area controller 10 is connected to the intelligent integrated braking system, front electric power steering system, and advanced driver assistance system in the right area, respectively. The electrical components 20 in the left front area of ​​the vehicle 80 include an electric power steering system, safety system-related loads, and door lock devices, etc., and a third area controller 10 is connected to the front electric power steering system, safety system-related loads, and door lock devices in the left area, respectively. The electrical components 20 in the front front area of ​​the vehicle 80 include windshield wipers, air conditioning, and engine-related loads, etc., and a second area controller 60 is connected to the windshield wipers, air conditioning, and engine-related loads in the front area, respectively, to ensure the driving function of the vehicle 80.

[0114] Reference Figure 9 This application also provides a power supply method applied to the aforementioned power supply system, the method comprising the following steps:

[0115] Step 101: Obtain the status of the main power supply line 30.

[0116] Step 102: In the event of an abnormal state of the main power supply line 30, control the first area controller 10 connected to the second power supply 50 to disconnect from the main power supply line 30, and use the second power supply 50 to supply power to the electrical device 20 corresponding to the first area controller 10 connected to the second power supply 50.

[0117] The specific implementation method of the power supply is similar to the aforementioned implementation process, and will not be repeated here.

[0118] In this embodiment, by acquiring the status of the main power supply line 30, if the status of the main power supply line 30 is abnormal, it indicates that the main power supply line 30 or other first area controllers 10 connected to the main power supply line 30 are abnormal. By controlling the first area controller 10 connected to the second power supply 50 to disconnect from the main power supply line 30, and using the second power supply 50 to supply power to the electrical device 20 corresponding to the first area controller 10 connected to the second power supply 50, it is possible to avoid the main power supply line 30 or other first area controllers 10 connected to the main power supply 30 being abnormal, which would cause the electrical device 20 corresponding to the first area controller 10 connected to the second power supply 50 to lose power, thereby improving the user experience.

[0119] This application also provides a vehicle 80, including the power supply system as described in the first aspect, or the steps of implementing the power supply method as described in the second aspect. The specific implementation is similar to the foregoing and will not be repeated here.

[0120] The centralized power supply system in the relevant technologies has technical defects such as single-point failure risk, bus overload hazard and insufficient topology redundancy. Specifically, it is manifested as follows: (1) When the main domain controller is the core node of power distribution, if the semiconductor power device breaks down or short-circuit, it will directly interrupt the power supply link of the entire domain, and the fault current will spread to the child node through the common bus structure; (2) The hierarchical power distribution architecture is limited by the unidirectional energy transmission path, which leads to the deterioration of the load dynamic balancing capability and the accumulation effect of local node overcurrent; (3) The solidified topology structure requires the reconstruction of bus parameters (such as cross-sectional area and insulation level) when adding new load nodes, which limits the scalability.

[0121] In this embodiment, the electrical components 20 in the critical area are redundantly powered by three power sources. By achieving redundant power supply to the electrical components 20 in other areas, and with the appropriate use of isolating switches, the driving function can be maintained even if any single power source fails. Furthermore, even if the main power supply line 30 experiences a collision and power outage, the electrical components 20 in the critical area can still ensure the unlocking function of the vehicle 80. Thus, when the vehicle 80 collides or a single point of failure occurs at any location on the vehicle, at least one of the electrical components 20 in the left and right areas can operate normally, facilitating rescue operations. For example, when the vehicle 80 collides on one side, it will not affect the normal operation of the electrical components 20 in the other area or the electrical components 20 in the rear area, truly achieving independent power distribution between the electrical components 20 in each area without affecting each other. Meanwhile, the further design of the isolating switch helps to reduce the wire diameter. In addition, the main power supply line 30 adopts rigid wire harness (such as copper wire, copper busbar, aluminum busbar) and provides multiple wire harness interfaces to facilitate wire harness crimping nearby, truly realize local power distribution, save wire harness length, and rigid wire harness has a stronger current carrying capacity than traditional wire harness, while greatly saving wire harness layout space.

[0122] The embodiments of this application enable multiple power supplies to the electrical components 20 in critical areas, improving the overall vehicle safety; the use of isolating switches ensures normal driving function even in the event of a single point failure, resulting in a high safety level; the series-parallel connection method simplifies wiring harness layout by connecting the area controllers in some areas in series, enabling localized power distribution and saving wiring length; while the parallel connection of the area controllers in some areas reduces overcurrent in the area controllers of critical areas, alleviating the pressure on the heat dissipation design of the area controllers; the use of rigid wiring harnesses in the main power supply line 30 provides multiple wiring harness interfaces, saves on branching devices 31, and facilitates heat dissipation.

[0123] In summary, in this embodiment, since the first area controller 10 is connected to the main power supply line 30 and each electrical device 20 corresponding to the first area controller 10, and the main power supply line 30 is connected to the first power source 40, the first area controller 10 controls the power supply of each electrical device 20 corresponding to the first area controller 10, thereby enabling the power supply of the electrical devices 20 of the vehicle 80. Furthermore, since at least one first area controller 10 is connected to the second power source 50, if the main power supply line 30 is abnormal, it indicates that the main power supply line 30 or other first area controllers 10 connected to the main power supply line 30 are abnormal. The first area controllers 10 connected to the second power source 50 are then disconnected from the main power supply line 30, and the second power source 50 supplies power to the electrical devices 20 corresponding to the first area controllers 10 connected to the second power source 50. This prevents the electrical devices 20 corresponding to the first area controllers 10 connected to the second power source 50 from being de-energized due to abnormalities in the main power supply line 30 or other first area controllers 10 connected to the main power supply line 30, thus improving the user experience.

[0124] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited. Functions may be performed in the order shown or discussed, or may be performed substantially simultaneously or in reverse order depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0125] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A power supply system, characterized in that, Includes a second area controller (60) and multiple first area controllers (10); Each of the first area controllers (10) is used to connect to the first power source (40) and the electrical components (20) of the vehicle, respectively, and at least one of the first area controllers (10) is also used to connect to the second power source (50); The second area controller (60) is connected to the first area controller (10) corresponding to the second area controller (60), and the second area controller (60) is used to connect to the electrical components (20) of the vehicle.

2. The power supply system according to claim 1, characterized in that, The first area controller (10) connected to the second power supply (50) includes a first switching device (K1); In the first area controller (10) connected to the second power supply (50), the first switching device (K1) is connected to the vehicle's electrical device (20) and the main power supply line (30) respectively; The main power supply line (30) is connected to the first power source (40), and the first switching device (K1) is configured to be turned on when the main power supply line (30) is normal, and / or to be turned off when the main power supply line (30) is abnormal.

3. The power supply system according to claim 1, characterized in that, The first area controller (10) includes at least one second switching device (K2); The second switching device (K2) is connected to the vehicle's electrical components (20) and the main power supply line (30) respectively; The main power supply line (30) is connected to the first power supply (40), and the second power supply (50) is connected to the first area controller (10). The second switching device (K2) is also connected to the second power supply (50). When the second switching device (K2) is turned on, the electrical device (20) connected to the second switching device (K2) is powered on, and / or when the second switching device (K2) is turned off, the electrical device (20) connected to the second switching device (K2) is de-energized.

4. The power supply system according to claim 3, characterized in that, The first area controller (10) further includes a first control unit (11); The first control unit (11) is connected to the second switching device (K2), and the first control unit (11) is configured to control the second switching device (K2) to turn on and off.

5. The power supply system according to claim 1, characterized in that, The first area controller (10) corresponding to the second area controller (60) is also configured to control the connection and disconnection between the second area controller (60) and the main power supply line (30).

6. The power supply system according to claim 1, characterized in that, The second area controller (60) is also configured to connect to a third power supply (70) and to disconnect the first area controller (10) connected to the second area controller (60) in the event of an malfunction of the first area controller (10) connected to the second area controller (60), and to use the third power supply (70) to power the electrical devices (20) connected to the second area controller (60).

7. The power supply system according to claim 6, characterized in that, The second area controller (60) is also configured to control the switching on and off of the first area controller (10) corresponding to the second area controller (60) and the third power supply (70); When the first area controller (10) corresponding to the second area controller (60) is connected to the third power supply (70), the third power supply (70) is connected to the main power supply line (30).

8. The power supply system according to claim 1, characterized in that, The second area controller (60) includes a third switching device (K3). In the second area controller (60), the third switching device (K3) is connected to the electrical device (20) of the vehicle and the first area controller (10) corresponding to the second area controller (60). The third switching device (K3) is configured to be turned on when the first area controller (10) corresponding to the second area controller (60) is normal, and / or to be turned off when the first area controller (10) corresponding to the second area controller (60) is abnormal. And / or: The first area controller (10) corresponding to the second area controller (60) includes a fifth switching device (K5). In the first area controller (10) corresponding to the second area controller (60), the fifth switching device (K5) is connected to the electrical device (20) of the vehicle, the second area controller (60) and the main power supply line (30) respectively. The fifth switching device (K5) is used to turn on when the second area controller (60) is normal and / or to turn off when the second area controller (60) is abnormal.

9. The power supply system according to claim 8, characterized in that, The second area controller (60) also includes at least one fourth switching device (K4); The fourth switching device (K4) is connected to the vehicle's electrical components (20) and the third switching device (K3) respectively; The third switching device (K3) is connected to the first area controller (10) corresponding to the second area controller (60).

10. The power supply system according to claim 9, characterized in that, When both the third switch (K3) and the fourth switch (K4) are turned on, the electrical device (20) connected to the fourth switch (K4) is energized; when either the third switch (K3) or the fourth switch (K4) is turned off, the electrical device (20) connected to the fourth switch (K4) is de-energized.

11. The power supply system according to claim 9 or 10, characterized in that, The second area controller (60) also includes a second control unit (61); The second control unit (61) is connected to the fourth switching device (K4), and the second control unit (61) is used to control the fourth switching device (K4) to turn on and off.

12. The power supply system according to claim 1, characterized in that, The first area controller (10) corresponding to the second area controller (60) is also configured to disconnect from the second area controller (60) in the event of an abnormality of the second area controller (60).

13. The power supply system according to claim 1, characterized in that, The second area controller (60) and each of the first area controllers (10) are located in different areas of the vehicle (80); The first area controller (10) is connected to the electrical devices (20) in the area where the first area controller (10) is located; The second area controller (60) is connected to the electrical devices (20) in the area where the second area controller (60) is located.

14. A vehicle (80), characterized in that, Including the power supply system as described in any one of claims 1 to 13.

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