Power supply system and vehicle

Abstract

The utility model provides a power supply system and a vehicle, and relates to the technical field of power supply control. In the power supply system, the SBC outputs the signal when receiving the heartbeat signal, and the signal output by the SBC is the signal capable of enabling the first power supply module, so that the first power supply module is enabled when the SBC does not receive the heartbeat signal, and the first power supply module can supply power to the outside when the SBC does not receive the heartbeat signal. In addition, under normal conditions, the controller outputs a heartbeat signal to the SBC under the condition that the controller does not have a fault, so that the SBC does not receive the heartbeat signal to indicate that the controller has the fault. In conclusion, under the condition that the controller breaks down, the first power module can still supply power to the outside, so that the power supply system provided by the utility model can reduce the possibility of self power supply failure under the condition that the controller breaks down.

Description

Technical Field

[0001] This utility model relates to the field of power supply control technology, and in particular to a power supply system and a vehicle. Background Technology

[0002] In a vehicle, if the power supply to a system fails, that system cannot function properly. For example, with a vehicle's limp-home system, if the power supply to the limp-home system fails, the vehicle cannot enter limp-home mode; that is, the vehicle cannot operate at the minimum required performance level, thus limp-home mode is disabled.

[0003] Currently, the possibility of system power failure can be reduced by setting up backup power supplies. However, the power supply controller itself is also susceptible to failure due to program crashes or hardware malfunctions. A controller failure can also lead to a power supply system failure.

[0004] Therefore, how to reduce the possibility of power supply failure in the event of controller failure is an urgent technical problem to be solved. Utility Model Content

[0005] In view of this, the present invention provides a power supply system and a vehicle to reduce the possibility of power supply failure in the event of a controller malfunction.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] This application provides a power supply system, comprising: an SBC, a first power module, a controller, and at least one second power module; wherein:

[0008] The input terminal of the SBC is connected to the controller to receive heartbeat signals;

[0009] The enable terminal of the first power module is connected to the controller, and the enable terminal of each second power module is also connected to the controller.

[0010] The output terminal of the first power module and the output terminals of all the second power modules are connected together, and the connection point serves as the output terminal of the power supply system.

[0011] The SBC outputs a signal when it does not receive the heartbeat signal itself;

[0012] If the signal output by the SBC is a signal that enables the first power module, then the output terminal of the SBC is connected to the enable terminal of the first power module.

[0013] Optionally, if the signal output by the SBC is a signal that cannot enable the first power module, then the power supply system further includes: a first signal conversion module; wherein:

[0014] The output terminal of the SBC is connected to the input terminal of the first signal conversion module, and the output terminal of the first signal conversion module is connected to the enable terminal of the first power module.

[0015] The signal converted by the first signal conversion module is a signal that enables the first power module.

[0016] Optionally, it also includes: at least one anti-reverse branch; wherein:

[0017] In at least one power module of the power supply system, an anti-reverse branch is provided between the output terminal of each power module and the output terminal of the power supply system.

[0018] Optionally, the acquisition terminal of the controller is connected to the output terminal of the power supply system.

[0019] Optionally, the input terminals of all power modules in the power supply system are connected to the same power source;

[0020] or,

[0021] The input terminals of all power modules in the power supply system are not connected to the same power source.

[0022] Optionally, each power module in the power supply system is any one of the following: DC buck switching power supply, DC boost switching power supply, or DC buck-boost switching power supply.

[0023] Another aspect of this application provides a vehicle, comprising: at least one functional system and a power supply system as described in any of the preceding aspects of this application; wherein:

[0024] Each of the aforementioned functional systems is connected to the output terminal of the power supply system.

[0025] Optionally, the functional system connected to the output of the power supply system includes a limp mode system.

[0026] Optionally, the controller in the power supply system is the vehicle controller in the vehicle;

[0027] If the signal output by the SBC in the power supply system is a signal that enables the limp mode system, then the output terminal of the SBC is connected to the enable terminal of the limp mode system.

[0028] Optionally, if the signal output by the SBC in the power supply system is a signal that cannot enable the limp mode system, then the vehicle further includes: a second signal conversion module;

[0029] The output terminal of the SBC is connected to the input terminal of the second signal conversion module, and the output terminal of the second signal conversion module is connected to the enable terminal of the limp mode system.

[0030] The signal converted by the second signal conversion module is a signal that enables the limp mode system.

[0031] As can be seen from the above technical solution, this utility model provides a power supply system. In this power supply system, since the SBC outputs a signal when it receives a heartbeat signal, and the signal output by the SBC is a signal that enables the first power module, the first power module is enabled even when the SBC does not receive a heartbeat signal, thus enabling the first power module to supply power externally even when the SBC does not receive a heartbeat signal. Furthermore, since the controller normally outputs a heartbeat signal to the SBC when it is not malfunctioning, the SBC's failure to receive a heartbeat signal indicates that the controller has malfunctioned. In summary, even when the controller malfunctions, the first power module can still supply power externally; therefore, the power supply system provided by this application can reduce the possibility of its own power supply failure when the controller malfunctions. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of a first embodiment of the power supply system provided in this application.

[0034] Figure 2 This is a schematic diagram of a second embodiment of the power supply system provided in this application.

[0035] Figure 3 This is a schematic diagram of a third embodiment of the power supply system provided in this application.

[0036] Figure 4 This is a schematic diagram of a fourth embodiment of the power supply system provided in this application.

[0037] Figure 5This is a schematic diagram of a fifth embodiment of the power supply system provided in this application.

[0038] Figure 6 A schematic diagram of a sixth embodiment of the power supply system provided in this application;

[0039] Figure 7 A flowchart illustrating the method executed by the controller 40, which has not experienced a fault, as provided in this embodiment of the application.

[0040] Figure 8 This is a schematic diagram of the structure of a first embodiment of the vehicle provided in this application.

[0041] Figure 9 This is a schematic diagram of a second embodiment of the vehicle provided in this application.

[0042] Figure 10 This is a schematic diagram of a third embodiment of the vehicle provided in this application.

[0043] Figure 11 This is a schematic diagram of the fourth embodiment of the vehicle provided in this application. Detailed Implementation

[0044] The technical solutions of 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 embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0045] In this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 limitation, 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 said element.

[0046] To reduce the likelihood of power supply failure in the event of a controller malfunction, another embodiment of this application provides a power supply system, the specific structure of which can be found in [reference needed]. Figure 1 ( Figure 1 (Using only two secondary power modules as an example), specifically including: SBC (System Basis Chip) 10, first power module 20, controller 40, and at least one secondary power module. The connection relationships between the components are as follows:

[0047] The input of SBC 10 is connected to controller 40 to receive a heartbeat signal. If SBC 10 receives a heartbeat signal, it will not output a signal. If SBC 10 does not receive a heartbeat signal, it will output a signal.

[0048] SBC 10 is an independent chip that includes power communication, monitoring and diagnostics, and security monitoring features. Normally, if controller 40 is functioning correctly, it continuously sends heartbeat signals to SBC 10, meaning SBC 10 receives the heartbeat signals. Conversely, if controller 40 malfunctions, it stops sending heartbeat signals to SBC 10, meaning SBC 10 does not receive the heartbeat signals.

[0049] Since the controller 40 normally outputs a heartbeat signal to the SBC 10 when it is not malfunctioning, the fact that the SBC 10 does not receive a heartbeat signal indicates that the controller 40 has malfunctioned.

[0050] It should be noted that SBC 10 is already a very mature technology, and will not be described in detail here.

[0051] The enable terminal of the first power module 20 is connected to the controller 40, and the enable terminal of each second power module is also connected to the controller 40. In practical applications, if the controller 40 does not malfunction, whether the first power module 20 is enabled, and whether the second power module is enabled, are both controlled by the controller 40. When the controller 40 enables the first power module 20 and when it enables which second power module will be described in detail in the following embodiments, and will not be repeated here.

[0052] The output terminals of the first power module 20 and all the output terminals of the second power modules are connected. The connection point serves as the output terminal of the power supply system, which is used to output electrical energy.

[0053] If the signal output by SBC 10 is a signal that enables the first power module 20, then the output terminal of SBC 10 is connected to the enable terminal of the first power module 20.

[0054] Since SBC 10 outputs a signal when it receives a heartbeat signal, and the signal output by SBC 10 is a signal that enables the first power module 20, the first power module 20 is enabled when SBC 10 does not receive a heartbeat signal, so that the first power module 20 can provide external power when SBC 10 does not receive a heartbeat signal.

[0055] In this power supply system, the first power module 20 can supply power to the outside when the SBC 10 does not receive a heartbeat signal. The fact that the SBC 10 does not receive a heartbeat signal indicates that the controller 40 has failed. Therefore, even when the controller 40 fails, the first power module 20 can still supply power to the outside. Thus, the power supply system provided in this application can reduce the possibility of its own power supply failure when the controller 40 fails.

[0056] Another embodiment of this application provides another implementation of the power supply system, applicable to the following situation: the signal output by SBC 10 is a signal that cannot enable the first power module 20. For the specific structure of this implementation, please refer to... Figure 2 ( Figure 2 Only Figure 1 Based on the above embodiments, this implementation also includes a first signal conversion module 50. The connection relationship between this device and other devices is specifically described below:

[0057] The output terminal of SBC 10 is connected to the input terminal of the first signal conversion module 50, and the output terminal of the first signal conversion module 50 is connected to the enable terminal of the first power supply module 20.

[0058] The signal converted by the first signal conversion module 50 is a signal that enables the first power module 20. In other words, the first signal conversion module 50 is used to convert a signal that cannot enable the first power module 20 into a signal that can enable the first power module 20.

[0059] It should be noted that the circuit used by the first signal conversion module 50 to convert a signal that cannot enable the first power module 20 into a signal that can enable the first power module 20 is already very mature in the prior art, and will not be described in detail here.

[0060] In this embodiment, by adding a first signal conversion module 50, the signal output by SBC 10 that cannot enable the first power module 20 is converted into a signal that can enable the first power module 20. Therefore, even if the signal output by SBC 10 is a signal that cannot enable the first power module 20, this embodiment can still enable the first power module 20 in this situation, thereby enabling the power supply system to adapt to different situations of the signal output by SBC 10.

[0061] It should be noted that, under normal circumstances, the signal output by SBC 10 when no heartbeat signal is received is a low-level signal, while the signal that enables the first power module 20 is a high-level signal. Therefore, under normal circumstances, the signal output by SBC 10 when no heartbeat signal is received is a signal that cannot enable the first power module 20, thus the implementation method provided in this embodiment is more commonly used.

[0062] Another embodiment of this application provides another implementation of the power supply system, the specific structure of which can be found in [reference needed]. Figures 3-5 ( Figures 3-5 All only Figure 2 (This is based on the above implementation). This implementation method, based on the above implementation method, also includes: at least one anti-reverse branch 60.

[0063] In at least one power module in the power supply system, an anti-reverse branch 60 is provided between the output terminal of each power module and the output terminal of the power supply system.

[0064] Specifically, if an anti-reverse branch 60 is installed between the output terminal of a power module and the output terminal of the power supply system, then the output terminal of the anti-reverse branch 60 is connected to the output terminal of the power supply system. The connection relationships of other anti-reverse branches 60 are the same as described above, and will not be repeated here.

[0065] In one specific example, in at least one second power supply module, an anti-reverse branch 60 is provided between the output terminal of each second power supply module and the output terminal of the power supply system.

[0066] For example, such as Figure 3 As shown, it includes two anti-reverse branch circuits 60. The input terminals of the two anti-reverse branch circuits 60 are respectively connected to the output terminals of the two second power modules, and the output terminals of the two anti-reverse branch circuits 60 are both connected to the output terminals of the power supply system.

[0067] Since an anti-reverse branch 60 is provided between the output terminal of each second power module and the output terminal of the power supply system in at least one second power module, the possibility of current flowing into the corresponding second power module can be reduced when the first power module 20 supplies power to the outside, thus reducing the possibility of backflow in the corresponding second power module. If an anti-reverse branch 60 is provided between the output terminal of each second power module and the output terminal of the power supply system, the possibility of backflow in each second power module can be reduced.

[0068] In another specific example, an anti-reverse branch 60 is provided between the output terminal of the first power module 20 and the output terminal of the power supply system.

[0069] For example, such as Figure 4 As shown, it includes an anti-reverse branch 60, the input terminal of which is connected to the output terminal of the first power module 20, and the output terminal of which is connected to the output terminal of the power supply system.

[0070] Since an anti-reverse branch 60 is provided between the output terminal of the first power module 20 and the output terminal of the power supply system, the possibility of current flowing into the first power module 20 can be reduced when the second power module supplies power to the outside, thus reducing the possibility of backflow in the first power module 20.

[0071] In another specific example, in at least one second power supply module, a reverse protection branch 60 is provided between the output terminal of each second power supply module and the output terminal of the power supply system. A reverse protection branch 60 is also provided between the output terminal of the first power supply module 20 and the output terminal of the power supply system.

[0072] For example, such as Figure 5 As shown, it includes three reverse protection branches 60. The input terminals of two reverse protection branches 60 are connected to the output terminals of two second power modules, respectively, and the output terminals of these two reverse protection branches 60 are both connected to the output terminal of the power supply system. The input terminal of the other reverse protection branch 60 is connected to the output terminal of the first power module 20, and the output terminal of this reverse protection branch 60 is connected to the output terminal of the power supply system.

[0073] Because this example combines the features of the two examples above, it reduces the possibility of backflow in the first power module 20 and the corresponding second power module. If an anti-reverse branch 60 is provided between the output of each second power module and the output of the power supply system, the possibility of backflow in the first power module 20 and each second power module is further reduced.

[0074] The above three examples only demonstrate three ways to set up the anti-reverse branch 60. In practical applications, there are three possible settings, including but not limited to these. No specific limitations are made here. The settings can be determined according to the specific circumstances, and all are within the scope of protection of this application.

[0075] In a specific example, the reverse polarity protection branch includes at least one diode. If the number of diodes is greater than one, the diodes are connected in series in the same direction, with the anode of the series branch serving as the input terminal and the cathode serving as the output terminal. If the number of diodes is equal to one, the anode of the diode serves as the input terminal and the cathode serves as the output terminal, for example, as shown below. Figures 3-5 As shown in D in the diagram.

[0076] In this embodiment, by setting up an anti-reverse branch 60, the current flowing out from other power modules will not flow into itself, thus reducing the possibility of backflow in the corresponding power module.

[0077] Another embodiment of this application provides another implementation of the power supply system, which differs from any of the above embodiments in that:

[0078] In this embodiment, the input terminals of all power modules in the power supply system are connected to the same power source, or the input terminals of all power modules in the power supply system are not all connected to the same power source.

[0079] In this context, "not all input terminals of all power modules in the power supply system are connected to the same power source" means that all power modules are divided into at least two parts, and the input terminals of each part are connected to their respective power sources. For example, suppose the system includes a first power module 20 and two second power modules. The output terminal of the first power module 20 is connected to the first power source, and the output terminals of both second power modules are connected to the second power source.

[0080] If all power module inputs are connected to the same power source, only one power source needs to be configured on-site, thus reducing installation requirements. However, if this power source fails, all power modules will fail, resulting in a power supply failure in the entire power system.

[0081] If the input terminals of all power modules are not connected to the same power source, at least two power sources need to be configured on-site, which places higher demands on on-site safety. However, if one power source fails, the other can still be used, so it does not necessarily lead to a power supply failure, thus further reducing the possibility of power supply failure.

[0082] Another embodiment of this application provides another implementation of the power supply system, which differs from any of the above embodiments in that:

[0083] In this embodiment, each power supply module in the power supply system is any one of the following: DC buck switching power supply, DC boost switching power supply, or DC buck-boost switching power supply.

[0084] It should be noted that DC buck switching power supplies, DC boost switching power supplies, and DC buck-boost switching power supplies are all very common devices in existing technology, and will not be described in detail here.

[0085] It should be noted that there is no restriction on whether the specific selection of each power module is the same. In other words, the selection of the first power module 20 can be the same as or different from that of the second power module.

[0086] The above only shows three types of switching power supplies. In practical applications, each power module can also be other devices that can serve as power supplies, such as AC switching power supplies. No specific limitation is made here, and it can be determined according to the specific situation. All of these are within the protection scope of this application.

[0087] Another embodiment of this application provides another implementation of the power supply system, which differs from any of the above embodiments in that:

[0088] In this implementation, see Figure 6 The acquisition terminal of the controller 40 is connected to the output terminal of the power supply system and is used to acquire the output voltage or output current of the power supply system.

[0089] The controller 40 determines whether the power supply to the external system is normal by measuring the output voltage or output current of the power supply system, that is, whether the power supply module supplying the external power has malfunctioned. It should be noted that the controller 40's method of determining whether the power supply to the external system is normal by measuring the output voltage or output current of the power supply system is already very mature in existing technology, and will not be elaborated further here.

[0090] If the power supply to the outside is abnormal, that is, the power supply module that supplies power to the outside fails, the controller 40 controls the power supply module to be disabled, and the controller 40 controls any of the other power modules that have not failed to be enabled. In other words, if the power supply module that originally supplies power to the outside fails, another power supply module will be switched to supply power to the outside.

[0091] Since if the power module that originally supplies power to the outside fails, another power module will be switched to supply power to the outside, this implementation method can reduce the possibility of power supply failure in the power supply system if the controller 40 does not fail.

[0092] Taking power module A and power module B as an example, the method executed by the controller 40, which has not experienced a fault, is described in detail below. The specific process of this method is as follows: Figure 7 As shown, the specific steps include:

[0093] S100: The controller determines whether the power supply to the outside is normal by measuring the output current or output voltage of the power supply system.

[0094] If the power supply to the outside is not normal, then execute steps S200 and S300 in sequence; if the power supply to the outside is normal, then return to execute step S100.

[0095] It should be noted that in the initial stage of the power supply system supplying power to external systems, power module A is the default power supply module.

[0096] Since power module A is the default power supply module in the initial stage of the power supply system supplying power to the outside, if the power supply system is found to be abnormal in step S100, it indicates that power module A has failed; otherwise, it indicates that power module A has not failed.

[0097] Since power module A is the default power supply module in the initial stage of power supply system, it will always supply power to the outside unless it is determined through step S100 that the power supply system is not abnormal.

[0098] S200: The controller disables power module A and enables power module B.

[0099] The S300 controller determines whether the power supply system is functioning properly by checking the output current or voltage of the power supply system.

[0100] If the power supply to the outside is abnormal, proceed to step S400; if the power supply to the outside is normal, return to step S300.

[0101] Since power module B is enabled when step S300 is executed, it is power module B that supplies power to the outside. Therefore, if step S300 determines that the power supply to the outside of the power supply system is abnormal, it indicates that power module B has failed. Otherwise, it indicates that power module B has not failed.

[0102] Since power module B provides external power during step S300, if step S100 does not determine that the power supply system is not functioning properly, power module B will continue to provide external power.

[0103] S400: The controller disables power module B and reports a fault.

[0104] Specifically, both power module A and power module B were reported to have malfunctioned.

[0105] If multiple power modules are included, the method performed by the controller that has not failed is similar to that described above and can be obtained by analogy, so it will not be repeated here.

[0106] Another embodiment of this application provides a vehicle, the specific structure of which can be found in [reference needed]. Figure 8 ( Figure 8 Only Figure 6 Based on this, we will demonstrate using three functional systems (100) as an example. Figure 9 ( Figure 9 Only Figure 6 Based on the above embodiments, taking the limp-mode system as an example, it specifically includes: at least one functional system 100, and a power supply system 200 as provided in the above embodiments.

[0107] Each functional system 100 is connected to the output terminal of the power supply system 200.

[0108] Among them, functional system 100 refers to a system in the vehicle that performs a certain function, such as a limp mode system.

[0109] In a specific example, such as Figure 9 As shown, the functional system 100 connected to the output terminal of the power supply system 200 includes: a limp mode system.

[0110] The above example only shows one implementation of the functional system 100 connected to the output terminal of the power supply system 200. In actual applications, there are other implementations, including but not limited to this one. No specific limitation is made here, and it can be determined according to the specific situation.

[0111] In this embodiment, since the vehicle includes the power supply system 200 provided in the above embodiment, the likelihood of each functional system 100 receiving power is increased in the event of a controller 40 failure, thereby improving vehicle safety. If the functional system 100 connected to the output of the power supply system 200 includes a limp-mode system, the likelihood of the vehicle operating at the minimum required performance level is increased.

[0112] Another embodiment of this application provides another implementation of a vehicle, applicable to the following situations: the controller 40 in the power supply system 200 is the vehicle controller, and the functional system 100 connected to the output terminal of the power supply system 200 includes a limp mode system; and the signal output by the SBC 10 in the power supply system 200 is a signal that enables the limp mode system. For the specific structure of this embodiment, please refer to... Figure 10 ( Figure 10 Only Figure 9 This implementation method is based on the above implementation method.

[0113] In this embodiment, the output of SBC 10 is connected to the enable terminal of the limp mode system.

[0114] In this embodiment, since the controller 40 in the power supply system 200 is the vehicle controller, in the event of a failure of the vehicle controller, the SBC 10 can output a signal to enable the limp mode system. That is, the limp mode system can be enabled under this condition. Therefore, this embodiment can increase the possibility that the limp mode system can be enabled in the event of a failure of the vehicle controller, that is, it can increase the possibility that the limp mode system can work normally, thereby improving the control reliability of the limp mode system.

[0115] Another embodiment of this application provides another implementation of a vehicle, applicable to the following situations: the controller 40 in the power supply system 200 is the vehicle controller, and the functional system 100 connected to the output terminal of the power supply system 200 includes a limp-mode system; and the signal output by the SBC 10 in the power supply system 200 is a signal that prevents the limp-mode system from being enabled. For the specific structure of this embodiment, please refer to... Figure 10 ( Figure 10 Only Figure 9 Based on the above embodiments, this implementation method further includes: a second signal conversion module 300.

[0116] The output of SBC 10 is connected to the input of the second signal conversion module 300, and the output of the second signal conversion module 300 is connected to the enable terminal of the limp mode system.

[0117] The signal converted by the second signal conversion module 300 is a signal that enables the limp mode system. In other words, the second signal conversion module 300 is used to convert a signal that cannot enable the limp mode system into a signal that can enable the limp mode system.

[0118] It should be noted that the circuit used in the first signal conversion module 50 to convert a signal that cannot enable the limp mode system into a signal that can enable the limp mode system is already very mature in the prior art, and will not be described in detail here.

[0119] In this embodiment, by adding a second signal conversion module 300, the signal output by SBC 10 that cannot enable the limp mode system is converted into a signal that can enable the limp mode system. Therefore, even if the signal output by SBC 10 is a signal that cannot enable the limp mode system, this embodiment can still enable the limp mode system in this situation, thereby enabling the power supply system 200 to adapt to different situations of the signal output by SBC 10.

[0120] It should be noted that, under normal circumstances, the SBC 10 outputs a low-level signal when it does not receive a heartbeat signal, while the signal that enables the limp mode system is a high-level signal. Therefore, under normal circumstances, the SBC 10 outputs a signal that does not enable the limp mode system when it does not receive a heartbeat signal, and thus the implementation method provided in this embodiment is more commonly used.

[0121] The features described above in the disclosed embodiments can be substituted or combined with each other, enabling those skilled in the art to implement or use this application. The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model using the disclosed methods and techniques, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of the present utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A power supply system, characterized in that, include: SBC, a first power module, a controller, and at least one second power module; wherein: The input terminal of the SBC is connected to the controller to receive heartbeat signals; The enable terminal of the first power module is connected to the controller, and the enable terminal of each second power module is also connected to the controller. The output terminal of the first power module and the output terminals of all the second power modules are connected together, and the connection point serves as the output terminal of the power supply system. The SBC outputs a signal when it does not receive the heartbeat signal itself; If the signal output by the SBC is a signal that enables the first power module, then the output terminal of the SBC is connected to the enable terminal of the first power module.

2. The power supply system according to claim 1, characterized in that, If the signal output by the SBC is a signal that cannot enable the first power module, then the power supply system further includes: a first signal conversion module; wherein: The output terminal of the SBC is connected to the input terminal of the first signal conversion module, and the output terminal of the first signal conversion module is connected to the enable terminal of the first power module. The signal converted by the first signal conversion module is a signal that enables the first power module.

3. The power supply system according to claim 1, characterized in that, Also includes: At least one anti-reverse branch; wherein: In at least one power module of the power supply system, an anti-reverse branch is provided between the output terminal of each power module and the output terminal of the power supply system.

4. The power supply system according to any one of claims 1 to 3, characterized in that, The controller's acquisition terminal is connected to the output terminal of the power supply system.

5. The power supply system according to any one of claims 1 to 3, characterized in that, The input terminals of all power modules in the power supply system are connected to the same power source. or, The input terminals of all power modules in the power supply system are not connected to the same power source.

6. The power supply system according to any one of claims 1 to 3, characterized in that, Each power module in the power supply system is any one of the following: DC buck switching power supply, DC boost switching power supply, or DC buck-boost switching power supply.

7. A vehicle, characterized in that, include: At least one functional system, and a power supply system as described in any one of claims 1 to 6; wherein: Each of the aforementioned functional systems is connected to the output terminal of the power supply system.

8. The vehicle according to claim 7, characterized in that, The functional system connected to the output terminal of the power supply system includes: a limp mode system.

9. The vehicle according to claim 8, characterized in that, The controller in the power supply system is the vehicle controller in the vehicle. If the signal output by the SBC in the power supply system is a signal that enables the limp mode system, then the output terminal of the SBC is connected to the enable terminal of the limp mode system.

10. The vehicle according to claim 8, characterized in that, If the signal output by the SBC in the power supply system is a signal that cannot enable the limp mode system, then the vehicle further includes: a second signal conversion module; The output terminal of the SBC is connected to the input terminal of the second signal conversion module, and the output terminal of the second signal conversion module is connected to the enable terminal of the limp mode system. The signal converted by the second signal conversion module is a signal that enables the limp mode system.

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