Intelligent power distribution method and apparatus for vehicle, and vehicle

Abstract

An intelligent power distribution method and apparatus for a vehicle, a vehicle, a computer-readable storage medium, and a computer program product. The method comprises: in response to a power distribution instruction for an electrical load end in a vehicle, enabling a power output chip in a zonal control unit; monitoring a current diagnostic feedback signal of the power output chip; and when the monitored current diagnostic feedback signal of the power output chip indicates an overcurrent shutdown fault, re-enabling the power output chip.

Description

Intelligent power distribution method and device of vehicle and vehicle

[0001] Cross-reference to Related Applications

[0002] This application claims priority to Chinese application No. 2024112530924, filed on September 6, 2024, which is hereby incorporated by reference in its entirety for all purposes. TECHNICAL FIELD

[0003] The present application relates to vehicle technology, and in particular to an intelligent power distribution method and device of a vehicle, a vehicle, a computer readable storage medium, and a computer program product. BACKGROUND

[0004] With the rapid development of vehicle electrical appliances, the low-voltage power supply mode of the vehicle is gradually changing from the traditional fuse and relay control to intelligent power distribution based on a regional control unit. The regional control unit combines the vehicle state and use scenarios to control the Efuse, HSD, and other power output chips, thereby realizing intelligent power distribution of the low-voltage power supply of the vehicle. The power output chip has the characteristics of current diagnosis, protection curve configuration, real-time on-off control, and the like. Compared with the traditional fuse and relay scheme, it can more accurately manage the power supply of the power distribution load.

[0005] Limited by the maximum output capability of the power output chip, during the startup moment and working process of the power consumption load end, the impact current generated by the charging of the filter capacitor at the power supply end may exceed the maximum output capability of the power output chip, triggering the overcurrent protection of the power output chip and thereby shutting down the output, resulting in power distribution failure. In the scheme provided by the related technology, a higher specification power output chip is usually selected, so that its maximum output capability is greater than the impact current, thereby solving the impact current problem. However, this will inevitably lead to an increase in cost. SUMMARY

[0006] The present application provides an intelligent power distribution method and device of a vehicle, a vehicle, a computer readable storage medium, and a computer program product, which can solve the impact current problem without increasing the cost and without the user's awareness.

[0007] The technical solution of the present application is implemented as follows:

[0008] The present application provides an intelligent power distribution method of a vehicle, applied to a regional control unit in the vehicle; the method comprises:

[0009] In response to a power distribution instruction for a power consumption load end in the vehicle, enabling a power output chip in the regional control unit;

[0010] Monitoring the current diagnosis feedback signal of the power output chip;

[0011] re-enable the power output chip when it is monitored that the current diagnostic feedback signal of the power output chip is an over-current shutdown fault.

[0012] The application provides a smart power distribution device of a vehicle, which is applied to a zone control unit in the vehicle.

[0013] The starting module is configured to enable a power output chip in the zone control unit in response to a power distribution instruction for an electrical load end in the vehicle.

[0014] The monitoring module is configured to monitor a current diagnostic feedback signal of the power output chip.

[0015] The starting module is further configured to re-enable the power output chip when it is monitored that the current diagnostic feedback signal of the power output chip is an over-current shutdown fault.

[0016] The application provides a vehicle, which comprises:

[0017] A memory is configured to store executable instructions.

[0018] A processor is configured to execute the executable instructions stored in the memory, so as to implement the smart power distribution method of the vehicle provided by the application.

[0019] The application provides a computer readable storage medium, which stores executable instructions, and is configured to cause a processor to execute the smart power distribution method of the vehicle provided by the application.

[0020] The application provides a computer program product, which comprises executable instructions, and is configured to cause a processor to execute the smart power distribution method of the vehicle provided by the application.

[0021] The application has the following beneficial effects:

[0022] The application enables a power output chip in a zone control unit in response to a power distribution instruction for an electrical load end in a vehicle, monitors a current diagnostic feedback signal of the power output chip, and re-enables the power output chip when it is monitored that the current diagnostic feedback signal of the power output chip is an over-current shutdown fault. In this way, the power output chip is restarted by re-enabling the power output chip, so as to reduce the peak value of the impact current, improve the power distribution success rate, and solve the impact current problem at the software level without cost, without the need to make changes at the hardware level. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description only constitute some embodiments of the present application. For those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0024] Fig. 1 is a first structural schematic diagram of a vehicle provided by an embodiment of the present application;

[0025] Fig. 2 is a second structural schematic diagram of a vehicle provided by an embodiment of the present application;

[0026] Fig. 3A is a first flow schematic diagram of an intelligent power distribution method of a vehicle provided by an embodiment of the present application;

[0027] Fig. 3B is a second flow schematic diagram of an intelligent power distribution method of a vehicle provided by an embodiment of the present application;

[0028] Fig. 3C is a third flow schematic diagram of an intelligent power distribution method of a vehicle provided by an embodiment of the present application;

[0029] Fig. 3D is a fourth flow schematic diagram of an intelligent power distribution method of a vehicle provided by an embodiment of the present application;

[0030] Fig. 4 is a fifth flow schematic diagram of an intelligent power distribution method of a vehicle provided by an embodiment of the present application;

[0031] Fig. 5 is a mode switching schematic diagram provided by an embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the present application in combination with the drawings, and the described embodiments should not be regarded as limitation of the present application. All other embodiments obtained by those skilled in the art without any creative effort shall fall within the scope of protection of the present application.

[0033] In the following description, “some embodiments” are described, which describe a subset of all possible embodiments, but it can be understood that “some embodiments” can be the same subset or different subset of all possible embodiments, and can be combined with each other without conflict. In the following description, the term “a plurality of” refers to at least two.

[0034] In the following description, the term “first\second\third” only distinguishes similar objects, and does not represent a specific order of the objects. It can be understood that “first\second\third” can be interchanged in a specific order or sequence as allowed, so that the embodiments of the present application described here can be implemented in an order other than that illustrated or described here.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing the embodiments of the application only and is not intended to be limiting of the application.

[0036] Before the embodiments of the present application are explained in further detail, the nomenclature and terminology involved in the embodiments of the present application are explained, which are applicable to the following explanations.

[0037] 1) Zone Control Unit (ZCU): is the core component in the vehicle electronic and electrical architecture, which carries the important task of managing and controlling the specific area in the vehicle, and provides strong guarantee for the stable operation and efficient cooperation of intelligent connected vehicles. The functions of the zone control unit include but are not limited to: ① Zone power supply center: power supply for the power load end in the region, and provides intelligent management of power consumption, wherein the power load end such as sensor, actuator, controller; ② Zone I / O center: provides interface for sensors, actuators, controllers in the region, realizes I / O control and signal acquisition; ③ Zone data center: sensor, actuator, controller abstraction and atomization service packaging, realize service and signal mapping.

[0038] 2) Power output chip: is a driving chip built-in in the zone control unit, which is used to control the output function of the power supply, such as conversion, distribution and management of the input power supply, to meet the power supply demand of the power load end in the region. In the embodiments of the present application, the power output chip is used to realize the functions of overcurrent protection and open circuit (short circuit) protection, wherein the overcurrent protection refers to automatically cutting off the power supply when the output current exceeds the maximum output capacity (i.e. current threshold), to prevent the power load end from being damaged; the open circuit protection refers to automatically cutting off the power supply when the open circuit condition is detected, to prevent the power load end from being damaged. The specific type of the power output chip is not limited in the embodiments of the present application, for example, it can be an electronic fuse (eFuse), a high side driver (HSD) and the like.

[0039] 3) Surge current: refers to the instantaneous large current suddenly generated when the circuit is turned on or during the working process.

[0040] The embodiments of the present application provide a smart power distribution method and device for a vehicle, a vehicle, a computer readable storage medium and a computer program product, which can solve the problem of surge current without increasing cost and without user awareness. The following describes an exemplary application of the vehicle provided by the embodiments of the present application.

[0041] Referring to FIG. 1, FIG. 1 is a structural schematic diagram of a vehicle provided in an embodiment of the present application. The vehicle generally includes a plurality of regional control units. For ease of understanding, the regional control unit 100-1 in the vehicle 100 is taken as an example for illustration in FIG. 1.

[0042] In some embodiments, intelligent power distribution can be implemented by the regional control unit 100-1. For example, the regional control unit 100-1 enables a power output chip in the regional control unit 100-1 in response to a power distribution instruction for an electrical load end 100-2 in the vehicle 100; monitors a current diagnostic feedback signal of the power output chip in the regional control unit 100-1; and re-enables the power output chip in the regional control unit 100-1 when it is monitored that the current diagnostic feedback signal of the power output chip in the regional control unit 100-1 is an overcurrent shutdown fault. In this way, the impact current peak is reduced by re-enabling the power output chip in the regional control unit 100-1, the power distribution success rate is improved, and the impact current problem is solved at the software level without cost, that is, it can be implemented based on the existing hardware architecture of the vehicle 100 without modification at the hardware level.

[0043] In some embodiments, the vehicle 100 can implement the intelligent power distribution method of the vehicle provided in an embodiment of the present application by running a computer program. For example, the computer program can be a native program or a software module in an operating system; can be a native application program (APP), that is, a program that needs to be installed in an operating system to run; can be a small program, that is, a program that only needs to be downloaded into a browser environment to run; and can be a small program that can be embedded into any APP, which can be controlled by a user to run or shut down. In summary, the above computer program can be any form of application program, module or plug-in.

[0044] Referring to FIG. 2, FIG. 2 is a structural schematic diagram of the vehicle 100 provided in an embodiment of the present application. The vehicle 100 shown in FIG. 2 includes at least one processor 110, a memory 150 and at least one network interface 120. The various components in the vehicle 100 are coupled together through a bus system 140. It can be understood that the bus system 140 is used to realize the connection and communication between the components. In addition to including a data bus, the bus system 140 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, all the buses are marked as the bus system 140 in FIG. 2.

[0045] The processor 110 can be an integrated circuit chip that has the processing capability of signals, such as a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc., where the general-purpose processor can be a microprocessor or any conventional processor.

[0046] The memory 150 can be removable, non-removable, or a combination thereof. Exemplary hardware devices include solid-state memories, hard disk drives, optical disk drives, etc. The memory 150 optionally includes one or more storage devices remotely located from the processor 110 in a physical location.

[0047] The memory 150 includes volatile memory or non-volatile memory, and can also include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), and the volatile memory can be random access memory (RAM). The memory 150 described in the embodiments of the present application is intended to include any suitable type of memory.

[0048] In some embodiments, the memory 150 is capable of storing data to support various operations, examples of which include programs, modules, and data structures or subsets or supersets thereof, which are exemplarily illustrated below.

[0049] The operating system 151 includes system programs for processing various basic system services and performing hardware-related tasks, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks.

[0050] The network communication module 152 is used to communicate with other electronic devices via one or more (wired or wireless) network interfaces 120, and exemplary network interfaces 120 include Bluetooth, wireless compatibility certification (WiFi), and universal serial bus (USB), etc.

[0051] In some embodiments, the intelligent power distribution device of the vehicle provided by the embodiments of the present application can be implemented in a software manner, and FIG. 2 shows the intelligent power distribution device 155 of the vehicle stored in the memory 150, which can be software in the form of programs and plug-ins, etc., including the following software modules: a starting module 1551 and a monitoring module 1552, which are logical, and thus can be combined or further split according to the functions implemented. The functions of each module will be described below.

[0052] The application provides a smart power distribution method for a vehicle.

[0053] Referring to FIG. 3A, which is a flowchart of the smart power distribution method for the vehicle, the steps shown in FIG. 3A will be described.

[0054] In step 101, the power output chip in the area control unit is enabled in response to a power distribution instruction for a power consumption load end in the vehicle.

[0055] Here, when the power distribution instruction for the power consumption load end in the vehicle is received, the power output chip in the area control unit is enabled to provide power supply to the power consumption load end through the power supply output function provided by the power output chip.

[0056] It should be noted that the type of the power consumption load end is not limited in the application, for example, it can be a sensor, an actuator, a controller, etc.; the power consumption load end involved in the application is located in the area managed by the area control unit.

[0057] In step 102, the current diagnosis feedback signal of the power output chip is monitored.

[0058] The power output chip has a self-diagnosis function, and under the premise that the power output chip has been enabled, the power output chip performs real-time self-diagnosis processing and feeds back a current diagnosis feedback signal. In the application, the current diagnosis feedback signal includes three types, namely, over-current shutdown fault, open circuit fault and no fault (normal output), wherein the over-current shutdown fault refers to shutdown caused by the fact that the impact current in the power distribution process exceeds the maximum output capacity of the power output chip, and the open circuit fault refers to the fact that a part of the circuit is disconnected due to some reason, causing the current to be unable to pass through the part.

[0059] In step 103, when it is monitored that the current diagnosis feedback signal of the power output chip is an over-current shutdown fault, the power output chip is re-enabled.

[0060] Here, when it is monitored that the current diagnosis feedback signal of the power output chip is an over-current shutdown fault, it is considered that the impact of the impact current can be temporary, so the power output chip is re-enabled, and the current diagnosis feedback signal of the power output chip is continuously monitored, so as to solve the impact current problem and improve the power distribution success rate.

[0061] In some embodiments, after monitoring the current diagnosis feedback signal of the power output chip, the smart power distribution method for the vehicle further includes: when it is monitored that the current diagnosis feedback signal of the power output chip is an open circuit fault, recording the open circuit fault; and stopping enabling the power output chip.

[0062] Here, when the current diagnostic feedback signal of the power output chip is monitored to be an open circuit fault, the open circuit fault is recorded. Recording the open circuit fault refers to recording relevant information of the open circuit fault, such as the time of occurrence, the cause of the open circuit fault, and the like. In addition, recording the open circuit fault can refer to storing the open circuit fault (relevant information of the open circuit fault) to a local memory of the vehicle, which can reduce communication overhead, or can refer to uploading the open circuit fault to a server (cloud) for storage, which can facilitate query and does not occupy the local storage space of the vehicle, or both of the two ways can be used, which is not limited. By recording the open circuit fault, the efficiency of locating and repairing the fault by relevant personnel can be improved.

[0063] At the same time, considering that the open circuit fault is usually not a problem that can be solved at the software level, if the power output chip is re-enabled, the open circuit fault is likely to occur again, so the power output chip is stopped to avoid unnecessary resource waste.

[0064] In some embodiments, after enabling the power output chip in the regional control unit, the intelligent power distribution method of the vehicle further includes: in response to a power distribution closing instruction for the power consumption load end, stopping enabling the power output chip.

[0065] After enabling the power output chip in the regional control unit, if a power distribution closing instruction for the power consumption load end is received, it proves that the power consumption load end no longer needs power supply, so the power output chip is stopped. Through the above-mentioned manner, the power distribution can be freely turned on or off to meet the complex and changeable power distribution demand.

[0066] As shown in FIG. 3A, the embodiment of the present application enables the power output chip in the regional control unit in response to a power distribution instruction for the power consumption load end in the vehicle; monitors the current diagnostic feedback signal of the power output chip; and when the current diagnostic feedback signal of the power output chip is monitored to be an overcurrent shutdown fault, re-enables the power output chip. In this way, the power output chip is restarted by re-enabling the power output chip, so as to reduce the peak value of the impact current and improve the power distribution success rate, and the impact current problem is solved at the software level without the need for modification at the hardware level.

[0067] In some embodiments, referring to FIG. 3B, which is a flowchart of an intelligent power distribution method of a vehicle provided by an embodiment of the present application, step 101 shown in FIG. 3A can be updated to step 201, in which the power output chip in the regional control unit is enabled in response to a power distribution instruction for the power consumption load end in the vehicle, and the overcurrent shutdown times of the power output chip are initialized to zero times.

[0068] Here, when receiving the power distribution instruction for the electrical load end in the vehicle, in addition to enabling the power output chip in the area control unit, the over-current shutdown times of the power output chip are initialized to zero times, so as to accumulate the over-current shutdown times from zero times, and improve the accuracy of the over-current shutdown times.

[0069] In FIG. 3B, the step 103 shown in FIG. 3A can be implemented by steps 202 to 203.

[0070] In step 202, when the current diagnosis feedback signal of the power output chip is monitored to be an over-current shutdown fault, the over-current shutdown times of the power output chip are accumulated.

[0071] For example, after the step 201, the current diagnosis feedback signal of the power output chip is monitored to be an over-current shutdown fault for the first time, the over-current shutdown times of the power output chip are increased from zero times to one time, and so on.

[0072] In step 203, when the over-current shutdown times of the power output chip are less than or equal to the times threshold, the power output chip is re-enabled.

[0073] Here, the times threshold is preset, when the over-current shutdown times of the power output chip are less than or equal to the times threshold, it is proved that the over-current shutdown fault may be only a temporary fault, in order to avoid the function of the electrical load end affected due to power failure, therefore the power output chip is re-enabled, and the current diagnosis feedback signal of the power output chip is continued to be monitored. The times threshold can be freely set according to the actual application scene.

[0074] In FIG. 3B, after the step 202, steps 204 to 205 can also be executed.

[0075] In step 204, when the over-current shutdown times of the power output chip are greater than the times threshold, the power distribution failure fault is recorded.

[0076] When the over-current shutdown times of the power output chip are greater than the times threshold, it is proved that the probability of actual over-current is large, therefore the power distribution failure fault is recorded. The recording of the power distribution failure fault refers to recording the related information of the power distribution failure fault, such as the occurrence time, the cause of causing the power distribution failure fault, the specific value of the impact current, and the like. In addition, the recording of the power distribution failure fault can refer to storing the power distribution failure fault to the local memory of the vehicle, can also refer to uploading the power distribution failure fault to the server (cloud) for storage, or both, which are not limited. By recording the power distribution failure fault, the efficiency of the related personnel in locating and repairing the fault can be improved.

[0077] In some embodiments, the intelligent power distribution method of the vehicle further comprises: determining priorities of the power consumption load ends; determining a frequency threshold according to the priorities of the power consumption load ends; wherein the frequency threshold is positively correlated with the priorities of the power consumption load ends.

[0078] Here, priorities can be pre-divided for multiple power consumption load ends in the vehicle. For example, the priorities can include three levels of high, medium and low, the high priority corresponds to a critical power consumption load end, the critical power consumption load end is crucial for the normal operation and safety of the vehicle, and once power failure may cause the vehicle to be unable to drive or cause a safety accident, for example, the critical power consumption load end includes an engine control system, a braking system, a steering system, a safety system, etc.; the medium priority corresponds to an important power consumption load end, the important power consumption load end is used to complete important functions or tasks of the vehicle on the premise of ensuring the normal driving of the vehicle, for example, the important power consumption load end includes a communication system, a navigation system, etc.; the low priority corresponds to a general power consumption load end, which is mainly used to improve the driving experience of the driver, for example, the general power consumption load end includes a vehicle entertainment system, an air conditioning system, a lighting system, etc. Different frequency thresholds are pre-set for different priorities, the higher the priority of the power consumption load end, the greater the impact caused by power failure of the power consumption load end, and therefore a larger frequency threshold needs to be set to try to ensure power distribution success of the power consumption load end, that is, the frequency threshold is positively correlated with the priority of the power consumption load end.

[0079] Since the power consumption load end to which the power distribution instruction is directed has been determined in step 101, the corresponding frequency threshold is determined according to the priority of the power consumption load end, and the frequency threshold is used in steps 203 and 204, so that the appropriateness of the frequency threshold used is improved, and the rationality and stability of intelligent power distribution are improved, that is, for a power consumption load end with a higher priority, a larger frequency threshold is used to try to ensure that it can be powered.

[0080] In step 205, the power supply output chip is stopped.

[0081] When the record of power distribution failure fault is completed, the power supply output chip is stopped, that is, the output of the power supply output chip is turned off, to avoid actual overcurrent from causing damage to the hardware of the power consumption load end, and to improve the safety of power distribution.

[0082] As shown in FIG. 3B, when the overcurrent shutdown times of the power supply output chip are less than or equal to the frequency threshold, the power supply output chip is re-enabled; when the overcurrent shutdown times of the power supply output chip are greater than the frequency threshold, the record of power distribution failure fault is recorded, and the power supply output chip is stopped. In this way, the impact of power failure on the function of the load power consumption end and the avoidance of actual overcurrent damage to the hardware of the load power consumption end can be considered.

[0083] In some embodiments, referring to FIG. 3C, which is a flow diagram of a smart power distribution method of a vehicle according to an embodiment of the present application, after step 102 shown in FIG. 3A, steps 301-302 can be further performed.

[0084] In step 301, when it is monitored that the current diagnostic feedback signal of the power output chip is fault-free, the current diagnostic feedback signal of the power output chip is continuously monitored during the working process of the power output chip.

[0085] When it is monitored that the current diagnostic feedback signal of the power output chip is fault-free, the power output chip can work normally, at this time, the monitoring of the current diagnostic feedback signal of the power output chip can be stopped. However, it is still possible that an impulse current is suddenly generated in the case that the power output chip works normally. Therefore, the current diagnostic feedback signal of the power output chip is continuously monitored during the working process of the power output chip.

[0086] In step 302, when it is monitored that the current diagnostic feedback signal of the power output chip is an over-current shutdown fault during the working process of the power output chip, the power output chip is re-enabled.

[0087] Similarly to step 103, when it is monitored that the current diagnostic feedback signal of the power output chip is an over-current shutdown fault during the working process of the power output chip, the power output chip is re-enabled considering that the over-current shutdown fault can be only a temporary fault.

[0088] In some embodiments, the smart power distribution method of the vehicle further includes: initializing the number of over-current shutdowns of the power output chip to zero when it is monitored that the current diagnostic feedback signal of the power output chip is fault-free; the above-mentioned re-enabling of the power output chip when it is monitored that the current diagnostic feedback signal of the power output chip is an over-current shutdown fault during the working process of the power output chip can be implemented in the following manner: when it is monitored that the current diagnostic feedback signal of the power output chip is an over-current shutdown fault during the working process of the power output chip, the number of over-current shutdowns of the power output chip is accumulated; and when the number of over-current shutdowns of the power output chip is less than or equal to a threshold number of times, the power output chip is re-enabled.

[0089] When it is monitored that the current diagnostic feedback signal of the power output chip is fault-free, it is proved that the power output chip can work normally, and the impulse current problem needs to be solved starting from the time when the power output chip begins to work normally. Therefore, the number of over-current shutdowns of the power output chip is initialized to zero to avoid the adverse effects of the previously accumulated number of over-current shutdowns.

[0090] When it is monitored in the working process of the power output chip that the current diagnosis feedback signal of the power output chip is an over-current shutdown fault, the number of over-current shutdowns of the power output chip is accumulated. When the number of over-current shutdowns of the power output chip is less than or equal to a number threshold, the power output chip is re-enabled, thereby improving the power distribution success rate.

[0091] In some embodiments, after the number of over-current shutdowns of the power output chip is accumulated, the intelligent power distribution method of the vehicle further includes: when the number of over-current shutdowns of the power output chip is greater than the number threshold, recording a power distribution failure fault; and stopping enabling the power output chip.

[0092] In some embodiments, after continuing to monitor the current diagnosis feedback signal of the power output chip in the working process of the power output chip, the intelligent power distribution method of the vehicle further includes: when it is monitored in the working process of the power output chip that the current diagnosis feedback signal of the power output chip is an open-circuit fault, recording an open-circuit fault; and stopping enabling the power output chip.

[0093] As shown in FIG. 3C, when it is monitored that the current diagnosis feedback signal of the power output chip is no fault, the embodiment of the present application continues to monitor the current diagnosis feedback signal of the power output chip in the working process of the power output chip, and when it is monitored that the current diagnosis feedback signal of the power output chip is an over-current shutdown fault, the power output chip is re-enabled. In this way, the intelligent power distribution not only covers the starting stage of the power output chip, but also covers the normal working stage of the power output chip, that is, the intelligent power distribution is realized in the whole process, thereby further improving the power distribution success rate.

[0094] In some embodiments, referring to FIG. 3D, which is a flowchart of an intelligent power distribution method of a vehicle provided by an embodiment of the present application, step 103 shown in FIG. 3A can be implemented by steps 401 and 402.

[0095] In step 401, when it is monitored that the current diagnosis feedback signal of the power output chip is an over-current shutdown fault, waiting processing is performed and the waiting duration is accumulated.

[0096] Here, when it is monitored that the current diagnosis feedback signal of the power output chip is an over-current shutdown fault, waiting processing is performed and the waiting duration is accumulated (accumulated from zero), wherein the purpose of the waiting processing is to wait for the power output chip to complete chip restart, software configuration, state determination and the like.

[0097] It is worth mentioning that if the enable instruction (used to enable the power output chip) is sent to the power output chip immediately when the power output chip generates the over-current shutdown fault, the power output chip can not execute the enable instruction due to its own reasons (for example, the restart is not successful), and therefore the waiting mechanism is used in the embodiment of the present application to solve this problem.

[0098] In step 402, when the waiting duration reaches the target interval duration, the power output chip is re-enabled.

[0099] Here, when the waiting duration reaches the target interval duration, it is considered that the power output chip has completed the chip restart, software configuration, state determination and the like, and therefore the power output chip is re-enabled, so that the operation of re-enabling can be effectively executed. The target interval duration can be pre-set according to the specific situation of the power output chip, for example, set to 150 ms.

[0100] As shown in FIG. 3D, when the current diagnosis feedback signal of the power output chip is monitored to be the over-current shutdown fault, the embodiment of the present application performs the waiting processing and accumulates the waiting duration, and re-enables the power output chip when the waiting duration reaches the target interval duration. In this way, sufficient time is reserved for the power output chip to complete the chip restart, software configuration, state determination and the like, and it is ensured that the power output chip can be re-enabled.

[0101] Next, an exemplary application of the embodiment of the present application in an actual application scenario will be described. The embodiment of the present application divides the intelligent power distribution working mode into four modes, namely, intelligent power distribution off mode, intelligent power distribution start mode, intelligent power distribution fault mode and intelligent power distribution normal output mode. As an example, the embodiment of the present application provides a flowchart of an intelligent power distribution method of a vehicle as shown in FIG. 4 and a switching diagram between the four modes as shown in FIG. 5, which will be described in combination with FIG. 4 and FIG. 5.

[0102] Step 1: When the area control unit judges that the intelligent power distribution needs to be implemented (for example, receives the power distribution instruction for the power load end in the vehicle), the area control unit enters the intelligent power distribution start mode and clears the over-current shutdown counter.

[0103] Step 2: The area control unit enables the power output chip through the serial peripheral interface (SPI) bus and monitors the current diagnosis feedback signal of the power output chip in real time.

[0104] Step 3: If the current diagnosis feedback signal of the power output chip is the over-current shutdown fault, step 4 is executed; if the current diagnosis feedback signal of the power output chip is no fault, step 5 is executed.

[0105] Step 4: The region control unit increments the over-current shutdown counter, and then determines whether the over-current shutdown counter exceeds a threshold number of times (e.g., 5 times). If the threshold number of times is exceeded, step 6 is performed. If the threshold number of times is not exceeded, step 2 is performed. Before performing step 2, a 150 ms delay is required, where 150 ms = 100 ms for the power output chip to restart + 30 ms for the power output chip to be configured by software + 20 ms for the power output chip to be determined.

[0106] Step 5: The region control unit determines that the intelligent power distribution is correctly started, and enters the intelligent power distribution normal output mode from the intelligent power distribution start mode, and clears the over-current shutdown counter. In the intelligent power distribution normal output mode, the region control unit monitors the current diagnosis feedback signal of the power output chip in real time. If the current diagnosis feedback signal of the power output chip is an over-current shutdown fault, step 4 is performed. If the current diagnosis feedback signal of the power output chip is no fault, the current state is maintained. In addition, when a power distribution shutdown instruction is received in the intelligent power distribution normal output mode, step 7 is performed.

[0107] Step 6: The region control unit enters the intelligent power distribution fault mode, records a power distribution failure fault in the intelligent power distribution fault mode, and then performs step 7.

[0108] Step 7: The region control unit enters the intelligent power distribution shutdown mode, and shuts down the output of the power output chip in the intelligent power distribution shutdown mode.

[0109] The embodiments of the present application also provide a mode-control logic relationship as shown in Table 1.

[0110] Table 1: Mode-control logic table

[0111] It is worth noting that the open output in Table 1 refers to the region control unit enabling the power output chip to open the output of the power output chip, and the closed output is the same.

[0112] The embodiments of the present application can at least achieve the following technical effects:

[0113] 1) The intelligent power distribution full process is divided into four modes, so as to independently design the control logic for each mode without affecting the performance of the intelligent power distribution function, and to make the intelligent power distribution system design more modular.

[0114] 2) The over-current restart method is used to reduce the peak value of the impact current, and the impact current problem is solved at the software level without the need to change the vehicle hardware architecture.

[0115] 3) When an over-current shutdown fault occurs, a 150 ms interval 5 times over-current restart function is defined, which takes into account the impact of power failure on the load function and avoids actual over-current damage to the hardware.

[0116] 4) In the normal output mode of intelligent power distribution, the current diagnostic feedback signal of the power output chip is still monitored in real time, and overcurrent protection and impact current avoidance are realized in the whole power distribution process.

[0117] The following continues to illustrate the exemplary structure of the intelligent power distribution device 155 of the vehicle provided by the embodiments of the application, which is implemented as a software module. In some embodiments, as shown in FIG. 2, the software module stored in the intelligent power distribution device 155 of the vehicle in the memory 150 can include: an enabling module 1551 configured to enable the power output chip in the regional control unit in response to a power distribution instruction for the power load end in the vehicle; a monitoring module 1552 configured to monitor the current diagnostic feedback signal of the power output chip; and the enabling module 1551 is further configured to re-enable the power output chip when it is monitored that the current diagnostic feedback signal of the power output chip is an overcurrent shutdown fault.

[0118] In some embodiments, the enabling module 1551 is further configured to: initialize the number of overcurrent shutdowns of the power output chip to zero in response to the power distribution instruction for the power load end; accumulate the number of overcurrent shutdowns of the power output chip when it is monitored that the current diagnostic feedback signal of the power output chip is an overcurrent shutdown fault; and re-enable the power output chip when the number of overcurrent shutdowns of the power output chip is less than or equal to a threshold number.

[0119] In some embodiments, the intelligent power distribution device 155 of the vehicle further includes a failure module configured to: record a power distribution failure when the number of overcurrent shutdowns of the power output chip is greater than the threshold number; and the intelligent power distribution device 155 of the vehicle further includes a closing module configured to: stop enabling the power output chip.

[0120] In some embodiments, the failure module is further configured to perform at least one of the following processes: store the power distribution failure to a local memory of the vehicle; and send the power distribution failure to a server to enable the server to store the power distribution failure.

[0121] In some embodiments, the intelligent power distribution device 155 of the vehicle further includes a threshold determination module configured to: determine the priority of the power load end; and determine the threshold number according to the priority of the power load end; wherein the threshold number is positively correlated with the priority of the power load end.

[0122] In some embodiments, the intelligent power distribution device 155 of the vehicle further includes a normal output module configured to: continue to monitor the current diagnostic feedback signal of the power output chip in the working process of the power output chip when it is monitored that the current diagnostic feedback signal of the power output chip is fault-free; and the enabling module 1551 is further configured to re-enable the power output chip when it is monitored that the current diagnostic feedback signal of the power output chip is an overcurrent shutdown fault in the working process of the power output chip.

[0123] In some embodiments, the normal output module is further configured to initialize the over-current shutdown times of the power output chip to zero when it is monitored that the current diagnosis feedback signal of the power output chip is fault-free; the starting module 1551 is further configured to accumulate the over-current shutdown times of the power output chip when it is monitored that the current diagnosis feedback signal of the power output chip is over-current shutdown fault during the working process of the power output chip; and the power output chip is re-enabled when the over-current shutdown times of the power output chip is less than or equal to the threshold number of times.

[0124] In some embodiments, the intelligent power distribution device 155 of the vehicle further comprises a fault module configured to record a power distribution failure fault when the over-current shutdown times of the power output chip is greater than the threshold number of times; and the intelligent power distribution device 155 of the vehicle further comprises a closing module configured to stop enabling the power output chip.

[0125] In some embodiments, the starting module 1551 is further configured to perform a waiting process and accumulate the waiting duration when it is monitored that the current diagnosis feedback signal of the power output chip is over-current shutdown fault; and the power output chip is re-enabled when the waiting duration reaches the target interval duration.

[0126] In some embodiments, the intelligent power distribution device 155 of the vehicle further comprises a fault module configured to record an open-circuit fault when it is monitored that the current diagnosis feedback signal of the power output chip is open-circuit fault; and the intelligent power distribution device 155 of the vehicle further comprises a closing module configured to stop enabling the power output chip.

[0127] In some embodiments, the intelligent power distribution device 155 of the vehicle further comprises a closing module configured to stop enabling the power output chip in response to a power distribution closing instruction for the power load end.

[0128] The embodiments of the present application provide a computer program product or a computer program, which comprises executable instructions stored in a computer readable storage medium. The processor of the electronic device reads the executable instructions from the computer readable storage medium, and the processor executes the executable instructions, so that the electronic device implements the intelligent power distribution method of the vehicle provided by the embodiments of the present application.

[0129] The embodiments of the present application provide a computer readable storage medium storing executable instructions, wherein the executable instructions are stored in the computer readable storage medium, and when the executable instructions are executed by the processor, the processor will implement the intelligent power distribution method of the vehicle provided by the embodiments of the present application.

[0130] In some embodiments, the computer-readable storage media can be a memory such as a FRAM, a ROM, a PROM, an EPROM, an EEPROM, a flash memory, a magnetic surface memory, an optical disk, or a CD-ROM, etc. It can also be various devices including one or any combination of the above memories.

[0131] In some embodiments, the executable instructions can be in the form of a program, software, a software module, a script, or code, written in any form of programming language, including compiled or interpreted languages, or declarative or procedural languages, and it can be deployed in any form, including as a stand-alone program or as a module, component, subroutine, or other unit suitable for use in a computing environment.

[0132] As an example, the executable instructions can, but need not, correspond to a file in a file system. The executable instructions can be stored in a portion of a file that holds other programs or data, for example, one or more scripts stored in a markup language document, in a single file dedicated to the program in question, or in multiple coordinated files, for example, files that store one or more modules, sub programs, or portions of code.

[0133] As an example, the executable instructions can be deployed to be executed on one electronic device or on multiple electronic devices that are located at one site or that are distributed across multiple sites and that are interconnected by a communication network.

[0134] The above merely describes the embodiments of the present application, but is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, and improvement within the spirit and scope of the present application shall be included in the protection scope of the present application.

Claims

1. An intelligent power distribution method for a vehicle, characterized by, A zone control unit applied in the vehicle; the method comprises: in response to the power distribution instruction for the electrical load end in the vehicle, enabling the power output chip in the zone control unit; monitoring the current diagnostic feedback signal of the power output chip; when the current diagnostic feedback signal of the power output chip is monitored as an over-current shutdown fault, re-enabling the power output chip.

2. The method of claim 1, wherein, The method further comprises: in response to the power distribution instruction for the electrical load end, initializing the over-current shutdown times of the power output chip to zero times; when the current diagnostic feedback signal of the power output chip is monitored as an over-current shutdown fault, re-enabling the power output chip, comprising: when the current diagnostic feedback signal of the power output chip is monitored as an over-current shutdown fault, cumulative processing is performed on the over-current shutdown times of the power output chip; when the over-current shutdown times of the power output chip are less than or equal to the times threshold, re-enabling the power output chip.

3. The method of claim 2, wherein, After the cumulative processing of the over-current shutdown times of the power output chip, the method further comprises: when the over-current shutdown times of the power output chip are greater than the times threshold, recording a power distribution failure fault; stopping enabling the power output chip.

4. The method of claim 3, wherein, The recording of the power distribution failure fault comprises: performing at least one of the following processing: storing the power distribution failure fault to the local memory of the vehicle; sending the power distribution failure fault to the server to enable the server to store the power distribution failure fault.

5. The method of claim 2, wherein, The method further comprises: determining the priority of the electrical load end; determining the times threshold according to the priority of the electrical load end; wherein the times threshold is positively correlated with the priority of the electrical load end.

6. The method of claim 1, wherein, The method further comprises: when the current diagnostic feedback signal of the power output chip is monitored as no fault, continuing to monitor the current diagnostic feedback signal of the power output chip during the working process of the power output chip; when the current diagnostic feedback signal of the power output chip is monitored as an over-current shutdown fault during the working process of the power output chip, re-enabling the power output chip.

7. The method of claim 6, wherein, The method further comprises: when the current diagnostic feedback signal of the power output chip is monitored as no fault, initializing the over-current shutdown times of the power output chip to zero times; when the current diagnostic feedback signal of the power output chip is monitored as an over-current shutdown fault during the working process of the power output chip, re-enabling the power output chip, comprising: when the current diagnostic feedback signal of the power output chip is monitored as an over-current shutdown fault during the working process of the power output chip, cumulative processing is performed on the over-current shutdown times of the power output chip; when the over-current shutdown times of the power output chip are less than or equal to the times threshold, re-enabling the power output chip.

8. The method of claim 7, wherein, After the cumulative processing of the over-current shutdown times of the power output chip, the method further comprises: when the over-current shutdown times of the power output chip are greater than the times threshold, recording a power distribution failure fault; stopping enabling the power output chip.

9. The method of claim 1, wherein, The re-enabling the power output chip when the current diagnostic feedback signal of the power output chip is monitored as an over-current shutdown fault comprises: When the current diagnostic feedback signal of the power output chip is monitored as an over-current shutdown fault, a waiting process is performed and a waiting time length is accumulated; When the waiting time length reaches a target interval length, the power output chip is re-enabled.

10. The method of claim 1, wherein, After the current diagnostic feedback signal of the power output chip is monitored, the method further comprises: When the current diagnostic feedback signal of the power output chip is monitored as an open-circuit fault, an open-circuit fault is recorded; The power output chip is stopped from being enabled.

11. The method of claim 1, wherein, After the power output chip in the area control unit is enabled, the method further comprises: In response to a power distribution closing instruction for the power consumption load end, the power output chip is stopped from being enabled.

12. An intelligent power distribution device for a vehicle, comprising: An area control unit applied to the vehicle; the device comprises: A starting module, configured to enable a power output chip in the area control unit in response to a power distribution instruction for a power consumption load end in the vehicle; A monitoring module, configured to monitor a current diagnostic feedback signal of the power output chip; The starting module is further configured to re-enable the power output chip when the current diagnostic feedback signal of the power output chip is monitored as an over-current shutdown fault.

13. A vehicle characterized by comprising: Comprise: A memory, configured to store executable instructions; A processor, configured to execute the executable instructions stored in the memory to implement the method in any one of claims 1 to 11.

14. A computer-readable storage medium, characterized in that, Executable instructions are stored, configured to be executed by a processor to implement the method in any one of claims 1 to 11.

15. A computer program product, characterised in that, Executable instructions are stored, configured to be executed by a processor to implement the method in any one of claims 1 to 11.

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