An unmanned vehicle power supply system and method

Abstract

The application discloses an unmanned vehicle power supply system and method. The system comprises a hibernation control module connected with a main control module, which is used to send a first instruction to the main control module according to a dynamic clock cycle; the main control module is connected with a low-voltage power consumption module, which is used to start based on the first instruction and send a second instruction to the low-voltage power consumption module, so that the low-voltage power consumption module starts according to the second instruction; the main control module is connected with a low-voltage power supply module, which is used to detect the voltage of the low-voltage power supply module after the low-voltage power consumption module starts, compare the detected voltage value with a first dynamic voltage threshold value, and charge the low-voltage power supply module through a high-voltage power supply module if the voltage value is less than the first dynamic voltage threshold value. The technical scheme can improve the reliability of detecting the power of the low-voltage power supply module in the autonomous vehicle and save the detection cost by periodically starting the detection of the low-voltage power supply module in the unmanned vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of unmanned vehicle battery management, and particularly relates to an unmanned vehicle power supply system and method. BACKGROUND

[0002] The low-voltage storage battery will be discharged if the unmanned vehicle is parked for a long time or does not work, so that the vehicle cannot be started.

[0003] Currently, in order to prevent the discharge of the unmanned vehicle, a storage battery sensor is added. The storage battery sensor is used to monitor the power of the low-voltage storage battery.

[0004] The cost is high and the detection reliability is low when the storage battery sensor is used to monitor the power of the low-voltage storage battery. SUMMARY

[0005] The present application provides an unmanned vehicle power supply system and method, which periodically starts to detect the voltage of the low-voltage power supply module to complete the charging of the low-voltage power supply module, thereby saving cost and improving detection reliability.

[0006] According to an aspect of the present application, an unmanned vehicle power supply system is provided, which comprises a sleep control module, a main control module, a high-voltage power supply module and a low-voltage power supply module; wherein the main control module is in a sleep state in a vehicle power-off state;

[0007] The sleep control module is connected with the main control module and is used to send a first instruction to the main control module according to a dynamic clock period;

[0008] The main control module is connected with the low-voltage power module and is used to start based on the first instruction and send a second instruction to the low-voltage power module, so that the low-voltage power module starts according to the second instruction;

[0009] The main control module is connected with the low-voltage power supply module and is used to detect the voltage of the low-voltage power supply module after the low-voltage power module starts, compare the detected voltage value with a first dynamic voltage threshold value, and charge the low-voltage power supply module through the high-voltage power supply module if the voltage value is less than the first dynamic voltage threshold value.

[0010] According to another aspect of the present application, an unmanned vehicle power supply method is provided, which comprises:

[0011] The main control module receives a first instruction sent by the sleep control module according to a dynamic clock period;

[0012] start based on the first instruction, and send a second instruction to the low-voltage power module to enable the low-voltage power module to start according to the second instruction;

[0013] After the low-voltage power module starts, the voltage of the low-voltage power module is detected, and the detected voltage value is compared with the first dynamic voltage threshold value. If the voltage value is less than the first dynamic voltage threshold value, the low-voltage power module is charged by the high-voltage power module.

[0014] The technical scheme of the embodiment of the application, the hibernation control module is connected with the main control module, and is used to send a first instruction to the main control module according to a dynamic clock period; the main control module is connected with the low-voltage power module, and is used to start based on the first instruction, and send a second instruction to the low-voltage power module to enable the low-voltage power module to start according to the second instruction; the main control module is connected with the low-voltage power module, and is used to detect the voltage of the low-voltage power module after the low-voltage power module starts, and compare the detected voltage value with the first dynamic voltage threshold value. If the voltage value is less than the first dynamic voltage threshold value, the low-voltage power module is charged by the high-voltage power module. The technical scheme can save cost and improve detection reliability by periodically starting the main control module to detect the voltage of the low-voltage power module to charge the low-voltage power module.

[0015] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the application, nor is it used to limit the scope of the application. Other features of the application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a schematic diagram of an unmanned vehicle power supply system provided by the first embodiment of the application;

[0018] Figure 2 is a flowchart of a power-consuming device determination process provided by the first embodiment of the application;

[0019] Figure 3 is a flowchart of a low-voltage power module charging process provided by the first embodiment of the application;

[0020] Figure 4 is a flowchart of an unmanned vehicle power supply method provided by the second embodiment of the application. DETAILED DESCRIPTION

[0021] In order to better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of the present application.

[0022] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above-mentioned accompanying drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units need not be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0023] Embodiment one

[0024] Figure 1 is a schematic diagram of an unmanned vehicle power supply system according to the embodiment one of the present application, as shown in the figure, the system comprises: a hibernation control module 110, a main control module 120, a high-voltage power supply module 130 and a low-voltage power supply module 140; wherein the main control module 120 is in a hibernation state in the vehicle power-off state; Figure 1

[0025] The hibernation control module 110 is connected with the main control module 120, and is configured to send a first instruction to the main control module 120 according to a dynamic clock cycle;

[0026] The main control module 120 is connected with the low-voltage power module 150, and is configured to start based on the first instruction, and send a second instruction to the low-voltage power module 150, so that the low-voltage power module 150 starts according to the second instruction;

[0027] The main control module 120 is connected with the low-voltage power supply module 140, and is configured to detect the voltage of the low-voltage power supply module 140 after the low-voltage power module 150 starts, and compare the detected voltage value with a first dynamic voltage threshold value, if the voltage value is less than the first dynamic voltage threshold value, the low-voltage power supply module 140 is charged through the high-voltage power supply module 130.​

[0028] In the present scheme, the sleep control module 110 is part of the main control module 120, and has very low power consumption, and is used to wake up the main control module 120 in the sleep state through a dynamic clock cycle. In this scheme, the clock cycle of the sleep control module 110 is constantly changing.

[0029] In the present embodiment, the first instruction can be composed of letters, numbers or strings, and is used to wake up the main control module 120.

[0030] In the present embodiment, the low-voltage power module 150 can be a daytime running lamp, a position lamp, a vehicle-mounted fan, a sensor module, an advertising screen, a vehicle body atmosphere lamp or a voice speaker on the unmanned vehicle. The rated power of different low-voltage power modules 150 can be the same or different. The low-voltage power module 150 is in a sleep state in the vehicle power-off state.

[0031] In the present scheme, the second instruction can also be composed of letters, numbers or strings, and is used to wake up the low-voltage power module 150.

[0032] In the present embodiment, the low-voltage power supply module 140 can be a low-voltage storage battery, and is used to supply power to the low-voltage power module 150.

[0033] Specifically, the main control module 120 and the low-voltage power module 150 are connected through a signal line; the main control module 120 and the low-voltage power supply module 140 are connected through a wire. The voltage values at both ends of the main control module 120 and the low-voltage power supply module 140 are the same.

[0034] In the present embodiment, the first dynamic voltage threshold value can be set according to the charging demand of the low-voltage power supply module 140. The first dynamic voltage threshold value in different clock cycles can be the same or different.

[0035] Further, after the unmanned vehicle is powered off, the main control module 120 and the low-voltage power module 150 are in a sleep state. The sleep control module 110 in the main control module 120 wakes up the main control module 120 through a clock cycle, and the main control module 120 starts to control the low-voltage power module 150 to start, and detects the voltage at both ends of the low-voltage power supply module 140, or can detect the voltage at both ends of the main control module 120. If the detected voltage value is lower than the first dynamic voltage threshold value, it means that the power of the low-voltage power supply module 140 is low at this time, and the low-voltage power supply module 140 can be charged by the high-voltage power supply module 130. The voltage value can be the lowest voltage value at both ends of the low-voltage power supply module 140.

[0036] Wherein, since the voltage of the low-voltage power supply module 140 is not accurate when the low-voltage power consumption module 150 is not started, which may affect the detection result, therefore, the main control module 120 needs to control the low-voltage power consumption module 150 to start and then detect the voltage across the low-voltage power supply module 140. The detection of the low-voltage power supply module 140 through driving the low-voltage power consumption module 150 can avoid the influence of the false voltage on the detection result, thereby improving the reliability of the detection.

[0037] In the embodiment, after the charging is completed, the main control module 120 controls the unmanned vehicle to power off and enter the sleep state, and the sleep control module 110 re-timers.

[0038] In the scheme, an unmanned vehicle power supply system can be installed at various positions of the unmanned vehicle according to the needs, for example, an unmanned vehicle power supply system can be installed on the chassis of the unmanned vehicle.

[0039] Optionally, the sleep control module 110 is further configured to:

[0040] When the voltage of the low-voltage power supply module 140 is greater than a second dynamic voltage threshold, the next clock cycle is increased, and the second dynamic voltage threshold is higher than the first dynamic voltage threshold.

[0041] Wherein, the second dynamic voltage threshold can be set according to the charging demand of the low-voltage power supply module 140. The second dynamic voltage threshold in different clock cycles can be the same or different.

[0042] In the embodiment, when the voltage of the low-voltage power supply module 140 is greater than the second dynamic voltage threshold, the power of the low-voltage power supply module 140 is higher, and at this time, the next clock cycle can be increased, that is, the detection period of the low-voltage power supply module 140 is extended.

[0043] By setting the second dynamic voltage threshold to adjust the next clock cycle, dynamic detection of the low-voltage power supply module in the unmanned vehicle power supply system can be realized, and the detection reliability can be improved, and the detection cost can be saved.

[0044] Optionally, the low-voltage power consumption module 150 includes a first power consumption device and a second power consumption device, and the main control module 120 is further configured to:

[0045] Obtain the ambient temperature, when the ambient temperature is lower than a temperature threshold, the first dynamic voltage threshold is reduced or the first power consumption device is selected to start, and the rated power of the first power consumption device is less than the rated power of the second power consumption device.

[0046] In the embodiment, the ambient temperature in the current clock cycle can be obtained through a sensor or through real-time weather data.

[0047] The temperature threshold can be set according to the degree of influence of temperature on the low-voltage power supply module 140 in the unmanned vehicle power supply system.

[0048] In this solution, when the ambient temperature is below the temperature threshold, the voltage detected by the low-voltage power supply module 140 with the same remaining power may be relatively low. At this time, the first dynamic voltage threshold can be reduced, that is, the low-voltage power supply module 140 is charged only when the voltage of the low-voltage power supply module 140 is low enough, thereby reducing the number of times the low-voltage power supply module 140 is charged and avoiding the occurrence of the low-voltage power supply module 140 being depleted.

[0049] In this embodiment, when the ambient temperature is below the temperature threshold, the voltage detected by the low-voltage power supply module 140 with the same remaining power may be relatively low. At this time, the first electrical device in the low-voltage power module 150 can be selected to start. The rated power of the first electrical device is less than the rated power of the second electrical device, that is, the rated power of the low-voltage power module 150 is reduced. Using an electrical device with a relatively lower rated power for voltage detection in a low-temperature environment can improve the accuracy of power estimation and reduce the power consumption of the low-voltage power supply module 140, thereby avoiding the occurrence of power depletion in the low-voltage power supply module 140.

[0050] By adjusting the first dynamic voltage threshold or selecting which electrical equipment to start based on the ambient temperature, the number of times the low-voltage power supply module needs to be charged can be reduced, as can the power consumption of the low-voltage power supply module, thereby increasing the service life of the low-voltage power supply module of the autonomous vehicle.

[0051] Optionally, the low-voltage power module 150 includes a third power device, and the main control module 120 is further used for:

[0052] Record the current position of the unmanned vehicle before power-off. After the main control module 120 starts based on the first instruction, select the third electrical device to start according to the current position.

[0053] In this embodiment, the current position of the autonomous vehicle before power-off can be obtained based on detection equipment installed on the vehicle, or it can be obtained based on a position sensor. The current position can be represented by coordinates or latitude and longitude, and the possibility of human-machine interaction with the autonomous vehicle can be determined based on the current position.

[0054] Specifically, after the main control module 120 starts based on the first instruction, it can control the third electrical equipment of the low-voltage power module 150 to start according to the current position of the unmanned vehicle before power-off.

[0055] In this embodiment, Figure 2 This is a flowchart of the process for determining the electrical equipment provided in Embodiment 1 of this application, such as...Figure 2 As shown, first record the current position of the unmanned vehicle before power-off; the main control module receives the first instruction sent by the sleep control module according to the dynamic clock period; after the main control module starts based on the first instruction, the third power equipment is selected to start according to the current position, so as to maximize the user's demand, avoid unnecessary power equipment, and improve the utilization rate of power equipment on the unmanned vehicle.

[0056] Optionally, when the current position is an area outside the parking lot, the third power equipment is at least one of an advertising screen, a vehicle atmosphere lamp or a voice loudspeaker.

[0057] In this embodiment, the current position can be an area outside the parking lot, such as a cell, a municipal street, a scenic area, etc. For example, when the current position of the unmanned vehicle before power-off is in a scenic area, the third power equipment can be an advertising screen, and the play facilities in the scenic area can be promoted based on the advertising screen.

[0058] Optionally, the main control module 120 is further used for:

[0059] obtaining the ambient temperature, and when the ambient temperature is lower than a temperature threshold, reducing the first dynamic voltage threshold or selecting the power equipment with the lowest rated power in the third power equipment to start.

[0060] In this embodiment, when the ambient temperature is lower than the temperature threshold, the voltage detected by the low-voltage power supply module 140 at the same remaining power can be relatively low, and at this time, the power equipment with the lowest rated power in the third power equipment can be selected to start, that is, the rated power of the low-voltage power supply module 150 is reduced. In a low-temperature environment, using the power equipment with relatively low rated power for voltage detection can improve the accuracy of power estimation, and at the same time, the consumption of the low-voltage power supply module 140 can be reduced, so as to avoid the situation that the low-voltage power supply module 140 is out of power.

[0061] By selecting the power equipment to start through the ambient temperature, the consumption of the low-voltage power supply module can be relatively reduced, so as to prolong the use time of the low-voltage power supply module of the unmanned vehicle.

[0062] Optionally, the main control module 120 is further used for:

[0063] When the voltage value is less than the first dynamic voltage threshold, the SOC of the high-voltage power supply module 130 and the probability of power-on within a predetermined time at the current time are obtained, and when the SOC of the high-voltage power supply module 130 is greater than the first high-voltage power supply module threshold, the charging duration is determined based on the probability of power-on within a predetermined time at the current time.

[0064] When the SOC of the high-voltage power supply module 130 is less than the first high-voltage power supply module threshold, it is determined whether to charge based on the probability of powering on within a predetermined time at the current time.

[0065] The SOC (State of Charge) of the high-voltage power supply module 130 is used to reflect the remaining power of the high-voltage power supply module 130.

[0066] In this embodiment, the probability of powering on within a predetermined time at the current time can refer to the probability of the unmanned vehicle powering on within a predetermined time at the current time. For example, if the probability of the unmanned vehicle powering on within a predetermined time at the current time is 90%, it can be concluded that the probability of the unmanned vehicle powering on within a predetermined time at the current time is relatively high. The predetermined time can be 1 hour or other specified time.

[0067] Further, the charging duration of the low-voltage power supply module 140 can be set based on the probability of powering on within a predetermined time at the current time. For example, in the case where the probability of powering on within a predetermined time at the current time is relatively high, the charging duration of the low-voltage power supply module 140 can be appropriately shortened; in the case where the probability of powering on within a predetermined time at the current time is relatively low, the charging duration of the low-voltage power supply module 140 can be appropriately extended. That is, the charging duration of the low-voltage power supply module 140 can be dynamically set.

[0068] The first high-voltage power supply module threshold can be set according to the power requirement of the high-voltage power supply module 130.

[0069] In the present scheme, when the voltage value is less than the first dynamic voltage threshold value, at this time the power of the low-voltage power supply module 140 is low, it is necessary to consider starting the high-voltage power supply module 130 to charge the low-voltage power supply module 140. In the present embodiment, when the SOC of the high-voltage power supply module 130 is greater than the first high-voltage power supply module threshold value, at this time the remaining power of the high-voltage power supply module 130 is relatively large, the low-voltage power supply module 140 can be charged based on the high-voltage power supply module 130. When the SOC of the high-voltage power supply module 130 is less than the first high-voltage power supply module threshold value, at this time the remaining power of the high-voltage power supply module 130 and the low-voltage power supply module 140 is low, based on the comprehensive consideration of vehicle operation and power battery life maintenance, whether to charge the low-voltage power supply module 140 is determined according to the probability of power-on within a predetermined time at the current time. For example, when the probability of power-on within a predetermined time at the current time is relatively large, the unmanned vehicle will probably power on or run to the charging device to charge the whole vehicle within the predetermined time, at this time the low-voltage power supply module 140 can not be charged at the current time, which can prevent the remaining power of the high-voltage power supply module 130 from being further reduced, and avoid the relatively higher cost high-voltage power supply module 130 from being degraded. When the probability of power-on within a predetermined time at the current time is relatively small, the unmanned vehicle will not automatically power on within the predetermined time, at this time the low-voltage power supply module 140 can be charged at the current time to prevent the low-voltage power supply module voltage from being too low to start the unmanned vehicle after a long time.

[0070] Further, Figure 3 is a flowchart of the low-voltage power supply module charging process provided by the embodiment one of the present application, as Figure 3 shown, the SOC of the high-voltage power supply module 130 and the probability of power-on within a predetermined time at the current time are obtained; when the SOC of the high-voltage power supply module 130 is greater than the first high-voltage power supply module threshold value, the low-voltage power supply module 140 is charged based on the high-voltage power supply module 130, and the charging time is determined based on the probability of power-on within a predetermined time at the current time. When the SOC of the high-voltage power supply module 130 is less than the first high-voltage power supply module threshold value, whether to charge is determined based on the probability of power-on within a predetermined time at the current time; if the low-voltage power supply module 140 is charged at the current time, the low-voltage power supply module 140 is charged based on the high-voltage power supply module 130, and the charging time is determined based on the probability of power-on within a predetermined time at the current time.

[0071] The confirmation of the charging time of the low-voltage power supply module and whether to charge can balance the remaining power of the high-voltage and low-voltage power supply modules, and reduce the energy consumption of the unmanned vehicle operation.

[0072] Optionally, the probability of power-on within a predetermined time at the current time is obtained based on the cumulative power-off time of historical data and the statistical probability of the current time point.

[0073] The accumulated power-off duration of the historical data can be obtained based on a detection device of the unmanned vehicle.

[0074] In the embodiment, the statistical probability of the current time point can be statistically obtained based on a detection algorithm preset by the unmanned vehicle.

[0075] In the scheme, the probability of power-on within a predetermined time at the current time can be determined by comprehensively considering the accumulated power-off duration of the historical data and the statistical probability of the current time point. The current time point is a current time point in 24 hours of a day, for example, the current time point is 1 o'clock in the morning, and the probability of power-on of the unmanned vehicle within an hour in the future at the current time point is low. The power-on probability within a predetermined time at the current time point is obtained based on the historical data and manual calibration. Specifically, the probability of power-on within a predetermined time at the current time can be determined by weighting and combining the accumulated power-off duration of the historical data and the statistical probability of the current time point. For example, when the accumulated power-off duration of the historical data is long and the statistical probability of the current time point is large, the probability of power-on within a predetermined time at the current time is large.

[0076] Based on the probability of power-on within a predetermined time at the current time, the charging duration of the low-voltage power supply module and whether to charge are confirmed, which can avoid repeated charging of the low-voltage power supply module of the unmanned vehicle, thereby reducing the energy consumption of the unmanned vehicle operation.

[0077] The technical scheme of the embodiment of the application, the hibernation control module is connected with the main control module, and is used for sending a first instruction to the main control module according to a dynamic clock period; the main control module is connected with the low-voltage power consumption module, and is used for starting based on the first instruction, and sending a second instruction to the low-voltage power consumption module, so that the low-voltage power consumption module starts according to the second instruction; the main control module is connected with the low-voltage power supply module, and is used for detecting the voltage of the low-voltage power supply module after the low-voltage power consumption module starts, and comparing the detected voltage value with a first dynamic voltage threshold value, and if the voltage value is less than the first dynamic voltage threshold value, charging the low-voltage power supply module by the high-voltage power supply module. By executing the technical scheme, the voltage of the low-voltage power supply module is periodically detected by the main control module to complete the charging of the low-voltage power supply module, which can save cost and improve detection reliability.

[0078] Embodiment two

[0079] Figure 4 A flowchart of an unmanned vehicle power supply method provided by the embodiment two of the application. The embodiment can be applicable to the case of detecting the power of the low-voltage power supply module in the unmanned vehicle, and the method can be executed by an unmanned vehicle power supply system. Figure 4 As shown in the figure, the method comprises:

[0080] S410, receiving, by the main control module, a first instruction sent by the hibernation control module according to a dynamic clock period.

[0081] In the scheme, the sleep control module is part of the main control module, and the power consumption is extremely low, which is used to wake up the main control module in the sleep state through the dynamic clock cycle. The clock cycle of the sleep control module is constantly changing.

[0082] In the embodiment, the first instruction can be composed of letters, numbers or strings, which is used to wake up the main control module.

[0083] In the scheme, a power supply system for unmanned vehicles can be installed at various positions of the unmanned vehicle according to the needs, for example, a power supply system for unmanned vehicles can be installed on the chassis of the unmanned vehicle.

[0084] S420, start based on the first instruction, and send a second instruction to the low-voltage power module to make the low-voltage power module start according to the second instruction.

[0085] Among them, the low-voltage power module can be a daytime running lamp, a position lamp, a vehicle-mounted fan, a sensor module, an advertising screen, a vehicle body atmosphere lamp or a voice speaker on the unmanned vehicle. The rated power of different low-voltage power modules may be the same or different. The low-voltage power module is in a sleep state in the vehicle power-off state.

[0086] In the scheme, the second instruction can also be composed of letters, numbers or strings, which is used to wake up the low-voltage power module.

[0087] S430, after the low-voltage power module starts, detect the voltage of the low-voltage power module, and compare the detected voltage value with the first dynamic voltage threshold value, if the voltage value is less than the first dynamic voltage threshold value, charge the low-voltage power module through the high-voltage power module.

[0088] In the embodiment, the low-voltage power module can be a low-voltage storage battery, which is used to supply power to the low-voltage power module.

[0089] Specifically, the main control module and the low-voltage power module are connected through a signal line; the main control module and the low-voltage power module are connected through a wire. The voltage values at both ends of the main control module and the low-voltage power module are the same.

[0090] Among them, the first dynamic voltage threshold value can be set according to the charging demand of the low-voltage power module. The first dynamic voltage threshold value in different clock cycles may be the same or different.

[0091] Further, after the unmanned vehicle is powered off, the main control module and the low-voltage power module are in a sleep state. The sleep control module in the main control module wakes up the main control module through a clock cycle. After the main control module is started, the main control module controls the low-voltage power module to start, and detects the voltage across the low-voltage power module, and can also detect the voltage across the main control module. If the detected voltage value is lower than a first dynamic voltage threshold, it indicates that the power of the low-voltage power module is low at this time, and the low-voltage power module can be charged by the high-voltage power module. The voltage value can be the lowest voltage value across the low-voltage power module.

[0092] In this embodiment, after the charging is completed, the main control module controls the unmanned vehicle to be powered off again, and enters a sleep state, and the sleep control module re-timers.

[0093] In this embodiment, after the charging is completed, the main control module controls the unmanned vehicle to be powered off again, and enters a sleep state, and the sleep control module re-timers.

[0094] Optionally, the setting process of the dynamic clock cycle includes:

[0095] When the voltage of the low-voltage power module is greater than a second dynamic voltage threshold, the next clock cycle is increased, and the second dynamic voltage threshold is higher than the first dynamic voltage threshold.

[0096] The second dynamic voltage threshold can be set according to the charging demand of the low-voltage power module. The second dynamic voltage threshold in different clock cycles can be the same or different.

[0097] In this embodiment, when the voltage of the low-voltage power module is greater than the second dynamic voltage threshold, the power of the low-voltage power module is relatively high, and at this time, the next clock cycle can be increased, that is, the period of detecting the low-voltage power module is prolonged.

[0098] By setting the second dynamic voltage threshold to adjust the next clock cycle, dynamic detection of the low-voltage power module in the power supply system of the unmanned vehicle can be realized, the detection reliability can be improved, and the detection cost can be saved.

[0099] The technical scheme of the embodiment of the present application receives the first instruction sent by the hibernation control module according to the dynamic clock period based on the main control module; starts based on the first instruction, and sends the second instruction to the low-voltage power consumption module, so that the low-voltage power consumption module starts according to the second instruction; after the low-voltage power consumption module starts, the voltage of the low-voltage power supply module is detected, and the detected voltage value is compared with the first dynamic voltage threshold value; if the voltage value is less than the first dynamic voltage threshold value, the low-voltage power supply module is charged by the high-voltage power supply module. By executing the technical scheme, the voltage of the low-voltage power supply module is periodically detected by the main control module to complete the charging of the low-voltage power supply module, which can save cost and improve detection reliability.

[0100] It should be understood that the various forms of flow shown above can be reordered, added to, or deleted from. For example, each step described in the present application can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical scheme of the present application can be achieved, which is not limited herein.

[0101] The above specific embodiments do not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent replacement and improvement within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An unmanned vehicle power supply system, characterized by, The application relates to an unattended vehicle power supply system, which comprises a hibernation control module, a main control module, a high-voltage power supply module and a low-voltage power supply module; wherein the main control module is in a hibernation state in a vehicle power-off state; the hibernation control module is connected with the main control module and is used for sending a first instruction to the main control module according to a dynamic clock cycle; the main control module is connected with a low-voltage power consumption module and is used for starting based on the first instruction and sending a second instruction to the low-voltage power consumption module so that the low-voltage power consumption module starts according to the second instruction; the main control module is connected with the low-voltage power supply module and is used for detecting the voltage of the low-voltage power supply module after the low-voltage power consumption module starts, comparing the detected voltage value with a first dynamic voltage threshold value, and charging the low-voltage power supply module through the high-voltage power supply module if the voltage value is smaller than the first dynamic voltage threshold value; wherein the low-voltage power consumption module comprises a third power consumption device, and the main control module is further used for recording the current position of the unattended vehicle before power-off, selecting the third power consumption device to start after the main control module starts based on the first instruction; wherein the current position is an area outside a parking lot, and the third power consumption device is at least one of an advertisement screen, a vehicle atmosphere lamp or a voice horn; wherein the main control module is further used for: when the voltage value is smaller than the first dynamic voltage threshold value, obtaining the SOC of the high-voltage power supply module, the probability of power-on within a predetermined time at a current time, determining the charging duration based on the probability of power-on within the predetermined time at the current time when the SOC of the high-voltage power supply module is greater than a first high-voltage power supply module threshold value, and determining whether to charge based on the probability of power-on within the predetermined time at the current time when the SOC of the high-voltage power supply module is smaller than the first high-voltage power supply module threshold value; the hibernation control module is further used for: when the voltage of the low-voltage power supply module is greater than a second dynamic voltage threshold value, increasing the next clock cycle, and the second dynamic voltage threshold value is higher than the first dynamic voltage threshold value; the low-voltage power consumption module comprises a first power consumption device and a second power consumption device, and the main control module is further used for: obtaining an environmental temperature, and lowering the first dynamic voltage threshold value or selecting the first power consumption device to start when the environmental temperature is lower than a temperature threshold value, wherein the rated power of the first power consumption device is smaller than that of the second power consumption device; the main control module is further used for: obtaining an environmental temperature, and lowering the first dynamic voltage threshold value or selecting the power consumption device with the lowest rated power in the third power consumption device to start when the environmental temperature is lower than a temperature threshold value; the probability of power-on within the predetermined time at the current time is obtained based on the cumulative power-off duration of historical data and the statistical probability of a current time point; the application further relates to an unattended vehicle power supply system, which comprises a main control module and a low-voltage power consumption module; the main control module is used for receiving a first instruction sent by a hibernation control module according to a dynamic clock cycle; the main control module is used for starting based on the first instruction and sending a second instruction to the low-voltage power consumption module so that the low-voltage power consumption module starts according to the second instruction. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The system of claim 1, wherein, ​ ​ 3. The system of claim 2, wherein, ​ ​ 4. The system of claim 1, wherein, ​ ​ 5. The system of claim 1, wherein, ​ 6. A method for powering an unmanned vehicle, the method comprising: ​ ​ ​ After the low-voltage power module is started, a voltage of the low-voltage power module is detected, and the detected voltage value is compared with a first dynamic voltage threshold value; if the voltage value is less than the first dynamic voltage threshold value, the low-voltage power module is charged by the high-voltage power module; The low-voltage power module comprises a third power consumption device, and the method further comprises: A current position of the unmanned vehicle before power-off is recorded, and after the main control module is started based on the first instruction, the third power consumption device is started according to the current position; When the current position is an area outside a parking lot, the third power consumption device is at least one of an advertising screen, a vehicle atmosphere lamp or a voice speaker. The method further comprises: When the voltage value is less than the first dynamic voltage threshold value, a SOC of the high-voltage power module and a probability of power-on within a predetermined time at a current time are obtained; when the SOC of the high-voltage power module is greater than a first high-voltage power module threshold value, a charging duration is determined based on the probability of power-on within the predetermined time at the current time; When the SOC of the high-voltage power module is less than the first high-voltage power module threshold value, it is determined whether to charge based on the probability of power-on within the predetermined time at the current time.

7. The method of claim 6, wherein, The setting process of the dynamic clock period comprises: When the voltage of the low-voltage power module is greater than a second dynamic voltage threshold value, a next clock period is increased, and the second dynamic voltage threshold value is higher than the first dynamic voltage threshold value.

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