A power supply control method and system based on a vehicle-mounted refrigeration system

Abstract

The application relates to a power supply control method and system based on a vehicle-mounted refrigeration system, and relates to the field of refrigeration systems, which comprises the following steps: collecting power consumption parameters and travel parameters of a vehicle; determining a current load based on the power consumption parameters, determining navigation information and map data according to the travel parameters; determining a destination type according to the navigation information, and determining destination environment information according to the map data; when the destination type and the destination environment information are inconsistent, performing a standby power reminding to collect an operation instruction, a current temperature and a target temperature of a storage space; in response to the operation instruction or when the destination type and the destination environment information are consistent, determining a cooling time according to the target temperature and the current temperature, detecting in a preset standby power detection method based on the power consumption parameters and the current load to output a detection result; adjusting the temperature according to the detection result and the cooling time, and performing standby power based on the current load in a preset standby power method after the adjustment is completed. The application has the effect of improving the stability of equipment.

Description

Technical Field

[0001] This invention relates to the field of refrigeration systems, and in particular to a power supply control method and system based on an on-board refrigeration system. Background Technology

[0002] With the increasing prevalence of mobile activities such as self-driving travel and outdoor camping, refrigeration systems are evolving towards multi-scenario adaptability and long-term stable operation, while also needing to consider both accurate temperature control and environmental adaptability.

[0003] Current refrigeration systems in the industry, such as vehicle refrigerators, support direct connection to vehicle power. By configuring a backup power module, the backup power can be activated manually or through a simple triggering mechanism after the main power is disconnected. Temperature control systems mostly adopt an overall temperature control mode and have basic cooling and heat preservation functions. Some devices can be adapted to simple outdoor power supply scenarios, thus meeting the basic cooling needs in conventional mobile scenarios.

[0004] The above-mentioned solutions suffer from insufficient timeliness and stability in cooling due to the activation of backup power and power switching, which can easily lead to cooling interruptions. Furthermore, they cannot be adapted to different environments, such as inside a vehicle or outdoors, making it difficult to meet the user experience requirements. Summary of the Invention

[0005] To improve equipment stability, this invention provides a power supply control method and system based on an on-board refrigeration system.

[0006] In a first aspect, the present invention provides a power supply control method based on an on-board cooling system, employing the following technical solution: Collect vehicle power consumption and travel parameters; The current load is determined based on electricity consumption parameters, and navigation information and map data are determined based on travel parameters. Determine the destination type based on navigation information, and determine the destination environment information based on map data; When the destination type and destination environment information are inconsistent, a backup power reminder is issued to collect operating instructions, the current temperature of the storage space, and the target temperature. In response to an operation command or when the destination type and destination environment information are consistent, the cooling time is determined based on the target temperature and the current temperature, and the detection is performed based on the power consumption parameters and the current load using a preset backup power detection method to output the detection results. Temperature is adjusted based on the test results and cooling time. After adjustment, backup power is provided based on the current load using a preset backup power method.

[0007] By adopting the above technical solution, power consumption parameters and travel parameters are collected, and destination type and environmental information are combined. When they are inconsistent, a backup power reminder is triggered and temperature and instructions are collected. When they are consistent, the cooling time is calculated based on the target temperature and the current temperature, so as to cool down in advance to ensure the stability of cooling. The backup power detection output results are combined with power consumption parameters and current load, and backup power is then carried out to provide timely power supply and improve equipment stability in the event of a power outage.

[0008] Optionally, methods for determining test results include: Collect the remaining electrical energy of the preset energy storage battery; Determine the refueling time based on the current load and remaining battery power, and determine the estimated travel time based on navigation information; When the sum of the recharge time and the cooling time is not less than the expected driving time, the temperature is adjusted according to the cooling time, and the test result is to immediately switch to backup power; When the sum of the recharge time and the cooling time is less than the estimated driving time, the waiting time is calculated based on the recharge time and the estimated driving time, and the detection result is delayed backup power. The waiting time and recharge time are updated based on the cooling time until the sum of the recharge time and cooling time equals the estimated driving time. At this point, the test result is corrected from delayed backup power to immediate backup power.

[0009] By adopting the above technical solution, the remaining energy of the energy storage is obtained, and the replenishment time is calculated in combination with the current load. Then, the sum of the replenishment time and the cooling time is compared with the estimated travel time to dynamically match the backup power with the distance. The backup power is output immediately or delayed in real time, and the parameters are updated cyclically during the waiting process until the conditions are met to start the cooling, thus taking into account both energy saving and temperature protection.

[0010] Optionally, methods for determining the target temperature include: Collect information about items within the storage space; Match the minimum temperature and insulation temperature based on the item information; Determine the rate threshold and ambient temperature based on map data; The heating rate is determined based on the lowest temperature and the ambient temperature. When the heating rate is not greater than the rate threshold, the target temperature is updated based on the lowest temperature. When the heating rate exceeds the rate threshold, the target temperature is updated based on the holding temperature.

[0011] By adopting the above technical solution, after collecting the information of the items, the minimum temperature and the heat preservation temperature are matched in sequence. The heating rate is calculated by combining the rate threshold given by the map and the ambient temperature. The minimum temperature or the heat preservation temperature is dynamically selected as the target temperature based on the rate threshold. The target temperature is adaptively adjusted to prevent the temperature from being set too high, which would lead to energy waste, or too low, which would cause damage to the items.

[0012] Optional, also includes: Collect cooling coefficient and freezing temperature; Determine the freezing temperature difference based on the freezing temperature and the target temperature; The cooling start threshold is determined based on the cooling time and the cooling coefficient. When the freezing temperature difference is not greater than the cooling start threshold, the freezing temperature difference is updated according to the cooling start threshold. The temperature is adjusted by activating cooling based on the freezing temperature difference to update the heating rate; When the freezing temperature difference exceeds the cooling start threshold, the cooling supply is activated based on the freezing temperature difference to adjust the temperature and update the heating rate.

[0013] By adopting the above technical solution, the cooling coefficient and freezing temperature are introduced, the freezing temperature difference and cooling start threshold are calculated, and the threshold is updated and cooling is started when the temperature difference is less than the threshold. This reduces ineffective operation, refreshes the heating rate in real time, and forms a closed-loop correction of temperature difference and rate, ensuring accurate timing of cooling start and improving overall energy efficiency.

[0014] Alternatively, methods for temperature regulation may also include: In response to a power outage command, the cold storage threshold is determined based on the freezing temperature difference; The cold air flow rate is determined based on the cold storage threshold; The cooling area is determined based on the cold air velocity and the cooling coefficient. Cooling is provided based on the cooling area, and the freezing temperature difference is updated. Match the cooling threshold according to the current temperature; Cooling will stop when the temperature difference between the freezing and refrigeration points is less than the cooling threshold or in response to a power supply command.

[0015] By adopting the above technical solution, in the event of a power outage, the cold storage threshold is determined based on the freezing temperature difference, the cold storage capacity is calculated in combination with the freezing time, and then the cold air flow rate and the cooling area are derived to ensure the quality of the goods, continuously supply cooling and monitor the freezing temperature difference, and only stop the cooling supply when the temperature difference is lower than the cooling threshold or a power supply command is received, so that the carriage can still use cold storage to maintain a low temperature during the power outage, reducing the load after power is restored.

[0016] Optional, also includes: Collect vehicle parameters, current location solar angle parameters, and light intensity; The solar incidence angle on the refrigerator surface is calculated based on the solar angle parameters, and the orientation angle is determined based on the vehicle parameters. Match the incident angle threshold based on the orientation angle, and determine the light intensity threshold based on the current time; When the solar incidence angle is less than the incidence angle threshold and the light intensity is greater than the light intensity threshold, the location and parameters of the acquisition device are collected. The coverage area is determined based on the solar incidence angle and equipment parameters, and the coverage threshold is determined based on the equipment parameters. When the coverage area is not greater than the coverage threshold, the shading parameters are determined according to the solar incidence angle, and shading is carried out using the shading parameters. When the coverage area is greater than the coverage threshold, the light-avoidance position is determined based on the equipment location and vehicle parameters; Based on the angle of solar incidence, the optimal location for sun protection with the smallest coverage area is selected from the available locations, and the location is then moved to avoid sunlight.

[0017] By adopting the above technical solution, vehicle parameters, solar angle and light intensity are collected, and the solar incident angle and refrigerator orientation angle are calculated. When the incident angle is less than the threshold and the light intensity is higher than the threshold, the coverage area is determined according to the equipment parameters. If the area does not exceed the threshold, the light-shielding parameters are output and the light is immediately blocked to achieve active heat insulation during periods of strong light. If the threshold is exceeded, the optimal light-shielding direction with the smallest coverage area is selected and the vehicle is moved to reduce the loss of cold energy and extend the heat preservation time.

[0018] Optionally, methods for achieving light protection using light-shielding parameters include: Collect the preset deployment parameters and shading response time of the light-shielding plate; Determine the unfolding angle range based on the unfolding parameters; Determine the target deployment angle of the sunshade based on the angle of solar incidence; The unfolded area is determined based on the coverage area and unfolding parameters; The unfolded area and the target unfolding angle are used as light-avoidance parameters.

[0019] By adopting the above technical solution, the deployment parameters and response time of the sunshade are obtained, the deployment angle range is calculated, the target deployment angle is locked by combining the solar incidence angle, and the deployment area is deduced from the coverage area. The target deployment angle and the deployment area are integrated into the light-shielding parameters, so that the angle of the sunshade and the shading area are optimized simultaneously, thereby improving the light-shielding efficiency.

[0020] Optional, also includes: Based on the angle of solar incidence and the vehicle's orientation angle, determine the local light intensity corresponding to each shaded position; Based on the local light intensity, the location with the least light is selected as the effective light-shielding area; From the effective light-shielding area, select the location with the smallest corresponding coverage area as the optimal light-shielding orientation, and update the coverage area; The movement parameters are determined based on the optimal light-avoidance orientation; The secondary light-shielding parameters are determined based on the movement parameters and the coverage area; Move the shield to the optimal light-shielding position using the movement parameters, and then adjust the light-shielding plate using the secondary light-shielding parameters.

[0021] By adopting the above technical solution, the local light intensity of each shaded position is calculated based on the solar incident angle and the vehicle's facing angle. The area with the least light is selected as the effective shaded area, thus effectively shading the vehicle. The area with the smallest coverage area is then selected as the optimal shaded position. Based on this, movement parameters and secondary shaded parameters are generated to control the vehicle's movement and fine-tune the sunshade, achieving simultaneous movement and shading, further reducing the impact of solar radiation on the cooling system.

[0022] Optional, also includes: In response to power supply commands, it acquires environmental images; Determine environmental parameters, shaded areas, and meteorological parameters based on environmental images; The occlusion parameters and location parameters are determined based on environmental parameters; Cloud parameters are determined based on meteorological parameters, and light intensity is updated. The judgment threshold is determined based on light intensity and cloud parameters; Cooling is initiated when the shading parameter exceeds the judgment threshold. When the occlusion parameter is not greater than the judgment threshold, the displacement information is determined based on the shadow area and position parameters, and a displacement suggestion is issued based on the displacement information.

[0023] By adopting the above technical solution, environmental parameters, shadow areas and meteorological parameters are extracted from environmental images. Combined with cloud parameters, the light intensity is updated and a judgment threshold is set. When the occlusion parameter is higher than the threshold, the cooling is directly started. Otherwise, the displacement information is calculated based on the shadow area and position parameters and a relocation suggestion is issued. This allows the vehicle to reduce heat load, reduce cooling energy consumption and extend battery range by utilizing natural shadows in complex weather conditions.

[0024] Secondly, this application provides a power supply control system based on an on-board cooling system, which adopts the following technical solution: A power supply control system based on an on-board cooling system includes: The acquisition module is used to acquire power consumption parameters, travel parameters, operation commands, current temperature, and target temperature. A memory for storing a program that implements the power supply control method based on an on-board refrigeration system as described in any one of the first aspects; The processor loads and executes programs from memory.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. Prepare backup power in advance according to driving conditions to ensure the stability of the cooling system's power supply after a power outage; 2. By pre-raising the temperature of the freezing area, the internal temperature can be lowered after a power outage, thus ensuring the cooling effect; 3. By shielding and avoiding the sun, the insulation and cooling effects are further improved. Attached Figure Description

[0026] Figure 1 This is a flowchart of a power supply control method based on an on-board cooling system according to an embodiment of the present invention; Figure 2 This is a flowchart of the method for determining the target temperature according to an embodiment of the present invention; Figure 3 This is a schematic diagram of a power supply control method based on an on-board refrigeration system according to an embodiment of the present invention.

[0027] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Car refrigerator; 2. Roller blind assembly; 3. Camera; 4. Sunshade; 5. Movable panel. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] This application discloses a power supply control method based on an on-board refrigeration system.

[0030] Reference Figure 1 A power supply control method based on an on-board cooling system includes the following steps: S100: Collects vehicle power consumption and travel parameters.

[0031] Electrical parameters refer to the electrical operating data of the vehicle's current power consumption, which is collected through the vehicle's system.

[0032] Travel parameters guide the collection of trip-related data such as the starting point, destination, estimated mileage, and departure time through the processor in the vehicle.

[0033] S101: Determine the current load based on power consumption parameters, and determine navigation information and map data based on travel parameters.

[0034] Current load refers to the vehicle's real-time electrical load power.

[0035] Navigation information refers to information such as routes, traffic conditions, and estimated travel time provided by the vehicle's infotainment system.

[0036] Map data refers to data on maps such as roads, speed limits, slopes, and terrain.

[0037] Based on the power consumption parameters, the real-time electrical load power of the vehicle is calculated, which is the current load; at the same time, the route, traffic conditions, and estimated travel time of the vehicle system are extracted and generated from the travel parameters, which is the navigation information. The data on roads, slopes, terrain, etc., are the map data.

[0038] S102: Determine the destination type based on navigation information and determine the destination environment information based on map data.

[0039] Destination type refers to the category of the destination (such as city, outdoors, etc.).

[0040] Destination environmental information refers to information such as temperature, altitude, availability of shade, and environment around the destination.

[0041] Based on the destination information in the navigation information, the corresponding place category of the destination is matched and classified, which is the destination type, such as city or outdoor; then, the environmental attributes such as temperature, altitude, and sunshade conditions around the destination are extracted from the map data, which is the destination environmental information.

[0042] S103: When the destination type and destination environment information are inconsistent, a backup power reminder is issued to collect operation instructions, the current temperature of the storage space, and the target temperature.

[0043] Backup power reminder refers to a prompt to confirm whether backup power should be activated, such as a pop-up window.

[0044] Operation commands refer to the driver's instructions to confirm or cancel the reminder.

[0045] Storage space refers to the storage compartment of a refrigeration system, such as a vehicle refrigerator 1.

[0046] The current temperature refers to the real-time temperature within the storage space, which is collected by a temperature sensor.

[0047] The target temperature refers to the set temperature that the user expects the storage space to reach, which is set by the user.

[0048] By inputting the destination type into a preset type environment database to obtain type environment baseline information, and by calculating the matching degree between the type environment baseline information and the destination environment information, when the matching degree is greater than the preset consistency matching degree, it means that the destination type and destination environment information are inconsistent; when the matching degree is not greater than the preset consistency matching degree, it means that the destination type and destination environment information are consistent.

[0049] When the destination type and destination environment information are inconsistent, it indicates uncertainty about whether outdoor activities will be carried out. Therefore, the backup power reminder collects operation instructions, the current temperature of the storage space and the target temperature to determine whether backup power and cooling are needed.

[0050] Type-based environmental baseline information refers to baseline temperature, altitude, availability of shade, and environmental conditions around different destination types. The type-based environmental database pre-stores a lookup table of different destination types and their corresponding type-based environmental baseline information, which is retrieved after pre-input by the operator. Consistency matching degree refers to the minimum matching degree that the operator pre-sets to indicate a consistency between the destination type and the destination environmental information.

[0051] S104: In response to an operation command or when the destination type and destination environment information are consistent, determine the cooling time based on the target temperature and the current temperature, and perform detection based on the power consumption parameters and the current load using a preset backup power detection method to output the detection result.

[0052] Cooling time refers to the time required for the temperature to drop from the current temperature to the target temperature.

[0053] The backup power detection method refers to the logical method for determining whether the cooling system needs to be started in advance and energy reserves need to be stored. It is set in advance by technicians according to the actual situation and will not be elaborated here.

[0054] The test results refer to two outcomes: immediate backup power or delayed backup power.

[0055] In response to an operation command or when the destination type and destination environment information are consistent, it indicates that outdoor sports activities are to be carried out. Based on the difference between the target temperature and the current temperature of the storage space, and combined with the cooling efficiency of the refrigeration system, the cooling time required to drop from the current temperature to the target temperature is calculated. At the same time, based on the power consumption status reflected by the vehicle's electrical parameters and the real-time electrical load power corresponding to the current load, a preset backup power detection method is used for comprehensive judgment, and finally the detection result of immediate backup power or delayed backup power is output, providing a basis for subsequent cooling and backup power operations.

[0056] S105: Adjust the temperature according to the detection results and cooling time. After the adjustment is completed, perform backup power according to the preset backup power method based on the current load.

[0057] Backup power methods refer to the strategies by which vehicles supply power to energy storage batteries. These are pre-set by technicians based on actual conditions and will not be elaborated upon here.

[0058] The specific steps for temperature adjustment are as described in S300 to S506. After the vehicle refrigerator 1 completes temperature adjustment, the vehicle's electrical energy is rationally allocated to the energy storage battery of the refrigeration system based on the current load and backup power method. This ensures that the energy storage battery has enough power to meet the subsequent cooling needs, while avoiding the impact of excessive load on the stable operation of other electrical systems of the vehicle during the backup power process. This achieves coordinated adaptation between the backup power of the refrigeration system and the overall power consumption of the vehicle.

[0059] Methods for determining test results include: S200: Collects the remaining electrical energy of the preset energy storage battery.

[0060] Energy storage batteries refer to energy storage devices within the refrigeration system. These are read by the vehicle's system and are pre-set by technicians according to actual conditions, so they will not be elaborated upon here.

[0061] S201: Determine the refueling time based on the current load and remaining power, and determine the estimated travel time based on navigation information.

[0062] Recharge time refers to the time required for the remaining battery power to be fully charged under the current load.

[0063] Based on the remaining energy of the energy storage battery and the real-time electrical load power corresponding to the current load, the time required to fully charge the battery is calculated through the power supply and demand balance logic. At the same time, data such as route and road conditions are extracted from the navigation information to deduce the estimated travel time from the current location to the destination, providing time parameters for determining the timing of subsequent backup power.

[0064] S202: When the sum of the recharge time and the cooling time is not less than the expected driving time, the temperature is adjusted according to the cooling time, and the test result is to immediately switch to backup power.

[0065] Immediate backup power refers to immediately implementing backup power methods.

[0066] When the sum of the recharging time and the cooling time is not less than the expected driving time, it indicates that the backup power cooling time is insufficient. Temperature adjustment should be performed based on the cooling time. The test result is to immediately switch to backup power to ensure subsequent use.

[0067] S203: When the sum of the recharge time and the cooling time is less than the estimated driving time, the waiting time is calculated based on the recharge time and the estimated driving time, and the detection result is delayed backup power.

[0068] Waiting time refers to the time during which the cooling system is delayed.

[0069] Delayed backup power refers to power backup being implemented after cooling.

[0070] When the sum of the recharge time and the cooling time is less than the estimated driving time, it means that the preparation time is sufficient. The waiting time is calculated by subtracting the sum of the recharge time and the cooling time from the estimated driving time, and the detection result is output as delayed backup power.

[0071] S204: Based on the cooling time, update the waiting time and recharge time until the sum of the recharge time and cooling time equals the estimated driving time, then the detection result is corrected from delayed backup power to immediate backup power.

[0072] Based on the cooling time, the system continuously updates the waiting time for delayed cooling start and the recharge time of the energy storage battery. By continuously updating these two values, when the sum of the recharge time and the cooling time equals the expected driving time, the delayed backup power detection result is corrected to immediate backup power. This ensures that the cooling system can reach the target temperature while the vehicle is in motion, and also avoids wasting electrical energy.

[0073] Reference Figure 2 The methods for determining the target temperature include: S300: Collects information about items within the storage space.

[0074] The item information refers to the data on the types of items in the storage space, which is collected by the pre-installed camera 3 inside the refrigerator, and will not be elaborated on here.

[0075] S301: Match the minimum temperature and insulation temperature based on the item information.

[0076] Minimum temperature refers to the lowest temperature limit that an item can withstand.

[0077] Insulation temperature refers to the optimal temperature required to maintain the quality of an item.

[0078] There is a pre-set table of item information and minimum and insulation temperatures, which matches the minimum and insulation temperatures according to the item information. The table contains a one-to-one correspondence between each item's information and its minimum and insulation temperatures, which will not be elaborated here.

[0079] S302: Determine the rate threshold and ambient temperature based on map data.

[0080] The rate threshold refers to the maximum permissible rate of temperature rise.

[0081] Ambient temperature refers to the temperature of the destination environment.

[0082] By extracting environmental feature information of the destination from the map data of vehicle navigation, the maximum allowable temperature rise rate threshold of items in the storage space is determined. At the same time, the real-time ambient temperature around the destination is obtained, providing key parameter support for subsequent target temperature calibration and temperature rise rate calculation.

[0083] S303: Determine the heating rate based on the minimum temperature and ambient temperature.

[0084] The rate of temperature increase refers to the magnitude of temperature rise per unit time.

[0085] Based on the lowest temperature that the items in the storage space can withstand and the ambient temperature of the destination, the temperature gradient between the two is calculated using a heat transfer model. Then, combined with the thermal conductivity of the items and the insulation performance of the storage space, the temperature rise per unit time of the items without refrigeration intervention is determined, which is the heating rate. This provides a quantitative basis for subsequent adjustment of the target temperature.

[0086] S304: When the heating rate is not greater than the rate threshold, update the target temperature based on the lowest temperature.

[0087] When the heating rate is not greater than the rate threshold, it means that the quality of the item can be maintained by cooling. The lowest temperature is taken as the target temperature to maintain the quality of the item.

[0088] S305: When the heating rate exceeds the rate threshold, update the target temperature based on the holding temperature.

[0089] When the heating rate exceeds the rate threshold, it indicates that the quality of the item cannot be maintained by cooling. The insulation temperature should be used as the target temperature to reduce energy consumption.

[0090] Also includes: S400: Collects cooling coefficient and freezing temperature.

[0091] The coefficient of performance (COP) is a physical constant that measures the efficiency of heat transfer during cooling.

[0092] Freezing temperature refers to the lowest temperature that the refrigeration system can reach in the refrigeration zone; it is a set value.

[0093] S401: Determine the freezing temperature difference based on the freezing temperature and the target temperature.

[0094] Freezing temperature difference refers to the difference between the freezing temperature and the target temperature, and is used to update the heating rate.

[0095] The freezing temperature difference is determined by subtracting the target temperature from the freezing temperature.

[0096] S402: Determine the cooling start threshold based on the cooling time and cooling coefficient.

[0097] The cooling start threshold refers to the minimum temperature difference that allows the cooling system to start.

[0098] Based on the cooling time required by the refrigeration system and the coefficient of performance (COP) which characterizes heat transfer efficiency, the minimum temperature difference threshold required to achieve effective cooling is calculated using a heat balance algorithm. This threshold is the cooling start-up threshold, which avoids the refrigeration system from operating ineffectively due to an excessively small temperature difference and ensures the rationality of cooling efficiency and energy utilization.

[0099] S403: When the freezing temperature difference is not greater than the cooling start threshold, update the freezing temperature difference according to the cooling start threshold.

[0100] When the freezing temperature difference is not greater than the cooling start threshold, it means that the temperature difference is not large, so there is no unnecessary cooling supply.

[0101] S404: Temperature regulation is performed by activating cooling based on the freezing temperature difference to update the heating rate.

[0102] The refrigeration system, based on the temperature difference control of freezing, provides cooling and precisely regulates the temperature of the storage space. At the same time, it dynamically updates the heating rate of items in this environment based on real-time temperature change data of the storage space during the temperature regulation process, providing real-time quantitative reference for the optimization and adjustment of subsequent refrigeration strategies.

[0103] During cooling, the refrigerator is divided into freezer and refrigerator compartments. Items in the freezer compartment continue to cool down to the refrigerator's lowest temperature. After a power outage, the roller shutter assembly 2 on the preset cooling module is opened. The opening and closing of the roller shutter changes the diameter of the connecting channel between the freezer and refrigerator compartments to cool the refrigerator compartment. The cooling module is electrically controlled by technicians to open and close the roller shutter, which will not be described in detail here.

[0104] S405: When the freezing temperature difference is greater than the cooling start threshold, the cooling supply is turned on based on the freezing temperature difference to adjust the temperature and update the heating rate.

[0105] When the freezing temperature difference is greater than the cooling start threshold, it indicates that the temperature difference is large. Based on the freezing temperature difference, the cooling supply is activated to adjust the temperature and update the heating rate.

[0106] Methods for temperature regulation also include: S500: In response to a power outage command, it determines the cold storage threshold based on the freezing temperature difference.

[0107] A power-off command is a signal that the vehicle is powered off or the cooling system is de-energized.

[0108] The cold storage threshold refers to the lowest temperature that the refrigeration system in the frozen area can reach after it is started.

[0109] In response to a power outage command, a lookup table of freezing temperature difference and cold storage threshold is preset, thereby determining the cold storage threshold based on the freezing temperature difference. The lookup table contains a one-to-one correspondence between freezing temperature difference and cold storage threshold, which will not be elaborated here.

[0110] S501: Determine the cold air flow rate based on the cold storage threshold.

[0111] Cold air velocity refers to the speed at which cold air flows.

[0112] A reference table is pre-set to match the cold storage threshold and the cold air flow rate. The cold air flow rate is determined based on the cold storage threshold. The reference table contains a one-to-one correspondence between the cold storage threshold and the cold air flow rate, which will not be elaborated here.

[0113] S502: Determine the cooling area based on the cold air velocity and the cooling coefficient.

[0114] The cooling area refers to the valve opening size.

[0115] Based on the cold air velocity required to maintain the cold storage effect and the cooling coefficient that characterizes the heat transfer efficiency of the refrigeration system, the optimal opening size of the valves in the refrigeration system, i.e. the cooling area, is determined by calculation using a coupled fluid dynamics and heat exchange model. This allows for precise control of the cold output rate, ensuring that the cold storage capacity is released evenly and matches the cooling requirements of the storage space.

[0116] S503: Provides cooling based on the cooling area and updates the freezing temperature difference.

[0117] Control the preset cooling modules to provide cooling based on the cooling area and update the freezing temperature difference.

[0118] S504: Match the cooling threshold according to the current temperature.

[0119] The cooling threshold is the threshold used to determine whether or not to provide cooling.

[0120] Based on the current temperature of the storage space, combined with the cooling capacity of the refrigeration system, the insulation requirements of the items, and the influence of ambient temperature, a lookup table is preset between the current temperature and the cooling threshold. The lookup table contains a one-to-one correspondence between the current temperature and the cooling threshold, and matches the critical temperature standard used to determine whether cooling needs to continue, i.e., the cooling threshold, to provide a clear basis for subsequent cooling start and stop operations.

[0121] S505: Stop cooling until the freezing temperature difference is less than the cooling threshold or in response to a power supply command.

[0122] A power supply command is a signal to restore power, such as when the power source is connected.

[0123] The cooling supply will stop when the temperature difference between the freezing and cooling systems falls below the cooling threshold or when a power supply command is received, indicating that the temperature is insufficient or when the power supply is connected.

[0124] Also includes: S600: Collects vehicle parameters, current location solar angle parameters, and light intensity.

[0125] Vehicle parameters refer to parameters such as the size and space of the vehicle's trunk and the direction of travel, which are obtained through the vehicle's internal system.

[0126] The solar angle parameter refers to the angle parameters of solar altitude angle and azimuth angle, which are collected by a light sensor pre-installed on the outside of the vehicle.

[0127] Light intensity refers to the intensity of solar radiation, which is collected by a light sensor pre-installed on the exterior of the vehicle.

[0128] S601: Calculate the solar incidence angle on the refrigerator surface based on the solar angle parameter, and determine the orientation angle based on the vehicle parameters.

[0129] The angle of incidence of sunlight refers to the angle between the sunlight entering the car and the horizon.

[0130] Orientation angle refers to the angle at which a vehicle turns relative to true north.

[0131] Based on the collected solar angle parameters, the solar incidence angle of direct sunlight on the surface of the vehicle refrigerator 1 is calculated by combining the geometric projection model. Vehicle parameters such as the vehicle's driving direction and body layout are extracted. By calibrating the angle with due north, the vehicle's orientation angle is determined, providing core angle parameters for subsequent light impact assessment and light avoidance strategy formulation.

[0132] S602: Match the incident angle threshold based on the orientation angle, and determine the light intensity threshold based on the current time.

[0133] The incident angle threshold refers to the maximum angle of sunlight that can enter the vehicle.

[0134] The light intensity threshold refers to the lower limit of light intensity required to activate light avoidance.

[0135] Based on the vehicle's orientation angle and referring to the preset light projection correlation model, the maximum angle limit at which sunlight can effectively reach the refrigerator surface is matched, i.e., the incident angle threshold. Based on the solar radiation pattern corresponding to the current time and combined with the ambient light baseline data, the minimum light intensity standard required to activate the light-avoidance protection is determined, i.e., the light intensity threshold, providing a clear quantitative basis for subsequent light impact assessment.

[0136] S603: When the solar incident angle is less than the incident angle threshold and the light intensity is greater than the light intensity threshold, the location and parameters of the acquisition device are collected.

[0137] Equipment location refers to the real-time location of the refrigerator.

[0138] Equipment parameters refer to data such as the refrigerator's dimensions and area.

[0139] When the angle of incidence of the sun is less than the angle of incidence threshold and the light intensity is greater than the light intensity threshold, it means that the sun can shine in, thus allowing the equipment location and parameters to be collected.

[0140] S604: Determine the coverage area based on the solar incidence angle and equipment parameters, and determine the coverage threshold based on the equipment parameters.

[0141] Coverage area refers to the area of ​​the refrigerator surface exposed to sunlight.

[0142] The coverage threshold refers to the maximum area that the sun needs to reach, used to determine whether the sun will affect the refrigerator.

[0143] Based on the solar incident angle and equipment parameters such as the size and surface area of ​​the vehicle-mounted refrigerator 1, the actual area of ​​sunlight irradiated on the refrigerator surface, i.e. the coverage area, is calculated using the formula for calculating the light projection area. According to the temperature control zone range of the refrigerator in the equipment parameters, the critical value of the irradiated area used to determine whether the light affects the cooling is determined, i.e. the coverage threshold, providing a quantitative judgment standard for the selection of subsequent light avoidance strategies.

[0144] S605: When the coverage area is not greater than the coverage threshold, the shading parameters are determined according to the solar incidence angle, and shading is carried out using the shading parameters.

[0145] The light-shielding parameters refer to the parameters of the unfolded area and the target unfolding angle of the light-shielding plate 4.

[0146] When the coverage area is not greater than the coverage threshold, it means that the light-shielding plate 4 can block the light, and thus block the light. The specific method is to refer to S700 to S704.

[0147] S606: When the coverage area is greater than the coverage threshold, determine the light-avoidance position based on the equipment location and vehicle parameters.

[0148] The location to avoid light refers to the position where the refrigerator needs to be moved.

[0149] When the coverage area is greater than the coverage threshold, it means that the light shield 4 cannot block the light, thus providing light protection. Based on the device location, the real-time placement point of the vehicle refrigerator 1 is determined, as well as vehicle parameters such as the size of the vehicle trunk and the interior space layout. By screening out areas with weaker light radiation in the cabin, these areas are designated as candidate areas that can be used for refrigerator relocation and light protection, i.e., light protection locations, providing a basic range for the subsequent selection of the optimal light protection location.

[0150] S607: Based on the angle of solar incidence, select the optimal shade-avoidance location with the smallest coverage area from the shade-avoidance locations, and move to avoid sunlight using the optimal shade-avoidance location.

[0151] Using the solar incident angle as the core calculation basis for the impact of light, and combining the spatial orientation and light projection pattern of each candidate light-avoidance position, the sunlight coverage area of ​​the refrigerator surface corresponding to each position is calculated, and the area with the smallest coverage area is selected as the optimal light-avoidance position; then the vehicle refrigerator 1 is controlled to move to this position to complete the relocation and light-avoidance operation, so as to minimize the impact of direct sunlight on the energy consumption of the refrigeration system.

[0152] Methods for achieving light protection using light-shielding parameters include: S700: Collect the preset deployment parameters of the light-shielding plate 4.

[0153] The unfolding parameters refer to the maximum unfolding angle, unfolding speed, and unfolding area of ​​the light shield 4, which are set values.

[0154] S701: Determine the development angle range based on the development parameters.

[0155] The unfolding angle range refers to the range of angles within which the light-shielding plate 4 can be unfolded.

[0156] The maximum unfolding angle of the light-shielding plate 4 in the unfolding parameters is the unfolding angle range.

[0157] S702: Determine the target deployment angle of the sunshade 4 based on the angle of solar incidence.

[0158] The target unfolding angle refers to the optimal unfolding angle required given the current solar incidence angle.

[0159] Referring to the solar incident angle and the preset light blocking angle matching model, and combining the structural dimensions and installation position of the light shield 4, the angle value that can completely block direct sunlight from hitting the surface of the vehicle refrigerator 1 is calculated, which is the target unfolding angle of the light shield 4, so as to ensure the light protection effect and reduce the additional energy consumption of the refrigeration system caused by sunlight.

[0160] S703: Determine the unfolded area based on the coverage area and unfolding parameters.

[0161] The unfolded area refers to the actual shading area of ​​the light-shielding panel 4 after it is unfolded.

[0162] Based on the actual area of ​​sunlight covering the refrigerator surface, as well as the structural dimensions and transmission ratio of the light shield 4, the effective shading area that the light shield 4 needs to be deployed, i.e. the deployed area, is determined through the coupling calculation of geometric projection and mechanical deployment stroke. This ensures that the deployed light shield 4 can completely cover the sunlit area and achieve the best light-blocking protection effect.

[0163] S704: Use the unfolded area and target unfolding angle as light-avoidance parameters.

[0164] The unfolded area and the target unfolding angle are used as light-shielding parameters to control the light-shielding plate 4 to perform light-shielding.

[0165] Also includes: S801: Determine the local light intensity corresponding to each shaded position based on the solar incident angle and the vehicle's orientation angle.

[0166] Local illumination intensity refers to the residual solar radiation intensity at a location that is protected from direct sunlight.

[0167] Based on the obtained solar incidence angle and the vehicle's own orientation angle, the direct sunlight angle and radiation energy density of each candidate shade location are calculated by coupling the light intensity attenuation model and the angle projection coefficient. This determines the local light intensity corresponding to each shade location, providing a quantitative basis for the selection of the optimal shade location.

[0168] S802: Based on the local light intensity, select the location with the least light as the effective light-shielding area.

[0169] Effective light-shielding areas refer to the set of locations with the lowest local light intensity.

[0170] Using the local light intensity corresponding to each candidate light-shielding location as the screening index, by comparing the light radiation energy density of different locations, the area with the lowest light intensity is first screened out and designated as the effective light-shielding area, thereby maximizing the reduction of the negative impact of direct sunlight on the cooling efficiency of the vehicle refrigerator 1 and reducing the system's additional energy consumption.

[0171] S803: From the effective light-shielding area, select the location with the smallest corresponding coverage area as the optimal light-shielding orientation, and update the coverage area.

[0172] Within the designated effective light-avoidance area, the solar coverage area parameters of the refrigerator surface corresponding to each area are further compared. The location with the smallest coverage area is selected as the optimal light-avoidance orientation, and the actual solar coverage area data of the refrigerator surface under this optimal orientation is updated simultaneously to provide accurate quantitative reference for the continuous optimization of the subsequent light-avoidance strategy.

[0173] S804: Determine the movement parameters based on the optimal light-avoidance orientation.

[0174] The movement parameters refer to the parameters that control the distance and direction of the movement of the equipment in the refrigeration system, in order to control the movement of the movable plate 5 that is preset under the refrigerator. The movable plate 5 is pre-set in the vehicle by the technicians.

[0175] Based on the selected optimal light-shielding orientation, combined with the installation and fixing method of the vehicle refrigerator 1, the spatial layout of the vehicle cabin, and the transmission characteristics of the moving mechanism, the key parameters such as the moving distance, moving speed, and turning angle required for the refrigerator to be moved are calculated, i.e., the moving parameters. This provides precise action commands to the moving actuator, ensuring that the refrigerator can be moved smoothly and efficiently to the target light-shielding position.

[0176] S805: Determine the secondary light-shielding parameters based on the movement parameters and coverage area.

[0177] The secondary light-shielding parameters refer to the data on the unfolding angle and unfolding area that need to be adjusted again after the light-shielding plate 4 is moved.

[0178] Based on the moving distance and other data in the moving parameters and the real-time coverage area under the optimal light-shielding orientation, the secondary adjustment angle and unfolded area correction value of the light shield 4 are calculated through dynamic simulation of light projection and coupled analysis of moving trajectory. These are the secondary light-shielding parameters. This achieves light-shielding protection compensation after the vehicle refrigerator 1 is moved, further eliminating local light blind spots caused by changes in spatial posture during the movement, and ensuring the stability of the light-shielding effect.

[0179] S806: Move to the optimal light-shielding position using the movement parameters, and adjust the light-shielding plate 4 using the secondary light-shielding parameters.

[0180] The control panel 5 is moved to the optimal light-shielding position using the movement parameters, and the light-shielding panel 4 is adjusted to deploy the light-shielding using the secondary light-shielding parameters.

[0181] Also includes: S901: In response to a power supply command, it acquires environmental images.

[0182] Environmental images refer to image information of the surrounding environment, which is collected by camera 3.

[0183] S902: Determine environmental parameters, shaded areas, and meteorological parameters based on environmental images.

[0184] Environmental parameters refer to data such as cloud thickness and current location in the environment.

[0185] The shaded area refers to the area on the ground where buildings, trees, etc., are projected.

[0186] Meteorological parameters refer to the weather data for that day.

[0187] By analyzing environmental images of the vehicle's surroundings and storage space, and using image semantic segmentation and feature extraction algorithms, environmental parameters such as terrain and the distribution of obstructions are obtained. At the same time, the boundaries between direct sunlight areas and obstructed areas in the images are identified, and usable shaded areas are marked. Combined with features such as cloud thickness and light uniformity in the images, meteorological parameters such as real-time light intensity and temperature change trends are derived, providing multi-dimensional environmental basis for subsequent light avoidance strategies and cooling adjustments.

[0188] S903: Determine occlusion parameters and location parameters based on environmental parameters.

[0189] The shading parameter refers to the data on the obstruction of solar radiation by clouds or the shadow of large trees.

[0190] Location parameters refer to the refrigerator's location coordinates in the environment.

[0191] Based on environmental parameters, the shadow coverage is determined through spatial shading efficiency simulation calculations, i.e., shading parameters. Based on the distribution of natural shading objects in the environment (such as building shadows and vehicle shading areas), the optimal placement point parameters that match the refrigerator installation location are matched, i.e., location parameters. This provides a precise basis for the deployment of external light-shielding devices and the auxiliary light-shielding layout of the refrigerator.

[0192] S904: Determine cloud parameters based on meteorological parameters and update light intensity.

[0193] Cloud parameters include cloud height, cloud type, and cloud movement speed.

[0194] Based on meteorological parameters, data such as cloud thickness, distribution range, and light transmittance are obtained through inversion calculation, i.e., cloud parameters. Then, based on the degree of cloud parameters' impact on solar radiation, the current ambient light intensity is dynamically corrected and updated, providing more accurate meteorological basis for real-time adjustments to subsequent sun avoidance strategies.

[0195] S905: Determine the judgment threshold based on light intensity and cloud parameters.

[0196] The threshold for determining whether to activate cooling is the light threshold.

[0197] By substituting the light intensity and cloud parameters into the solar radiation attenuation model to calculate the actual shading coefficient of the cloud layer on the light, and then combining it with the light resistance energy consumption threshold of the vehicle refrigerator 1 refrigeration system, a critical indicator for determining whether light avoidance protection needs to be activated is determined, namely the judgment threshold. This threshold can be adjusted in real time according to the dynamic changes of the cloud layer to avoid the protection strategy being falsely triggered due to light fluctuations.

[0198] S906: Cooling is performed when the shading parameter is greater than the judgment threshold.

[0199] When the occlusion parameter is greater than the judgment threshold, it means that the cloud or shadow can cover the refrigerator, thereby enabling it to cool.

[0200] S907: When the occlusion parameter is not greater than the judgment threshold, determine the displacement information based on the shadow area and position parameters, and issue a displacement suggestion based on the displacement information.

[0201] Displacement suggestions refer to voice or text messages that prompt the driver to move the vehicle to a shaded area, delivered via external devices such as mobile phones.

[0202] When the occlusion parameter is not greater than the judgment threshold, it means that the cloud or shadow cannot cover the refrigerator. The location, range and duration characteristics of the identified shadow area, as well as the optimal placement point coordinates and spatial adaptation size in the location parameters, are used to calculate the optimal path, movement distance and turning angle of the vehicle refrigerator 1 to the target shadow area through a spatial path planning algorithm, i.e. displacement information. Then, based on the displacement information, a visual operation guide is generated to issue displacement suggestions to the user, including the target location, movement steps and precautions, to assist the user or automatic actuator in completing efficient light-avoidance relocation.

[0203] Based on the same inventive concept, embodiments of the present invention provide a power supply control system based on an on-board cooling system, comprising: The acquisition module is used to acquire power consumption parameters, travel parameters, operation commands, current temperature, and target temperature. A memory for storing a program that implements a power supply control method based on an on-board refrigeration system as described in any of the above claims; The processor loads and executes programs from memory.

[0204] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0205] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A power supply control method based on an on-board cooling system, characterized in that, include: Collect vehicle power consumption and travel parameters; The current load is determined based on electricity consumption parameters, and navigation information and map data are determined based on travel parameters. Determine the destination type based on navigation information, and determine the destination environment information based on map data; When the destination type and destination environment information are inconsistent, a backup power reminder is issued to collect operating instructions, the current temperature of the storage space, and the target temperature. In response to an operation command or when the destination type and destination environment information are consistent, the cooling time is determined based on the target temperature and the current temperature, and the detection is performed based on the power consumption parameters and the current load using a preset backup power detection method to output the detection results. Temperature is adjusted based on the test results and cooling time. After adjustment, backup power is provided based on the current load using a preset backup power method.

2. The power supply control method based on an on-board cooling system according to claim 1, characterized in that, Methods for determining test results include: Collect the remaining electrical energy of the preset energy storage battery; Determine the refueling time based on the current load and remaining battery power, and determine the estimated travel time based on navigation information; When the sum of the recharge time and the cooling time is not less than the expected driving time, the temperature is adjusted according to the cooling time, and the test result is to immediately switch to backup power; When the sum of the recharge time and the cooling time is less than the estimated driving time, the waiting time is calculated based on the recharge time and the estimated driving time, and the detection result is delayed backup power. The waiting time and recharge time are updated based on the cooling time until the sum of the recharge time and cooling time equals the estimated driving time. At this point, the test result is corrected from delayed backup power to immediate backup power.

3. The power supply control method based on an on-board cooling system according to claim 1, characterized in that, Methods for determining the target temperature include: Collect information about items within the storage space; Match the minimum temperature and insulation temperature based on the item information; Determine the rate threshold and ambient temperature based on map data; The heating rate is determined based on the lowest temperature and the ambient temperature. When the heating rate is not greater than the rate threshold, the target temperature is updated based on the lowest temperature. When the heating rate exceeds the rate threshold, the target temperature is updated based on the holding temperature.

4. The power supply control method based on an on-board cooling system according to claim 3, characterized in that, Also includes: Collect cooling coefficient and freezing temperature; Determine the freezing temperature difference based on the freezing temperature and the target temperature; The cooling start threshold is determined based on the cooling time and the cooling coefficient. When the freezing temperature difference is not greater than the cooling start threshold, the freezing temperature difference is updated according to the cooling start threshold. The temperature is adjusted by activating cooling based on the freezing temperature difference to update the heating rate; When the freezing temperature difference exceeds the cooling start threshold, the cooling supply is activated based on the freezing temperature difference to adjust the temperature and update the heating rate.

5. The power supply control method based on an on-board cooling system according to claim 4, characterized in that, Methods for temperature regulation also include: In response to a power outage command, the cold storage threshold is determined based on the freezing temperature difference; The cold air flow rate is determined based on the cold storage threshold; The cooling area is determined based on the cold air velocity and the cooling coefficient. Cooling is provided based on the cooling area, and the freezing temperature difference is updated. Match the cooling threshold according to the current temperature; Cooling will stop when the temperature difference between the freezing and refrigeration points is less than the cooling threshold or in response to a power supply command.

6. The power supply control method based on an on-board cooling system according to claim 1, characterized in that, Also includes: Collect vehicle parameters, current location solar angle parameters, and light intensity; The solar incidence angle on the refrigerator surface is calculated based on the solar angle parameters, and the orientation angle is determined based on the vehicle parameters. Match the incident angle threshold based on the orientation angle, and determine the light intensity threshold based on the current time; When the solar incidence angle is less than the incidence angle threshold and the light intensity is greater than the light intensity threshold, the location and parameters of the acquisition device are recorded. The coverage area is determined based on the solar incidence angle and equipment parameters, and the coverage threshold is determined based on the equipment parameters. When the coverage area is not greater than the coverage threshold, the shading parameters are determined according to the solar incidence angle, and shading is carried out using the shading parameters. When the coverage area is greater than the coverage threshold, the light-avoidance position is determined based on the equipment location and vehicle parameters; Based on the angle of solar incidence, the optimal location for sun protection with the smallest coverage area is selected from the available locations, and the location is then moved to avoid sunlight.

7. The power supply control method based on an on-board cooling system according to claim 6, characterized in that, Methods for achieving light protection using light-shielding parameters include: Collect the preset deployment parameters and shading response time of the light-shielding plate (4); Determine the unfolding angle range based on the unfolding parameters; The target deployment angle of the sunshade (4) is determined based on the angle of solar incidence; The unfolded area is determined based on the coverage area and unfolding parameters; The unfolded area and the target unfolding angle are used as light-avoidance parameters.

8. The power supply control method based on an on-board cooling system according to claim 6, characterized in that, Also includes: Based on the angle of solar incidence and the vehicle's orientation angle, determine the local light intensity corresponding to each shaded position; Based on the local light intensity, the location with the least light is selected as the effective light-shielding area; From the effective light-shielding area, select the location with the smallest corresponding coverage area as the optimal light-shielding orientation, and update the coverage area; The movement parameters are determined based on the optimal light-avoidance orientation; The secondary light-shielding parameters are determined based on the movement parameters and the coverage area; Move the light shield to the optimal light-shielding position using the movement parameters, and adjust the light shield using the secondary light-shielding parameters (4).

9. A power supply control method based on an on-board cooling system according to claim 6, characterized in that, Also includes: In response to power supply commands, it acquires environmental images; Determine environmental parameters, shaded areas, and meteorological parameters based on environmental images; The occlusion parameters and location parameters are determined based on environmental parameters; Cloud parameters are determined based on meteorological parameters, and light intensity is updated. The judgment threshold is determined based on light intensity and cloud parameters; Cooling is initiated when the shading parameter exceeds the judgment threshold. When the occlusion parameter is not greater than the judgment threshold, the displacement information is determined based on the shadow area and position parameters, and a displacement suggestion is issued based on the displacement information.

10. A power supply control system based on an on-board cooling system, characterized in that, include: The acquisition module is used to acquire power consumption parameters, travel parameters, operation commands, current temperature, and target temperature. A memory for storing a program that implements a power supply control method based on an on-board cooling system according to any one of claims 1 to 9; The processor loads and executes programs from memory.

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