Vehicle-mounted battery voltage stabilizing method and system

Abstract

The application relates to a vehicle-mounted battery voltage stabilizing method and system, and relates to the technical field of vehicle-mounted batteries. The method comprises the following steps: collecting a detection voltage of a vehicle-mounted battery and a vehicle type; calling a reference voltage range from the vehicle type; calculating a deviation voltage by the detection voltage and the reference voltage range according to an exceeding condition of the detection voltage and the reference voltage range; collecting a continuous duration based on the detection voltage; obtaining an auxiliary electric quantity by the deviation voltage and the continuous duration; selecting a preset solar storage device to output according to an exceeding condition of the auxiliary electric quantity and a preset solar storage electric quantity, or obtaining operating power by the auxiliary electric quantity and the continuous duration; updating the operating power based on the vehicle type, and controlling a preset engine to operate by the operating power. The application has the effect of improving the safety of vehicle driving.

Description

Technical Field

[0001] This invention relates to the technical field of vehicle batteries, and in particular to a method and system for stabilizing the voltage of vehicle batteries. Background Technology

[0002] A vehicle battery is an energy storage device that provides electrical energy to various electrical systems in a vehicle.

[0003] When a vehicle is running, the onboard battery, as one of the vehicle's primary energy sources, is responsible for storing electrical energy obtained from charging the grid, providing a continuous energy source for the vehicle. The capacity of the onboard battery directly determines the driving range of a pure electric vehicle, or the pure electric driving capability of a hybrid vehicle.

[0004] During vehicle operation, if there are operations such as rapid acceleration and hill climbing, the load on the vehicle battery increases, causing the battery voltage to fluctuate beyond the threshold, resulting in uncontrolled power output and increasing driving safety hazards. Summary of the Invention

[0005] To improve vehicle driving safety, this invention provides a method and system for stabilizing the voltage of an on-board battery.

[0006] In a first aspect, the present invention provides a method for stabilizing the voltage of an on-board battery, which adopts the following technical solution:

[0007] A method for stabilizing the voltage of an on-board battery includes:

[0008] S10: Collect the detection voltage of the vehicle battery and the vehicle type;

[0009] S11: Retrieve the reference voltage range from the vehicle type;

[0010] S12: Based on the deviation of the detected voltage from the reference voltage range, the deviation voltage is calculated using the detected voltage and the reference voltage range.

[0011] S13: Acquire duration based on detected voltage;

[0012] S14: Obtain auxiliary power by measuring the deviation voltage and duration;

[0013] S15: Depending on whether the auxiliary power exceeds the preset solar storage power, select and control the preset solar storage device to output power, or obtain the operating power by using the auxiliary power and duration.

[0014] S16: Update operating power based on vehicle type and control preset engine operation based on operating power.

[0015] By adopting the above technical solution, the deviation voltage is obtained by analyzing the detected voltage and vehicle type. The auxiliary power is obtained based on the deviation voltage and duration. By checking whether the auxiliary power exceeds the preset solar storage power, the solar storage device can be controlled to output at the deviation voltage, or the engine can be controlled to run at the operating power. This enables the solar storage device or the engine to assist the vehicle battery in powering the vehicle, keeping the voltage fluctuation of the vehicle battery within an acceptable range and improving the safety of vehicle operation.

[0016] Optional, also includes:

[0017] S20: Collect vehicle operation information;

[0018] S21: Retrieve the type of operating equipment from vehicle operation information;

[0019] S22: Obtain the labeled device type based on the type of operating device and duration;

[0020] S23: Obtain solar control power by marking the device type;

[0021] S24: Control the solar storage device to supply power to the marked device type with solar control power and update the operating power based on the solar control power.

[0022] Optional, also includes:

[0023] S30: Collect vehicle location, current time period, and detection path;

[0024] S31: Obtain the corresponding historical time period based on the current time period;

[0025] S32: Obtain the remaining path by detecting the path and vehicle position;

[0026] S33: Retrieve historical traffic conditions for the remaining routes during the corresponding historical time periods;

[0027] S34: Based on historical road conditions, preset driving habits, and vehicle operating information, determine the type and power of the detection equipment, and control the type of detection equipment to reduce the power of the detection equipment.

[0028] Optional methods for determining driving habits include:

[0029] S40: Retrieve historical changes in vehicle speed from vehicle operation information;

[0030] S41: Use the detection path of historical speed changes as the historical path, and use the vehicle position on the historical path as the historical position.

[0031] S42: Collect other historical locations along the historical path;

[0032] S43: Calculate the closest distance between a historical location and other historical locations as the historical vehicle spacing;

[0033] S44: Based on historical other locations and vehicle operation information, mark the changed vehicle speed;

[0034] S45: Define the marked change speed corresponding to the historical change speed that exceeds the preset baseline change speed as the target change speed.

[0035] S46: Combine target speed changes with historical vehicle spacing to determine driving habits.

[0036] Optional methods for determining driving habits include:

[0037] S50: The time period of the spacing is obtained based on historical vehicle spacing, historical changes in vehicle speed, and marked changes in vehicle speed;

[0038] S51: Obtain the interval position based on the interval's duration and the detection path;

[0039] S52: Collect historical intersecting vehicles based on interval positions and detection paths;

[0040] S53: Obtain the intersection time point by using historical intersection vehicles, vehicle operation information, and interval positions;

[0041] S54: Update historical vehicle speeds based on intersection time points;

[0042] S55: Define the intersection point corresponding to the historical speed change that exceeds the preset baseline speed change as the mark time point, and combine the mark time point with the historical speed change to obtain driving habits.

[0043] Optional methods for determining driving habits include:

[0044] S60: Retrieve slope location and detection slope from the detection path;

[0045] S61: Retrieve the vehicle speed based on the gradient change at the slope location from the vehicle operation information;

[0046] S62: The time point corresponding to the vehicle speed change in gradient is taken as the gradient change time point;

[0047] S63: Obtain adjacent curvature paths based on slope location and detection path;

[0048] S64: Identify adjacent curvature positions of adjacent curvature paths from the detection path;

[0049] S65: Calculate the distance between adjacent curvature positions and slope positions as the detection slope spacing;

[0050] S66: Define the detection slope and the detection slope distance between the slope change speed that exceeds the preset baseline change speed as the marked slope and the marked slope distance.

[0051] S67: Based on the marked slope and the marked slope spacing, it is incorporated into driving habits.

[0052] By adopting the above technical solution, driving habits are analyzed to obtain the user's historical speed changes under different road conditions. This facilitates the prediction of situations where changes in vehicle speed cause voltage fluctuations in the vehicle battery to exceed the allowable range. Furthermore, the power of the control and detection equipment is reduced in advance to minimize voltage fluctuations in the vehicle battery and improve vehicle driving safety.

[0053] Optionally, methods for obtaining the type and power of the testing equipment include:

[0054] S70: Collect environmental detection information for the remaining path;

[0055] S71: Obtain remaining road conditions by comparing the remaining route with historical road conditions;

[0056] S72: Based on driving habits and remaining road conditions, obtain the marked voltage, arrival time and remaining driving speed, and update the environmental detection information with the arrival time.

[0057] S73: Based on the situation where the marked voltage exceeds the range of the reference voltage, the remaining driving speed and the remaining path are used to obtain the remaining operating power, and the engine is controlled to run at the arrival time point using the remaining operating power;

[0058] S74: Select the equipment type based on the operating equipment type and the marked voltage;

[0059] S75: When the selected equipment type includes the preset air conditioning equipment type, the detection equipment type and detection equipment power are obtained through environmental detection information, air conditioning equipment type and marked voltage.

[0060] Optionally, methods for obtaining the type and power of the testing equipment also include:

[0061] S80: Collects the temperature inside the vehicle;

[0062] S81: The increase in environmental heat is obtained by using environmental detection information, remaining driving speed, and remaining path.

[0063] S82: The air conditioner's operating power is obtained by adding heat based on the detected temperature and ambient temperature;

[0064] S83: Retrieve solar radiation information at the arrival time from environmental monitoring information;

[0065] S84: Obtain the direction of illumination by using information about solar illumination and the vehicle's position;

[0066] S85: Obtain the number of blocks based on the direction of illumination and a preset glass blocking device;

[0067] S86: Obtain the shading heat and shading power by using the number of shadings and solar radiation information, and update the air conditioner operating power with the shading heat.

[0068] S87: Calculate the difference in air conditioner operating power before and after the update to obtain the reduction in air conditioner power;

[0069] S88: Compare the magnitude of the air conditioner's power reduction and the power of the shielding to select the air conditioner type and the air conditioner's power reduction as the detection device type and detection device power, and control the operation of the preset glass shielding device based on the number of shielding and the power of the shielding.

[0070] By adopting the above technical solution, by analyzing the magnitude of the air conditioner's power reduction and the power of the shielding, the type of air conditioner and the power reduction of the air conditioner are selected as the detection equipment type and detection equipment power. Furthermore, the operation of the preset glass shielding device is controlled by the number of shielding devices and the power of the shielding. In this way, the operating power of the air conditioner can be reduced while maintaining a constant temperature inside the vehicle, thereby indirectly reducing the operating load of the vehicle battery.

[0071] Alternatively, methods for obtaining increased heat from the environment include:

[0072] S90: Retrieve the surrounding building types around the remaining path from the environmental monitoring information;

[0073] S91: Obtain the remaining time point by using the remaining path and remaining driving speed;

[0074] S92: Retrieve solar monitoring information for the remaining time points from environmental monitoring information;

[0075] S93: Based on detected solar information and surrounding building types, the shadow range and illumination range are obtained;

[0076] S94: Based on driving habits, remaining road conditions, shadow range and illumination range, obtain the shadow vehicle speed and the illumination vehicle speed;

[0077] S95: Combine the shadow range, illumination range, shadow vehicle speed and illumination vehicle speed to obtain the shadow duration and illumination duration;

[0078] S96: Retrieve ambient temperature value from environmental monitoring information;

[0079] S97: Heat dissipation is determined based on the duration of shadow, vehicle type, and ambient temperature.

[0080] S98: The heat detected is obtained by measuring the duration of irradiation, solar information, and vehicle type.

[0081] S99: Combines heat dissipation and heat detection to obtain the increased heat in the environment.

[0082] Secondly, this application provides an on-board battery voltage stabilization system, which adopts the following technical solution:

[0083] An on-board battery voltage stabilization system, comprising:

[0084] The acquisition module is used to acquire the detection voltage, vehicle type, and duration.

[0085] A memory used to store a program for a method of regulating the voltage of an on-board battery;

[0086] The processor is used to load and execute programs stored in memory.

[0087] In summary, this application includes at least one of the following beneficial technical effects:

[0088] 1. By analyzing the detected voltage and vehicle type, the deviation voltage is obtained. Based on the deviation voltage and duration, the auxiliary power is obtained. By checking whether the auxiliary power exceeds the preset solar storage power, the system can choose to control the solar storage device to output at the deviation voltage or control the engine to run at the operating power. This enables the solar storage device or engine to assist the vehicle battery in powering the vehicle, keeping the voltage fluctuation of the vehicle battery within the allowable range and improving the safety of vehicle operation.

[0089] 2. By analyzing driving habits, we can obtain the user's historical speed changes under different road conditions. This will help us predict situations where speed changes cause voltage fluctuations in the vehicle battery that exceed the allowable range. We can also control the type of detection equipment to reduce power in advance, thereby reducing voltage fluctuations in the vehicle battery and improving vehicle driving safety.

[0090] 3. By analyzing the magnitude of the reduction in air conditioning power and the power of the shielding, the type of air conditioning equipment and the power reduction of air conditioning are selected as the detection equipment type and detection equipment power. The operation of the preset glass shielding device is controlled by the number of shielding and the shielding power. In this way, the operating power of the air conditioning is reduced while the temperature inside the vehicle remains constant, thereby indirectly reducing the operating load of the vehicle battery. Attached Figure Description

[0091] Figure 1 This is a flowchart of a method for stabilizing the voltage of an on-board battery according to an embodiment of the present invention;

[0092] Figure 2 This is a flowchart of the method for determining driving habits according to an embodiment of the present invention;

[0093] Figure 3 This is a flowchart of a method for obtaining the type and power of a detection device according to an embodiment of the present invention. Detailed Implementation

[0094] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0095] Reference Figure 1 This application discloses a method for stabilizing the voltage of an on-board battery, comprising the following steps:

[0096] S10: Collect the detection voltage of the vehicle battery and the vehicle type.

[0097] The detection voltage refers to the voltage output by the vehicle battery, which can be obtained from parameters detected by a voltage sensor preset on the vehicle battery. The vehicle type refers to the type of vehicle containing the vehicle battery, which can be retrieved from the system.

[0098] S11: Retrieve the reference voltage range from the vehicle type.

[0099] The reference voltage range refers to the range of voltage fluctuations that the vehicle battery can tolerate. The reference voltage range is obtained by retrieving the reference voltage range from the vehicle type.

[0100] S12: Based on the deviation of the detection voltage from the reference voltage range, the deviation voltage is calculated using the detection voltage and the reference voltage range.

[0101] Deviation voltage refers to the deviation value between the detected voltage and the reference voltage range. By analyzing the deviation of the detected voltage from the reference voltage range, when the detected voltage is greater than the maximum value of the reference voltage range or less than the minimum value of the reference voltage range, it indicates that the driving conditions of the vehicle have increased the load on the vehicle battery. The difference between the detected voltage and the maximum or minimum value of the reference voltage range is then calculated as the deviation voltage.

[0102] S13: Acquire duration based on detected voltage.

[0103] Duration refers to the continuous time during which the detected voltage of the vehicle battery does not fall within the reference voltage range. Timing starts when the detected voltage first exceeds the reference voltage range and continues until the detected voltage returns to the reference range. The timing result is then used as the duration.

[0104] S14: Obtain auxiliary power by measuring the deviation voltage and duration.

[0105] Auxiliary power refers to the total amount of electrical energy required to restore the vehicle battery voltage to the reference voltage range and maintain stability. It is calculated by considering the voltage deviation, duration, and rated discharge current for the vehicle type. The calculation method for auxiliary power is common knowledge to those skilled in the art and will not be elaborated upon here.

[0106] S15: Depending on whether the auxiliary power exceeds the preset solar storage power, select and control the preset solar storage device to output power, or obtain the operating power by using the auxiliary power and duration.

[0107] A solar storage device is a device pre-installed on a vehicle to store solar energy converted into electrical energy. It includes solar photovoltaic panels and supercapacitors. The solar stored power refers to the amount of electricity stored in the solar storage device. The solar stored power is collected and updated in real time by sensors.

[0108] Operating power refers to the mechanical power output of the engine preset in the vehicle, which is analyzed by monitoring the balance between auxiliary power and solar-stored power. When the auxiliary power does not exceed the solar-stored power, it indicates that the stored power is sufficient to provide auxiliary power, restoring the vehicle battery voltage to the reference voltage range. In this case, the solar-stored power is controlled to output a preset target current to restore the vehicle battery voltage to the reference voltage range. The target current is the rated current output by the solar-stored power as set by the technicians.

[0109] When the auxiliary power exceeds the solar storage power, it means that the power stored in the solar storage device is insufficient to provide auxiliary power and restore the voltage of the vehicle battery to the reference voltage range. Then, the operating power is matched from the preset auxiliary reference table by the auxiliary power and the duration.

[0110] The auxiliary reference table stores the operating power corresponding to different auxiliary power and duration. The larger the auxiliary power and duration, the greater the operating power. The parameters in the auxiliary reference table are set in advance by those skilled in the art based on actual conditions, and will not be elaborated here.

[0111] S16: Update operating power based on vehicle type and control preset engine operation based on operating power.

[0112] The rated power range and load characteristics of the engine are retrieved from the vehicle type, and the operating power obtained in S15 is corrected to obtain a new operating power, which is then used to control the engine operation.

[0113] Also includes:

[0114] S20: Collect vehicle operation information.

[0115] Vehicle operation information refers to the working status and related parameters of various electrical devices and the vehicle itself during operation, including device on / off status, real-time power, cumulative running time, and vehicle speed.

[0116] S21: Retrieve the type of operating equipment from the vehicle operation information.

[0117] The type of operating equipment refers to the type of each electrical device and its corresponding equipment during vehicle operation. The type of operating equipment is retrieved from the vehicle operation information.

[0118] S22: Obtain the marked device type based on the type of operating device and duration.

[0119] The labeled device type refers to the type of operating device that runs for a certain duration. The type of operating device that runs for a certain duration is used as the labeled device type.

[0120] S23: Obtain solar control power by marking the device type.

[0121] Solar control power refers to the power operated by the marked device type. It is obtained by retrieving the power operated by the marked device type over a continuous period of time as the solar control power.

[0122] S24: Control the solar storage device to supply power to the marked device type with solar control power and update the operating power based on the solar control power.

[0123] The solar storage device is controlled to supply power to the marking device type using solar control power, thereby reducing the load on the vehicle battery from the marking device type. Consequently, the auxiliary power required by the engine is reduced. A new operating power is obtained by analyzing the solar control power. The method for analyzing the new operating power is common knowledge to those skilled in the art and will not be elaborated upon here.

[0124] Also includes:

[0125] S30: Collect vehicle location, current time period, and detection path.

[0126] Vehicle location refers to the current geographical coordinates of the vehicle, which can be collected in real time through the vehicle's GPS or navigation module.

[0127] The current time period refers to the specific time interval during which the vehicle is in motion, which is retrieved from the vehicle's real-time clock by the system.

[0128] The detection path refers to the total route traveled by the vehicle, which can be retrieved from the vehicle's navigation module via the system.

[0129] S31: Obtain the corresponding historical time period based on the current time period.

[0130] The historical corresponding time period refers to the historical travel time period that is consistent with the current time period in terms of time characteristics (e.g., if the current time is Monday 14:00 to 14:30, then the historical corresponding time period is the Monday 14:00 to 14:30 obtained within the past 4 weeks). The historical corresponding time period is obtained by analyzing the current time period. The method for obtaining the historical corresponding time period is common knowledge to those skilled in the art and will not be elaborated here.

[0131] S32: Obtain the remaining path by detecting the path and vehicle position.

[0132] The remaining path refers to the section of road from the vehicle's current location to the end of the detection path that has not yet been traveled, including information such as road type (highway, urban road), distance, and gradient. The remaining path is defined as the route between the end point of the detection path and the vehicle's current location.

[0133] S33: Retrieve the historical traffic conditions for the remaining routes during the corresponding historical time periods.

[0134] Historical traffic conditions refer to the traffic status of the remaining route during the corresponding historical time period, including average vehicle speed, congested sections, and travel time. The historical traffic conditions are obtained by retrieving and summarizing the traffic data for the remaining route during the corresponding historical time period from the navigation module.

[0135] S34: Based on historical road conditions, preset driving habits, and vehicle operating information, determine the type and power of the detection equipment, and control the type of detection equipment to reduce the power of the detection equipment.

[0136] Driving habits refer to the characteristics of a user's driving behavior under different road conditions, including acceleration frequency, deceleration frequency, following distance, and use of equipment such as air conditioning.

[0137] The detection equipment type refers to the type of marking equipment that can reduce power without affecting vehicle operation. The detection equipment power refers to the power that the detection equipment type needs to reduce. The detection equipment type and detection equipment power are obtained by combining and analyzing historical road conditions, preset driving habits and vehicle operation information, and the detection equipment type is controlled to adjust the power according to the detection equipment power.

[0138] Reference Figure 2 Methods for determining driving habits include:

[0139] S40: Retrieve historical changes in vehicle speed from vehicle operation information.

[0140] Historical speed change refers to the change in vehicle speed per unit time before the current time period. It is obtained by retrieving the speed change values ​​of each vehicle before the current time period from the vehicle operation information.

[0141] S41: Use the detection path of historical speed changes as the historical path, and use the vehicle position on the historical path as the historical position.

[0142] Historical paths refer to detection paths where historical speed changes have occurred. By retrieving the detection paths corresponding to the historical speed changes during the corresponding time periods, the paths in the detection paths where historical speed changes have occurred are taken as historical paths.

[0143] Historical location refers to the vehicle's position on a historical path, which is used as the historical location.

[0144] S42: Collect other historical locations along the historical path.

[0145] Other historical locations refer to the locations of other vehicles along the historical path, obtained by using the vehicle locations from the onboard GPS or navigation modules of other vehicles.

[0146] S43: Calculate the closest distance between a historical location and other historical locations as the historical vehicle spacing.

[0147] Historical vehicle spacing refers to the shortest straight-line distance between a historical location and other historical locations. It is calculated by taking the shortest distance between a historical location and other historical locations. Historical vehicle spacing represents the distance between a user's vehicle and the vehicle in front of it when the user is driving.

[0148] S44: Based on historical other locations and vehicle operation information, mark the changed vehicle speed.

[0149] Marked change speed refers to the historical change speed of vehicles at other historical locations. It is obtained by retrieving the vehicle operation information of other vehicles at the closest historical vehicle distance and retrieving the historical change speed of the corresponding time period at the historical location from the vehicle operation information of other vehicles as the marked change speed.

[0150] S45: Define the marked change speed corresponding to the historical change speed that exceeds the preset baseline change speed as the target change speed.

[0151] The reference speed variation is the minimum speed variation set by technicians that would easily cause the vehicle battery voltage to exceed the reference voltage range.

[0152] The target change speed refers to the marked change speed at other historical locations corresponding to the historical change speed that exceeds the reference change speed.

[0153] In this embodiment, if the speed change of the target vehicle is small during its journey, the distance between the target vehicle and the target vehicle gradually decreases as the user vehicle approaches the target vehicle, and the user vehicle needs to slow down.

[0154] If the target vehicle is traveling at a different speed, and the speed change is large, then as the user's vehicle travels behind the target vehicle, the distance between the target vehicle and the target vehicle gradually increases, and the user's vehicle will experience acceleration.

[0155] S46: Combine target speed changes with historical vehicle spacing to determine driving habits.

[0156] By combining the target vehicle speed change (reflecting the impact of other vehicles' driving behavior on the user's vehicle) with historical vehicle distances (reflecting the following distance of the user's vehicle), the driving characteristics of this vehicle (refer to S45) are analyzed to obtain driving habits.

[0157] Methods for determining driving habits also include:

[0158] S50: The time period during which the spacing exists is determined based on historical vehicle spacing, historical changes in vehicle speed, and marked changes in vehicle speed.

[0159] The safe distance is the pre- and post-vehicle safe distance set by technicians. The distance existence period refers to the time period during which historical vehicle distances exceed the safe distance. This is achieved by continuously analyzing historical changes in vehicle speed and the speeds corresponding to marked changes in vehicle speed to obtain new historical vehicle distances. These new historical vehicle distances are then compared with the safe distance, and the time periods corresponding to historical vehicle distances exceeding the safe distance are defined as the distance existence period.

[0160] In this embodiment, if there are changes in other vehicles preceding the user's vehicle, the historical vehicle spacing will change accordingly, which will not be elaborated here.

[0161] S51: The interval position is obtained based on the time period of the interval and the detection path.

[0162] Interval position refers to the location where historical vehicle spacing occurs. It is determined by detecting the vehicle positions corresponding to the time period in the spacing in the detection path, and taking the center position of the historical vehicle spacing before that vehicle position as the interval position.

[0163] S52: Collect historical intersecting vehicles based on interval positions and detection paths.

[0164] Historical merging vehicles refer to vehicles that appear at intervals in the detection path but on other paths. These are identified by retrieving the paths of other vehicles that never appeared on the detection path and identifying those that intersected at these intervals. For example, when a user's vehicle passes an intersection, there might be other vehicles turning at the corresponding intersection to merge into the user's detection path. In this case, the other vehicles preceding the user's vehicle need to be updated.

[0165] S53: Obtain the intersection time point by using historical intersection vehicles, vehicle operation information, and interval positions.

[0166] The intersection time point refers to the time when historically intersecting vehicles appeared at the interval position. It is obtained by analyzing the vehicle movement information of historically intersecting vehicles to determine the time when they reached the interval position. The analysis method for the intersection time point is common knowledge to those skilled in the art and will not be elaborated upon here.

[0167] S54: Update historical vehicle speeds based on the intersection time point.

[0168] The changed vehicle speed at the intersection time point is retrieved again from the vehicle operation information as the new historical changed vehicle speed.

[0169] S55: Define the intersection point corresponding to the historical speed change that exceeds the preset baseline speed change as the mark time point, and combine the mark time point with the historical speed change to obtain driving habits.

[0170] The marked time point refers to the intersection time point corresponding to the historical speed changes that exceed the reference speed change. The intersection time point corresponding to the historical speed changes that exceed the reference speed change is used as the marked time point.

[0171] By combining the marked time points with historical changes in vehicle speed, the analysis is conducted on the changes in vehicle speed that occur when the user observes other vehicles merging into the detection path. When a vehicle merges, a new historical vehicle distance is obtained between the user and the historically intersecting vehicle. Referring to S45 and S46, the driving habits corresponding to the acceleration and deceleration effects of other merged vehicles on the user's vehicle are obtained.

[0172] Methods for determining driving habits also include:

[0173] S60: Retrieve slope location and detection slope from the detection path.

[0174] Slope location refers to the geographic coordinates of road segments with slopes (uphill or downhill) within the detection path. Detected slope refers to the slope value corresponding to the slope location; a positive detected slope indicates an uphill slope, and a negative detected slope indicates a downhill slope. Slope location and detected slope can be retrieved from the detection path.

[0175] S61: Retrieve the slope change and vehicle speed from the vehicle operation information.

[0176] Gradient change speed refers to the change in vehicle speed when the vehicle reaches a slope position. It is obtained by retrieving the change in vehicle speed at the time point when the vehicle moves to the slope position from the vehicle operation information.

[0177] S62: The time point corresponding to the vehicle speed change in gradient is taken as the gradient change time point.

[0178] The gradient change time point refers to the time point at which the vehicle speed changes with the gradient. The gradient change time point is defined as the time point corresponding to the gradient change speed.

[0179] S63: Obtain adjacent curvature paths based on slope location and detection path.

[0180] Adjacent curvature paths refer to paths that have curves before and after a slope position. They are selected from the detected paths that have non-zero curvature before and after a slope position as adjacent curvature paths.

[0181] S64: Identify adjacent curvature positions of adjacent curvature paths from the detection path.

[0182] Adjacent curvature positions refer to the locations of adjacent curvature paths. They are identified by examining the locations of adjacent curvature paths within the detected path.

[0183] S65: Calculate the distance between adjacent curvature positions and slope positions as the detection slope spacing.

[0184] The detection slope spacing refers to the closest distance between adjacent curvature positions and slope positions. The detection slope spacing is calculated by measuring the distance between the nearest adjacent curvature position and the slope position.

[0185] S66: Define the detection slope and the detection slope distance between the slope change speed that exceeds the preset baseline speed change as the marked slope and the marked slope distance.

[0186] The marked slope refers to the detected slope value corresponding to the slope change speed exceeding the reference slope change speed. The marked slope spacing refers to the detected slope spacing corresponding to the slope change speed exceeding the reference slope change speed. The detected slope and the detected slope spacing corresponding to the slope change speed exceeding the reference slope change speed are defined as marked slope and marked slope spacing.

[0187] S67: Based on the marked slope and the marked slope spacing, it is incorporated into driving habits.

[0188] The impact of marked slope and marked slope spacing on user driving is analyzed. If the marked slope is ±5° and the marked slope spacing is 300 meters (the slope is followed by a curve), and the vehicle speed during the slope change is ±7 km / h (acceleration), then the driving habit includes "rapid acceleration near the curve after a steep slope".

[0189] If the marked slope is -3° (downhill) and the marked slope interval is 1000 meters (long curve after the slope), and the vehicle speed during the slope change is -6 km / h / s (deceleration), then the driving habit includes "deceleration on a gentle curve after a long downhill slope". Adding these characteristics to the driving habit model improves the description of driving behavior in complex terrain.

[0190] Methods for obtaining the type and power of the testing equipment include:

[0191] S70: Collect environmental detection information for the remaining path.

[0192] Environmental monitoring information refers to the environmental parameters around the location of the remaining path, including real-time temperature, light intensity, precipitation, and wind speed.

[0193] S71: Obtain remaining road conditions by comparing the remaining route with historical road conditions.

[0194] Remaining traffic conditions refer to the predicted traffic conditions of the remaining path in the current time period. This is achieved by adjusting the remaining path's traffic conditions based on historical traffic data (traffic data for the corresponding historical time periods) and combining this with real-time traffic information (such as real-time congestion reports from navigation platforms). The adjusted remaining path traffic conditions are then used as the final remaining traffic conditions. The methods for analyzing remaining traffic conditions are common knowledge to those skilled in the art and will not be elaborated upon here.

[0195] S72: Based on driving habits and remaining road conditions, obtain the marked voltage, arrival time and remaining driving speed, and update the environmental detection information with the arrival time.

[0196] The marked voltage refers to the voltage output by the vehicle battery when the user is traveling on the remaining route. The arrival time point refers to the time point when the user's vehicle is traveling on the remaining route. The remaining driving speed refers to the speed of the user's vehicle while traveling on the remaining route.

[0197] The remaining driving speed is calculated by weighting the estimated speeds for different road segments (e.g., 20 km / h for congested sections and 60 km / h for uncongested sections) retrieved from the remaining road conditions, combined with driving habits (e.g., the user's average speed on uncongested sections). The weighted calculation method for the remaining driving speed is based on weights pre-set by those skilled in the art and will not be elaborated upon here.

[0198] When the remaining driving speed is obtained, the system retrieves the time point when the user was traveling on the remaining route as the arrival time point.

[0199] The driving speed and congestion of other vehicles on the remaining road are retrieved to obtain the marked change speed of other vehicles on the remaining path. Based on the marked change speed and the user's vehicle, the user's historical change speed on the remaining path is obtained. Combining the change speed with the remaining driving speed and the user's usage of the operating equipment type, the voltage output by the vehicle battery is analyzed as the marked voltage. The method of marked voltage analysis is common knowledge to those skilled in the art and will not be elaborated here.

[0200] S73: Based on the situation where the marked voltage exceeds the range of the reference voltage, the remaining driving speed and the remaining path are used to obtain the remaining operating power, and the engine is controlled to run at the arrival time point using the remaining operating power.

[0201] Remaining operating power refers to the power the engine will operate while the user is traveling the remaining path. This is determined by analyzing whether the marked voltage exceeds the reference voltage range. When the marked voltage falls within the reference voltage range, the remaining duration is calculated using the remaining vehicle speed and remaining path, referring to S15. The marked voltage deviation between the marked voltage and the reference voltage range is then calculated. Finally, the remaining operating power is matched from the auxiliary lookup table using the marked voltage deviation and the remaining duration, and the engine is controlled to operate at the remaining operating power at the arrival time.

[0202] S74: Select the equipment type based on the type of operating equipment and the marked voltage.

[0203] The selected device type refers to the type of operating equipment in the vehicle when the on-board battery outputs a marked voltage that exceeds the reference voltage range. By retrieving the time period during which the marked voltage exceeds the reference voltage range, the type of operating equipment during that time period is selected as the device type.

[0204] S75: When the selected equipment type includes the preset air conditioning equipment type, the detection equipment type and detection equipment power are obtained through environmental detection information, air conditioning equipment type and marked voltage.

[0205] The air conditioning equipment type is the vehicle air conditioner set by the technician. When the selected equipment type includes the air conditioning equipment type, it means that the user used the vehicle air conditioner during the period when the marked voltage exceeded the reference voltage range. The detection equipment type and detection equipment power are obtained by analyzing the environmental detection information, the air conditioning equipment type and the marked voltage.

[0206] Reference Figure 3 Other methods for obtaining the type and power of the testing equipment include:

[0207] S80: Collects the temperature inside the vehicle.

[0208] The detected temperature refers to the temperature value inside the vehicle, which is the temperature value detected by a temperature sensor pre-installed inside the vehicle.

[0209] S81: The increase in environmental heat is obtained by using environmental detection information, remaining driving speed, and remaining path.

[0210] The increase in environmental heat refers to the total heat transferred from the external environment into the vehicle during the remaining journey. This is calculated by combining the light intensity (for solar radiation heat) and real-time air temperature (for convective heat) from environmental monitoring data, along with the remaining vehicle speed (lower speeds result in weaker convection and greater heat accumulation). The total increase in environmental heat is obtained by adding the radiative and convective heat using the heat transfer formulas (radiative heat = light intensity × light-receiving area × absorption coefficient, convective heat = temperature difference × wind speed coefficient).

[0211] The analytical methods for absorption coefficient and wind speed coefficient are common knowledge to those skilled in the art and will not be elaborated here.

[0212] S82: The air conditioner's operating power is obtained by adding heat based on the detected temperature and the environment.

[0213] Air conditioning operating power refers to the power output of the air conditioner to maintain the temperature inside the vehicle. It is calculated by taking the difference between the detected temperature and the real-time temperature of the outside environment as the temperature deviation value, based on the heat balance formula: Air conditioning operating power = (increased heat in the environment ÷ remaining driving time) + (temperature deviation value × vehicle interior heat capacity coefficient).

[0214] The vehicle interior heat capacity coefficient is retrieved from the vehicle type and reflects the heat storage capacity of the air and seats inside the vehicle.

[0215] S83: Retrieve solar radiation information at the arrival time from environmental monitoring information.

[0216] Solar illumination information refers to parameters such as solar radiation intensity, solar altitude angle, and solar azimuth angle corresponding to the remaining path at the arrival time. These parameters are retrieved from environmental monitoring information to obtain the solar radiation intensity, solar altitude angle, and solar azimuth angle at the location on the remaining path corresponding to the arrival time.

[0217] S84: The direction of illumination is determined by the information on solar illumination and the vehicle's position.

[0218] The direction of illumination refers to the direction in which the sun shines on the vehicle. The direction of illumination is obtained by analyzing the sun's illumination information and the vehicle's position.

[0219] S85: Obtain the number of blocks based on the direction of illumination and a preset glass blocking device.

[0220] The window shade is a smart dimming glass device designed by technicians that can change the tint of the car window to block solar radiation. Window shades are typically installed on the side windows of a vehicle.

[0221] The number of sunshades refers to the number of glass sunshades that can block the sun. This is determined by selecting windows on a vehicle that are close to the direction of sunlight and exposed to it, and counting the number of glass sunshades installed in each window. The count result is used as the number of sunshades.

[0222] S86: Obtain the shading heat and shading power by using the number of shadings and solar radiation information, and update the air conditioner operating power based on the shading heat.

[0223] The heat reduction from solar radiation entering the vehicle is reduced after the glass shielding devices are activated. The power reduction from solar radiation is the power required to operate the glass shielding devices that control the number of shields. The heat reduction from solar radiation is calculated by analyzing the area of ​​the vehicle exposed to sunlight through the number of glass shielding devices. The product of this percentage and the total radiant heat from solar radiation is then calculated. The power reduction from solar radiation is then retrieved from the device specifications (e.g., if each device has a rated power of 50W, and there are 2 shields, then the power reduction is 100W).

[0224] The method for updating the air conditioning operating power is: original air conditioning operating power - (heat blocked ÷ remaining driving time), that is, deducting the air conditioning load corresponding to the heat reduced by the blocking device.

[0225] S87: Calculate the difference in air conditioner operating power before and after the update to obtain the reduction in air conditioner power.

[0226] Air conditioner power reduction refers to the reduction in air conditioner operating power after the use of a glass shielding device. The power reduction is calculated by measuring the difference in air conditioner operating power before and after the upgrade.

[0227] S88: Compare the magnitude of the air conditioner's power reduction and the power of the shielding to select the air conditioner type and the air conditioner's power reduction as the detection device type and detection device power, and control the operation of the preset glass shielding device based on the number of shielding and the power of the shielding.

[0228] The analysis focuses on the magnitude of the reduction in air conditioning power and the power of the glass blocking device. If the reduction in air conditioning power is greater than the power of the glass blocking device, it indicates that the auxiliary opening of the glass blocking device and the reduction in the operating power of the air conditioning can indirectly reduce the load on the vehicle battery. Therefore, the type of air conditioning equipment and the reduction in air conditioning power are used as the detection equipment type and detection equipment power, and the operation of the glass blocking device is controlled by the number of blocks and the power of the blockage.

[0229] If the reduction in air conditioning power is not greater than the reduction in the power of the glass barrier, it means that the auxiliary opening of the glass barrier and the reduction in the operating power of the air conditioning cannot indirectly reduce the load on the vehicle battery. Therefore, no adjustment should be made to allow the engine to continue running.

[0230] Methods for obtaining heat from the environment include:

[0231] S90: Retrieve the surrounding building types around the remaining path from the environmental monitoring information.

[0232] The surrounding building type refers to the buildings on both sides of the remaining path and their corresponding building characteristics, including building height, density, and shading capacity. The surrounding building type is obtained by retrieving the surrounding buildings and their corresponding building height, density, and shading capacity from the environmental monitoring information and combining them.

[0233] S91: Obtain the remaining time point by using the remaining path and remaining driving speed.

[0234] The remaining time point refers to the time when a user arrives at different locations while traveling on the remaining path. The remaining time point is obtained by analyzing the remaining path and the remaining travel speed.

[0235] S92: Retrieve solar monitoring information for the remaining time points from environmental monitoring information.

[0236] Solar information detection refers to solar illumination information for the remaining time points, which is obtained by retrieving solar information for the remaining time points from environmental monitoring information.

[0237] S93: Based on the detected solar information and the type of surrounding buildings, the shadow range and illumination range are obtained.

[0238] The shadow range refers to the section of the road covered by the shadows cast by surrounding buildings at the remaining time point in the remaining path. The illumination range refers to the section of the road in the remaining path that is directly illuminated by the sun without any building shadows. The shadow range and illumination range are obtained by analyzing the detected solar information and the types of surrounding buildings. The analysis methods for the shadow range and illumination range are common knowledge to those skilled in the art and will not be elaborated here.

[0239] S94: Based on driving habits, remaining road conditions, shadow range and illumination range, obtain the shadow vehicle speed and illumination vehicle speed.

[0240] Shadow speed refers to the expected speed of a vehicle within the shaded area, while illumination speed refers to the expected speed of a vehicle within the illuminated area.

[0241] By combining the estimated average vehicle speed and driving habits (speed distribution corresponding to different following distances) in the remaining road conditions of the shaded road section or the illuminated area, the shaded vehicle speed and the illuminated vehicle speed are obtained. The analysis method of the shaded vehicle speed and the illuminated vehicle speed is common knowledge to those skilled in the art and will not be elaborated here.

[0242] S95: Combine the shadow range, illumination range, shadow vehicle speed and illumination vehicle speed to obtain the shadow duration and illumination duration.

[0243] The duration of shadow refers to the time a vehicle travels within the shadow area, while the duration of illumination refers to the time a vehicle travels within the illumination area. The duration of shadow is calculated by analyzing the distance along the remaining path within the shadow area and dividing the distance by the vehicle speed in the shadow area. The duration of illumination is calculated by analyzing the distance along the remaining path within the illumination area and dividing the distance by the vehicle speed in the shadow area.

[0244] S96: Retrieve ambient temperature values ​​from environmental monitoring information.

[0245] The ambient temperature value refers to the air temperature of the surrounding environment of the remaining path, which is obtained by retrieving the ambient temperature value from the environmental monitoring information.

[0246] S97: Heat dissipation is determined based on the duration of shadow, vehicle type, and ambient temperature.

[0247] Heat dissipation refers to the heat emitted by a vehicle to the external environment when it is driving in the shade. It is calculated by retrieving the total heat dissipation area of ​​the vehicle body from the vehicle type, and then calculating the shade duration × (ambient temperature value - detection temperature) × heat insulation coefficient × total heat dissipation area of ​​the vehicle body = heat dissipation.

[0248] S98: Heat is detected by measuring the duration of irradiation, solar information, and vehicle type.

[0249] The detected heat refers to the heat transmitted into the vehicle by solar radiation when the vehicle is driving within the irradiation range. It is calculated by retrieving the sun-receiving area and the absorption coefficient of the vehicle body to solar radiation from the vehicle type, and then calculating the irradiation duration × the radiation intensity in the detected solar information × the sun-receiving area × the absorption coefficient = detected heat.

[0250] S99: Combines heat dissipation and heat detection to obtain the increased heat in the environment.

[0251] The calculated heat gain is calculated as: heat detected (into the irradiated area) - heat dissipated (out of the shaded area) = heat gain in the environment.

[0252] Based on the same inventive concept, embodiments of the present invention provide an on-board battery voltage stabilization system, comprising:

[0253] The acquisition module is used to acquire detection voltage, vehicle type, duration, vehicle operation information, vehicle location, current time period, detection path, historical other locations, historical intersecting vehicles, environmental detection information, and detection temperature;

[0254] A memory used to store a program for a method of regulating the voltage of an on-board battery;

[0255] The processor is used to load and execute programs stored in memory.

[0256] 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.

[0257] 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 principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method for stabilizing the voltage of an on-board battery, characterized in that, include: S10: Collect the detection voltage of the vehicle battery and the vehicle type; S11: Retrieve the reference voltage range from the vehicle type; S12: Based on the deviation of the detected voltage from the reference voltage range, the deviation voltage is calculated using the detected voltage and the reference voltage range. S13: Acquire duration based on detected voltage; S14: Obtain auxiliary power by measuring the deviation voltage and duration; S15: Depending on whether the auxiliary power exceeds the preset solar storage power, select and control the preset solar storage device to output power, or obtain the operating power by using the auxiliary power and duration. S16: Update operating power based on vehicle type and control preset engine operation based on operating power; Also includes: S30: Collect vehicle location, current time period, and detection path; S31: Obtain the corresponding historical time period based on the current time period; S32: Obtain the remaining path by detecting the path and vehicle position; S33: Retrieve historical traffic conditions for the remaining routes during the corresponding historical time periods; S34: Based on historical road conditions, preset driving habits, and vehicle operating information, determine the type and power of the detection equipment, and control the type of detection equipment to reduce the power of the detection equipment. Methods for obtaining the type and power of the testing equipment also include: S80: Collects the temperature inside the vehicle; S81: The increase in environmental heat is obtained by using environmental detection information, remaining driving speed, and remaining path. S82: The air conditioner's operating power is obtained by adding heat based on the detected temperature and ambient temperature; S83: Retrieve solar radiation information at the arrival time from environmental monitoring information; S84: Obtain the direction of illumination by using information about solar illumination and the vehicle's position; S85: Obtain the number of blocks based on the direction of illumination and a preset glass blocking device; S86: Obtain the shading heat and shading power by using the number of shadings and solar radiation information, and update the air conditioner operating power with the shading heat. S87: Calculate the difference in air conditioner operating power before and after the update to obtain the reduction in air conditioner power; S88: Compare the magnitude of the air conditioner's power reduction and the power of the shielding to select the air conditioner type and the air conditioner's power reduction as the detection device type and detection device power, and control the operation of the preset glass shielding device based on the number of shielding and the power of the shielding.

2. The method for stabilizing the voltage of an on-board battery according to claim 1, characterized in that, Also includes: S20: Collect vehicle operation information; S21: Retrieve the type of operating equipment from vehicle operation information; S22: Obtain the labeled device type based on the type of operating device and duration; S23: Obtain solar control power by marking the device type; S24: Control the solar storage device to supply power to the marked device type with solar control power and update the operating power based on the solar control power.

3. The method for stabilizing the voltage of an on-board battery according to claim 1, characterized in that, Methods for determining driving habits include: S40: Retrieve historical changes in vehicle speed from vehicle operation information; S41: Use the detection path of historical speed changes as the historical path, and use the vehicle position on the historical path as the historical position. S42: Collect other historical locations along the historical path; S43: Calculate the closest distance between a historical location and other historical locations as the historical vehicle spacing; S44: Based on historical other locations and vehicle operation information, mark the changed vehicle speed; S45: Define the marked change speed corresponding to the historical change speed that exceeds the preset baseline change speed as the target change speed. S46: Combine target speed changes with historical vehicle spacing to determine driving habits.

4. The method for stabilizing the voltage of an on-board battery according to claim 3, characterized in that, Methods for determining driving habits also include: S50: The time period of the interval is obtained based on historical vehicle spacing, historical changes in vehicle speed, and marked changes in vehicle speed; S51: Obtain the interval position based on the interval's duration and the detection path; S52: Collect historical intersecting vehicles based on interval positions and detection paths; S53: Obtain the intersection time point by using historical intersection vehicles, vehicle operation information, and interval positions; S54: Update historical vehicle speeds based on intersection time points; S55: Define the intersection point corresponding to the historical speed change that exceeds the preset baseline speed change as the mark time point, and combine the mark time point with the historical speed change to obtain driving habits.

5. A method for stabilizing the voltage of an on-board battery according to claim 4, characterized in that, Methods for determining driving habits also include: S60: Retrieve slope location and detection slope from the detection path; S61: Retrieve the vehicle speed based on the gradient change at the slope location from the vehicle operation information; S62: The time point corresponding to the vehicle speed change in gradient is taken as the gradient change time point; S63: Obtain adjacent curvature paths based on slope location and detection path; S64: Identify adjacent curvature positions of adjacent curvature paths from the detection path; S65: Calculate the distance between adjacent curvature positions and slope positions as the detection slope spacing; S66: Define the detection slope and the detection slope distance corresponding to the slope change speed exceeding the preset baseline speed change as the marked slope and the marked slope distance. S67: Based on the marked slope and the marked slope spacing, driving habits are incorporated.

6. The method for stabilizing the voltage of an on-board battery according to claim 5, characterized in that, Methods for obtaining the type and power of the testing equipment include: S70: Collect environmental detection information for the remaining path; S71: Obtain remaining road conditions by comparing the remaining route with historical road conditions; S72: Based on driving habits and remaining road conditions, obtain the marked voltage, arrival time and remaining driving speed, and update the environmental detection information with the arrival time. S73: Based on the situation where the marked voltage exceeds the range of the reference voltage, the remaining driving speed and the remaining path are used to obtain the remaining operating power, and the engine is controlled to run at the arrival time point using the remaining operating power; S74: Select the equipment type based on the operating equipment type and the marked voltage; S75: When the selected equipment type includes the preset air conditioning equipment type, the detection equipment type and detection equipment power are obtained through environmental detection information, air conditioning equipment type and marked voltage.

7. The on-board battery voltage stabilization method according to claim 1, characterized in that, Methods for obtaining heat from the environment include: S90: Retrieve the surrounding building types around the remaining path from the environmental monitoring information; S91: Obtain the remaining time point by using the remaining path and remaining driving speed; S92: Retrieve solar monitoring information for the remaining time points from environmental monitoring information; S93: Based on detected solar information and surrounding building types, the shadow range and illumination range are obtained; S94: Based on driving habits, remaining road conditions, shadow range and illumination range, obtain the shadow vehicle speed and the illumination vehicle speed; S95: Combine the shadow range, illumination range, shadow vehicle speed and illumination vehicle speed to obtain the shadow duration and illumination duration; S96: Retrieve ambient temperature value from environmental monitoring information; S97: Heat dissipation is determined based on the duration of shadow, vehicle type, and ambient temperature. S98: The heat detected is obtained by measuring the duration of irradiation, solar information, and vehicle type. S99: Combines heat dissipation and heat detection to obtain the increased heat in the environment.

8. A vehicle-mounted battery voltage stabilization system, characterized in that, include: The acquisition module is used to acquire the detection voltage, vehicle type, and duration. A memory for storing a program that implements a vehicle battery voltage regulation method as described in any one of claims 1 to 7; The processor is used to load and execute programs stored in memory.

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