Vehicle-mounted battery voltage stabilization method and system

Abstract

The invention relates to a vehicle-mounted battery voltage stabilization method and system, and relates to the technical field of vehicle-mounted batteries, and the method comprises the steps: collecting the detection voltage of a vehicle-mounted battery and a vehicle type; calling a reference voltage range from the vehicle type; calculating a deviation voltage through the detection voltage and the reference voltage range according to the exceeding condition of the detection voltage and the reference voltage range; collecting a duration based on the detection voltage; the auxiliary electric quantity is obtained through the deviation voltage and the duration; according to the exceeding condition of the auxiliary electric quantity and the preset solar storage electric quantity, a preset solar storage device is selected to be controlled for output, or the operation power is obtained through the auxiliary electric quantity and the duration; and updating the operation power based on the vehicle type, and controlling preset engine operation at the operation power. The method has the effect of improving the safety of vehicle driving.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle-mounted batteries, in particular to a vehicle-mounted battery voltage stabilizing method and system. BACKGROUND

[0002] A vehicle-mounted battery is an energy storage device that provides power for various electrical systems of a vehicle.

[0003] When the vehicle is running, the vehicle-mounted battery, as one of the main energy sources of the vehicle, is responsible for storing the electrical energy obtained from the power grid charging and providing a continuous source of energy for the vehicle. The capacity of the vehicle-mounted battery directly determines the cruising range of the pure electric vehicle or the pure electric driving ability of the hybrid vehicle.

[0004] During the driving of the vehicle, if there are operations such as sudden acceleration and climbing, the load of the vehicle-mounted battery increases, causing the voltage fluctuation of the vehicle-mounted battery to exceed the threshold, resulting in the power output of the vehicle out of control and increasing the safety hazards of driving. SUMMARY

[0005] In order to improve the safety of vehicle driving, the present application provides a vehicle-mounted battery voltage stabilizing method and system.

[0006] In a first aspect, the present application provides a vehicle-mounted battery voltage stabilizing method, which adopts the following technical solution: A vehicle-mounted battery voltage stabilizing method, comprising: S10: collecting a detection voltage of a vehicle-mounted battery and a vehicle type; S11: retrieving a reference voltage range from the vehicle type; S12: calculating a deviation voltage by the detection voltage and the reference voltage range according to the exceeding condition of the detection voltage and the reference voltage range; S13: collecting a continuous time length based on the detection voltage; S14: obtaining an auxiliary power by the deviation voltage and the continuous time length; S15: selecting to control a preset solar storage device to output according to the exceeding condition of the auxiliary power and a preset solar storage power, or obtaining a running power by the auxiliary power and the continuous time length; S16: updating the running power based on the vehicle type, and controlling a preset engine to run by the running power.

[0007] By adopting the technical scheme, the deviation voltage is obtained by analyzing the detection voltage and the vehicle type, the auxiliary power is obtained according to the deviation voltage and the duration, and the solar storage device is controlled to output the deviation voltage or the engine is controlled to run at the running power according to the exceeding of the auxiliary power and the preset solar storage power, so that the solar storage device or the engine can assist the vehicle-mounted battery to supply power, the voltage fluctuation of the vehicle-mounted battery is within the allowable range, and the safety of vehicle driving is improved.

[0008] Optionally, the method further comprises: S20: collecting vehicle operation information; S21: retrieving an operation equipment type from the vehicle operation information; S22: obtaining a marked equipment type according to the operation equipment type and the duration; S23: obtaining a solar control power through the marked equipment type; S24: controlling the solar storage device to supply power to the marked equipment type at the solar control power, and updating the running power based on the solar control power.

[0009] Optionally, the method further comprises: S30: collecting a vehicle position, a current period and a detection path; S31: obtaining a historical corresponding period based on the current period; S32: obtaining a remaining path through the detection path and the vehicle position; S33: retrieving a historical road condition of the remaining path in the historical corresponding period; S34: obtaining a detection equipment type and a detection equipment power according to the historical road condition, a preset driving habit and the vehicle operation information, and controlling the detection equipment type to decrease the detection equipment power.

[0010] Optionally, the method for determining the driving habit comprises: S40: retrieving a historical change speed from the vehicle operation information; S41: taking a detection path of the historical change speed as a historical path, and taking a vehicle position of the historical path as a historical position; S42: collecting a historical other position of the historical path; S43: calculating a nearest distance between the historical position and the historical other position as a historical vehicle distance; S44: obtaining a marked change speed based on the historical other position and the vehicle operation information; S45: defining the marked change speed corresponding to the historical change speed exceeding a preset reference change speed as a target change speed; S46: combining the target change speed and the historical vehicle distance to obtain the driving habit.

[0011] Optionally, the method for determining driving habits further comprises: S50: obtaining an interval existing period according to the historical vehicle interval, the historical change speed and the marked change speed; S51: obtaining an interval position according to the interval existing period and the detected path; S52: collecting historical intersection vehicles based on the interval position and the detected path; S53: obtaining an intersection time point through the historical intersection vehicles, the vehicle operation information and the interval position; S54: updating the historical change speed based on the intersection time point; S55: defining the intersection time point corresponding to the historical change speed exceeding the preset reference change speed as a marked time point, and obtaining the driving habits by combining the marked time point and the historical change speed.

[0012] Optionally, the method for determining driving habits further comprises: S60: obtaining a slope position and a detected slope from the detected path; S61: obtaining a slope change speed of the slope position from the vehicle operation information; S62: taking a time point corresponding to the slope change speed as a slope change time point; S63: obtaining an adjacent curvature path according to the slope position and the detected path; S64: identifying an adjacent curvature position of the adjacent curvature path from the detected path; S65: calculating a distance between the adjacent curvature position and the slope position as a detected slope interval; S66: defining the detected slope and the detected slope interval corresponding to the slope change speed exceeding the preset reference change speed as a marked slope and a marked slope interval; S67: adding the marked slope and the marked slope interval to the driving habits.

[0013] By using the above technical solution, the user's historical speed change under different road conditions is obtained by analyzing the driving habits, so as to facilitate subsequent prediction of the situation that the voltage fluctuation of the vehicle-mounted battery caused by the user's speed change exceeds the allowable range, and the type of detection equipment is controlled to reduce the power in advance, thereby reducing the voltage fluctuation of the vehicle-mounted battery in advance and improving the safety of vehicle driving.

[0014] Optionally, the method for obtaining the type of detection equipment and the power of the detection equipment comprises: S70: collecting environmental detection information of a remaining path; S71: obtaining a remaining road condition through the remaining path and the historical road condition; S72: obtaining a marker voltage, a time point of arrival, and a remaining driving speed according to the driving habit and the remaining road condition, and updating the environment detection information according to the time point of arrival; S73: obtaining a remaining operating power according to the marker voltage and the exceeding condition of the reference voltage range, the remaining driving speed, and the remaining path, and controlling the engine to operate at the time point of arrival according to the remaining operating power; S74: obtaining a selected device type according to the operating device type and the marker voltage; S75: when the selected device type contains a preset air conditioner device type, obtaining a detected device type and a detected device power according to the environment detection information, the air conditioner device type, and the marker voltage.

[0015] Optionally, the method for obtaining the detected device type and the detected device power further comprises: S80: collecting a detected temperature in the vehicle; S81: obtaining an environment increased heat according to the environment detection information, the remaining driving speed, and the remaining path; S82: obtaining an air conditioner operating power according to the detected temperature and the environment increased heat; S83: obtaining solar radiation information at the time point of arrival from the environment detection information; S84: obtaining a radiation direction according to the solar radiation information and the vehicle position; S85: obtaining a shielding number according to the radiation direction and a preset glass shielding device; S86: obtaining a shielding heat and a shielding power according to the shielding number and the solar radiation information, and updating the air conditioner operating power according to the shielding heat; S87: calculating a difference between the air conditioner operating power before and after the update to obtain an air conditioner reduced power; S88: comparing the air conditioner reduced power and the shielding power to select the air conditioner device type and the air conditioner reduced power as the detected device type and the detected device power, and controlling the preset glass shielding device to operate according to the shielding number and the shielding power.

[0016] By using the above technical solution, the air conditioner reduced power and the shielding power are analyzed to select the air conditioner device type and the air conditioner reduced power as the detected device type and the detected device power, and the preset glass shielding device is controlled to operate according to the shielding number and the shielding power, so that the glass shielding device is operated and the operating power of the air conditioner is reduced, and the operating load of the vehicle-mounted battery is indirectly reduced while the temperature in the vehicle is kept unchanged.

[0017] Optionally, the method for obtaining the environment increased heat comprises: S90: obtaining a surrounding building type around the remaining path from the environment detection information; S91: obtaining a remaining time point by the remaining path and the remaining driving speed; S92: obtaining detection sun information of the remaining time point from the environment detection information; S93: obtaining a shadow range and an irradiation range based on the detection sun information and the surrounding building type; S94: obtaining a shadow vehicle speed and an irradiation vehicle speed according to the driving habit, the remaining road condition, the shadow range and the irradiation range; S95: obtaining a shadow duration and an irradiation duration by combining the shadow range, the irradiation range, the shadow vehicle speed and the irradiation vehicle speed; S96: obtaining an environment temperature value from the environment detection information; S97: obtaining a heat dissipation amount based on the shadow duration, the vehicle type and the environment temperature value; S98: obtaining a detection heat amount by the irradiation duration, the detection sun information and the vehicle type; S99: obtaining an environment increased heat amount by combining the heat dissipation amount and the detection heat amount.

[0018] In a second aspect, the application provides a vehicle-mounted battery voltage stabilizing system, which adopts the following technical solution: A vehicle-mounted battery voltage stabilizing system, comprising: an acquisition module, configured to acquire a detection voltage, a vehicle type and a duration; a memory, configured to store a program of a vehicle-mounted battery voltage stabilizing method; a processor, configured to load and execute the program stored in the memory.

[0019] In summary, the application has at least one of the following beneficial technical effects: 1. By analyzing the detection voltage and the vehicle type to obtain a deviation voltage, and according to the deviation voltage and the duration to obtain an auxiliary electric quantity, and by the exceeding of the auxiliary electric quantity and a preset sun storage electric quantity, the sun storage device is selected to be controlled to output the deviation voltage, or the engine is controlled to run at a running power, so as to drive the sun storage device or the engine to assist the vehicle-mounted battery to supply power, so that the voltage fluctuation of the vehicle-mounted battery is within the allowable range, and the safety of vehicle driving is improved; 2. By analyzing the driving habit to obtain the situation of the user history that the vehicle speed changes under different road conditions, the subsequent prediction of the situation that the user's vehicle speed change causes the voltage fluctuation of the vehicle-mounted battery to exceed the allowable range is facilitated, and the power of the detection device type is controlled to be lowered in advance, so as to reduce the situation of the voltage fluctuation of the vehicle-mounted battery in advance, and the safety of vehicle driving is improved; 3. The method selects the air conditioning device type and the air conditioning reduced power as the detected device type and the detected device power by analyzing the size of the air conditioning reduced power and the shielding power, and controls the preset glass shielding device to operate according to the shielding number and the shielding power, so that the glass shielding device operates and the operation power of the air conditioning is reduced, the operation load of the vehicle battery is indirectly reduced while the temperature in the vehicle is kept unchanged. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a method flow chart of a vehicle battery voltage stabilizing method according to an embodiment of the present application; Figure 2 is a method flow chart of a driving habit determining method according to an embodiment of the present application; Figure 3 is a method flow chart of a method for obtaining the detected device type and the detected device power according to an embodiment of the present application. DETAILED DESCRIPTION

[0021] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] Referring to Figure 1 The present application discloses a vehicle battery voltage stabilizing method, comprising the following steps: S10: collecting a detected voltage of a vehicle battery and a vehicle type.

[0023] The detected voltage refers to the voltage output by the vehicle battery, which can be detected by a voltage sensor preset on the vehicle battery. The vehicle type refers to the type of the vehicle containing the vehicle battery, which can be obtained from the system.

[0024] S11: obtaining a reference voltage range from the vehicle type.

[0025] The reference voltage range refers to the range in which the voltage fluctuation of the vehicle battery is allowed, which can be obtained from the vehicle type.

[0026] S12: calculating a deviation voltage from the detected voltage and the reference voltage range according to the exceeding condition of the detected voltage and the reference voltage range.

[0027] The deviation voltage refers to the deviation value between the detected voltage and the reference voltage range. When the detected voltage is greater than the maximum value of the reference voltage range or the detected voltage is less than the minimum value of the reference voltage range, it indicates that the driving condition of the vehicle increases the load of the vehicle battery, and then the difference between the maximum value or the minimum value of the detected voltage and the reference voltage range is calculated as the deviation voltage.

[0028] S13: collecting a continuous time length based on the detected voltage.

[0029] The duration is the continuous time that the detection voltage of the vehicle battery is out of the reference voltage range. The duration is started when the detection voltage is out of the reference voltage range for the first time, and the duration is ended when the detection voltage is back to the reference voltage range.

[0030] S14: obtaining the auxiliary power by the deviation voltage and the duration.

[0031] The auxiliary power is the total amount of the auxiliary power supply required to restore the voltage of the vehicle battery to the reference voltage range and maintain the stability. The auxiliary power is calculated by the deviation voltage, the duration and the rated discharge current of the vehicle type. The calculation method of the auxiliary power is the common knowledge of the person skilled in the art, and is not described here.

[0032] S15: selecting the preset solar storage device to output according to the exceeding condition of the auxiliary power and the preset solar storage power, or obtaining the running power by the auxiliary power and the duration.

[0033] The solar storage device is a device preset on the vehicle for storing solar energy conversion power, including a solar photovoltaic panel and a super capacitor. The solar storage power is the power stored in the solar storage device, which is updated in real time by a sensor.

[0034] The running power is the mechanical power output by the engine preset on the vehicle. The exceeding condition of the auxiliary power and the solar storage power is analyzed. When the auxiliary power does not exceed the solar storage power, it means that the power stored in the solar storage device can be used for auxiliary power supply to restore the voltage of the vehicle battery to the reference voltage range. Therefore, the solar storage device is controlled to output at a preset target current to restore the voltage of the vehicle battery to the reference voltage range. The target current is the rated current of the solar storage device set by the technician.

[0035] When the auxiliary power exceeds the solar storage power, it means that the power stored in the solar storage device cannot be used for auxiliary power supply to restore the voltage of the vehicle battery to the reference voltage range. Therefore, the running power is matched from the preset auxiliary control table by the auxiliary power and the duration.

[0036] The auxiliary control table stores the running power corresponding to different auxiliary power and duration. The greater the auxiliary power and duration, the greater the running power. The parameters in the auxiliary control table are set by the person skilled in the art according to the actual situation in advance, and are not described here.

[0037] S16: updating the running power based on the vehicle type, and controlling the preset engine to run by the running power.

[0038] 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, and the engine is controlled to operate at the operating power.

[0039] Further comprising: S20: Collecting vehicle operating information.

[0040] The vehicle operating information refers to the working state and related parameters of each electrical device during vehicle driving and when the vehicle is driving, including device switching state, real-time power, cumulative operating time, and vehicle speed, etc.

[0041] S21: Retrieving operating device type from vehicle operating information.

[0042] The operating device type refers to the type of each electrical device during vehicle driving and the corresponding device, which is retrieved from the vehicle operating information.

[0043] S22: Obtaining marked device type according to operating device type and duration.

[0044] The marked device type refers to the operating device type that operates within the duration, which is obtained by taking the operating device type that operates within the duration as the marked device type.

[0045] S23: Obtaining solar control power by marked device type.

[0046] The solar control power refers to the power of the marked device type, which is obtained by retrieving the power of the marked device type that operates within the duration as the solar control power.

[0047] S24: Controlling the solar storage device to supply power to the marked device type at the solar control power, and updating the operating power based on the solar control power.

[0048] The solar storage device is controlled to supply power to the marked device type at the solar control power, so as to reduce the load of the marked device type on the vehicle battery, and the amount of auxiliary power required by the engine to be supplemented is correspondingly reduced, and then the solar control power is analyzed to obtain a new operating power. The analysis method of the new operating power is known to those skilled in the art, and is not described here.

[0049] Further comprising: S30: Collecting vehicle position, current period, and detection path.

[0050] The vehicle position refers to the geographic coordinates of the vehicle at present, which can be collected in real time by the vehicle-mounted GPS or navigation module.

[0051] The current period refers to the specific time interval when the vehicle is driving, which is retrieved by the system from the vehicle-mounted real-time clock.

[0052] The detection path refers to the total path traveled by the vehicle, which can be obtained from the navigation module on the vehicle by the system.

[0053] S31: Obtain a historical corresponding period based on the current period.

[0054] The historical corresponding period refers to a historical driving period that is consistent with the current period in terms of time characteristics (for example, the current period is Monday 14:00-14:30, and the historical corresponding period is Monday 14:00-14:30 in the past 4 weeks). The historical corresponding period is obtained by analyzing the current period, and the analysis method of the historical corresponding period is known to those skilled in the art, which will not be repeated here.

[0055] S32: Obtain the remaining path by detecting the path and the vehicle position.

[0056] The remaining path refers to the section of the path that has not yet been traveled by the vehicle from the current position to the end of the detection path, including road type (expressway, urban road), distance, slope, etc. The path between the end of the detection path and the vehicle position is taken as the remaining path.

[0057] S33: Obtain the historical traffic of the remaining path in the historical corresponding period.

[0058] The historical traffic refers to the traffic state of the remaining path in the historical corresponding period, including average speed, congestion section, travel time, etc. The traffic data of the remaining path in the historical corresponding period is obtained from the navigation module to obtain the historical traffic.

[0059] S34: Obtain the detection device type and the detection device power according to the historical traffic, the preset driving habit, and the vehicle running information, and control the detection device type to reduce the detection device power.

[0060] The driving habit refers to the driving behavior characteristics of the user under different road conditions, including acceleration frequency, deceleration frequency, following distance, and use of air conditioning and other devices.

[0061] The detection device type refers to a marked device type that can reduce power without affecting vehicle travel, and the detection device power refers to the power that needs to be reduced by the detection device type. The detection device type and the detection device power are obtained by combining and analyzing the historical traffic, the preset driving habit, and the vehicle running information, and the detection device type is controlled to adjust the power with the detection device power.

[0062] Reference Figure 2 The determination method of the driving habit includes: S40: Obtain the historical change speed from the vehicle running information.

[0063] The historical change speed refers to the change value of the vehicle speed per unit time when the vehicle travels before the current period. The change value of each vehicle speed before the current period is called from the vehicle operation information as the historical change speed.

[0064] S41: The detection path of the historical change speed is taken as the historical path, and the vehicle position of the historical path is taken as the historical position.

[0065] The historical path refers to the detection path where the historical change speed occurs. The detection path corresponding to the period of the historical change speed is called, and the path where the historical change speed occurs in the detection path is taken as the historical path.

[0066] The historical position refers to the vehicle position on the historical path. The vehicle position on the historical path is taken as the historical position.

[0067] S42: Collect the historical other positions of the historical path.

[0068] The historical other position refers to the position of other vehicles on the historical path. The vehicle position in the vehicle-mounted GPS or navigation module of other vehicles is taken as the historical other position by the system.

[0069] S43: Calculate the nearest distance between the historical position and the historical other position as the historical vehicle distance.

[0070] The historical vehicle distance refers to the nearest straight-line distance between the historical position and the historical other position. The nearest distance between the historical position and the historical other position is calculated as the historical vehicle distance. The historical vehicle distance represents the distance between the user's vehicle and the front vehicle when the vehicle travels.

[0071] S44: Obtain the marked change speed based on the historical other position and the vehicle operation information.

[0072] The marked change speed refers to the historical change speed of the vehicle at the historical other position. The vehicle operation information of the other vehicle with the nearest distance is called, and the historical change speed of the historical position corresponding to the period is called from the vehicle operation information of the other vehicle as the marked change speed.

[0073] S45: Define the marked change speed corresponding to the historical change speed exceeding the preset reference change speed as the target change speed.

[0074] The reference change speed is the minimum value of the change speed of the vehicle set by the technician, which is easy to cause the voltage of the vehicle-mounted battery to exceed the reference voltage range.

[0075] The target change speed refers to the marked change speed of the historical other position corresponding to the historical change speed exceeding the reference change speed. The marked change speed of the historical other position corresponding to the historical change speed exceeding the reference change speed is called.

[0076] In this embodiment, if the speed of the target vehicle with changing speed changes little during the driving process, the historical vehicle distance gradually decreases during the process that the user vehicle gradually approaches the target vehicle, and the user vehicle needs to decelerate.

[0077] If the speed of the target vehicle with changing speed changes greatly during the driving process, the historical vehicle distance gradually increases during the process that the user vehicle drives behind the target vehicle, and the user vehicle has acceleration.

[0078] S46: Combine the target changing speed and the historical vehicle distance to obtain the driving habit.

[0079] By combining the target changing speed (reflecting the influence of the driving behavior of other vehicles on the user vehicle) and the historical vehicle distance (reflecting the following distance of the user vehicle), the driving characteristics of the vehicle are analyzed (refer to S45) to obtain the driving habit.

[0080] The method for determining the driving habit further comprises: S50: Obtain the distance existing period according to the historical vehicle distance, the historical changing speed and the marked changing speed.

[0081] The safe distance is the safe distance between the front and rear vehicles set by the technician. The distance existing period refers to the time period during which the historical vehicle distance is greater than the safe distance. By analyzing the vehicle speed corresponding to the historical changing speed and the marked changing speed, new historical vehicle distances are continuously obtained. The new historical vehicle distances at each time are compared with the safe distance, and the time period corresponding to the historical vehicle distance greater than the safe distance is taken as the distance existing period.

[0082] In this embodiment, if there is a change in the other vehicle in front of the user vehicle, the historical vehicle distance corresponds to the change, which is not described herein.

[0083] S51: Obtain the interval position according to the distance existing period and the detection path.

[0084] The interval position refers to the position at which the historical vehicle distance appears. The vehicle position corresponding to the distance existing period in the detection path is obtained, and the center position of the historical vehicle distance before the vehicle position is taken as the interval position.

[0085] S52: Collect the historical intersection vehicle based on the interval position and the detection path.

[0086] The historical intersection vehicle refers to a vehicle of another path appearing at the interval position of the detection path. By calling from the path of the vehicle of another path that is not in the detection path, the vehicle of another path appearing at the interval position of the detection path is taken as the historical intersection vehicle. For example, when the user vehicle passes through the intersection, there is another vehicle that turns at the corresponding intersection to merge into the detection path of the user vehicle. At this time, the other vehicle before the user vehicle needs to be updated.

[0087] S53: obtaining the intersection time point by the historical intersection vehicle, the vehicle running information, and the interval position.

[0088] The intersection time point refers to the time point at which the historical intersection vehicle appears at the interval position. By analyzing the vehicle running information of the historical intersection vehicle, the time point at which the historical intersection vehicle travels to the interval position is taken as the intersection time point. The analysis method of the intersection time point is known to those skilled in the art, and is not described here.

[0089] S54: updating the historical change speed based on the intersection time point.

[0090] The change speed of the intersection time point is called from the vehicle running information again as the new historical change speed.

[0091] S55: defining the intersection time point corresponding to the historical change speed exceeding the preset reference change speed as a marked time point, and obtaining the driving habit by combining the marked time point with the historical change speed.

[0092] The marked time point refers to the intersection time point corresponding to the historical change speed exceeding the reference change speed, which is taken as the marked time point by the intersection time point corresponding to the historical change speed exceeding the reference change speed.

[0093] By combining the marked time point with the historical change speed, the speed change of the user when observing that there is another vehicle merging into the detection path is analyzed. When the vehicle merges, a new historical vehicle distance between the user and the historical intersection vehicle is obtained. Referring to S45 and S46, the driving habit corresponding to the acceleration and deceleration of the user vehicle by the merging of the other vehicle is obtained.

[0094] The method for determining the driving habit further comprises: S60: calling the slope position and the detection slope from the detection path.

[0095] The slope position refers to the geographic coordinates of the section of the detection path where the slope (uphill or downhill) exists, and the detection slope refers to the slope value corresponding to the slope position. If the detection slope is positive, it indicates uphill, and if the detection slope is negative, it indicates downhill. The slope position and the detection slope can be called from the detection path.

[0096] S61: Acquire a slope change vehicle speed at the slope position from the vehicle operation information.

[0097] The slope change vehicle speed refers to a change in vehicle speed of the user's vehicle when the vehicle travels to the slope position. The change in vehicle speed at the time point when the vehicle moves to the slope position is acquired from the vehicle operation information as the slope change vehicle speed.

[0098] S62: Acquire a time point corresponding to the slope change vehicle speed as a slope change time point.

[0099] The slope change time point refers to a time point at which the slope change vehicle speed occurs. The time point corresponding to the slope change vehicle speed is acquired as the slope change time point.

[0100] S63: Acquire an adjacent curvature path from the slope position and the detected path.

[0101] The adjacent curvature path refers to a path in which a curve exists before and after the slope position. A path in which a curvature is not 0 before and after the slope position is acquired from the detected path as the adjacent curvature path.

[0102] S64: Identify an adjacent curvature position of the adjacent curvature path from the detected path.

[0103] The adjacent curvature position refers to a position point of the adjacent curvature path. A position of the adjacent curvature path is identified from the detected path as the adjacent curvature position.

[0104] S65: Calculate a distance between the adjacent curvature position and the slope position as a detected slope interval.

[0105] The detected slope interval refers to a closest distance between the adjacent curvature position and the slope position. A distance between the adjacent curvature position closest to the slope position and the slope position is calculated as the detected slope interval.

[0106] S66: Define a detected slope and a detected slope interval corresponding to the slope change vehicle speed exceeding a predetermined reference change vehicle speed as a marker slope and a marker slope interval.

[0107] The marker slope refers to a detected slope value corresponding to the slope change vehicle speed exceeding the reference change vehicle speed. The marker slope interval refers to a detected slope interval corresponding to the slope change vehicle speed exceeding the reference change vehicle speed. The detected slope and the detected slope interval corresponding to the slope change vehicle speed exceeding the reference change vehicle speed are defined as the marker slope and the marker slope interval.

[0108] S67: Add the marker slope and the marker slope interval to the driving habit based on the marker slope and the marker slope interval.

[0109] By analyzing the influence of the marked slope and the marked slope interval on the user driving, if the marked slope is positive 5° and the marked slope interval is 300 meters (a curve immediately after the slope), and the slope change vehicle speed is positive 7 km / h (acceleration), the driving habit includes "steep slope after the curve still rapid acceleration".

[0110] If the marked slope is negative 3° (downhill) and the marked slope interval is 1000 meters (a curve far away after the slope), and the slope change vehicle speed is negative 6 km / h / s (deceleration), the driving habit includes "long downhill after the curve deceleration". The above features are added to the driving habit model to improve the description of driving behavior under complex terrain.

[0111] The method for obtaining the detection device type and the detection device power comprises: S70: Collecting environmental detection information of the remaining path.

[0112] The environmental detection information refers to the environmental parameters around the location of the remaining path, including real-time temperature, light intensity, precipitation conditions, and wind grade.

[0113] S71: Obtaining the remaining road condition by the remaining path and the historical road condition.

[0114] The remaining road condition refers to the predicted road condition of the remaining path in the current period. By taking the historical road condition (traffic data of the remaining path in the corresponding historical period) as the basis, and combining the current real-time traffic information (such as the real-time congestion broadcast of the navigation platform) to correct the road condition of the remaining path in the historical road condition, the corrected remaining path traffic state is obtained as the remaining road condition. The analysis method of the remaining road condition is known to those skilled in the art, and will not be repeated here.

[0115] S72: Obtaining the marked voltage, the arrival time point, and the remaining driving speed according to the driving habit and the remaining road condition, and updating the environmental detection information according to the arrival time point.

[0116] The marked voltage refers to the voltage output by the vehicle-mounted battery when the user drives on the remaining path, the arrival time point refers to the time point of the user's vehicle on the remaining path, and the remaining driving speed refers to the speed of the user driving on the remaining path.

[0117] The remaining driving speed is obtained by weighted calculation of the sub-section predicted speed (such as 20 km / h in a congested section and 60 km / h in a smooth section) retrieved from the remaining road condition, combined with the driving habit (such as the average speed of the user in a smooth section). The weighted calculation method of the remaining driving speed is calculated by the weight set by the person skilled in the art, which will not be repeated here.

[0118] When the remaining driving speed is obtained, the time point of the user driving on the remaining path is retrieved from the system as the arrival time point.

[0119] The driving speed, congestion of other vehicles of the residual road condition is called to obtain the marked change speed of other vehicles in the residual path, the marked change speed and the user vehicle are obtained to obtain the historical change speed of the user in the residual path, the change speed, the residual driving speed and the use of the user to the running equipment type are combined to analyze the voltage output by the vehicle-mounted battery as the marked voltage, the analysis method of the marked voltage is the common knowledge of the person skilled in the art, and details are not repeated here.

[0120] S73: According to the exceeding condition of the marked voltage and the reference voltage range, the residual running power is obtained by the marked voltage, the residual driving speed and the residual path, and the engine is controlled to run at the arrival time point by the residual running power.

[0121] The residual running power refers to the power of the engine running when the user drives in the residual path. The exceeding condition of the marked voltage and the reference voltage range is analyzed. When the marked voltage falls within the reference voltage range, the residual duration is calculated by the residual driving speed and the residual path according to S15, the marked deviation voltage between the marked voltage and the reference voltage range is calculated, and the residual running power is matched from the auxiliary control table by the marked deviation voltage and the residual duration, and the engine is controlled to run at the arrival time point with the residual running power.

[0122] S74: According to the running equipment type and the marked voltage, the selected equipment type is obtained.

[0123] The selected equipment type refers to the running equipment type in the vehicle when the marked voltage output by the vehicle-mounted battery exceeds the reference voltage range. The running equipment type in the time period when the marked voltage exceeds the reference voltage range is selected as the selected equipment type.

[0124] S75: When the selected equipment type contains the preset air conditioning equipment type, the detection equipment type and the detection equipment power are obtained by the environment detection information, the air conditioning equipment type and the marked voltage.

[0125] The air conditioning equipment type is the vehicle-mounted air conditioner set by the technician. When the selected equipment type contains the air conditioning equipment type, it indicates that the user uses the vehicle-mounted air conditioner in the time period when the marked voltage exceeds the reference voltage range. The detection equipment type and the detection equipment power are obtained by analyzing the environment detection information, the air conditioning equipment type and the marked voltage.

[0126] Referring to Figure 3 , the method for obtaining the detection equipment type and the detection equipment power further comprises: S80: Collecting the detection temperature in the vehicle.

[0127] The detection temperature refers to a temperature value in the vehicle, and the temperature value detected by a temperature sensor preset in the vehicle is taken as the detection temperature.

[0128] S81: Obtain the environmental added heat through the environmental detection information, the remaining driving speed, and the remaining path.

[0129] The environmental added heat refers to the total heat transmitted into the vehicle from the external environment during the remaining path driving. The total environmental added heat is obtained by adding the radiation heat and the convection heat through a heat transfer formula (radiation heat = light intensity x light receiving area x absorption coefficient, convection heat = temperature difference x wind speed coefficient) from the light intensity (calculate the solar radiation heat) and the real-time air temperature (calculate the air convection heat) in the environmental detection information, and the remaining driving speed (the lower the vehicle speed, the weaker the air convection, and the more heat accumulation).

[0130] The analysis method of the absorption coefficient and the wind speed coefficient is well known to those skilled in the art, and is not described here.

[0131] S82: Obtain the air conditioner running power according to the detection temperature and the environmental added heat.

[0132] The air conditioner running power refers to the power output by the air conditioner to maintain the temperature in the vehicle. The temperature deviation value is obtained by calculating the difference between the detection temperature and the real-time air temperature of the external environment, and the air conditioner running power is calculated based on the heat balance formula: air conditioner running power = (environmental added heat ÷ remaining driving time) + (temperature deviation value x vehicle heat capacity coefficient).

[0133] The vehicle heat capacity coefficient is obtained from the vehicle type, reflecting the heat storage capacity of the air in the vehicle and the seat.

[0134] S83: Obtain the solar radiation information at the arrival time point from the environmental detection information.

[0135] The solar radiation information refers to the solar radiation intensity, solar elevation angle, and solar azimuth angle parameters corresponding to the remaining path at the arrival time point, which are obtained from the environmental detection information.

[0136] S84: Obtain the irradiation direction through the solar radiation information and the vehicle position.

[0137] The irradiation direction refers to the incident direction of the sun towards the vehicle, which is obtained by analyzing the solar radiation information and the vehicle position.

[0138] S85: Obtain the number of shielding devices based on the irradiation direction and the preset glass shielding device.

[0139] The glass shielding device is an intelligent light-adjusting glass set by the technician to change the color of the vehicle window glass to shield the solar radiation. The glass shielding device is generally set on the glass on both sides of the vehicle.

[0140] The shielding quantity refers to the number of glass shielding devices that can shield the sun. By selecting the glass near the irradiation direction and subjected to solar radiation from the glass of the vehicle, and counting the number of glass shielding devices provided in each glass, the counting result is taken as the shielding quantity.

[0141] S86: Obtain the shielding heat and the shielding power by the shielding quantity and the solar irradiation information, and update the air conditioner operating power with the shielding heat.

[0142] The shielding heat refers to the heat of the solar radiation entering the vehicle that is reduced after the glass shielding device is opened. The shielding power refers to the power of the glass shielding device that controls the shielding quantity and is opened and operated. By analyzing the area of the sun entering the vehicle through the glass shielding device of the shielding quantity, the shielding area ratio is obtained, and the product of the shielding area ratio and the total radiation heat in the solar irradiation information is calculated to obtain the shielding heat. The shielding power is retrieved from the specification parameters of the shielding device (such as 50W rated power per device, and the shielding power = 100W when the shielding quantity is 2).

[0143] The updating method of the air conditioner operating power is the original air conditioner operating power minus (shielding heat ÷ remaining driving time), that is, the air conditioner load corresponding to the heat reduced by the shielding device is deducted.

[0144] S87: Calculate the difference between the air conditioner operating power before and after updating to obtain the air conditioner reduction power.

[0145] The air conditioner reduction power refers to the value of the air conditioner operating power reduced after the glass shielding device is assisted. The air conditioner reduction power is obtained by calculating the difference between the air conditioner operating power before and after updating.

[0146] S88: Compare the size of the air conditioner reduction power and the shielding power to select the air conditioner equipment type and the air conditioner reduction power as the detection equipment type and the detection equipment power, and control the preset glass shielding device to operate with the shielding quantity and the shielding power.

[0147] The size of the air conditioner reduction power and the shielding power is analyzed. If the air conditioner reduction power is greater than the shielding power, it means that the glass shielding device is assisted to open and the operation power of the air conditioner is reduced, which can indirectly reduce the load of the vehicle battery. Therefore, the air conditioner equipment type and the air conditioner reduction power are taken as the detection equipment type and the detection equipment power, and the glass shielding device is controlled to operate with the shielding quantity and the shielding power.

[0148] If the air conditioner power reduction is not greater than the shielding power, it indicates that the glass shielding device is assisting in opening and the reduction of the air conditioner operating power cannot indirectly reduce the load of the vehicle-mounted battery, and no adjustment is made to continue running the engine.

[0149] The method for obtaining the environmental heat increase comprises: S90: obtaining surrounding building types around the remaining path from the environmental detection information.

[0150] The surrounding building types refer to buildings on both sides of the remaining path and corresponding building features, including building height, density, and shielding capacity, etc. The surrounding building types are obtained by combining the buildings around the remaining path and corresponding building height, density, and shielding capacity from the environmental detection information.

[0151] S91: obtaining the remaining time point by the remaining path and the remaining driving speed.

[0152] The remaining time point refers to the time point when the user arrives at different positions on the remaining path. The remaining time point is obtained by analyzing the remaining path and the remaining driving speed.

[0153] S92: obtaining the detection sun information of the remaining time point from the environmental detection information.

[0154] The detection sun information refers to the sun irradiation information of the remaining time point. The detection sun information of the remaining time point is obtained from the environmental detection information.

[0155] S93: obtaining the shadow range and the irradiation range based on the detection sun information and the surrounding building types.

[0156] The shadow range refers to the road section covered by the shadow projected by the surrounding buildings on the remaining path at the remaining time point. The irradiation range refers to the road section on the remaining path that is not blocked by building shadows and is directly irradiated by the sun. The shadow range and the irradiation range are obtained by analyzing the detection sun information and the surrounding building types. The analysis method of the shadow range and the irradiation range is known to those skilled in the art, and will not be described here.

[0157] S94: obtaining the shadow speed and the irradiation speed according to the driving habit, the remaining road condition, the shadow range, and the irradiation range.

[0158] The shadow speed refers to the expected driving speed of the vehicle in the shadow range. The irradiation speed refers to the expected driving speed of the vehicle in the irradiation range.

[0159] The shadow speed and the irradiation speed are obtained by combining the shadow section in the residual road condition or the average vehicle speed and driving habit (speed distribution corresponding to different following distances) predicted in the irradiation range, and the analysis method of the shadow speed and the irradiation speed is well known to those skilled in the art, which is not described here.

[0160] S95: combining the shadow range, the irradiation range, the shadow speed and the irradiation speed to obtain the shadow duration and the irradiation duration.

[0161] The shadow duration refers to the driving duration of the vehicle in the shadow range, and the irradiation duration refers to the driving duration of the vehicle in the irradiation range. The quotient of the distance value of the shadow range along the residual path and the shadow speed is calculated as the shadow duration, and the quotient of the distance value of the irradiation speed along the residual path and the irradiation speed is calculated as the irradiation duration.

[0162] S96: retrieving an ambient temperature value from the environment detection information.

[0163] The ambient temperature value refers to the air temperature of the surrounding environment of the residual path, and the ambient temperature value is retrieved from the environment detection information.

[0164] S97: obtaining the heat dissipation based on the shadow duration, the vehicle type and the ambient temperature value.

[0165] The heat dissipation refers to the heat dissipated by the vehicle itself to the external environment when the vehicle drives in the shadow range. The total heat dissipation area of the vehicle body is retrieved from the vehicle type, and the shadow duration × (ambient temperature value - detection temperature) × heat insulation coefficient × total heat dissipation area of the vehicle body = heat dissipation is calculated.

[0166] S98: obtaining the detection heat by the irradiation duration, the detection sun information and the vehicle type.

[0167] The detection heat refers to the heat of the solar radiation transmitted into the vehicle when the vehicle drives in the irradiation range. The light receiving area and the absorption coefficient of the vehicle body to the solar radiation are retrieved from the vehicle type, and the irradiation duration × the radiation intensity in the detection sun information × the light receiving area × the absorption coefficient = the detection heat is calculated.

[0168] S99: combining the heat dissipation and the detection heat to obtain the ambient increase heat.

[0169] The ambient increase heat is calculated by detection heat (transmitted in the irradiation range) - heat dissipation (transmitted in the shadow range).

[0170] Based on the same inventive concept, the embodiment of the present application provides a vehicle-mounted battery voltage stabilizing system, which comprises: The acquisition module is configured to acquire a detection voltage, a vehicle type, a duration, vehicle operation information, a vehicle position, a current period, a detection path, historical other positions, historical intersection vehicles, environment detection information, and a detection temperature. The memory is configured to store a program of the vehicle-mounted battery voltage stabilizing method. The processor is configured to load and execute the program stored in the memory.

[0171] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example for illustration, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0172] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as the protection scope of the present application.

Claims

1. A method for regulating a voltage of an in-vehicle battery, characterized by, Comprising: S10: collecting a detection voltage of a vehicle-mounted battery and a vehicle type; S11: calling a reference voltage range from the vehicle type; S12: 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; S13: collecting a continuous duration based on the detection voltage; S14: obtaining an auxiliary power by the deviation voltage and the continuous duration; S15: selecting to control a preset solar storage device to output according to an exceeding condition of the auxiliary power and a preset solar storage power, or obtaining a running power by the auxiliary power and the continuous duration; S16: updating the running power based on the vehicle type, and controlling a preset engine to run by the running power.

2. The method of claim 1, wherein the voltage of the battery is maintained at a constant level. Further comprising: S20: collecting vehicle running information; S21: calling a running equipment type from the vehicle running information; S22: obtaining a marked equipment type according to the running equipment type and the continuous duration; S23: obtaining a solar control power by the marked equipment type; S24: controlling the solar storage device to supply power to the marked equipment type by the solar control power, and updating the running power based on the solar control power.

3. The method of claim 2, wherein the voltage of the battery is stabilized by the controller. Further comprising: S30: collecting a vehicle position, a current period and a detection path; S31: obtaining a historical corresponding period based on the current period; S32: obtaining a remaining path by the detection path and the vehicle position; S33: calling a historical road condition of the remaining path in the historical corresponding period; S34: obtaining a detection equipment type and a detection equipment power according to the historical road condition, a preset driving habit and the vehicle running information, and controlling the detection equipment type to reduce the detection equipment power.

4. The method of claim 3, wherein the voltage of the battery is maintained at a constant level by the controller. The determination method of the driving habit comprises: S40: calling a historical change speed from the vehicle running information; S41: taking a detection path of the historical change speed as a historical path, and taking a vehicle position of the historical path as a historical position; S42: collecting a historical other position of the historical path; S43: calculating a nearest distance between the historical position and the historical other position as a historical vehicle distance; S44: obtaining a marked change speed based on the historical other position and the vehicle running information; S45: defining the marked change speed corresponding to the historical change speed exceeding a preset reference change speed as a target change speed; S46: combining the target change speed and the historical vehicle distance to obtain the driving habit.

5. The method of claim 4, wherein the voltage of the battery is maintained at a constant level by the controller. The determination method of the driving habit further comprises: S50: obtaining a distance existing period according to the historical vehicle distance, the historical change speed and the marked change speed; S51: obtaining an interval position according to the distance existing period and the detection path; S52: collecting a historical intersecting vehicle based on the interval position and the detection path; S53: obtaining an intersecting time point by the historical intersecting vehicle, the vehicle running information and the interval position; S54: updating the historical change speed based on the intersecting time point; S55: defining the intersecting time point corresponding to the historical change speed exceeding the preset reference change speed as a marked time point, and combining the marked time point and the historical change speed to obtain the driving habit.

6. The method of claim 5, wherein the voltage of the battery is maintained at a constant level by the controller. The determination method of the driving habit further comprises: S60: calling a slope position and a detection slope from the detection path; S61: obtaining a slope change vehicle speed from the vehicle operation information; S62: taking a time point corresponding to the slope change vehicle speed as a slope change time point; S63: obtaining an adjacent curvature path according to the slope position and the detection path; S64: identifying an adjacent curvature position of the adjacent curvature path from the detection path; S65: calculating a distance between the adjacent curvature position and the slope position as a detection slope distance; S66: defining a detection slope and the detection slope distance corresponding to the slope change vehicle speed exceeding a preset reference change vehicle speed as a marker slope and a marker slope distance; S67: adding the marker slope and the marker slope distance to the driving habit.

7. The method of claim 6, wherein the voltage of the battery is stabilized by the controller. The method for obtaining the detection device type and the detection device power comprises: S70: collecting environmental detection information of a remaining path; S71: obtaining a remaining road condition by the remaining path and the historical road condition; S72: obtaining a marker voltage, an arrival time point, and a remaining driving vehicle speed according to the driving habit and the remaining road condition, and updating the environmental detection information at the arrival time point; S73: obtaining a remaining operation power by the marker voltage, the remaining driving vehicle speed, and the remaining path according to an exceeding condition of the marker voltage and a reference voltage range, and controlling the engine to operate at the arrival time point according to the remaining operation power; S74: obtaining a selected device type according to the operation device type and the marker voltage; S75: when the selected device type contains a preset air conditioner device type, obtaining the detection device type and the detection device power by the environmental detection information, the air conditioner device type, and the marker voltage.

8. The method of claim 7, wherein the voltage of the battery is maintained at a constant level by the controller. The method for obtaining the detection device type and the detection device power further comprises: S80: collecting a detection temperature in the vehicle; S81: obtaining environmental added heat by the environmental detection information, the remaining driving vehicle speed, and the remaining path; S82: obtaining an air conditioner operation power according to the detection temperature and the environmental added heat; S83: obtaining sun irradiation information of the arrival time point from the environmental detection information; S84: obtaining an irradiation direction by the sun irradiation information and the vehicle position; S85: obtaining a shielding number based on the irradiation direction and a preset glass shielding device; S86: obtaining a shielding heat and a shielding power by the shielding number and the sun irradiation information, and updating the air conditioner operation power by the shielding heat; S87: obtaining an air conditioner reduction power by calculating a difference between the updated air conditioner operation power and the air conditioner operation power before the update; S88: comparing the air conditioner reduction power and the shielding power to select the air conditioner device type and the air conditioner reduction power as the detection device type and the detection device power, and controlling the preset glass shielding device to operate according to the shielding number and the shielding power.

9. The method of claim 8, wherein the voltage of the battery is stabilized by the controller. The method for obtaining the environmental added heat comprises: S90: obtaining a surrounding building type around the remaining path from the environmental detection information; S91: obtaining a remaining time point by the remaining path and the remaining driving speed; S92: obtaining detection sun information of the remaining time point from the environmental detection information; S93: obtaining a shadow range and an irradiation range based on the detection sun information and the surrounding building type; S94: obtaining a shadow vehicle speed and an irradiation vehicle speed according to the driving habit, the remaining road condition, the shadow range, and the irradiation range; S95: combine the shadow range, the irradiation range, the shadow vehicle speed and the irradiation vehicle speed to obtain the shadow duration and the irradiation duration; S96: obtain the ambient temperature value from the ambient detection information; S97: obtain the heat emission based on the shadow duration, the vehicle type and the ambient temperature value; S98: obtain the detected heat by the irradiation duration, the detected solar information and the vehicle type; S99: combine the heat emission and the detected heat to obtain the ambient increased heat.

10. An on-board battery voltage stabilizing system, characterized by comprising: The method comprises the following steps: an acquisition module, configured to acquire the detected voltage, the vehicle type and the duration; a memory, configured to store a program for implementing the method for stabilizing the voltage of the vehicle-mounted battery according to any one of claims 1 to 9; a processor, configured to load and execute the program stored in the memory.

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