CN111483322A - Method and device for determining remaining mileage of vehicle and vehicle - Google Patents

Method and device for determining remaining mileage of vehicle and vehicle Download PDF

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Publication number
CN111483322A
CN111483322A CN202010343276.5A CN202010343276A CN111483322A CN 111483322 A CN111483322 A CN 111483322A CN 202010343276 A CN202010343276 A CN 202010343276A CN 111483322 A CN111483322 A CN 111483322A
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power consumption
vehicle
determining
average
current
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CN111483322B (en
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刘建康
王燕
杨钫
霍云龙
尹建坤
胡志林
白卓伟
李策
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FAW Group Corp
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FAW Group Corp
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Priority to PCT/CN2021/077449 priority patent/WO2021218313A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/12—Recording operating variables ; Monitoring of operating variables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/12—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/14—Acceleration
    • B60L2240/16—Acceleration longitudinal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/60—Navigation input
    • B60L2240/66—Ambient conditions
    • B60L2240/662—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2260/00—Operating Modes
    • B60L2260/40—Control modes
    • B60L2260/50—Control modes by future state prediction
    • B60L2260/52—Control modes by future state prediction drive range estimation, e.g. of estimation of available travel distance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2260/00—Operating Modes
    • B60L2260/40—Control modes
    • B60L2260/50—Control modes by future state prediction
    • B60L2260/54—Energy consumption estimation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Traffic Control Systems (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The embodiment of the invention provides a method and a device for determining remaining mileage of a vehicle and the vehicle, wherein the method comprises the following steps: the method comprises the steps of obtaining pre-stored traffic flow average speed corresponding to each subsection road condition and driving information of a vehicle at the current collection moment; determining power consumption information according to the average traffic flow speed and the running information corresponding to each subsection road condition; the remaining mileage is determined according to the power consumption information, the problem that the vehicle remaining driving mileage is not accurately predicted only according to the historical information is solved, the power consumption information of the vehicle is determined by obtaining the average speed of the traffic flow and the driving information of the vehicle at the current moment, the remaining mileage of the vehicle is further determined according to the power consumption information, the calculation process is simple, and the effect of simply and accurately predicting the remaining mileage of the vehicle is achieved.

Description

Method and device for determining remaining mileage of vehicle and vehicle
Technical Field
The embodiment of the invention relates to the technology of new energy automobiles, in particular to a method and a device for determining remaining mileage of a vehicle and the vehicle.
Background
At present, the pure electric vehicle is rapidly developed, and is affected by driving conditions, weather conditions and the like, the driving range of the pure electric vehicle is greatly changed, great trouble is brought to the trip of a user, the driver is accurately informed of the remaining driving range of the vehicle, and the range anxiety of the driver can be greatly relieved, so that the technology for estimating the remaining driving range of the pure electric vehicle becomes a key point in the development of pure electric vehicle types.
At present, the conventional method for estimating the remaining driving range of a vehicle usually establishes a plurality of parameter estimation models through historical information of vehicle driving to estimate the remaining driving range of the vehicle, but the establishment of a plurality of models is complex in implementation process, relatively complex in calculation process and large in calculation amount, and is difficult to implement and verify on an actual vehicle. Or the power consumption and the driving range are calculated according to the historical information of the vehicle which has already run, if the driving condition of the vehicle changes greatly or the information of the vehicle which runs on the road changes greatly, the driving range of the vehicle is predicted only through the historical information of the vehicle which has already run, the calculated range has larger error and lower accuracy.
Disclosure of Invention
The embodiment of the invention provides a method and a device for determining the remaining mileage of a vehicle and the vehicle, so as to accurately predict the remaining mileage of the vehicle.
In a first aspect, an embodiment of the present invention provides a method for determining remaining mileage of a vehicle, where the method includes:
acquiring pre-stored traffic flow average speed corresponding to each segmented road condition and running information of a vehicle at the current acquisition moment;
determining power consumption information according to the average traffic flow speed and the running information corresponding to each subsection road condition;
and determining the remaining mileage according to the power consumption information.
In a second aspect, an embodiment of the present invention further provides a remaining vehicle range determining apparatus, including:
the acquisition module is used for acquiring the pre-stored traffic flow average speed corresponding to each segmented road condition and the running information of the vehicle at the current acquisition moment;
the power consumption information determining module is used for determining power consumption information according to the traffic flow average speed and the running information corresponding to each subsection road condition;
and the mileage determining module is used for determining the remaining mileage according to the power consumption information.
In a third aspect, an embodiment of the present invention further provides a vehicle, including:
one or more sensors for acquiring a current ambient temperature;
one or more controllers;
a storage device for storing one or more programs,
when the one or more programs are executed by the one or more controllers, the one or more controllers are caused to implement a vehicle remaining range determination method as described in any one of the embodiments of the present invention.
The embodiment of the invention provides a method and a device for determining remaining mileage of a vehicle and the vehicle, wherein the method comprises the steps of obtaining pre-stored average traffic flow speeds corresponding to each subsection road condition and driving information of the vehicle at the current acquisition moment; determining power consumption information according to the average traffic flow speed and the running information corresponding to each subsection road condition; the remaining mileage is determined according to the power consumption information, the problem that the vehicle remaining driving mileage is not accurately predicted only according to the historical information is solved, the power consumption information of the vehicle is determined by obtaining the average speed of the traffic flow and the driving information of the vehicle at the current moment, the remaining mileage of the vehicle is further determined according to the power consumption information, the calculation process is simple, and the effect of simply and accurately predicting the remaining mileage of the vehicle is achieved.
Drawings
FIG. 1 is a flow chart of a method for determining remaining mileage of a vehicle according to a first embodiment of the present invention;
FIG. 2 is a flowchart of a method for determining remaining mileage of a vehicle according to a second embodiment of the present invention;
fig. 3 is a flowchart of determining a current power consumption value in a method for determining remaining mileage of a vehicle according to a second embodiment of the present invention;
fig. 4 is a flowchart of implementing forming a power consumption meter in a method for determining remaining mileage of a vehicle according to a second embodiment of the present invention;
fig. 5 is a flowchart of an implementation of forming an average power consumption coefficient table in a method for determining remaining mileage of a vehicle according to a second embodiment of the present invention;
fig. 6 is a flowchart of determining remaining mileage in a method for determining remaining mileage of a vehicle according to a second embodiment of the present invention;
fig. 7 is a structural diagram of a remaining mileage determining apparatus for a vehicle in the third embodiment of the present invention;
fig. 8 is a schematic structural diagram of a vehicle according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of a method for determining remaining mileage of a vehicle according to an embodiment of the present invention, where the embodiment is applicable to a situation where the remaining mileage of the vehicle is predicted, and the method may be executed by a device for determining remaining mileage of a vehicle, and specifically includes the following steps:
and S110, acquiring the pre-stored traffic flow average speed corresponding to each subsection road condition and the running information of the vehicle at the current acquisition moment.
In this embodiment, the segmented road condition may be specifically understood as that the vehicle is segmented from the current position to another position according to a given distance, and each segment of road obtained by segmentation is a segmented road condition; the other position may be a destination or a next traffic light, and the other position is a destination input by the user if the user turns on the navigation on the vehicle and inputs the destination, and the other position is a position of a next traffic light if the user does not turn on the navigation and does not input the destination. The average speed of the traffic flow is understood to mean the average speed of the vehicles traveling on the road. The driving information may be understood as vehicle information during driving of the vehicle, such as speed information of the vehicle, acceleration information, an ambient temperature in which the vehicle is located, power consumption of accessories in the vehicle, electric power of a battery, and the like.
Specifically, the average traffic flow speed is stored by the navigation controller and sent to the vehicle control unit, different road conditions in front of the vehicle correspond to the average traffic flow speed, the navigation controller calculates and stores the average traffic flow speed of the road conditions in different sections, or other servers or cloud terminals calculate the average traffic flow speed of the road conditions in different sections, and the average traffic flow speed is sent to the navigation controller and stored by the navigation controller and sent to the vehicle control unit. The manner of acquiring the driving information of the vehicle at the current acquisition time may be acquired by each controller in the vehicle, and the vehicle contains controllers with different functions, such as vehicle speed and acceleration sent by a vehicle body stability control unit, a temperature value acquired by a temperature sensor and sent to a vehicle control unit through an air conditioner controller, and power consumption of high and low voltage accessories in the vehicle sent by the air conditioner controller and a direct current (DCDC) controller.
And S120, determining power consumption information according to the average traffic flow speed and the running information corresponding to each subsection road condition.
In this embodiment, the power consumption information may be specifically understood as the power consumption of the vehicle corresponding to the current collection time of the vehicle, for example, the power consumption value of each road condition in the front section, the power consumption values of high and low voltage accessories in the vehicle, and the power consumption value of the distance traveled by the vehicle.
Specifically, the power consumption value of each subsection road condition is determined according to the average traffic flow speed corresponding to each subsection road condition in front of the vehicle and the acceleration information of the vehicle; determining the power consumption value of accessories corresponding to each segmented road condition according to the average speed of the traffic flow and the power consumption of high-voltage and low-voltage accessories in the vehicle; determining an average power consumption value in the historical driving process according to the electric power of the battery at each acquisition time from the starting time to the current time; and determining different power consumption values as power consumption information.
And S130, determining the remaining mileage according to the power consumption information.
Specifically, the average power consumption value of the road condition in front of the vehicle is determined according to the power consumption value of each subsection road condition; determining the average power consumption value of accessories of the road condition in front of the vehicle according to the power consumption value of the accessories corresponding to each subsection road condition; and determining the remaining mileage according to the remaining electric quantity of the vehicle and the average power consumption values.
The embodiment of the invention provides a method for determining remaining mileage of a vehicle, which comprises the steps of obtaining pre-stored average traffic flow speed corresponding to each segmented road condition and running information of the vehicle at the current acquisition moment; determining power consumption information according to the average traffic flow speed and the running information corresponding to each subsection road condition; the remaining mileage is determined according to the power consumption information, the problem that the remaining driving mileage of the vehicle is inaccurate only predicted according to historical information is solved, different types of power consumption information corresponding to each segmented road condition of the vehicle is determined by obtaining the average traffic flow speed and the acceleration, the ambient temperature, the accessory power consumption, the electric power of the battery and other information of the vehicle at the current moment, the remaining mileage of the vehicle is further determined according to the power consumption information, the calculation process is simple, the actual remaining mileage of the vehicle is predicted according to the average traffic flow speed of each segmented road condition, the problem of low accuracy caused by prediction of the remaining mileage through the historical power consumption information under the condition that the driving condition changes greatly is solved, the accuracy of prediction of the remaining mileage is improved, and the effect of simply and accurately predicting the remaining mileage of the vehicle is achieved.
Example two
Fig. 2 is a flowchart of a method for determining remaining mileage of a vehicle according to a second embodiment of the present invention. The technical scheme of the embodiment is further refined on the basis of the technical scheme, and specifically mainly comprises the following steps:
s201, determining the road conditions of all the segments.
Specifically, the vehicle takes the starting position or the current position as a starting point, a distance from the vehicle to another position is segmented according to a segmentation distance, a multi-segment segmented road condition is formed, and after the vehicle is checked to run to another position, segmentation is carried out again. And determining the road condition of each section in the driving process of the vehicle so as to obtain the average traffic flow speed of each section of road condition subsequently. For example, how to segment a road to obtain segmented road conditions is illustrated, if the total distance from the current position of a vehicle to another position is 100km, segmentation is performed according to the fixed distance S being 2km, a navigation controller sends traffic flow average speed information every two kilometers ahead to a whole vehicle controller, that is, data sent to the whole vehicle controller by the navigation controller is two arrays, which are respectively used for embodying the segmented distance and the traffic flow average speed in the segmented distance, segmented distance data sent to the whole vehicle controller by the navigation controller is [ 222 … 2], 50 data are total, traffic flow average speed data is [ V1V 2 … V50], and 50 data are total. When the distance from the current position to another position is not an integral multiple of 2, the last section of less than 2km can be calculated according to 2km during segmentation, or the last section of the distance can be calculated according to the actual distance, and the actual distance of the last section of the distance is correspondingly stored.
Further, the manner of determining the road condition of each segment may be: acquiring a vehicle running starting point and a current terminal point; segmenting the driving starting point and the current terminal point according to a set segmentation distance; and when the situation that the vehicle runs to the current terminal point is monitored, taking the current terminal point as the running starting point, taking next position information as the current terminal point, and returning to the step of segmenting the running starting point and the current terminal point according to the set segmentation distance so as to update the road condition of each segment.
In the present embodiment, the running start point may be specifically understood as a position at which the ignition of the vehicle starts this driving; the current destination is understood to be in particular another location of the vehicle, either the destination or the next traffic light. The segmentation distance is specifically understood to be a distance value for segmenting the vehicle from the starting position to another position, and may be 2km, 3km and the like, and is set according to actual requirements. The next position information is understood in particular as the next destination of the travel, for example the next traffic light. The last segmented road condition can be specifically understood as the segmented road condition obtained by the last segmentation.
Specifically, when the vehicle starts driving, a vehicle driving starting point and a current terminal point are obtained, segmentation is performed according to a set segmentation distance, and when the vehicle drives to the current terminal point, segmentation is performed again. When the current terminal point is the destination, if the vehicle always runs along with the navigation without changing the route, only one segmentation is needed, otherwise, after the vehicle is monitored to change the route, the route is re-planned and segmented; when the vehicle travels to the current destination (destination), the driving is terminated. And when the current terminal point is the next traffic signal lamp, when the vehicle runs to the traffic signal lamp, the position of the next signal lamp is taken as the next position to segment the road again, at the moment, the current terminal point is taken as the running starting point, and the next position information is taken as the current terminal point. And when the vehicle does not drive to the current terminal, taking the last updated road condition of the last time as the current road condition of the section, and continuously judging whether the vehicle drives to the current terminal.
S202, acquiring the pre-stored traffic flow average speed corresponding to each subsection road condition and the running information of the vehicle at the current acquisition moment.
In the present embodiment, the running information includes at least an average acceleration, a current ambient temperature, a consumed power of accessories, and an electric power of a battery.
Specifically, the embodiment of the present invention provides a method for calculating an average acceleration, where a vehicle controller receives and stores a vehicle speed and an acceleration sent by a vehicle body stability control unit in real time, and calculates an average acceleration of a vehicle in a past period of time T, where a calculation formula of the average acceleration is as follows:
Figure BDA0002469172830000081
wherein, aavgIs the average acceleration over the past T time; a isiIs the vehicle acceleration at each moment in the past T time; n is the total number of samples of acceleration over the past T time. In this embodiment, T and n are valued according to the actual application, and are not limited at all.
S203, determining the current power consumption value of each subsection road condition according to the average speed and the average acceleration of the traffic flow corresponding to each subsection road condition and the current environment temperature; and S206 is performed.
In this embodiment, the current power consumption value may be specifically understood as a power consumption value corresponding to each road condition of the front sub-section predicted by the vehicle under the current ambient temperature condition.
Specifically, the power consumption value of the vehicle under each subsection road condition under normal temperature (25 ℃) is determined according to the average traffic flow speed and the average acceleration of the vehicle corresponding to each subsection road condition. And determining the current power consumption value of the vehicle under different subsection road conditions at the current ambient temperature by setting weighting coefficients for the power consumption of the vehicle under different temperatures.
Further, fig. 3 provides a flowchart for determining a current power consumption value in the method for determining remaining mileage of a vehicle, which specifically includes the following steps:
s2031, determining the normal temperature power consumption value of each subsection road condition according to the average acceleration and the average speed of the traffic flow corresponding to each subsection road condition by combining with a set power consumption table.
In this embodiment, the power consumption table may be specifically understood as a data table for correspondingly storing power consumption values of the vehicle at different speeds and different accelerations under a certain temperature condition; assuming that the temperature corresponding to the data stored in the electricity consumption table is normal temperature, the normal temperature electricity consumption value can be specifically understood as the electricity consumption value of the vehicle at the temperature corresponding to the data of the electricity consumption table.
Specifically, the vehicle speed, the vehicle acceleration and the power consumption value of the vehicle are correspondingly stored in the power consumption table, an interpolation interval and an interpolation point are determined according to the vehicle speed and the vehicle acceleration corresponding to the average acceleration and the traffic flow average speed corresponding to each subsection road condition in the power consumption table, and the normal-temperature power consumption value of the interpolation point is determined by adopting a trilinear interpolation according to the power consumption values corresponding to the upper limit and the lower limit of the interpolation interval.
Further, fig. 4 provides an implementation flowchart for forming a power consumption meter in the method for determining remaining mileage of a vehicle, which specifically includes the following steps:
s311, acquiring and correspondingly storing each acceleration of the vehicle at the preset temperature and each speed corresponding to each acceleration to form each vehicle working condition.
And S312, determining the corresponding vehicle power consumption value of each vehicle working condition in the preset simulation environment.
And S313, correspondingly storing the working conditions of the vehicles and the power consumption values of the vehicles to form the power consumption table.
In the present embodiment, the vehicle operating condition may be specifically understood as different driving conditions of the vehicle, for example, the vehicle speed v1And an acceleration of a1Is driven, this time a vehicle condition. The preset simulation environment may be specifically understood as a pre-designed simulation program for calculating the power consumption of the vehicle according to the acceleration and the speed of the vehicle.
Specifically, different working conditions (vehicle speed curve with time) are listed for a vehicle type, the total distance of each working condition is S in the above step, and the power consumption of the vehicle type at a certain temperature in each working condition is calculated by performing simulation or other test means in a preset simulation environment, and in this embodiment, the normal temperature of 25 ℃ is taken as an example. The specific method for enumerating the working conditions is as follows: each working condition corresponds to one vehicle acceleration and one vehicle speed, m vehicle accelerations are enumerated according to the sequence that the vehicle accelerations increase from small to large, then r vehicle speeds are enumerated according to the sequence that the vehicle speeds increase from small to large, the number of the enumerated working conditions is m r, the vehicle corresponds to one power consumption under each working condition, and then m r power consumption values are obtained, so that power consumption MAP tables corresponding to different vehicle accelerations under different vehicle speeds are obtained, and the MAP tables are stored in the whole vehicle controller in advance. The above-described vehicle acceleration and vehicle speed are both average values.
For example, the following steps are carried out: the enumerated vehicle accelerations are 10, and are [0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5] respectively, the units are m/s ^2, the enumerated vehicle speeds are 12, and are [ 102030405060708090100110120 ] respectively, the units are km/h, the corresponding working conditions are 120, and each working condition in the 120 working conditions corresponds to the power consumption of one vehicle, so that 120 power consumption MAP tables corresponding to the 10 vehicle accelerations and the 12 vehicle speeds are obtained, and the specific expression is shown in Table 1.
TABLE 1 vehicle Power consumption values corresponding to different working conditions at 25 deg.C
Figure BDA0002469172830000101
Figure BDA0002469172830000111
S2032, determining the current average power consumption coefficient according to the current environment temperature and a given average power consumption coefficient table.
In this embodiment, the average power consumption coefficient table may be specifically understood as a data table storing power consumption coefficients at different temperatures.
Specifically, linear interpolation is carried out on the current environment temperature in different temperatures of the average power consumption coefficient table, an interpolation interval and an interpolation point are determined, and the current average power consumption coefficient of the interpolation point is determined according to the power consumption coefficients corresponding to the upper limit and the lower limit of the interpolation interval.
Further, fig. 5 provides an implementation flowchart of forming an average power consumption coefficient table in the method for determining the remaining mileage of the vehicle, which specifically includes the following steps:
s321, selecting the corresponding set number of vehicle working conditions at each set temperature.
And S322, determining the working condition power consumption value corresponding to each vehicle working condition included in the set temperature for each set temperature.
S323, determining the power consumption coefficient of each vehicle working condition at the set temperature according to the ratio of the power consumption value of each working condition to the power consumption value of the vehicle corresponding to the working condition, and taking the average value of each power consumption coefficient as the average power consumption coefficient at the set temperature.
And S324, storing the set temperatures and the corresponding average power consumption coefficients in a correlation mode to form an average power consumption coefficient table.
Specifically, nine working conditions of the vehicle working conditions are selected, and the power consumption of the vehicle under the nine working conditions at different temperatures is calculated through a simulation means or respectively obtained through tests. The temperatures are [ -30, -20, -10, 0, 10, 20, 30] respectively, in degrees C. And dividing the power consumption values of the nine working conditions at different temperatures and the power consumption of the nine working conditions at 25 ℃ to obtain corresponding power consumption coefficients, wherein each working condition of each temperature corresponds to one power consumption coefficient, averaging the nine power consumption coefficients corresponding to each temperature to obtain an average power consumption coefficient at the temperature, further obtaining an average power consumption coefficient table at different temperatures, and storing the average power consumption coefficient table in the whole vehicle controller in advance.
The specific selection method of the nine working conditions comprises the following steps: selecting nine combined working conditions according to the average acceleration of three types, namely low, medium and high, and the average speed of three types, namely, selecting nine combined working conditions that the vehicle acceleration is 1, 2 and 3m/s ^2 and the vehicle speed is 30, 60 and 90km/h, wherein the nine selected working conditions are shown in the following table 2; the power consumption under different temperatures under the working conditions is shown in the following table 3:
nine working conditions selected in table 2
Figure BDA0002469172830000121
TABLE 3 Power consumption under nine working conditions at different temperatures
Figure BDA0002469172830000122
Figure BDA0002469172830000131
The power consumption 101 and the power consumption 15 in the table 3 are divided to obtain a power consumption coefficient phi 101 corresponding to the working condition 15 at the temperature of-30 ℃, the power consumption 102 and the power consumption 18 in the table 3 are divided to obtain a power consumption coefficient phi 102 corresponding to the working condition 18 at the temperature of-30 ℃, and the rest is repeated to obtain power consumption coefficients phi 101, phi 102 and … phi 109 corresponding to the nine working conditions at the temperature of-30 ℃, and the power consumption coefficients corresponding to the nine working conditions at different temperatures are shown in the table 4.
TABLE 4 Power consumption coefficient under different temperatures under nine working conditions
Figure BDA0002469172830000132
The nine power consumption coefficients are averaged to obtain an average power consumption coefficient phi (-30) at-30 ℃, and the average power consumption coefficients at other temperatures are respectively obtained according to the same method. The average power consumption coefficients corresponding to different temperatures are shown in table 5, and the values in table 5 are stored in the vehicle control unit in advance.
TABLE 5 average Power consumption coefficient Table
Figure BDA0002469172830000141
S2033, determining the current power consumption value of each subsection road condition according to each normal temperature power consumption value and the current average power consumption coefficient.
Specifically, the normal-temperature power consumption value corresponding to each segmented road condition is multiplied by the current average power consumption coefficient to obtain the current power consumption value of each segmented road condition.
S204, determining the power consumption of the sectional accessories of the road conditions of each section according to the consumed power and the average speed of each traffic flow; and S208 is performed.
In the present embodiment, the power consumption of the segmented accessories can be specifically understood as the ratio of the power consumed by all the accessories in the vehicle to the average speed of the traffic flow of each segmented road condition. The embodiment of the invention provides a formula for calculating the power consumption of a sectional accessory, which comprises the following steps:
E_aver＝(Phigh+Plow)/Vaverage*100；
Wherein E _ aver is the power consumption of the segmentation accessories and has the unit of kWh/100 km; phighThe unit is the sum of the power of all high-pressure components such as an air conditioner and the like and is kW; plowThe sum of the power of all low-pressure components, in kW; vAverageThe average speed of the traffic flow of the front subsection road condition is km/h.
S205, determining historical power consumption values based on the electric power, the historical electric power and the traveled distance from the starting time to the current collection time; and S210 is performed.
In the present embodiment, the historical electric power may be specifically understood as electric power of the vehicle battery at each time from the start time when the vehicle starts driving to the current collection time. The historical power consumption value is specifically understood to be the average power consumption of the vehicle from the driving starting time to the current collection time.
Specifically, an embodiment of the present invention provides a formula for calculating a historical power consumption value:
Figure BDA0002469172830000151
wherein E _ bef is the historical electricity consumption value of the vehicle from the initial position to the current position, and the unit is kWh/100 km; p _ batt is the corresponding battery end electric power of the vehicle at each moment, and the unit is kW; s _ bef is the distance, km, of the vehicle from the starting location to the current location.
And taking the current power consumption value, the section accessory power consumption and the historical power consumption value as the power consumption information. It should be noted that, in this embodiment, there is no time sequence between the execution of the steps S203-S205.
S206, determining that the sum of products of the current power consumption value of each subsection road condition and the corresponding subsection distance of each subsection road condition is a first sum value.
S207, taking the ratio of the first sum to the current distance from the vehicle to the terminal as the current average power consumption; and S210 is performed.
In the present embodiment, the current average power consumption may be specifically understood as the average power consumption of the vehicle from the current position to another position ahead. The embodiment of the invention provides a formula for calculating the current average power consumption:
Figure BDA0002469172830000152
wherein E _ front is the current average power consumption, and the unit is kWh/100 km; e _ now is the current power consumption value corresponding to each front subsection road condition, and the unit is kWh/100 km; siThe unit of the segmentation distance corresponding to each front segmentation road condition is km; s _ total is the total distance of the vehicle from the current position to another position ahead, in km.
And S208, determining the sum of the products of the electricity consumption of the accessories of each section and the section distance of the road condition of each section as a second sum value.
And S209, taking the ratio of the second sum to the current distance from the terminal point as the average power consumption of the accessory.
In the present embodiment, the average power consumption of the accessories can be specifically understood as the average power consumption of all the high-low voltage accessories in the vehicle from the current position to another position. The current distance from the end point is understood in particular to mean the distance of the vehicle from the current position to the end point, i.e. to another position. The embodiment of the invention provides a formula for calculating the average power consumption of accessories, which comprises the following steps:
Figure BDA0002469172830000161
wherein E _ auxi is the average power consumption of the accessories and has the unit of kWh/100 km; e _ aver is the power consumption of the segmented accessories and has the unit of kWh/100 km; siThe unit of the segmentation distance corresponding to each front segmentation road condition is km; s _ total is the total distance of the vehicle from the current location to another location in km.
And S210, determining the remaining mileage based on the current average power consumption, the accessory average power consumption and the historical power consumption value in combination with vehicle speed information.
In this embodiment, the vehicle speed information may be specifically understood as speed information of the vehicle and traffic flow speed information of the front section road condition.
Specifically, the historical power consumption value, the current average power consumption and the accessory average power consumption have different influences on the calculation of the remaining mileage, so that the weighting coefficients of the historical power consumption value, the current average power consumption and the accessory average power consumption are determined according to the vehicle speed information, and the remaining mileage is calculated.
Further, fig. 6 provides a flowchart for determining the remaining mileage in the method for determining the remaining mileage of the vehicle, which specifically includes the following steps:
s2101, the difference absolute value between the average speed of the vehicle and the average speed of the traffic flow from the current position of the vehicle to the current terminal in the vehicle speed information is determined.
In the embodiment, the average speed can be specifically understood as the average speed of the vehicle from the starting position to the current position, and is sent to the vehicle controller by the vehicle body stability control unit; the average traffic speed can be specifically understood as the average traffic speed of the vehicle in the road from the current position to another position, and is sent to the vehicle controller by the navigation controller.
And S2102, determining the current power consumption weighting coefficient according to the absolute value of the difference value and a given power consumption weighting coefficient table in a linear interpolation mode.
In this embodiment, the power consumption weighting coefficient table may be specifically understood as a data table in which the power consumption weighting coefficient and the absolute value of the difference between the average speed and the average traffic speed are stored.
Specifically, a power consumption weighting coefficient table is searched according to the absolute value of the difference value, an interpolation interval is determined, an interpolation point is further determined, a power consumption weighting coefficient corresponding to the interpolation point is determined according to the power consumption weighting coefficients of the upper limit and the lower limit of the interpolation interval, and the power consumption weighting coefficient corresponding to the interpolation point is used as the current power consumption weighting coefficient. For example, table 6 provides a power consumption weighting factor table.
TABLE 6 Power consumption weighting factor Table
Figure BDA0002469172830000171
The determination process of the current power consumption weighting coefficient is illustrated as follows: when the average speed is 70km/h and the average speed of the traffic flow is 55km/h, the interpolation absolute value is 15km/h, the interpolation interval is determined to be 10-20, and the interpolation point is 15. The power consumption weighting coefficient corresponding to the interpolation interval lower limit of 10km/h is 0.9, the power consumption weighting coefficient corresponding to the interpolation interval upper limit of 20km/h is 0.8, and the power consumption weighting coefficient of the interpolation point is [ (15-10)/(20-10) ] (0.8-0.9) +0.9 is 0.85, so the current power consumption weighting coefficient is 0.85.
S2103, determining that the product of the historical power consumption value and the current power consumption weighting coefficient is a first product.
S2104, the difference value between 1 and the current power consumption weighting coefficient and the sum of the current average power consumption and the accessory average power consumption are determined to be a third sum value, and the product of the difference value and the third sum value is determined to be a second product.
S2105, determining the sum of the first product and the second product as a fourth sum value, and taking the ratio of the residual capacity of the vehicle to the fourth sum value as the residual mileage.
Specifically, the embodiment of the present invention provides a formula for calculating the remaining mileage:
Figure BDA0002469172830000181
range _ remaining is the remaining mileage of the vehicle in km; battery _ energy is the remaining capacity of the vehicle, and the unit is kWh;
Figure BDA0002469172830000182
the current power consumption weighting coefficient is a unit-free; e _ bef is the historical electricity consumption value of the vehicle from the initial position to the current position, and the unit is kWh/100 km; e _ front is the current average power consumption, and the unit is kWh/100 km; e _ auxi is the average power consumption of the accessories, in kWh/100 km.
Further, the method further comprises: when the remaining mileage is greater than the last remaining mileage and the difference between the remaining mileage and the last remaining mileage is greater than a preset threshold, taking the sum of the last remaining mileage and the preset threshold as the remaining mileage; and when the remaining mileage is less than the last remaining mileage and the difference value between the last remaining mileage and the remaining mileage is greater than a preset threshold, taking the difference between the last remaining mileage and the preset threshold as the remaining mileage.
In this embodiment, the preset threshold may be specifically understood as a numerical value used for determining a difference between the remaining mileage and the previous remaining mileage, for example, 2km or 5 km.
For example, assuming that the preset threshold is 5km, the last remaining mileage is 50 km: when the remaining mileage is 52km, 52-50<5, determining that the remaining mileage is 52 km; when the remaining mileage is 56km, 56-50>5, and determining that the remaining mileage is 55km plus 5; when the remaining mileage is 48km, 50-48<5, determining that the remaining mileage is 48 km; and when the remaining mileage is 43km, 50-43>5, and determining that the remaining mileage is 50-5-45 km. When the remaining mileage of the vehicle is predicted, the remaining mileage may be larger than the previous remaining mileage due to the influence of the driving habits of the driver.
Further, the method further comprises: acquiring a position point corresponding to the vehicle at the previous vehicle flow speed updating moment; and when the fact that the driving distance with the position point as the starting point is greater than the subsection distance corresponding to the current subsection road condition of the vehicle is monitored, updating the average traffic flow speed of each subsection road condition after the current subsection road condition of the vehicle.
Specifically, the average traffic speed is changed during the running process of the vehicle, and the updating time of the average traffic speed takes the running distance as a period. And when the situation that the running distance accumulated by taking the position point as a starting point is greater than the sectional distance corresponding to the road condition of the current section of the vehicle is monitored, updating the average speed of the traffic flow of each sectional road condition after the road condition of the current section of the vehicle. If the distance traveled by the vehicle does not exceed the segment distance, the navigation controller does not update the data and maintains the last moment data.
The embodiment of the invention provides a method for determining remaining mileage of a vehicle, which comprises the steps of obtaining pre-stored average traffic flow speed corresponding to each segmented road condition and running information of the vehicle at the current acquisition moment; determining power consumption information according to the average traffic flow speed and the running information corresponding to each subsection road condition; the remaining mileage is determined according to the power consumption information, the problem that the remaining driving mileage of the vehicle is inaccurate only predicted according to historical information is solved, different types of power consumption information corresponding to all segmented road conditions of the vehicle are determined by obtaining the average speed of the traffic flow and the information of the acceleration, the ambient temperature, the accessory power consumption, the electric power of the battery and the like of the vehicle at the current moment, the remaining mileage of the vehicle is further determined according to the power consumption information, the calculation process is simple, the problem of low accuracy caused by predicting the remaining mileage through the historical power consumption information under the condition of large variation of the driving working condition is solved, the accuracy of predicting the remaining mileage is improved, and the effect of simply and accurately predicting the remaining mileage of the vehicle is achieved. Different proportions are set for the historical power consumption value, the current average power consumption and the accessory average power consumption through the current power consumption weighting coefficient, and the accuracy of the calculation result is improved. By judging and processing the calculated remaining mileage, the error influence caused by sudden change of the calculation result is avoided, and sudden change of the mileage is prevented.
EXAMPLE III
Fig. 7 is a block diagram of a remaining mileage determining apparatus for a vehicle according to a third embodiment of the present invention, the apparatus including: an acquisition module 31, a power consumption information determination module 32, and a mileage determination module 33.
The acquiring module 31 is configured to acquire pre-stored average traffic speed corresponding to each segmented road condition and driving information of a vehicle at a current acquisition time; the power consumption information determining module 32 is configured to determine power consumption information according to the average traffic flow speed and the driving information corresponding to the road conditions of the respective segments; and the mileage determining module 33 is configured to determine the remaining mileage according to the power consumption information.
The embodiment of the invention provides a device for determining the remaining mileage of a vehicle, which solves the problem that the prediction of the remaining mileage of the vehicle is not accurate only according to historical information, determines different types of power consumption information corresponding to each segmented road condition of the vehicle by obtaining information such as the average speed of traffic flow and the acceleration of the vehicle at the current moment, the ambient temperature, the power consumption of accessories, the electric power of a battery and the like, and further determines the remaining mileage of the vehicle according to the power consumption information.
Further, the running information includes at least an average acceleration, a current ambient temperature, a consumed power of the accessories, and an electric power of the battery.
Further, the electricity consumption information determination module 32 includes:
and the current power consumption value determining unit is used for determining the current power consumption value of each subsection road condition according to the average speed and the average acceleration of the traffic flow corresponding to each subsection road condition and the current ambient temperature.
And the section accessory power consumption determining unit is used for determining the section accessory power consumption of each section road condition according to the consumed power and the average speed of each traffic flow.
And a historical power consumption value determination unit for determining a historical power consumption value based on the electric power in combination with each historical electric power and the traveled distance from the starting time to the current collection time.
And the power consumption information determining unit is used for taking the current power consumption value, the section accessory power consumption and the historical power consumption value as the power consumption information.
Further, the current power consumption value determining unit is specifically configured to determine a normal-temperature power consumption value of each segmented road condition according to the average acceleration and the average traffic flow speed corresponding to each segmented road condition in combination with a set power consumption table; determining a current average power consumption coefficient according to the current environment temperature and a given average power consumption coefficient table; and determining the current power consumption value of each subsection road condition according to each normal-temperature power consumption value and the current average power consumption coefficient.
Further, the apparatus further comprises:
the power consumption meter forming module is used for acquiring and correspondingly storing each acceleration of the vehicle at a preset temperature and each speed corresponding to each acceleration to form each vehicle working condition; determining the corresponding vehicle power consumption value of each vehicle working condition under a preset simulation environment; and correspondingly storing the working conditions of the vehicles and the power consumption values of the vehicles to form the power consumption table.
Further, the apparatus further comprises:
the average power consumption coefficient table forming module is used for selecting the corresponding set number of vehicle working conditions at each set temperature; determining a working condition power consumption value corresponding to each vehicle working condition included in the set temperature for each set temperature; determining the power consumption coefficient of each vehicle working condition at the set temperature according to the ratio of each working condition power consumption value to the corresponding vehicle power consumption value of the vehicle working condition, and taking the average value of each power consumption coefficient as the average power consumption coefficient at the set temperature; and (4) storing each set temperature and the corresponding average power consumption coefficient in a correlation manner to form an average power consumption coefficient table.
Further, the mileage determining module 33 includes:
and the first sum value determining unit is used for determining that the sum of products of the current power consumption value of each subsection road condition and the corresponding subsection distance of each subsection road condition is a first sum value.
And the current average power consumption determining unit is used for taking the ratio of the first sum value to the current distance from the terminal point of the vehicle as the current average power consumption.
And the second sum value determining unit is used for determining that the sum of products of the electricity consumption of the accessories of the sections and the section distance of the road condition of the sections is a second sum value.
And the accessory average power consumption determining unit is used for taking the ratio of the second sum value to the current distance from the terminal point as the accessory average power consumption.
And the mileage determining unit is used for determining the remaining mileage based on the current average power consumption, the accessory average power consumption and the historical power consumption value in combination with the vehicle speed information.
Further, the mileage determining unit is specifically configured to determine an average speed of the vehicle and an absolute value of a difference between a current position of the vehicle and a current average speed of the traffic flow from the current position to the current destination in the vehicle speed information; determining a current power consumption weighting coefficient according to the absolute value of the difference value and a given power consumption weighting coefficient table in combination with a linear interpolation mode; determining the product of the historical power consumption value and the current power consumption weighting coefficient as a first product; determining a difference value of the current power consumption weighting coefficient and a sum of the current average power consumption and the accessory average power consumption as a third sum value, and determining a product of the difference value and the third sum value as a second product; and determining the sum of the first product and the second product as a fourth sum value, and taking the ratio of the residual capacity of the vehicle to the fourth sum value as the residual mileage.
Further, the apparatus further comprises:
the judging module is used for taking the sum of the last remaining mileage and a preset threshold value as the remaining mileage when the remaining mileage is larger than the last remaining mileage and the difference value between the remaining mileage and the last remaining mileage is larger than the preset threshold value; and when the remaining mileage is less than the last remaining mileage and the difference value between the last remaining mileage and the remaining mileage is greater than a preset threshold, taking the difference between the last remaining mileage and the preset threshold as the remaining mileage.
Further, the apparatus further comprises:
and the segmented road condition determining module is used for determining the segmented road conditions.
Further, the segmented road condition determining module is specifically used for acquiring a vehicle driving starting point and a current terminal point; segmenting the driving starting point and the current terminal point according to a set segmentation distance; and when the situation that the vehicle runs to the current terminal point is monitored, taking the current terminal point as the running starting point, taking next position information as the current terminal point, and returning to the step of segmenting the running starting point and the current terminal point according to the set segmentation distance so as to update the road condition of each segment.
Further, the apparatus further comprises:
the updating module is used for acquiring a position point corresponding to the vehicle at the previous vehicle flow speed updating moment; and when the fact that the driving distance with the position point as the starting point is greater than the subsection distance corresponding to the current subsection road condition of the vehicle is monitored, updating the average traffic flow speed of each subsection road condition after the current subsection road condition of the vehicle.
The vehicle remaining mileage determining device provided by the embodiment of the invention can execute the vehicle remaining mileage determining method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the executing method.
Example four
Fig. 8 is a schematic structural diagram of a vehicle according to a fourth embodiment of the present invention, as shown in fig. 8, the vehicle includes a controller 70, a memory 71, an input device 72, an output device 73, and a sensor 74; the number of controllers 70 and sensors 74 in the vehicle may be one or more, and one controller 70 and one sensor 74 are illustrated in fig. 8; the controller 70, the memory 71, the input device 72, the output device 73, and the sensor 74 in the vehicle may be connected by a bus or other means, and the bus connection is exemplified in fig. 8.
A sensor 74 for acquiring the current ambient temperature; the memory 71 serves as a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the vehicle remaining range determining method in the embodiment of the present invention (for example, the acquiring module 31, the electricity consumption information determining module 32, and the range determining module 33 in the vehicle remaining range determining apparatus). The controller 70 executes various functional applications and data processing of the vehicle, that is, implements the vehicle remaining range determining method described above, by running software programs, instructions, and modules stored in the memory 71.
The memory 71 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 71 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 71 may further include memory remotely located from the controller 70, which may be connected to the vehicle over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 72 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function controls of the vehicle. The output device 73 may include a display device such as a display screen.
EXAMPLE five
Embodiments of the present invention also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a method for determining remaining mileage of a vehicle, the method comprising:
acquiring pre-stored traffic flow average speed corresponding to each segmented road condition and running information of a vehicle at the current acquisition moment;
determining power consumption information according to the average traffic flow speed and the running information corresponding to each subsection road condition;
and determining the remaining mileage according to the power consumption information.
Of course, the storage medium provided by the embodiment of the present invention contains computer-executable instructions, and the computer-executable instructions are not limited to the operations of the method described above, and may also perform related operations in the method for determining remaining mileage of a vehicle provided by any embodiment of the present invention.
Based on the understanding that the technical solutions of the present invention can be embodied in the form of software products, such as floppy disks, Read-Only memories (ROMs), Random Access Memories (RAMs), flash memories (F L ASHs), hard disks or optical disks of a computer, etc., and include instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the vehicle remaining range determining apparatus, the included units and modules are only divided according to the functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A method for determining remaining mileage of a vehicle, comprising:
acquiring pre-stored traffic flow average speed corresponding to each segmented road condition and running information of a vehicle at the current acquisition moment;
determining power consumption information according to the average traffic flow speed and the running information corresponding to each subsection road condition;
and determining the remaining mileage according to the power consumption information.
2. The method according to claim 1, wherein the running information includes at least an average acceleration, a current ambient temperature, a consumed power of an accessory, and an electric power of a battery;
correspondingly, determining power consumption information according to the average traffic flow speed and the running information corresponding to each subsection road condition, wherein the power consumption information comprises the following steps:
determining the current power consumption value of each subsection road condition according to the average speed and the average acceleration of the traffic flow corresponding to each subsection road condition and the current environment temperature;
determining the power consumption of the sectional accessories of the road conditions of each section according to the consumed power and the average speed of each traffic flow;
determining a historical power consumption value based on the electric power and each historical electric power and the traveled distance from the starting moment to the current collection moment;
and taking the current power consumption value, the section accessory power consumption and the historical power consumption value as the power consumption information.
3. The method as claimed in claim 2, wherein the determining the current power consumption value of each segmented road condition according to the average speed and the average acceleration of the traffic flow and the current ambient temperature corresponding to each segmented road condition comprises:
determining a normal-temperature power consumption value of each subsection road condition according to the average acceleration and the average traffic flow speed corresponding to each subsection road condition in combination with a set power consumption table;
determining a current average power consumption coefficient according to the current environment temperature and a given average power consumption coefficient table;
and determining the current power consumption value of each subsection road condition according to each normal-temperature power consumption value and the current average power consumption coefficient.
4. The method of claim 3, wherein the electricity consumption table is formed by the steps of:
acquiring and correspondingly storing each acceleration of the vehicle at a preset temperature and each speed corresponding to each acceleration to form each vehicle working condition;
determining the corresponding vehicle power consumption value of each vehicle working condition under a preset simulation environment;
correspondingly storing the working conditions of each vehicle and the power consumption value of each vehicle to form a power consumption table;
the average power consumption coefficient table is formed by the following steps:
selecting a corresponding set number of vehicle working conditions at each set temperature;
determining a working condition power consumption value corresponding to each vehicle working condition included in the set temperature for each set temperature;
determining the power consumption coefficient of each vehicle working condition at the set temperature according to the ratio of each working condition power consumption value to the corresponding vehicle power consumption value of the vehicle working condition, and taking the average value of each power consumption coefficient as the average power consumption coefficient at the set temperature;
and (4) storing each set temperature and the corresponding average power consumption coefficient in a correlation manner to form an average power consumption coefficient table.
5. The method of claim 2, wherein determining remaining range from the power consumption information comprises:
determining the sum of products of the current power consumption value of each subsection road condition and the corresponding subsection distance of each subsection road condition as a first sum;
taking the ratio of the first sum to the current distance from the terminal of the vehicle as the current average power consumption;
determining the sum of products of the power consumption of each segmented accessory and the segmented distance of each segmented road condition as a second sum value;
taking the ratio of the second sum to the current distance from the terminal point as the average power consumption of the accessory;
and determining the remaining mileage based on the current average power consumption, the accessory average power consumption and the historical power consumption value in combination with vehicle speed information.
6. The method of claim 5, wherein determining the remaining range based on the current average power consumption, accessory average power consumption, historical power consumption values in combination with vehicle speed information comprises:
determining the difference absolute value of the average speed of the vehicle and the average speed of the traffic flow from the current position of the vehicle to the current terminal point in the vehicle speed information;
determining a current power consumption weighting coefficient according to the absolute value of the difference value and a given power consumption weighting coefficient table in combination with a linear interpolation mode;
determining the product of the historical power consumption value and the current power consumption weighting coefficient as a first product;
determining a difference value between 1 and the current power consumption weighting coefficient and a sum of the current average power consumption and the accessory average power consumption as a third sum value, and determining a product of the difference value and the third sum value as a second product;
and determining the sum of the first product and the second product as a fourth sum value, and taking the ratio of the residual capacity of the vehicle to the fourth sum value as the residual mileage.
7. The method according to any one of claims 1 to 6, wherein before the obtaining of the pre-stored average traffic speed corresponding to each segmented road condition and the driving information of the vehicle at the current collection time, the method further comprises:
and determining the road conditions of all the sections.
8. The method of any one of claims 1-6, further comprising:
acquiring a position point corresponding to the vehicle at the previous vehicle flow speed updating moment;
and when the fact that the driving distance with the position point as the starting point is greater than the subsection distance corresponding to the current subsection road condition of the vehicle is monitored, updating the average traffic flow speed of each subsection road condition after the current subsection road condition of the vehicle.
9. A remaining mileage determining apparatus for a vehicle, comprising:
the acquisition module is used for acquiring the pre-stored traffic flow average speed corresponding to each segmented road condition and the running information of the vehicle at the current acquisition moment;
the power consumption information determining module is used for determining power consumption information according to the traffic flow average speed and the running information corresponding to each subsection road condition;
and the mileage determining module is used for determining the remaining mileage according to the power consumption information.
10. A vehicle, characterized in that the vehicle comprises:
one or more sensors for acquiring a current ambient temperature;
one or more controllers;
a storage device for storing one or more programs,
when executed by the one or more controllers, cause the one or more controllers to implement a vehicle remaining range determination method as recited in any of claims 1-8.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113424067A (en) * 2021-05-12 2021-09-21 华为技术有限公司 Method and device for estimating remaining battery capacity
WO2021218313A1 (en) * 2020-04-27 2021-11-04 中国第一汽车股份有限公司 Method and device for determining remaining mileage of vehicle and vehicle
CN114103987A (en) * 2021-11-30 2022-03-01 上海洛轲智能科技有限公司 Vehicle endurance early warning method and device and electronic equipment

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114475257B (en) * 2022-01-25 2023-07-11 中通客车股份有限公司 Method and system for calculating driving range of pure electric bus
CN114407662B (en) * 2022-02-11 2024-05-03 西北工业大学 Residual mileage prediction method and device, electric automobile and storage medium
CN115952932B (en) * 2023-03-14 2023-05-23 中汽研汽车检验中心（天津）有限公司 Method for predicting power consumption and hydrogen consumption of vehicle based on driving route
CN116215314B (en) * 2023-05-08 2023-09-12 深圳市创诺新电子科技有限公司 Vehicle-mounted power supply electric quantity control device and control method

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2714338A1 (en) * 1993-12-24 1995-06-30 Daimler Benz Ag Method and device for limiting running power
CN103213504A (en) * 2013-04-27 2013-07-24 北京交通大学 Driving range estimation method of electric car
WO2013108246A2 (en) * 2012-01-17 2013-07-25 Better Place GmbH Approximation of remaining travelable distance of a vehicle powered by a battery
CN103234544A (en) * 2013-04-27 2013-08-07 北京交通大学 Methods for building power consumption factor model and estimating following-up driving range of electric car
JP5831257B2 (en) * 2012-01-27 2015-12-09 トヨタ自動車株式会社 Vehicle having at least an electric motor as a drive source
CN107009912A (en) * 2017-04-11 2017-08-04 北京新能源汽车股份有限公司 Adaptive approach, device and automobile that a kind of continual mileage of vehicle is calculated
CN107264326A (en) * 2017-07-04 2017-10-20 重庆长安汽车股份有限公司 A kind of method that continual mileage to pure electric automobile is estimated
CN108422881A (en) * 2018-03-16 2018-08-21 奇瑞汽车股份有限公司 A kind of pure electric automobile course continuation mileage computational methods and system
CN109421543A (en) * 2017-08-21 2019-03-05 上海蔚来汽车有限公司 Vehicles remaining mileage evaluation method and device with power supply system
CN109606120A (en) * 2019-01-15 2019-04-12 深圳四海万联科技有限公司 Electric car course continuation mileage real-time update system and method based on big data
CN109733248A (en) * 2019-01-09 2019-05-10 吉林大学 Pure electric automobile remaining mileage model prediction method based on routing information
CN111038334A (en) * 2019-12-31 2020-04-21 华人运通(江苏)技术有限公司 Method and device for predicting driving range of electric automobile

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103236177B (en) * 2013-03-26 2015-02-18 清华大学 Control method of intelligent interactive system with vehicular network multi-system fusion
KR101916511B1 (en) * 2016-05-16 2018-11-07 현대자동차주식회사 Vehicle system and battery charging method thereof
CN109795371A (en) * 2019-02-19 2019-05-24 一汽-大众汽车有限公司 Electric vehicle charging based reminding method and device based on mobile terminal route planning
CN110667434A (en) * 2019-09-11 2020-01-10 南京航空航天大学 Working condition-adaptive pure electric vehicle driving mileage estimation method and system
CN111483322B (en) * 2020-04-27 2021-10-15 中国第一汽车股份有限公司 Method and device for determining remaining mileage of vehicle and vehicle
CN111497624B (en) * 2020-04-27 2022-02-25 中国第一汽车股份有限公司 Method and device for determining remaining mileage of vehicle and vehicle

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2714338A1 (en) * 1993-12-24 1995-06-30 Daimler Benz Ag Method and device for limiting running power
WO2013108246A2 (en) * 2012-01-17 2013-07-25 Better Place GmbH Approximation of remaining travelable distance of a vehicle powered by a battery
JP5831257B2 (en) * 2012-01-27 2015-12-09 トヨタ自動車株式会社 Vehicle having at least an electric motor as a drive source
CN103213504A (en) * 2013-04-27 2013-07-24 北京交通大学 Driving range estimation method of electric car
CN103234544A (en) * 2013-04-27 2013-08-07 北京交通大学 Methods for building power consumption factor model and estimating following-up driving range of electric car
CN107009912A (en) * 2017-04-11 2017-08-04 北京新能源汽车股份有限公司 Adaptive approach, device and automobile that a kind of continual mileage of vehicle is calculated
CN107264326A (en) * 2017-07-04 2017-10-20 重庆长安汽车股份有限公司 A kind of method that continual mileage to pure electric automobile is estimated
CN109421543A (en) * 2017-08-21 2019-03-05 上海蔚来汽车有限公司 Vehicles remaining mileage evaluation method and device with power supply system
CN108422881A (en) * 2018-03-16 2018-08-21 奇瑞汽车股份有限公司 A kind of pure electric automobile course continuation mileage computational methods and system
CN109733248A (en) * 2019-01-09 2019-05-10 吉林大学 Pure electric automobile remaining mileage model prediction method based on routing information
CN109606120A (en) * 2019-01-15 2019-04-12 深圳四海万联科技有限公司 Electric car course continuation mileage real-time update system and method based on big data
CN111038334A (en) * 2019-12-31 2020-04-21 华人运通(江苏)技术有限公司 Method and device for predicting driving range of electric automobile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021218313A1 (en) * 2020-04-27 2021-11-04 中国第一汽车股份有限公司 Method and device for determining remaining mileage of vehicle and vehicle
CN113424067A (en) * 2021-05-12 2021-09-21 华为技术有限公司 Method and device for estimating remaining battery capacity
CN114103987A (en) * 2021-11-30 2022-03-01 上海洛轲智能科技有限公司 Vehicle endurance early warning method and device and electronic equipment

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