CN109117438A - Vehicles remaining mileage evaluation method and device with power supply system - Google Patents
Vehicles remaining mileage evaluation method and device with power supply system Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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Abstract
The present invention relates to a kind of vehicles remaining mileage evaluation method and device with power supply system, the described method comprises the following steps: detect vehicle parameter, information of road surface and the driving mode with the vehicles of power supply system；Corresponding mileage storage value is obtained from mileage storing data library according to the vehicle parameter, information of road surface and driving mode；Remaining mileage is calculated according to acquired mileage storage value.The method and device have the current driving cycles of the vehicles of power supply system by detection, correct course continuation mileage value, improve the accuracy of remaining mileage estimation, and user is facilitated to make the decision of driving path, alleviate mileage anxiety, so that the user experience is improved.
Description
Technical field
The present invention relates to the vehicles control technology fields with power supply system, more particularly to one kind to have power supply system
Vehicles remaining mileage evaluation method and device.
Background technique
The continual mileage of the vehicles with power supply system refers to the vehicles with power supply system from power electric power storage
The full full state in pond starts to the mileage walked when off-test as defined in standard.Remaining mileage refers to automobile in present case
Under, the mileage that keeps existing drive manner that can also travel.Since the vehicles with power supply system cannot achieve quick charge,
Therefore the accuracy that the remaining mileage of the vehicles with power supply system calculates is particularly important.
It is that main engine plants are continued on the road surface of standard that exploitation at present, which has the vehicles remaining mileage calculating of power supply system,
The mileage that navigates counts, and vehicle travels road condition, wind speed and traffic congestion situation with power supply system can all make vehicle
Consumption energy is different, therefore the complexity of vehicle running environment affects the vehicles remaining mileage meter with power supply system
Calculate the accuracy of result.This travels user the complexity of road conditions, and the remaining mileage that instrument is shown often feels user
The place to denounce, significantly reduces user experience.And existing course continuation mileage evaluation method is driven based on last mostly
The practical mileage of circulation is for statistical analysis, and road conditions complexity and driver's driving style is totally different often makes remaining mileage
The accuracy of estimation reduces.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of vehicles remaining mileage with power supply system and estimate
Method and apparatus are calculated, there are the current driving cycles of the vehicles of power supply system by detecting, course continuation mileage value is corrected, improves
The accuracy of remaining mileage estimation, facilitates user to make the decision of driving path, alleviates mileage anxiety, to improve user's body
It tests.
In order to solve the above-mentioned technical problems, the present invention provides a kind of, and the vehicles remaining mileage with power supply system is estimated
Calculation method, comprising the following steps:
Detect vehicle parameter, information of road surface and the driving mode with the vehicles of power supply system；
Corresponding mileage storage is obtained from mileage storing data library according to the vehicle parameter, information of road surface and driving mode
Value；
Remaining mileage is calculated according to acquired mileage storage value.
Further, the driving mode includes one in low-speed mode, middle fast mode, high speed mode and high-speed mode
Kind is a variety of.
Further, the driving mode further includes according to speed and acceleration magnitude, by the driving of each speed interval
Mode division is acceleration mode, deceleration mode, constant velocity mode and idling mode, in which:
The acceleration mode is that speed is greater than 0, and acceleration is greater than 0 driving mode；
The deceleration mode is that speed is greater than 0, driving mode of the acceleration less than 0；
The constant velocity mode is that speed is greater than 0, and acceleration is equal to 0 driving mode；
The idling mode is that speed is equal to 0, and acceleration is equal to 0 driving mode.
Further, the method also includes:
The mileage storing data library under each driving mode is established, is specifically included:
The state-of-charge SOC of battery pack is divided into N number of section SOC, respectively the 1st section, the 2nd section ... the section N,
Wherein N is the integer greater than 2；
It is corresponding for vehicle parameter information, information of road surface, driving pattern information and each section is stored in each section
Distance storage value.
Further, the calculation method of the distance storage value are as follows:
Acquire the speed signal with the vehicles of power supply system；
If speed signal is effective, by vehicle speed at the end of from the current section the SOC time started to the current section SOC
Between integrated, obtain corresponding distance storage value；
If speed signal is invalid, convert to obtain vehicle speed multiplied by base ratio by motor speed, then to from current
The section SOC time started to the current section SOC end time integral, obtains corresponding distance storage value.
Further, the method also includes:
Mileage storing data library is updated, is specifically included:
Using the mileage storage value in each section SOC as driving cycle reference value next time；
When vehicle powers on again, the affiliated section SOC is detected, if current SOC on interval division node, starts to calculate row
Mileage is sailed, until the section terminates, to obtain the SOC distance calculated value, is updated according to the SOC distance calculated value
The mileage storage value in the section SOC；
If current SOC is not on interval division node, which does not update distance storage value, until next
A SOC interval division node starts to calculate mileage travelled, until the section terminates, obtains SOC distance calculated value, according to
The SOC distance calculated value updates the mileage storage value in the section SOC.
Further, the update mileage storage value includes:
When SOC enters a certain section, starts to calculate mileage travelled, until the section terminates, SOC distance is calculated
Calculated value；
The SOC distance calculated value is subtracted into upper driving cycle distance value, if difference be greater than 0, and
Greater than the threshold value of setting, then upper driving cycle distance value is added to the value of the threshold value, is updated to the corresponding area SOC
Between mileage storage value；
If difference is less than 0, and absolute value is greater than the threshold value of setting, then subtracts upper driving cycle distance value
The threshold value is updated to the mileage storage value in the corresponding section SOC；
If absolute difference is less than or equal to the threshold value of setting, SOC distance calculated value is updated to the corresponding section SOC
Mileage storage value.
Further, the corresponding threshold value of every kind of driving mode, the calculation method of the threshold value are as follows: in every kind of driving mode
Under, in driving cycle of vehicle, obtains N number of SOC distance calculated value and subtract corresponding upper driving cycle section
The difference of mileage value arrived, M driving cycle of vehicle obtain M × N number of difference, and M × N number of difference absolute value is averaged,
Then obtain the threshold value under corresponding driving mode, the integer that wherein M is positive.
Further, the vehicle parameter includes power battery SOC, air-conditioning state, throttle, gear, brake and/or speed
Information, the information of road surface include pavement state and/or road gradient.
Further, remaining mileage is calculated to specifically include:
The mileage value in the current section SOC is subjected to once linear interpolation calculation to SOC point in the section, obtains the area SOC
Between middle SOC point mileage value, the mileage value of current SOC point is added with section distance value below, is obtained in residue
Journey S.
Further, the speed of the low-speed mode is 0-30km/h, and the speed of middle fast mode is 30-60km/h, middle height
The speed of fast mode is 60-90km/h, and the speed of high-speed mode is 90km/h or more.
According to another aspect of the present invention, a kind of vehicles remaining mileage estimation dress with power supply system is provided
It sets, described device includes:
Detection module, for detecting vehicle parameter, information of road surface and the driving mode of the vehicles with power supply system；
Data acquisition module, for according to the vehicle parameter, information of road surface and driving mode from mileage storing data library
Obtain corresponding mileage storage value；
Remaining mileage computing module, for calculating remaining mileage according to acquired mileage storage value.
Further, described device further includes driving module division module, and the driving mode division module will drive mould
Formula is divided into one of low-speed mode, middle fast mode, high speed mode and high-speed mode or a variety of；
Further, the driving module division module is according to speed and acceleration magnitude, by the middle fast mode, middle height
Each of fast mode and high-speed mode are further divided into acceleration mode, deceleration mode, constant velocity mode, the low-speed mode into
One step is divided into acceleration mode, deceleration mode, constant velocity mode and idling mode, wherein
The acceleration mode is that speed is greater than 0, and acceleration is greater than 0 driving mode；
The deceleration mode is that speed is greater than 0, driving mode of the acceleration less than 0；
The constant velocity mode is that speed is greater than 0, and acceleration is equal to 0 driving mode；
The idling mode is that speed is equal to 0, and acceleration is equal to 0 driving mode.
Further, described device further includes Database module, and the mileage for establishing under each driving mode is deposited
Store up database.
Further, the Database module includes:
SOC interval division unit, for the state-of-charge SOC of battery pack to be divided into N number of section SOC, respectively the 1st area
Between, the 2nd section ... the section N, wherein N is integer greater than 2；
Data storage cell, for storing vehicle parameter information, information of road surface, driving pattern information in each section
And the corresponding distance storage value in each section.
Further, the Database module further includes distance storage value computing unit,
The distance storage value computing unit is used to acquire the speed signal of the vehicles with power supply system, meter
Distance storage value is calculated, specifically:
If speed signal is effective, by vehicle speed at the end of from the current section the SOC time started to the current section SOC
Between integrated, obtain corresponding distance storage value；
If speed signal is invalid, convert to obtain vehicle speed multiplied by base ratio by motor speed, then to from current
The section SOC time started to the current section SOC end time integral, obtains corresponding distance storage value.
Further, described device further includes database update module, for updating mileage storing data library；
The database update module includes:
Initialization unit, for using the mileage storage value in each section SOC as driving cycle reference value next time；
Mileage storage value updating unit when powering on again for vehicle, detects the affiliated section SOC, if current SOC is in section
On partitioning site, then start to calculate mileage travelled, until the section terminates, to obtain the SOC distance calculated value, according to institute
State the mileage storage value that SOC distance calculated value updates the section SOC；
If current SOC is not on interval division node, which does not update distance storage value, until next
A SOC interval division node starts to calculate mileage travelled, until the section terminates, obtains SOC distance calculated value, according to
The SOC distance calculated value updates the mileage storage value in the section SOC.
Further, the mileage storage value updating unit includes:
SOC distance computation subunit, for starting to calculate mileage travelled when SOC enters a certain section, until should
Section terminates, and SOC distance calculated value is calculated；
SOC distance value revise subelemen, for the SOC distance calculated value to be subtracted a upper driving cycle
The distance value if difference is greater than 0, and is greater than the threshold value of setting, then adds upper driving cycle distance value
The threshold value is updated to the mileage storage value in the corresponding section SOC；
If difference is less than 0, and absolute value is greater than the threshold value of setting, then subtracts upper driving cycle distance value
The threshold value obtains, and is updated to the mileage storage value in the corresponding section SOC；
If absolute difference is less than or equal to the threshold value of setting, SOC distance calculated value is updated to the corresponding section SOC
Mileage storage value.
Further, the mileage storage value updating unit further includes threshold calculations subelement, for calculating every kind of driving
The corresponding threshold value of mode, specifically includes: under every kind of driving mode, in driving cycle of vehicle, obtaining in N number of section SOC
Journey calculated value subtracts the difference that corresponding upper driving cycle distance value obtains, M driving cycle of vehicle obtain M ×
M × N number of difference absolute value is averaged by N number of difference, then obtains the threshold value under corresponding driving mode, wherein M is positive whole
Number.
Further, it further includes information acquisition unit that the mileage information, which obtains module, for acquire vehicle position information,
The vehicle parameter for having the vehicles of power supply system current and practical current traffic information are obtained in real time, and determine vehicle drive
Mode；
The vehicle parameter includes power battery SOC, air-conditioning state, throttle, gear, brake and/or vehicle speed information, described
Information of road surface includes pavement state and/or road gradient.
Further, the remaining mileage computing module is also used to: by the mileage value in the current section SOC in the section
SOC point carries out once linear interpolation calculation, obtains the mileage value of SOC point in the section SOC, by the mileage value of current SOC point and
Section distance value below is added, and obtains remaining mileage S.
Further, the speed of the low-speed mode is 0-30km/h, and the speed of middle fast mode is 30-60km/h, middle height
The speed of fast mode is 60-90km/h, and the speed of high-speed mode is 90km/h or more.
According to another aspect of the invention, a kind of remote server is provided, the remote server is for receiving dynamic vapour
Vehicle vehicle parameter, information of road surface and driving pattern information, and establish the mileage storing data library under each driving mode.
Further, the remote server receives target position information, according to the current traffic work with power supply system
The vehicle parameter of tool generates driving pattern information and best recommendation paths information.
According to another aspect of the invention, a kind of vehicles remaining mileage estimation system with power supply system is provided
System, the system comprises remaining mileage estimation device and remote server, the remaining mileage estimation device passes through In-vehicle networking
It is interacted with the remote server.
According to another aspect of the invention, a kind of computer readable storage medium is provided, the storage medium includes more
Item instruction, described instruction are executed by processor the step in the method.
The present invention has obvious advantages and beneficial effects compared with the existing technology.By above-mentioned technical proposal, the present invention
A kind of vehicles remaining mileage evaluation method and device with power supply system can reach comparable technical progress and practical
Property, and with the extensive utility value in industry, at least have the advantage that
The method of the invention and device are able to detect the current driving mode of the vehicles with power supply system, and amendment is continuous
Boat mileage value, according to corresponding driving mode, vehicle parameter, information of road surface obtain mileage information, improve remaining mileage estimation
Accuracy, facilitate user to make the decision of driving path, alleviate mileage anxiety, so that the user experience is improved.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is the vehicles remaining mileage evaluation method process with power supply system that one embodiment of the invention provides
Figure；
Fig. 2 is the SOC interval division schematic diagram that one embodiment of the invention provides；
Fig. 3 is that the vehicles remaining mileage with power supply system that one embodiment of the invention provides estimates device signal
Figure.
Specific embodiment
It is intended to keep original of the invention complete below in conjunction with each example of attached drawing description and is comprehensively communicated to art technology
Personnel, it is of the invention not for limiting.According to the technique and scheme of the present invention, the unit that do not state clearly herein, mould be may also comprise
Block, element and/or step.Every kilometer of energy consumption different from of the vehicles with power supply system under different driving modes, because
The course continuation mileage of the vehicles under this identical SOC (State of Charge, state-of-charge) state with power supply system is not
It is identical.Accurately to estimate remaining mileage, the present invention is directed to the vehicle parameter of the different vehicles with power supply system, road surface
Information and driving mode carry out remaining mileage estimation, to improve the accurate of the vehicles remaining mileage estimation with power supply system
Property.
The vehicles with power supply system include electric vehicle and mixed motor-car, using method and system of the invention,
For estimating the pure electric vehicle course continuation mileage of electric car and mixed motor-car, and export in the right way to user, such as pass through
Instrument board is shown to user.
Following embodiment is illustrated using electric car as the example of the vehicles with power supply system, but is had
The vehicles of power supply system are not limited to electric car.
Embodiment one,
A kind of evaluation method of Remainder Range of Electric Vehicle specifically comprises the following steps: as shown in Fig. 1
Step S1, vehicle parameter, information of road surface and the driving mode of electric car are detected；
Electric car shows different driving cycles, such as constant speed, acceleration, deceleration and idling with the variation of driver's throttle
Deng, because of different driving cycles, acceleration and speed difference, therefore driving mode can use the velocity and acceleration etc. of vehicle
Information is assessed.In different speed intervals, Vehicular system efficiency is different, especially electric efficiency, the power loss of system
There is also very big differences.For example, accelerate in high-speed mode, although acceleration is little, high speed bring system power damage
There is very big difference with the system power dissipation under low-speed mode in consumption.Therefore it can further be driven according to the division of different vehicle speed intervals
Sail mode.
The driving mode includes the multiple driving modes divided according to preset vehicle speed value, for example, according to different speed areas
Between driving mode is divided into one of low-speed mode, middle fast mode, high speed mode and/or high-speed mode or a variety of.
In the present embodiment, the speed of the low-speed mode is 0-30km/h, and the speed of middle fast mode is 30-60km/h, in
The speed of high-speed mode is 60-90km/h, and the speed of high-speed mode is 90km/h or more.
The driving mode further includes according to speed and acceleration magnitude, by the middle fast mode, high speed mode and height
Each of fast mode is further divided into acceleration mode, deceleration mode, constant velocity mode, and the low-speed mode is further divided into
Acceleration mode, deceleration mode, constant velocity mode and idling mode, in which:
The acceleration mode is that speed is greater than 0, and acceleration is greater than 0 driving mode；
The deceleration mode is that speed is greater than 0, driving mode of the acceleration less than 0；
The constant velocity mode is that speed is greater than 0, and acceleration is equal to 0 driving mode；
The idling mode is that speed is equal to 0, and acceleration is equal to 0 driving mode.
It follows that low-speed mode can further comprise idling mode, low speed acceleration mode, low-range reduction mode, low speed
Constant velocity mode；Middle fast mode can further comprise that middling speed accelerates mode, middling speed deceleration mode, middling speed constant velocity mode；High speed mould
Formula can further comprise that high speed accelerates mode, high speed deceleration mode, high speed constant velocity mode；High-speed mode can be wrapped further
Include high speed acceleration mode, high deceleration mode, high-speed constant-speed mode.According to partition mode as shown in this embodiment, electronic vapour
Totally 13 kinds of the driving mode of vehicle.
The vehicle parameter includes power battery SOC, air-conditioning state, throttle, gear, brake and/or vehicle speed information, described
Information of road surface includes pavement state and/or road gradient.Wherein, vehicle speed information can be obtained directly by instrument board.
Step S2, it is obtained according to the vehicle parameter, information of road surface and driving mode from mileage storing data library corresponding
Mileage storage value；
Wherein, vehicle parameter, road surface are believed in the vehicle parameter, information of road surface and driving mode and mileage storing data library
It ceases corresponding with driving mode.And each group of vehicle parameter, information of road surface and driving mode have corresponding mileage storage value.It is described
Method further include:
The mileage storing data library under each driving mode is established, is specifically included:
The state-of-charge SOC of battery pack is divided into N number of section SOC, respectively the 1st section, the 2nd section ... the section N,
Wherein N is the integer greater than 2；In the present embodiment, the SOC of power battery is divided into 10 sections, as shown in Fig. 2, wherein
SOC 0%-10% is the 1st section, 20%-30% is the 2nd section, and so on, the 10th section 90%-100%.The mileage
Vehicle parameter information, information of road surface, driving pattern information and the storage of corresponding distance are stored in storing data library
Value, the distance storage value are under a certain section SOC, and power battery can support the distance of electric automobile during traveling.
Memory block spatial database is established, stores vehicle parameter, road surface letter in the database in each SOC storage section
Breath, driving mode and corresponding mileage storage value.Wherein, information of road surface includes road surface position, road gradient, road traffic situation
Etc. information, road surface position information can identify highway, urban road or outskirts of a town road according to navigation system.Such as work as front truck
Remaining capacity is located at the 7th section, traveling is in urban road, and air-conditioning is opened (herein only at 65% between the memory block SOC
A vehicle parameter is enumerated, other vehicle parameter informations such as throttle, gear, brake, vehicle speed information no longer arrange one by one herein
Lift), driving mode 1, after vehicle parameter information, information of road surface and driving pattern information determine, from mileage storing data library
Corresponding mileage storage value is obtained, as shown in table 1.
Table 1
Table 1 is under different vehicle parameter information, information of road surface and driving mode in the mileage storing data library of the present embodiment
Corresponding mileage storage value sample table.
The calculation method of the distance storage value are as follows:
S201, the speed signal for acquiring electric car；
Can by ABS system (anti-blocking brake system) or other can acquire electronic vapour described in the system acquisition of speed signal
The speed signal of vehicle.
S202, in vehicle travel process, if speed signal is effective, by vehicle speed to since the current section SOC
Time to the current section the SOC end time is integrated, and corresponding distance storage value is obtained；
If speed signal is invalid, convert to obtain vehicle speed, the main deceleration multiplied by base ratio by motor speed
Than referring to the gear ratio of main reducing gear in vehicle drive axle, it is equal to the angular velocity of rotation of transmission shaft than upper axle half shafts
Angular velocity of rotation, be also equal to the ratio between their revolving speed.Angular velocity of rotation of the angular velocity of rotation of transmission shaft than upper axle half shafts
And their revolving speed is known quantity.It is integrated again to from the current section the SOC time started to the current section the SOC end time,
Obtain corresponding distance storage value.
The method also includes: mileage storing data library is updated, is specifically comprised the following steps:
Step S203, using the mileage storage value in each section SOC as driving cycle reference value next time；
Step S204, when vehicle powers on again, the affiliated section SOC is detected, if currently SOC is on interval division node,
Start to calculate mileage travelled, until the section terminates, to obtain the SOC distance calculated value, according to the SOC distance
Calculated value updates the mileage storage value in the section SOC；If current SOC is not on interval division node, which does not update
Distance storage value, until next SOC interval division node, starts to calculate mileage travelled, until the section terminates, obtain
SOC distance calculated value updates the mileage storage value in the section SOC according to the SOC distance calculated value.
Preferably, the update mileage storage value includes:
When S205, SOC enter a certain section, start to calculate mileage travelled, until the section terminates, using entire car controller
SOC distance calculated value is calculated；When SOC enters next section, full-vehicle control calculates mileage and sets 0 again, again
Start to calculate mileage.
S206, the SOC distance calculated value is subtracted into upper driving cycle distance value, the present embodiment
In, by the corresponding storage of data in mileage storing data library into memory, the memory is arranged in the electronic vapour
Che Shang.The memory, preferably EEPROM can also be other types memory,
If difference is greater than 0, and is greater than the threshold value of setting, then by upper driving cycle section stored in memory
Mileage value is updated plus the value of the threshold value into memory；
If difference is less than 0, and absolute value is greater than the threshold value of setting, then by a upper driving cycle stored in memory
The distance value subtracts the value that the threshold value obtains and updates into memory；
Institute's absolute difference is less than or equal to the threshold value of setting, then updates SOC distance calculated value into memory.Example
Such as, the SOC value of electrographic recording is 60% under a upper driving cycle, is charged after a period of time and then the secondary SOC that powers on is
86%, then the 9th section locating for 86% is updated without mileage storage value, until carrying out the 8th section when SOC is reduced to 80%
Mileage storage value updates, until SOC is reduced to 70%, full-vehicle control calculates mileage storage value clear 0, recalculates in the 7th section
Journey storage value.
The different driving modes (under idling operation vehicle static condition, not considering temporarily) of 12 kinds of vehicle, every kind of driving
Mode corresponds to a threshold value, further increases the accuracy of mileage estimation.If threshold value of the vehicle under low speed acceleration mode is δ1、
Threshold value under low speed constant velocity mode is δ2, low-range reduction mode threshold value be δ3；Threshold value under middling speed acceleration mode is δ4, in
Threshold value under fast constant velocity mode is δ5, the threshold value under middling speed deceleration mode be δ6；Threshold value under high speed acceleration mode is δ7、
Threshold value under high speed constant velocity mode is δ8, the threshold value under high speed deceleration mode be δ9；Threshold value under high speed acceleration mode is
δ10, the threshold value under high-speed constant-speed mode be δ11, the threshold value under high deceleration mode be δ12.Threshold values is according to driving mode according to square
The arrangement of formation formula, as shown in table 2.Under accelerating mode, δ10>δ7>δ4>δ1, under cruising mode, δ11>δ8>δ5>δ2, under decelerating mode,
δ12>δ9>δ6>δ3。
Table 2
The calculation method of the threshold value are as follows: under every kind of driving mode, in driving cycle of vehicle, obtain N number of area SOC
Between mileage calculation value subtract the difference that corresponding upper driving cycle distance value stored in memory obtains, vehicle
M driving cycle obtains M × N number of difference, and M × N number of difference absolute value is averaged, then obtains under corresponding driving mode
Threshold value, the integer that wherein M is positive.
Step S3, remaining mileage is calculated according to acquired mileage storage value.
The mileage value in the current section SOC is subjected to once linear interpolation calculation to SOC point in the section, obtains the area SOC
Between middle SOC point mileage value, the mileage value of current SOC point is added with section distance value below, is obtained in residue
Journey S.
Remaining mileage estimation is carried out using the method, is able to detect the current driving mode of electric car, amendment continuation of the journey
Mileage value improves the accuracy of remaining mileage estimation, and user is facilitated to make the decision of driving path, alleviates mileage anxiety, from
And the user experience is improved.
Embodiment two,
A kind of Remainder Range of Electric Vehicle estimation device, as shown in Fig. 3, described device includes:
Detection module 1, for detecting the vehicle parameter, information of road surface and driving mode of electric car；
Data acquisition module 2, for according to the vehicle parameter, information of road surface and driving mode from mileage storing data library
Obtain corresponding mileage storage value；
Remaining mileage computing module 3, for calculating remaining mileage according to acquired mileage storage value.
In different speed intervals, Vehicular system efficiency is different, especially electric efficiency, accelerates in high-speed mode, although
Acceleration is little, but since high speed bring system power dissipation cannot be neglected.Therefore need different vehicle speed intervals into
Row driving mode divides.
Described device further includes driving module division module, and the driving mode division module is divided according to preset vehicle speed value
Multiple driving modes, for example, the driving mode division module according to vehicle speed value be divided into low-speed mode, middle fast mode, in
One of high-speed mode and high-speed mode are a variety of.
In the present embodiment, the speed of the low-speed mode is 0-30km/h, and the speed of middle fast mode is 30-60km/h, in
The speed of high-speed mode is 60-90km/h, and the speed of high-speed mode is 90km/h or more.
The driving module division module is further according to speed and acceleration magnitude, by the middle fast mode, high speed
Each of mode and high-speed mode are further divided into acceleration mode, deceleration mode, constant velocity mode, and the low-speed mode is into one
Step is divided into acceleration mode, deceleration mode, constant velocity mode and idling mode, wherein
The acceleration mode is that speed is greater than 0, and acceleration is greater than 0 driving mode；
The deceleration mode is that speed is greater than 0, driving mode of the acceleration less than 0；
The constant velocity mode is that speed is greater than 0, and acceleration is equal to 0 driving mode；
The idling mode is that speed is equal to 0, and acceleration is equal to 0 driving mode.
It follows that low-speed mode can further comprise idling mode, low speed acceleration mode, low-range reduction mode, low speed
Constant velocity mode；Middle fast mode can further comprise that middling speed accelerates mode, middling speed deceleration mode, middling speed constant velocity mode；High speed mould
Formula can further comprise that high speed accelerates mode, high speed deceleration mode, high speed constant velocity mode；High-speed mode can be wrapped further
Include high speed acceleration mode, high deceleration mode, high-speed constant-speed mode.According to partition mode as shown in this embodiment, electronic vapour
It includes 13 kinds of driving modes that vehicle, which has altogether,.
Described device further includes Database module, the mileage storing data library for establishing under each driving mode.
The Database module includes:
SOC interval division unit, for the state-of-charge SOC of electronics group to be divided into N number of section SOC, respectively the 1st area
Between, the 2nd section ... the section N, wherein N is integer greater than 2；
Data storage cell, for storing vehicle parameter information, information of road surface, driving pattern information in each section
And the corresponding distance storage value in each section.
In the present embodiment, power SOC battery dump energy is divided into 10 sections, as shown in Fig. 2, wherein SOC
0%-10% is the 1st section, 20%-30% is the 2nd section, and so on, the 10th section 90%-100%.Each section SOC
Store corresponding storage mileage value, vehicle parameter, pavement state and driving pattern information.
Memory block spatial database is established, stores vehicle parameter, road surface letter in the database in each SOC storage section
Breath, driving mode and corresponding mileage store distance.Such as current vehicle remaining capacity, at 65%, SOC is located between memory block
7th section, traveling is in urban road, and air-conditioning is opened, driving mode 1, and storing the distance is 20, as shown in table 3.
Table 3
Table 3 is under different vehicle parameter information, information of road surface and driving mode in the mileage storing data library of the present embodiment
Corresponding mileage storage value sample table.
The Database module further includes distance storage value computing unit,
The distance storage value computing unit is used to acquire the speed signal of electric car, wherein can pass through ABS
System (anti-blocking brake system) acquire electric car speed signal, can also he by other can acquire speed signal be
System, acquires the speed signal.
According to the speed signal of the acquisition, computation interval mileage storage value, specifically:
If speed signal is effective, by vehicle speed at the end of from the current section the SOC time started to the current section SOC
Between integrated, obtain corresponding distance storage value；
If speed signal is invalid, convert to obtain vehicle speed multiplied by base ratio by motor speed, then to from current
The section SOC time started to the current section SOC end time integral, obtains corresponding distance storage value.
Described device further includes database update module, for updating mileage storing data library；
The database update module includes:
Initialization unit, for using the mileage storage value in each section SOC as driving cycle reference value next time；
Mileage storage value updating unit, for detecting the affiliated section SOC when vehicle powers on again, if current SOC is in area
Between on partitioning site, then start to calculate mileage travelled, until the section terminates, to obtain the SOC distance calculated value, according to
The SOC distance calculated value updates the mileage storage value in the section SOC；
If current SOC is not on interval division node, which does not update distance storage value, until next
A SOC interval division node starts to calculate mileage travelled, until the section terminates, obtains SOC distance calculated value, according to
The SOC distance calculated value updates the mileage storage value in the section SOC.
The mileage storage value updating unit includes:
SOC distance computation subunit, for starting to calculate mileage travelled when SOC enters a certain section, until should
Section terminates, and SOC distance calculated value is calculated；
In the present embodiment, by the corresponding storage of data in mileage storing data library into memory, the memory
It is arranged on the electric car.The memory, preferably EEPROM can also be other types memory,
SOC distance value revise subelemen, for the SOC distance calculated value to be subtracted storage in memory
Upper driving cycle distance value, if difference be greater than 0, and be greater than setting threshold value, then will store in memory
Upper driving cycle distance value plus the threshold value value update into memory, wherein distance value can also
It is stored in other memories, however it is not limited to memory；
If difference is less than 0, and absolute value is greater than the threshold value of setting, then by a upper driving cycle stored in memory
The distance value subtracts the value that the threshold value obtains and updates into memory；
If absolute difference is less than or equal to the threshold value of setting, SOC distance calculated value is updated into memory.
For example, under a upper driving cycle electrographic recording SOC value be 60%, charged after a period of time and then be secondary on
Electric SOC is 86%, then the 9th section locating for 86% is updated without mileage storage value, until carrying out when SOC is reduced to 80%
8th distance storage value updates, until SOC is reduced to 70%, full-vehicle control calculates mileage storage value clear 0, recalculates the 7th
Distance storage value.
The different driving modes (under idling operation vehicle static condition, not considering temporarily) of 12 kinds of vehicle, every kind of driving
Mode corresponds to a threshold value, further increases the accuracy of mileage estimation.If threshold value of the vehicle under low speed acceleration mode is δ1、
Threshold value under low speed constant velocity mode is δ2, low-range reduction mode threshold value be δ3；Threshold value under middling speed acceleration mode is δ4, in
Threshold value under fast constant velocity mode is δ5, the threshold value under middling speed deceleration mode be δ6；Threshold value under high speed acceleration mode is δ7、
Threshold value under high speed constant velocity mode is δ8, the threshold value under high speed deceleration mode be δ9；Threshold value under high speed acceleration mode is
δ10, the threshold value under high-speed constant-speed mode be δ11, the threshold value under high deceleration mode be δ12.Threshold values is according to driving mode according to square
The arrangement of formation formula, as shown in table 4.Under accelerating mode, δ10>δ7>δ4>δ1, under cruising mode, δ11>δ8>δ5>δ2, under decelerating mode,
δ12>δ9>δ6>δ3。
| δ1 | δ2 | δ3 |
| δ4 | δ5 | δ6 |
| δ7 | δ8 | δ9 |
| δ10 | δ11 | δ12 |
Table 4
The mileage storage value updating unit further includes threshold calculations subelement, corresponding for calculating every kind of driving mode
Threshold value specifically includes: under every kind of driving mode, in driving cycle of vehicle, obtaining N number of SOC distance calculated value and subtracts
The difference for going corresponding upper driving cycle distance value stored in memory to obtain, M driving cycle of vehicle
M × N number of difference is obtained, M × N number of difference absolute value is averaged, then obtains the threshold value under corresponding driving mode, wherein M
The integer being positive.
It further includes information acquisition unit that the mileage information, which obtains module, for acquiring vehicle position information, obtaining in real time
The current vehicle parameter of electric car and practical current traffic information, and determine vehicle driving model；
The vehicle parameter includes power battery SOC, air-conditioning state, throttle, gear, brake and/or vehicle speed information, described
Information of road surface includes pavement state and/or road gradient.
The remaining mileage computing module 3 is also used to: the mileage value in the current section SOC carries out SOC point in the section
Once linear interpolation calculation obtains the mileage value of SOC point in the section SOC, below the mileage value of current SOC point and the section
Distance value be added, obtain remaining mileage S.
Remaining mileage estimation is carried out using described device, is able to detect the current driving mode of electric car, amendment continuation of the journey
Mileage value improves the accuracy of remaining mileage estimation, and user is facilitated to make the decision of driving path, alleviates mileage anxiety, from
And the user experience is improved.
Embodiment three,
A kind of remote server, the remote server are used to receive the vehicle parameter of electric car, information of road surface and drive
Pattern information is sailed, and establishes the mileage storing data library under each driving mode.
The remote server receives target position information, according to the vehicle parameter of current electric car, generates and drives mould
Formula information and best recommendation paths information.The advantageous effects of the remote server are that data are reached distal end and taken by each car
Business device, the data of more vehicles constantly upload, and database constantly improve, and the accuracy of data is continuously improved.Optionally, each car is logical
It crosses car networking technology and data is uploaded to cloud, upload mode is not limited to car networking technology.
Remote server can also provide recommendation paths service, and driver inputs from current location to mesh in navigation system
Location information, navigation system can generate mulitpath for driver refer to, remote server was according to current vehicle parameter, past
Best recommendation paths are made in travel state and driving behavior, are selected for driver.In addition, more preferably to instruct driving for driver
Behavior is sailed, remaining mileage is extended, platform can be controlled in the car, driving mode button is provided, such as energy-saving mode (ECO mode), comfortable mould
Formula (Normal mode), motor pattern (Sport mode), mad mode (Crazy mode), special vehicle is in not enough power supply, electricity
When pond power can not meet operator demand, remote server can remind driver's selection correspondingly driving mode.Further mention
Rise user experience.As can be seen that the driving mode illustratively controlled as mentioned herein by driving mode button with press above
According to the driving mode that vehicle speed intervals divide, division benchmark is different, and the two is not identical.
The invention also includes a kind of Remainder Range of Electric Vehicle estimating systems, and the system comprises remaining mileages to estimate device
And remote server, the remaining mileage estimation device are interacted by In-vehicle networking and the remote server, realize electricity
The remaining mileage of electrical automobile is estimated.
The remote server can be setting server at the far end, says broaderly, can be cloud server.
The invention also includes a kind of computer readable storage medium, the storage medium includes a plurality of instruction, described instruction
The step in one the method for embodiment is realized when being executed by processor.
All embodiments of the invention are applicable not only to electric car, are also applied for other traffic works with power supply system
Tool.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention
Any simple modification, equivalent change and modification to the above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (17)
1. a kind of vehicles remaining mileage evaluation method with power supply system, it is characterised in that: the following steps are included:
Detect vehicle parameter, information of road surface and the driving mode with the vehicles of power supply system；
Corresponding mileage storage value is obtained from mileage storing data library according to the vehicle parameter, information of road surface and driving mode；
Remaining mileage is calculated according to acquired mileage storage value.
2. the vehicles remaining mileage evaluation method according to claim 1 with power supply system, it is characterised in that:
The driving mode includes one of low-speed mode, middle fast mode, high speed mode and high-speed mode or a variety of.
3. the vehicles remaining mileage evaluation method according to claim 2 with power supply system, it is characterised in that:
Each further division according to speed and acceleration magnitude, in the middle fast mode, high speed mode and high-speed mode
To accelerate mode, deceleration mode, constant velocity mode, the low-speed mode is further divided into acceleration mode, deceleration mode, constant speed mould
Formula and idling mode, in which:
The acceleration mode is that speed is greater than 0, and acceleration is greater than 0 driving mode；
The deceleration mode is that speed is greater than 0, driving mode of the acceleration less than 0；
The constant velocity mode is that speed is greater than 0, and acceleration is equal to 0 driving mode；
The idling mode is that speed is equal to 0, and acceleration is equal to 0 driving mode.
4. the vehicles remaining mileage evaluation method according to claim 1 with power supply system, it is characterised in that: institute
State method further include:
The mileage storing data library under each driving mode is established, is specifically included:
The state-of-charge SOC of battery pack is divided into N number of section SOC, respectively the 1st section, the 2nd section ... the section N, wherein
N is the integer greater than 2；
Vehicle parameter information, information of road surface, the corresponding section of driving pattern information and each section are stored for each section
Mileage storage value.
5. the vehicles remaining mileage evaluation method according to claim 4 with power supply system, it is characterised in that:
The calculation method of the distance storage value are as follows:
Acquire the speed signal with the vehicles of power supply system；
If speed signal is effective, by vehicle speed to from the current section the SOC time started to the current section the SOC end time into
Row integral, obtains corresponding distance storage value；
If speed signal is invalid, convert to obtain vehicle speed multiplied by base ratio by motor speed, then to from the current area SOC
Between time started to the current section the SOC end time integrate, obtain corresponding distance storage value.
6. the vehicles remaining mileage evaluation method according to claim 4 with power supply system, it is characterised in that: institute
State method further include:
Mileage storing data library is updated, is specifically included:
Using the mileage storage value in each section SOC as driving cycle reference value next time；
When vehicle powers on again, the affiliated section SOC is detected, if current SOC on interval division node, starts to calculate in traveling
Journey, until the section terminates, to obtain the SOC distance calculated value, being updated according to the SOC distance calculated value should
The mileage storage value in the section SOC；
If current SOC is not on interval division node, which does not update distance storage value, until next SOC
Interval division node starts to calculate mileage travelled, until the section terminates, SOC distance calculated value is obtained, according to described
SOC distance calculated value updates the mileage storage value in the section SOC.
7. the vehicles remaining mileage evaluation method according to claim 6 with power supply system, it is characterised in that:
The update mileage storage value includes:
When SOC enters a certain section, start to calculate mileage travelled, until the section terminates, the calculating of SOC distance is calculated
Value；
The SOC distance calculated value is subtracted into upper driving cycle distance value, if difference is greater than 0, and is greater than
Upper driving cycle distance value is then added the threshold value by the threshold value of setting, is updated to the mileage in the corresponding section SOC
Storage value；
If difference is less than 0, and absolute value is greater than the threshold value of setting, then subtracts upper driving cycle distance value described
Threshold value is updated to the mileage storage value in the corresponding section SOC；
If absolute difference is less than or equal to the threshold value of setting, SOC distance calculated value is updated in the corresponding section SOC
Journey storage value.
8. the vehicles remaining mileage evaluation method according to claim 7 with power supply system, it is characterised in that:
The corresponding threshold value of every kind of driving mode, the calculation method of the threshold value are as follows: under every kind of driving mode, vehicle is once driven
It sails in circulation, obtains the difference arrived that N number of SOC distance calculated value subtracts the corresponding upper driving cycle distance value
Value, M driving cycle of vehicle obtain M × N number of difference, M × N number of difference absolute value are averaged, then obtain corresponding driving
Threshold value under mode, the integer that wherein M is positive.
9. the vehicles remaining mileage evaluation method according to claim 1 with power supply system, it is characterised in that:
The vehicle parameter includes power battery SOC, air-conditioning state, throttle, gear, brake and/or vehicle speed information, the road surface
Information includes pavement state and/or road gradient.
10. the vehicles remaining mileage evaluation method according to claim 4 with power supply system, it is characterised in that:
Remaining mileage is calculated to specifically include:
The mileage value in the current section SOC is subjected to once linear interpolation calculation to SOC point in the section, is obtained in the section SOC
The mileage value of current SOC point is added with section distance value below, obtains remaining mileage S by the mileage value of SOC point.
11. the vehicles remaining mileage evaluation method according to claim 2 or 3 with power supply system, feature exist
In:
The speed of the low-speed mode is 0-30km/h, and the speed of middle fast mode is 30-60km/h, and the speed of high speed mode is
60-90km/h, the speed of high-speed mode are 90km/h or more.
12. a kind of vehicles remaining mileage with power supply system estimates device, it is characterised in that: described device includes:
Detection module, for detecting vehicle parameter, information of road surface and the driving mode of the vehicles with power supply system；
Data acquisition module, for being obtained according to the vehicle parameter, information of road surface and driving mode from mileage storing data library
Corresponding mileage storage value；
Remaining mileage computing module, for calculating remaining mileage according to acquired mileage storage value.
13. the vehicles remaining mileage according to claim 12 with power supply system estimates device, which is characterized in that
Described device further includes that the module of operating procedure described in any claim in 2-11 is required for perform claim.
14. a kind of remote server, it is characterised in that: the remote server is used to receive the vehicles with power supply system
Vehicle parameter, information of road surface and driving pattern information, and establish the mileage storing data library under each driving mode.
15. remote server according to claim 14, it is characterised in that: the remote server receives target position letter
Breath generates driving pattern information and best recommendation paths letter according to the vehicle parameter of the current vehicles with power supply system
Breath.
16. a kind of vehicles remaining mileage estimating system with power supply system, it is characterised in that: the system comprises residues
Mileage estimates device and remote server, and the remaining mileage estimation device is carried out by In-vehicle networking and the remote server
Interaction.
17. a kind of computer readable storage medium, which is characterized in that the storage medium includes a plurality of instruction, described instruction quilt
The step as described in any claim in claim 1 to 11 is realized when processor executes.
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| PCT/CN2018/092466 WO2018233702A1 (en) | 2017-06-23 | 2018-06-22 | Method and device for estimating remaining range of transportation means having power supply system |
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