CN107543588B - A kind of vehicle oil consumption monitoring method based on ultrasonic listening oil consumption fluctuation filtering - Google Patents
A kind of vehicle oil consumption monitoring method based on ultrasonic listening oil consumption fluctuation filtering Download PDFInfo
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Abstract
The invention discloses a kind of vehicle oil consumption monitoring methods based on ultrasonic listening oil consumption fluctuation filtering, which comprises detection time is averagely divided into multiple periods；Within each period, location information is obtained in real time, and corresponding accumulative mileage, the corresponding accumulative oil consumption in each location information using ultrasonic wave real-time detection vehicle are obtained according to the real time position of positioning；Accumulative fuel consumption data unreasonable in each period is smoothly filtered；Accumulative mileage data unreasonable in each period are smoothly filtered；Accumulative oil consumption and the accumulative mileage of entire detection time, and the fuel consumption information in unit of analysis mileage are calculated, realizes vehicle oil consumption monitoring.The present invention is by being divided into multiple periods for detection time, unreasonable fuel consumption data and mileage are smoothly filtered within each period, accumulative oil consumption and the accumulative mileage of entire detection time are calculated again, carry out the fuel consumption information in unit of analysis mileage, so that vehicle oil consumption monitoring is more rationally, accurately.
Description
Technical field
The present invention relates to a kind of vehicle oil consumption monitoring methods based on ultrasonic listening oil consumption fluctuation filtering.
Background technique
The transportation trade of modernization mainly has railway transportation, highway transportation, waterway transportation, air transportation and pipeline fortune
It is defeated, wherein highway be in order to couple between city, between rural area, between rural area and rural area and and industrial and mineral base between by
It is built according to national technical standard, authorities check and accept the road approved by road, and highway transportation is mainly with all kinds of automobiles (visitor
Vehicle, lorry etc.) based on vehicle, automobile is raw in society at essential transport facility in for people's lives
Play the role of in work very important.
And as the continuous of oil price is risen, fuel-economizing driving has become a kind of current inevitable trend, such as in Car design
When, vehicle oil consumption can be reduced by reducing vehicle body windage；Vehicle can also be reduced by improving the thermal efficiency of engine
Oil consumption；In addition, being exactly to use automobile energy-saving product there are also a kind of effective method, for now, to meet automobile energy-saving
Need: all kinds of energy-conserving products have been widely used among haulage vehicle.
However, whether being required to pass through vehicle by improving vehicle performance or the production of saving petrol being used to realize that fuel-economizing drives
Oil consumption monitoring, to realize that vehicle performance or the production of saving petrol effect provide foundation；In vehicle oil consumption monitoring process, in unit
Journey (hundred kilometers) fuel consumption information is the important indicator of oil consumption monitoring, is mainly determined by two data of accumulative mileage and accumulative oil consumption
It is fixed, but in existing accumulative mileage and accumulative oil consumption acquisition modes, generally using GPS positioning (or range sensor) directly into
Row accumulative mileage obtains；Accumulative fuel consumption information is directly acquired by the way of hydrostatic sensor or ultrasonic listening；And it obtains in this way
The accumulative mileage and accumulative oil consumption taken contains some unreasonable data, can not accurately reflect vehicle operation oil consumption feelings
Condition；For example, Fei Benche dynamic displacement generates mileage (dragged away in the case of such as vehicle stall by trailer, vehicle aboard ship situations such as),
It can not reflect the mileage information that vehicle operates normally；For another example, vehicle has instantaneous oil consumption without instantaneous mileage (vehicle long-time
Not situations such as flame-out parking), frequency of occurrence also has very big randomness, can not reflect the oil consumption letter that vehicle operates normally
Breath；If directly utilize such mileage and fuel consumption data, without being pocessed, carry out vehicle oil consumption monitoring when will be serious
Influence the reasonability and accuracy of monitoring.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide one kind based on ultrasonic listening oil consumption fluctuation filtering
Vehicle oil consumption monitoring method, by the way that detection time is divided into multiple periods, to unreasonable oil consumption number within each period
It is smoothly filtered according to mileage, then calculates accumulative oil consumption and the accumulative mileage of entire detection time, come in unit of analysis
Fuel consumption information in journey, so that vehicle oil consumption monitoring is more rationally, accurately.
The purpose of the present invention is achieved through the following technical solutions: one kind is based on ultrasonic listening oil consumption fluctuation filtering
Vehicle oil consumption monitoring method, comprising the following steps:
S1. detection time T is averagely divided into a N period, each period is t, T=Nt；
S2. in each time cycle t, location information is obtained in real time, and each fixed according to the acquisition of the real time position of positioning
The corresponding accumulative mileage of position information, the corresponding accumulative oil consumption in each location information using ultrasonic wave real-time detection vehicle；
S3. accumulative fuel consumption data unreasonable in each period t is smoothly filtered；
S4. accumulative mileage data unreasonable in each period t are smoothly filtered；
S5. according to the filtered accumulative oil consumption of each period t and accumulative mileage, the accumulative oil of entire detection time T is calculated
Consumption and accumulative mileage, and the fuel consumption information in unit of analysis mileage realize vehicle oil consumption monitoring.
Wherein, the step S3 includes following sub-step:
S31. the smooth filtering of accumulative fuel consumption data is realized according to the average value of the continuous instantaneous oil consumption in period t；It is described
Step S31 includes following sub-step: the average value AVO of continuous instantaneous oil consumption in S311. calculating cycle t；S312. judge that oil consumption is flat
Whether mean value AVO is in pre-set zone of reasonableness；If so, thinking that oil consumption average value AVO is not present in time cycle t
Great fluctuation process, return step S311 carry out the oil consumption mean value calculation of next cycle；If not, then it is assumed that oily in time cycle t
Consuming average value AVO, there are great fluctuation processes, enter step S313；S313. the continuous instantaneous oil consumption in period t is smoothly filtered,
And according to the accumulative oil consumption of each location information of smooth filtered instantaneous oil consumption calculating cycle t.
S32. the location information for being 0 with the presence or absence of accumulative oil consumption in polling cycle t；
If so, being 0 by continuous integration oil consumption below since the accumulative oil consumption of first location information in period t is 0
Accumulative oil consumption be updated to the first next data for having accumulative oil consumption；
If it is not, entering step S33；
S33. judging, which whether there is in period t, the instantaneous oil consumption but location information without instantaneous mileage；
If it exists, then accumulative oil consumption corresponding to this location information is updated, and updated accumulative oil consumption is to update
The difference of preceding accumulative oil consumption and instantaneous oil consumption.
Further, the step S311 includes:
In period t, the corresponding accumulative oil consumption of calculating any two adjacent positioned information is poor, which is two
Instantaneous oil consumption IO between a location information:
IO=Oi-Oi-1；
In formula, OiIt indicates in time cycle t, the corresponding accumulative oil consumption of i-th of location information, i=1,2,3 ..., P；Its
Middle P indicates the location information number for including in time cycle t；
The average value AVO of continuous instantaneous oil consumption in calculating cycle t:
The step S312 includes:
Judge whether oil consumption average value AVO meets AVO1≤AVO≤AVO2 condition；Wherein AVO1 indicates time cycle t
The zone of reasonableness lower limit of interior oil consumption average value；AVO2 indicates the zone of reasonableness upper limit of oil consumption average value in time cycle t；
If meeting condition, then it is assumed that in the time cycle t oil consumption average value AVO be not present great fluctuation process, return step S311,
Carry out the oil consumption mean value calculation of next cycle；
If being unsatisfactory for condition, then it is assumed that there are great fluctuation processes for oil consumption average value in time cycle t, enter step S313；
Wherein, for AVO1 and AVO2 by presetting determination, AVO1 is right using lower hundred kilometers of normal vehicle operation situation
Answer the average fuel consumption minimum value in running time；AVO2 is using under normally travel situation, and the average fuel consumption in time cycle t is most
Big value.
The step S313 includes:
According to instantaneous oil consumption IO continuous between all adjacent positioned information in step S311 calculating cycle t；
Continuous instantaneous oil consumption in period t is smoothly filtered:
If IO < AVO or IO > AVO；Smooth filtered instantaneous oil consumption are as follows:
If IO=AVO, instantaneous oil consumption is IO '=IO after smooth filtering；
In formula, TM indicates the corresponding time interval of adjacent positioned information, i.e., instantaneous oil consumption time；APO is to preset in period t
Reasonable oil consumption average value；
Further according to the accumulative oil consumption of each location information of smooth filtered instantaneous oil consumption calculating cycle t after smooth filtering.
The step S4 includes following sub-step:
S41. the accumulative mileage in calculating cycle t between any two adjacent positioned information is poor, which is
Instantaneous mileage IM between two location informations:
IM=Mi-Mi-1；
MiIt indicates in period t, the corresponding accumulative mileage of i-th of location information, i=1,2,3 ..., P；
S42. it checks in period t with the presence or absence of the location information that can not obtain real time position, in this case, instantaneous mileage
IM is 0；If it exists, the accumulative mileage of continuous no-fix data below is arranged to first next since this location information
The accumulative mileage of location data；
S43. judge that, with the presence or absence of accumulative mileage prominent the case where rising in location information, the situation, that is, IM > AP*TO+300 is public
In；The accumulative mileage of the location information is modified to the corresponding accumulative mileage of a upper location information by the situation if it exists；Its
In, AP indicates the reasonable travel speed of vehicle, and TO indicates the corresponding time interval of adjacent positioned information；
S44. the mileage of non-vehicle power generation, i.e. IO≤0 and IM >=Q are judged whether there is, wherein Q is preset instantaneous
Mileage threshold value；If it exists, the accumulative mileage of corresponding location information is updated, updated accumulative mileage is accumulative before updating
The difference of mileage and instantaneous mileage.
The step S5 includes following sub-step:
S51. according to the accumulative oil consumption of each period t and accumulative mileage, calculate accumulative oil consumption in entire detection time T and
Accumulative mileage；
S52. accumulative oil consumption and the accumulative mileage in entire detection time T are utilized, the fuel consumption data of unit of account mileage is real
The monitoring of existing vehicle oil consumption.
The beneficial effects of the present invention are: the present invention is by being divided into multiple periods for detection time, it is right within each period
Unreasonable fuel consumption data and mileage is smoothly filtered, then calculate entire detection time accumulative oil consumption and it is accumulative in
Journey carrys out the fuel consumption information in unit of analysis mileage, so that vehicle oil consumption monitoring is more rationally, accurately；Carrying out accumulative oil consumption number
It is unreasonable and have instantaneous oil consumption in unreasonable, the accumulative oil consumption of the average value of continuous instantaneous oil consumption during according to smooth filtering
But without instantaneous mileage in the case where, carried out smooth filtering respectively, accumulative fuel consumption data enabled more accurately to reflect vehicle
Operation generate fuel consumption information；During progress accumulative mileage smoothly filters, vehicle real time position can not obtained
In the case that location information, accumulative mileage be prominent to rise, non-vehicle power generates mileage, smooth filtering has been carried out respectively, so that tired
Meter mileage more accurately reflects the mileage information that vehicle power generates.
Detailed description of the invention
Fig. 1 is flow chart of the method for the present invention.
Fig. 2 is the flow chart smoothly filtered according to the average value of continuous instantaneous oil consumption to accumulative oil consumption.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing, but protection scope of the present invention is not limited to
It is as described below.
As shown in Figure 1, a kind of vehicle oil consumption monitoring method based on ultrasonic listening oil consumption fluctuation filtering, including following step
It is rapid:
S1. detection time T is averagely divided into a N period, each period is t, T=Nt；
S2. in each time cycle t, location information is obtained in real time, and each fixed according to the acquisition of the real time position of positioning
The corresponding accumulative mileage of position information, the corresponding accumulative oil consumption in each location information using ultrasonic wave real-time detection vehicle；
S3. accumulative fuel consumption data unreasonable in each period t is smoothly filtered；
S4. accumulative mileage data unreasonable in each period t are smoothly filtered；
S5. according to the filtered accumulative oil consumption of each period t and accumulative mileage, the accumulative oil of entire detection time T is calculated
Consumption and accumulative mileage, and the fuel consumption information in unit of analysis mileage realize vehicle oil consumption monitoring.
In embodiments herein, period t is 10 minutes, and the fuel consumption information in unit mileage is mark with fuel consumption per hundred kilometers
It is quasi-.
Wherein, the step S3 includes following sub-step:
S31. the smooth filtering of accumulative fuel consumption data is realized according to the average value of the continuous instantaneous oil consumption in period t；Such as Fig. 2
Shown, the step S31 includes following sub-step: the average value AVO of continuous instantaneous oil consumption in S311. calculating cycle t；S312.
Judge oil consumption average value AVO whether in pre-set zone of reasonableness；If so, thinking that oil consumption is average in time cycle t
Great fluctuation process is not present in value AVO, and return step S311 carries out the oil consumption mean value calculation of next cycle；If not, then it is assumed that this when
Between there are great fluctuation processes by oil consumption average value AVO in period t, enter step S313；S313. to the continuous instantaneous oil consumption in period t into
The smooth filtering of row, and according to the accumulative oil consumption of each location information of smooth filtered instantaneous oil consumption calculating cycle t.
S32. it is (extensive after filtering oil consumption detection device failure to whether there is the location information that accumulative oil consumption is 0 in polling cycle t
Multiple situation, when oil consumption detection device failure, it is normal oil consumption after recovery that the accumulative fuel consumption information detected, which is 0)；
If so, being 0 by continuous integration oil consumption below since the accumulative oil consumption of first location information in period t is 0
Accumulative oil consumption be updated to the first next data for having accumulative oil consumption；
If it is not, entering step S33；
S33. judging, which whether there is in period t, the instantaneous oil consumption but location information without instantaneous mileage；(vehicle stops for a long time
Vehicle does not stop working but)
If it exists, then accumulative oil consumption corresponding to this location information is updated, and updated accumulative oil consumption is to update
The difference of preceding accumulative oil consumption and instantaneous oil consumption.
Further, the step S311 includes:
In period t, the corresponding accumulative oil consumption of calculating any two adjacent positioned information is poor, which is two
Instantaneous oil consumption IO between a location information:
IO=Oi-Oi-1；
In formula, OiIt indicates in time cycle t, the corresponding accumulative oil consumption of i-th of location information, i=1,2,3 ..., P；Its
Middle P indicates the location information number for including in time cycle t；
The average value AVO of continuous instantaneous oil consumption in calculating cycle t:
The step S312 includes:
Judge whether oil consumption average value AVO meets AVO1≤AVO≤AVO2 condition；Wherein AVO1 indicates time cycle t
The zone of reasonableness lower limit of interior oil consumption average value；AVO2 indicates the zone of reasonableness upper limit of oil consumption average value in time cycle t；
If meeting condition, then it is assumed that in the time cycle t oil consumption average value AVO be not present great fluctuation process, return step S311,
Carry out the oil consumption mean value calculation of next cycle；
If being unsatisfactory for condition, then it is assumed that there are great fluctuation processes for oil consumption average value in time cycle t, enter step S313；
Wherein, for AVO1 and AVO2 by presetting determination, AVO1 is right using lower hundred kilometers of normal vehicle operation situation
Answer the average fuel consumption minimum value in running time；AVO2 is using under normally travel situation, and the average fuel consumption in time cycle t is most
Big value.
The step S313 includes:
According to instantaneous oil consumption IO continuous between all adjacent positioned information in step S311 calculating cycle t；
Continuous instantaneous oil consumption in period t is smoothly filtered:
If IO < AVO or IO > AVO；Smooth filtered instantaneous oil consumption are as follows:
If IO=AVO, instantaneous oil consumption is IO '=IO after smooth filtering；
In formula, TM indicates the corresponding time interval of adjacent positioned information, i.e., instantaneous oil consumption time；APO is to preset in period t
Reasonable oil consumption average value.
Further according to the accumulative oil consumption of each location information of smooth filtered instantaneous oil consumption calculating cycle t after smooth filtering:
Based on the accumulative oil consumption of first location information in the period, each adjacent positioned is sequentially overlapped along news according to time order and function
Instantaneous oil consumption between information is to get the corresponding accumulative oil consumption of location information each in the period to after filtering.
For example, the accumulative oil consumption of first location information is O1, between first location information and second location information
Filtered instantaneous oil consumption be IO '12, between second location information and third location information filtered instantaneous oil consumption be
IO′23；The filtered accumulative oil consumption O of second location information2'=O1+I′O12；The accumulative oil consumption O of third location information3'=
O2′+IO′23, and so on.
The step S4 includes following sub-step:
S41. the accumulative mileage in calculating cycle t between any two adjacent positioned information is poor, which is
Instantaneous mileage IM between two location informations:
IM=Mi-Mi-1；
MiIt indicates in period t, the corresponding accumulative mileage of i-th of location information, i=1,2,3 ..., P；
S42. it checks with the presence or absence of the location information that can not obtain real time position in period t, in this case, due to this Shen
The corresponding accumulative mileage of each location information is please obtained by the real time position of positioning, therefore real time position can not obtained, it is corresponding
The accumulative mileage of location information is constant, and instantaneous mileage IM is 0；It if it exists, will be continuous uncertain below since this location information
The accumulative mileage of position data is arranged to the accumulative mileage of first next location data；
S43. judge that, with the presence or absence of accumulative mileage prominent the case where rising in location information, the situation, that is, IM > AP*TO+300 is public
In；The accumulative mileage of the location information is modified to the corresponding accumulative mileage of a upper location information by the situation if it exists；Its
In, AP indicates the reasonable travel speed of vehicle, and TO indicates the corresponding time interval of adjacent positioned information；
S44. the mileage for judging whether there is the generation of non-vehicle power (is dragged away in the case of such as vehicle stall by trailer, vehicle
Situations such as aboard ship), i.e. IO≤0 and IM >=Q, wherein Q is preset instantaneous mileage threshold value, generally 10km；It if it exists, will be right
The accumulative mileage of location information is answered to be updated, updated accumulative mileage is the difference of accumulative mileage and instantaneous mileage before updating.
The step S5 includes following sub-step:
S51. according to the accumulative oil consumption of each period t and accumulative mileage, calculate accumulative oil consumption in entire detection time T and
Accumulative mileage；In a particular embodiment, add up the sum of the accumulative oil consumption that oil consumption is each period t in entire detection time T, entirely
Accumulative mileage is the sum of the accumulative mileage of each period t in detection time T；
S52. accumulative oil consumption and the accumulative mileage in entire detection time T are utilized, the fuel consumption data of unit of account mileage is (tired
Oil consumption/accumulative mileage is counted, generally using fuel consumption per hundred kilometers as standard), realize the monitoring of vehicle oil consumption.
To sum up, the present invention is by being divided into multiple periods for detection time, to unreasonable oil consumption number within each period
It is smoothly filtered according to mileage, then calculates accumulative oil consumption and the accumulative mileage of entire detection time, come in unit of analysis
Fuel consumption information in journey, so that vehicle oil consumption monitoring is more rationally, accurately；It is provided more for vehicle performance or energy-conserving product performance
Add accurate foundation.
Claims (7)
1. a kind of vehicle oil consumption monitoring method based on ultrasonic listening oil consumption fluctuation filtering, it is characterised in that: including following step
It is rapid:
S1. detection time T is averagely divided into a N period, each period is t, T=Nt；
S2. in each time cycle t, location information is obtained in real time, and each positioning is obtained according to the real time position of positioning and is believed
Corresponding accumulative mileage is ceased, the corresponding accumulative oil consumption in each location information using ultrasonic wave real-time detection vehicle；
S3. accumulative fuel consumption data unreasonable in each period t is smoothly filtered；
S4. accumulative mileage data unreasonable in each period t are smoothly filtered；
The step S4 includes following sub-step:
S41. the accumulative mileage in calculating cycle t between any two adjacent positioned information is poor, which is two
Instantaneous mileage IM between location information:
IM=Mi-Mi-1；
MiIt indicates in period t, the corresponding accumulative mileage of i-th of location information, i=1,2,3 ..., P；
S42. check that in this case, instantaneous mileage IM is with the presence or absence of the location information that can not obtain real time position in period t
0；If it exists, the accumulative mileage of continuous no-fix data below is arranged to first next since this location information to have determined
The accumulative mileage of position data；
S43. judge in location information with the presence or absence of accumulative mileage prominent the case where rising, the situation, that is, AP*TO+300 kilometers of IM >；If
There are the situations, and the accumulative mileage of the location information is modified to the corresponding accumulative mileage of a upper location information；Wherein, AP table
Show the reasonable travel speed of vehicle, TO indicates the corresponding time interval of adjacent positioned information；
S44. the mileage of non-vehicle power generation, i.e. IO≤0 and IM >=Q are judged whether there is, wherein Q is preset instantaneous mileage
Threshold value；If it exists, the accumulative mileage of corresponding location information is updated, updated accumulative mileage is accumulative mileage before updating
And the difference of instantaneous mileage；
S5. according to the filtered accumulative oil consumption of each period t and accumulative mileage, calculate entire detection time T accumulative oil consumption and
Accumulative mileage, and the fuel consumption information in unit of analysis mileage realize vehicle oil consumption monitoring.
2. a kind of vehicle oil consumption monitoring method based on ultrasonic listening oil consumption fluctuation filtering according to claim 1,
Be characterized in that: the step S3 includes following sub-step:
S31. the smooth filtering of accumulative fuel consumption data is realized according to the average value of the continuous instantaneous oil consumption in period t；
S32. the location information for being 0 with the presence or absence of accumulative oil consumption in polling cycle t；
If so, since the accumulative oil consumption of first location information in period t be 0 start, by continuous integration oil consumption below be 0 tire out
Meter oil consumption is updated to the first next data for having accumulative oil consumption；
If it is not, entering step S33；
S33. judging, which whether there is in period t, the instantaneous oil consumption but location information without instantaneous mileage；
If it exists, then accumulative oil consumption corresponding to this location information is updated, and updated accumulative oil consumption is before updating
The difference of accumulative oil consumption and instantaneous oil consumption.
3. a kind of vehicle oil consumption monitoring method based on ultrasonic listening oil consumption fluctuation filtering according to claim 2,
Be characterized in that: the step S31 includes following sub-step:
S311. in calculating cycle t continuous instantaneous oil consumption average value AVO；
S312. judge oil consumption average value AVO whether in pre-set zone of reasonableness；
If so, thinking that great fluctuation process is not present in oil consumption average value AVO in time cycle t, return step S311 is carried out next
The oil consumption mean value calculation in period；
If not, then it is assumed that there are great fluctuation processes by oil consumption average value AVO in time cycle t, enter step S313；
S313. the continuous instantaneous oil consumption in period t is smoothly filtered, and week is calculated according to smooth filtered instantaneous oil consumption
The accumulative oil consumption of each location information of phase t.
4. a kind of vehicle oil consumption monitoring method based on ultrasonic listening oil consumption fluctuation filtering according to claim 3,
Be characterized in that: the step S311 includes:
In period t, the corresponding accumulative oil consumption of calculating any two adjacent positioned information is poor, which is two fixed
Instantaneous oil consumption IO between the information of position:
IO=Oi-Oi-1；
In formula, OiIt indicates in time cycle t, the corresponding accumulative oil consumption of i-th of location information, i=1,2,3 ..., P；Wherein P table
Show the location information number for including in time cycle t；
The average value AVO of continuous instantaneous oil consumption in calculating cycle t:
5. a kind of vehicle oil consumption monitoring method based on ultrasonic listening oil consumption fluctuation filtering according to claim 3,
Be characterized in that: the step S312 includes:
Judge whether oil consumption average value AVO meets AVO1≤AVO≤AVO2 condition；Wherein AVO1 indicates oil in time cycle t
Consume the zone of reasonableness lower limit of average value；AVO2 indicates the zone of reasonableness upper limit of oil consumption average value in time cycle t；
If meeting condition, then it is assumed that great fluctuation process is not present in oil consumption average value AVO in time cycle t, and return step S311 is carried out
The oil consumption mean value calculation of next cycle；
If being unsatisfactory for condition, then it is assumed that there are great fluctuation processes for oil consumption average value in time cycle t, enter step S313；
Wherein, for AVO1 and AVO2 by presetting determination, AVO1 uses lower hundred kilometers of normal vehicle operation situation corresponding rows
Sail the average fuel consumption minimum value in the time；For AVO2 using under normally travel situation, the average fuel consumption in time cycle t is maximum
Value.
6. a kind of vehicle oil consumption monitoring method based on ultrasonic listening oil consumption fluctuation filtering according to claim 3,
Be characterized in that: the step S313 includes:
According to instantaneous oil consumption IO continuous between all adjacent positioned information in step S311 calculating cycle t；
Continuous instantaneous oil consumption in period t is smoothly filtered:
If IO < AVO or IO > AVO；Smooth filtered instantaneous oil consumption are as follows:
If IO=AVO, instantaneous oil consumption is IO '=IO after smooth filtering；
In formula, TM indicates the corresponding time interval of adjacent positioned information, i.e., instantaneous oil consumption time；APO is preset conjunction in period t
Manage oil consumption average value；
Further according to the accumulative oil consumption of each location information of smooth filtered instantaneous oil consumption calculating cycle t after smooth filtering.
7. a kind of vehicle oil consumption monitoring method based on ultrasonic listening oil consumption fluctuation filtering according to claim 1,
Be characterized in that: the step S5 includes following sub-step:
S51. it according to the accumulative oil consumption of each period t and accumulative mileage, calculates the accumulative oil consumption in entire detection time T and adds up
Mileage；
S52. accumulative oil consumption and the accumulative mileage in entire detection time T are utilized, the fuel consumption data of unit of account mileage realizes vehicle
The monitoring of oil consumption.
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| CN202793487U (en) * | 2012-07-13 | 2013-03-13 | 四川奥格科技有限公司 | Automobile fuel consumption monitor |
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