CN110057596B - Heavy truck fuel economy analysis method and device - Google Patents
Heavy truck fuel economy analysis method and device Download PDFInfo
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- CN110057596B CN110057596B CN201910379476.3A CN201910379476A CN110057596B CN 110057596 B CN110057596 B CN 110057596B CN 201910379476 A CN201910379476 A CN 201910379476A CN 110057596 B CN110057596 B CN 110057596B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F9/00—Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine
- G01F9/02—Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine wherein the other variable is the speed of a vehicle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/042—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12
- G01M15/046—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12 by monitoring revolutions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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Abstract
The invention discloses a method and a device for analyzing fuel economy of a heavy truck. The method counts the running time of heavy trucks with different speed ratios in a corresponding high gear state, wherein the high gear state is jointly determined by an s/v interval and a v range; abandoning the traditional economic rotating speed definition, carrying out statistical analysis on the optimal rotating speed range in a laboratory aiming at different vehicle types, acquiring data of the speed v and the weight of the heavy truck in a continuous time period, selecting the weight of the heavy truck at the moment of the highest speed v in the continuous time period as the weight of the heavy truck in the continuous time period, and accumulating the driving mileage of the heavy truck under the weight; and finally, calculating the actual urea consumption of the heavy truck according to the preset urea tank volume and urea liquid level data of the heavy truck, comprehensively analyzing the fuel economy of the heavy truck, deducing the factor of high fuel consumption of the heavy truck from multiple dimensions, and accurately providing theoretical basis and data support for saving fuel consumption cost and standardizing the driving behavior of a driver in the logistics industry.
Description
Technical Field
The application relates to the technical field of Internet of vehicles, in particular to a method and a device for analyzing fuel economy of a heavy truck.
Background
Fuel consumption problem for heavy trucks the owner is most concerned because it involves high and low costs for personal or business operations. The method and the device can accurately analyze the main factors causing high oil consumption of the heavy truck, help to improve the driving habit of a vehicle owner, provide data support for timely maintaining and repairing the vehicle, and are beneficial to reducing the oil consumption.
The current basic market generally analyzes the influence on the fuel consumption of heavy trucks from the aspects of high gears, economic rotating speed intervals, reference weight and volume of a urea box. The high gear is determined by the ratio of the rotating speed to the speed and the speed, and the actual economic rotating speed intervals of vehicles with different configurations are different. Heavy trucks have a significant impact on the reference weight when the vehicle bumps. And the difficulty of accurately calculating the urea consumption is higher due to the irregular shape of the urea box body of the heavy truck.
However, in the analysis of the current analysis means, the calculation of the factors is not processed according to different configured vehicles, only a rough value is output, and the deviation is often large and has no practical reference significance.
Disclosure of Invention
The application provides a method and a device for analyzing fuel economy of a heavy truck, which aim to solve the problem that the value deviation output by the existing analysis method is often large.
In a first aspect, the present invention provides a method for analyzing fuel economy of a heavy truck, the method comprising:
acquiring data of the engine speed s and the speed v of heavy trucks with different speed ratios;
counting the running time of the heavy trucks with different speed ratios in a corresponding high gear state according to the data of the engine speed s and the speed v, wherein the high gear state is determined by the interval of s/v and the range of v;
acquiring oil consumption data of heavy trucks with different speed ratios at different engine rotating speeds;
classifying the rotation speed of an instrument panel engine of the heavy truck according to the oil consumption data, and defining a region lower than an economic rotation speed, an economic rotation speed region, a super-economic rotation speed region and a super-rotation speed region;
acquiring data of the speed v and the weight of the heavy truck in continuous time periods;
selecting the weight of the heavy truck at the moment of maximum speed v in the continuous period of time as the weight of the heavy truck in the continuous period of time;
accumulating the mileage of the heavy truck under the weight;
acquiring urea level data of the heavy truck;
calculating the actual urea consumption of the heavy truck according to the preset urea tank volume and the urea liquid level data of the heavy truck;
and comprehensively analyzing the fuel economy of the heavy truck according to the running time of the heavy truck with different speed ratios in the corresponding high gear state, the economic rotating speed area, the weight of each section of running mileage and the actual urea consumption of the heavy truck.
With reference to the first aspect, in a first achievable form of the first aspect, the different speed ratio heavy trucks include heavy trucks with speed ratios of 2.64, 2.79, and 2.85, respectively;
the high-gear state of the heavy truck with the speed ratio of 2.64 is that s/v is less than 13.85, and v is more than or equal to 70 km/h;
the high-gear state of the heavy truck with the speed ratio of 2.79 is that s/v is less than 14.7, and v is more than or equal to 65 km/h;
the high-gear state of the heavy truck with the speed ratio of 2.85 is that s/v is less than 15, and v is more than or equal to 64 km/h.
With reference to the first implementable manner of the first aspect, in a second implementable manner of the first aspect, the step of counting a duration of time that the heavy truck with the different speed ratios travels in the corresponding high gear state according to the data of the engine speed s and the speed v further includes:
counting the running time of the heavy trucks with different speed ratios in the corresponding high-gear low-speed state;
the high-grade low-speed state of the heavy truck with the speed ratio of 2.64 is that s/v is less than 16.8, and v is 65-77 km/h;
the high-grade low-speed state of the heavy truck with the speed ratio of 2.79 is that s/v is less than 17.8, and v is 63-72.8 km/h;
the high-gear low-speed state of the heavy truck with the speed ratio of 2.85 is that s/v is less than 18.1, and v is 60-71.2 km/h.
With reference to the first aspect, in a third implementable manner of the first aspect, the calculating an actual urea consumption of the heavy truck from a preset urea tank volume and the urea level data of the heavy truck comprises:
selecting a specific time period, and inquiring urea liquid level data in the time period, wherein the urea liquid level data is expressed as the volume ratio of a urea box;
sorting the urea liquid level data in the time period according to a time sequence, and after all the urea liquid level data with 0 are removed, sequentially recording the rest urea liquid level data as D1, D2, D3.. Dk and Dk +1 … Dn, wherein D1 is recorded as a first starting point, and k is a positive integer;
sequentially judging whether Dk +1-Dk is more than 10%;
if Dk +1-Dk > 10%, then Dk is taken as the first end point;
comparing the Dk +1 and DK + 2;
when Dk +1 is larger than DK +2, judging whether DK +1-DK +2 is smaller than 2%;
if DK +1-DK +2 is less than 2%, then Dk +1 is taken as a second starting point;
if DK +1-DK +2 is more than or equal to 2%, then Dk +2 is taken as a second starting point;
when DK +1 is DK +2, DK +2 is taken as the second starting point;
when DK +1< DK +2, Dk +1 is taken as a second starting point or Dk +2 is taken as a second starting point, adding 1 to k and judging whether the obtained value is n;
if the obtained value is n, Dn is the last end point;
subtracting each end point from the starting point, and then accumulating to obtain the urea consumption of the heavy truck in the time period;
if the value obtained is not n, the next set of decisions continues to determine if DK +1-DK > 10% until the last endpoint is obtained.
In a second aspect, the present invention provides a heavy truck fuel economy analysis apparatus, the apparatus comprising:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring data of engine speed s and speed v of heavy trucks with different speed ratios;
the statistical unit is used for counting the running time of the heavy trucks with different speed ratios in a corresponding high gear state according to the data of the engine speed s and the speed v, and the high gear state is jointly determined by an s/v interval and a v range;
the acquisition unit is also used for acquiring oil consumption data of heavy trucks with different speed ratios at different engine rotating speeds;
the defining unit is used for classifying the rotation speed of an instrument panel engine of the heavy truck according to the oil consumption data and defining a region lower than an economic rotation speed, a region of the super-economic rotation speed and a region of the super-rotation speed;
the acquisition unit is also used for acquiring data of the speed v and the weight of the heavy truck in continuous time periods;
a selection unit for selecting the weight at the moment of highest speed v in said consecutive time period as the weight of the heavy truck in said consecutive time period;
the accumulation unit is used for accumulating the driving mileage of the heavy truck under the weight;
the acquisition unit is further used for acquiring urea liquid level data of the heavy truck;
the calculation unit is used for calculating the actual urea consumption of the heavy truck according to the preset urea tank volume and the urea liquid level data of the heavy truck;
and the analysis unit is used for comprehensively analyzing the fuel economy of the heavy truck according to the running time of the heavy truck with different speed ratios in the corresponding high gear state, the economic rotating speed area, the weight of each section of running mileage and the actual urea consumption of the heavy truck.
With reference to the second aspect, in a first enablement of the second aspect, the heavy trucks of different speed ratios include heavy trucks with speed ratios of 2.64, 2.79, and 2.85, respectively;
the high-gear state of the heavy truck with the speed ratio of 2.64 is that s/v is less than 13.85, and v is more than or equal to 70 km/h;
the high-gear state of the heavy truck with the speed ratio of 2.79 is that s/v is less than 14.7, and v is more than or equal to 65 km/h;
the high-gear state of the heavy truck with the speed ratio of 2.85 is that s/v is less than 15, and v is more than or equal to 64 km/h.
With reference to the first implementable manner of the second aspect, in a second implementable manner of the second aspect, the statistics unit is further configured to:
counting the running time of the heavy trucks with different speed ratios in the corresponding high-gear low-speed state;
the high-grade low-speed state of the heavy truck with the speed ratio of 2.64 is that s/v is less than 16.8, and v is 65-77 km/h;
the high-grade low-speed state of the heavy truck with the speed ratio of 2.79 is that s/v is less than 17.8, and v is 63-72.8 km/h;
the high-gear low-speed state of the heavy truck with the speed ratio of 2.85 is that s/v is less than 18.1, and v is 60-71.2 km/h.
With reference to the second aspect, in a third implementable manner of the second aspect, the computing unit is configured to:
selecting a specific time period, and inquiring urea liquid level data in the time period, wherein the urea liquid level data is expressed as the volume ratio of a urea box;
sorting the urea liquid level data in the time period according to a time sequence, and after all the urea liquid level data with 0 are removed, sequentially recording the rest urea liquid level data as D1, D2, D3.. Dk and Dk +1 … Dn, wherein D1 is recorded as a first starting point, and k is a positive integer;
sequentially judging whether Dk +1-Dk is more than 10%;
if Dk +1-Dk > 10%, then Dk is taken as the first end point;
comparing the Dk +1 and DK + 2;
when Dk +1 is larger than DK +2, judging whether DK +1-DK + 2 is smaller than 2%;
if DK +1-DK + 2 is less than 2%, then Dk +1 is taken as a second starting point;
if DK +1-DK + 2 is more than or equal to 2%, then Dk +2 is taken as a second starting point;
when DK +1 is DK +2, DK +2 is taken as the second starting point;
when DK +1< DK +2, Dk +1 is taken as a second starting point or Dk +2 is taken as a second starting point, adding 1 to k and judging whether the obtained value is n;
if the obtained value is n, Dn is the last end point;
subtracting each end point from the starting point, and then accumulating to obtain the urea consumption of the heavy truck in the time period;
if the value obtained is not n, the next set of decisions continues to determine if DK +1-DK > 10% until the last endpoint is obtained.
According to the technical scheme, the method and the device for analyzing the fuel economy of the heavy truck provided by the invention have the advantages that the data of the engine speed s and the speed v of the heavy trucks with different speed ratios are obtained, and then the running time of the heavy trucks with different speed ratios in the corresponding high-gear state is counted according to the data of the engine speed s and the speed v, wherein the high-gear state is jointly determined by the interval of s/v and the range of v; the method comprises the steps that fuel consumption data of heavy trucks with different speed ratios at different engine rotating speeds are obtained, the rotating speeds of instrument panel engines of the heavy trucks are classified according to the fuel consumption data, and a region lower than the economic rotating speed, an economic rotating speed region, a super-economic rotating speed region and a super-rotating speed region are defined; acquiring data of speed v and weight of the heavy truck in continuous time periods, selecting the weight at the moment of the highest speed v in the continuous time periods as the weight of the heavy truck in the continuous time periods, and accumulating the driving mileage of the heavy truck under the weight; and finally, urea liquid level data of the heavy truck are obtained, and actual urea consumption of the heavy truck is calculated according to the preset urea tank volume and urea liquid level data of the heavy truck, so that the fuel economy of the heavy truck is comprehensively analyzed according to the running time length, the economic rotating speed area, the weight of each section of running mileage of the heavy truck with different speed ratios in a corresponding high-grade state and the actual urea consumption of the heavy truck.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any inventive exercise.
FIG. 1 is a flow chart of a method for analyzing fuel economy of a heavy truck according to an embodiment of the present application.
FIG. 2 is a flowchart of step S109 of a method for analyzing fuel economy of a heavy truck according to an embodiment of the present application.
Fig. 3 is a block diagram of a fuel economy analyzing apparatus for a heavy truck according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a flowchart of a method for analyzing fuel economy of a heavy truck according to an embodiment of the present application, where an execution subject of the method may be a fuel economy analysis server of the heavy truck, and the method includes:
and step S101, acquiring data of the engine speed S and the speed v of the heavy truck with different speed ratios.
And S102, counting the running time of the heavy trucks with different speed ratios in the corresponding high gear state according to the data of the engine speed S and the speed v, and analyzing the oil consumption. The high-gear state is determined by the interval of s/v and the range of v.
And counting high gear intervals corresponding to vehicles with different speed ratios by analyzing a large amount of real vehicle can data. In this embodiment, the heavy trucks with different speed ratios may include heavy trucks with speed ratios of 2.64, 2.79, and 2.85, respectively. Wherein, the high-gear state of the heavy truck with the speed ratio of 2.64 is that s/v is less than 13.85, and v is more than or equal to 70 km/h. The high-gear state of the heavy truck with the speed ratio of 2.79 is that s/v is less than 14.7, and v is more than or equal to 65 km/h. The high-gear state of the heavy truck with the speed ratio of 2.85 is that s/v is less than 15, and v is more than or equal to 64 km/h. The longer the high gear state is, the lower the fuel consumption is.
In an alternative embodiment, the step of counting the time period of the heavy truck with different speed ratios driving in the corresponding high gear state according to the data of the engine speed s and the speed v may further comprise:
and counting the running time of the heavy truck with different speed ratios in the corresponding high-gear low-speed state. The high-gear low-speed state of the heavy truck with the speed ratio of 2.64 is s/v < 16.8, and v is 65-77 km/h. The high-gear low-speed state of the heavy truck with the speed ratio of 2.79 is that s/v is less than 17.8, and v is 63-72.8 km/h. The high-gear low-speed state of the heavy truck with the speed ratio of 2.85 is that s/v is less than 18.1, and v is 60-71.2 km/h. The longer the high gear low speed duration, the higher the fuel consumption.
And step S103, acquiring oil consumption data of heavy trucks with different speed ratios at different engine rotating speeds.
And step S104, classifying the rotation speed of the instrument panel engine of the heavy truck according to the oil consumption data, and defining a region lower than an economic rotation speed, a region of the super-economic rotation speed and a region of the super-rotation speed. The invention abandons the traditional economic rotation speed definition, and for different vehicle types, the laboratory statistically analyzes the optimal rotation speed range for oil consumption analysis.
Step S105, data of the speed v and the weight of the heavy truck for successive periods of time are acquired.
Step S106, selecting the weight of the heavy truck at the moment of the highest speed v in the continuous time period as the weight of the heavy truck in the continuous time period.
And S107, accumulating the driving mileage of the heavy truck under the weight, and analyzing the oil consumption.
And S108, acquiring urea liquid level data of the heavy truck.
Specifically, the urine liquid level message obtained from the vehicle can line is analyzed, and the data are transmitted to the fuel economy analysis server of the heavy truck through the GPRS.
And step S109, calculating the actual urea consumption of the heavy truck according to the preset urea tank volume and the urea liquid level data of the heavy truck, and analyzing the fuel consumption.
Referring to fig. 2, calculating the actual urea consumption of the heavy truck according to the preset urea tank volume and the urea liquid level data of the heavy truck may specifically include:
step S201, selecting a specific time period, and inquiring urea liquid level data in the time period, wherein the urea liquid level data is expressed as the volume ratio of a urea box.
Step S202, the urea liquid level data in the time period are sorted according to the time sequence, and after all the urea liquid level data with 0 are removed, the rest urea liquid level data are sequentially recorded as D1, D2, D3.. Dk and Dk +1 … Dn, wherein D1 is recorded as a first starting point, and k is a positive integer.
Step S203, whether Dk +1-Dk > 10% is judged in sequence.
In step S204, if Dk +1-Dk > 10%, Dk is the first end point.
Step S205, comparing Dk +1 and DK + 2.
And S206, judging whether Dk +1-DK + 2 is less than 2% or not when Dk +1 is greater than DK + 2.
And S207, if the DK +1-DK + 2 is less than 2%, taking the Dk +1 as a second starting point.
And S208, if the DK +1-DK + 2 is more than or equal to 2 percent, taking the Dk +2 as a second starting point. When DK +1 is DK +2, DK +2 serves as the second starting point.
In step S209, when DK +1< DK +2, DK +1 is the second starting point or DK +2 is the second starting point, k is added to 1, and step S210 determines whether the obtained value is n.
In step S211, if the obtained value is n, Dn is the last end point.
And S212, subtracting the starting point from each end point, and then accumulating to obtain the urea consumption of the heavy truck in the time period.
If the obtained value is not n, the process goes to step S203, and the next group is continued to determine whether DK +1-DK > 10% until the last end point is obtained.
Step S110, comprehensively analyzing the fuel economy of the heavy truck according to the driving time length of the heavy truck with different speed ratios in the corresponding high gear state, the economic rotating speed area, the weight of each section of driving mileage and the actual urea consumption of the heavy truck.
According to the embodiment, the method for analyzing the fuel economy of the heavy truck provided by the invention can be used for deducing the factor of high fuel consumption of the heavy truck from multiple dimensions, and accurately providing theoretical basis and data support for saving fuel consumption cost and standardizing the driving behavior of a driver in the logistics industry.
Referring to fig. 3, a schematic structural diagram of a fuel economy analyzing apparatus for a heavy truck according to the present invention is shown, the apparatus includes:
the acquiring unit 301 is used for acquiring data of the engine speed s and the speed v of the heavy truck with different speed ratios.
And a counting unit 302, configured to count, according to the data of the engine speed s and the speed v, a driving time duration of the heavy trucks with different speed ratios in a corresponding high gear state, where the high gear state is determined by an interval of s/v and a range of v.
The obtaining unit 301 is further configured to obtain oil consumption data of heavy trucks with different speed ratios at different engine rotation speeds.
And the defining unit 303 is used for classifying the rotation speed of the instrument panel engine of the heavy truck according to the oil consumption data, and defining a region lower than the economic rotation speed, a region of the super-economic rotation speed and a region of the super-rotation speed.
The acquiring unit 301 is further configured to acquire data of the speed v and the weight of the heavy truck in consecutive time periods.
A selecting unit 304 for selecting the weight at the moment of highest speed v in said consecutive period of time as the weight of the heavy truck in said consecutive period of time.
An accumulation unit 305 for accumulating the mileage of the heavy truck under the weight.
The obtaining unit 301 is further configured to obtain urea level data of the heavy truck.
A calculating unit 306, configured to calculate an actual urea consumption of the heavy truck according to a preset urea tank volume and the urea liquid level data of the heavy truck.
And the analysis unit 307 is configured to comprehensively analyze the fuel economy of the heavy truck according to the driving time of the heavy truck with the different speed ratios in the corresponding high gear state, the economic rotation speed region, the weight of each driving range, and the actual urea consumption of the heavy truck.
In the present embodiment, the heavy trucks with different speed ratios include heavy trucks with speed ratios of 2.64, 2.79, and 2.85, respectively. Wherein, the high-gear state of the heavy truck with the speed ratio of 2.64 is that s/v is less than 13.85, and v is more than or equal to 70 km/h. The high-gear state of the heavy truck with the speed ratio of 2.79 is that s/v is less than 14.7, and v is more than or equal to 65 km/h. The high-gear state of the heavy truck with the speed ratio of 2.85 is that s/v is less than 15, and v is more than or equal to 64 km/h.
Further, the statistic unit 302 is further configured to: and counting the running time of the heavy truck with different speed ratios in the corresponding high-gear low-speed state. The high-gear low-speed state of the heavy truck with the speed ratio of 2.64 is s/v less than 16.8, and v is 65-77 km/h. The high-gear low-speed state of the heavy truck with the speed ratio of 2.79 is that s/v is less than 17.8, and v is 63-72.8 km/h. The high-gear low-speed state of the heavy truck with the speed ratio of 2.85 is that s/v is less than 18.1, and v is 60-71.2 km/h.
Further, the calculating unit 306 is further configured to: selecting a specific time period, and inquiring urea liquid level data in the time period, wherein the urea liquid level data is expressed as the volume ratio of the urea box. And sequencing the urea liquid level data in the time period according to the time sequence, and after all the urea liquid level data with 0 are removed, sequentially recording the rest urea liquid level data as D1, D2, D3.. Dk and Dk +1 … Dn, wherein D1 is recorded as a first starting point, and k is a positive integer. And sequentially judging whether Dk +1-Dk is more than 10%. If Dk +1-Dk > 10%, Dk is taken as the first end point. The magnitudes of Dk +1 and Dk +2 are compared. When Dk +1 is greater than DK +2, judging whether DK +1-DK + 2 is less than 2%. If DK +1-DK + 2 is less than 2%, Dk +1 is used as the second starting point. If DK +1-DK + 2 is more than or equal to 2%, Dk +2 is taken as a second starting point. When DK +1 is DK +2, DK +2 serves as the second starting point. When DK +1< DK +2, Dk +1 is the second starting point or Dk +2 is the second starting point, the value obtained by adding 1 to k is judged whether to be n. If the resulting value is n, Dn is the last end point. Subtracting each end point from the start point and then adding up to obtain the urea consumption of the heavy truck during the time period. If the value obtained is not n, the next set of decisions continues to determine if DK +1-DK > 10% until the last endpoint is obtained.
An embodiment of the present application further provides an electronic device, which includes a memory and a processor. The memory is used for storing program instructions, and the processor is used for calling and executing the program instructions in the memory so as to realize the fuel economy analysis method of the heavy truck provided by the above method embodiment.
Embodiments of the present invention further provide a storage medium, in which a computer program is stored, and the computer program, when executed by a processor, implements some or all of the steps in the embodiments of the method for analyzing fuel economy of a heavy truck provided by the present invention. The storage medium may be a magnetic disk, an optical disk, a Read-only memory (ROM) or a Random Access Memory (RAM).
Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented as software plus a required general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments.
The same and similar parts in the various embodiments in this specification may be referred to each other. In particular, for the embodiment of the fuel economy analyzing device of the heavy truck, since the embodiment is basically similar to the embodiment of the method, the description is simple, and relevant points can be referred to the description in the embodiment of the method.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention.
Claims (6)
1. A method for analyzing fuel economy of a heavy truck, the method comprising:
acquiring data of the engine speed s and the speed v of heavy trucks with different speed ratios;
counting the running time of the heavy trucks with different speed ratios in a corresponding high gear state according to the data of the engine speed s and the speed v, wherein the high gear state is determined by the interval of s/v and the range of v;
acquiring oil consumption data of heavy trucks with different speed ratios at different engine rotating speeds;
classifying the rotation speed of an instrument panel engine of the heavy truck according to the oil consumption data, and defining a region lower than an economic rotation speed, an economic rotation speed region, a super-economic rotation speed region and a super-rotation speed region;
acquiring data of the speed v and the weight of the heavy truck in continuous time periods;
selecting the weight of the heavy truck at the moment of maximum speed v in the continuous period of time as the weight of the heavy truck in the continuous period of time;
accumulating the mileage of the heavy truck under the weight;
acquiring urea level data of the heavy truck;
calculating the actual urea consumption of the heavy truck according to the preset urea tank volume and the urea liquid level data of the heavy truck;
comprehensively analyzing the fuel economy of the heavy truck according to the running time length of the heavy truck with different speed ratios in the corresponding high gear state, the economic rotating speed area, the weight of each section of running mileage and the actual urea consumption of the heavy truck;
calculating the actual urea consumption of the heavy truck according to the preset urea tank volume and the urea liquid level data of the heavy truck comprises:
selecting a specific time period, and inquiring urea liquid level data in the time period, wherein the urea liquid level data is expressed as the volume ratio of a urea box;
sorting the urea liquid level data in the time period according to a time sequence, and after all the urea liquid level data with 0 are removed, sequentially recording the rest urea liquid level data as D1, D2, D3.. Dk and Dk +1 … Dn, wherein D1 is recorded as a first starting point, and k is a positive integer;
sequentially judging whether Dk +1-Dk is more than 10%;
if Dk +1-Dk > 10%, then Dk is taken as the first end point;
comparing the Dk +1 and DK + 2;
when Dk +1 is larger than DK +2, judging whether DK +1-DK +2 is smaller than 2%;
if DK +1-DK +2 is less than 2%, then Dk +1 is taken as a second starting point;
if DK +1-DK +2 is more than or equal to 2%, then Dk +2 is taken as a second starting point;
when DK +1 is DK +2, DK +2 is taken as the second starting point;
when DK +1< DK +2, Dk +1 is taken as a second starting point or Dk +2 is taken as a second starting point, adding 1 to k and judging whether the obtained value is n;
if the obtained value is n, Dn is the last end point;
subtracting each end point from the starting point, and then accumulating to obtain the urea consumption of the heavy truck in the time period;
if the value obtained is not n, the next set of decisions continues to determine if DK +1-DK > 10% until the last endpoint is obtained.
2. The method of claim 1, wherein the heavy trucks of different speed ratios include heavy trucks having speed ratios of 2.64, 2.79, and 2.85, respectively;
the high-gear state of the heavy truck with the speed ratio of 2.64 is that s/v is less than 13.85, and v is more than or equal to 70 km/h;
the high-gear state of the heavy truck with the speed ratio of 2.79 is that s/v is less than 14.7, and v is more than or equal to 65 km/h;
the high-gear state of the heavy truck with the speed ratio of 2.85 is that s/v is less than 15, and v is more than or equal to 64 km/h.
3. The method of claim 2, wherein the step of counting the length of time that the different speed ratio heavy duty truck is traveling in the corresponding high gear state based on the data of engine speed s and speed v further comprises:
counting the running time of the heavy trucks with different speed ratios in the corresponding high-gear low-speed state;
the high-grade low-speed state of the heavy truck with the speed ratio of 2.64 is that s/v is less than 16.8, and v is 65-77 km/h;
the high-grade low-speed state of the heavy truck with the speed ratio of 2.79 is that s/v is less than 17.8, and v is 63-72.8 km/h;
the high-gear low-speed state of the heavy truck with the speed ratio of 2.85 is that s/v is less than 18.1, and v is 60-71.2 km/h.
4. A heavy truck fuel economy analysis apparatus, comprising:
the system comprises an acquisition unit, a control unit and a control unit, wherein the acquisition unit is used for acquiring data of engine speed s and speed v of heavy trucks with different speed ratios;
the statistical unit is used for counting the running time of the heavy trucks with different speed ratios in a corresponding high gear state according to the data of the engine speed s and the speed v, and the high gear state is jointly determined by an s/v interval and a v range;
the acquisition unit is also used for acquiring oil consumption data of heavy trucks with different speed ratios at different engine rotating speeds;
the defining unit is used for classifying the rotation speed of an instrument panel engine of the heavy truck according to the oil consumption data and defining a region lower than an economic rotation speed, a region of the super-economic rotation speed and a region of the super-rotation speed;
the acquisition unit is also used for acquiring data of the speed v and the weight of the heavy truck in continuous time periods;
a selection unit for selecting the weight at the moment of highest speed v in said consecutive time period as the weight of the heavy truck in said consecutive time period;
the accumulation unit is used for accumulating the driving mileage of the heavy truck under the weight;
the acquisition unit is further used for acquiring urea liquid level data of the heavy truck;
the calculation unit is used for calculating the actual urea consumption of the heavy truck according to the preset urea tank volume and the urea liquid level data of the heavy truck;
the analysis unit is used for comprehensively analyzing the fuel economy of the heavy truck according to the running time of the heavy truck with different speed ratios in a corresponding high gear state, the economic rotating speed area, the weight of each section of running mileage and the actual urea consumption of the heavy truck;
the computing unit is configured to:
selecting a specific time period, and inquiring urea liquid level data in the time period, wherein the urea liquid level data is expressed as the volume ratio of a urea box;
sorting the urea liquid level data in the time period according to a time sequence, and after all the urea liquid level data with 0 are removed, sequentially recording the rest urea liquid level data as D1, D2, D3.. Dk and Dk +1 … Dn, wherein D1 is recorded as a first starting point, and k is a positive integer;
sequentially judging whether Dk +1-Dk is more than 10%;
if Dk +1-Dk > 10%, then Dk is taken as the first end point;
comparing the Dk +1 and DK + 2;
when Dk +1 is larger than DK +2, judging whether DK +1-DK +2 is smaller than 2%;
if DK +1-DK +2 is less than 2%, then Dk +1 is taken as a second starting point;
if DK +1-DK +2 is more than or equal to 2%, then Dk +2 is taken as a second starting point;
when DK +1 is DK +2, DK +2 is taken as the second starting point;
when DK +1< DK +2, Dk +1 is taken as a second starting point or Dk +2 is taken as a second starting point, adding 1 to k and judging whether the obtained value is n;
if the obtained value is n, Dn is the last end point;
subtracting each end point from the starting point, and then accumulating to obtain the urea consumption of the heavy truck in the time period;
if the value obtained is not n, the next set of decisions continues to determine if DK +1-DK > 10% until the last endpoint is obtained.
5. The apparatus of claim 4, wherein the heavy trucks of different speed ratios include heavy trucks having speed ratios of 2.64, 2.79, and 2.85, respectively;
the high-gear state of the heavy truck with the speed ratio of 2.64 is that s/v is less than 13.85, and v is more than or equal to 70 km/h;
the high-gear state of the heavy truck with the speed ratio of 2.79 is that s/v is less than 14.7, and v is more than or equal to 65 km/h;
the high-gear state of the heavy truck with the speed ratio of 2.85 is that s/v is less than 15, and v is more than or equal to 64 km/h.
6. The apparatus of claim 5, wherein the statistics unit is further to:
counting the running time of the heavy trucks with different speed ratios in the corresponding high-gear low-speed state;
the high-grade low-speed state of the heavy truck with the speed ratio of 2.64 is that s/v is less than 16.8, and v is 65-77 km/h;
the high-grade low-speed state of the heavy truck with the speed ratio of 2.79 is that s/v is less than 17.8, and v is 63-72.8 km/h;
the high-gear low-speed state of the heavy truck with the speed ratio of 2.85 is that s/v is less than 18.1, and v is 60-71.2 km/h.
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| CN111121910B (en) * | 2019-12-31 | 2021-07-09 | 潍坊内燃机质量检验中心有限公司 | Method and device for detecting urea consumption deviation, storage medium and electronic equipment |
| CN111894712B (en) * | 2020-05-28 | 2021-06-18 | 北京蜂云科创信息技术有限公司 | Method and equipment for determining urea consumption based on Internet of vehicles |
| CN112046426B (en) * | 2020-09-11 | 2022-04-05 | 潍柴动力股份有限公司 | Method and device for processing vehicle energy consumption |
| CN112196641A (en) * | 2020-10-10 | 2021-01-08 | 上海星融汽车科技有限公司 | Prediction prompting method for driving range of vehicle urea solution |
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