CN115240294A - Commercial vehicle urea consumption statistical analysis system and method - Google Patents
Commercial vehicle urea consumption statistical analysis system and method Download PDFInfo
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- CN115240294A CN115240294A CN202210832957.7A CN202210832957A CN115240294A CN 115240294 A CN115240294 A CN 115240294A CN 202210832957 A CN202210832957 A CN 202210832957A CN 115240294 A CN115240294 A CN 115240294A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0808—Diagnosing performance data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
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- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention relates to a statistical analysis system and a statistical analysis method for urea consumption of a commercial vehicle, which comprises the following steps: the vehicle-mounted terminal is used for reading and calculating; the vehicle networking platform is used for counting the urea consumption and calculating the urea-fuel ratio; the terminal user system is used for accessing and inquiring the Internet of vehicles platform; the vehicle-mounted terminal is in wireless network communication connection with the Internet of vehicles platform; and the terminal user system is in wireless network communication connection with the Internet of vehicles platform. The invention also relates to a statistical analysis method for the urea consumption of the commercial vehicle, which comprises the following steps: sending out a message; analyzing the message; calculating the urea consumption; uploading the accumulated consumption of urea, the finally received liquid level of the urea box, the driving mileage and the fuel consumption; obtaining the total urea consumption; counting the urea consumption; the alarm of urea leakage and the alarm of urea theft are sent out; and pushing a reminding of the abnormal consumption of urea. The invention is more accurate in calculating the urea consumption; further, the statistical analysis and early warning prompt of the urea consumption are more accurate.
Description
Technical Field
The invention relates to the technical field of control of engine tail gas purification treatment, in particular to a commercial vehicle urea consumption statistical analysis system and a commercial vehicle urea consumption statistical analysis method.
Background
The engine exhaust contains a harmful substance (NOx for short) such as nitrogen oxide, and its main components are NO and NO2.NOx is a reaction product of N2 and O2 in the air drawn into the cylinder by the engine at high temperatures. National emission legislation limits the amount of NOx emissions and defines limits of varying degrees, requiring vehicles exceeding the respective limits to produce the necessary and differentiated reaction actions for the purpose of controlling NOx emissions.
SCR (Selective Catalytic Reduction) technology is the primary technology for engines to control NOx emissions, the most common forms of which are: the ammonia gas is generated by decomposing the urea aqueous solution, and the ammonia gas and NOx are subjected to selective catalytic reduction reaction under the action of the SCR catalyst to generate nitrogen and water and then discharged into the atmosphere, and the emission of the NOx is effectively controlled by spraying different urea amounts into the exhaust of the diesel engine.
The urea belongs to consumables, extra cost can be generated when the urea consumption is abnormal, the urea consumption of the vehicle can be accurately known through accurate statistics, monitoring and analysis of the urea consumption of the vehicle, and the urea consumption abnormal condition can be early warned in time.
The typical prior art, such as a chinese patent application No. CN202010469032.1 entitled "method and apparatus for determining urea consumption based on internet of vehicles", discloses determining a urea liquid level change trend according to a liquid level data set and a front-back liquid level change difference determined by a urea liquid level message within a preset time, and determining urea consumption according to a difference between urea liquid level cumulative falling data and urea liquid level cumulative rising data.
The defects of the prior art are as follows:
in the invention patent 'a method and equipment for determining urea consumption based on Internet of vehicles', urea consumption is calculated according to urea liquid level rising and falling data, but urea liquid level data measurement is not accurate; the reasons are two:
1. as shown in FIG. 1, the urea level data is easy to fluctuate and interfere with the urea level in a urea tank in the running process of a vehicle;
2. further, as shown in fig. 2, the urea consumption calculation error obtained from the urea liquid level change of the urea tank is large due to the irregular shapes of the different urea tanks, and the urea consumption statistics is inaccurate.
Disclosure of Invention
Aiming at the problems, the invention provides a statistical analysis system and a statistical analysis method for the urea consumption of a commercial vehicle, which aim to calculate the urea consumption more accurately; further, the statistical analysis and early warning prompt of the urea consumption are more accurate.
In order to solve the problems, the technical scheme provided by the invention is as follows:
a statistical analysis system for urea consumption of a commercial vehicle comprises the following parts:
the vehicle-mounted terminal is used for communicating with the vehicle bus, reading the real-time urea injection amount, the urea tank liquid level, the total fuel oil consumption amount and the driving mileage of the vehicle, performing cumulative calculation on the real-time urea consumption amount of the vehicle, and calculating the urea consumption amount in a preset statistical period which is preset manually; the preset statistical period comprises a first preset time period and a second preset time period which are manually preset; the first preset time period is less than the second preset time period;
the Internet of vehicles platform is used for calculating the urine-fuel ratio according to the urea consumption, the urea tank liquid level, the mileage and the total fuel consumption in the preset statistical period; the urine-fuel ratio is the total urea consumption in the preset statistical period divided by the total fuel consumption in the preset statistical period; the total urea consumption is obtained by statistics of the Internet of vehicles platform;
the end user system is used for accessing and inquiring the urea consumption, the urea tank liquid level, the driving mileage and the fuel consumption counted by the Internet of vehicles platform through a wireless network;
the vehicle-mounted terminal is arranged on the vehicle and is in communication connection with the Internet of vehicles platform through a wireless network;
and the terminal user system is in communication connection with the Internet of vehicles platform through a wireless network.
Preferably, the vehicle-mounted terminal makes the urea consumption, the urea tank liquid level, the mileage and the total fuel consumption in each preset statistical period into a statistical data packet, and uploads all the statistical data packets to the vehicle networking platform;
and the Internet of vehicles platform receives all the statistical data packets uploaded by the vehicle-mounted terminal, and then unpacks the statistical data packets to obtain all the urea consumption in the preset statistical period, the urea tank liquid level, the mileage and the total fuel consumption.
Preferably, the internet of vehicles platform calculates the urea consumption, the urea tank liquid level, the mileage and the total fuel consumption in all the preset statistical periods to obtain the total urea consumption, the total mileage, the total fuel consumption and the urea liquid level change in all the preset statistical periods, and then calculates the urine-fuel ratio according to the total urea consumption and the total fuel consumption.
Preferably, the vehicle networking platform generates a urea statistical report according to the total urea consumption of the vehicle, monitors the abnormal urea consumption state and pushes the urea statistical analysis report and the prompt alarm; the prompting alarm comprises a urea leakage alarm, a urea theft alarm and a urea consumption abnormity prompt.
Preferably, the end user system receives the urea statistical analysis report and the prompt alarm from the internet of vehicles platform.
A statistical analysis method for the urea consumption of a commercial vehicle by using a statistical analysis system for the urea consumption of the commercial vehicle comprises the following steps:
s100, a vehicle CAN bus sends a real-time urea injection amount message, a urea liquid level message, a driving mileage message and a total fuel consumption message of the vehicle;
s200, the vehicle-mounted terminal reads and analyzes the real-time urea injection amount message, the urea liquid level message, the mileage running message and the total fuel consumption message of the vehicle through communication of the vehicle CAN bus, and the real-time urea injection amount, the urea tank liquid level, the mileage running and the total fuel consumption of the vehicle are respectively obtained;
s300, counting and calculating the urea consumption in the first preset time period by the vehicle-mounted terminal;
s400, the vehicle-mounted terminal uploads a data packet to the Internet of vehicles platform once every second preset time period; the uploaded data packet comprises the urea accumulated consumption of all the first preset time periods in the second preset time period, and the urea tank liquid level, the driving mileage and the total fuel consumption received last time in the second preset time period;
s500, the Internet of vehicles platform counts the total urea consumption in all the preset counting periods according to time or mileage;
s600, the urea tank liquid level and the urea accumulated consumption value are operated as follows:
if the descending amplitude of the liquid level of the urea box exceeds a first preset limit value and the accumulated consumption of urea is less than a second preset limit value, the urea leakage alarm or the urea theft alarm is sent out; the first preset limit value and the second preset limit value are determined and obtained by searching a manually preset trip meter;
s700, according to the value of the urine-fuel ratio obtained by the statistical calculation of the Internet of vehicles platform, the following operations are carried out:
and if the urine-fuel ratio exceeds an artificially preset urine-fuel ratio limit value, pushing the urea consumption abnormity prompt by the Internet of vehicles platform.
Preferably, in S400, the vehicle-mounted terminal statistically calculates the urea cumulative consumption in the first preset time period according to the real-time urea injection amount of the vehicle and the sampling frequency used when the real-time urea injection amount is collected.
Preferably, the total urea consumption in S500 is obtained by:
s510, the Internet of vehicles platform receives the urea tank liquid level, the mileage and the total fuel consumption uploaded by the vehicle-mounted terminal once every second preset time period, and the urea accumulated consumption in all the first preset time periods;
s520, the Internet of vehicles platform counts the urea cumulative consumption received in all the first preset time periods to obtain the total urea consumption in all the preset counting periods.
Preferably, the end user system comprises an end user display website, an application program and a mobile terminal device provided with the application program;
the end user system also inquires all the urea consumption and the urea-fuel ratio in the preset statistical period counted by the Internet of vehicles platform, and receives the urea leakage alarm, the urea stolen alarm and the urea consumption abnormity prompt of the Internet of vehicles platform.
Preferably, in S100, the vehicle CAN bus also sends out a total urea consumption message of the vehicle.
Compared with the prior art, the invention has the following advantages:
1. the vehicle urea consumption is calculated according to the vehicle urea injection quantity message information, so that the calculation of the urea consumption is more accurate;
2. the invention is a method for inquiring and analyzing the urea consumption, the urea liquid level and the urea-fuel ratio of the vehicle, reminding abnormal states and giving an alarm through the vehicle-mounted terminal and the vehicle networking platform, so that the statistical analysis and the early warning prompt of the urea consumption are more accurate.
Drawings
FIG. 1 is a diagram of the change in urea level in a urea tank of the prior art in the background art;
FIGS. 2a to 2d are photographs taken of four different urea tanks;
FIG. 3 is a schematic diagram of a system configuration according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart of a method according to an embodiment of the present invention;
FIG. 5 is a statistical screenshot of the urea consumption of the Internet of vehicles for a section of a driving cycle of the system in accordance with an embodiment of the present invention.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to be purely exemplary and are not intended to limit the scope of the invention, as various equivalent modifications of the invention will occur to those skilled in the art upon reading the present disclosure and fall within the scope of the appended claims.
As shown in fig. 3, the statistical analysis system and method for urea consumption of commercial vehicle includes the following parts:
the vehicle-mounted terminal is used for communicating with a vehicle bus, reading the real-time urea injection amount, the liquid level of a urea box, the total fuel consumption amount and the driving mileage of the vehicle, performing cumulative calculation on the real-time urea consumption amount of the vehicle, and calculating the urea consumption amount in a preset statistical period which is preset manually; the preset statistical period comprises a first preset time period and a second preset time period which are manually preset; the first preset time period is less than the second preset time period.
In this embodiment, the vehicle-mounted terminal makes the urea consumption, the urea tank liquid level, the mileage and the total fuel consumption in each preset statistical period into a statistical data packet, and uploads all the statistical data packets to the internet-of-vehicle platform.
The Internet of vehicles platform is used for calculating the urea-fuel ratio according to the urea consumption, the liquid level of the urea tank, the driving mileage and the total fuel consumption in a preset statistical period; the urine-fuel ratio is the total urea consumption in a preset statistical period divided by the total fuel consumption in the preset statistical period; the total urea consumption is obtained by the statistics of the Internet of vehicles platform.
In this embodiment, the car networking platform receives all statistical data packets uploaded by the car terminal, and then unpacks the statistical data packets to obtain the urea consumption in all preset statistical periods, and the total consumption of the urea tank liquid level, the mileage and the fuel.
In this specific embodiment, the internet of vehicles platform calculates urea consumption, urea tank liquid level, mileage and total fuel consumption in all preset statistical periods to obtain total urea consumption, total mileage, total fuel consumption and urea liquid level change in all preset statistical periods, and then calculates the urea-fuel ratio according to the total urea consumption and the total fuel consumption.
In the specific embodiment, the Internet of vehicles platform generates a urea statistical report according to the total urea consumption of the vehicle, monitors the abnormal urea consumption state, and pushes a urea statistical analysis report and prompts and alarms; the prompting alarm comprises a urea leakage alarm, a urea theft alarm and a urea consumption abnormity prompt.
The terminal user system is used for accessing and inquiring the urea consumption, the urea box liquid level, the driving mileage and the total fuel consumption counted by the Internet of vehicles platform through a wireless network;
the vehicle-mounted terminal is installed on a vehicle and is in communication connection with the Internet of vehicles platform through a wireless network.
And the terminal user system is in communication connection with the Internet of vehicles platform through a wireless network.
In the embodiment, the vehicle-mounted terminal is installed on a vehicle and connected with a vehicle CAN bus, and CAN read and acquire a real-time urea injection amount message A, a urea liquid level message B, a driving mileage message C, a total fuel consumption message D, or a total urea consumption message E of the vehicle from the vehicle CAN bus, and analyze and acquire real-time urea injection amount information A [ i ], urea liquid level information B [ i ], driving mileage information Ci ], total fuel consumption information D [ i ], or total urea consumption information E [ i ] of the vehicle; where i is the number of orders in which the information was received and resolved.
In the embodiment, the vehicle-mounted terminal obtains the real-time urea injection amount information A [ i ] according to analysis]Counting and calculating every first preset time T 1 Internal cumulative urea injection quantity X n And a is a 1 Less than or equal to T 1 (ii) a The cumulative urea injection amount is expressed by equation (1):
X n ＝X n [i]＝X n [i-1]+A[i]*a 1 (1)
wherein: n is the first preset time T of the accumulation calculation 1 The number of (2).
In this embodiment, the first predetermined time T 1 May be set to 1 second.
In this embodiment, the vehicle-mounted terminal is set to every second preset time T 2 Uploading primary data to the Internet of vehicles platform through the 3G/4G wireless network; the second preset time is expressed by the following formula (2):
T 2 ＝n*T 1 (2)
wherein: n is a positive integer greater than or equal to 1.
It should be noted that the data content uploaded by the vehicle-mounted terminal includes a second preset time T 2 All of the plurality of first preset times T 1 Cumulative urea consumption X of 1 、X 2 ……X n And a second preset time T of the vehicle-mounted terminal 2 Last urea level B of internal collection T2 [i]Mileage C T2 [i]And total fuel consumption D T2 [i](ii) a If the vehicle-mounted terminal can collect the total urea consumption E [ i ] on the vehicle bus]And the vehicle-mounted terminal is started every second preset time T 2 Uploading the total urea consumption E acquired at the last time T2 [i]Urea liquid level B T2 [i]And a driving mileage C T2 [i]And total fuel consumption D T2 [i]。
In this embodiment, the second predetermined time T 2 Set to 10 seconds.
It should be noted that the frequency of collecting and analyzing each message information by the vehicle-mounted terminal is the same as the period of each message sent by the vehicle bus, and is a 1 ms、a 2 ms、a 3 ms、a 4 ms、a 5 ms。
In the embodiment, the vehicle-mounted terminal is a vehicle-mounted T-BOX.
In this embodiment, every second preset time T of the Internet of vehicles platform 2 Receiving data uploaded by the vehicle-mounted terminal through a 3G/4G wireless network, and accumulating the consumption X according to all received urea n Urea liquid level B T2 [i]Mileage C T2 [i]Total fuel consumption D T2 [i]Or total consumption of urea E T2 [i]The urea consumption, the driving mileage, the total fuel consumption and the urine-fuel ratio of any given period of time, mileage or one driving cycle are calculated, and reports of the urea consumption, the urea level and the urine-fuel ratio are generated at regular intervals (daily, weekly, monthly, annually, etc.).
In this embodiment, the end user system receives the urea statistical analysis report and the prompt alarm from the car networking platform.
In this embodiment, the end user system includes an end user presentation website, an application program, and a mobile terminal device in which the application program is installed.
The terminal user system also inquires the urea consumption and the urea-fuel ratio in all preset counting periods counted by the Internet of vehicles platform, and receives urea leakage alarm, urea theft alarm and urea consumption abnormity prompt of the Internet of vehicles platform.
As shown in fig. 4, a statistical analysis method for urea consumption of a commercial vehicle of a statistical analysis system for urea consumption of a commercial vehicle includes the following steps:
s100, sending a real-time urea injection quantity message A, a urea liquid level message B, a mileage message C and a total fuel consumption message D of the vehicle by a vehicle CAN bus.
In this embodiment, the corresponding sending periods of the four messages are a 1 ms、a 2 ms、a 3 ms、a 4 ms, specifically:
vehicle CAN bus Per Interval a 1 And ms sends out the real-time urea injection quantity of the current period, and so on.
In this embodiment, in S100, the vehicle CAN bus further sends a message E of total urea consumption of the vehicle, where the sending period of the message is a 5 ms。
S200, the vehicle-mounted terminal reads and analyzes the real-time urea injection quantity message, the urea liquid level message, the mileage message and the total fuel consumption message of the vehicle through the communication of the vehicle CAN bus, and the real-time urea injection quantity, the urea tank liquid level, the mileage and the total fuel consumption of the vehicle are respectively obtained.
S300, counting and calculating the urea consumption in a first preset time period by the vehicle-mounted terminal.
S400, the vehicle-mounted terminal uploads a data packet to the Internet of vehicles platform every second preset time period; the uploaded data packet comprises the urea accumulated consumption of all the first preset time periods in the second preset time period and the urea tank liquid level, the driving mileage and the total fuel consumption received last time in the second preset time period.
In this embodiment, in S400, the vehicle-mounted terminal statistically calculates the cumulative consumption of urea within the first preset time period according to the real-time urea injection amount of the vehicle and the sampling frequency used when the real-time urea injection amount is collected.
S500, counting by the Internet of vehicles platform to obtain the total urea consumption in all preset counting periods;
in this embodiment, the total urea consumption in S500 is obtained by the following steps:
s510, the vehicle networking platform receives the urea tank liquid level, the mileage and the total fuel consumption uploaded by the vehicle-mounted terminal once every second preset time period, and the urea accumulated consumption in all the first preset time periods.
S500, counting the total urea consumption in all preset counting periods by the Internet of vehicles according to time or mileage;
s600, according to the liquid level of the urea box and the value of the urea cumulative consumption, the following operations are carried out:
if the descending amplitude of the liquid level of the urea box exceeds a first preset limit value and the accumulated consumption of urea is less than a second preset limit value, a urea leakage alarm or a urea theft alarm is given out; the first preset limit value and the second preset limit value are determined and obtained by searching a manually preset trip meter.
S700, according to the value of the urine-fuel ratio obtained by statistical calculation of the Internet of vehicles platform, the following operations are carried out:
if the urine-fuel ratio exceeds a manually preset urine-fuel ratio limit value, the vehicle networking platform pushes a urea consumption abnormity prompt.
It should be noted that there are two calculation methods for the urine-fuel ratio; specifically, the "urea consumption in all the preset statistical periods" and the "preset statistical period" in the urea tank liquid level, the mileage and the total fuel consumption "referred to herein have two expressions, i.e., a time period and a mileage period; in this embodiment, the calculation method of the urine fuel ratio in two different cycles will be detailed:
1. calculated by time period
In a time period, the method can calculate the urea consumption, the driving mileage, the total fuel consumption and the urine-fuel ratio of any specified period of time; the specific method comprises the following steps:
A100. the urea consumption delta A of a specified period of time is the sum of all urea consumption received by the Internet of vehicles platform from the starting time to the ending time of the specified time, and is expressed according to the formula (3):
ΔA＝Σ(X start ...X stop ) (3)
wherein: x start The cumulative urea consumption corresponding to the starting time of the designated time; x stop Is the cumulative urea consumption corresponding to the time of the specified time end.
Further, there is also a way to obtain Δ a:
the urea consumption Delta A of a specified period of time is the total urea consumption E at the end of the specified period of time T2 [stop]Subtracting the total urea consumption E at the starting time of the specified time T2 [start](ii) a In this case,. DELTA.A is expressed by the formula (4)
ΔA＝E T2 [stop]-E T2 [start] (4)
A200. The driving distance delta C of a period of time is appointed as the driving distance C at the appointed time end moment T2 [stop]Subtracting the driving distance C at the starting moment of the designated time T2 [start]Expressed according to formula (5):
ΔC＝C T2 [stop]-C T2 [start] (5)
A300. the total fuel consumption Delta D of a specified period of time is the total fuel consumption D at the end time of the specified period of time T2 [stop]Subtracting the total fuel consumption D at the starting moment of the specified time T2 [start]Expressed according to formula (6):
ΔD＝D T2 [stop]-D T2 [start] (6)
A400. the urine-fuel ratio of any given period of time is the urea consumption of that period of time divided by the total fuel consumption of that period of time; the urine fuel ratio is expressed by the formula (7):
δ＝ΔA/ΔD (7)
2. calculated by mileage period
In a mileage period, the method can be used for calculating the urea consumption, the driving mileage, the total fuel consumption and the urine-fuel ratio of any specified mileage; the principle is the same as that of the time period, and the specific method is as follows:
B100. the urea consumption delta B of a specified mileage is the sum of all urea consumption from the starting point of the specified mileage to the ending point of the specified mileage, and is expressed by the following formula (9):
ΔB＝Σ(Y start ...Y stop ) (9)
wherein: y is start Is the cumulative urea consumption, Y, corresponding to the starting point of the specified mileage stop Is the cumulative urea consumption corresponding to the end point of the specified mileage.
Further, there is a way to obtain Δ B:
the urea consumption of a specified mileage is the total urea consumption F corresponding to the end point moment of the specified mileage T2 [stop]Subtracting the total urea consumption corresponding to the starting moment of the specified mileageQuantity F T2 [start](ii) a In this case,. DELTA.B is expressed by the following formula (10)
ΔB＝F T2 [stop]-F T2 [start] (10)
B200. The total fuel consumption delta G of a specified mileage is the total fuel consumption G at the end time of the specified mileage T2 [stop]Subtracting the total fuel consumption G at the starting moment of the specified mileage T2 [start]Expressed according to formula (11):
ΔG＝G T2 [stop]-G T2 [start] (11)
B300. specifying the urine-fuel ratio for a mileage as the urea consumption for the mileage divided by the total fuel consumption for the mileage; the urine fuel ratio is expressed by the formula (12):
δ＝ΔB/ΔG (12)
it is further noted that by adopting the method of the invention, the urea consumption, the mileage, the total fuel consumption and the urine-fuel ratio of any one driving cycle can be calculated; one driving cycle is a process period from power-on to power-off of the vehicle, and can be a time period or a mileage period; in this embodiment, taking a time period as an example, the driving cycle is calculated according to time, so the method is the same as a100 to a400, and the meaning of the parameters is the same:
the urea consumption Delta A of a specified driving cycle is the total urea consumption E at the end time of the specified driving cycle T2 [stop]Subtracting the total urea consumption E at the starting time of the specified driving cycle T2 [start](ii) a In this case,. DELTA.A is expressed by the formula (13)
ΔA＝E T2 [stop]-E T2 [start] (13)
A200. The driving range delta C of a section of driving cycle is appointed as the driving range C at the end moment of the appointed driving cycle T2 [stop]Subtracting the driving range C at the starting moment of the specified driving cycle T2 [start]Expressed according to formula (14):
ΔC＝C T2 [stop]-C T2 [start] (14)
A300. the total fuel consumption Delta D of a specified driving cycle is the total fuel consumption D at the end moment of the specified driving cycle T2 [stop]Subtracting the total fuel consumption D at the starting moment of the specified driving cycle T2 [start]Expressed according to formula (15):
ΔD＝D T2 [stop]-D T2 [start] (15)
A400. arbitrarily specifying a urine-fuel ratio for a segment of a driving cycle as a urea consumption for the segment of the driving cycle divided by a total fuel consumption for the segment of the driving cycle; the urine fuel ratio is expressed by the formula (16):
δ＝ΔA/ΔD (16)
as shown in fig. 5, it is very convenient to read the urea consumption statistics at any time/mileage/driving cycle by the method of the present invention.
In this particular embodiment: when the urine-fuel ratio calculated by the Internet of vehicles platform exceeds a preset urine-fuel ratio limit value, the Internet of vehicles platform sends abnormal alarm information to remind that vehicle faults or poor driving behaviors cause the urine-fuel ratio to be higher, the vehicle faults include but are not limited to low urea concentration, low SCR conversion efficiency and the like, and the poor driving behaviors include but are not limited to frequent rapid acceleration, heavy accelerator and the like.
In this embodiment, the urine-fuel ratio limit is 5% to 10%.
It needs to be further explained that when the urea liquid level in a period of time or a period of travel is reduced and exceeds the liquid level limit value, and the urea consumption is less than a first preset limit value, the vehicle networking platform sends out a prompt that the vehicle has a urea leakage behavior; when the urea liquid level is reduced and exceeds the liquid level limit value, and the urea consumption is less than a second preset limit value, the vehicle networking platform sends out the reminding that the vehicle has the stolen urea.
In the embodiment, the liquid level limit is 5% -10%, the first preset limit is larger than the second preset limit, the first preset limit is determined according to a driving mileage table look-up, and the second preset limit is 0-0.3L.
It is further noted that the end user system can log in and access the data of the internet of vehicles platform through the wireless network, inquire any specified time, urea consumption, urea liquid level, mileage, fuel consumption and urea-fuel ratio counted by the internet of vehicles platform, look over the urea consumption, urea liquid level and urea-fuel ratio report generated by the internet of vehicles platform at regular intervals (daily, weekly, monthly or yearly, etc.), and receive the warning of the high urea-fuel ratio and the warning of urea leakage and urea theft sent by the internet of vehicles platform. The terminal user system comprises a terminal user information display website or mobile terminal equipment for installing corresponding application programs.
In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. To those skilled in the art; various modifications to these embodiments will be readily apparent, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a commercial car urea consumption statistical analysis system which characterized in that: comprises the following parts:
the vehicle-mounted terminal is used for communicating with the vehicle bus, reading the real-time urea injection amount, the urea tank liquid level, the total fuel oil consumption amount and the driving mileage of the vehicle, performing cumulative calculation on the real-time urea consumption amount of the vehicle, and calculating the urea consumption amount in a preset statistical period which is preset manually; the preset statistical period comprises a first preset time period and a second preset time period which are manually preset; the first preset time period is less than the second preset time period;
the Internet of vehicles platform is used for calculating the urine-fuel ratio according to the urea consumption, the urea tank liquid level, the mileage and the total fuel consumption in the preset statistical period; the urine-fuel ratio is the total urea consumption in the preset statistical period divided by the total fuel consumption in the preset statistical period; the total urea consumption is obtained by the vehicle networking platform in a statistical manner;
the end user system is used for accessing and inquiring the urea consumption, the urea box liquid level, the driving mileage and the fuel consumption counted by the Internet of vehicles platform through a wireless network;
the vehicle-mounted terminal is arranged on the vehicle and is in communication connection with the Internet of vehicles platform through a wireless network;
and the terminal user system is in communication connection with the Internet of vehicles platform through a wireless network.
2. The statistical analysis system for urea consumption of commercial vehicles according to claim 1, characterized in that: the vehicle-mounted terminal makes the urea consumption in each preset statistical period, the liquid level of the urea tank, the driving mileage and the total fuel consumption into a statistical data packet, and uploads all the statistical data packets to the vehicle networking platform;
and the Internet of vehicles platform receives all the statistical data packets uploaded by the vehicle-mounted terminal, and then unpacks the statistical data packets to obtain all the urea consumption in the preset statistical period, the urea tank liquid level, the mileage and the total fuel consumption.
3. The statistical analysis system for urea consumption of commercial vehicles according to claim 2, characterized in that: and the Internet of vehicles platform calculates the urea consumption, the liquid level of the urea box, the driving mileage and the total fuel consumption in all the preset statistical periods to obtain the total urea consumption, the total driving mileage, the total fuel consumption and the urea liquid level change in all the preset statistical periods, and then calculates the urine-fuel ratio according to the total urea consumption and the total fuel consumption.
4. The statistical analysis system for urea consumption of commercial vehicles according to claim 3, characterized in that: the Internet of vehicles platform generates a urea statistical report according to the total urea consumption of the vehicle, monitors the abnormal state of urea consumption and pushes the urea statistical analysis report and the prompt alarm; the prompting alarm comprises a urea leakage alarm, a urea theft alarm and a urea consumption abnormity prompt.
5. The statistical analysis system for urea consumption of commercial vehicles according to claim 4, characterized in that: and the end user system receives the urea statistical analysis report and the prompt alarm from the Internet of vehicles platform.
6. A statistical analysis method for the urea consumption of a commercial vehicle by using the statistical analysis system for the urea consumption of the commercial vehicle as claimed in claim 5 is characterized in that: comprises the following steps:
s100, a vehicle CAN bus sends a real-time urea injection amount message, a urea liquid level message, a driving mileage message and a total fuel consumption message of the vehicle;
s200, the vehicle-mounted terminal reads and analyzes the real-time urea injection quantity message, the urea liquid level message, the mileage message and the total fuel consumption message of the vehicle through communication of the vehicle CAN bus, and the real-time urea injection quantity, the urea tank liquid level, the mileage and the total fuel consumption of the vehicle are obtained respectively;
s300, counting and calculating the urea consumption in the first preset time period by the vehicle-mounted terminal;
s400, the vehicle-mounted terminal uploads a data packet to the Internet of vehicles platform once every second preset time period; the uploaded data packet comprises the urea accumulated consumption of all the first preset time periods in the second preset time period, and the urea tank liquid level, the driving mileage and the total fuel consumption received last time in the second preset time period;
s500, the Internet of vehicles platform counts the total urea consumption in all the preset counting periods according to time or mileage;
s600, the urea tank liquid level and the urea accumulated consumption value are operated as follows:
if the descending amplitude of the liquid level of the urea box exceeds a first preset limit value and the accumulated consumption of urea is less than a second preset limit value, the urea leakage alarm or the urea theft alarm is sent out; the first preset limit value and the second preset limit value are determined and obtained by searching a manually preset trip meter;
s700, according to the value of the urine-fuel ratio obtained by the statistical calculation of the Internet of vehicles platform, the following operations are carried out:
and if the urine-fuel ratio exceeds an artificially preset urine-fuel ratio limit value, pushing the urea consumption abnormity prompt by the Internet of vehicles platform.
7. The statistical analysis method for urea consumption of commercial vehicles according to claim 6, characterized in that: in S400, the vehicle-mounted terminal calculates the urea cumulative consumption in the first preset time period according to the real-time urea injection quantity of the vehicle and the sampling frequency used when the real-time urea injection quantity is collected.
8. The statistical analysis method for urea consumption of commercial vehicles according to claim 7, characterized in that: the total urea consumption in S500 is obtained by:
s510, the Internet of vehicles platform receives the urea tank liquid level, the mileage and the total fuel consumption uploaded by the vehicle-mounted terminal once every second preset time period, and the urea accumulated consumption in all the first preset time periods;
s520, the Internet of vehicles platform counts the urea cumulative consumption in all the first preset time periods to obtain the total urea consumption in all the preset counting periods.
9. The statistical analysis method for urea consumption of a commercial vehicle according to claim 8, characterized in that: the terminal user system comprises a terminal user display website, an application program and mobile terminal equipment provided with the application program;
the end user system also inquires all the urea consumption in the preset statistical period counted by the Internet of vehicles platform, the urea fuel ratio and the urea leakage alarm, the urea stolen alarm and the urea consumption abnormal prompt of the Internet of vehicles platform are received.
10. The statistical analysis method for urea consumption of commercial vehicles according to claim 9, characterized in that: in S100, the vehicle CAN bus further sends a message of total urea consumption of the vehicle.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469802A (en) * | 2018-01-31 | 2018-08-31 | 武汉华威专用汽车检测有限责任公司 | A kind of information of vehicles remote monitoring and diagnostics system |
| CN110430108A (en) * | 2019-08-01 | 2019-11-08 | 北京汇通天下物联科技有限公司 | Urea based on car networking equipment consumes the method and device of long-range monitoring, alarming |
| CN111005793A (en) * | 2019-12-30 | 2020-04-14 | 潍柴动力股份有限公司 | Method and device for detecting urea consumption abnormality and storage medium |
| CN111740952A (en) * | 2020-05-13 | 2020-10-02 | 南斗六星***集成有限公司 | Vehicle supervision platform data management method and system |
| CN111894712A (en) * | 2020-05-28 | 2020-11-06 | 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 |
-
2022
- 2022-07-14 CN CN202210832957.7A patent/CN115240294A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469802A (en) * | 2018-01-31 | 2018-08-31 | 武汉华威专用汽车检测有限责任公司 | A kind of information of vehicles remote monitoring and diagnostics system |
| CN110430108A (en) * | 2019-08-01 | 2019-11-08 | 北京汇通天下物联科技有限公司 | Urea based on car networking equipment consumes the method and device of long-range monitoring, alarming |
| CN111005793A (en) * | 2019-12-30 | 2020-04-14 | 潍柴动力股份有限公司 | Method and device for detecting urea consumption abnormality and storage medium |
| CN111740952A (en) * | 2020-05-13 | 2020-10-02 | 南斗六星***集成有限公司 | Vehicle supervision platform data management method and system |
| CN111894712A (en) * | 2020-05-28 | 2020-11-06 | 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 |
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