CN108007512A - Instantaneous oil consumption calculates display methods and system - Google Patents
Instantaneous oil consumption calculates display methods and system Download PDFInfo
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- CN108007512A CN108007512A CN201711214727.XA CN201711214727A CN108007512A CN 108007512 A CN108007512 A CN 108007512A CN 201711214727 A CN201711214727 A CN 201711214727A CN 108007512 A CN108007512 A CN 108007512A
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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
- G01F9/023—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 with electric, electro-mechanic or electronic means
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Abstract
The invention discloses a kind of instantaneous oil consumption to calculate display methods and system, and the instantaneous oil consumption calculates display methods, including：Obtain the oil consumption umber of pulse of EFI ECU in the first preset time；Obtain operating range of the vehicle in the second preset time；The distributive value of EFI ECU in first preset time is calculated according to the oil consumption umber of pulse；The instantaneous oil consumption of vehicle in second preset time is calculated according to the distributive value and the operating range；The instantaneous oil consumption is sent to the instrument board of vehicle to be shown.Compared with prior art, method provided by the invention obtains final instantaneous oil consumption by sampling the pulse signal of EFI ECU, makes the instantaneous oil consumption of display more accurate, in the low speed of automobile and anxious acceleration, instantaneous fuel consumption values are not too large, the misunderstanding of user avoided, so as to lift the usage experience of user.
Description
Technical field
The present invention relates to automobile technical field, and display methods and system are calculated more particularly to a kind of instantaneous oil consumption.
Background technology
With the improvement of people ' s living standards and auto industry rapid development, automobile comes into the life of people,
More and more consumers have purchased automobile, the transit equipment as trip.
Automobile instrument panel is one of important equipment of automobile, and user can obtain Current vehicle conditions by instrument board and believe
The important information such as breath, Fuel Oil Remaining information, instantaneous fuel consumption information, mileage information, wherein instantaneous oil consumption is even more the weight of user's concern
One of point.
In the prior art, the renewal time of instantaneous oil consumption is shorter, and user sees that fuel consumption values change is too frequent, low in automobile
When speed and anxious acceleration, instantaneous fuel consumption values can be too big, and not have the upper limit, when user sees, can cause not understanding to user, and existing
In technology, the calculating accuracy of instantaneous oil consumption is low, have impact on user experience.
The content of the invention
It is contemplated that at least solve one of technical problem existing in the prior art.For this reason, one object of the present invention
It is to propose that a kind of instantaneous oil consumption calculates display methods, it is low solves the problems, such as that instantaneous oil consumption calculates accuracy.
Instantaneous oil consumption according to embodiments of the present invention calculates display methods, including：
Obtain the oil consumption umber of pulse of EFI ECU in the first preset time；
Obtain operating range of the vehicle in the second preset time；
The distributive value of EFI ECU in first preset time is calculated according to the oil consumption umber of pulse；
The instantaneous oil consumption of vehicle in second preset time is calculated according to the distributive value and the operating range；
The instantaneous oil consumption is sent to the instrument board of vehicle to be shown.
Instantaneous oil consumption according to embodiments of the present invention calculates display methods, obtains EFI ECU in the first preset time first
Oil consumption umber of pulse, the distributive value represented with reference to each pulse of vehicle, can calculate the spray of EFI ECU in the first preset time
Oil mass, the instantaneous oil consumption of vehicle in the second preset time of vehicle is then calculated according to the operating range of distributive value and vehicle, is compared
The prior art, method provided by the invention obtain final instantaneous oil consumption by sampling the pulse signal of EFI ECU, make display
Instantaneous oil consumption is more accurate, and in the low speed of automobile and anxious acceleration, instantaneous fuel consumption values are not too large, avoid the misunderstanding of user, from
And lift the usage experience of user.
In addition, instantaneous oil consumption according to the above embodiment of the present invention calculates display methods, can also have what is added as follows
Technical characteristic：
Further, in one embodiment of the invention, it is described pre- according to oil consumption umber of pulse calculating described first
If in the time the step of distributive value of EFI ECU in, the distributive value IFC is calculated using the following formula：
IFC=IFCP × FPP；
Wherein, the oil consumption umber of pulse that IFCP is EFI ECU in the first preset time got, FPP are each pulse generation
The distributive value of table.
Further, in one embodiment of the invention, it is described to be calculated according to the distributive value and the operating range
In second preset time the step of instantaneous oil consumption of vehicle in, the instantaneous oil consumption AFEt is calculated using the following formula：
Wherein, △ StThe operating range for being the vehicle that gets in the second preset time, t for described second it is default when
Between.
Further, in one embodiment of the invention, first preset time and the second preset time phase
Deng.
Further, in one embodiment of the invention, it is described to send the instantaneous oil consumption to the instrument board of vehicle
The step of to be shown, includes：
Whether the instantaneous oil consumption for judging to calculate exceedes default upper limit value；
If it is not, then the instantaneous oil consumption is sent to the instrument board of vehicle to be shown；
If so, then carry out showing the upper limit value in the instrument board of vehicle.
Further, in one embodiment of the invention, it is described to send the instantaneous oil consumption to the instrument board of vehicle
The step of to be shown, includes：
Obtain the current speed of vehicle；
Judge whether the speed is more than default speed lower limit；
If so, then the instantaneous oil consumption is sent to the instrument board of vehicle to be shown.
Further, in one embodiment of the invention, it is described to send the instantaneous oil consumption to the instrument board of vehicle
The step of to be shown, includes：
Judge whether the instantaneous oil consumption is 0；
If so, then default picture is shown in the instrument board of vehicle.
It is another object of the present invention to propose a kind of instantaneous oil consumption calculating display system, solve instantaneous oil consumption and calculate standard
The problem of really property is low.
Instantaneous oil consumption according to embodiments of the present invention calculates display system, including：
First acquisition module, for obtaining the oil consumption umber of pulse of EFI ECU in the first preset time；
Second acquisition module, for obtaining operating range of the vehicle in the second preset time；
First computing module, for calculating the spray of EFI ECU in first preset time according to the oil consumption umber of pulse
Oil mass；
Second computing module, for calculating car in second preset time according to the distributive value and the operating range
Instantaneous oil consumption；
Display module is sent, for the instantaneous oil consumption to be shown in the instrument board of vehicle.
In addition, instantaneous oil consumption according to the above embodiment of the present invention calculates display system, can also have what is added as follows
Technical characteristic：
Further, in one embodiment of the invention, first computing module is using described in the following formula calculating
Distributive value IFC：
IFC=IFCP × FPP；
Wherein, the oil consumption umber of pulse that IFCP is EFI ECU in the first preset time got, FPP are each pulse generation
The distributive value of table.
Further, in one embodiment of the invention, second computing module is using described in the following formula calculating
Instantaneous oil consumption AFEt：
Wherein, △ StThe operating range for being the vehicle that gets in the second preset time, t for described second it is default when
Between.
Further, in one embodiment of the invention, first preset time and the second preset time phase
Deng.
Further, in one embodiment of the invention, the transmission display module is specifically used for：
Whether the instantaneous oil consumption for judging to calculate exceedes default upper limit value；
If it is not, then the instantaneous oil consumption is sent to the instrument board of vehicle to be shown；
If so, then carry out showing the upper limit value in the instrument board of vehicle.
Further, in one embodiment of the invention, the transmission display module is specifically used for：
Obtain the current speed of vehicle；
Judge whether the speed is more than default speed lower limit；
If so, then the instantaneous oil consumption is sent to the instrument board of vehicle to be shown.
Further, in one embodiment of the invention, the transmission display module is specifically used for：
Judge whether the instantaneous oil consumption is 0；
If so, then default picture is shown in the instrument board of vehicle.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the flow chart of instantaneous oil consumption calculating display methods according to a first embodiment of the present invention；
Fig. 2 is the flow chart of the first embodiment of step S105 in Fig. 1；
Fig. 3 is the flow chart of second of embodiment of step S105 in Fig. 1；
Fig. 4 is the flow chart of the third embodiment of step S105 in Fig. 1；
Fig. 5 is the structure diagram of instantaneous oil consumption calculating display system according to a second embodiment of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without making creative work, belong to the scope of protection of the invention.
Referring to Fig. 1, the instantaneous oil consumption that first embodiment of the invention proposes calculates display methods, including：
S101, obtains the oil consumption umber of pulse of EFI ECU in the first preset time；
Wherein, oil consumption umber of pulse be combination instrument by sampling the signal on hard-wired return, using flash level or low side
Level saltus step triggering collection arrives, its unit is number, every time triggering cumulative 1, when it is implemented, can be in combination instrument
MCU increases sample circuit, and when receiving pulse signal, the accurate number of pulses of internal counter adds up, default to obtain first
The oil consumption umber of pulse of EFI ECU in time.
S102, obtains operating range of the vehicle in the second preset time；
Wherein, first preset time and second preset time can be equal, can not also wait, specifically in this reality
Apply in example, for the ease of calculating, the first preset time and the second preset time are for example all 2s, that is, obtain EFI ECU in 2s
Oil consumption umber of pulse, while operating range of the vehicle in the second preset time in 2s is obtained, operating range can pass through vehicle row
The average speed per hour sailed is multiplied by the time (2s) acquisition, its unit is km, is specifically counted with 100km.
S103, the distributive value of EFI ECU in first preset time is calculated according to the oil consumption umber of pulse；
Wherein, the distributive value IFC is calculated using the following formula：
IFC=IFCP × FPP；
Wherein, the oil consumption umber of pulse that IFCP is EFI ECU in the first preset time got, FPP are each pulse generation
The distributive value of table, unit L.FPP specifically refers to the fuel oil pulse that electric spray control system defines and the definition of distributive value, FPP with
Specific vehicle is related, is a fixed reference, is not required to gather, can be generally defined as the spray that 1 pulse represents 30 microlitres
Oil mass, by taking speed=90km/h as an example, fuel oil pulse frequency is 200Hz, i.e., 200 pulses per second, the fuel level gauge of each pulse
Indicating value is 30*10-6L。
S104, the instantaneous oil of vehicle in second preset time is calculated according to the distributive value and the operating range
Consumption；
Wherein, the instantaneous oil consumption AFEt is calculated using the following formula：
Wherein, △ StThe operating range for being the vehicle that gets in the second preset time, t for described second it is default when
Between, in the present embodiment, t is 2s, namely 2/3600h, and step S103 the distributive value IFCP calculated and step S102 are obtained
To operating range substitute into above-mentioned formula can calculate instantaneous oil consumption AFEt, its unit is L/100km.
S105, the instantaneous oil consumption is sent to the instrument board of vehicle to be shown.
Instantaneous oil consumption according to embodiments of the present invention calculates display methods, obtains EFI ECU in the first preset time first
Oil consumption umber of pulse, the distributive value represented with reference to each pulse of vehicle, can calculate the spray of EFI ECU in the first preset time
Oil mass, the instantaneous oil consumption of vehicle in the second preset time of vehicle is then calculated according to the operating range of distributive value and vehicle, is compared
The prior art, method provided by the invention obtain final instantaneous oil consumption by sampling the pulse signal of EFI ECU, make display
Instantaneous oil consumption is more accurate, and in the low speed of automobile and anxious acceleration, instantaneous fuel consumption values are not too large, avoid the misunderstanding of user, from
And lift the usage experience of user.
In addition, as the first optional embodiment, referring to Fig. 2, in step S105, it is described by the instantaneous oil consumption
Send to vehicle instrument board to be shown the step of include：
Whether S1051a, the instantaneous oil consumption for judging to calculate exceed default upper limit value；
Wherein, upper limit value can be according to the power of specific vehicle, including automobile engine, automobile normal running oil consumption etc.
Determine.For example, default upper limit value can be set as 30L/100km.
S1052a, if it is not, then sending the instantaneous oil consumption to the instrument board of vehicle to be shown；
Wherein, if the instantaneous oil consumption AFEt that step S104 is calculated is 25L/100km, not less than default upper limit value, then
The instantaneous oil consumption 25L/100km calculated is sent to the instrument board of vehicle to be shown；
S1053a, if so, then carrying out showing the upper limit value in the instrument board of vehicle.
Wherein, if the instantaneous oil consumption AFEt that step S104 is calculated is 35L/100km, default upper limit value has been exceeded, then
Display upper limit value 30L/100km is carried out in the instrument board of vehicle.
By above-mentioned steps, can vehicle low speed and it is anxious accelerate when, the display of instantaneous oil consumption is not too large, avoids using
The misunderstanding at family.
In addition, as second of optional embodiment, referring to Fig. 3, in step S105, it is described by the instantaneous oil consumption
Send to vehicle instrument board to be shown the step of can also include：
S1051b, obtains the current speed of vehicle；
S1052b, judges whether the speed is more than default speed lower limit；
S1053b, if so, then sending the instantaneous oil consumption to the instrument board of vehicle to be shown.
Wherein, default speed lower limit can also be set according to the concrete model of vehicle, for example, default speed
Lower limit is 3km/h, then, the display of instantaneous oil consumption is only just carried out when speed is more than 3km/h, by limiting vehicle speed value, if
Speed is less than 3km/h, then does not show instantaneous oil consumption, can reduce identification risk of errors of the vehicle to speed under lower-speed state.
In addition, as the third optional embodiment, referring to Fig. 4, in step S105, it is described by the instantaneous oil consumption
Send to vehicle instrument board to be shown the step of can also include：
S1051c, judges whether the instantaneous oil consumption is 0；
S1051c, if so, then showing default picture in the instrument board of vehicle.
Wherein, default picture can be -- .-L/100km, i.e., when without instantaneous oil consumption, directly display -- .-L/
100km, further avoids the misunderstanding of user.
It is pointed out that for above-mentioned three kinds of optional embodiments, in the specific implementation, both can only select wherein
A kind of embodiment is implemented, and can also combine two of which or three kinds and be implemented, is not limited herein.
Referring to Fig. 5, being based on same inventive concept, second embodiment of the invention proposes that instantaneous oil consumption calculates display system,
Including：
First acquisition module 10, for obtaining the oil consumption umber of pulse of EFI ECU in the first preset time；
Second acquisition module 20, for obtaining operating range of the vehicle in the second preset time；
First computing module 30, for calculating EFI ECU in first preset time according to the oil consumption umber of pulse
Distributive value；
Second computing module 40, for being calculated according to the distributive value and the operating range in second preset time
The instantaneous oil consumption of vehicle；
Display module 50 is sent, for the instantaneous oil consumption to be shown in the instrument board of vehicle.
In the present embodiment, first computing module 30 calculates the distributive value IFC using the following formula：
IFC=IFCP × FPP；
Wherein, the oil consumption umber of pulse that IFCP is EFI ECU in the first preset time got, FPP are each pulse generation
The distributive value of table.
In the present embodiment, second computing module 40 calculates the instantaneous oil consumption AFEt using the following formula：
Wherein, △ StThe operating range for being the vehicle that gets in the second preset time, t for described second it is default when
Between.
In the present embodiment, first preset time and second preset time are equal.
In the present embodiment, the transmission display module 50 is specifically used for：
Whether the instantaneous oil consumption for judging to calculate exceedes default upper limit value；
If it is not, then the instantaneous oil consumption is sent to the instrument board of vehicle to be shown；
If so, then carry out showing the upper limit value in the instrument board of vehicle.
In the present embodiment, the transmission display module 50 is additionally operable to：
Obtain the current speed of vehicle；
Judge whether the speed is more than default speed lower limit；
If so, then the instantaneous oil consumption is sent to the instrument board of vehicle to be shown.
In the present embodiment, the transmission display module 50 is additionally operable to：
Judge whether the instantaneous oil consumption is 0；
If so, then default picture is shown in the instrument board of vehicle.
The instantaneous oil consumption that the embodiment of the present invention proposes calculates the technical characteristic and technique effect and present invention reality of display system
The method for applying example proposition is identical, and it will not be described here.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment
Put.
The more specifically example (non-exhaustive list) of computer-readable medium includes following：Connected up with one or more
Electrical connection section (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can be for example by carrying out optical scanner to paper or other media, then into edlin, interpretation or if necessary with it
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, have suitable combinational logic gate circuit application-specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
Necessarily refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (10)
1. a kind of instantaneous oil consumption calculates display methods, it is characterised in that including：
Obtain the oil consumption umber of pulse of EFI ECU in the first preset time；
Obtain operating range of the vehicle in the second preset time；
The distributive value of EFI ECU in first preset time is calculated according to the oil consumption umber of pulse；
The instantaneous oil consumption of vehicle in second preset time is calculated according to the distributive value and the operating range；
The instantaneous oil consumption is sent to the instrument board of vehicle to be shown.
2. instantaneous oil consumption according to claim 1 calculates display methods, it is characterised in that described according to the oil consumption pulse
Number was calculated in the step of distributive value of EFI ECU in first preset time, and the distributive value is calculated using the following formula
IFC：
IFC=IFCP × FPP；
Wherein, the oil consumption umber of pulse that IFCP is EFI ECU in the first preset time got, FPP are what each pulse represented
Distributive value.
3. instantaneous oil consumption according to claim 2 calculates display methods, it is characterised in that it is described according to the distributive value and
The operating range was calculated in the step of instantaneous oil consumption of vehicle in second preset time, calculated using the following formula described in
Instantaneous oil consumption AFEt：
<mrow>
<mi>A</mi>
<mi>F</mi>
<mi>E</mi>
<mi>t</mi>
<mo>=</mo>
<mfrac>
<mrow>
<msubsup>
<mi>&Sigma;</mi>
<mn>0</mn>
<mi>t</mi>
</msubsup>
<mi>I</mi>
<mi>F</mi>
<mi>C</mi>
</mrow>
<mrow>
<msub>
<mi>&Delta;s</mi>
<mi>t</mi>
</msub>
</mrow>
</mfrac>
<mo>&times;</mo>
<mn>100</mn>
<mo>;</mo>
</mrow>
Wherein, △ StThe operating range for being the vehicle that gets in the second preset time, t is second preset time.
4. instantaneous oil consumption according to claim 3 calculates display methods, it is characterised in that first preset time and institute
It is equal to state the second preset time.
5. instantaneous oil consumption according to claim 1 calculates display methods, it is characterised in that described to send out the instantaneous oil consumption
The step of instrument board to vehicle is to be shown is sent to include：
Whether the instantaneous oil consumption for judging to calculate exceedes default upper limit value；
If it is not, then the instantaneous oil consumption is sent to the instrument board of vehicle to be shown；
If so, then carry out showing the upper limit value in the instrument board of vehicle.
6. instantaneous oil consumption according to claim 1 calculates display methods, it is characterised in that described to send out the instantaneous oil consumption
The step of instrument board to vehicle is to be shown is sent to include：
Obtain the current speed of vehicle；
Judge whether the speed is more than default speed lower limit；
If so, then the instantaneous oil consumption is sent to the instrument board of vehicle to be shown.
7. instantaneous oil consumption according to claim 1 calculates display methods, it is characterised in that described to send out the instantaneous oil consumption
The step of instrument board to vehicle is to be shown is sent to include：
Judge whether the instantaneous oil consumption is 0；
If so, then default picture is shown in the instrument board of vehicle.
8. a kind of instantaneous oil consumption calculates display system, it is characterised in that including：
First acquisition module, for obtaining the oil consumption umber of pulse of EFI ECU in the first preset time；
Second acquisition module, for obtaining operating range of the vehicle in the second preset time；
First computing module, for calculating the distributive value of EFI ECU in first preset time according to the oil consumption umber of pulse；
Second computing module, for calculating vehicle in second preset time according to the distributive value and the operating range
Instantaneous oil consumption；
Display module is sent, for the instantaneous oil consumption to be shown in the instrument board of vehicle.
9. instantaneous oil consumption according to claim 8 calculates display system, it is characterised in that first computing module uses
The following formula calculates the distributive value IFC：
IFC=IFCP × FPP；
Wherein, the oil consumption umber of pulse that IFCP is EFI ECU in the first preset time got, FPP are what each pulse represented
Distributive value.
10. instantaneous oil consumption according to claim 9 calculates display system, it is characterised in that second computing module is adopted
The instantaneous oil consumption AFEt is calculated with the following formula：
<mrow>
<mi>A</mi>
<mi>F</mi>
<mi>E</mi>
<mi>t</mi>
<mo>=</mo>
<mfrac>
<mrow>
<msubsup>
<mi>&Sigma;</mi>
<mn>0</mn>
<mi>t</mi>
</msubsup>
<mi>I</mi>
<mi>F</mi>
<mi>C</mi>
</mrow>
<mrow>
<msub>
<mi>&Delta;s</mi>
<mi>t</mi>
</msub>
</mrow>
</mfrac>
<mo>&times;</mo>
<mn>100</mn>
<mo>;</mo>
</mrow>
Wherein, △ StThe operating range for being the vehicle that gets in the second preset time, t is second preset time.
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Cited By (1)
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| CN109115997A (en) * | 2018-08-21 | 2019-01-01 | 上海博泰悦臻网络技术服务有限公司 | oil quality monitoring method and server |
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| 付百学，胡胜海: "基于喷油脉宽测试法的汽车油耗智能测试技术", 《农业工程学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115997A (en) * | 2018-08-21 | 2019-01-01 | 上海博泰悦臻网络技术服务有限公司 | oil quality monitoring method and server |
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