CN107503850A - Engine test bench characteristic automatic dialing unit and automatic selecting method based on load-carrying - Google Patents
Engine test bench characteristic automatic dialing unit and automatic selecting method based on load-carrying Download PDFInfo
- Publication number
- CN107503850A CN107503850A CN201710742777.9A CN201710742777A CN107503850A CN 107503850 A CN107503850 A CN 107503850A CN 201710742777 A CN201710742777 A CN 201710742777A CN 107503850 A CN107503850 A CN 107503850A
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- China
- Prior art keywords
- vehicle
- load
- displacement
- engine ecu
- engine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
- F02D2200/501—Vehicle speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/18—Control of the engine output torque
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Testing Of Engines (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a kind of engine test bench characteristic automatic dialing unit and automatic selecting method based on load-carrying, its device includes vehicle speed sensor, the vehicle speed sensor electrically connects with Engine ECU, it is characterized in that, also include displacement transducer, institute's displacement sensors are electrically connected with the Engine ECU, and institute's displacement sensors are arranged on vehicle suspension, for detecting the displacement of the flexible member in the vehicle suspension during vehicle load.When Engine ECU detects that vehicle remains static, receive the deflection of flexible member on the suspension that detects of displacement transducer, judge vehicle loading capacity how much, then, the power output of adjust automatically engine, so that vehicle operates in most fuel-efficient pattern.
Description
Technical field
The present invention relates to technical field of vehicle, specifically, is related to a kind of engine test bench characteristic based on load-carrying and selects automatically
Select device and automatic selecting method.
Background technology
Vehicle run when, it is necessary to according to loading capacity adjust engine power output so that vehicle operate in it is most fuel-efficient
Pattern.
At present, driver rule of thumb manually selects the switch position in driver's cabin, the corresponding heavy duty of driving switch,
Three kinds of middle load, underloading different modes, still, subjective sensation is bigger when driver selects, it is possible to lacks experience, can not judge
Suitable gear, vehicle can not be made to operate in most fuel-efficient pattern.
The content of the invention
First technical problem to be solved by this invention be：A kind of engine test bench characteristic based on load-carrying is provided to select automatically
Device is selected, engine test bench characteristic data are automatically selected according to vehicle load, vehicle is operated in most fuel-efficient pattern.
Second technical problem to be solved by this invention be：A kind of engine test bench characteristic based on load-carrying is provided to select automatically
Selection method, so that vehicle operates in most fuel-efficient pattern.
To solve above-mentioned first technical problem, the technical scheme is that：
Engine test bench characteristic automatic dialing unit based on load-carrying includes：Vehicle speed sensor, the vehicle speed sensor and hair
Motivation ECU is electrically connected, it is characterised in that is also electrically connected including displacement transducer, institute's displacement sensors with the Engine ECU
Connect, institute's displacement sensors are arranged on vehicle suspension, for detecting the flexible member in the vehicle suspension during vehicle load
Displacement.
To solve above-mentioned second technical problem, the technical scheme is that：
The method for automatically selecting province's oil circuit breaker, comprises the following steps：
After S10, vehicle load, the speed of the vehicle speed sensor detection vehicle, and the velocity information of detection is sent to
The Engine ECU；
S20, institute displacement sensors detect the displacement of the flexible member in the vehicle suspension, and by the displacement of detection
Information is sent to the Engine ECU；
S30, the Engine ECU judge whether vehicle remains static according to the velocity information of acquisition, if vehicle
Speed is equal to zero, shows that vehicle remains static, then the Engine ECU receives the displacement letter that institute's displacement sensors are sent
Breath；If car speed is more than zero, the displacement information that the Engine ECU shielding institute displacement sensors are sent；
S40, when setting unloaded the flexible member elemental height as H0, institute's displacement sensors measure described after load-carrying
The load-carrying of flexible member is highly H1；The displacement information that the Engine ECU is sent according to institute's displacement sensors presses following public affairs
Formula calculates and judges the load condition of vehicle, the displacement △ H=H0-H1 of flexible member, the deflection S=△ H/ of flexible member
H0*100%, if the deflection S ＞ a of the flexible member, judge that vehicle is in heavy duty, the Engine ECU is selected automatically
Select heavy-duty engine external characteristics data output；If b ＜ S ＜ a, judge that vehicle is in middle load, the Engine ECU is selected automatically
Select middle load engine test bench characteristic data output；If S ＜ b, judge that vehicle is in underloading, the Engine ECU automatically selects
Underloading engine test bench characteristic data output, wherein 0 ＜ b ＜ a ＜ 1.
Preferably, a=60%.
Preferably, b=10%.
After employing above-mentioned technical proposal, the beneficial effects of the invention are as follows：
Because the engine test bench characteristic automatic dialing unit based on load-carrying of the present invention includes what is electrically connected with Engine ECU
Vehicle speed sensor and displacement transducer, displacement transducer are arranged on vehicle suspension；If vehicle speed sensor detects speed and is
Zero, vehicle remains static, then Engine ECU receives the displacement information of the flexible member of the suspension of displacement transducer detection,
Engine ECU judges the loading capacity of vehicle according to the displacement of flexible member, and defeated according to the power of loading capacity adjustment engine
Go out, so that vehicle is in most fuel-efficient pattern.Original driving switch is adjusted without going through driver to select the power of engine
Output, original switch position is eliminated, and adjusted accurate reliable.
Brief description of the drawings
Fig. 1 is the fundamental diagram of the engine test bench characteristic automatic dialing unit of the invention based on load-carrying；
The structural representation of leaf spring when Fig. 2 is vehicle zero load；
The structural representation of leaf spring when Fig. 3 is vehicle load.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in figure 1, a kind of engine test bench characteristic automatic dialing unit based on load-carrying, including：Engine ECU, speed
Sensor and displacement transducer, vehicle speed sensor, displacement transducer electrically connect with Engine ECU respectively, displacement transducer installation
In on vehicle suspension, the displacement of the flexible member for detecting suspension, leaf spring, air spring or spiral bullet are such as detected
The displacement of spring.
As shown in Fig. 2 H0 represents the height of leaf spring during vehicle zero load.As shown in figure 3, H1 represents leaf spring during vehicle load
Highly, △ H represent the displacement of leaf spring during vehicle load, △ H=H0-H1.The deflection for defining leaf spring is S, S=△ H/H0*
100%.
By taking leaf spring as an example, the engine test bench characteristic automatic selecting method of the invention based on load-carrying is as follows：
S10, vehicle speed sensor detection vehicle speed, and the velocity information of detection is sent to Engine ECU；
S20, displacement transducer detection leaf spring displacement, and the displacement information of the leaf spring of detection is sent to engine
ECU；
S30, Engine ECU judge whether vehicle remains static according to the velocity information of acquisition, if car speed
Equal to zero, show that vehicle remains static, then Engine ECU receives the displacement information that displacement transducer is sent；If vehicle
Speed is more than zero, shows that vehicle is in transport condition, then the displacement information that Engine ECU shielding displacement transducer is sent；
The displacement information that S40, Engine ECU are sent according to displacement transducer judges the loading condition of vehicle, if leaf spring
Deflection S be more than a, show vehicle heavy duty, then Engine ECU automatically selects heavy-duty engine external characteristics data output；If
The deflection S of leaf spring is more than b and is less than a, shows to carry in vehicle, then Engine ECU automatically selects middle load engine test bench characteristic number
According to output；If the deflection S of leaf spring is less than b, show vehicle underloading, then it is outer special to automatically select underloading engine for Engine ECU
Property data output.
Engine ECU automatically adjusts the power output of engine, so that the vehicle such as cargo vehicle according to the loading capacity of vehicle
In most fuel-efficient pattern, operating cost is reduced.
Wherein, 0 ＜ b ＜ a ＜ 1, it is preferred that a=60%, b=10%, a, b numerical value are set in Engine ECU in advance
Fixed, a, b are not limited to a certain numerical value, can be made adjustment according to being actually needed in Engine ECU.
Heavy-duty engine external characteristics data, middle load engine test bench characteristic data and underloading engine test bench characteristic data exist in advance
Set in Engine ECU.
If car speed is more than zero, because road jolts, the displacement of the flexible member of suspension changes, can be to hair
Motivation ECU judgement is interfered, and underloading such as is judged as into middle load, therefore when vehicle speed sensor detects that car speed is more than zero,
Engine ECU shields displacement information, avoids Engine ECU erroneous judgement.
It is above-mentioned only by taking leaf spring as an example, explanation of being made explanations to the present invention, in practical application, it is not limited to leaf spring, also
Suitable for flexible members such as helical spring, air springs.
Citing described above for best mode for carrying out the invention, wherein the part do not addressed in detail is that this area is common
The common knowledge of technical staff.Protection scope of the present invention is defined by the content of claim, any technology based on the present invention
The equivalent transformation for enlightening and carrying out, also within protection scope of the present invention.
Claims (4)
1. the engine test bench characteristic automatic dialing unit based on load-carrying, including：Vehicle speed sensor, the vehicle speed sensor is with starting
Machine ECU is electrically connected, it is characterised in that also electrically connected including displacement transducer, institute's displacement sensors with the Engine ECU,
Institute's displacement sensors are arranged on vehicle suspension, for detecting the position of the flexible member in the vehicle suspension during vehicle load
Shifting amount.
2. the automatic selecting method of the engine test bench characteristic automatic dialing unit based on load-carrying as claimed in claim 1, it is special
Sign is, comprises the following steps：
After S10, vehicle load, the speed of vehicle speed sensor detection vehicle, and the velocity information of detection is sent to described
Engine ECU；
S20, institute displacement sensors detect the displacement of the flexible member in the vehicle suspension, and by the displacement information of detection
It is sent to the Engine ECU；
S30, the Engine ECU judge whether vehicle remains static according to the velocity information of acquisition, if car speed
Equal to zero, show that vehicle remains static, then the Engine ECU receives the displacement information that institute's displacement sensors are sent；
If car speed is more than zero, the displacement information that the Engine ECU shielding institute displacement sensors are sent；
S40, when setting unloaded the flexible member elemental height as H0, institute's displacement sensors measure the elasticity after load-carrying
The load-carrying of element is highly H1；The displacement information that the Engine ECU is sent according to institute's displacement sensors is counted as follows
Calculate and judge the load condition of vehicle, the displacement △ H=H0-H1 of flexible member, the deflection S=△ H/H0* of flexible member
100%, if the deflection S ＞ a of the flexible member, judge that vehicle is in heavy duty, the Engine ECU automatically selects weight
Carry engine test bench characteristic data output；If b ＜ S ＜ a, judge that vehicle is in middle load, during the Engine ECU automatically selects
Carry engine test bench characteristic data output；If S ＜ b, judge that vehicle is in underloading, the Engine ECU automatically selects underloading
Engine test bench characteristic data output, wherein 0 ＜ b ＜ a ＜ 1.
3. the engine test bench characteristic automatic selecting method based on load-carrying as claimed in claim 2, it is characterised in that a=60%.
4. the engine test bench characteristic automatic selecting method based on load-carrying as claimed in claim 3, it is characterised in that b=10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710742777.9A CN107503850A (en) | 2017-08-25 | 2017-08-25 | Engine test bench characteristic automatic dialing unit and automatic selecting method based on load-carrying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710742777.9A CN107503850A (en) | 2017-08-25 | 2017-08-25 | Engine test bench characteristic automatic dialing unit and automatic selecting method based on load-carrying |
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| Publication Number | Publication Date |
|---|---|
| CN107503850A true CN107503850A (en) | 2017-12-22 |
Family
ID=60693681
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710742777.9A Pending CN107503850A (en) | 2017-08-25 | 2017-08-25 | Engine test bench characteristic automatic dialing unit and automatic selecting method based on load-carrying |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718743A (en) * | 2022-04-22 | 2022-07-08 | 广西玉柴机器股份有限公司 | Method for carrying out intelligent driving auxiliary control according to vehicle load |
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| JP2002221442A (en) * | 2001-01-24 | 2002-08-09 | Aisin Seiki Co Ltd | System for estimating weight of vehicle |
| CN101608580A (en) * | 2009-07-27 | 2009-12-23 | 三一汽车制造有限公司 | A kind of multi-state control system of engine and controlling method thereof |
| CN201890152U (en) * | 2010-11-29 | 2011-07-06 | 北汽福田汽车股份有限公司 | Automatic load sensing control system and vehicle comprising same |
| CN105115578A (en) * | 2015-09-19 | 2015-12-02 | 方昌銮 | Method of detecting carrying capacity of vehicle by measuring deformation of steel plate, and measuring system |
| CN105332805A (en) * | 2014-08-13 | 2016-02-17 | 中联重科股份有限公司 | Energy-saving control system of vehicle engine, method, device and engineering vehicle |
| KR20170069566A (en) * | 2015-12-11 | 2017-06-21 | 현대자동차주식회사 | Control method for improving fuel-efficiency of vehicle |
-
2017
- 2017-08-25 CN CN201710742777.9A patent/CN107503850A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002221442A (en) * | 2001-01-24 | 2002-08-09 | Aisin Seiki Co Ltd | System for estimating weight of vehicle |
| CN101608580A (en) * | 2009-07-27 | 2009-12-23 | 三一汽车制造有限公司 | A kind of multi-state control system of engine and controlling method thereof |
| CN201890152U (en) * | 2010-11-29 | 2011-07-06 | 北汽福田汽车股份有限公司 | Automatic load sensing control system and vehicle comprising same |
| CN105332805A (en) * | 2014-08-13 | 2016-02-17 | 中联重科股份有限公司 | Energy-saving control system of vehicle engine, method, device and engineering vehicle |
| CN105115578A (en) * | 2015-09-19 | 2015-12-02 | 方昌銮 | Method of detecting carrying capacity of vehicle by measuring deformation of steel plate, and measuring system |
| KR20170069566A (en) * | 2015-12-11 | 2017-06-21 | 현대자동차주식회사 | Control method for improving fuel-efficiency of vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718743A (en) * | 2022-04-22 | 2022-07-08 | 广西玉柴机器股份有限公司 | Method for carrying out intelligent driving auxiliary control according to vehicle load |
| CN114718743B (en) * | 2022-04-22 | 2024-02-09 | 广西玉柴机器股份有限公司 | Method for performing intelligent driving auxiliary control according to vehicle load |
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Application publication date: 20171222 |