CN110108499A - A kind of automatic transmission shift rule integrated evaluating method - Google Patents
A kind of automatic transmission shift rule integrated evaluating method Download PDFInfo
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- CN110108499A CN110108499A CN201910342395.6A CN201910342395A CN110108499A CN 110108499 A CN110108499 A CN 110108499A CN 201910342395 A CN201910342395 A CN 201910342395A CN 110108499 A CN110108499 A CN 110108499A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000011156 evaluation Methods 0.000 claims abstract description 25
- 239000000446 fuel Substances 0.000 claims abstract description 24
- 230000001133 acceleration Effects 0.000 claims abstract description 17
- 238000005259 measurement Methods 0.000 claims 1
- 238000011158 quantitative evaluation Methods 0.000 abstract description 3
- 238000012512 characterization method Methods 0.000 abstract 1
- 238000013139 quantization Methods 0.000 abstract 1
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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Abstract
The invention discloses automatic transmission shift rule integrated evaluating methods, and the Comprehensive quantitative evaluation of economy and dynamic property is carried out to automatic transmission shift rule.The method includes the steps of: 1. measuring the specific fuel consumption and vehicle acceleration of each speed；2. formulating Best Economy shift schedule and best power performance shift schedule；3. calculating the basic parameter of quantization evaluation index；4. calculating the economic index and power index of shift schedule, the economy and dynamic property quantitatively evaluating of entire shift schedule are completed.The index value that the present invention calculates is smaller, and characterization vehicle respective performances are more excellent, can be used as the important indicator of evaluation automatic transmission shift rule superiority and inferiority, to guarantee that vehicle performance provides important evidence.
Description
Technical field
The invention belongs to passenger car control technology of automatic transmission fields, and it is comprehensive to be related to a kind of automatic transmission shift rule
Evaluation method, and in particular to a kind of economy of automatic transmission shift rule and the Comprehensive quantitative evaluation method of dynamic property.
Background technique
Automatic transmission has many advantages, such as that self shifter, driver behavior are simple, in passenger car field using more and more extensive.
The reasonability of gear selection has a great impact to the performance of vehicle, and technology relevant to the work is the evaluation of shift schedule.
Shift schedule refers to the rule that the adjacent two gear self shifter moment changes with control parameter in vehicle operation, i.e. shift moment
Relationship between gear and control parameter, what is be widely used at present is two parameter control methods of speed and accelerator pedal aperture,
I.e. automatic transmission selects corresponding gear according to the case where speed and accelerator pedal aperture.The economy of shift schedule and vehicle
Closely related with dynamic property, the economy of shift schedule and the superiority and inferiority of dynamic property are the important performance indicators of vehicle.And it changes at present
The quantitatively evaluating rare research of the economy and dynamic property of rule is kept off, therefore, it is urgent to provide a kind of economy of shift schedule
With the Comprehensive quantitative evaluation method of dynamic property.
Summary of the invention
It is of the invention in view of the rare research of evaluation method of the economy and dynamic property of current automatic transmission shift rule
Purpose is to provide a kind of automatic transmission shift rule integrated evaluating method, for evaluating automatic transmission shift rule economy
With the superiority and inferiority of dynamic property.
The purpose of the present invention is achieved through the following technical solutions:
A kind of integrated evaluating method of automatic transmission shift rule, comprising the following steps:
1. measuring different gears, the specific fuel consumption of each speed point under different accelerator pedal aperture and vehicle respectively to accelerate
Degree；
2. the feature of the specific fuel consumption 1. measured according to step formulates Best Economy shift schedule；
3. the characteristic of the acceleration 1. measured according to step formulates best power performance shift schedule；
4. 3. best power performance shift schedule that the Best Economy shift schedule and step that are 2. measured according to step measure
Calculate the benchmark for being used for quantitatively evaluating, comprising: Best Economy parameter, most bad dynamic property parameter, best power performance parameter, most bad
Economy parameter；
5. according to the basic parameter of 4. quantitatively evaluating that step calculates, calculate shift schedule to be evaluated economic index and
Power index.
Further, the step 1. in, the specific fuel consumption and vehicle acceleration of vehicle are to be opened respectively with gear, accelerator pedal
Degree and speed three dimensions measure.
Further, the step 2. in, take the intersection point conduct of identical accelerator pedal aperture, adjacent gear specific fuel consumption curve
Ideal economy shifting points；If taking higher gear speed smallest point in adjacent gear to be used as ideal economy without crosspoint
Shifting points.
Further, the step 3. in, take the intersection point conduct of identical accelerator pedal aperture, adjacent gear accelerating curve
Ideal dynamic property shifting points；If taking in adjacent gear compared with low-grade location speed maximum point without crosspoint as ideal power
Property shifting points.
Further, the step 5. in, the kinetic and economic indexes of automatic transmission shift rule are by as follows
What formula was calculated:
The economic index calculation formula of quasi- evaluation shift schedule:
The power index calculation formula of quasi- evaluation shift schedule:
The power index and economic index value of shift schedule to be evaluated are smaller, and it is more excellent to characterize its corresponding performance.
The invention has the following advantages:
Evaluation method provided by the invention can pass through formula with the economy and dynamic property of the entire shift schedule of quantitatively evaluating
The index value of calculating is smaller, and corresponding performance is more excellent, can be used as the important indicator of evaluation automatic transmission shift rule superiority and inferiority,
To guarantee that vehicle performance provides important evidence.
Detailed description of the invention
Fig. 1 show heretofore described ideal economy shifting points；
Fig. 2 show heretofore described ideal dynamic property shifting points；
Fig. 3 show heretofore described Best Economy shift schedule curve graph；
Fig. 4 show heretofore described optimal movement shift schedule curve graph；
Fig. 5 show heretofore described Best Economy and most bad dynamic property parameter；
Fig. 6 show heretofore described best power performance and most bad economy parameter；
Fig. 7 show heretofore described quasi- evaluation dynamic property and most bad economy parameter；
Fig. 8 show heretofore described economy and dynamic property quantum chemical method result.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
A kind of automatic transmission shift rule integrated evaluating method provided by the invention, respectively according to specific fuel consumption minimum and plus
The maximum principle of speed forms Best Economy shift schedule and best power performance shift schedule, with optimal economic, power shifting
The reference parameter of economy and dynamic property quantitatively evaluating is calculated based on rule, while calculating the economy of quasi- evaluation shift schedule
With dynamic property parameter, the quantitatively evaluating of the dynamic property to shift schedule economy sum is formed using index calculation formula.
A kind of automatic transmission shift rule integrated evaluating method, steps are as follows:
A. vehicle Standing start, fixed gear, fixed accelerator pedal aperture measure the specific fuel consumption and vehicle of each speed point
Acceleration；
B. repeat step a, obtain different gears, different accelerator pedal aperture each speed point specific fuel consumption and vehicle add
Speed；
C. the specific fuel consumption of difference gear obtained in step b, each speed point of different accelerator pedal apertures is made one
On figure, take identical accelerator pedal aperture, adjacent gear specific fuel consumption curve intersection point as ideal economy shifting points, no friendship
Compared with high gear speed smallest point as ideal economy shifting points in the adjacent gear of crunode, by the economy of identical adjacent gear
Shifting points are linked to be line and form Best Economy shift schedule；
D. the acceleration of difference gear obtained in step b, each speed point of different accelerator pedal apertures is made one
On figure, take identical accelerator pedal aperture, adjacent gear accelerating curve intersection point as ideal dynamic property shifting points, no friendship
Crunode takes in adjacent gear compared with low gear speed maximum point as ideal dynamic property shifting points, by the power of identical adjacent gear
Property shifting points be linked to be line formed best power performance shift schedule；
E. vehicle Standing start fixes accelerator pedal aperture, and Best Economy shift schedule obtained in optional step c is changed
Gear, accelerates to selected speed.The average specific fuel consumption of accelerator is calculated as Optimum Economic parameter, abbreviation ECOBest；It calculates
The acceleration time of accelerator is used as most bad dynamic property parameter, abbreviation DYNWorst。
F. vehicle Standing start fixes accelerator pedal aperture, and best power performance shift schedule obtained in optional step d is changed
Gear, accelerates to selected speed.The acceleration time of accelerator is calculated as best power performance parameter, abbreviation DYNBest；It calculates and adds
The average specific fuel consumption of fast process is used as most bad economy parameter, abbreviation ECOWorst；
G. vehicle Standing start, fixed accelerator pedal aperture select the shift schedule of quasi- evaluation, accelerate to selected speed.
The acceleration time of accelerator is calculated as dynamic property parameter to be evaluated, abbreviation DYNNow；Calculate the average specific fuel consumption of accelerator
As economy parameter to be evaluated, abbreviation ECONow；
H. intend the economic index calculation formula of evaluation shift schedule:
I. intend the power index calculation formula of evaluation shift schedule:
J. repeat step f to step h, obtain the quasi- evaluation shift schedule of different accelerator pedal apertures economic index and
The index value of power index, power index and economic index is smaller, and it is more excellent to characterize its corresponding performance, and completion is entirely changed
Keep off the economy and dynamic property quantitatively evaluating of rule.
Embodiment 1
A. vehicle Standing start, fixed gear are 2 gears, and fixed accelerator pedal aperture is 30%, measure each speed point
Specific fuel consumption and vehicle acceleration；
B. vehicle Standing start, fixed gear are 3 gears, and fixed accelerator pedal aperture is 30%, measure each speed point
Specific fuel consumption and vehicle acceleration；
C. the specific fuel consumption of the gear of 30% accelerator pedal aperture 2 obtained in a, b and the 3 each speeds of gear is made on a figure,
Take identical accelerator pedal aperture, adjacent gear specific fuel consumption curve intersection point as ideal economy shifting points, no crosspoint phase
Compared with high gear speed smallest point as ideal economy shifting points in adjacent gear, as shown in Fig. 1；
D. the vehicle acceleration of the gear of 30% accelerator pedal aperture 2 obtained in a, b and the 3 each speeds of gear is made in a figure
On, take identical accelerator pedal aperture, adjacent gear accelerating curve intersection point as ideal dynamic property shifting points, no crosspoint
It takes in adjacent gear compared with low gear speed maximum point as ideal dynamic property shifting points, as shown in Fig. 2；
E. repeat a, b, c the step of, obtain accelerator pedal aperture be 20%, 30%, 40%, 50%, 60%, 70%,
80%, the ideal economy shifting points of 90%, 100% each gear are vertical sit with accelerator pedal using speed as abscissa
The shifting points of each gear are linked to be curve and form Best Economy shift schedule, as shown in Fig. 3 by mark；
F. repeat a, b, d the step of, obtain accelerator pedal aperture be 20%, 30%, 40%, 50%, 60%, 70%,
80%, the ideal dynamic property shifting points of 90%, 100% each gear are vertical sit with accelerator pedal using speed as abscissa
The shifting points of each gear are linked to be curve and form best power performance shift schedule, as shown in Fig. 4 by mark；
G. vehicle Standing start, fixed accelerator pedal aperture select the shift of Best Economy shift schedule obtained in e,
Accelerating to current accelerator pedal aperture can reach the 90% of max. speed.The average specific fuel consumption of accelerator is calculated as optimal warp
Ji property parameter, abbreviation ECOBest；The acceleration time for calculating accelerator is used as most bad dynamic property parameter, abbreviation DYNWorst。
H. repeat g the step of, obtain accelerator pedal aperture be 20%, 30%, 40%, 50%, 60%, 70%, 80%,
90%, 100% Optimum Economic parameter and most bad dynamic property parameter, as shown in Figure 5.
I. vehicle Standing start, fixed accelerator pedal aperture select the shift of best power performance shift schedule obtained in f,
Accelerate to identical speed in step g.The acceleration time of accelerator is calculated as best power performance parameter, abbreviation DYNBest；Meter
The average specific fuel consumption for calculating accelerator is used as most bad economy parameter, abbreviation ECOWorst；
J. repeat i the step of, obtain accelerator pedal aperture be 20%, 30%, 40%, 50%, 60%, 70%, 80%,
90%, 100% optimal dynamic property parameter and most bad economy parameter, as shown in Figure 6.
K. vehicle Standing start, fixed accelerator pedal aperture select the shift schedule of quasi- evaluation, accelerate to phase in step g
Same speed.The acceleration time of accelerator is calculated as quasi- evaluation dynamic property parameter, abbreviation DYNNow；Calculate the flat of accelerator
Equal specific fuel consumption is as quasi- evaluation economy parameter, abbreviation ECONow；
L. repeat k the step of, obtain accelerator pedal aperture be 20%, 30%, 40%, 50%, 60%, 70%, 80%,
90%, the dynamic property parameter of 100% quasi- evaluation and evaluation economy parameter, as shown in Figure 7；
M. intend the economic index calculation formula of evaluation shift schedule:
N. intend the power index calculation formula of evaluation shift schedule:
O. the step of Repeated m, n obtains the economic index of the quasi- evaluation shift schedule of different accelerator pedal apertures and moves
Power index, as shown in Figure 8；The index value of power index and economic index is smaller, and it is more excellent to characterize its corresponding performance.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of integrated evaluating method of automatic transmission shift rule, which comprises the following steps:
1. measuring the specific fuel consumption and vehicle acceleration of different gears, each speed point under different accelerator pedal aperture respectively；
2. the feature of the specific fuel consumption 1. measured according to step formulates Best Economy shift schedule；
3. the characteristic of the acceleration 1. measured according to step formulates best power performance shift schedule；
4. 3. best power performance shift schedule that the Best Economy shift schedule and step that are 2. measured according to step measure calculates
Benchmark for quantitatively evaluating, comprising: Best Economy parameter, most bad dynamic property parameter, best power performance parameter, most bad economy
Property parameter；
5. calculating the economic index and power of shift schedule to be evaluated according to the basic parameter of 4. quantitatively evaluating that step calculates
Property index.
2. a kind of integrated evaluating method of automatic transmission shift rule according to claim 1, which is characterized in that described
Step 1. in, the specific fuel consumption and vehicle acceleration of vehicle be respectively with three gear, accelerator pedal aperture and speed dimensions come into
Row measurement.
3. a kind of integrated evaluating method of automatic transmission shift rule according to claim 1, which is characterized in that described
Step 2. in, take identical accelerator pedal aperture, adjacent gear specific fuel consumption curve intersection point as ideal economy shifting points；If
Without crosspoint, then higher gear speed smallest point in adjacent gear is taken to be used as ideal economic shifting points.
4. a kind of integrated evaluating method of automatic transmission shift rule according to claim 1, which is characterized in that described
Step 3. in, take identical accelerator pedal aperture, adjacent gear accelerating curve intersection point as ideal dynamic property shifting points；If
Without crosspoint, then take in adjacent gear compared with low-grade location speed maximum point as ideal dynamic property shifting points.
5. a kind of integrated evaluating method of automatic transmission shift rule according to claim 1, which is characterized in that described
Step 5. in, the kinetic and economic indexes of automatic transmission shift rule are calculated by following formula:
The economic index calculation formula of quasi- evaluation shift schedule:
The power index calculation formula of quasi- evaluation shift schedule:
6. a kind of integrated evaluating method of automatic transmission shift rule according to claim 5, it is characterised in that: to be evaluated
The power index and economic index value of valence shift schedule are smaller, and it is more excellent to characterize its corresponding performance.
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| CN114863587A (en) * | 2022-04-29 | 2022-08-05 | 一汽奔腾轿车有限公司 | Method for offline acquisition and evaluation of gear shifting rule of hydraulic mechanical automatic transmission |
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Effective date of registration: 20231218 Address after: No. 8899, Dongfeng Street, Changchun automobile economic and Technological Development Zone, Jilin Province, 130011 Patentee after: China Faw Co.,Ltd. Patentee after: CHANGCHUN AUTOMOTIVE TEST CENTER Co.,Ltd. Address before: No. 8899, Dongfeng Street, Changchun automobile economic and Technological Development Zone, Changchun City, Jilin Province, 130011 Patentee before: China Faw Co.,Ltd. |