CN105857302B - A kind of driving behavior automatic optimization method - Google Patents
A kind of driving behavior automatic optimization method Download PDFInfo
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- CN105857302B CN105857302B CN201610251846.1A CN201610251846A CN105857302B CN 105857302 B CN105857302 B CN 105857302B CN 201610251846 A CN201610251846 A CN 201610251846A CN 105857302 B CN105857302 B CN 105857302B
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/84—Data processing systems or methods, management, administration
Abstract
The present invention relates to a kind of driving behavior automatic optimization methods, judge whether that bad steering behavior occurs, the bad steering behavior includes at least one of low gear with high, anxious acceleration and throttle shakiness, for bad steering behavior, according to corresponding control algolithm: when low gear with high driving behavior occurs, the maximum speed of the engine of vehicle being limited in default maximum speed value；When anxious acceleration driving behavior occurs, practical gas pedal value is limited, the gas pedal value exported, the gas pedal value of output is no more than corresponding practical gas pedal value in the case of normally travel, when the driving behavior of throttle shakiness occurs, control engine is worth corresponding engine torque value output power value according to the gas pedal of setting.Method of the invention is directly controlled from engine power output facet, and when bad steering behavior occurs in driver, active correction and optimization, fundamentally solve the problems, such as bad steering, improves drive safety and oil-saving effect.
Description
Technical field
The present invention relates to field of automobile electronic control, and in particular to a kind of driving behavior optimization with significant oil-saving effect
Method and system.
Background technique
It according to our statistics and analysis to a large amount of car operation datas, tracking to drivers up to ten thousand and visits, finds
Generally existing such as urgency accelerates, throttle is fluctuated, the undesirable driving behavior of low gear with high.Driving is pacified in these driving behaviors
Entirely, vehicle accessory, oil consumption etc. can generate certain negative effect, wherein suddenly step on, deep accelerator pedal, make in a short time
The anxious acceleration behavior that speed improves rapidly will not only greatly increase oil consumption, cause energy waste and environmental pollution, more exist serious
Security risk；Gas pedal driving behavior fluctuated will cause the fluctuation up and down of distributive value in driving procedure, to vehicle
Oil consumption generates biggish adverse effect；And low gear with high behavior be due to that cannot make vehicle be maintained at optimized rotating speed and velocity interval,
Fuel consumption is not only considerably increased, the damage that can not be repaired but will be caused to vehicle accessory.
Based on the above reality, similar device and method are developed in the prior art, such as Publication No. CN104890673A
A kind of energy-saving driving assist real-time prompt system, pass through the equipment such as speed probe, vehicle speed sensor, gear position sensor acquire
Signals of vehicles, and by mobile terminal display reminding advisory information, correct the improper driving behavior of driver in real time to reduce
Oil consumption.A kind of high Fuel consumption analysis method and apparatus based on shift behavior of Publication No. CN104809160A, according to pre- timing
Between interval acquisition automobile engine speed, speed and instantaneous oil consumption, judged according to the corresponding high oil consumption of instantaneous oil consumption bad
The generation of driving behavior, reminds when driver has occurred the high oil consumption generated due to bad steering behavior, to avoid bad
Driving behavior reduces oil consumption.These technologies realize the detection to high oil consumption by different judgment methods, and to driver
Bad steering behavior reminded and suggested, but these technologies be not able to achieve the automatic control to bad steering behavior and
Optimization is unable to reach the effect of fuel-economizing when driver ignores these promptings.
Summary of the invention
The present invention provides a kind of driving behavior automatic optimization methods, to solve to judge bad steering row in the prior art
The problem of only driver is reminded for after, is unable to reach oil-saving effect when driver ignores these promptings.
In order to solve the above technical problems, driving behavior automatic optimization method of the invention include: judge whether to occur it is bad
Driving behavior, the bad steering behavior include at least one of low gear with high, anxious acceleration and throttle shakiness, are driven for bad
Behavior is sailed, according to corresponding control algolithm: when low gear with high driving behavior occurs, the maximum speed of the engine of vehicle being limited
System is in default maximum speed value；When anxious acceleration driving behavior occurs, practical gas pedal value is limited, is exported
The gas pedal value of gas pedal value, output is no more than corresponding practical gas pedal value in the case of normally travel；It is oily when occurring
When door shakiness driving behavior, control engine is worth corresponding engine torque value output power value according to the gas pedal of setting,
Realize the optimal control to bad steering behavior.
To the deterministic process of gear locating for vehicle when the judgement generation low gear with high driving behavior are as follows: according to the vehicle of acquisition
Tire radius, base ratio, speed and transmitter revolving speed, calculate practical notch speed ratio, demarcate by practical notch speed ratio and in advance
Theoretical notch speed frequently compared with finding out with the actual deceleration of vehicle than immediate theoretical reduction ratio, the immediate theory subtracts
The corresponding gear of speed ratio is exactly gear locating for vehicle.
The calculation formula of the practical notch speed ratio are as follows: (2 π * n*radii*3.6)/(60* ν * ratio), wherein n is to start
Machine revolving speed, v are speed, and radii is tire radius, and ratio is base ratio.
The gas pedal value of the output is equal to the corresponding practical gas pedal value of maximum in the case of normally travel.
The anxious deterministic process for accelerating driving behavior are as follows: if gas pedal opening value is more than first to set within the unit time
Determine threshold value, then anxious acceleration driving behavior occurs.
The deterministic process of the throttle shakiness driving behavior are as follows: constant duration records gas pedal within the set time
Value, if the difference of the gas pedal initial value of any one gas pedal value and setting time is respectively less than the second given threshold,
Throttle shakiness driving behavior then occurs.
The gas pedal value set is gas pedal initial value.
The gas pedal value is gas pedal percentage, and the unit time is 10ms, and first given threshold is
2%.
The gas pedal value is gas pedal percentage, and the time interval is 10ms, and second given threshold is
2%.
It is respectively the 80% of vehicle motor maximum speed, 75% and that 2nd, 3,4 grade of engine, which presets maximum speed value,
70%.
Beneficial effects of the present invention: this method obtains vehicle inherent parameters and vehicle operating parameters, passes through analysis vehicle fortune
Row state recognition bad steering behavior, and corresponding control algolithm is formulated according to different driving behaviors: if low gear with high behavior
Limitation engine speed measure is then taken, is then started according to the amendment of corresponding algorithm optimization if anxious acceleration and the behavior of throttle shakiness
Mechanomotive force output control, to fundamentally realize the optimal control to bad steering behavior.Compared with prior art, of the invention
Method directly controlled from engine power output facet, the active correction and excellent when bad steering behavior occurs in driver
Change, fundamentally solves the problems, such as bad steering, improve drive safety and oil-saving effect.
In addition, the hardware platform that the present invention is relied on only needs to have CAN transmission-receiving function, therefore realization is simple and easy, no
Vehicle electric harness need to be changed, many vehicles can directly be used according to this method.
Detailed description of the invention
Fig. 1 is the structure principle chart of the driving behavior optimization system of the present embodiment；
Fig. 2 is the driving behavior optimization method flow chart of the present embodiment；
Fig. 3 is the control principle drawing of the anxious bad Acceleration driving behavior of the present embodiment；
Fig. 4 is the control principle drawing of the throttle shakiness bad steering behavior of the present embodiment；
In Fig. 1: 1 is system controller；
In Fig. 3: 101 be anxious acceleration region；102 be normal driver area；
In Fig. 4: 103 be throttle shakiness region.
Specific embodiment
With reference to the accompanying drawing, technical solution of the present invention is further elaborated.
The bad steering behavior of the present embodiment includes keeping out high speed, anxious acceleration and throttle shakiness.Wherein low gear with high is bad
Driving behavior is defined as: automobile gear level is in lower gear, and the revolving speed of engine is very high, and the behavior cannot make vehicle
It is maintained at optimized rotating speed and velocity interval, not only considerably increases fuel consumption, vehicle accessory but will be caused can not to repair
Damage.Anxious bad Acceleration driving behavior refers to: suddenly stepping in a short time, deep accelerator pedal, the urgency for improving speed rapidly
Acceleration behavior will not only greatly increase oil consumption, cause energy waste and environmental pollution, more there is serious security risk；Throttle is not
Steady bad steering behavior refers to: gas pedal driving behavior fluctuated will cause the wave up and down of distributive value in driving procedure
It is dynamic, biggish adverse effect is generated to complete-vehicle oil consumption.
As shown in Fig. 2, the method for the present embodiment are as follows: the operating parameter for obtaining vehicle in real time first judges whether to occur not
Good driving behavior, bad steering behavior is at least one of low gear with high, anxious acceleration and throttle shakiness, for bad steering row
For according to corresponding control algolithm: when low gear with high driving behavior occurs, the maximum speed of the engine of vehicle being limited in
Default maximum speed value；When anxious acceleration driving behavior occurs, practical gas pedal value is limited, the throttle exported
The gas pedal value of pedal value, output is no more than corresponding practical gas pedal value in the case of normally travel；When occur throttle not
When steady driving behavior, control engine is worth corresponding engine torque value output power value according to the gas pedal of setting, realizes
Optimal control to bad steering behavior.Here the operating parameter of vehicle includes the tire radius, base ratio, speed of vehicle
And engine speed.
The judgement of low gear with high bad steering behavior and the detailed process of control are as follows: according to obtained tire radius, master
Reduction ratio, speed and engine speed calculate practical notch speed ratio according to formula (2 π * n*radii*3.6)/(60* ν * ratio),
Wherein, n is engine speed, and v is speed, and radii is tire radius, and ratio is base ratio, then, by what is calculated
Practical notch speed is compared than the theoretical notch speed with vehicle calibration than one by one, selects practical notch speed than that immediate theoretical shelves
Speed ratio, then the theory notch speed is exactly gear locating for vehicle than corresponding gear.
Can the maximum speed value of the engine to each gear of vehicle in advance set, such as by vehicle motor highest
80%, 75%, the 70% of revolving speed is respectively as 2,3,4 grades of maximum speed limits value.Once it is low that system judges that driver makes
Shelves scorch behavior, just the gear according to locating for vehicle obtains the corresponding maximum speed limits value limitation engine of the gear
Maximum speed, so that vehicle be avoided to run according to the low gear with high driving behavior of driver.
The judgement of anxious bad Acceleration driving behavior and the detailed process of control are as follows: obtained in real time according to the first prefixed time interval
A series of gas pedal values are taken, when the difference of two neighboring gas pedal value is greater than the first given threshold, i.e., in the unit time
If interior gas pedal opening value is greater than the first given threshold, judge to occur it is anxious accelerate driving behavior, and by the two neighboring oil
Lesser value is denoted as gas pedal percentage initial value in door pedal percentage registration value.Then, by biggish gas pedal value
Adjustment are as follows: the+the first given threshold of gas pedal initial value, engine is according to gas pedal non-standard output signal torque adjusted
Value.
For example, setting gas pedal value as gas pedal percentage, the first prefixed time interval is 10ms (list at this time
The position time is also 10ms), when the first given threshold is 2%, the gas pedal percentage of first record is denoted as T0, then
A gas pedal value is recorded at interval of 10ms, is successively denoted as T1、T2、…、TN, then successively judge two neighboring record value it
Between difference whether be greater than 2%, that is, whether first determine whether T1-T0 more than 2%, if being more than, then anxious bad Acceleration have occurred and drives
Behavior is sailed, by T1Value be adjusted to T0+ 2%, it then proceedes to judge T2-T1Whether 2% is greater than, if being greater than, by T2Value adjustment
For T0+ 2*2%, and so on.If gas pedal opening value is all larger than 2%, i.e. T in the continuous unit time1-T0、T2-T1、…、
TN-TN- 1 is all larger than 2%, then, according to formula Tm=T0+ m*2% adjusts each gas pedal value, wherein m=0,1,2 ...,
N, N are the total number of unit time.
If T1、T2、…、TNIn when thering is one group of adjacent record value to be unsatisfactory for difference between the two greater than 2%, such as T3-T2
No more than 2%, then judge this for normal driving behavior, then, not to T3It is adjusted.And then, judge T4-T3It is greater than
2%, then to T4It is adjusted, T4=T3+ 2%.
The limitation to practical gas pedal value, the gas pedal value after output adjustment, according to tune are realized according to the method described above
Gas pedal value after whole exports corresponding engine power torque limit, and finally, realization does not control normal driving region,
And for the corresponding power value of curve A1 in anxious acceleration region control engine output such as Fig. 3.In the present embodiment, the oil of output
Door pedal value is equal to the corresponding practical gas pedal value of maximum in the case of normally travel, exports at once as long as determining lower adjusted value
Corresponding engine control value in this way, the controlling value of anxious acceleration region will be carried out in strict accordance with curve A1, and exports the period and also will
It is determined as 10ms.
The present embodiment preferably the first prefixed time interval is 10ms, and the first given threshold is 2%, certainly as other implementations
Mode, the first prefixed time interval and the first given threshold can be adjusted correspondingly according to the performance of vehicle.
The judgement of throttle shakiness bad steering behavior and the detailed process of control are as follows: constant duration is remembered within the set time
Gas pedal value is recorded, if the difference of the gas pedal initial value of any one gas pedal value and setting time is respectively less than second and sets
When determining threshold value, then throttle shakiness driving behavior occurs.
For example, set gas pedal value as gas pedal percentage, time interval 10ms, the second given threshold is
When 2%, the gas pedal percentage of first record is denoted as T0, a gas pedal percentage then is recorded at interval of 10ms,
Successively it is denoted as T1、T2、…、TN, work as satisfaction | T1-T0| < 2%, | T2-T0| < 2% ..., and | TN-T0| when < 2%, judgement is had occurred
Throttle shakiness driving behavior.At this time just according to the gas pedal percentage T of first record0, control engine power output is T0It is right
The engine torque value answered, as shown in curve A2 in Fig. 4.
As shown in Figure 1, the driving behavior optimization system for realizing the above method includes a system controller, which can
For a controller being separately provided, or a part in entire car controller.It, should when system controller is separately provided
System controller is connected to the network by CAN and vehicle, for obtaining vehicle operating parameter and vehicle performance factor, then according to whole
Vehicle operating parameter and vehicle performance factor judge whether that bad steering behavior occurs, when this happens, according to above-mentioned control algolithm control
Engine output processed.When system controller is entire car controller a part, the vehicle that can be received according to entire car controller
Operating parameter and vehicle performance factor judge whether that bad steering behavior occurs, when this happens, are controlled according to above-mentioned control algolithm
Engine output.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.Base of the invention
This thinking is above-mentioned basic scheme, and for those of ordinary skill in the art, various changes are designed in introduction according to the present invention
The model of shape, formula, parameter do not need to spend creative work.It is right without departing from the principles and spirit of the present invention
The change, modification, replacement and modification that embodiment carries out are still fallen in protection scope of the present invention.
Claims (10)
1. a kind of driving behavior automatic optimization method, which is characterized in that judge whether that bad steering behavior occurs, it is described bad to drive
The behavior of sailing includes throttle shakiness, for the bad steering behavior of throttle shakiness, according to algorithm control as follows: unstable when throttle occurs
When driving behavior, control engine is worth corresponding engine torque value output power value, realization pair according to the gas pedal of setting
The optimal control of bad steering behavior；
The deterministic process of the throttle shakiness driving behavior are as follows: constant duration records gas pedal value within the set time, if
When the difference of the gas pedal initial value of any one gas pedal value and setting time is respectively less than the second given threshold, then occur
Throttle shakiness driving behavior.
2. driving behavior automatic optimization method according to claim 1, which is characterized in that the bad steering behavior further includes
At least one of low gear with high and anxious acceleration, for bad steering behavior, according to corresponding control algolithm: low-grade high when occurring
When fast driving behavior, the maximum speed of the engine of vehicle is limited in default maximum speed value；Row is driven when anxious acceleration occurs
For when, practical gas pedal value is limited, the gas pedal value exported, the gas pedal value of output is no more than normal
Corresponding practical gas pedal value under travel situations.
3. driving behavior automatic optimization method according to claim 2, which is characterized in that the judgement occurs low gear with high and drives
To the deterministic process of gear locating for vehicle when sailing behavior are as follows: according to the tire radius of the vehicle of acquisition, base ratio, speed and hair
Motivation revolving speed calculates practical notch speed ratio, by practical notch speed than being compared with the theoretical notch speed demarcated in advance compared with finding out the reality with vehicle
The immediate theoretical reduction ratio of border reduction ratio, the corresponding gear of the immediate theoretical reduction ratio is exactly shelves locating for vehicle
Position.
4. driving behavior automatic optimization method according to claim 3, which is characterized in that the calculating of the practical notch speed ratio is public
Formula are as follows: (2 π * n*radii*3.6)/(60* ν * ratio), wherein n is engine speed, and v is speed, and radii is tire half
Diameter, ratio are base ratio.
5. driving behavior automatic optimization method according to claim 2, which is characterized in that gas pedal value of the output etc.
The corresponding practical gas pedal value of maximum in the case of normally travel.
6. driving behavior automatic optimization method according to claim 2, which is characterized in that the anxious acceleration driving behavior is sentenced
Disconnected process are as follows: if gas pedal opening value is more than the first given threshold within the unit time, anxious acceleration driving behavior occurs.
7. driving behavior automatic optimization method according to claim 1, which is characterized in that the gas pedal value set as
Gas pedal initial value.
8. driving behavior automatic optimization method according to claim 6, which is characterized in that the gas pedal value is stepped on for throttle
Plate percentage, the unit time are 10ms, and first given threshold is 2%.
9. driving behavior automatic optimization method according to claim 1, which is characterized in that the gas pedal value is stepped on for throttle
Plate percentage, the time interval are 10ms, and second given threshold is 2%.
10. driving behavior automatic optimization method according to claim 3, which is characterized in that the 2nd, 3,4 grade of engine is default
Maximum speed value is respectively 80%, 75% and the 70% of vehicle motor maximum speed.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106882188A (en) * | 2017-03-01 | 2017-06-23 | 潍坊力创电子科技有限公司 | The system and method for protecting vehicle drive axle |
| CN109421721B (en) * | 2017-08-16 | 2021-08-20 | 郑州宇通客车股份有限公司 | Automobile energy-saving method and system based on acceleration control |
| CN110027546B (en) * | 2019-04-28 | 2020-11-10 | 杭州鸿泉物联网技术股份有限公司 | Method and device for optimizing driving behavior |
| CN112009267B (en) * | 2020-09-09 | 2022-02-08 | 厦门金龙联合汽车工业有限公司 | New energy passenger car self-adaptive optimization control method based on real-time working condition recognition |
| CN112943468A (en) * | 2021-02-05 | 2021-06-11 | 潍柴动力股份有限公司 | Control method for vehicle rapid acceleration process and vehicle |
| CN115489504B (en) * | 2022-09-23 | 2024-04-19 | 东风柳州汽车有限公司 | Method and system for broadcasting accelerator information |
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