CN101825026B - Load intelligent identifying fuel-saving control method for whole diesel vehicle - Google Patents
Load intelligent identifying fuel-saving control method for whole diesel vehicle Download PDFInfo
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- CN101825026B CN101825026B CN201010157247A CN201010157247A CN101825026B CN 101825026 B CN101825026 B CN 101825026B CN 201010157247 A CN201010157247 A CN 201010157247A CN 201010157247 A CN201010157247 A CN 201010157247A CN 101825026 B CN101825026 B CN 101825026B
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Abstract
The invention provides a load intelligent identifying fuel-saving control method for a whole diesel vehicle. A load intelligent identifying controller is comprised; the load intelligent identifying controller stores torques of all gears at constant speed in a full-load and no-load state; and the load intelligent identifying controller obtains the information of an engine and the whole vehicle by a CAN (Controller Area Network) bus, automatically identifies the state of the whole vehicle and outputs corresponding load state information to an engine ECU (Electronic Control Unit) according to the current load state, and the engine ECU controls and selects a corresponding power grade curve and adjusts rotating speed so that a diesel engine is operated in an optimal economic area all the time. The invention has the advantages of not changing software and hardware of the whole vehicle and the engine ECU, having simple controller interface and high cost-performance ratio, realizing data communication just by the CAN bus, greatly improving the driving comfort while saving fuel and saving fuel at maximum with lowest cost.
Description
Technical field
The present invention relates to a kind of vehicle oil saving controlling method, especially a kind of load intelligent identifying fuel-saving control method for whole diesel vehicle.
Background technique
International Crude Oil hits new peak continuously at present, and fuel price also climbs up and up thereupon, and society has proposed requirements at the higher level to the fuel economy of automobile, and the various technical measures that can significantly reduce fuel consume receive people's great attention.
Selecting corresponding power grade curve according to load is one of effective technology measure that effectively improves the car load fuel economy.This energy-saving function technology; Also there is certain methods at present; Using maximum is the multimode switch, and this method judges that to load bigger subjectivity is arranged but exist by the loaded-up condition that the driver judges car load; And can occur forgeing or unknown this function of fresh driver and leak a series of personal factors such as operation, can have the possibility that increases oil consumption on the contrary sometimes.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the existing technology; A kind of load intelligent identifying fuel-saving control method for whole diesel vehicle is provided; Mainly solve the intelligent recognition of diesel engine carload, avoid the driver disconnected and to the operation of forgeing of polymorphic switch the erroneous judgement of carload.
According to technological scheme provided by the invention, said load intelligent identifying fuel-saving control method for whole diesel vehicle comprises a load intelligent recognition controller, the moment of torsion when said load intelligent recognition controller has each grade constant speed under fully loaded and the unloaded state; Load intelligent recognition controller obtains motor and car load information through the CAN bus; Automatically discern whole vehicle state; Export corresponding loaded-up condition information according to current loaded-up condition and give Engine ECU; Select corresponding power grade curve by Engine ECU control, the adjustment rotating speed makes diesel engine run on the optimal economic zone all the time.
The loaded-up condition information of said load intelligent recognition controller output is meant: the moment of torsion under current gear, the speed of a motor vehicle takes and carries, the ratio of unloaded moment of torsion.
The loaded-up condition information of said load intelligent recognition controller output is divided into: zero load, 1/3 load, 2/3 load, fully loaded.
Said current loaded-up condition is meant rotating speed, the speed of a motor vehicle and the moment of torsion that is in stable state current car load after 5 minutes at car load.
The information of said load intelligent recognition controller is obtained all based on car load CAN network, and load intelligent recognition controller is realized that engine information obtains and all is based on the SAE-J1939 agreement.
Advantage of the present invention is:
1. the software and hardware of car load and Engine ECU need not to change;
2. this load intelligent recognition control unit interface is simple, only realizes data communication through the CAN bus;
3. can also improve driving comfortability greatly fuel-economizing the time;
4. this load intelligent recognition controller cost performance is high, realizes the highest fuel-economizing with least cost;
5. delicate appearance of the present invention is small and exquisite, arranges compact, easy for installation.
Description of drawings
Fig. 1 is a control system structural representation of the present invention.
Fig. 2 is a diesel-oil whole load intelligent identifying fuel-saving control flow chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.The present invention relates to a kind of load intelligent identifying fuel-saving control method for whole diesel vehicle; Can effectively utilize ECU internal data and strategy, ECU software and hardware and former car load internal structure are not done any change, discern automatically with least cost realization carload state; According to car load actual load percentage; Select corresponding power grade curve, make diesel engine be in the running of optimal economic zone all the time, effectively change driver's driving habits.
As shown in Figure 1: the ECU engine electric-controlled unit is responsible for controlling the work of motor, comprises starting, oil spout, shutdown etc.Load intelligent recognition controller is responsible for real-time monitoring engine and whole vehicle state information, carries out the load judgement and loaded-up condition is issued Engine ECU, carries out the selection of power curve by Engine ECU, carries out corresponding fuel-saving control.
Load intelligent recognition controller of the present invention; Obtain motor and car load information fast through the CAN bus; Automatically the identification whole vehicle state is exported corresponding loaded-up condition (unloaded-1/3 load-2/3 load-fully loaded) information according to current loaded-up condition and is given Engine ECU, selects corresponding power grade curve by Engine ECU control; The adjustment rotating speed makes diesel engine run on the optimal economic zone all the time.Be under the identical torque demand situation for car load; There is load intelligent recognition controller to export corresponding load percentage information according to current loaded-up condition and gives Engine ECU; Select corresponding power grade curve by Engine ECU control; Rotating speed is obtained adjustment, make engine condition adjust to the economic zone, reduce engine consumption.
Its core technology of load intelligent identifying fuel-saving control method for whole diesel vehicle is to confirm under fully loaded and the unloaded state moment of torsion during each grade constant speed; Obtain the moment of torsion of the current gear and the speed of a motor vehicle again according to the CAN bus, thereby confirm carload percentage.
Specific practice of the present invention is: at first through car load experiment or analog computation, confirms under fully loaded and the unloaded state, and the moment of torsion during each grade constant speed, and deposit load intelligent recognition controller in.Through the CAN bus, obtain rotating speed, the speed of a motor vehicle and the moment of torsion of current car load again.For guaranteeing the precision of load, need be in stable state after 5 minutes at car load, carry out load and judge, the moment of torsion under current gear, the speed of a motor vehicle takes and carries, the ratio of unloaded moment of torsion.Four load gears of main branch: zero load, 1/3 load, 2/3 load, fully loaded.And this load signal sent to Engine ECU; Select corresponding power grade curve by Engine ECU; And force the driver to change driving habits through the adjustment throttle, and make diesel engine be in the running of optimal economic zone all the time, avoid making motor to be in the low-speed big state for a long time; Make motor be in the mapping characteristics economic zone, reach the purpose of practicing thrift fuel consume with this.
Claims (2)
1. load intelligent identifying fuel-saving control method for whole diesel vehicle comprises a load intelligent recognition controller, it is characterized in that: the moment of torsion when said load intelligent recognition controller has each grade constant speed under fully loaded and the unloaded state; Load intelligent recognition controller obtains motor and car load information through the CAN bus; Automatically discern whole vehicle state; Export corresponding loaded-up condition information according to current loaded-up condition and give Engine ECU; Select corresponding power grade curve by Engine ECU control, the adjustment rotating speed makes diesel engine run on the optimal economic zone all the time; The loaded-up condition information of said load intelligent recognition controller output is meant: the moment of torsion under current gear, the speed of a motor vehicle takes and carries, the ratio of unloaded moment of torsion; The loaded-up condition information of said load intelligent recognition controller output is divided into: zero load, 1/3 load, 2/3 load, fully loaded; The information of said load intelligent recognition controller is obtained all based on car load CAN network, and load intelligent recognition controller is realized that engine information obtains and all is based on the SAE-J1939 agreement.
2. load intelligent identifying fuel-saving control method for whole diesel vehicle as claimed in claim 1 is characterized in that said current loaded-up condition is meant rotating speed, the speed of a motor vehicle and the moment of torsion that is in stable state current car load after 5 minutes at car load.
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| CN201010157247A CN101825026B (en) | 2010-04-15 | 2010-04-15 | Load intelligent identifying fuel-saving control method for whole diesel vehicle |
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| CN201010157247A CN101825026B (en) | 2010-04-15 | 2010-04-15 | Load intelligent identifying fuel-saving control method for whole diesel vehicle |
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| CN101825026A CN101825026A (en) | 2010-09-08 |
| CN101825026B true CN101825026B (en) | 2012-10-10 |
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Families Citing this family (11)
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| CN102381308B (en) * | 2011-09-21 | 2013-12-04 | 山推工程机械股份有限公司 | Motor vehicle power control method and system |
| CN104121107A (en) * | 2014-07-02 | 2014-10-29 | 潍柴动力股份有限公司 | Multi-power output control method and device |
| CN104454212A (en) * | 2014-12-05 | 2015-03-25 | 无锡盛邦电子有限公司 | Engine load controller |
| CN106677913B (en) * | 2015-11-10 | 2019-11-01 | 中联重科股份有限公司 | Power and load matching control method, device and system and transport vehicle |
| CN106401746B (en) * | 2016-11-03 | 2018-11-23 | 福建龙马环卫装备股份有限公司 | A kind of device and method of Environmental sanitation cleaning vehicle assistant engine control and status display |
| CN108104959A (en) * | 2017-12-13 | 2018-06-01 | 天津雷沃发动机有限公司 | A kind of non-road engines electronic controlled power output control method |
| CN111305957B (en) * | 2019-07-19 | 2021-05-25 | 厦门雅迅网络股份有限公司 | Control circuit and method of oil-saving multi-state switch |
| CN110877583B (en) * | 2019-11-21 | 2022-11-08 | 上海新动力汽车科技股份有限公司 | Control system and method of vehicle intelligent fuel-saving switch |
| CN112594079B (en) * | 2020-12-07 | 2022-09-06 | 一汽解放汽车有限公司 | Method and device for determining rotational speed economic region of engine, vehicle and storage medium |
| CN113593079A (en) * | 2021-07-30 | 2021-11-02 | 东风商用车有限公司 | Road condition self-adaption method, device, equipment and readable storage medium |
| 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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