CN104265474B - Plateau starting fuel-flow control method equipped with highly supercharged diesel engine vehicle - Google Patents
Plateau starting fuel-flow control method equipped with highly supercharged diesel engine vehicle Download PDFInfo
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- CN104265474B CN104265474B CN201410363828.3A CN201410363828A CN104265474B CN 104265474 B CN104265474 B CN 104265474B CN 201410363828 A CN201410363828 A CN 201410363828A CN 104265474 B CN104265474 B CN 104265474B
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Abstract
The invention discloses a kind of plateau starting fuel-flow control method equipped with highly supercharged diesel engine vehicle, first, by detecting GES and hydraulic automatic speed variator shift command signal in real time, identify that driver starts to walk to be intended to; Next, in starting operating mode, the feedforward oil mass gone out by plateau starting experimental calibration and the basic oil mass addition obtained by the adjustment of PID closed loop are exported by diesel engine controller as starting oil mass; The starting oil mass of output is carried out starting air-fuel ratio restriction simultaneously; Finally, diesel engine controller detection start-up time, then assert that clutch is completely combined when described start-up time exceedes the clutch binding time of demarcation, diesel engine exits starting operating mode. The method starts to walk to be intended to by accurately identifying driver, and ride comfort during by coordinating to control to be effectively improved Vehicle in Plateau starting and rapidity, it is to avoid starting shake and the problem such as flame-out.
Description
Technical field
The present invention relates to Car Electronic Control field, particularly to a kind of plateau starting fuel-flow control method equipped with highly supercharged diesel engine heavy-duty vehicle.
Background technology
The ride comfort of Vehicle Starting Process and rapidity are to evaluate the important indicator of vehicle drive comfortableness and dynamic property, in order to meet the evaluation index of starting-up process as far as possible, it typically would be desirable to diesel engine runs with relatively low stabilization of speed in starting-up process, thus reducing the shock extent of starting-up process and the abrasion of clutch. Principle of dynamics according to Vehicle Starting Process, in starting-up process, the moment of torsion of clutch transmission is the driving moment of car load on the one hand, it is the load torque of diesel engine on the other hand, in this course, if the moment of torsion of clutch transmission is more than diesel engine maximum output torque, then can cause that diesel engine speed declines, its load capacity declines further, until diesel engine speed reaches with fluid torque-converter suitable to mate operating point; If lower than the minimum idling speed of diesel engine in diesel engine speed decline process, diesel engine in-cylinder combustion being made to worsen, cyclical fluctuation becomes big, even occurs catching fire, thus causing that diesel engine operating is unstable and flame-out. Therefore, in starting-up process, diesel engine speed cannot be below the minimum idling speed of diesel engine. At present, in the starting control technology of vehicle, after detecting that clutch combines, when falling under diesel engine speed, ECU is automatically adjusted air throttle or oil mass according to external load size, increasing moment of torsion thus remedying diesel engine speed, reaching the purpose preventing from stopping working.
But, for the heavy-duty vehicle under altitude environment, due to height above sea level, atmospheric pressure is low, rarefaction of air, diesel engine intake amount significantly reduces, in addition, there is the operating lag of air inlet in the diesel engine air inlet system containing exhaust-driven turbo-charger exhaust-gas turbo charger, also have, the large inertia of diesel engine and heavy-duty vehicle mechanical system makes again air inlet and the response lag of burning link, cause heavy-duty vehicle when starting to walk in plateau, the output moment of torsion of diesel engine is decreased obviously, when not working particularly in slow-speed of revolution low-load region turbocharger, the output moment of torsion of diesel engine declines even more serious.Now, common starting fuel-flow control strategy is no longer suitable for the heavy-duty vehicle starting operating mode when plateau. because traditional starting fuel-flow control method only detects and is just adjusted when diesel engine speed declines, it does not have identify that driver starts to walk to be intended in advance, be a kind of passive remedial measure, governing speed is also corresponding slower. simultaneously, traditional starting fuel-flow control technology generally individually adopts PID/feedback to control, compared with the feedforward, feedback control needs the longer time, because control system just can send after receiving the feedback signal that controll plant is movable and to correct the instruction that controll plant is movable, therefore the activity of controll plant is it may happen that necessarily fluctuate, independent feedback control is bigger for control difficulty for other operating modes of the operating mode that starts to walk, especially, under altitude environment, when car load inertia is big, during load changing, diesel engine speed easily produces fluctuation, thus it is even flame-out to cause that diesel engine speed declines.
It is disclosed in the information of this background section and is merely intended to increase the understanding of the general background to the present invention, and be not construed as admitting or imply in any form that this information structure is for prior art that persons skilled in the art are known.
Summary of the invention
It is an object of the invention to provide a kind of plateau starting fuel-flow control method equipped with highly supercharged diesel engine vehicle, adopt the method that feedforward combines with feedback, can quickly increase the energy of turbocharger during the starting of plateau, thus improving air inlet, improve diesel engine output moment of torsion, finally improve ride comfort and the rapidity of vehicle start.
For achieving the above object, the invention provides a kind of plateau starting fuel-flow control method equipped with highly supercharged diesel engine vehicle, it is characterized in that, comprise the steps: step 1, start diesel engine and make it into idling operation, in idling operation, diesel engine controller detects shift command signal and the GES of hydraulic automatic speed variator in real time, and diesel engine controller is intended to according to the starting of shift command signal and GES identification driver; Step 2, it is neutral gear when diesel engine controller detects a upper moment gear of hydraulic automatic speed variator, current gear is 1 grade, and the current vehicle speed that detects of diesel engine controller less than start to walk successful speed threshold value time, then diesel engine controller identification driver has starting intention, and diesel engine enters starting operating mode; Step 3, in starting operating mode, the feedforward oil mass gone out by plateau starting experimental calibration and the basic oil mass addition obtained by the adjustment of PID closed loop are exported by diesel engine controller as starting oil mass; Step 4, in starting operating mode, diesel engine controller detection start-up time, then assert that clutch is completely combined when start-up time exceedes the clutch binding time of demarcation, diesel engine exits starting operating mode.
Preferably, after step 4 assert that clutch is completely combined, and the speed detected not up to start to walk successful speed threshold value time, feedforward oil mass was gradually decreased as 0 in 20 seconds, and diesel engine slowly exits starting operating mode.
Preferably, the successful speed threshold value that starts to walk is 5km/h.
Preferably, after step 4 being assert, clutch is completely combined, and detecting that speed is higher than the successful speed threshold value of starting or detects when hydraulic automatic speed variator leaves 1 grade, feedforward oil mass was reduced to rapidly 0 in 1 second, and diesel engine controller quickly exits starting operating mode.
Preferably, in step 3, the starting oil mass of output is carried out external characteristics restriction by diesel engine controller, and starting oil mass can be limited within the scope of diesel engine greatest requirements oil mass by diesel engine controller by external characteristics restriction.
Preferably, in step 3, the starting oil mass of output is carried out air-fuel ratio restriction according to the starting air-fuel ratio restrictive curve demarcated by diesel engine controller simultaneously.
Preferably, diesel engine controller detects shift command signal and the GES of hydraulic automatic speed variator in real time by CAN.
Preferably, the numerical value of the oil mass that feedovers is obtained by plateau starting experiment.
Preferably, starting oil mass exports when upshift signal sends.
Preferably, the clutch binding time of demarcation is 1s.
Compared with prior art, there is advantages that
1, by shift command signal and GES, can accurately judge that driver starts to walk to be intended to, and utilize upshift command signal to be issued to gear shift sleeve to start in conjunction with this period of period of delay, make a response in advance, improving supercharger energy, improve diesel engine intake, declining with moment of torsion thus falling under the rotating speed that will produce in Active Compensation starting-up process, ensure that starting is steadily, it is prevented that flame-out;
2, the feedforward can monitor interference or reason in advance, it is prevented that adaptation response is made in the upset of interference in advance. The intention that starts to walk in this method is exactly reason, during starting, the sudden change of load is disturbed exactly, the oil mass that feedovers is then the adaptation response that this control system is made for predicted interference, thus the introducing of feedforward oil mass then can strengthen the rapidity of control, the oil mass that increases sharply is thus accelerating supercharger response, and this method also maintains the feature of PID closed loop fuel-flow control stability simultaneously;
3, air-fuel ratio is limited oil mass and switches to lower limit pattern by ECU, adopt starting air-fuel ratio restrictive curve, suitably decontrol oil mass restriction, coordinate the output of high oil mass, thus increasing turbocharger energy, it is effectively improved low speed and load district, especially turbocharger operation condition during altitude environment, accelerates turbocharger response speed, increase sharply secondary speed, improve admission pressure, thus realizing the lifting of rotating speed and moment of torsion, final raising starting dynamic property.
Accompanying drawing explanation
Fig. 1 is the starting fuel-flow control strategy sketch according to the present invention;
Fig. 2 is the flow chart of the starting-up process fuel-flow control according to the present invention;
Fig. 3 is according to the oil mass that feedovers in the starting-up process of the present invention, basis oil mass, always exports the comparison diagram of the change curve of oil mass, diesel engine speed, speed.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, it is to be understood that protection scope of the present invention is not by the restriction of detailed description of the invention.
Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " includes " or its conversion will be understood to comprise the element or ingredient stated at such as " comprising " or " including " etc., and does not get rid of other element or other ingredient.
As shown in Figure 1, the main thought equipped with the plateau starting fuel-flow control method of highly supercharged diesel engine vehicle according to the specific embodiment of the invention is that (basis oil mass) adds feedforward oil mass on the basis based on the PID closed loop adjusting oil mass of idling rotating speed of target, two parts are added the control oil mass obtained and act on executor's monoblock pump, thus changing the duty of control object and diesel engine, promote rapidly starting moment of torsion. Especially, this starting fuel-flow control method is applicable to the plateau starting of the heavy-duty vehicle equipped with highly supercharged diesel engine.
As shown in Figure 2, the plateau starting fuel-flow control method equipped with highly supercharged diesel engine vehicle of the present invention is described in detail with a kind of preferred embodiment, the preferred embodiment describe from starting start to fuel-flow control method in the whole process of EOS be embodied as flow process, comprise the steps:
One, identify that driver starts to walk to be intended to, thus triggering starting coordination control strategy, specific as follows:
(1) entering into idling operation after diesel engine starting success, now, diesel engine controller carries out PID closed loop fuel-flow control (prior art) based on idling rotating speed of target.
(2) in idling operation, diesel engine controller detects shift command signal and the GES of hydraulic automatic speed variator in real time, specifically, if a upper moment gear is neutral gear, and current gear is 1 grade, and the current vehicle speed detected by vehicle speed sensor less than 5km/h time, then show that driver has starting and is intended to, diesel engine enters starting operating mode (mark position 1 of now starting to walk), starts the timing that starts to walk.
Two, the starting execution stage, adopt and regulate, with closed loop PID, the fuel-flow control strategy combined based on the feedforward oil mass demarcated, specific as follows:
(3) in starting operating mode, diesel engine controller adopts and carries out the adjustment of idling PID closed loop through the starting pid parameter optimized, and calculates and obtains base oil amount Qb。
(4) the feedforward oil mass Q of demand time starting in plateau will be gone out beforehand through starting experimental calibrationfBasic oil mass Q with previous stepbIt is added, the oil mass obtained exports as final control oil mass (starting oil mass), this part oil mass sprays into in-cylinder combustion, utilize upshift signal to be issued to gear shift sleeve and start in conjunction with this period of period of delay, the turbocharger that increases sharply energy, improves diesel engine speed, and compensated in advance clutch declines falling under the rotating speed of generation with admission pressure after combining, ensure that starting is steadily, it is prevented that flame-out.
Three, the starting oil mass of output is limited by diesel engine controller, specific as follows:
(5) first, the starting oil mass of output is carried out external characteristics restriction, the output oil mass being about under starting oil mass and the current rotating speed of electromotor corresponding to external characteristics torque point compares, take smaller value, prevent distributive value too much beyond the maximum oil mass demand of diesel engine, thus strengthening oil consumption and discharge.
(6) special, in the present embodiment, the starting oil mass of output is carried out starting air-fuel ratio restriction, while mark position 1 of starting to walk in step (2) being detected, air-fuel ratio is limited oil mass and switches to lower limit pattern by ECU (diesel engine controller), namely starting air-fuel ratio restrictive curve is adopted, matching step (4) increases oil mass output, thus ensureing dynamic property when starting to walk, the main purpose adopting this lower limit pattern is because air capacity is not enough under restriction transient condition, gaseous mixture overrich and beyond the smoke limit of diesel engine, cause burning to worsen and increase the weight of discharge.
Under normal circumstances, adopt the ordinary air-fuel ratio restrictive curve through demarcating, but the air-fuel ratio restrictive curve suitable in starting-up process will be switched in starting-up process, this starting air-fuel ratio limiting parameter compared with normal air-fuel ratio limiting parameter is low, namely pay the utmost attention to heavy-duty vehicle dynamic property demand, suitably decontrol air-fuel ratio restriction oil mass. Other operating modes under non-starting state, will recover normal condition, adopt comparatively strict high air-fuel ratio to limit.
(7) last, the oil mass obtained in step (6) is finally exported further across revising and limiting, such as carry out diesel engine the row restriction of warm high oil mass, the low oil mass restriction of diesel engine oil pressure etc., complete the fast lifting of diesel engine speed and moment of torsion, when the gear shift sleeve of hydraulic automatic speed variator start in conjunction with time, vehicle start starting.
Four, starting operating mode is exited, in this stage, whether diesel engine controller exceedes the clutch binding time of demarcation by detecting start-up time judges whether clutch is completely combined, after clutch is completely combined, diesel engine exits starting operating mode, specifically includes and slowly exits and quickly exit two kinds of situations:
(8) slowly exit starting judge: gear be 1 and speed not up to start to walk successful speed threshold value time, in the present embodiment, the successful speed threshold value that starts to walk is 5km/h, order feedforward oil mass QfIt is gradually reduced in time, is reduced to 0 in certain time (20 seconds), slowly exits starting operating mode.Slowly exiting in starting-up process, diesel engine controller has been used up slowly cutting down the strategy of oil mass until 20s timing arrives, and oil mass is reduced to zero, plays EOS, and hereafter ECU (diesel engine controller) will recover normal fuel-flow control strategy.
In the process, clutch combines and starts to the process of being completely combined to be that dynamic friction is changed into static friction process, and torque demand is relatively big, and diesel engine speed declines more, this process needs bigger feedforward oil mass to promote diesel engine speed in advance, it is prevented that rotating speed drop is too much even flame-out; When clutch is completely combined, diesel engine speed is in minimum state, if diesel engine is not flame-out, hereafter rotating speed will progressively go up, at this moment feedforward oil mass can gradually reduce, also reserve stepping on accelerator pedal to driver while slowly exiting starting operating mode and be accelerated the space of starting, thus enhancing the operability of vehicle start, this situation is likely to occur upward slope starting or starting turns to etc. in process.
(9) quickly exit starting to judge: when detecting that speed is more than 5km/h, it is believed that start to walk successfully, or when gear is not 1, it is believed that driver selects to exit starting, flag bit clear 0 of now all starting to walk, order feedforward oil mass QfBeing reduced to rapidly 0 within the very fast time (1 second), quickly exit starting while ensureing the ride comfort of operating mode linking, after playing EOS, ECU will recover normal fuel-flow control strategy.
In technique scheme, shift command signal, GES in step (2) are obtained by CAN by diesel engine ECU; Feedforward oil mass Q in step (6)fCarry out demarcation for target by the starting experiment of specific plateau and obtain optimizing vehicle start rapidity and ride comfort, specifically, QfRelevant to atmospheric pressure value, look into one-dimensional MAP table according to current atmospheric pressure during starting and obtain; Upshift signal in step (4) is issued to gear shift sleeve and starts in conjunction with being arranged in advance by diesel engine controller and gearbox control this period of period of delay, relevant to the rotating speed response of diesel engine, also have influence on operating experience when driver carries out gear shift simultaneously, consider above-mentioned two factor, in this method, this period of delay is set to 1S, and starting oil mass exports when upshift signal sends; The clutch binding time of the demarcation in step (8), namely shift command is issued to the time t that clutch is completely combined multiple acquisition methods, clutch stroke sensor can be utilized to record, obtain also by experimental calibration, period of delay in the present embodiment adopts experimental calibration to obtain, and concrete grammar is, starts to be bonded in complete process at clutch, analyze diesel engine speed and change to the change of minimum point from maximum point, be measured as 1S through experiment.
Specifically, as it is shown on figure 3, the Vehicle in Plateau starting fuel-flow control method of the present invention feedover in the process of practical function oil mass, basic oil mass, always export oil mass (starting oil mass), diesel engine speed and speed real-time change situation as follows:
t0Before moment, diesel engine is in idle running operating mode, and feedforward oil mass is 0 inoperative, and total output oil mass is PID closed loop adjusting oil mass (basis oil mass), and diesel engine speed keeps idling rotating speed of target, and speed is 0;
t0Moment ECU detects that neutral gear rises the shift command signal of 1 grade, now owing to speed is 0 less than 5km/h, thus enters starting operating mode. The feedforward oil mass Q of the starting demand obtained by plateau starting experimental calibrationfFunction to, become calibration value from 0, be added with closed loop PID adjusting oil mass and obtain the total oil mass of final diesel engine (starting oil mass), thus always export oil mass t0Moment also increases therewith;
t0～t0+1Time period is the period of delay that upshift signal is issued to that gear shift sleeve starts to combine, and the time is 1S. During this period of time owing to clutch does not start to combine, and the total oil mass of diesel engine is increased, thus turbocharger energy increases rapidly, diesel engine speed will promote rapidly, the diesel engine speed compensated in following clutch cohesive process is declined, it is to avoid rotating speed declines too much thus producing shake and flame-out; Now actually also carry out the operation of low air-fuel ratio curve switching inside controller, coordinate the output of big oil mass. Meanwhile, the basic oil mass Q that PID closed loop regulatesbOwing to diesel engine actual speed beyond rotating speed of target thus declines to some extent. Owing to clutch is not associated with, so speed remains as 0;
t0+1The gear shift sleeve of moment hydraulic automatic speed variator starts to combine, t0+1To t0+2In process, diesel engine torque begins through drive system and passes to wheel, and speed increases by 0; In gear shift sleeve cohesive process, engine load is gradually increased, thus diesel engine speed will be gradually reduced; Feedforward oil mass continuous action, total oil mass is still by feedforward oil mass QfBasis oil mass Q is regulated with PID closed loopbBoth are added and obtain;
t0+2Moment gear shift sleeve is completely combined, state is become static friction process from dynamic friction, now diesel engine speed reaches minimum, hereafter diesel engine speed will progressively go up, now ECU sets feedforward oil mass and was gradually decreased to 0 with given pace in 20 seconds, adopts the pattern slowly exiting starting operating mode when speed is not up to 5km/h; Total output oil mass also will slowly reduce, and speed will be further increased;
t1Moment detects that speed is more than 5km/h, represents and starts to walk successfully, and now feedforward oil mass was reduced to rapidly 0 by controller in 1 second, quickly exited starting operating mode, recovered normal fuel-flow control strategy afterwards;
t1+1Moment, i.e. t11 second afterwards, the oil mass that feedovers was reduced to 0, adopts normal fuel-flow control strategy, and total output oil mass is PID closed loop adjusting oil mass, and diesel engine speed maintains target idling speed, and speed will balance at a certain particular value;
If starting starts rear speed always below 5km/h, controller will be completely combined (t at clutch0+2Moment) in latter 20 seconds, namely at t0+22Moment is reduced to 0 gradually, walk unhurriedly and exit starting operating mode, this situation possibly be present at heavy-duty vehicle starting turn to or go up a slope the situations such as starting time, in this case the 20 second time set has been reserved stepping on accelerator pedal auxiliary as driver and has accelerated the space of starting, enhances the operability of vehicle start.
In a word, the method accurately identifies driver by shift command signal and GES and starts to walk to be intended to, the method combined is regulated by the PID closed loop based on the feedforward oil mass demarcated with based on idling rotating speed of target, utilize shift command to be issued to clutch and start the time before combining, increase rapidly starting oil mass, the turbocharger that increases sharply energy, declines the admission pressure occurred in Active Compensation starting-up process and rotating speed declines; ECU switches oil mass restriction strategy simultaneously, coordinates oil mass output, thus ensureing that vehicle is when starting, especially heavy-duty vehicle improves starting ride comfort and rapidity equidynamic index in the starting-up process of plateau.
The aforementioned description to the specific illustrative embodiment of the present invention illustrates that and the purpose of illustration. These describe and are not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned instruction, it is possible to carry out much changing and change.Purpose exemplary embodiment selected and describe is in that to explain the certain principles of the present invention and practical application thereof, so that those skilled in the art is capable of and utilizes the various different exemplary of the present invention and various different selection and change. The scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (10)
1. the plateau starting fuel-flow control method equipped with highly supercharged diesel engine vehicle, it is characterised in that comprise the steps:
Step 1, start diesel engine and make it into idling operation, in idling operation, diesel engine controller detects shift command signal and the GES of hydraulic automatic speed variator in real time, and diesel engine controller is intended to according to the starting of described shift command signal and described GES identification driver;
Step 2, it is neutral gear when diesel engine controller detects a upper moment gear of hydraulic automatic speed variator, current gear is 1 grade, and the current vehicle speed that detects of diesel engine controller less than start to walk successful speed threshold value time, then diesel engine controller identification driver has starting intention, and diesel engine enters starting operating mode;
Step 3, in starting operating mode, the feedforward oil mass gone out by plateau starting experimental calibration and the basic oil mass addition obtained by the adjustment of PID closed loop are exported by diesel engine controller as starting oil mass;
Step 4, in starting operating mode, diesel engine controller detection start-up time, then assert that clutch is completely combined when described start-up time exceedes the clutch binding time of demarcation, diesel engine exits starting operating mode.
2. the plateau starting fuel-flow control method equipped with highly supercharged diesel engine vehicle according to claim 1, it is characterized in that, after described step 4 being assert, clutch is completely combined, and the speed detected not up to start to walk successful speed threshold value time, described feedforward oil mass was gradually decreased as 0 in 20 seconds, and diesel engine slowly exits starting operating mode.
3. the plateau starting fuel-flow control method equipped with highly supercharged diesel engine vehicle according to claim 2, it is characterised in that the successful speed threshold value that starts to walk is 5km/h.
4. the plateau starting fuel-flow control method equipped with highly supercharged diesel engine vehicle according to claim 1, it is characterized in that, after described step 4 being assert, clutch is completely combined, and detect that speed is higher than the successful speed threshold value of starting or detects when hydraulic automatic speed variator leaves 1 grade, described feedforward oil mass was reduced to rapidly 0 in 1 second, and diesel engine controller quickly exits starting operating mode.
5. the plateau starting fuel-flow control method equipped with highly supercharged diesel engine vehicle according to claim 1, it is characterized in that, in described step 3, the starting oil mass of output is carried out external characteristics restriction by diesel engine controller, and described starting oil mass can be limited within the scope of diesel engine greatest requirements oil mass by diesel engine controller by external characteristics restriction.
6. the plateau starting fuel-flow control method equipped with highly supercharged diesel engine vehicle according to claim 5, it is characterized in that, in described step 3, the starting oil mass of output is carried out air-fuel ratio restriction according to the starting air-fuel ratio restrictive curve demarcated by diesel engine controller simultaneously.
7. the plateau starting fuel-flow control method equipped with highly supercharged diesel engine vehicle according to claim 1, it is characterised in that diesel engine controller detects shift command signal and the GES of hydraulic automatic speed variator in real time by CAN.
8. the plateau starting fuel-flow control method equipped with highly supercharged diesel engine vehicle according to claim 1, it is characterised in that the numerical value of described feedforward oil mass is obtained by plateau starting experiment.
9. the plateau starting fuel-flow control method equipped with highly supercharged diesel engine vehicle according to claim 1, it is characterised in that described starting oil mass exports when upshift signal sends.
10. the plateau starting fuel-flow control method equipped with highly supercharged diesel engine vehicle according to claim 1, it is characterised in that the clutch binding time of demarcation is 1s.
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| CN105952545B (en) * | 2016-04-28 | 2019-03-12 | 无锡威孚高科技集团股份有限公司 | Based on modular electric-control diesel engine oil mass calculating control system and method |
| CN109162817B (en) * | 2018-10-31 | 2020-08-21 | 潍柴动力股份有限公司 | Diesel engine control method and device |
| CN110210076A (en) * | 2019-05-14 | 2019-09-06 | 深圳臻宇新能源动力科技有限公司 | Control vehicle is creeped the method and apparatus of operating condition |
| CN111878243B (en) * | 2020-06-30 | 2021-08-06 | 东风汽车集团有限公司 | Vehicle crawling target idle speed control method and system |
| CN112628005B (en) * | 2020-12-09 | 2022-11-29 | 潍柴动力股份有限公司 | Engine rotating speed closed-loop control method and device, storage medium and electronic equipment |
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| JP2569749B2 (en) * | 1988-08-23 | 1997-01-08 | トヨタ自動車株式会社 | Fuel injection control device for diesel engine |
| JPH0476246A (en) * | 1990-07-13 | 1992-03-11 | Toyota Motor Corp | Maximum injection quantity controller of diesel engine with supercharger |
| CN101082318B (en) * | 2006-05-31 | 2011-09-21 | 卡特彼勒公司 | Turbo-charger control system |
| JP4736969B2 (en) * | 2006-06-15 | 2011-07-27 | トヨタ自動車株式会社 | Diesel engine control device |
| DE102007041227B8 (en) * | 2006-09-05 | 2014-01-23 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | System for controlling the regeneration of lean NOx traps |
| CN103382899B (en) * | 2013-07-08 | 2016-01-13 | 北京理工大学 | A kind of method and apparatus recovering engine power under altitude environment |
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