CN103253268A - Control method of automotive N-gear (neutral gear) start-stop system - Google Patents
Control method of automotive N-gear (neutral gear) start-stop system Download PDFInfo
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- CN103253268A CN103253268A CN2012104319483A CN201210431948A CN103253268A CN 103253268 A CN103253268 A CN 103253268A CN 2012104319483 A CN2012104319483 A CN 2012104319483A CN 201210431948 A CN201210431948 A CN 201210431948A CN 103253268 A CN103253268 A CN 103253268A
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Abstract
The invention discloses a control method of an automotive N-gear (neutral gear) start-stop system and aims to provide a control method of an N-gear start-stop system. The method enables fuel economy to be improved effectively and exhaust emission to be reduced effectively, has low production cost and is applicable to popularization. The control method includes: firstly, after an engine is started by an ignition switch and when all conditions met, allowing the engine to be in a N-gear flameout status from the runing status; and secondly, after the engine is started by a key switch which ignites and when starting conditions of the engine are met, allowing the system to send a 'start command' to the engine and a starter until the engine is in the start status again. The conditions include A, the speed is smaller than a threshold Vf; A1, the engine speed is larger than a threshold Fs1; B, the automobile is braked; B1, brake system booster vacuum degree is larger than a threshold Zf; C, the voltage of a battery is larger than a threshold Uf; and D, a transmission is at the N gear, and the residence time of the N gear is larger than a threshold Tf.
Description
Technical field
The present invention relates to field of automobile control, be specifically related to the control method that a kind of automobile N based on the automatic transmission with hydraulic torque converter exploitation keeps off start stop system.
Background technology
Along with the continuous lifting of fuel price, fuel oil consumption speed, and motor vehicle exhaust emission causes air-polluting to increasingly sharpen, and society is also all the more strict to the automobile fuel consumption performance demands; For reducing fuel consumption rate, reduce vehicle exhaust the various technology of air-polluting are received much concern.Along with the continuous application of up-to-date technology, the performance of driving engine is also increasingly mature; Single improve from engine performance, for the control of fuel economy and exhaust emissions is also difficult for the moment bigger breakthrough arranged; Thereby the theory of engine idle start-stop is applied in the automotive control system.Engine start/stop refers to, when automobile is in idling mode and the speed of a motor vehicle and is lower than certain value, and engine off; When solving automobile and be in idling mode with this to the problem of fuel oil consumption and exhaust emissions, thereby improve fuel economy and reduce exhaust emissions.But present engine start/stop system is used for the vehicle of hybrid power more; Though the engine start/stop system has been developed application in the high gear vehicle of some single power, braking start and stop pattern is all adopted in driving engine start and stop at present both at home and abroad, namely when the speed of a motor vehicle less than certain threshold values, and brake pedal stops the driving engine operation when effective; The automatic ignition start of driving engine when brake pedal is released.Because braking start and stop pattern energizing signal is car brakeing; so very easily cause some unnecessary frequent start-stops; not only obviously influenced the dynamic response characteristics of vehicle; and when blocking up, following car namely need utilize the fuel-economizing of start and stop function; this inconvenience is just all the more obvious, even causes excessive fuel consumption more because frequent start-stop causes the engine shutdown time too short (as less than 6 ~ 8 seconds).Market facts have proved: have the user who brakes start and stop in a large number because this function is all closed in use inconvenience for a long time; And because the braking start and stop relate to vehicle safety, monitor, protect so the high precision sensor special need be set, and need to adopt multiple reinforced member so time-to-market is long, productive costs height and usability are relatively poor; Be not suitable for popularization and application; Thereby how to design and a kind ofly not only can effectively improve fuel economy, reduce exhaust emissions; And easy to use, oil-saving effect is obvious, and productive costs is low, and time-to-market is short, extremely is necessary when being applicable to the control system of popularization and application and control method.
Summary of the invention
The objective of the invention is to use in order to overcome existing Jake brake start and stop start stop system and in the vehicle of single power, to use inconvenient, oil-saving effect is not obvious, the productive costs height, time-to-market is long, be not suitable for the problem of popularization and application, provide a kind of not only easy to use, flexible, reliable and can effectively improve fuel economy, reduce exhaust emissions; And it is low to produce cost, and time-to-market is short, is applicable to the control method of the automobile N retaining start stop system of popularization and application.This control method is further to improve safety and the development of latent energy-saving potential of vehicle operating simultaneously, according to different condition every functions such as car door, vehicle window, car light is carried out integrated control.
Technical scheme of the present invention is:
A kind of control method of automobile N retaining start stop system is characterized in that,
One, behind key switch ignition start driving engine, when meeting the following conditions simultaneously:
A: the speed of a motor vehicle is less than threshold values Vf, or the speed of a motor vehicle is zero;
A1: engine speed is greater than threshold values Fs1;
B: vehicle is in braking mode;
B1: brake system power-assisted degree of vacuum is greater than threshold values Zf;
C: battery tension is greater than threshold values Uf;
D: the gear of change-speed box is in the N retaining, and gear surpasses threshold values Tf in the residence time of N retaining; Then driving engine enters N retaining flameout state by running state;
Two, behind key switch ignition start driving engine, and meet the following conditions:
A: vehicle is in braking mode;
B: the speed of a motor vehicle is less than threshold values Vf;
C: engine speed is less than threshold values Fs1;
D: gear is entered by the N retaining " D " retaining or " R " retaining, or manual " S1 " in auto-manual retaining; Then system sends " starting order " until making driving engine reenter starting state to driving engine, starter.
The control policy of this programme is: behind key switch ignition start driving engine, when automobile speed less than threshold values Vf, when for example the speed of a motor vehicle is less than 2Km/h, be in extremely low moving velocity at this automobile, or automobile is when being in of short duration dead ship condition; Can determine whether by artificial judgement being necessary engine off, reach the purpose that improves fuel economy, reduces exhaust emissions with this; The start-stop operation of driving engine is convenient, fast simultaneously.
Because the control policy of this programme can determine whether by artificial judgement being necessary engine off; For example, when traffic intersection was waited for green light, automobile was in of short duration dead ship condition; This moment, chaufeur can be judged: if red time is longer, chaufeur can be hung the gear of automatic transmission with hydraulic torque converter into N and keep off, when gear surpasses threshold values Tf in the residence time of N retaining, driving engine will enter N retaining flameout state, i.e. engine off automatically by idle state; Be in the driving engine of idling mode in the time of can effectively solving parking of automobile like this to the consumption of fuel oil and the emission problem of tail gas, thereby improve fuel economy and reduce exhaust emissions; Have only 1 to 2 second if red time is short, this moment, chaufeur can be retained in the gear of automatic transmission with hydraulic torque converter D retaining, the start-stop that can avoid driving engine to repeat at short notice like this; Effectively solve driving engine and repeat start-stop at short notice, not only can not improve fuel economy, also can aggravate the problem to fuel oil consumption.In addition, the engine start/stop of this programme is easy to operate; Behind key switch ignition start driving engine, when the speed of a motor vehicle less than threshold values Vf, or the speed of a motor vehicle is zero; As long as gear is hung into N retaining, when gear when the residence time of N retaining surpasses threshold values Tf, driving engine will enter N retaining flameout state automatically; In case and gear leaves N retaining, the then automatic ignition start of driving engine.In addition; the N retaining start stop system of this programme is the judgement artificial according to chaufeur; and manually operate gear by chaufeur and control automobile and whether enter N retaining flameout state; thereby do not need a large amount of intelligent equipments to monitor and protect; do not need the original structure of automobile and equipment are carried out big change yet; it is low that it produces cost, and time-to-market is short, is applicable to popularization and application.
This programme is in the necessary condition that braking mode enters N retaining flameout state and started again as driving engine with vehicle, it is the safety for the operation of raising system, avoid driving engine to be under the N retaining flameout state, gear is moved by false touch and leaves N retaining and enter " D " retaining or " R " retaining, or manual " S1 " in auto-manual when retaining, engine starting, automobile is scurried out suddenly.In addition, because gear hangs after N retaining is neutral, driving engine and drive wheel will be separated, and the brake action of driving engine will no longer be applied on the drive wheel, and automobile is easy to generate movement at this moment; Thereby requiring vehicle to be in braking mode, driving engine can enter N retaining flameout state; Like this after gear hangs N retaining, automobile can slippage; Improve travel safety.
This programme enters greater than threshold values Zf brake system power-assisted degree of vacuum the necessary condition of N retaining flameout state as driving engine; Its reason is generally all have the vacuum servo system in the brake system of present automobile, and guarantee that brake system has enough power-assisted degree of vacuum, still can provide the failure-free brake boost at engine off final vacuum force aid system like this, and then guarantee that brake system can provide the failure-free braking force, improve the traffic safety performance.
This programme enters necessary condition that N keep off flameout state greater than threshold values Fs1 as driving engine with engine speed, is for behind key switch ignition start driving engine, when causing engine off because of vehicle failure; Avoid this programme system to send flame-out instruction to driving engine, make driving engine enter the problem of N retaining flameout state.Because driving engine is under the idling mode, the minimum speed of keeping is usually all greater than 600r/min; So when the rotating speed of driving engine during less than 600r/min, can be judged as driving engine usually and be in flameout state.Thereby the threshold values Fs1 of this programme is set to less than 600r/min.When system detects engine speed greater than threshold values Fs1, can tentatively judge driving engine and be in starting state; So just can avoid behind key switch ignition start driving engine, when causing engine off because of vehicle failure; System sends flame-out instruction to driving engine, makes driving engine enter the problem of N retaining flameout state.
On the other hand, owing to have a following problem in actual use: be under the N retaining flameout state at driving engine, when gear hangs " D " retaining or " R " retaining by " N " retaining, or manual " S1 " in the auto-manual is when keeping off; System will send " cranking signal " to driving engine this moment, though driving engine receives " cranking signal ", may have the problem of engine starting failure; In case and after the engine starting failure, then need chaufeur to kill engine again by key switch, then again by the key switch ignition start; It is just very inconvenient to operate like this.The control method of this programme can effectively address the above problem; This programme is by monitoring following condition: D in real time: vehicle is in braking mode; E: driving engine is in flameout state, and engine speed is less than threshold values Fs; F: the speed of a motor vehicle is less than threshold values Vf; G: gear is in " D " retaining or " R " retaining, or manual " S1 " in auto-manual retaining; When these conditions are satisfied, then system sends " ignition start instruction " to driving engine and makes driving engine reenter starting state.If the engine starting failure is as long as above-mentioned starting conditions satisfies, then system will send " ignition start instruction " until making driving engine reenter starting state to driving engine again.
As preferably, threshold values Tf can set by following any one mode:
Mode one: threshold values Tf was set to more than or equal to 0.3 second;
Mode two: the span of threshold values Tf and arranged the adjustable timing knob can be used for regulating threshold values Tf at auto meter between 0.1 second to 1 second, and adjustable timing knob is provided with scale;
Mode three: be provided with initial value tc and actual acquisition value ts in the system;
Initial value tc is set between 0.1 second to 1 second;
The method to set up of actual acquisition value ts is as follows:
At first, gather driving engine each time and be in N retaining flameout state after gear hung to the used time t1 of D retaining, until collecting n1 t1 value by the N retaining; Calculate the aviation value of n1 t1 value then, and this aviation value is set at actual acquisition value ts;
F/s: before system did not finish setting to actual acquisition value ts, threshold values Tf value was initial value tc;
Subordinate phase: after system finishes setting to actual acquisition value ts for the first time, whether system will provide prompting and " adopt learning functionality that Tf is set "; If "Yes" then threshold values Tf will be set to actual acquisition value ts; If "No" then threshold values Tf will be continued to use original setting value;
Phase III: system resets actual acquisition value ts, and namely system restarts to gather each time driving engine and is in behind the N retaining flameout state to be hung to D by the N retaining and keeps off used time t1, until collecting n1 t1 value; Then, recomputate the aviation value of n1 t1 value, and this aviation value is set to new actual acquisition value ts;
After system obtains new actual acquisition value ts, whether system will provide prompting again and " adopt learning functionality that Tf is set ", if "Yes" then threshold values Tf will be set to new actual acquisition value ts; If "No" then threshold values Tf will be continued to use original setting value;
Quadravalence section: return the phase III, circulate with this.
Mode four: be provided with initial value tc in the system, discriminant value tp and final value tz; Described automatic transmission with hydraulic torque converter TCU is provided with the time acquisition module;
Initial value tc is between 0.3 second to 0.6 second;
The establishing method of discriminant value tp is as follows:
At first, m blocks to D by R and keeps off the time t2 that each time experienced before gathering in the actual process of putting into gear of chaufeur by the time acquisition module; And preceding m blocks to R by D and keeps off the time t3 that each time experienced;
Then, keep t2 and t3 value less than 1 second, and selection therein is near 1 second numerical value, this numerical value is discriminant value tp;
The establishing method of described final value tz is as follows:
As discriminant value tp during more than or equal to 0.3 second, it is identical with discriminant value tp that final value tz is set at; As discriminant value tp during less than 0.3 second, final value tz is set at 0.3 second;
When system did not finish setting to discriminant value tp, threshold values Tf value was initial value tc;
After system finished discriminant value tp and final value tz setting, threshold values Tf value was final value tz.
Mode one: threshold values Tf was set to more than or equal to 0.5 second; Because gear blocks to the D retaining by R or blocked to by D in the process of R retaining, gear will keep off through N; Thereby threshold values Tf is made as more than or equal to 0.5 second; Keep off or blocked to by D in the process of R retaining when the position is blocked to D by R like this, when gear will keep off through N, can not make driving engine enter N retaining flameout state, avoid misoperation.
Mode two: regulate the concrete numerical value of threshold values Tf by adjustable timing knob, be convenient to different chaufeurs like this and regulate threshold values Tf according to the needs of self.
Mode three: because the operating speed difference of different chaufeurs when putting into gear; In order to improve the comformability of system, when avoiding misoperation, farthest guarantee fuel economy, after this programme is in N retaining flameout state by the collection driving engine, chaufeur is hung gear when resetting driving engine to the D retaining by N retaining, and chaufeur is hung to the used time t1 of D retaining by the N retaining in the actual operating process of putting into gear; Calculate aviation value according to several t1 values that collect then, and this aviation value is set at actual acquisition value ts.The put into gear speed of actual acquisition value ts reaction chaufeur in the actual operating process of putting into gear; Thereby after system finishes setting to actual acquisition value ts, whether system will provide prompting and " adopt learning functionality that Tf is set "; Chaufeur can be set the most accurate Tf value according to the actual conditions of self like this, when avoiding misoperation, farthest guarantees fuel economy.
On the other hand, because same car may be changed car owner or replacing chaufeur, thereby system can gather the t1 value again and set next actual acquisition value ts again after the setting of finishing an actual acquisition value ts; After system obtains new actual acquisition value ts, whether system will provide prompting again and " adopt learning functionality that Tf is set "; Even after automobile was changed the car owner or changed chaufeur like this, system will gather and set again; Set the most accurate Tf value according to actual conditions, when avoiding misoperation, farthest guarantee fuel economy.
Mode four: because the operating speed difference of different chaufeurs when putting into gear; In order to improve the comformability of system, when avoiding misoperation, farthest guarantee fuel economy, m blocked to D by R and keeps off the time t4 that each time experienced before this programme was gathered in the actual process of putting into gear of car owner by the time acquisition module; And preceding m blocks to R by D and keeps off the time t5 that each time experienced; Detect car owner's the actual speed of putting into gear.In general blocked to D retaining or blocked to the used time of R retaining by D by R and can not surpass 1 second, thereby will keep t4 and t5 value less than 1 second, these collection values can be thought effective value; In these t4 and t5 value, select the numerical value near 1 second then, and this numerical value is made as discriminant value t2; That is to say that discriminant value t2 is once the longest for being blocked to the D retaining or blocked to the R retaining time spent by D by R in the actual process of putting into gear of this car owner.As discriminant value t2 during more than or equal to 0.3 second, it is identical with discriminant value t2 that final value t3 is set at; Simultaneously with final value t3 as threshold values Tf; Gear blocks to the D retaining by R or is blocked to by D in the process of R retaining like this, and gear can not avoid making driving engine to enter N retaining flameout state greater than threshold values Tf in the time that the N retaining is detained, and produces misoperation.As discriminant value t2 during less than 0.3 second, final value t3 is set at 0.3 second; Also be too little for fear of final value t3, and make threshold values Tf too small; Blocked to D by R at gear and keep off or blocked to by D in the process of R retaining, make driving engine enter N retaining flameout state, produce misoperation.
As preferably, when driving engine is in N retaining flameout state, when the power of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht will be reduced to engine operating state between 30% to 50% of headlight power or the downshift operation.This programme the purpose that can further play energy-saving and emission-reduction is set.
As preferably, when driving engine is in N retaining flameout state, then start the braking function in electronics Parking or the ABS system immediately;
Be in the process of N retaining flameout state at driving engine, when two sudden strain of a muscle buttons are pressed, then remove braking function in the ABS system or the braking function of electronics Parking immediately;
When driving engine reenters starting state by N retaining flameout state, then remove the braking function in electronics Parking or the ABS system immediately.
When driving engine is in N retaining flameout state, then start the braking function in electronics Parking or the ABS system immediately, so not only can improve travel safety, and chaufeur does not need to slam brake pedal always when stopping, and can improve driver comfort.When vehicle failure needs trailer, as long as press two sudden strain of a muscle buttons; Then be in vehicle under the N retaining flameout state and will automatically terminate braking function in the ABS system or the braking function of electronics Parking; Guarantee that the fault car can be dragged away smoothly.
A kind of control method of automobile N retaining start stop system, behind key switch ignition start driving engine, when meeting the following conditions simultaneously:
A: the speed of a motor vehicle is less than threshold values Vf, or the speed of a motor vehicle is zero;
A1: engine speed is greater than threshold values Fs1;
B: vehicle is in braking mode;
B1: brake system power-assisted degree of vacuum is greater than threshold values Zf;
C: battery tension is greater than threshold values Uf;
D: the gear of change-speed box is in the N retaining, and gear surpasses threshold values Tf in the residence time of N retaining; Then driving engine enters N retaining flameout state by running state;
Keep off flameout state when driving engine is in N, and meet the following conditions:
E: vehicle is in braking mode;
F: driving engine is in flameout state, and engine speed is less than threshold values Fs1;
G: the speed of a motor vehicle is less than threshold values Vf;
H: gear is in " D " retaining or " R " retaining, or manual " S1 " in auto-manual retaining; Then driving engine reenters starting state.
As preferably, when driving engine is in N retaining flameout state, then start the braking function in electronics Parking or the ABS system immediately;
Be in the process of N retaining flameout state at driving engine, when two sudden strain of a muscle buttons are pressed, then remove braking function in the ABS system or the braking function of electronics Parking immediately;
When driving engine reenters starting state by N retaining flameout state, then remove the braking function in electronics Parking or the ABS system immediately;
When driving engine is in N retaining flameout state, when the power of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht will be reduced to engine operating state between 30% to 50% of headlight power or the downshift operation.
A kind of control method of automobile N retaining start stop system,
One, behind key switch ignition start driving engine; When meeting the following conditions simultaneously:
A: the speed of a motor vehicle is less than threshold values Vf, or the speed of a motor vehicle is zero;
A1: engine speed is greater than threshold values Fs1;
B: vehicle is in braking mode;
B1: brake system power-assisted degree of vacuum is greater than threshold values Zf;
C: battery tension is greater than threshold values Uf;
D: Engine Coolant Temperature is higher than threshold values Ff;
D1: gearbox oil temperature is higher than threshold values Bf;
E: the gear of change-speed box is in the N retaining, and gear surpasses threshold values Tf in the residence time of N retaining; Then driving engine enters N retaining flameout state by running state;
Two, behind key switch ignition start driving engine, when meeting the following conditions simultaneously:
A: vehicle is in braking mode;
B: driving engine is in flameout state, and engine speed is less than threshold values Fs1;
C: the speed of a motor vehicle is less than threshold values Vf;
D: car door is in closed condition;
E: gear is in " D " retaining or " R " retaining, or manual " S1 " in auto-manual retaining; Then system sends " starting order " until making driving engine reenter starting state to driving engine, starter.
This programme requires Engine Coolant Temperature to be higher than threshold values Ff and gearbox oil temperature is higher than threshold values Bf; Be because the work efficiency of driving engine when being in low-temperature condition is lower, be at driving engine that the frequent starting driving engine is unfavorable for fuel-economizing under the low-temperature condition; And gearbox oil temperature is crossed the low fluid thickness that makes, can influence change-speed box service life.In addition, this programme will be demanded perfection, and the car car door latches and full car vehicle window is closed; Such car door can not be opened because full car car door latches, and when guaranteeing that driving engine is reset by N retaining flameout state, car door keeps closed condition, improves travel safety.
As preferably, when driving engine is in N retaining flameout state, then start the braking function in electronics Parking or the ABS system immediately;
Be in the process of N retaining flameout state at driving engine, when two sudden strain of a muscle buttons are pressed, then remove braking function in the ABS system or the braking function of electronics Parking immediately;
When driving engine reenters starting state by N retaining flameout state, then remove the braking function in electronics Parking or the ABS system immediately;
When driving engine is in N retaining flameout state, when the power of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht will be reduced to engine operating state between 30% to 50% of headlight power or the downshift operation.
The invention has the beneficial effects as follows: easy to use, flexible, reliable, can effectively improve fuel economy, reduce exhaust emissions; And it is low to have the cost of generation, and time-to-market is short, is applicable to the characteristics of popularization and application.
Description of drawings
Fig. 1 is a kind of control flow chart of the control method of a kind of automobile N retaining start stop system of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment the present invention is described in further detail:
Embodiment 1: the control method of a kind of automobile N retaining start stop system, comprise the CAN bus, and be connected Engine ECU and automatic transmission with hydraulic torque converter TCU on the CAN bus and car speed sensor by wire harness.Automatic transmission with hydraulic torque converter TCU is provided with N retaining start-stop control module.N retaining start-stop control module is provided with time-delay control module and time acquisition module.Above-mentioned time-delay control module can also be replaced by time relay.
One, behind key switch ignition start driving engine; When meeting the following conditions simultaneously: (seeing Fig. 1 for details)
A: the speed of a motor vehicle is less than threshold values Vf, or the speed of a motor vehicle is zero, and this threshold values Vf value is 2Km/h.
A1: engine speed is greater than threshold values Fs1; This threshold values Fs1 value is 200r/min.
B: vehicle is in braking mode.
B1: brake system power-assisted degree of vacuum is greater than threshold values Zf; This threshold values Zf value is 0.2bar.
C: battery tension is greater than threshold values Uf; This threshold values Uf value is 7.8V.
D: the gear of change-speed box is in the N retaining, and gear surpasses threshold values Tf in the residence time of N retaining; Then N retaining start-stop control module sends on the Engine ECU by the instruction of will stopping working of CAN bus, and Engine ECU control driving engine enters N retaining flameout state by running state.
Two, behind key switch ignition start driving engine, and meet the following conditions:
A: vehicle is in braking mode;
B: the speed of a motor vehicle is less than threshold values Vf; This threshold values Vf value is 2Km/h.
C: engine speed is less than threshold values Fs1; This threshold values Fs1 value is 200r/min.
D: gear enters " D " retaining or " R " retaining by the N retaining, or manual " S1 " in auto-manual retaining; Then N retaining start-stop control module sends on Engine ECU and the starter " starting order " until driving engine ignition start again by the CAN bus.
Because the minimum speed that driving engine was kept when being in idling mode is usually all greater than 600r/min; So when the rotating speed of driving engine during less than 600r/min, can be judged as driving engine usually and be in flameout state.Above-mentioned threshold values Fs1 can be in 20r/min to 600r/min value.
Above-mentioned threshold values Tf can set by any mode in following four kinds of modes:
Mode one: directly threshold values Tf was set to more than or equal to 0.3 second.
Mode two: the span of threshold values Tf is between 0.1 second to 1 second; And at auto meter the adjustable timing knob can be used for regulating threshold values Tf is set, and adjustable timing knob is provided with scale.Regulate the concrete numerical value of threshold values Tf by adjustable timing knob, be convenient to different chaufeurs like this and regulate threshold values Tf according to the needs of self.
Mode three: be provided with initial value tc and actual acquisition value ts in the system;
Initial value tc is set to 0.6 second;
The method to set up of actual acquisition value ts is as follows:
At first, gather driving engine each time and be in N retaining flameout state after gear hung to the used time t1 of D retaining, until collecting n1 t1 value by the N retaining; Calculate the aviation value of n1 t1 value then, and this aviation value is set at actual acquisition value ts; The preferable range of n1 is between 20 to 100.
F/s: before system did not finish setting to actual acquisition value ts, threshold values Tf value was initial value tc.
Subordinate phase: after system finishes setting to actual acquisition value ts for the first time, whether system will provide prompting and " adopt learning functionality that Tf is set "; If "Yes" then threshold values Tf will be set to actual acquisition value ts; If "No" then threshold values Tf will be continued to use original setting value.
Phase III: system resets actual acquisition value ts, and namely system restarts to gather each time driving engine and is in behind the N retaining flameout state to be hung to D by the N retaining and keeps off used time t1, until collecting n1 t1 value; Then, carry out data processing such as numerical filter, recomputate the aviation value of n1 t1 value, and this aviation value is set to new actual acquisition value ts.The preferable range of n1 is between 10 to 100.
After system obtains new actual acquisition value ts, whether system will provide prompting again and " adopt learning functionality that Tf is set ", if "Yes" then threshold values Tf will be set to new actual acquisition value ts; If "No" then threshold values Tf will be continued to use original setting value.
Quadravalence section: return the phase III, circulate with this.
Mode four: be provided with initial value tc in the system, discriminant value tp and final value tz.Automatic transmission with hydraulic torque converter TCU is provided with the time acquisition module.
Initial value tc is 0.4 second.
The establishing method of discriminant value tp is as follows:
At first, m blocks to D by R and keeps off the time t2 that each time experienced before gathering in the actual process of putting into gear of chaufeur by the time acquisition module; And preceding m blocks to R by D and keeps off the time t3 that each time experienced; The preferable range of m is between 30 to 100.
Then, keep t2 and t3 value less than 1 second, and selection therein is near 1 second numerical value, this numerical value is discriminant value tp.
The establishing method of described final value tz is as follows:
As discriminant value tp during more than or equal to 0.3 second, it is identical with discriminant value tp that final value tz is set at; As discriminant value tp during less than 0.3 second, final value tz is set at 0.3 second.
When system did not finish setting to discriminant value tp, threshold values Tf value was initial value tc; After system finished discriminant value tp and final value tz setting, threshold values Tf value was final value tz.
N of the present invention retaining start stop system control method can be clear and definite the judgement driving engine be normally flame-out by key, still be in N retaining flameout state; If driving engine is normally flame-out by key, even driving engine is in N retaining flameout state, and above-mentioned starting conditions is satisfied, and driving engine can not start yet, must be by the key switch ignition start.
When driving engine is in N retaining flameout state, when the power of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht will be reduced to engine operating state 40% of headlight power or the downshift operation.When driving engine reenters starting state by N retaining flameout state, the state when headlight power recovers the driving engine normal operation.When driving engine is in N retaining flameout state, then start the braking function in electronics Parking or the ABS system immediately.When driving engine reenters starting state by N retaining flameout state, then remove the braking function in electronics Parking or the ABS system immediately.Be in the process of N retaining flameout state at driving engine, when two sudden strain of a muscle buttons are pressed, then remove braking function in the ABS system or the braking function of electronics Parking immediately.Guaranteeing needs under the situation of trailer at vehicle failure, and the fault car can be dragged away smoothly.
N retaining start stop system control method of the present invention is particularly useful for when traffic intersection is waited for green light or traffic congestion, and automobile is under the of short duration dead ship condition and uses.Chaufeur can judge whether that needs make driving engine enter the flame-out state of N retaining according to actual conditions; If need the time of wait longer, then chaufeur only need be hung the gear of automatic transmission with hydraulic torque converter into N, when gear surpasses threshold values Tf in the residence time of N retaining is, driving engine will enter N retaining flameout state, i.e. engine off automatically by idle state.When starting, only gear need be hung into D retaining, the automatic ignition start of driving engine, easy to operate.If the time of waiting for is very short, chaufeur then can be retained in the gear of automatic transmission with hydraulic torque converter the D retaining, and with the start-stop of avoiding driving engine to repeat at short notice, aggravation is to the consumption of fuel oil.
Embodiment 2: a kind of control method of automobile N retaining start stop system, behind key switch ignition start driving engine; When meeting the following conditions simultaneously: (seeing Fig. 1 for details)
A: the speed of a motor vehicle is less than threshold values Vf, or the speed of a motor vehicle is zero; This threshold values Vf is smaller or equal to 2Km/h.
A1: engine speed is greater than threshold values Fs1; This threshold values Fs1 value is 200r/min.
B: vehicle is in braking mode.
B1: brake system power-assisted degree of vacuum is greater than threshold values Zf; This threshold values Zf value is 0.2bar.
C: battery tension is greater than threshold values Uf; This threshold values Uf value is 7.8V.
D: the gear of change-speed box is in the N retaining, and gear surpasses threshold values Tf in the residence time of N retaining; Then driving engine enters N retaining flameout state by running state.
Keep off flameout state when driving engine is in N, and meet the following conditions:
E: vehicle is in braking mode.
F: driving engine is in flameout state, and engine speed is less than threshold values Fs1.Threshold values Fs1 value is 200r/min.
G: the speed of a motor vehicle is less than threshold values Vf.Threshold values Vf value is 2km/h.
H: gear is in " D " retaining or " R " retaining, or manual " S1 " in auto-manual retaining; Then system makes driving engine reenter starting state to driving engine, starter transmission " starting order ".
Because the minimum speed that driving engine was kept when being in idling mode is usually all greater than 600r/min; So when the rotating speed of driving engine during less than 600r/min, can be judged as driving engine usually and be in flameout state.Above-mentioned threshold values Fs1 can be in 20r/min to 600r/min value.
When driving engine is in N retaining flameout state, when the power of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht will be reduced to engine operating state 38% of headlight power or the downshift operation.When driving engine reenters starting state by N retaining flameout state, the state when headlight power recovers the driving engine normal operation.When driving engine is in N retaining flameout state, then start the braking function in electronics Parking or the ABS system immediately.When driving engine reenters starting state by N retaining flameout state, then remove the braking function in electronics Parking or the ABS system immediately.Be in the process of N retaining flameout state at driving engine, when two sudden strain of a muscle buttons are pressed, then remove braking function in the ABS system or the braking function of electronics Parking immediately.Guaranteeing needs under the situation of trailer at vehicle failure, and the fault car can be dragged away smoothly.The setting means of the threshold values Tf of present embodiment is with reference to embodiment 1.
Embodiment 3: a kind of control method of automobile N retaining start stop system, comprise the CAN bus, be connected Engine ECU and automatic transmission with hydraulic torque converter TCU on the CAN bus by wire harness, and monitoring sensors such as the speed of a motor vehicle, ABS system, electronics parking brake, brake pedal, door lock, vehicle window, headlight, battery tension, Engine Coolant Temperature height and gearbox oil temperature.Automatic transmission with hydraulic torque converter TCU is provided with N retaining start-stop control module.N retaining start-stop control module is provided with time-delay control module and time acquisition module.Above-mentioned time-delay control module can also be replaced by time relay.
One, behind key switch ignition start driving engine, when meeting the following conditions simultaneously: (seeing Fig. 1 for details)
A: the speed of a motor vehicle is less than threshold values Vf, or the speed of a motor vehicle is zero.This threshold values Vf value is 2Km/h.
A1: engine speed is greater than threshold values Fs1; This threshold values Fs1 value is 200r/min.
B: vehicle is in braking mode.
B1: brake system power-assisted degree of vacuum is greater than threshold values Zf; This threshold values Zf value is 0.2bar.
C: battery tension is greater than threshold values Uf; This threshold values Uf value is 7.8V.
D: Engine Coolant Temperature is higher than threshold values Ff; This threshold values Ff value is 60 degree.
D1: gearbox oil temperature is higher than threshold values Bf; This threshold values Bf value is 60 degree.
E: the gear of change-speed box is in the N retaining, and gear surpasses threshold values Tf in the residence time of N retaining; Then the N on change-speed box TCU retaining start-stop control module sends on the Engine ECU by the instruction of will stopping working of CAN bus, and Engine ECU control driving engine enters N retaining flameout state by running state.
Two, behind key switch ignition start driving engine, when meeting the following conditions simultaneously:
A: vehicle is in braking mode.
B: driving engine is in flameout state, and engine speed is less than threshold values Fs1.Threshold values Fs1 value is 200r/min.
C: the speed of a motor vehicle is less than threshold values Vf.Threshold values Vf value is 2km/h.
D: car door is in closed condition.
E: gear is in " D " retaining or " R " retaining, or manual " S1 " in auto-manual retaining;
Then N retaining start-stop control module sends on Engine ECU and the starter " starting order " until driving engine ignition start again by the CAN bus.
Because the minimum speed that driving engine was kept when being in idling mode is usually all greater than 600r/min; So when the rotating speed of driving engine during less than 600r/min, can be judged as driving engine usually and be in flameout state.Above-mentioned threshold values Fs1 can be in 20r/min to 600r/min value.
When driving engine is in N retaining flameout state, when the power of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht will be reduced to engine operating state 40% of headlight power or the downshift operation.When driving engine is in N retaining flameout state, then start the braking function in electronics Parking or the ABS system immediately.When driving engine reenters starting state by N retaining flameout state, then remove the braking function in electronics Parking or the ABS system immediately, the state when car light recovers the driving engine normal operation simultaneously.Be in the process of N retaining flameout state at driving engine, when two sudden strain of a muscle buttons are pressed, then remove the braking function in electronics Parking or the ABS system.The setting means of the threshold values Tf of present embodiment is with reference to embodiment 1.
Embodiment 4: a kind of control method of automobile N retaining start stop system,
One, behind key switch ignition start driving engine, when meeting the following conditions simultaneously:
A: the speed of a motor vehicle is less than threshold values Vf, or the speed of a motor vehicle is zero.This threshold values Vf value is 2Km/h.
B: vehicle is in braking mode.
B1: brake system power-assisted degree of vacuum is greater than threshold values Zf; This threshold values Zf value is 0.2bar.
C: the gear of change-speed box is in the N retaining, and gear surpasses threshold values Tf in the residence time of N retaining; Then driving engine enters N retaining flameout state by running state.
Two, behind key switch ignition start driving engine, when meeting the following conditions simultaneously:
A: vehicle is in braking mode.
B: driving engine is in flameout state, and engine speed is less than threshold values Fs1; This threshold values Fs1 value is 200r/min.
C: the speed of a motor vehicle is less than threshold values Vf; This threshold values Vf value is 2Km/h.
D: gear is in " D " retaining or " R " retaining, or manual " S1 " in auto-manual retaining; Then system sends " starting order " to driving engine, starter, until making driving engine reenter starting state.
Because the minimum speed that driving engine was kept when being in idling mode is usually all greater than 600r/min; So when the rotating speed of driving engine during less than 600r/min, can be judged as driving engine usually and be in flameout state.Above-mentioned threshold values Fs1 can be in 50r/min to 600r/min value.When driving engine is in N retaining flameout state, when the power of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht will be reduced to engine operating state 38% of headlight power or the downshift operation.When driving engine reenters starting state by N retaining flameout state, the state when headlight power recovers the driving engine normal operation.When driving engine is in N retaining flameout state, then start the braking function in electronics Parking or the ABS system immediately.When driving engine reenters starting state by N retaining flameout state, then remove the braking function in electronics Parking or the ABS system immediately.Be in the process of N retaining flameout state at driving engine, when two sudden strain of a muscle buttons are pressed, then remove braking function in the ABS system or the braking function of electronics Parking immediately.Guaranteeing needs under the situation of trailer at vehicle failure, and the fault car can be dragged away smoothly.The setting means of the threshold values Tf of present embodiment is with reference to embodiment 1.
Embodiment 5: a kind of control method of automobile N retaining start stop system, comprise the CAN bus, be connected Engine ECU and automatic transmission with hydraulic torque converter TCU on the CAN bus by wire harness, and monitoring sensors such as the speed of a motor vehicle, ABS system, electronics parking brake, brake pedal, door lock, vehicle window, headlight, battery tension, Engine Coolant Temperature height and gearbox oil temperature.Automatic transmission with hydraulic torque converter TCU is provided with N retaining start-stop control module.N retaining start-stop control module is provided with time-delay control module and time acquisition module.Above-mentioned time-delay control module can also be replaced by time relay.
One, behind key switch ignition start driving engine, when meeting the following conditions simultaneously: (seeing Fig. 1 for details)
A: the speed of a motor vehicle is less than threshold values Vf, or the speed of a motor vehicle is zero.This threshold values Vf value is 2Km/h.
A1: engine speed is greater than threshold values Fs1; This threshold values Fs1 value is 200r/min.
B: vehicle is in braking mode.
B1: brake system power-assisted degree of vacuum is greater than threshold values Zf; This threshold values Zf value is 0.2bar.
C: battery tension is greater than threshold values Uf; This threshold values Uf value is 7.8V.
D: Engine Coolant Temperature is higher than threshold values Ff; This threshold values Ff value is 60 degree.
D1: gearbox oil temperature is higher than threshold values Bf; This threshold values Bf value is 60 degree.
E: full car car door latches; When system detected car door and do not latch, system sends instruction latched car door automatically.
F: full car vehicle window is closed; When system detected vehicle window and do not close, system sends instruction closed vehicle window automatically.
G: the gear of change-speed box is in the N retaining, and gear surpasses threshold values Tf in the residence time of N retaining; Then the N on change-speed box TCU retaining start-stop control module sends on the Engine ECU by the instruction of will stopping working of CAN bus, and Engine ECU control driving engine enters N retaining flameout state by running state.
Two, behind key switch ignition start driving engine; When meeting the following conditions simultaneously:
A: battery tension is greater than threshold values Uf; This threshold values Uf value is 7.8V.
B: Engine Coolant Temperature is higher than threshold values Ff; This threshold values Ff value is 60 degree.
B1: gearbox oil temperature is higher than threshold values Bf; This threshold values Bf value is 60 degree.
C: vehicle is in braking mode;
D: driving engine is in flameout state, and engine speed is less than threshold values Fs1.Threshold values Fs1 value is 500r/min.
E: the speed of a motor vehicle is less than threshold values Vf.Threshold values Vf value is 2km/h.
F: car door is in closed condition.
G: gear is in " D " retaining or " R " retaining, or manual " S1 " in auto-manual retaining; Then N retaining start-stop control module sends on Engine ECU and the starter " starting order " until driving engine ignition start again by the CAN bus.
Because the minimum speed that driving engine was kept when being in idling mode is usually all greater than 600r/min; So when the rotating speed of driving engine during less than 600r/min, can be judged as driving engine usually and be in flameout state.Above-mentioned threshold values Fs1 can be in 20r/min to 600r/min value.When driving engine is in N retaining flameout state, when the power of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht will be reduced to engine operating state 38% of headlight power or the downshift operation.When driving engine is in N retaining flameout state, then start the braking function in electronics Parking or the ABS system immediately.When driving engine reenters starting state by N retaining flameout state, then remove the braking function in electronics Parking or the ABS system immediately.Be in the process of N retaining flameout state at driving engine, when two sudden strain of a muscle buttons are pressed, then remove the braking function in electronics Parking or the ABS system.When meeting the following conditions: " vehicle is in braking mode ", " driving engine is in flameout state; and engine speed is less than threshold values Fs ", " speed of a motor vehicle is less than threshold values Vf ", " gear is in " D " retaining or " R " retaining; or manual " S1 " retaining in the auto-manual ", the state during car light recovery driving engine normal operation then.When system detects car door and do not close, will send audible and visible alarm." full car car door latches " in the present embodiment and " full car vehicle window is closed " enter N retaining flameout state as driving engine necessary condition; When system detected car door and do not latch, system sends instruction latched car door automatically, guarantees that full car car door is in the state of latching.When system detected vehicle window and do not close, system sends instruction closed vehicle window automatically, guarantees that full car vehicle window is in closed condition.
Annotate: " threshold values " among the present invention refers to the predefined default limit value of each class variable.
Claims (9)
1. the control method of an automobile N retaining start stop system is characterized in that,
One, behind key switch ignition start driving engine, when meeting the following conditions simultaneously:
A: the speed of a motor vehicle is less than threshold values Vf, or the speed of a motor vehicle is zero;
A1: engine speed is greater than threshold values Fs1;
B: vehicle is in braking mode;
B1: brake system power-assisted degree of vacuum is greater than threshold values Zf;
C: battery tension is greater than threshold values Uf;
D: the gear of change-speed box is in the N retaining, and gear surpasses threshold values Tf in the residence time of N retaining; Then driving engine enters N retaining flameout state by running state;
Two, behind key switch ignition start driving engine, and meet the following conditions:
A: vehicle is in braking mode;
B: the speed of a motor vehicle is less than threshold values Vf;
C: engine speed is less than threshold values Fs1;
D: gear is entered by the N retaining " D " retaining or " R " retaining, or manual " S1 " in auto-manual retaining; Then system sends " starting order " until making driving engine reenter starting state to driving engine, starter.
2. a kind of automobile N according to claim 1 keeps off the control method of start stop system, it is characterized in that described threshold values Tf can set by following any one mode:
Mode one: threshold values Tf was set to more than or equal to 0.3 second;
Mode two: the span of threshold values Tf and arranged the adjustable timing knob can be used for regulating threshold values Tf at auto meter between 0.1 second to 1 second, and adjustable timing knob is provided with scale;
Mode three: be provided with initial value tc and actual acquisition value ts in the system;
Initial value tc is set between 0.1 second to 1 second;
The method to set up of actual acquisition value ts is as follows:
At first, gather driving engine each time and be in N retaining flameout state after gear hung to the used time t1 of D retaining, until collecting n1 t1 value by the N retaining; Calculate the aviation value of n1 t1 value then, and this aviation value is set at actual acquisition value ts;
F/s: before system did not finish setting to actual acquisition value ts, threshold values Tf value was initial value tc;
Subordinate phase: after system finishes setting to actual acquisition value ts for the first time, whether system will provide prompting and " adopt measured value that Tf is set "; If "Yes" then threshold values Tf will be set to actual acquisition value ts; If "No" then threshold values Tf will be continued to use original setting value;
Phase III: system resets actual acquisition value ts, and namely system restarts to gather each time driving engine and is in behind the N retaining flameout state to be hung to D by the N retaining and keeps off used time t1, until collecting n1 t1 value; Then, recomputate the aviation value of n1 t1 value, and this aviation value is set to new actual acquisition value ts;
After system obtains new actual acquisition value ts, whether system will provide prompting again and " adopt measured value that Tf is set ", if "Yes" then threshold values Tf will be set to new actual acquisition value ts; If "No" then threshold values Tf will be continued to use original setting value;
Quadravalence section: return the phase III, circulate with this;
Mode four: be provided with initial value tc in the system, discriminant value tp and final value tz; Described automatic transmission with hydraulic torque converter TCU is provided with the time acquisition module;
Initial value tc is between 0.3 second to 0.6 second;
The establishing method of discriminant value tp is as follows:
At first, m blocks to D by R and keeps off the time t2 that each time experienced before gathering in the actual process of putting into gear of chaufeur by the time acquisition module; And preceding m blocks to R by D and keeps off the time t3 that each time experienced;
Then, keep t2 and t3 value less than 1 second, and selection therein is near 1 second numerical value, this numerical value is discriminant value tp;
The establishing method of described final value tz is as follows:
As discriminant value tp during more than or equal to 0.3 second, it is identical with discriminant value tp that final value tz is set at; As discriminant value tp during less than 0.3 second, final value tz is set at 0.3 second;
When system did not finish setting to discriminant value tp, threshold values Tf value was initial value tc;
After system finished discriminant value tp and final value tz setting, threshold values Tf value was final value tz.
3. a kind of automobile N according to claim 1 and 2 keeps off the control method of start stop system, it is characterized in that, when driving engine is in N retaining flameout state, when the power of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht will be reduced to engine operating state between 30% to 50% of headlight power or the downshift operation.
4. the control method of a kind of automobile N retaining start stop system according to claim 1 and 2 is characterized in that: when driving engine is in N retaining flameout state, then start the braking function in electronics Parking or the ABS system immediately;
Be in the process of N retaining flameout state at driving engine, when two sudden strain of a muscle buttons are pressed, then remove braking function in the ABS system or the braking function of electronics Parking immediately;
When driving engine reenters starting state by N retaining flameout state, then remove the braking function in electronics Parking or the ABS system immediately.
5. the control method of an automobile N retaining start stop system is characterized in that, behind key switch ignition start driving engine; When meeting the following conditions simultaneously:
A: the speed of a motor vehicle is less than threshold values Vf, or the speed of a motor vehicle is zero;
A1: engine speed is greater than threshold values Fs1;
B: vehicle is in braking mode;
B1: brake system power-assisted degree of vacuum is greater than threshold values Zf;
C: battery tension is greater than threshold values Uf;
D: the gear of change-speed box is in the N retaining, and gear surpasses threshold values Tf in the residence time of N retaining; Then driving engine enters N retaining flameout state by running state;
Keep off flameout state when driving engine is in N, and meet the following conditions:
E: vehicle is in braking mode;
F: driving engine is in flameout state, and engine speed is less than threshold values Fs1;
G: the speed of a motor vehicle is less than threshold values Vf;
H: gear is in " D " retaining or " R " retaining, or manual " S1 " in auto-manual retaining; Then driving engine reenters starting state.
6. the control method of a kind of automobile N retaining start stop system according to claim 5 is characterized in that: when driving engine is in N retaining flameout state, then start the braking function in electronics Parking or the ABS system immediately;
Be in the process of N retaining flameout state at driving engine, when two sudden strain of a muscle buttons are pressed, then remove braking function in the ABS system or the braking function of electronics Parking immediately;
When driving engine reenters starting state by N retaining flameout state, then remove the braking function in electronics Parking or the ABS system immediately;
When driving engine is in N retaining flameout state, when the power of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht will be reduced to engine operating state between 30% to 50% of headlight power or the downshift operation.
7. the control method of an automobile N retaining start stop system is characterized in that,
One, behind key switch ignition start driving engine; When meeting the following conditions simultaneously:
A: the speed of a motor vehicle is less than threshold values Vf, or the speed of a motor vehicle is zero;
A1: engine speed is greater than threshold values Fs1;
B: vehicle is in braking mode;
B1: brake system power-assisted degree of vacuum is greater than threshold values Zf;
C: battery tension is greater than threshold values Uf;
D: Engine Coolant Temperature is higher than threshold values Ff;
D1: gearbox oil temperature is higher than threshold values Bf;
E: the gear of change-speed box is in the N retaining, and gear surpasses threshold values Tf in the residence time of N retaining; Then driving engine enters N retaining flameout state by running state;
Two, behind key switch ignition start driving engine, when meeting the following conditions simultaneously:
A: vehicle is in braking mode;
B: driving engine is in flameout state, and engine speed is less than threshold values Fs1;
C: the speed of a motor vehicle is less than threshold values Vf;
D: car door is in closed condition;
E: gear is in " D " retaining or " R " retaining, or manual " S1 " in auto-manual retaining;
Then system sends " starting order " until making driving engine reenter starting state to driving engine, starter.
8. the control method of a kind of automobile N retaining start stop system according to claim 7 is characterized in that, when driving engine is in N retaining flameout state, then starts the braking function in electronics Parking or the ABS system immediately;
Be in the process of N retaining flameout state at driving engine, when two sudden strain of a muscle buttons are pressed, then remove braking function in the ABS system or the braking function of electronics Parking immediately;
When driving engine reenters starting state by N retaining flameout state, then remove the braking function in electronics Parking or the ABS system immediately;
When driving engine is in N retaining flameout state, when the power of Der Scheinwerfer mit FernlichtAbblendlichtStandlicht will be reduced to engine operating state between 30% to 50% of headlight power or the downshift operation.
9. the control method of an automobile N retaining start stop system is characterized in that,
One, behind key switch ignition start driving engine, when meeting the following conditions simultaneously:
A: the speed of a motor vehicle is less than threshold values Vf, or the speed of a motor vehicle is zero;
B: vehicle is in braking mode;
B1: brake system power-assisted degree of vacuum is greater than threshold values Zf;
C: the gear of change-speed box is in the N retaining, and gear surpasses threshold values Tf in the residence time of N retaining; Then driving engine enters N retaining flameout state by running state;
Two, behind key switch ignition start driving engine, when meeting the following conditions simultaneously:
A: vehicle is in braking mode;
B: driving engine is in flameout state, and engine speed is less than threshold values Fs1;
C: the speed of a motor vehicle is less than threshold values Vf;
D: gear is in " D " retaining or " R " retaining, or manual " S1 " in auto-manual retaining; Then system sends " starting order " until making driving engine reenter starting state to driving engine, starter.
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