CN106043278B - A kind of transient dynamics optimal control method - Google Patents
A kind of transient dynamics optimal control method Download PDFInfo
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- CN106043278B CN106043278B CN201610520100.6A CN201610520100A CN106043278B CN 106043278 B CN106043278 B CN 106043278B CN 201610520100 A CN201610520100 A CN 201610520100A CN 106043278 B CN106043278 B CN 106043278B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W2050/0001—Details of the control system
- B60W2050/0043—Signal treatments, identification of variables or parameters, parameter estimation or state estimation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0676—Engine temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/10—Accelerator pedal position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/16—Ratio selector position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0666—Engine torque
Abstract
The invention discloses a kind of transient dynamics optimal control methods, controller receives accelerator pedal signal, gearbox-gear signal, engine state monitor sensor signal, and judged whether to meet transient dynamics optimization function unlocking condition according to above-mentioned signal, if meeting entered function state of activation, engine power output external characteristic limits value is decontroled at default safety margin, decontrols external characteristics torque limit to improve the response that motor instant exports demand；When unlocking condition is to be unsatisfactory for, then exit function activates, and engine power output restores limited to ensure safety；Instantaneous function, which can be also reactivated, when function, which is in, exits state of activation, after transient dynamics optimization function unlocking condition meets again has met user's use demands.Cost of implementation of the present invention is low, reliability is high, applied widely, can excavate engine power output potentiality to the greatest extent in the case where not influencing service life of aeroengine and conditions of discharge and export demand to meet user's transient dynamics.
Description
Technical field
The invention belongs to technical field of automotive electronics, and in particular to a kind of transient dynamics optimal control method.
Background technology
Automatic car stopping is driven there are one the custom formed is needed, seeks to the gear of association's Throttle Opening Control gearbox.No
Same throttle dynamics, the gear that gearbox oneself selects under same speed are different.Such as in 60km/h, fluid drive
It is the light and heavy degree that motorist steps on the throttle that the optional gear of case, which has 2 gears, 3 gears or 4 gears, foundation,.When normal driving, gearbox
Generally upper soon to arrive highest gear, on the one hand such setting is that in addition driving can be made more to smooth out to be fuel-efficient.Only in throttle
When dynamics is heavier, gearbox can just postpone upshift, to obtain more power.
The work rule of automatic gear-box is exactly：Usually focus on fuel-efficient, shift rotating speed can be just improved when needing.In test run text
Zhang Zhong, we can frequently refer to " Kickdown " word, what is KickdownIn brief, it is exactly a foot by throttle
It steps on to maximum action.This is a strong instruction for obtaining maximum power for gearbox, as long as rotating speed is not high at this time,
Any automatic gear-box can all drop a gear even two gears to obtain the more powerful power of engine automatically.
And the application range of the prior art is small, is now detected in the automatic catch road road vehicle of luxurious configuration, control object limitation
It exports in the peak torque that automatic gear-box and " Kick down " are obtained and is limited by engine test bench characteristic, also 10%
Not the shortcomings that engine power design engineering surplus is not mined out.
Thus need offer a kind of applied widely, technically securely and reliably, application cost is cheap on suitable opportunity
Power output potentiality are excavated to meet user demand and not influence the transient dynamics prioritization scheme of engine life.
Invention content
The present invention provides a kind of transient dynamics optimal control method, and this method is applied widely, can be safe and reliable
On suitable opportunity, engine power output potentiality are excavated to meet user demand.When user have it is bigger instantaneous dynamic
When power exports demand, complete machine transient dynamics response is improved by decontroling external characteristics torque limit.
The technical solution adopted by the present invention is：
A kind of transient dynamics optimal control method, including steps are as follows：
(1) transient dynamics are received and optimize open command, function init state enables and adds up activationary time T1=0, exits
Wait for time T2=0；
(2) controller receives accelerator pedal signal, gearbox-gear signal, engine state monitor sensor signal, and
Judged whether to meet transient dynamics optimization function unlocking condition according to above-mentioned signal, enters step (3) if meeting, otherwise continue
Monitoring judges；
(3) entered function state of activation is decontroled engine power output external characteristic limits value at default safety margin, is put
Over characteristic torque limit, improve motor instant and export demand response, and accumulative activationary time T1；
(4) when function is active and transient dynamics optimization function unlocking condition becomes being unsatisfactory for from meeting, then
Exit function activates, and engine power output restores limited, and accumulating function exits stand-by period T2；
(5) if function, which is in, exits state of activation, transient dynamics optimization function unlocking condition meets again, then instantaneous function
It is reactivated.
Preferably, transient dynamics described in step (2) optimize function unlocking condition, specially：
(2.1) judge that the transient dynamics of user export demand according to accelerator open degree, opened when accelerator open degree is more than default throttle
Angle value T3, then demand；
(2.2) judge whether safely engine improves power output at this time by engine speed, engine temperature, work as hair
It is when motivation rotating speed is less than preset rotation speed value T4, engine temperature is less than preset temperature value T5, then safe；
(2.3) it presets and judges whether vehicle is needed really through activation function by monitoring the currently practical torque value of engine
Power is promoted, if currently practical torque value is less than default external characteristics torque limit T8, vehicle and actually and is not required at this time
Function is activated to decontrol torque limit；
(2.4) activationary time T1 added up to function, exit the judgement of stand-by period T2, preset when accumulative activationary time T1 is less than
Activationary time value T6 exits stand-by period T2 and exits latency value T7 less than default, then meets the requirements.
Preferably, further include judging that engine improves at this time by engine power, motor torque in the step 2.2
Power output whether when engine power is less than predetermined power value, motor torque is less than preset torque value then pacify by safety
Entirely.
Preferably, further include judging the currently active time, super external characteristics time in the step 2.4, when the currently active
Time, super external characteristics time are less than corresponding preset time value, then meet the requirements.
Compared with prior art, the present invention provides a kind of applied widely, and technically securely and reliably, application cost is cheap
Power output potentiality are excavated on suitable opportunity to meet user demand and not influence the transient dynamics optimization of engine life
Scheme.
Description of the drawings
Fig. 1 is the flow chart of embodiments of the present invention.
Specific implementation mode
The specific implementation mode of the present invention is illustrated below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of transient dynamics optimal control method is provided, including steps are as follows：
(1) transient dynamics are received and optimize open command, function init state enables and adds up activationary time T1=0, exits
Wait for time T2=0, which can also be preset as other initial values as needed；
(2) controller receives accelerator pedal signal, gearbox-gear signal, engine state monitor sensor signal, and
Judged whether to meet transient dynamics optimization function unlocking condition according to above-mentioned signal, enters step (3) if meeting, otherwise continue
Monitoring judges, and unlocking condition circular test in preset time judges；
(3) entered function state of activation is decontroled engine power output external characteristic limits value at default safety margin, is put
Over characteristic torque limit to improve the response that motor instant exports demand, and accumulative activationary time T1；
(4) when function is active and transient dynamics optimization function unlocking condition becomes being unsatisfactory for from meeting,
Then exit function activates, and engine power output restores limited to ensure safety, and the function of adding up this driving cycle exits
Stand-by period T2；
(5) when function, which is in, exits state of activation, transient dynamics optimization function unlocking condition is instantaneous after meeting again
Function, which can be also reactivated, has met user's use demands.
Preferably, transient dynamics described in step (2) optimize function unlocking condition, specially：
(2.1) judge that the transient dynamics of user export demand according to accelerator open degree, when accelerator open degree is more than preset value T3=
80%, then think demand；
(2.2) judge whether safely engine improves power output at this time by engine speed, engine temperature, work as hair
When motivation rotating speed is less than preset rotation speed value T4=1800r/min, engine temperature is less than T5=80 DEG C of preset temperature value, then think
Safety；
(2.3) judge whether vehicle needs to carry by activation function really by monitoring the currently practical torque value of engine
Power is risen, if currently practical torque value is less than default external characteristics torque limit T8=70Nm, vehicle and actually not at this time
Activation function is needed to decontrol torque limit；
(2.4) activationary time T1 is added up to function, exits the judgement of stand-by period T2, preset when accumulative activationary time T1 is less than
Activationary time value T6=30s exits stand-by period T2 and exits latency value T7=25s less than default, then meets the requirements.
The numerical value of each parameter can also be preset as other values without influencing present invention protection model as needed in above-mentioned steps (2)
It encloses, present embodiment is merely illustrative and has not constituted limiting the scope of the invention.
Preferably, further include judging that engine improves at this time by engine power, motor torque in the step 2.2
Power output whether when engine power is less than predetermined power value, motor torque is less than predetermined power value then pacify by safety
Entirely.
Preferably, further include judging the currently active time, super external characteristics time in the step 2.4, when the currently active
Time, super external characteristics time are less than accordingly default activationary time, super external characteristics time value, then meet the requirements.
The present invention is by judging when user has bigger transient dynamics to export demand, by decontroling external characteristics
Torque limit improves complete machine transient dynamics response, provide it is a kind of applied widely, can be safe and reliable suitable
Opportunity, excavate engine power output potentiality and meet the transient dynamics prioritization scheme of user demand.
It note that and above are only presently preferred embodiments of the present invention, be not used to limit the range of the implementation of the present invention, i.e., greatly
It is all according to simple equivalent changes and modifications made by scope of the present invention patent and invention description content, all still belong to it is of the invention specially
In the range of profit covers.
Claims (4)
1. a kind of transient dynamics optimal control method, which is characterized in that including steps are as follows：
(1) transient dynamics are received and optimize open command, function init state enables and adds up activationary time T1=0, when exiting waiting
Between T2=0；
(2) controller reception accelerator pedal signal, gearbox-gear signal, engine state monitor sensor signal, and according to
Above-mentioned signal judges whether to meet transient dynamics optimization function unlocking condition, enters step (3) if meeting, otherwise continue to monitor
Judge；
(3) entered function state of activation is decontroled engine power output external characteristic limits value at default safety margin, is decontroled outer
Characteristic torque limit improves motor instant and exports demand response, and accumulative activationary time T1；
(4) it when function is active and transient dynamics optimization function unlocking condition becomes being unsatisfactory for from meeting, then exits
Function activation, engine power output restore limited, and accumulating function exits stand-by period T2；
(5) if function, which is in, exits state of activation, transient dynamics optimization function unlocking condition meets again, then instantaneous function is weighed
New activation.
2. transient dynamics optimal control method as described in claim 1, which is characterized in that transient dynamics described in step (2)
It includes following requirement to optimize function unlocking condition, specially：
(2.1) judge that the transient dynamics of user export demand according to accelerator open degree, when accelerator open degree is more than default accelerator open degree value
T3, then demand；
(2.2) judge whether safely engine improves power output at this time by engine speed, engine temperature, work as engine
It is when rotating speed is less than preset rotation speed value T4, engine temperature is less than preset temperature value T5, then safe；
(2.3) by monitoring the currently practical torque value of engine, to judge whether vehicle needs to be promoted by activation function really dynamic
Power vehicle and does not need to actually activate work(at this time if currently practical torque value is less than default external characteristics torque limit T8
Torque limit can be decontroled；
(2.4) activationary time T1 added up to function, exit the judgement of stand-by period T2, when accumulative activationary time T1 is less than default activation
Time value T6 exits stand-by period T2 and exits latency value T7 less than default, then meets the requirements.
3. transient dynamics optimal control method as claimed in claim 2, it is characterised in that：Further include leading in the step 2.2
Cross engine power, motor torque judge engine improve at this time power output whether safety, when engine power be less than it is pre-
It is if performance number, motor torque are less than preset torque value, then safe.
4. transient dynamics optimal control method as claimed in claim 2, it is characterised in that：Further include pair in the step 2.4
The currently active time, super external characteristics time judge, are less than corresponding preset time value when the currently active time, super external characteristics time,
Then meet the requirements.
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| CN111824119B (en) * | 2020-06-18 | 2021-10-12 | 杭州赫日新能源科技有限公司 | Instantaneous optimization control method for range extender |
| CN114576018A (en) * | 2020-11-30 | 2022-06-03 | 长城汽车股份有限公司 | Engine torque transient response method and device, electronic equipment and storage medium |
| CN113401106B (en) * | 2021-06-30 | 2022-08-09 | 重庆长安汽车股份有限公司 | Control method of power output |
| CN114439916A (en) * | 2022-01-21 | 2022-05-06 | 东风康明斯发动机有限公司 | Control method for providing stable kickwon signal for gearbox |
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| JPH1148831A (en) * | 1997-08-01 | 1999-02-23 | Nissan Motor Co Ltd | Output control device for vehicle |
| JP3671699B2 (en) * | 1998-10-12 | 2005-07-13 | 日産自動車株式会社 | Vehicle driving force control device |
| DE102004052786A1 (en) * | 2004-10-30 | 2006-05-24 | Volkswagen Ag | Method for controlling a pushing operation of a hybrid vehicle and hybrid vehicle |
| CN101392691B (en) * | 2008-11-04 | 2016-02-24 | 三一重工股份有限公司 | Engineering vehicle power system matching method and system |
| CN201516845U (en) * | 2009-11-18 | 2010-06-30 | 三一汽车制造有限公司 | Single-shot automobile crane and multi-state control system thereof |
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