CN106043278A - Instantaneous dynamic optimization control method - Google Patents

Instantaneous dynamic optimization control method Download PDF

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Publication number
CN106043278A
CN106043278A CN201610520100.6A CN201610520100A CN106043278A CN 106043278 A CN106043278 A CN 106043278A CN 201610520100 A CN201610520100 A CN 201610520100A CN 106043278 A CN106043278 A CN 106043278A
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function
engine
value
time
transient dynamics
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CN201610520100.6A
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Chinese (zh)
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CN106043278B (en
Inventor
朱荣
陈俊红
陈中柱
安利强
冯静
叶宇
黄永鹏
刘易
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Guangxi Yuchai Machinery Co Ltd
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Guangxi Yuchai Machinery Co Ltd
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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
    • 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
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Human Computer Interaction (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention discloses an instantaneous dynamic optimization control method. The instantaneous dynamic optimization control method comprises the following steps of receiving an accelerator pedal signal, a gearbox gear signal, and an engine state monitoring sensor signal by a controller; judging whether the opening condition for an instantaneous dynamic optimization function is met or not according to the signals; if yes, entering a function activation state, releasing a power output external characteristic limiting value of an engine to a preset safety margin, and releasing an external characteristic torque limit, so that the responsiveness of a transient output requirement of the engine is improved; else, exiting the function activation state, and restoring the limited state of power output of the engine, so that the safety is guaranteed; and when the function is under a state of exiting activation, and after the opening condition for the instantaneous dynamic optimization function is met again, re-activating the instantaneous function to meet use requirements of a user. The instantaneous dynamic optimization control method disclosed by the invention is low in realizing cost, high in reliability and wide in application scope, and can furthest tap the existing potential of the power output of the engine under the premise that the service life and the discharging conditions of the engine are not influenced, so that the instantaneous power output requirements of the user are met.

Description

A kind of transient dynamics optimal control method
Technical field
The invention belongs to technical field of automotive electronics, be specifically related to a kind of transient dynamics optimal control method.
Background technology
Drive the custom that automatic car stopping has needs to form, it is simply that learn with the gear of Throttle Opening Control change speed gear box.No Same throttle dynamics, the gear that change speed gear box oneself selects under equal speed is different.Such as when 60km/h, fluid drive The optional gear of case has 2 gears, 3 gears or 4 gears, and foundation is the light and heavy degree that motorist steps on the throttle.During normal driving, change speed gear box General upper to top gear position soon, on the one hand such setting is for fuel-efficient, and driving additionally can be made more to smooth out.Only at throttle When dynamics is heavier, change speed gear box just can postpone upshift, to obtain more power.
The work rule of automatic gear-box is exactly: focuses on fuel-efficient at ordinary times, just can improve gearshift rotating speed when needing.At test run literary composition Zhang Zhong, we can frequently refer to " Kickdown " word, and what is Kickdown？In brief, it is simply that a foot is by throttle Step on to maximum action.For change speed gear box, this is a strong instruction obtaining maximum power, as long as now rotating speed is the highest, Any automatic gear-box all can drop a gear even two gear automatically to obtain the power that electromotor is more powerful.
And the range of application of prior art is little, being now detected in the automatic catch road road vehicle of luxurious configuration, control object is limited to The peak torque output obtained in automatic gear-box and " Kick down " limited by engine test bench characteristic, and also 10% The shortcoming that engine power design engineering surplus is not mined out.
So that provide a kind of applied widely, the most safe and reliable, application cost is cheap on suitable opportunity Excavate power output potentiality and the most do not affect the transient dynamics prioritization scheme of engine life to meet user's request.
Summary of the invention
The present invention provides a kind of transient dynamics optimal control method, and the method is applied widely, it is possible to safe and reliable On suitable opportunity, excavate engine power output potentiality to meet user's request.When user has bigger instantaneous dynamic The when of power output demand, improve complete machine transient dynamics response by decontroling external characteristics torque limit.
The technical solution used in the present invention is:
A kind of transient dynamics optimal control method, comprises the following steps that
(1) receive transient dynamics and optimize open command, function init state, the accumulative activationary time T1=0 of order, exit Treat time T2=0；
(2) controller receives accelerator pedal signal, gearbox-gear signal, engine state monitor sensor signal, and Judge whether that meeting transient dynamics optimizes function unlocking condition, if meeting, entering step (3), otherwise continuing according to above-mentioned signal Monitoring judges；
(3) entered function state of activation, at relieving engine power output external characteristic limits value to preset security boundary, puts Over characteristic torque limit, improve motor instant output demand response, and accumulative activationary time T1；
(4) when function is active and transient dynamics optimize function unlocking condition from meet become being unsatisfactory for, then Exit function activates, and engine power output recovers limited, and accumulating function exits waiting time T2；
(5) if function is in exits state of activation, transient dynamics optimizes function unlocking condition and again meets, the most instantaneous function It is reactivated.
Preferably, transient dynamics described in step (2) optimizes function unlocking condition, particularly as follows:
(2.1) the transient dynamics output demand of user is judged according to accelerator open degree, when accelerator open degree is opened more than presetting throttle Angle value T3, then demand；
(2.2) judge that electromotor now improves power and exports whether safety by engine speed, engine temperature, when When motivation rotating speed is less than preset temperature value T5 less than preset rotation speed value T4, engine temperature, then safety；
(2.3) preset by monitoring electromotor currently practical torque value judge car load the most really need by activation function Promote power, if currently practical torque value is less than presetting external characteristics torque limit T8, the most now car load actually and be not required to Function to be activated decontrols torque limit；
(2.4) function is added up activationary time T1, exits waiting time T2 judgement, when accumulative activationary time T1 is less than presetting Activationary time value T6, exits waiting time T2 less than presetting and exits latency value T7, then meet requirement.
Preferably, described step 2.2 also includes judging that electromotor now improves by engine power, motor torque Power exports whether safety, when engine power less than predetermined power value, motor torque less than preset torque value time, then pacify Entirely.
Preferably, described step 2.4 also includes judging, the currently active time, super external characteristics time when the currently active Time, super external characteristics time less than corresponding preset time value, then meet requirement.
Compared with prior art, the present invention provides a kind of applied widely, and the most safe and reliable, application cost is cheap Excavate power output potentiality on suitable opportunity and the most do not affect the transient dynamics optimization of engine life to meet user's request Scheme.
Accompanying drawing explanation
Fig. 1 is the flow chart of embodiments of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is illustrated:
As shown in Figure 1, it is provided that a kind of transient dynamics optimal control method, comprise the following steps that
(1) receive transient dynamics and optimize open command, function init state, the accumulative activationary time T1=0 of order, exit Treating time T2=0, this initialization initial value is preset as other initial value also dependent on needs；
(2) controller receives accelerator pedal signal, gearbox-gear signal, engine state monitor sensor signal, and Judge whether that meeting transient dynamics optimizes function unlocking condition, if meeting, entering step (3), otherwise continuing according to above-mentioned signal Monitoring judges, and unlocking condition circular test in Preset Time judges；
(3) entered function state of activation, at relieving engine power output external characteristic limits value to preset security boundary, puts Over characteristic torque limit thus improve the response of motor instant output demand, and accumulative activationary time T1；
(4) when function is active and transient dynamics optimize function unlocking condition from meet become being unsatisfactory for, Then exit function activates, and engine power output recovers limited to ensure safety, and the function of this driving cycle accumulative exits Waiting time T2；
(5) when function is in and exits state of activation, transient dynamics optimizes after function unlocking condition meets again instantaneous Function also is able to be reactivated and has met user and use demand.
Preferably, transient dynamics described in step (2) optimizes function unlocking condition, particularly as follows:
(2.1) the transient dynamics output demand of user is judged according to accelerator open degree, when accelerator open degree is more than preset value T3= 80%, then think demand；
(2.2) judge that electromotor now improves power and exports whether safety by engine speed, engine temperature, when When motivation rotating speed is less than preset temperature value T5=80 DEG C less than preset rotation speed value T4=1800r/min, engine temperature, then think Safety；
(2.3) judge car load the most really to need by activation function by the monitoring currently practical torque value of electromotor to carry Rise power, if currently practical torque value is less than presetting external characteristics torque limit T8=70Nm, the most now car load the most not Need to activate function and decontrol torque limit；
(2.4) function is added up activationary time T1, exit waiting time T2 and judge, when accumulative activationary time T1 is less than presetting Activationary time value T6=30s, exits waiting time T2 less than presetting and exits latency value T7=25s, then meet requirement.
In above-mentioned steps (2), the numerical value of each parameter is preset as other value also dependent on needs and does not affect the present invention and protect model Enclosing, present embodiment is merely illustrative and does not constitutes limiting the scope of the invention.
Preferably, described step 2.2 also includes judging that electromotor now improves by engine power, motor torque Power exports whether safety, when engine power less than predetermined power value, motor torque less than predetermined power value time, then pacify Entirely.
Preferably, described step 2.4 also includes judging, the currently active time, super external characteristics time when the currently active Time, super external characteristics time preset activationary time, super external characteristics time value less than corresponding, then meet requirement.
The present invention is by judging when user has bigger transient dynamics output demand when, by decontroling external characteristics Torque limit improves complete machine transient dynamics response, it is provided that a kind of applied widely, it is possible to safe and reliable properly Opportunity, excavate engine power output potentiality to meet the transient dynamics prioritization scheme of user's request.
Note that and above are only presently preferred embodiments of the present invention, be not used to limit the scope of the enforcement of the present invention, the most greatly All simple equivalence changes made according to scope of the present invention patent and invention description content and modification, the most still belong to the present invention special In the range of profit contains.

Claims (4)

1. a transient dynamics optimal control method, it is characterised in that comprise the following steps that
(1) receiving transient dynamics and optimize open command, function init state, the accumulative activationary time T1=0 of order, when exiting wait 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 that meeting transient dynamics optimizes function unlocking condition, if meeting, entering step (3), otherwise continuing monitoring Judge；
(3) entered function state of activation, at relieving engine power output external characteristic limits value to preset security boundary, outside relieving Characteristic torque limit, improves motor instant output demand response, and accumulative activationary time T1；
(4) when function is active and transient dynamics optimize function unlocking condition from meet become being unsatisfactory for, then exit Function activation, engine power output recovers limited, and accumulating function exits waiting time T2；
(5) if function is in exits state of activation, transient dynamics optimizes function unlocking condition and again meets, and the most instantaneous function is weighed New activation.
2. transient dynamics optimal control method as claimed in claim 1, it is characterised in that transient dynamics described in step (2) Optimize function unlocking condition and include following requirement, particularly as follows:
(2.1) the transient dynamics output demand of user is judged according to accelerator open degree, when accelerator open degree is more than presetting accelerator open degree value T3, then demand；
(2.2) judge that electromotor now improves power and exports whether safety by engine speed, engine temperature, work as electromotor When rotating speed is less than preset temperature value T5 less than preset rotation speed value T4, engine temperature, then safety；
(2.3) judge that car load needs to promote dynamic by activation function the most really by the monitoring currently practical torque value of electromotor Power, if currently practical torque value less than preset external characteristics torque limit T8, the most now car load and actually be not required to activation merit Torque limit can be decontroled；
(2.4) function is added up activationary time T1, exits waiting time T2 judgement, when accumulative activationary time T1 activates less than presetting Time value T6, exits waiting time T2 less than presetting and exits latency value T7, then meet requirement.
3. transient dynamics optimal control method as claimed in claim 2, it is characterised in that: described step 2.2 also includes lead to Cross engine power, motor torque judges that electromotor now improves power and exports whether safety, when engine power is less than pre- If performance number, motor torque are less than preset torque value, then safety.
4. transient dynamics optimal control method as claimed in claim 2, it is characterised in that: it is right also to include in described step 2.4 The currently active time, super external characteristics time judge, when the currently active time, super external characteristics time are less than corresponding preset time value, Then meet requirement.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111824119A (en) * 2020-06-18 2020-10-27 杭州赫日新能源科技有限公司 Instantaneous optimization control method for range extender
CN113401106A (en) * 2021-06-30 2021-09-17 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
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

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Publication number Priority date Publication date Assignee Title
JPH1148831A (en) * 1997-08-01 1999-02-23 Nissan Motor Co Ltd Output control device for vehicle
JP2000118268A (en) * 1998-10-12 2000-04-25 Nissan Motor Co Ltd Driving force controller for vehicle
CN101052541A (en) * 2004-10-30 2007-10-10 大众汽车有限公司 Method for controlling mixed power automobile inertial running and mixed power automobile
CN101392691A (en) * 2008-11-04 2009-03-25 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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1148831A (en) * 1997-08-01 1999-02-23 Nissan Motor Co Ltd Output control device for vehicle
JP2000118268A (en) * 1998-10-12 2000-04-25 Nissan Motor Co Ltd Driving force controller for vehicle
CN101052541A (en) * 2004-10-30 2007-10-10 大众汽车有限公司 Method for controlling mixed power automobile inertial running and mixed power automobile
CN101392691A (en) * 2008-11-04 2009-03-25 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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111824119A (en) * 2020-06-18 2020-10-27 杭州赫日新能源科技有限公司 Instantaneous optimization control method for range extender
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
CN113401106A (en) * 2021-06-30 2021-09-17 重庆长安汽车股份有限公司 Control method of power output
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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