CN104386058B - A kind of control method that starting ride comfort is improved based on AMT gearboxes - Google Patents
A kind of control method that starting ride comfort is improved based on AMT gearboxes Download PDFInfo
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- CN104386058B CN104386058B CN201410549595.6A CN201410549595A CN104386058B CN 104386058 B CN104386058 B CN 104386058B CN 201410549595 A CN201410549595 A CN 201410549595A CN 104386058 B CN104386058 B CN 104386058B
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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
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
-
- 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
-
- 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
- B60W2510/0652—Speed change rate
-
- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/02—Clutches
- B60W2710/021—Clutch engagement state
- B60W2710/023—Clutch engagement rate
-
- 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
- B60W2710/10—Change speed gearings
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The present invention is applied to technical field of vehicle there is provided a kind of control method that starting ride comfort is improved based on AMT automatic gear-box, including：Run for the first time according to clutch before starting, confirm that sliding wear is interval；In sliding wear interval solutions condensate oil door pedal value, judge whether driver has acceleration request；When having detected acceleration request, clutch target binding site is determined according to gas pedal value changes, size and engine speed conditions, and set up the dimensional table that shock extent changes with clutch；Corresponding modification is made to clutch target location according to shock extent change, it is ensured that clutch combination stroke carries out subregion control targe association rate；And target association rate is modified.Output clutch bonding station, engaging speed, engine target throttle position and throttle given speed are confirmed by calculating vehicle start shock extent, throttle acceleration change, speed discrepancy change and collection clutch sliding wear interval off set, so as to reach the ride comfort for providing AMT vehicle starts.
Description
Technical field
The invention belongs to technical field of vehicle, more particularly to a kind of starting ride comfort is improved based on AMT automatic gear-box
Control method.
Background technology
Existing AMT automatic gear-box is reequiped on original MT manual transmissions, and have mounted thereto one
Cover automatically controlled execution system.TCU can be according to parameters such as speed, throttle, driver's operational orders, it is determined that optimal gear, control tradition
Vehicle originally should by be accomplished manually clutch separation, with reference to and shift control bar pluck shelves, hang the oil of shelves and engine
The operating process such as the synchronous adjustment of door aperture, finally realize the manipulation automation of gearshift procedure.
China's urban bus quality and automatization level are very low so that the daily workload of driver is very big, easily production
Raw fatigue, directly results in the security reduction of driving, be this AMT automobile if conditions permit, should pay the utmost attention to.Also
Have, usage amount is very low at this stage for urban bus, only 27.3 ten thousand or so, this with it is growing in China's actual conditions it is tight
It is not inconsistent again, needs to increase the input of urban bus for this, estimation is in requisition for reaching more than 60 ten thousand.As can be seen that AMT technologies
The application prospect in bus field is very wide.
However, existing AMT vehicles are low because of gear in starting journey, cause the speed discrepancy between driving shaft and driven shaft
It is larger, and the restriction of the complexity and the condition such as polytropy of driver's operation due to running environment of starting to walk, further increase
The difficulty of vehicle start control.So can degree of impacting generation, influence automobile ride comfort.Therefore AMT vehicles need one
Plant the control method for improving starting ride comfort.
The content of the invention
It is an object of the invention to provide a kind of control method that starting ride comfort is improved based on AMT gearboxes, it is intended to solves
Certainly existing AMT transmission systems, in starting-up process, vehicle can not hold clutch engagement and coordinate with engine oil gate control
Accuracy so that vehicle keep out starting in can not smooth excessiveness, cause the problem of stationarity is low.
The present invention is achieved in that a kind of control method that starting ride comfort is improved based on AMT gearboxes, including：Step
Rapid 1, before starting, run for the first time according to clutch, confirm that sliding wear is interval；
Step 2, gas pedal value is parsed from sliding wear interval, judges whether driver has acceleration request；
Step 3, it is true according to gas pedal value changes, size and engine speed conditions when having detected acceleration request
Determine clutch target binding site, and set up the dimensional table that shock extent changes with clutch；
Step 4, corresponding modification is made to clutch target location according to shock extent change, it is ensured that clutch combination stroke is carried out
Subregion control targe association rate, clutch target association rate is determined according to target throttle position；
Step 5, according to clutch driving shaft is poor with output speed, gas pedal value and engine speed are combined to target
Speed is modified.
Further, the step 1 confirms that sliding wear is interval, is specially：
The clutch for confirming sliding wear interval for vehicle is not when being demarcated, driven shaft and master in first time self study
The sliding wear that moving axis synchronization is produced；Start every time and be worth on the basis of the sliding wear interval of first time self study, do not entered in vehicle
When entering to sliding wear interval, changed according to the vehicle gear box output speed and shock extent collected, sliding wear interval is corrected in real time
Demarcation, and the result of demarcation is stored in vehicle.
Further, the shock extent is the rate of change of the vehicle body longitudinal acceleration during vehicle starting, and automobile is in traveling
The shock extent moment in stage changes, and changes particularly evident in starting and deboost phase；Specific formula for calculation is as follows：
Wherein, △ n are change amplitude of the engine speed within the △ t times；A and △ a are acceleration and acceleration in △ t
Variable quantity in time；J is vehicle shock extent；r、i0、igRespectively tire radius, base ratio and transmission ratio.
Further, the step 2：Gas pedal value is parsed when in sliding wear interval, judges whether driver has acceleration
Request, be specially：
Acceleration request whether there is according to the size of gas pedal value and gas pedal value changes parsing driver, work as throttle
Pedal value is smaller, then can be concluded that driver requested gentle start, requires higher to ride comfort, and acceleration requires relatively low, from
Clutch engaging rate can accordingly slow down；It when gas pedal value is larger, then can be concluded that driver requested acceleration is good, need to accelerate
Clutch engaging rate；When gas pedal value changes are big, then it can be concluded that driver will accelerate；When gas pedal value changes are small,
It then can be concluded that driver will slow down.
Further, the clutch target binding site is determined in the S3 steps, is specially：
In Vehicle Starting Process, engine speed is obtained；
If detection engine speed is to be in be more than 600r/min less than 1500r/min, turn if so, then calculating engine
Fast rate of descent, if engine speed rate of descent is smaller or does not decline, clutch target binding site is land；
If detection engine speed is to be in be less than 550r/min, then it represents that now engine speed is pressed, pole
Easily flame-out, clutch target location is the high binding site in sliding wear area；
If detection engine speed is to be in be more than 550r/min and be less than 600r/min, then clutch in the S4 steps
Target location is that current location offsets 1% to separation point position, if continuing in this case, persistently to be offset, is otherwise exited
This pattern.
Further, the step 5, according to clutch driving shaft and output speed is poor, gas pedal value and engine turn
Speed is modified to association rate, is specially：
Clutch is obtained in different zones and the speed discrepancy of combination driving shaft and driven between centers, engine target throttle is determined
Position；Throttle speed is determined according to actual gas pedal value gas pedal value difference value corresponding with current rotating speed；According to different shelves
The speed of position sets up map figures and does last amendment to engine target throttle.
Further, the position of the target throttle is determined, is specially：
When clutch is in sliding wear interval, according to the clutch driving shaft and the speed discrepancy of driven between centers, if rotating speed
Difference is less than 120r/min, then it represents that now engine governed speed is completed, and engine enters throttle response modes；And according to starting at that time
Machine target throttle is corresponding with engine speed value, sets up a map table.
Further, currently practical gas pedal value is obtained, according to the gas pedal value and the corresponding oil of current rotating speed
The difference of door pedal value, determines throttle speed；
Further, clutch target association rate is determined according to target throttle position；Specially：
Change and the size of driver's gas pedal value are obtained, if detection gas pedal value amplitude is more than 30%, throttle is stepped on
Plate value changes rate is larger, and engine speed is less than 900r/min, and clutch current location is located at sliding wear area close to Disengagement zone direction,
Then represent that driver requested progress is anxious and accelerate operation, association rate is modified in combination with shock extent, now association rate
Should be very fast；
It is Liang Ge areas by sliding wear interval division, one is high area of sliding wear area close to clutch separation point, one close to clutch
Device land, is low area of sliding wear area.If current driver's gas pedal value is smaller, and current rotating speed is less than 900r/min, represents
Driver's operation is soft, it is desirable to gentle start, if clutch position is located at area high more than sliding wear area, association rate is most fast, if
When clutch is located at sliding wear area, association rate slows down, and clutch is modified according to clutch driving shaft and driven shaft difference
Association rate, when clutch position is less than clutch sliding wear low area, clutch association rate is accelerated again, and engine power is passed
It is delivered on vehicle.
Further, low area of sliding wear area is in clutch, engine target throttle gives speed and stepped on according to driver's throttle
Plate value size and gas pedal value changes rate are demarcated：
Gas pedal value is smaller, and varies less, and throttle gives speed and diminished, and vehicle keeps stable and advanced；Gas pedal
Value is larger, and throttle, which gives speed, slightly to be increased, and because different gear ratios are different, therefore MAP tables are set up according to gear, keep
Increase power performance while step stability.
In the present invention, changed by calculating vehicle start shock extent, driver's throttle acceleration change, speed discrepancy in real time
And gather sliding wear interval off set to confirm output clutch bonding station, clutch engagement, engine target throttle position
Put with engine throttle given speed so that reach the steady of AMT vehicle starts and acceleration so that can in Vehicle Starting Process
Smoothly improve starting ride comfort.
Brief description of the drawings
Fig. 1 is a kind of based on AMT automatic gear-box system architecture schematic diagrams；
Fig. 2 is a kind of technical scheme schematic diagram that starting ride comfort is improved based on AMT automatic gear-box；
Fig. 3 is a kind of implementing procedure figure that starting ride comfort is improved based on AMT automatic gear-box；
Fig. 4 is a kind of based on AMT automatic gear-box throttle pedal value analysis diagrams.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
With reference to Fig. 1, Fig. 1 is a kind of based on AMT automatic gear-box system architecture schematic diagrams.
As shown in figure 1, bus AMT automatic gear-box dynamical system it is main by engine (containing ECU), clutch (from
Clutch executing agency), four parts of automatic gear-box (gear box actuator) and gear box control unit (TCU) constitute.
Wherein, present invention effect within the system, in Vehicle Starting Process, is adopted by the parameter sensing of environment to external world
Collection, the moment grasps the transport condition of vehicle, realizes the best match of control engine and clutch, to improve relaxing for vehicle start
Adaptive, reaches the requirement for improving starting ride comfort.
With reference to Fig. 2, Fig. 2 is a kind of technical scheme schematic diagram that starting ride comfort is improved based on AMT automatic gear-box.
Slided by calculating vehicle start shock extent, driver's throttle acceleration change, speed discrepancy change and collection in real time
Interval off set is ground to confirm output clutch bonding station, clutch engagement, engine target throttle position and engine
Throttle given speed, so as to reach the steady of AMT vehicle starts and acceleration.
With reference to Fig. 3, Fig. 3 is a kind of implementing procedure figure that starting ride comfort is improved based on AMT automatic gear-box.
Including：Step 1, before starting, run for the first time according to clutch, confirm that sliding wear is interval；
Step 2, gas pedal value is parsed when in sliding wear interval, judges whether driver has acceleration request；
Step 3, it is true according to gas pedal value changes, size and engine speed conditions when having detected acceleration request
Determine clutch target binding site, and set up the dimensional table that shock extent changes with clutch；
Step 4, corresponding modification is made to clutch target location according to shock extent change, it is ensured that clutch combination stroke is carried out
Subregion control targe association rate, clutch target association rate is determined according to target throttle position；
Step 5, according to clutch driving shaft is poor with output speed, gas pedal value and engine speed are combined to target
Speed is modified.
In this example, the stationarity of vehicle start depends on having ride comfort and acceleration concurrently, and the two are mutual
Contradiction.During vehicle start, clutch Engagement Control is in order to improve ride comfort, then will reduce the engaging speed of clutch,
And the Throttle Opening Control of engine is soft, it will necessarily so extend start-up time.If it is considered that the acceleration of starting, and consider
Reduce the sliding wear time of clutch as far as possible simultaneously, prevent from reducing life of clutch, then the engaging speed of clutch will be accelerated,
And engine oil gate control is quick, but so it is easy for causing the impact of clutch's jointing process, ride comfort is poor, or even easily draws
Play the flame-out of engine.
Traditional AMT clutches starting control method limitation is larger, and the control parameter of selection needs substantial amounts of experiment number
According to supporting, parameter if inappropriate can then cause inapplicable clutch engagement.The invention solves the problems that technology ask
Topic adapts to Current vehicle unit status in real time aiming at bus AMT automatic gear-box systems, and selection suitable parameters are defeated
Go out, definite response driver's drive demand reaches the quick and comfortable of vehicle start, meanwhile, can be effective by the control method
Mitigation clutch abrasion, extend its service life, improve system reliability.
Further, the step 1 confirms that sliding wear is interval, is specially：
The clutch for confirming sliding wear interval for vehicle is not when being demarcated, driven shaft and master in first time self study
The sliding wear that moving axis synchronization is produced；Start every time and be worth on the basis of the sliding wear interval of first time self study, do not entered in vehicle
When entering to sliding wear interval, changed according to the vehicle gear box output speed and shock extent collected, sliding wear interval is corrected in real time
Demarcation, and the result of demarcation is stored in vehicle.
Further, the shock extent is the rate of change of the vehicle body longitudinal acceleration during vehicle starting, and automobile is in traveling
The shock extent moment in stage changes, and changes particularly evident in starting and deboost phase；Specific formula for calculation is as follows：
Wherein, △ n are change amplitude of the engine speed within the △ t times；A and △ a are acceleration and acceleration in △ t
Variable quantity in time；J is vehicle shock extent；r、i0、igRespectively tire radius, base ratio and transmission ratio.
Reference picture 4, Fig. 4 for it is a kind of be based in AMT automatic gear-box throttle pedal value analysis diagrams, the S2 steps in
Gas pedal value is parsed when sliding wear is interval, judges whether driver has acceleration request, is specially：
Acceleration request whether there is according to the size of gas pedal value and gas pedal value changes parsing driver, work as throttle
Pedal value is smaller, then can be concluded that driver requested gentle start, requires higher to ride comfort, and acceleration requires relatively low, from
Clutch engaging rate can accordingly slow down；It when gas pedal value is larger, then can be concluded that driver requested acceleration is good, need to accelerate
Clutch engaging rate；When gas pedal value changes are big, then it can be concluded that driver will accelerate；When gas pedal value changes are small,
It then can be concluded that driver will slow down.
It is preferred that, the clutch target binding site is determined in the S3 steps, is specially：
In Vehicle Starting Process, engine speed is obtained；
If detection engine speed is to be in be more than 600r/min less than 1500r/min, turn if so, then calculating engine
Fast rate of descent, if engine speed rate of descent is smaller or does not decline, clutch target binding site is land；
If detection engine speed is to be in be less than 550r/min, then it represents that now engine speed is pressed, pole
Easily flame-out, clutch target location is the high binding site in sliding wear area；
If detection engine speed is to be in be more than 550r/min and be less than 600r/min, then clutch in the S4 steps
Target location is that current location offsets 1% to separation point position, if continuing in this case, persistently to be offset, is otherwise exited
This pattern.
It is preferred that, the step 5, according to clutch driving shaft and output speed is poor, gas pedal value and engine turn
Speed is modified to association rate, is specially：
Clutch is obtained in different zones and the speed discrepancy of combination driving shaft and driven between centers, engine target throttle is determined
Position；Throttle speed is determined according to actual gas pedal value gas pedal value difference value corresponding with current rotating speed；According to different shelves
The speed of position sets up map figures and does last amendment to engine target throttle.
It is preferred that, the position of the target throttle is determined, is specially：
When in sliding wear interval, according to the clutch driving shaft and the speed discrepancy of driven between centers, if speed discrepancy is less than
120r/min, then it represents that now engine governed speed is completed, engine enters throttle response modes；And according to engine target at that time
Throttle is corresponding with engine speed value, sets up a map table.
It is preferred that, currently practical gas pedal value is obtained, according to the gas pedal value and the corresponding oil of current rotating speed
The difference of door pedal value, determines throttle speed；
It is preferred that, clutch target association rate is determined according to target throttle position；Specially：
Change and the size of driver's gas pedal value are obtained, if detection gas pedal value amplitude is more than 30%, throttle is stepped on
Plate value changes rate is larger, and engine speed is less than 900r/min, and clutch current location is located at sliding wear area close to Disengagement zone direction,
Then represent that driver requested progress is anxious and accelerate operation, association rate is modified in combination with shock extent, now association rate
Should be very fast；
It is Liang Ge areas by sliding wear interval division, one is high area of sliding wear area close to clutch separation point, one close to clutch
Device land, is low area of sliding wear area.If current driver's gas pedal value is smaller, and current rotating speed is less than 900r/min, represents
Driver's operation is soft, it is desirable to gentle start, if clutch position is located at area high more than sliding wear area, association rate is most fast, if
When clutch is located at sliding wear area, association rate slows down, and clutch is modified according to clutch driving shaft and driven shaft difference
Association rate, when clutch position is less than clutch sliding wear low area, clutch association rate is accelerated again, and engine power is passed
It is delivered on vehicle.
It is preferred that, low area of sliding wear area is in clutch, engine target throttle gives speed and stepped on according to driver's throttle
Plate value size and gas pedal value changes rate are demarcated：
Gas pedal value is smaller, and varies less, and throttle gives speed and diminished, and vehicle keeps stable and advanced；Gas pedal
Value is larger, and throttle, which gives speed, slightly to be increased, and because different gear ratios are different, therefore MAP tables are set up according to gear, keep
Increase power performance while step stability.
In the present invention, changed by calculating vehicle start shock extent, driver's throttle acceleration change, speed discrepancy in real time
And gather sliding wear interval off set to confirm output clutch bonding station, clutch engagement, engine target throttle position
Put with engine throttle given speed so that reach the steady of AMT vehicle starts and acceleration so that can in Vehicle Starting Process
Smoothly improve starting ride comfort.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (5)
1. a kind of control method that starting ride comfort is improved based on AMT gearboxes, it is characterised in that including：
Step 1, before starting, run for the first time according to clutch, confirm that sliding wear is interval；
Step 2, gas pedal value is parsed when in sliding wear interval, judges whether driver has acceleration request；
Step 3, when having detected acceleration request, according to gas pedal value changes, size and engine speed conditions determine from
Clutch target binding site, and set up the dimensional table that shock extent changes with clutch；
Step 4, corresponding modification is made to clutch target location according to shock extent change, it is ensured that clutch combination stroke carries out subregion
Domain control targe association rate, clutch target association rate is determined according to target throttle position；
Step 5, according to clutch driving shaft and output speed is poor, gas pedal value and engine speed are to target association rate
It is modified.
2. a kind of control method that starting ride comfort is improved based on AMT gearboxes according to claim 1, its feature is existed
In the step 1 confirms that sliding wear is interval, is specially：
The clutch for confirming sliding wear interval for vehicle is not when being demarcated, driven shaft and driving shaft in first time self study
The sliding wear that synchronization is produced；Start every time and be worth on the basis of the sliding wear interval of first time self study, is introduced into vehicle
When sliding wear is interval, changed according to the vehicle gear box output speed and shock extent collected, in real time the interval demarcation of amendment sliding wear,
And the result of demarcation is stored in vehicle.
3. a kind of control method that starting ride comfort is improved based on AMT gearboxes according to claim 2, its feature is existed
In,
The shock extent is the rate of change of the vehicle body longitudinal acceleration during vehicle starting, and automobile is in travel phase shock extent
Change is carved, changes particularly evident in starting and deboost phase；Specific formula for calculation is as follows：
<mrow>
<mi>a</mi>
<mo>=</mo>
<mn>0.377</mn>
<mfrac>
<mrow>
<mi>r</mi>
<mi>&Delta;</mi>
<mi>n</mi>
</mrow>
<mrow>
<msub>
<mi>i</mi>
<mn>0</mn>
</msub>
<msub>
<mi>i</mi>
<mi>g</mi>
</msub>
<mi>&Delta;</mi>
<mi>t</mi>
</mrow>
</mfrac>
</mrow>
<mrow>
<mi>j</mi>
<mo>=</mo>
<mfrac>
<mrow>
<mi>&Delta;</mi>
<mi>a</mi>
</mrow>
<mrow>
<mi>&Delta;</mi>
<mi>t</mi>
</mrow>
</mfrac>
</mrow>
Wherein, △ n are change amplitude of the engine speed within the △ t times；A and △ a are acceleration and acceleration in the △ t times
Interior variable quantity；J is vehicle shock extent；r、i0、igRespectively tire radius, base ratio and transmission ratio.
4. a kind of control method that starting ride comfort is improved based on AMT gearboxes according to claim 1, its feature is existed
In, the step 5, according to clutch driving shaft and output speed be poor, gas pedal value and engine speed are to association rate
It is modified, is specially：
Clutch is obtained in different zones and the speed discrepancy of combination driving shaft and driven between centers, the position of engine target throttle is determined
Put；Throttle speed is determined according to actual gas pedal value gas pedal value difference value corresponding with current rotating speed；According to different gears
Speed sets up map figures and does last amendment to engine target throttle.
5. a kind of control method that starting ride comfort is improved based on AMT gearboxes according to claim 4, its feature is existed
In, determine the position of the target throttle, be specially：
When clutch is located at sliding wear interval, according to the clutch driving shaft and the speed discrepancy of driven between centers, if speed discrepancy is small
In 120r/min, then it represents that now engine governed speed is completed, now, engine enters throttle response modes；And according to sending out at that time
Motivation target throttle is corresponding with engine speed value, sets up a map table.
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| CN201410549595.6A CN104386058B (en) | 2014-10-16 | 2014-10-16 | A kind of control method that starting ride comfort is improved based on AMT gearboxes |
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| CN104386058B true CN104386058B (en) | 2017-08-18 |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989815B (en) * | 2015-05-14 | 2018-05-08 | 武汉合康动力技术有限公司 | A kind of adaptive control method that started to walk based on AMT automatic gear-box |
| CN106564499B (en) * | 2015-10-13 | 2019-02-15 | 上海汽车集团股份有限公司 | The method and device of power source speed control |
| CN105644561B (en) * | 2015-12-25 | 2018-04-03 | 潍柴动力股份有限公司 | A kind of AMT vehicle starts control method and system |
| DE102016206426B4 (en) * | 2016-04-15 | 2020-12-31 | Robert Bosch Gmbh | Method for controlling a clutch |
| JP6542833B2 (en) * | 2017-04-28 | 2019-07-10 | ファナック株式会社 | Control device and machine learning device |
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