CN105799703A - Method and system for controlling driving chain of automobile - Google Patents
Method and system for controlling driving chain of automobile Download PDFInfo
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- CN105799703A CN105799703A CN201610139238.1A CN201610139238A CN105799703A CN 105799703 A CN105799703 A CN 105799703A CN 201610139238 A CN201610139238 A CN 201610139238A CN 105799703 A CN105799703 A CN 105799703A
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- combustion engine
- internal combustion
- rotating speed
- variator
- clutch
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Classifications
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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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18072—Coasting
-
- 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
- B60W10/11—Stepped 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
- 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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18072—Coasting
- B60W2030/1809—Without torque flow between driveshaft and engine, e.g. with clutch disengaged or transmission in neutral
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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
- B60W2510/0638—Engine speed
- B60W2510/0647—Coasting condition
-
- 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
- B60W2510/10—Change speed gearings
- B60W2510/1015—Input shaft speed, e.g. turbine speed
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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
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
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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
- B60W2540/10—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
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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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0644—Engine speed
- B60W2710/0655—Coasting condition
-
- 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
- B60W2710/1005—Transmission ratio engaged
Abstract
The invention relates to a method and system for controlling a driving chain of an automobile, wherein the driving chain comprises an internal combustion engine (10), an automatic transmission (30) and an automatic clutch (20) connected to the transmission (30) and the internal combustion engine (10). The method comprise that: the intenral combustion engine (10) does not operate and is separated from the clutch (20) when the automobile is moving in a navigation mode, a force-to-weight ratio of the transmission (30) is provided according to the input shaft (31) of the transmission (30) or the rotation speed of the output shaft (32) and the initial rotation speed of the internal combustion engine (10), the internal combustion engine (10) is pulled to start the rotation speed through automatically fully meshing or partly meshing the clutch when the internal combustion engine is needed to operate, fuel is automatically supplied to the internal combustion engine (10) and the internal combustion engine (10) is automatically controlled to operate.
Description
Technical field
The present invention relates to the method and system of the driving chain for controlling motor vehicles, include the motor vehicles of described system and for realizing the computer program of described method.
Background technology
The so-called sail mode of the one (Segelmodus) (or being sliding mode) driving chain of known motor vehicles putting into practice from inside, described driving chain includes internal combustion engine, automatic transmission and automatic clutch, the latter is used for connecting variator and internal combustion engine, wherein in this sail mode, internal combustion engine does not run and clutch separation, and motor vehicles moves on.
When driver needs internal combustion engine operation, in order to such as improving speed, the internal combustion engine not run can pass through clutch and close by variator " traction " (or crying towing), say, that be put into operation.
But the enforcement meeting negative effect in the inappropriate situation of gear ratio of variator is by the operation pulling initiation.
Summary of the invention
The technical problem to be solved is in that to improve the operation of motor vehicles.
According to an aspect of the present invention, motor vehicles, particularly car, including a driving chain, this driving chain have internal combustion engine, automatic transmission and for connect described variator and described internal combustion engine automatic clutch and as described herein, for controlling the system of described driving chain.
Clutch according to a kind of embodiment includes particularly automatically controlled executor, and the latter is by described system quilt or can be automatically controlled.
Variator according to a kind of embodiment includes two or more gear that at least four is different especially, and they are especially through the gear regulation being engaged with each other.Therefore the gear ratio of variator can be a gear of this variator.Variator according to another embodiment can be stepless variator.Variator according to a kind of embodiment includes an especially automatically controlled executor, and it is automatically controlled by described system.
Variator according to a kind of embodiment includes at least one power shaft, and it is connected with clutch especially；With include at least one output shaft, it is connected with at least one driving wheel of motor vehicles especially.
According to an aspect of the present invention, for controlling to drive the method for chain to include below step:
A) during sail mode, wherein when motor-driven vehicle going, internal combustion engine does not run and clutch separation, is automatically provided a draw ratio of variator according to the rotating speed that starts of the rotating speed of the power shaft of variator or output shaft and internal combustion engine；
B) when needs internal combustion engine operation, automatically completely or partially being engaged by clutch, traction internal combustion engine is to starting rotating speed；
C) especially before traction, internal combustion engine is automatically fed fuel during traction and/or after traction；With
D) internal combustion engine of auto-controll operation.
According to a further aspect in the invention, it is provided that one for controlling to drive the system of chain, it performs a kind of method as described herein and/or includes following device:
There is provided the device of the draw ratio of variator during sail mode for the rotating speed of the power shaft according to variator or output shaft and the beginning rotating speed of internal combustion engine, during sail mode, when motor-driven vehicle going, internal combustion engine does not run and clutch separation；
Automatically completely or partially engaged by clutch when needing internal combustion engine operation, drawn the internal combustion engine device to beginning rotating speed；
For automatically supplying the device of fuel to internal combustion engine；With
For automatically controlling the device of the internal combustion engine run.
According to a kind of embodiment, it is drawn to beginning rotating speed by internal combustion engine and makes internal combustion engine put into operation to its supply fuel.It is possible to start in an advantageous manner internal combustion engine.According to a kind of embodiment by providing draw ratio can realize distraction procedure in an advantageous manner.
Beginning rotating speed according to a kind of embodiment internal combustion engine is less than the idler revolutions of internal combustion engine, and starting rotating speed in this respect can be such as less than 600 rpms.According to a kind of embodiment, this makes it possible to startup optimization ahead of time.Starting rotating speed according to a kind of embodiment pre-determine and can adjust especially, it can relate to a minimum speed especially in this respect, and under this minimum speed, internal combustion engine is particular enable to operate independently from.
According to a kind of embodiment, after internal combustion engine is drawn to beginning rotating speed, by correspondingly controlling the internal combustion engine run, the rotating speed of the internal combustion engine run can continue to bring up to a rotating speed needed, especially after clutch is separated again and/or by controlling the fuel supply etc. of internal combustion engine.According to a kind of embodiment, this can shorten the time arriving required rotating speed in an advantageous manner.
Corresponding to this, described system can include such device, this device internal combustion engine for being run by corresponding control after internal combustion engine is drawn to beginning rotating speed, the rotating speed of internal combustion engine run is continued to bring up to a rotating speed needed, supplies after clutch is separated again and/or by control fuel especially.
When the draw ratio of the variator provided is different from the gear ratio of the needs of variator, again separated according to a kind of embodiment clutch after internal combustion engine is drawn to beginning rotating speed；The gear ratio needed is provided by changing the gear ratio of variator；By controlling the internal combustion engine run after clutch is separated, especially through controlling fuel supply, the rotating speed of the internal combustion engine run is raised to a rotating speed needed especially, it is corresponding to the gear ratio of the needs of variator, and clutch engages again with the gear ratio of the needs of variator, when the rotating speed of the internal combustion engine run reaches the rotating speed of a predetermined regulation of rotating speed as required, this point is provided, and the rotating speed that can involve a need to especially here or the rotating speed involved a need to reduce the difference of a predetermined threshold value.With favourable draw ratio traction internal combustion engine, the gear ratio of the needs of variator can be provided afterwards by this way.
Corresponding to this, described system can include following device: for internal combustion engine traction to starting to separate after rotating speed the device of clutch, by changing the device that the gear ratio of variator provides the gear ratio of needs；By controlling the internal combustion engine of operation, improving the rotating speed of the internal combustion engine run especially through control fuel supply, particularly bring up to the device of the rotating speed of needs after separating clutch；Be used for again making, with the gear ratio that variator needs, the device that clutch engages, when the rotating speed of the internal combustion engine run reaches a predetermined rotating speed of rotating speed as required, described device is provided, wherein, when the draw ratio of variator is different from the gear ratio of the needs of variator, the rotating speed of the rotating speed referring to needs or the needs reducing predetermined threshold value.
Pre-determine to calculate especially draw ratio and variator is adjusted this predetermined draw ratio by the rotating speed of the power shaft according to variator or output shaft according to a kind of embodiment and the draw ratio of variator is provided.Calculating according to a kind of embodiment draw ratio can include and particularly consult at certain consulting certain draw ratio in table.
Corresponding to this, described system includes following device: for pre-determining according to the rotating speed that starts of the power shaft of variator and the rotating speed of output shaft and internal combustion engine, particularly calculate the device of draw ratio and for variator being adjusted the device of predetermined draw ratio.
The actual speed of output shaft is transformed to one of power shaft according to a kind of embodiment to be determined in advance as draw ratio at or above the minimum possible gear ratio of the special top gear position of the variator of the rotating speed starting rotating speed.When such as 6th gear () is transformed to one of power shaft at or above when starting the rotating speed of rotating speed the actual speed of output shaft, then this 6th gear can be pre-determined as draw ratio.When a relatively low rotating speed only fifth gear position according to output shaft and less gear are transformed to one of power shaft at or above when starting the rotating speed of rotating speed the actual speed of output shaft, then fifth gear position that is minimum possible gear ratio can be pre-determined as draw ratio.
Corresponding to this, described system can include for using the minimum possible gear ratio of the variator device as draw ratio, and the actual speed of output shaft is transformed to one of power shaft at or above the rotating speed starting rotating speed by described variator.
According to another embodiment, by improving the gear ratio of variator especially from a minimum possible gear ratio, and/or by accessing low gear (nachunterschalten), until the rotating speed of power shaft or output shaft meets a condition, it pre-determines according to the beginning rotating speed of internal combustion engine, especially until the rotating speed of power shaft is at or above starting rotating speed, thus provide the draw ratio of variator.Gear ratio when described condition meets can be draw ratio now.Draw ratio can be provided by this way in a simple and reliable manner according to a kind of embodiment.
Corresponding to this, described system includes such device, it is for improving the gear ratio of variator, especially from a minimum possible gear ratio, and/or by accessing low gear, until the rotating speed of power shaft or output shaft meets a condition, this condition pre-determines according to the beginning rotating speed of internal combustion engine, especially until the rotating speed of power shaft is at or above starting rotating speed.
According to a kind of embodiment, before needs internal combustion engine operation, especially from sail mode start the draw ratio of variator is just provided.The traction of internal combustion engine can be started rapidly by this way.
Corresponding to this, described system include for before needing internal combustion engine operation especially from sail mode start the device of draw ratio of variator is just provided.
According to a kind of embodiment can during sail mode rotating speed according to power shaft or output shaft and start rotating speed and change the draw ratio of variator, especially when the rotating speed of power shaft or output shaft changes.One draw ratio optimized can be provided by this way, it depends on the actual speed of the power shaft of variator or output shaft: when rotating speed reduces due to reducing speed of motor vehicle, therefore, it is possible to provide bigger draw ratio, there is provided a relatively low gear especially, in order to power shaft is also all the time at least to start rotational speed.
Corresponding to this, described system can include during sail mode the rotating speed according to power shaft or output shaft and start the device that rotating speed changes the draw ratio of variator, especially when the rotating speed of power shaft or output shaft changes.
The gear ratio of the rotating speed of the needs of internal combustion engine and/or the needs of variator can select according to the input of driver, the position of special throttle and/or gear and/or rotating speed according to the speed of motor vehicles or the output shaft of variator is determined.Such as, when when driver is pressed downward against the position of throttle to regulation under sail mode, motor vehicles continues motion with the speed of regulation, may determine that the one of internal combustion engine in requisition for rotating speed and/or one of the variator gear ratio needed, in order to the hope of reflection driver: from its actual speed acceleration motor vehicles.
Corresponding to this, described system can include the input according to driver, the position of special throttle and/or gear select and/or according to motor vehicles or the rotating speed of output shaft of variator determine the device of gear ratio of the rotating speed of needs of internal combustion engine and/or the needs of variator.
Described device can pass through software, special computer program or computer program module and/or according to an aspect of the present invention by being designed to carry out the hardware of method described herein, special computer or microprocessor device embodiment, one or more sensor and/or executor and described computer or microprocessor device communication and being controlled especially through it or they；They can also pass through computer program, special data carrier or data storage device and embody, described data medium or data storage device include program code, perform method described herein when performing this program code in computer or microprocessor device.Computer program or computer program module can store in nonvolatile manner especially in data medium or data storage device.
Described device realizes especially in an equipment and especially in a control equipment and/or a driving ancillary equipment.
Described system can also so be understood, and namely it includes a device in the meaning of functional module structure, and this functional module structure should pass through computer program or computer program module embodies or implements.
Accompanying drawing explanation
The other feature of the present invention is from below on disclosed in explanation preferred embodiment.For in this accompanying drawing that part schematically illustrates below:
Fig. 1 represents a part for the motor vehicles according to one embodiment of the present invention；
Fig. 2 represents the method according to one embodiment of the present invention, and wherein said method is realized by computer program or computer program module；
Fig. 3 represents the change of the state of motor vehicles in realizing the time course of period of described method.
Detailed description of the invention
Fig. 1 represents a part for the motor vehicles according to one embodiment of the present invention, including a driving chain, described driving chain has 10, automatic transmission 30 of an internal combustion engine and one for connecting the automatic clutch 20 of variator 30 and internal combustion engine 10 and a device for controlling engine (ECM) 50 having for controlling described driving chain.
Clutch 20 includes an automatically controlled executor 21, and it is automatically controlled by ECM50.
Variator 30 includes six gears separately, one by the ECM50 automatically controlled executor 33 automatically controlled and an output shaft 32 being connected with the driving wheel 40 of motor vehicles.The rotating speed of power shaft 31 is shown to ECM50 by sensor 51, and the rotating speed of output shaft 32 is shown to ECM50 by sensor 52.
Explaining in detail for controlling the method driving chain referring now to Fig. 2 and 3, the method performs by including the system of ECM50.
Determine whether driving chain is in sail mode at first step S10.As long as driving chain (S10: " N ") not in sail mode, then repeat step S10.
When determining that driving chain is in sail mode (S10: " Y "), ECM50 proceeds to step S20, wherein provides draw ratio according to the beginning rotating speed of the rotating speed of the power shaft 31 of variator 30 or the output shaft 32 of variator 30 and internal combustion engine 10.
Described beginning rotating speed can be determined with its minimum speed automatically worked as internal combustion engine 10 in advance.Starting rotating speed less than the idler revolutions of internal combustion engine 10 and can be such as the rotating speed less than per minute 600 turns.
The actual speed of output shaft 32 is transformed to a minimum possible gear ratio at or above the variator 30 of the rotating speed starting rotating speed of power shaft 31 or the highest gear by calculating, there is provided variator 30 draw ratio, here this gear ratio as draw ratio pre-determine and operations actuator 33 to access this draw ratio or gear.
According to another embodiment by improving the gear ratio of variator 30 from a minimum possible gear ratio and access low gear, until the rotating speed of power shaft 31 is at or above starting rotating speed, provide the draw ratio of variator.When the gear ratio started has been transformed to the actual speed of output shaft 32 one of power shaft 31 at or above when starting the rotating speed of rotating speed, this raising can be zero.
ECM50 determines the need for the operation of internal combustion engine 10 according to the position of a throttle 60 detected by sensor 61 in step s 30.
As long as not needing the operation (S30: " N ") of internal combustion engine 10, just repeat step S20.
When the rotating speed of output shaft 32 changes due to the deceleration of motor vehicles, therefore the draw ratio of variator can change during sail mode.When rotating speed reduces due to the deceleration of motor vehicles, corresponding to this can provide higher draw ratio, particularly provide relatively low gear, in order to power shaft 31 is still all the time at least to start rotational speed.
When needing the operation of internal combustion engine 10 (S30: " Y "), ECM50 draws internal combustion engine 10 to starting rotating speed in step S40.This is realized i.e. by corresponding operating executor 21 by automatically part engaged clutch 20.
Before, during and/or after this external running under power, ECM50 is set to supply fuel to internal combustion engine 10 in step s 40.It is made to put into operation when internal combustion engine 10 reaches to start rotating speed by this way.
ECM50 determines whether internal combustion engine 10 has be carried out its operation in step s 50.As long as internal combustion engine 10 not yet works voluntarily (S50: " N "), ECM50 is maintained for running under power.
When ECM50 determines that internal combustion engine 10 has be carried out its operation (S50: " Y "), described method proceeds to step S60, wherein determines that whether the draw ratio provided is different from the gear ratio of the needs of variator 30.
The gear ratio of the needs of variator can be determined according to the input of driver, the special position according to throttle 60 and/or gear selection and/or the rotating speed according to output shaft 32.
When the gear ratio that ECM50 determines draw ratio and the needs provided is different (S60: " Y "), described method proceeds to step S70, and wherein ECM50 separates clutch 20 again by corresponding operating executor 21.
In follow-up step S80, ECM50 changes the gear ratio of variator 20 by corresponding operating executor 33 provides the gear ratio of needs.
In step S90, ECM50 supplies, by controlling the fuel of internal combustion engine 10, the rotating speed rotating speed of internal combustion engine 10 being brought up to needs.The rotating speed of the needs of internal combustion engine 10 can be determined according to the gear ratio of the needs of variator, and it can be determined by the rotating speed according to the position of throttle 60 and/or according to output shaft 32.
Although performing after step S80 according to Fig. 2 step S90, but even it can executed in parallel start with it before step S80.
Determine whether internal combustion engine 10 reaches the rotating speed needed in step S100ECM50.As long as internal combustion engine 10 not yet reaches the rotating speed (S100: " N ") needed, ECM50 continues to improve rotating speed.
When ECM50 determines that internal combustion engine 10 reaches rotating speed (S100: " Y ") needed, its operations actuator 21, in order in step S110 engaged clutch 20 again.
Along with step S120 in ECM50 continue control run internal combustion engine 10, the latter is connected with driving wheel 40 with the gear ratio of the needs of variator 30 now.
When ECM50 is when step S60 determines the draw ratio provided corresponding to the gear ratio needed (S60: " N "), its operations actuator 21, in the at a fully engaged clutch 20 of step S130, and to proceed to step S120, in order to control the operation of internal combustion engine 10.
Fig. 3 depends on the time t (from the top down) performing described method therebetween and represents the rotating speed n of output shaft 3232, the position of throttle 60, power shaft 31 rotating speed n31, internal combustion engine 10 rotating speed n10, the gear ratio of variator 30 or gear i30With the state of clutch 20, wherein " o " represents that clutch fully opens or separates, and " c " represents that clutch completely closes or engages.
At time point t0Position according to throttle 60 starts sail mode, wherein separates clutch 20 (" o ") and internal combustion engine 10 does not run (n10=0).
Owing to the 6th gear of a high velocity transmission 30 of motor vehicles is the rotating speed n of output shaft 3232It is transformed to the rotating speed n of power shaft 3131, it is higher than predetermined beginning rotating speed, and the latter is represented by a dotted line in figure 3.Therefore 6th gear provides as (beginning or first) draw ratio, and this is by calculating 6th gear or being directly accessed this gear and realize, or by starting at the highest gear and accessing low gear realization, if the rotating speed n of power shaft 3131Below beginning rotating speed should be dropped to.
At time point t1The speed of motor vehicles thus output shaft 32 and with the rotating speed of its power shaft 31 being connected by 6th gear owing to running resistance declines so that the rotating speed n of power shaft 3131It is no longer above starting rotating speed.Yet with the fifth gear position of bigger multi-ratio transmission 30 this relatively low rotating speed n of output shaft 3232Also it is transformed to a rotating speed n of power shaft 31 all the time31, it is now again higher than starting rotating speed.Therefore now fifth gear position being provided as (new) draw ratio, this is by calculating this fifth gear position or being directly accessed in it to realize, or by starting in 6th gear and accessing the low gear rotating speed n until power shaft 3131It is again equal to or realizes higher than starting rotating speed.
At time point t2Require that internal combustion engine 10 runs by being pressed downward against throttle 60.It is connected with this respective clutch 20 part, in order to traction internal combustion engine 10 is to starting rotating speed, and this rotating speed is at time point t3Reach.
At time point t3Clutch 20 is kept completely separate again, in order to access a gear needed, for instance access third gear position.In interlude, continue to improve the rotating speed n of the internal combustion engine 10 run now30, until to time point t4Reaching a synchronous rotational speed, it is at least substantially corresponding to the rotating speed n of power shaft 3131。
Therefore at time point t4Clutch 20 is at a fully engaged, and the internal combustion engine 10 run continue with need, variator 30 in provide third gear position operation.
ECM50 can have the microprocessor device (CPU) of and storage system and the numeral of bus system data cube computation.Replace ECM automotive system can have another type of processor, to provide the logical device of electronics, for instance the control equipment (English is embeddedcontroller) embedded, a car-mounted computer or each other kinds of processor that can use in vehicle.Described CPU is configured to, and processes the instruction realized as the program of storage in accumulator system；Detect from the input signal of data/address bus with to data/address bus output signal output.Storage system can have various storage medium, such as optics, magnetic, solid and that other are non-volatile medium.Data/address bus can design and receive that simulate and/or numeral signal for sending to various sensors and control equipment, from them and modulate these signals.Described program can so be set up so that it can embody or realize method described herein, in order to CPU is able to carry out the step of this control method.
The program stored within the storage system from outside by cable connection in the way of or by radio supply control equipment.In the outside of described system, it generally occurs on certain computer program, the latter at professional field also referred to as computer or machine-readable medium, and it should be understood as the computer program code on certain carrier, described carrier especially has volatile or non-volatile characteristic in this case, as a result of which it is, the volatile or non-volatile characteristic of people's alternatively computer program.
One example of volatile (fl ü chtig) computer program is certain signal, for instance the signal of an electromagnetism such as optical signal, it is a kind of volatile carrier for described computer program code.This carrier of computer program code can pass through to use the conventional modulator approach such as qpsk modulation signal for numerical data to realize so that the binary data representing described computer program code is stamped in volatile electromagnetic signal.Such signal such as uses when wirelessly being connected and transmitted computer program code by WiFi to notebook computer.
When non-volatile computer program, computer program code embodies in a storage medium connecting substrate.This storage medium is above-mentioned non-volatile carrier at that time so that computer program code for good and all or non-permanently by the way of may bring up in this medium or store thereon.Described storage medium can be conventional type, as known in the field of computer technology, for instance flash memory, ASIC, CD etc..
In foregoing general description and at least one exemplary form of implementation described in specifically describing；It should be appreciated that still suffer from substantial amounts of modification.It is to be further appreciated that exemplary form of implementation is only citing, and it is not considered as constructing restriction in any form to according to protection scope of the present invention, application and equipment.More precisely; general introduction with specifically described be provide teachings for implementing at least one exemplary form of implementation for professional; it is to be understood that; various amendment can be carried out in the function of described assembly and layout, combine determined protection domain without departing from claims and equivalent feature.
List of numerals
10 internal combustion engines
20 clutches
21 executors
30 variators
31 power shafts
32 output shafts
33 executors
40 driving wheels
50ECM
51,52,61 sensor
60 throttles
Claims (12)
1. the method for controlling the driving chain of motor vehicles, wherein said driving chain includes internal combustion engine (10), automatic transmission (30) and is used for connecting the automatic clutch (20) of variator (30) and internal combustion engine (10), and wherein said method includes below step:
A) during sail mode, wherein when motor-driven vehicle going, internal combustion engine (10) does not run and clutch (20) separation, provides the draw ratio of (S20) variator (30) according to the beginning rotating speed of the rotating speed of the power shaft (31) of variator (31) or output shaft (32) and internal combustion engine (10)；
B) automatically at a fully engaged by clutch (20) when needs internal combustion engine (10) runs or part engagement draws (S40) internal combustion engine (10) until starting rotating speed；
C) internal combustion engine (10) is automatically fed (S40) fuel；With
D) internal combustion engine (10) of auto-controll operation.
2. method according to claim 1, wherein by drawing internal combustion engine (10) to starting rotating speed and supplying fuel, makes internal combustion engine (10) put into operation.
3., according to the method one of the claims Suo Shu, wherein the beginning rotating speed of internal combustion engine (10) is lower than the idler revolutions of internal combustion engine (10).
4. according to the method one of the claims Suo Shu, wherein after internal combustion engine (10) being drawn to beginning rotating speed, by controlling the internal combustion engine (10) run, afterwards and/or supplied by control fuel in separation (S70) clutch (20) especially, continue the rotating speed rotating speed (S90) to needs of the internal combustion engine (10) that raising runs.
null5. according to the method one of the claims Suo Shu，Wherein internal combustion engine (10) is being drawn separation (S70) clutch (20) again after (S40) arrives beginning rotating speed，The gear ratio (S80) of needs is wherein provided by changing the gear ratio of variator (30)，Wherein after separating clutch (20)，By controlling the internal combustion engine (10) run，Especially through controlling fuel supply，The rotating speed improving the internal combustion engine (10) that (S90) runs particularly improves until the rotating speed needed，And if the draw ratio of the wherein offer of variator (30) is different from the gear ratio of the needs of variator (30)，Then again engage (S110) clutch (20) with the gear ratio of the needs of variator (30)，The gear ratio of these needs provides when the rotating speed of internal combustion engine (10) run reaches the predetermined rotating speed of rotating speed as required.
6. according to the method one of the claims Suo Shu, wherein, pre-determined by the beginning rotating speed of the rotating speed of the power shaft (31) according to variator (30) or output shaft (32) and internal combustion engine (10), particularly calculate draw ratio, and by variator (30) is adjusted to this predetermined draw ratio or by especially starting to improve the gear ratio of variator (30) from minimum possible gear ratio, until the rotating speed of power shaft (31) or output shaft (32) meets a condition, described condition pre-determines according to the beginning rotating speed of internal combustion engine (10), especially until the rotating speed of power shaft (31) is at or above starting rotating speed, the draw ratio of variator (30) is provided.
7., according to the method one of the claims Suo Shu, wherein the actual speed using output shaft (32) of variator (30) is transformed to being determined in advance at or above the minimum possible gear ratio of rotating speed starting rotating speed of power shaft (31) as draw ratio.
8. according to the method one of the claims Suo Shu, wherein before the operation of internal combustion engine (10) is required, especially from sail mode start the draw ratio of variator (30) is just provided.
9. according to the method one of the claims Suo Shu, wherein rotating speed according to power shaft (31) or output shaft (32) and start rotating speed and change the draw ratio of variator (30) during sail mode.
10. the system driving chain being used for controlling motor vehicles, wherein said driving chain includes internal combustion engine (10), automatic transmission (30) and is used for the automatic clutch (20) connecting variator (30) with internal combustion engine (10), wherein said system is arranged for carrying out according to the method one of the claims Suo Shu, and/or wherein said system includes below portion:
There is provided the device (50,51,52,33) of the draw ratio of variator (30) during sail mode for the rotating speed of the power shaft (31) according to variator (30) or output shaft (32) and the beginning rotating speed of internal combustion engine (10), under described sail mode, when motor-driven vehicle going, internal combustion engine (10) does not run and clutch (20) is separated；
When needing internal combustion engine (10) to run, being used for drawing internal combustion engine (10) until starting the device (50,21,61) of rotating speed, method is automatically completely or partially engaged clutch (20)；
For automatically giving the device (50) of internal combustion engine (10) supply fuel；With
For automatically controlling the device (50) of the internal combustion engine (10) run.
11. a motor vehicles, particularly car, connects driving chain and controlling the system of described driving chain according to being used for one of the claims Suo Shu of the variator (30) automatic clutch (20) with internal combustion engine (10) including having internal combustion engine (10), automatic transmission (30) and being used for.
12. computer program, it includes a source code for storage in a kind of computer-readable data medium, for performing according to the method one of the claims Suo Shu.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015000464.6 | 2015-01-15 | ||
| DE102015000464.6A DE102015000464A1 (en) | 2015-01-15 | 2015-01-15 | Method and system for controlling a drive train of a motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105799703A true CN105799703A (en) | 2016-07-27 |
Family
ID=56293564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610139238.1A Pending CN105799703A (en) | 2015-01-15 | 2016-01-15 | Method and system for controlling driving chain of automobile |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105799703A (en) |
| DE (1) | DE102015000464A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401124A (en) * | 2010-09-16 | 2012-04-04 | 铃木株式会社 | Control device of vehicle power transmission mechanism |
| CN102588574A (en) * | 2011-01-14 | 2012-07-18 | 通用汽车环球科技运作有限责任公司 | Method and means for controlling the downshifting |
| CN103032187A (en) * | 2011-09-28 | 2013-04-10 | 罗伯特·博世有限公司 | Method for operating internal combustion engine |
| CN103477128A (en) * | 2011-04-20 | 2013-12-25 | 奥迪股份公司 | Method for operating a motor vehicle in deceleration |
| CN103619685A (en) * | 2011-06-30 | 2014-03-05 | 大众汽车有限公司 | Method for operating a motor vehicle |
-
2015
- 2015-01-15 DE DE102015000464.6A patent/DE102015000464A1/en not_active Withdrawn
-
2016
- 2016-01-15 CN CN201610139238.1A patent/CN105799703A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401124A (en) * | 2010-09-16 | 2012-04-04 | 铃木株式会社 | Control device of vehicle power transmission mechanism |
| CN102588574A (en) * | 2011-01-14 | 2012-07-18 | 通用汽车环球科技运作有限责任公司 | Method and means for controlling the downshifting |
| CN103477128A (en) * | 2011-04-20 | 2013-12-25 | 奥迪股份公司 | Method for operating a motor vehicle in deceleration |
| CN103619685A (en) * | 2011-06-30 | 2014-03-05 | 大众汽车有限公司 | Method for operating a motor vehicle |
| CN103032187A (en) * | 2011-09-28 | 2013-04-10 | 罗伯特·博世有限公司 | Method for operating internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015000464A1 (en) | 2016-07-21 |
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Application publication date: 20160727 |