CN105587850B - Speed manually controlling than selection in automatic transmission - Google Patents
Speed manually controlling than selection in automatic transmission Download PDFInfo
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- CN105587850B CN105587850B CN201510745248.5A CN201510745248A CN105587850B CN 105587850 B CN105587850 B CN 105587850B CN 201510745248 A CN201510745248 A CN 201510745248A CN 105587850 B CN105587850 B CN 105587850B
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- 230000005540 biological transmission Effects 0.000 title abstract description 27
- 230000001276 controlling effect Effects 0.000 title description 5
- 230000001427 coherent Effects 0.000 claims description 22
- 230000000875 corresponding Effects 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
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- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000001264 neutralization Effects 0.000 description 2
- 230000002596 correlated Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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Abstract
A method of control is connected to the automatic transmission of the engine in motor vehicles, includes receiving the input signal generated via the application of power by the switch in vehicle.Switch has predetermined stroke, and is configured to ask speed, transmission than variation via the output signal for indicating the input signal being received.Output signal is received via the controller for being programmed with the engine speed range being allowed to.If requested speed will produce the engine speed in the engine speed range being allowed to than variation, speed changer is command by the variation executed from the currently selected speed ratio selected to another speed ratio.If the speed ratio variation in order speed changer, order switch execute total travel under the application of power.Alternatively, if the speed ratio not in order speed changer changes, order switch execution part stroke under the application of power.
Description
Technical field
The present invention relates to speed the manually controlling than selection that can be in automatic shifting transmission for motor vehicles.
Background technology
Modern passenger vehicles generally include powertrain, powertrain include engine, multi-speed can self shifter or from
Dynamic speed changer and differential or final driving member.Automatic multi-speed transmission is repeated by permission engine by its torque range
Repeatedly (multiple times) operates to increase total opereating specification of vehicle, is manually selected without vehicle operators specific
Speed ratio or gear range (gear range).The obtainable quantity of gear rank or speed ratio forward determines in speed changer
The number that engine torque bands are repeated.Epicycle or Planetary Gear Transmission can be used in automatic transmission as described above, or
Gear-power train of parallel axes is installed, such as in double-clutch speed changer (DCT), for specific speed, transmission ratio
It works.
Modern automatic transmission is typically controlled by electronic controller, and the electronic controller can be dedicated speed changer
Control unit (TCU) or Powertrain control module (PCM) configure entire powertrain, including engine in order to control.
How and when controller appropriate changes vehicle usually using the data provided by the sensor of each Vehicular system to calculate
In gear for optimum performance, fuel economy and shift quality.The controller of even now is usually programmed for selecting automatically
The transmission ratio of main body speed changer is selected, but modern automatic transmission also provides for vehicle operators to the manual of specific ratio selection
The option of control.
Invention content
The present invention discloses the multiple speeds that a kind of control is operably connected to the engine in motor vehicle driveline
Than can automatic shifting transmission method.This method includes receiving input signal via the switch of setting in the car.Switching
Utensil has predetermined stroke, and the speed ratio variation being configured in request speed changer.According to this method, until the input signal of switch
It is generated via the application of power.This method includes the output signal for the input signal being received via switch generation expression, and
Output signal is received via the controller for being programmed with the engine speed range being allowed to.This method further includes via control
Device determines the currently selected speed ratio selected in speed changer.
This method further includes, if the variation to another speed ratio will produce in the engine speed range being allowed to
Engine speed then executes the variation from the currently selected speed ratio selected to another speed ratio via control order speed changer.
This method further includes, if speed changer, which is command by from the currently selected speed ratio selected, changes to another speed ratio, in response to power
Application, execute full predetermined stroke via control order switch.Alternatively, this method includes, if speed changer not by
Order changes to another speed ratio from the currently selected speed ratio selected, then in response to the application of power, switches via control order
Device execution part stroke.
The action of order switch execution part stroke can indicate that the request to speed than variation has been rejected.Method can
Further include generating the signal that the request to speed than variation has been rejected via controller.Coherent signal can be at switch
Tactile or tactile feedback, visual display, and/or audible sound.
According to this method, switch can be configured in request speed changer plus gear.In addition, the engine speed model being allowed to
It encloses and may include the minimum engine speed being allowed to.Order speed changer is executed from the currently selected speed ratio selected to another speed ratio
Variation action can therefore order plus gear.
In different embodiments, switch can be configured to the downshift in request speed changer.The engine speed model being allowed to
It encloses and may include the maximum engine speed being allowed to.Order speed changer is executed from the currently selected speed ratio selected to another speed ratio
The action of variation then can order downshift.
This method can further include coherent input signal being received via switch, and identify or recognize via controller coherent
Input signal between time span.Method can further include the when span determined via controller between coherent input signal
Whether degree is less than critical time span.In addition, method may include, when the time span between coherent input signal is less than critical
When time span, shorten the variation executed from the currently selected speed ratio selected to another speed ratio via control order speed changer
Required time quantum.
Vehicle can further include sensor, be configured to the size of detection power, and output signal can be also represented by the size of power.Side
Rule can further include determining whether the size of power is more than critical force via controller.In addition, method can further include, when the size of power
When more than critical force, shorten to execute from the currently selected speed ratio selected changing to another speed ratio via control order speed changer
Required time quantum.
After order switch execution part stroke, if the application for the power of input signal is kept, method can
It further include the request kept via controller to the speed in speed changer than variation.In addition, in this case, method can be also
Including, when the variation to another speed ratio will produce the engine speed in the engine speed range being allowed to, via
Control order speed changer executes the variation from the currently selected speed ratio selected to another speed ratio.In addition, method may include,
After order switch execution part stroke, if the application for the power of input signal is not kept, via controller
Cancel the request to the speed in speed changer than variation.
On the other hand, after order switch execution part stroke, if the application for the power of input signal does not have
It is kept, method may include, if the variation to another speed ratio will generate not in predetermined time frame in the hair being allowed to
Engine speed in motivation velocity interval, that is, if it is determined that another speed ratio will be infeasible, then cancel to becoming via controller
The request of speed in fast device than variation.
According to this method, during input signal, the predetermined time frame of the application for power can be at 1000-3000 milliseconds
In the range of.
The steering wheel that vehicle may include steering column and be rotatably installed on steering column.In addition, switch may be provided at
On one in steering wheel and steering column, and it is configured to one or more position retaining plates (shift paddles).
Invention further discloses a kind of for controlling the engine being operably connected in motor vehicle driveline
Multiple speed than range can automatic shifting transmission system, have and be programmed to execute the controller of the above method.
The system includes：Switch, setting in the car, has predetermined stroke, and is configured in response to receiving via power
It is applied to switch and the input signal that generates and generates the output signal for indicating the input signal being received and ask speed changer
In speed ratio variation；And controller, operatively communicated with each of switch and speed changer, the controller be programmed with by
The engine speed range of permission.And the controller is configured to：Receive output signal；Determine in speed changer currently selected selects
Speed ratio；If the variation to another speed ratio will produce the engine speed in the engine speed range being allowed to,
Then order speed changer executes the variation from the currently selected speed ratio selected to another speed ratio；If speed changer is command by from described
The currently selected speed ratio selected changes to another speed ratio, then in response to the application of power, order switch executes full predetermined stroke；
And if speed changer, which is not command by from the currently selected speed ratio selected, changes to another speed ratio, in response to power
Apply, order switch execution part stroke.Order switch execution part stroke indicate to speed than variation request
It is rejected；And the controller is additionally configured to, and generates the signal that the request to speed than variation has been rejected.
The switch configurations are to ask in speed changer plus gear；The engine speed range being allowed to includes minimum
The engine speed being allowed to；And order speed changer executes the variation life from the currently selected speed ratio selected to another speed ratio
It enables plus keeps off.
The switch configurations are the downshift asked in speed changer；The engine speed range being allowed to includes maximum
The engine speed being allowed to；And order speed changer executes the variation life from the currently selected speed ratio selected to another speed ratio
Enable downshift.
When the switch receives coherent input signal, controller is additionally configured to：Determine the coherent input letter
Time span between number；Determine whether the time span between coherent input signal is less than critical time span；And work as
When time span between coherent input signal is less than critical time span, order speed changer shortens to execute to be selected from currently selected
Variation of the speed ratio to another speed ratio needed for time quantum.
The system further comprises sensor, the flat size for being configured to detect the power of the sensor, and exports letter
Number it is also represented by the size of the power, wherein the controller is additionally configured to：Determine whether the size of the power is more than critical force；
And when the size of the power is more than the critical force, order speed changer, which shortens, to be executed from the currently selected speed ratio selected to another
Time quantum needed for the variation of one speed ratio.
After ordering the switch execution part stroke, the application of the power for the input signal is kept, it is described
Controller is also configured to：When the variation to another speed ratio will produce the speed of the engine in the engine speed range being allowed to
When spending, the request to the speed in speed changer than variation is kept, and the speed changer is ordered to execute from the currently selected speed selected
Than the variation to another speed ratio；And after order switch execution part stroke, if for the input signal
The application of power is not kept, then cancels the request to the speed in speed changer than variation.
After order switch execution part stroke, the application for the power of the input signal is kept, controller
It is configured to, if the variation to another speed ratio will generate not in predetermined time frame in the engine speed model being allowed to
Interior engine speed is enclosed, then cancels the request to the speed in speed changer than variation.
The predetermined time frame of application for power is in the range of 1000-3000 milliseconds.
Vehicle includes steering column and the steering wheel that is rotatably installed on steering column, and wherein, and switch is setting
The position retaining plate on one in steering wheel and steering column.
The features described above and advantage of the present invention and other feature and advantage will be from optimal modes (one for carrying out the present invention
It is a or multiple) and embodiment (one or more) it is described in detail below together with attached drawing and appended claims when it is apparent.
Description of the drawings
Fig. 1 is using the schematic diagram of the vehicle of powertrain, which includes being connected to automatic transmission
Internal combustion engine and the position retaining plate of vehicle interior installation, the position retaining plate provide transmission control interface for operator；
Fig. 2 is the enlarged diagram of vehicle interior shown in FIG. 1, and with steering wheel, position retaining plate is pacified relative to steering wheel
Dress；
Fig. 3 is the enlarged schematic side view of vehicle interior shown in FIG. 1, and one of position retaining plate is shown located at total travel
Position；
Fig. 4 is another enlarged schematic side view of vehicle interior shown in FIG. 1, and one of position retaining plate is shown located at portion
Divide travel position；
Fig. 5 be control multiple speed shown in FIG. 1 than can automatic shifting transmission method flow chart, use Fig. 2-4
Shown in position retaining plate.
Specific implementation mode
Refer to the attached drawing, wherein identical reference numeral indicates that identical component, Fig. 1 show vehicle 10 comprising vehicle body 12,
The vehicle body 12 limits vehicle interior or passenger compartment 14.Vehicle 10 further includes multiple land wheels 16 and powertrain 18, which passes
Dynamic is 18 to be configured to start and promote vehicle, that is, operates vehicle within the scope of all speed ratios between low and high road speeds
.
Powertrain 18 includes the internal combustion engine 20 for generating engine torque T, and can further include a variety of additional work(
Rate source, such as one or more electric motor/generator (not shown).Powertrain 18 further includes multiple speed ratio can self shifter
Engine 20 is operatively coupled at least some wheels 16 by speed changer 22, also known as automatic transmission, is used for engine
Torque is transferred to wheel.Vehicle 10 further includes electronic control unit (ECU) or controller 24.Controller 24 is operably connected to move
Power power train 18, to control and coordinate the operation of engine 20 and speed changer 22.Each of engine 20 and speed changer 22 are also
It can individually be controlled by corresponding engine controller and transmission control unit, controller and control unit are also programmed to lead to each other
Letter, is worked with the overall control to powertrain 18.But for simplicity, the present invention is limited to description via controller 24
Control to powertrain 18.
What is be arranged in passenger compartment or vehicle interior 14 is various machineries, electrical and electromechanical assembly, constructs vehicle in order to control
And its each subsystem operation.As shown in Figure 1, such device includes the transmission gear of the operation for controlling speed changer 22
Digit selector 28 and steering wheel 26.As it is known to the person skilled in the art, steering wheel 26 typically in vehicle 10 rotatably
On steering column 30, and it is configured to that at least some wheels 16 is made to turn to.Similarly as it is known to the person skilled in the art, becoming
Fast device gear selector 28 --- it can be mechanical lever or electric mechanical switch --- is configured to, that is, is designed and configured to by vehicle
10 operator manipulates, in the specific speed ratio of speed changer 22, speed than being selected between range and/or operation mode
It selects.The certain operational modes of speed changer 22 may include the advance that engine torque can be used to that vehicle 10 to be made to move in one direction or
Drive mode, engine torque can be used to make the reversing mode that vehicle moves in the opposite direction along the side with drive mode, and
Engine torque is not passed to the neutral mode of wheel (one or more) 16.Speed changer 22 further includes car-parking model,
In car-parking model, speed changer prevents vehicle from moving.
Typically, automatic transmission, such as speed changer 22, including pinion unit, have output and input component or
Axis and multiple teeth parts, the teeth parts are usually the property of one or more planetary gear sets, for coupling input
And output shaft.Traditionally, torque transmitter --- such as clutch and brake --- choosing of the hydraulic actuating of correlated measure
Selecting property it is engageable, to activate said gear element, for establishing desired advance between axis in outputting and inputting for speed changer
With back-up speed ratio.Speed ratio is defined as speed changer input speed divided by speed changer output speed.Transmission input shaft is usual
Vehicle motor (for example, by fluid coupling, such as fluid torque-converter) is selectively can be connected to, and output shaft passes through
" power train (drive train) " is connected directly to wheel of vehicle.
Another speed ratio is shifted to from a speed ratio to be normally in response to engine's throttling device and car speed and execute, and
It is usually directed to release with current or acquisition speed than the clutch that associated one or more will detach, and applies
With speed that is desired or being command by than clutch that associated one or more will engage.For execution " downshift ", speed change
Device is transitioned into high speed ratio from low velocity ratio.Downshift is by will be with relatively low speed than associated clutch disengagement and simultaneously
Engagement realizes that it is at a relatively high speed than operation thus to reconfigure gear set with fair speed than associated clutch.
The selection of speed ratio in speed changer 22 then allows to effectively utilize engine torque, and hair is extended on a wide range of car speed
The operation of motivation 20.Typically, controller 24 is using from being connected to each of engine 20, speed changer 22 and other Vehicular systems
The signal of sensor, to determine when and how to carry out the shift between speed ratio in the transmission.
In drive mode, speed changer 22 may include multiple specific speed ratios.Such speed ratio generally include highest or
First Speed ratio provides the maximum multiplication of engine torque, effectively vehicle 10 to move forward since full cut-off.Highest
Speed ratio is generally significantly greater than 1:1, and 3 are typically larger than in modern automatic transmission:1.Other speed ratios in speed changer 22
Can be midrange speed ratio (one or more), this allows the effective use of obtainable engine torque, in drive mode
In with each road speeds promote vehicle 10.The range of such midrange speed ratio (one or more) can be significantly greater than 1:1
Until 1:1.Speed changer 22 can further include the minimum or maximum speed ratio for reducing by 20 speed of engine, to minimize engine noise
And fuel consumption, while using enough engine torques to keep vehicle to advance forward with cruising speed.Such most high speed
Degree is than usually less than 1:1.
Obtainable speed ratio can further include being more than 1 in reversing mode:1 high speed ratio, the reversing mode make
Engine torque doubles, effectively start vehicle 10 and retreat.In order to contribute to the control of speed changer 22, transmission gear
Selector 28 may include corresponding to aforesaid operations pattern, speed than the specific position of range, and/or each speed ratio, all may be used
It is limited by the tactile clamping pin mechanism (tactile detent) for being made a choice by the operator of vehicle 10.In other words,
Transmission gear selector 28 may include that precalculated position, the precalculated position particularly select in drive mode obtained by whole
Whole speed ratios in speed ratio, reversing mode or neutral mode.Vehicle 10 further includes switch 32, and setting multiplies in vehicle
In main cabin 14.If the enlarged view of Fig. 2 is as it can be seen that switch 32 can be configured to a pair of of position retaining plate 32A and 32B.Each position retaining plate 32A
There is the predetermined stroke T for responding applied power F with 32Bf(as shown in Figure 3) thus provides operator and the speed change of vehicle 10
Control interface between device 22.Alternatively, although not shown, switch 32 can be also configured to actuating device, in speed changer
On or near gear selector 28.
Each position retaining plate 32A, 32B are configured to receive input signal 34 in response to the application via power F and generate to be represented to
The output signal of the input signal of controller 24 and in speed changer 22 ask speed ratio change.As indicated, position retaining plate 32A settings
On the right side of steering wheel 26, and it is configured to request plus gear, and position retaining plate 32B is arranged in the left side of steering wheel 26, and be configured to ask
Seek downshift.But above-mentioned setting can overturn, thus, which position retaining plate 32A is arranged in the left side of steering wheel 26, position retaining plate 32B
It is arranged on right side.In addition, position retaining plate 32A, 32B can be set up directly on steering wheel 26, or setting is turning at steering wheel rear
On column 30 so that position retaining plate is located within the scope of vehicle operators finger extension, while the hand of operator is located on steering wheel.Gear
Plate 32A, 32B is intended to control ability of the speed in the speed changer 22 than selection via being manually entered to provide for operator, without
It is to rely on the speed ratio variation executed automatically.
Controller 24 provides operation communication between switch 32 and speed changer 22.Controller 24, which is also programmed with, to be allowed to
Engine speed range 38 comprising the engine speed 38A and the maximum engine speed 38B being allowed to that minimum is allowed to.
As understood by the skilled person, unacceptable low engine speed can cause engine 20 to undergo shutdown event, and
Unacceptable high engine speed can lead to the structural failure of engine.Correspondingly, the minimum engine speed 38A being allowed to
Typically such engine speed：It, can at it hereinafter, the torque deficiency of the generation of engine 20 for vehicle 10 to provide power
It can shut down, or generate uneven pliable (harshness) of undesirable NVH (also known as noise vibration) and/or running car.Separately
On the one hand, the maximum engine speed 38B being allowed to is typically such engine speed, and more than it, engine 20 passes through
That goes through output torque is decreased obviously or becomes structure constraint.
Controller 24 is also configured to receive output signal from position retaining plate 32A or position retaining plate 32B.Controller 24 is also configured to really
The currently selected speed ratio 40 selected in fixed or identification speed changer 22.Controller 24 is also configured to, if to another speed ratio
Variation will produce the engine speed in the engine speed range 38 being allowed to, i.e., the hair being allowed in minimum and maximum
Engine speed between motivation speed 38A, 38B, then order speed changer 22 execute from the currently selected speed selected than 40 to another
The variation of one speed ratio.Be sent to accordingly, in response to the input signal 34 at position retaining plate 32A speed changer 22 with execute from
Order instruction plus gear of the currently selected speed selected than 40 to the variation of another speed ratio.On the contrary, in response at position retaining plate 32B
Input signal 34 and be sent to speed changer 22 with execute from the currently selected speed selected than 40 to the variation of another speed ratio
Order instruction downshift.
In addition, controller 24 is configured to, changed to separately from the currently selected speed selected than 40 if speed changer 22 is command by
One speed ratio, then in response to the application of power F, order switch is executed, that is, is provided, full predetermined stroke Tf.In other words, position retaining plate
The full predetermined stroke T of 32A, 32BfOrder and execute and indicate that request of the operator to speed than variation has been received.In addition,
Controller 24 is configured to, if speed changer 22, which is not command by from the currently selected speed selected, changes to another speed ratio than 40,
Then in response to the application of power F, order position retaining plate 32A, 32B execution part stroke Tp(as shown in Figure 4).In other words, position retaining plate
The partial journey T of 32A, 32BpOrder and execute and indicate that request of the operator to speed than change has been rejected.Position retaining plate
The partial journey T of 32A, 32BpIt can be in total travel Tf40-60% in the range of, or operator is allowed to be easy to discover and portion
Branch journey TpWith total travel TfBetween difference some other stroke ranges.Fig. 4 is shown in partial journey TpThe position retaining plate of position
32A, and Fig. 3 is shown in full predetermined stroke TfThe position retaining plate 32A of position.Controller 24 can be also configured to generate signal 42, to refer to
Request of the operator to speed than variation --- adding gear or downshift --- has been rejected.Signal 42 can touch at switch 32
Send out tactile or tactile feedback 42A, such as via pushing back of being generated in response to input of the operator at position retaining plate 32A, 32B or
Pulse (as shown in Figure 4).Such touch feedback 42A can be for example by being arranged the single power at each position retaining plate 32A, 32B
Solenoid (individual force solenoid, be not shown) is realized.Signal 42 can also trigger the instrument board 44 in vehicle 10
On visual displays or indicator light 42B (as shown in Figure 1).In addition, signal 42 can trigger audible sound, it is intended to supplement
Or replace visual display and/or touch feedback.
In the case where position retaining plate 32A or position retaining plate 32B receive coherent discrete input signal 34, controller 24 can go back structure
Make the time span to determine between coherent input signal.In addition, controller 24 can determine such coherent input signal 34
Between determined time span whether be less than critical time span 46, wherein critical time span is programmed in controller
In.In order to execute the above-mentioned determination of the time span between coherent input signal 34, controller 24 includes internal clocking or meter
When device (not shown).Critical time span 46 can recognize that for a predetermined time amount, during the predetermined time, vehicle operators can
Select " trip stopping " in speed changer 22." trip stopping " is a kind of generic term, directly compares selection target from present speed for describing
The speed ratio of speed ratio changes, and ignores the selection for the speed ratio that each links up in-between.Such " trip stopping " can for example lead
It causes from the 8th speed than direct downshift to the 5th speed ratio, to provide the maximum engine speed being allowed to from powertrain 18
The permitted peak torque outputs of 38B are spent, and speed changer 22 does not select the 7th He physically before selecting the 5th speed ratio
6th speed ratio.During such " trip stopping " asks, when the time span between coherent input signal is less than the crash time
When span 46, controller 24 can also order speed changer 22 shorten execution changed to from the currently selected speed ratio selected it is another requested
Thus speed improves than required time quantum or shortens the vehicle response time.Correspondingly, when between coherent input signal 34
Order speed changer 22 shortens execution speed and may include than changing required time quantum when time span is less than critical time span 46
It orders " trip stopping ".
As shown in Fig. 2, vehicle 10 may include the sensor communicated with controller 24 48, the such sensing of wherein at least one
Device is located at each position retaining plate 32A, 32B, to detect corresponding input signal 34.Sensor 48 can be also configured to detection and keep off
The size of the power F of corresponding input signal 34 at position plate 32A, 32B, and will indicate that the output signal of the size of power F is communicated to control
Device 24 processed.In addition, controller 24 can extraly be configured to determine whether the size of power F is more than critical force 50, and when the size of power F
When more than critical force 50, order speed changer 22, which shortens to execute from the currently selected speed ratio selected, changes to another requested speed
Than required time quantum.
Controller 24 can be also configured to, and order specific position retaining plate 32A, 32B with execution part stroke in controller 24
TpLater, it if the application for the power F of input signal 34 is held by an operator, keeps becoming the speed ratio in speed changer 22
The request of change.In addition, controller 24 can be configured to, when the variation to another speed ratio will produce in the engine speed being allowed to
When spending the speed of the engine 20 in range 38, the request to the speed in speed changer 22 than variation, and order speed changer are kept
It executes from the currently selected speed selected than 40 to the variation of another speed ratio.Correspondingly, in this case, if operator
It is maintained at applied force F at corresponding position retaining plate 32A, 32B that part actuates, controller 24 will soon select as it can be executed safely
Select requested speed ratio.
Controller 24 can be also configured to, if another requested speed ratio can't be it is feasible, cancel to speed changer 22
In speed than variation request.According to the present invention, when the variation to another speed ratio will produce in the engine speed being allowed to
When spending the engine speed in range 38 and in predetermined time frame 52, requested speed ratio becomes feasible.Therefore, if control
Device 24 processed determines that requested speed will not generate in predetermined time frame 52 in the engine speed being allowed to than variation
When engine speed in range 38, the request to 22 medium velocity of speed changer than variation being kept can be cancelled.For input
The predetermined time frame 52 of the application of the power F of signal 34 can be set in the range of 1000-3000 milliseconds, after this, operation
The request of person is considered as time-out, and will need new input signal 34, output signal is sent to controller 24, to realize speed
Degree is than variation.Predetermined time frame 52 switch 32 the partial journey T being performedpIt is aforementioned to touch after place has passed
Feel that feedback 42A can be triggered via controller 24, thus to notify operator that the request to speed than variation has been cancelled.In addition,
Controller 24 can be configured to, if the application for the power F of input signal 34 is not kept, that is, as position retaining plate 32A or 32B
When being released, for specific position retaining plate execution part stroke TpOrder after, cancel in speed changer 22 speed ratio become
The request of change.
Fig. 5 describes the method 60 of the automatic transmission 22 in the powertrain 18 of control vehicle 10, such as relative to figure
Described in 1-4.Method 60 starts at frame 62, and wherein vehicle 10 is started by the torque of engine 20.After frame 62,
This method 60 marches to frame 64, wherein this method, which includes via switch 32, --- such as position retaining plate 32A or 32B --- receives
Input signal 34, the switch 32 are actuated via the application of power F.After frame 64, this method marches to frame 66.In frame
In 66, method includes via a generation output signal in position retaining plate 32A, 32B.From frame 66, this method marches to frame 68.
In frame 68, method includes receiving output signal via controller 24.After frame 68, method marches to frame 70, for via control
Device 24 processed determines the currently selected speed ratio 40 selected in speed changer 22.After block 70, this method marches to frame 72.
In block 72, method includes, if the variation to another speed ratio will produce in the engine speed being allowed to
Engine speed in range 38 is then executed from the currently selected speed selected than 40 via 24 order speed changer 22 of controller to another
The variation of one speed ratio.After frame 72, this method marches to frame 74.In box 74, method includes, if speed changer 22 is ordered
It enables from the currently selected speed selected and changes to another speed ratio than 40, then in response to the application of power F, via 24 order phase of controller
The position retaining plate 32A or 32B that should be actuated execute full predetermined stroke Tf.As above about described in Fig. 3, realizing full predetermined stroke TfPhase
Position retaining plate 32A or 32B is answered to indicate that the request to speed than variation has been received.
Alternatively, after frame 72, this method advances to frame 76.In block 76, method includes, if speed changer 22 does not have
It is command by from the currently selected speed ratio selected and changes to another speed ratio, then in response to the application of power F, ordered via controller 24
Switch 32 (the i.e. as shown in Figs 1-4 position retaining plate 32A or 32B that accordingly actuate) execution part stroke Tp.As above about Fig. 4 institutes
It states, realizes partial journey TpCorresponding position retaining plate 32A or 32B indicate that request to speed than variation has been rejected.In frame 76
Later, this method 60 may continue to frame 78, wherein method includes, via controller 24 generate to speed than variation request
Signal 42 through being rejected, the signal 42 intention are communicated to operator.
After frame 74, this method 60 can also march to frame 80, wherein method includes receiving to link up via switch 32
Input signal 34, and identify or recognize via controller 24 time span between coherent input signal.In frame 80, method
Further include being programmed into controller 24 via whether the time span between the coherent input signal 34 of the determination of controller 24 is less than
In critical time span 46.In addition, in frame 80, method includes, when the time span between coherent input signal is less than
When critical time span 46, shorten to execute from the currently selected speed ratio selected changing to separately via 24 order speed changer 22 of controller
One speed is than required time quantum.
After frame 74, this method 60 can also march to frame 82, wherein method includes determining power F via controller 24
Whether size is more than critical force 50.In frame 82, method further includes, when the size of power F is more than critical force 50, via controller
24 order speed changers 22 shorten to execute changes to another speed than required time quantum from the currently selected speed selected than 40.
After frame 76, this method 60 can also march to frame 84, wherein method includes being kept to speed change via controller 24
The request of speed in device 22 than variation.In frame 84, method further includes being permitted when the variation to another speed ratio will produce
When engine speed in engine speed range 38 perhaps, executes from currently selected and select via 24 order speed changer 22 of controller
Speed than 40 arrive another speed ratio variation.In addition, in frame 84, method include the position retaining plate 32A being actuated in order or
32B is with execution part stroke TpLater, if the application for the power F of input signal 34 is not kept, via controller
24 cancel the request to the speed in speed changer 22 than variation.
After frame 76, this method 60 can also march to frame 86, wherein method includes, if another requested speed ratio
Without becoming feasible in predetermined time frame 52, then cancel to the speed in speed changer 22 asking than variation via controller 24
It asks.As above about described in Fig. 1-4, when the variation to another speed ratio will produce in the engine speed range 38 being allowed to
When engine speed, requested speed ratio becomes feasible.After any of frame 74-86, this method can loop back to
Frame 64.
The detailed description and the accompanying drawings or view above have supported and described the present invention, but the scope of the present invention is only by right
It is required that limiting.Although the optimal mode and other embodiment for executing claimed invention has already been described in detail, exist each
Kind alternative design and embodiment, for putting into practice the present invention limited in the following claims.In addition, carrying in the present specification
Each embodiment feature or attached drawing shown in embodiment be not required to be understood to embodiment independently from each other.But
It is possible that each feature in one of embodiment example can be with other conceivable spies from other embodiment
One or more combinations of sign, and it is produced without the other embodiment with verbal description or refer to the attached drawing.Correspondingly, it is such its
He should also fall into the framework of scope of the appended claims embodiment.
Claims (9)
1. the multiple speed ratio that a kind of control is operably connected to the engine in motor vehicle driveline can self shifter change
The method of fast device, this method include：
Input signal is received via the switch of setting in the car, which has predetermined stroke, and is configured to request and becomes
Speed ratio variation in fast device, wherein the input signal is generated via the application of power to switch；
The output signal for the input signal for indicating to be received is generated via switch,
The output signal is received via the controller for being programmed with the engine speed range being allowed to；
The currently selected speed ratio selected in speed changer is determined via controller；
If the variation to another speed ratio will produce the engine speed in the engine speed range being allowed to, via
Controller carrys out variation of the order speed changer execution from the currently selected speed ratio selected to another speed ratio；
If speed changer is command by from the currently selected speed ratio selected and changes to another speed ratio, in response to the application of power, warp
By controller full predetermined stroke is executed come order switch；And
If speed changer is not command by from the currently selected speed ratio selected and changes to another speed ratio, in response to applying for power
Add, carrys out order switch execution part stroke via controller；
Wherein, the method further includes：
Coherent input signal is received via switch；
The time span between the coherent input signal is determined via controller；
Determine whether the time span between coherent input signal is less than critical time span via controller；And
When the time span between coherent input signal is less than the critical time span, via control order speed changer
Shorten the time quantum executed needed for the variation from the currently selected speed ratio selected to another speed ratio.
2. the method for claim 1, wherein the order switch execution part stroke indicates to become the speed ratio
The request of change has been rejected, and this method further includes generating the letter that the request to speed than variation has been rejected via controller
Number.
3. the method as described in claim 1, wherein：
The switch configurations are to ask in speed changer plus gear；
The engine speed range being allowed to includes the minimum engine speed being allowed to；And
It includes order plus gear that the order speed changer, which executes the variation from the currently selected speed ratio selected to another speed ratio,.
4. the method as described in claim 1, wherein：
The switch configurations are the downshift asked in speed changer；
The engine speed range being allowed to includes the maximum engine speed being allowed to；And
It includes order downshift that the order speed changer execution changes to another speed ratio from the currently selected speed ratio selected.
5. the method for claim 1, wherein vehicle further includes sensor, the sensor is configured to detect the power
Size, and output signal is also represented by the size of the power, and this method further includes：
Determine whether the size of the power is more than critical force via controller；And
When the size of the power is more than the critical force, shortens to execute from currently selected via control order speed changer and select
Time quantum needed for variation of the speed ratio to another speed ratio.
6. the method for claim 1, wherein after ordering the switch execution part stroke, keep for defeated
Enter the application of the power of signal, this method further includes：
The request to the speed in speed changer than variation is kept via controller；
When the variation to another speed ratio will produce the engine speed in the engine speed range being allowed to, via control
Device order speed changer processed executes the variation from the currently selected speed ratio selected to another speed ratio；And
After order switch execution part stroke, if the application for the power of input signal is not kept, via
Controller cancels the request to the speed in speed changer than variation.
7. method as claimed in claim 6, wherein after order switch execution part stroke, for input signal
The application of power is kept, and this method further includes, if the variation to another speed ratio will not generate quilt in predetermined time frame
Allow the engine speed in engine speed range, then cancels to the speed in speed changer asking than variation via controller
It asks.
8. the method for claim 7, wherein the predetermined time frame of the application for power is at 1000-3000 milliseconds
In range.
9. the method for claim 1, wherein vehicle includes steering column and the direction that is rotatably installed on steering column
Disk, and wherein, the reception input signal and generation output signal are via on one be arranged in steering wheel and steering column
And be configured to position retaining plate switch generate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/535,519 US9829098B2 (en) | 2014-11-07 | 2014-11-07 | Manual control of speed-ratio selection in an automatic transmission |
| US14/535,519 | 2014-11-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105587850A CN105587850A (en) | 2016-05-18 |
| CN105587850B true CN105587850B (en) | 2018-08-31 |
Family
ID=
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116368A (en) * | 2010-07-22 | 2011-07-06 | 浙江吉利汽车研究院有限公司 | Manual gear-shifting control method for automatic transmission |
| CN203756965U (en) * | 2014-03-05 | 2014-08-06 | 十堰达峰软轴有限公司 | Electronic gear shifting device |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116368A (en) * | 2010-07-22 | 2011-07-06 | 浙江吉利汽车研究院有限公司 | Manual gear-shifting control method for automatic transmission |
| CN203756965U (en) * | 2014-03-05 | 2014-08-06 | 十堰达峰软轴有限公司 | Electronic gear shifting device |
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| Date | Code | Title | Description |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180831 Termination date: 20211105 |