CN109210186A - Running driving device and method for manipulating running driving device - Google Patents
Running driving device and method for manipulating running driving device Download PDFInfo
- Publication number
- CN109210186A CN109210186A CN201810715449.4A CN201810715449A CN109210186A CN 109210186 A CN109210186 A CN 109210186A CN 201810715449 A CN201810715449 A CN 201810715449A CN 109210186 A CN109210186 A CN 109210186A
- Authority
- CN
- China
- Prior art keywords
- clutch
- driving device
- hydraulic press
- gear
- running driving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/0437—Smoothing ratio shift by using electrical signals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/44—Control of exclusively fluid gearing hydrostatic with more than one pump or motor in operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
- F16H2047/025—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type the fluid gearing comprising a plurality of pumps or motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1224—Adapting to failures or work around with other constraints, e.g. circumvention by avoiding use of failed parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
- F16H2061/1276—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is a friction device, e.g. clutches or brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/36—Inputs being a function of speed
- F16H59/46—Inputs being a function of speed dependent on a comparison between speeds
Abstract
A kind of running driving device and a kind of method for manipulating this running driving device are disclosed, the adjustable hydraulic press of two of them is connect for example, by three gear stages with axial brake device.Each gear stage can be connect by clutch with a hydraulic press in hydraulic press.According to the present invention, the output end for every hydraulic press and transmission mechanism is assigned speed probe respectively, so as to be monitored the opening and closing of clutch by means of the rotational speed difference on corresponding clutch.
Description
Technical field
The present invention relates to a kind of running driving devices of preamble according to Patent right requirement 1 and one kind for grasping
The method for controlling this running driving device.
Background technique
It is shown in 39 07 633 C2 of DE a kind of for running stepless adjustable hydrostatic running driving device
Method, wherein adjusting the hydraulic motor that pump driving has constant through-flow volume, driven shaft is via mechanical branched power
(jackshaft) drives output shaft, which acts in the axial brake device of its side and vehicle and connecting.In addition, adjusting pump driving tool
There is the motor of adjustable through-flow volume, which can be connected with exporting axis by clutch, thus by the way that suitably setting can
The hydraulic pump and adjusting motor of adjusting set transmission ratio almost steplessly.Here, clutch is implemented as gear shift sleeve.Through
By it, the hydraulic motor with adjustable through-flow volume can be in the case where high pulling force demand (high load), for example exist
It is switched in the case where low speed, for applying high torque, wherein then hydraulic pump is set to its maximum angle of oscillation
On degree.
A kind of improved hydrostatic running driving device is described in 0 483 543 B2 of EP, wherein being implemented as
Two adjustable hydraulic motors of axial piston machine are by forming the changeable gear stage of mechanical branched power and common
Output shaft act on connection, be similar to all solutions as previously described, by the output shaft can drive vehicle, for example
The wheel or vehicle bridge of wheel loader.
In operation, it is ensured that only then just mentioned when the power transmission that the clutch distributed has built up to output shaft cooperates
The torque of top adjustment motor.In the prior art, " opening " of identification clutch or a variety of possibility of " closed " be there is known herein
Scheme.It may be thus possible, for example, to which the previously given manipulation time generated by empirical value, clutch need under conditions of previously given
The manipulation time is for being introduced in the state of open or close.However, this with the previously given manipulation time
Method is problematic, because the time is according to the abrasion of clutch and the component of mechanical/hydraulic distributed and also basis
Running temperature and environmental condition and change.
In order to overcome this disadvantage, a solution is proposed in 10 2,014 219 646 A1 of DE, wherein using quiet
Hydraulic running driving device is connected with exporting axis by two adjusting motors for adjusting pump supply via mechanical branched power.
Here, the driven shaft of a hydraulic press in hydraulic press (adjusting motor) is directly connected with exporting axis by jackshaft.Another
The driven shaft of hydraulic press can be used to apply by the driven axis connection of another jackshaft and clutch and the hydraulic press being firstly mentioned
Add higher torque.In the known solution, furthermore there are two speed probes for setting, detect two driven shafts
Revolving speed, wherein the manipulation of clutch is carried out thus according to the rotational speed difference of two driven shafts.In this way, it can be achieved that according to turning
Speed difference come optimize coupling process, for example in terms of being quickly coupled very much or however in the side of " comfortable " coupling process
Face.
When the rotational speed difference on the input terminal of clutch and on output end is lower than target value, the torque of hydraulic motor is added to
It is to be carried out in the known solution.
The shortcomings that this solution, is that the quantity of gear stage is restricted, because directly being established by clutch
Power transmission cooperation between two driven shafts of hydraulic motor, then connects commonly through jackshaft and output shaft effect.
A kind of hydrostatic running driving device is shown in document DE 10 2,015 215 013, wherein unique liquid
Pressure motor is applied on output shaft via transmission component for driving wheel or vehicle bridge.Here, there are two transmissions for transmission component tool
Grade, described two gear stages can optionally be configured such that driven shaft and the drive of hydraulic motor by controlled clutch
Transmission ratio between moving axis is adjustable.The revolving speed of the driven shaft of the revolving speed and hydraulic press of output shaft is passed accordingly by revolving speed
Sensor detection.It the use of unique hydraulic motor is unfavorable, because otherwise the hydraulic motor of very big valuableness must be used to use
In the enough torques of application.
Summary of the invention
In contrast, task of the invention lies in provide a kind of running driving device and a kind of for manipulating traveling driving dress
The method set allows to realize multiple gear stages with the operational reliability that improves and with the consuming of low device technique.
The task is in terms of the running driving device by the feature combination of Patent right requirement 1 and in the side
The aspect of method is solved by the feature combination of the Patent right requirement 9 of subordinate.
Of the invention is advantageously improved the theme that scheme is dependent claims.
There are two adjustable hydraulic press (hydraulic motors) for running driving device tool according to the present invention, pass through machinery
Transmission component (mechanical branched power) drives the wheel or vehicle bridge of vehicle.Transmission component has at least two gear stages, until
Few two gear stages are respectively provided with clutch, via the clutch can establish to the power transmission cooperation-of output shaft with it is above-mentioned existing
Technology is different therefore every hydraulic press can be selectively connected with exporting axis by clutch.Traveling driving according to the present invention
Device also have the revolving speed for detecting drive shaft and two hydraulic presses speed probe and for manipulate hydraulic press and from
The control unit of clutch, wherein control unit be designed to according to drive shaft and in the hydraulic press in force flow at least
The rotational speed difference of one hydraulic press switches to execute gear switch/driving range.According to the present invention, thus in running driving device
The rotational speed difference on the revolving speed of every hydraulic press and output shaft and the thus input terminal of detection clutch and on output end is detected, and
Coupling process is controlled according to corresponding rotational speed difference.
In a preferred embodiment of the invention, running driving device is implemented there are three gear stage, is three gear stage difference
It is assigned clutch, so that being that each clutch in the clutch correspondingly also distributes respectively on input side and outlet side
Speed probe is used to detect the rotational speed difference of corresponding clutch.
If running driving device is carried out having time detection device, can detecte by the time detection device for beating
Time needed for opening or being closed corresponding clutch, then operational reliability can be further enhanced, wherein control unit quilt
It is designed to the output failure message when being more than the object time and does not introduce gear switch.That is, being examined by means of the time
Surveying device can for example monitor from the manipulation to clutch until the rotational speed difference on clutch is above or below predetermined mesh
Scale value passes through the time of (vergehen).
It provides in an embodiment according to the present invention, is designed in this way control unit, so that the hydraulic press being located in force flow
Torque is reduced to minimum value, is preferably reduced to small incidental expenses controls another hydraulic press in gear switch and in the right way
Torque.
Here, can for example be detected by time detection device or by additional time detecting element from order to switch
The torque of hydraulic press, which reduces, starts elapsed time, wherein and then assume to have sent out after predetermined time interval
Raw torque reduces.Certainly, the state of hydraulic press can also be alternatively realized by direct or indirect measurement, wherein example
Through-flow volume is such as detected by swing angle sensor.
When being closed clutch it is particularly advantageous that the power transmission of clutch fits through modulating device modulation, so that for example
Closing course it is comfortable-or time-optimized process can set.
When running driving device is carried out faulty recognition component, operational reliability can be further improved, by this
Fault-signal can be generated when being more than target value, to not execute gear switch in fault identification element.
When clutch can be manipulated in electricity or electro-hydraulic mode, then the manipulation of clutch is particularly simple.
Method regulation according to the present invention for manipulating this running driving device, the basis first before gear switch
Previously given ramp function reduces the torque for the hydraulic press being located in force flow, and then manipulates distributed clutch.?
This when rotational speed difference is greater than minimum speed difference, indirectly or directly detects clutch via speed probe according to the present invention
Input terminal on and output end on rotational speed difference and identification state " clutch opening ".Alternatively, when rotational speed difference is greater than most
When big rotational speed difference, state " clutch closure " is detected.
Here, if the rotational speed difference in the object time is no more than minimum speed difference in " opening clutch " or in " closure
In clutch " not less than maximum (top) speed it is poor, then can additionally by time detecting element detect for controlled clutch when
Between and generate fault-signal.
As have been already explained above, it is preferred that the closure of modulating clutch is for setting after a delay time
Soft (weich) power transmission cooperation.
Detailed description of the invention
Next a preferred embodiment of the present invention is explained in more detail by means of schematic diagram.Wherein:
Fig. 1 shows the hydraulic circuit diagram of the embodiment of running driving device according to the present invention, and
Fig. 2 a, 2b show the flow chart for illustrating the gear switch in the running driving device according to Fig. 1.
Specific embodiment
Line map strongly simplified, the embodiment of running driving device 1 according to the present invention according to shown in Fig. 1 have
Hydrostatic branched power 2, the branched power pass through mechanical branched power 4 and wheel loader (Radladers) etc.
Mobile working equipment vehicle bridge 6 or wheel connection.The running driving device being described more fully below is realized largely
The gear switch of upper automatic stepless.
Hydrostatic branched power 2 has driven by internal combustion engine 8, adjustable hydrostatic pump in a way known
10, which is for example embodied as axial piston and adjusts pump 10.This pump common, institute in the use in running driving device
Without further explanation.Hydraulic pump 10 is disposed in the circuit (Kreislauf) of the closure with two hydraulic presses 12,14
In.These hydraulic presses to work usually as hydraulic motor are equally to have variable through-flow volume (Schluckvolumen)
Axial piston make construction.Hydraulic pump 10 and hydraulic press 12,14 can be swung on zero-bit (Null), thus
(einstellbar) can be set by manipulating accordingly to move forward or travel backward.Here, two hydraulic presses 12,14
Working joint by working line 16,16a or 18,18a with the corresponding connector connection of parallel and hydraulic pump 10.
Other common construction components (Bauelemente), such as supply pump, supply valve in the circuit of closure is not shown
(Speiseventile), pressure limiting valve etc..
Each hydraulic press in hydraulic press 12,14 has output shaft or driven shaft 20,22, and the output shaft or driven shaft can
It is connect by mechanical branched power 4 with vehicle bridge 6 or wheel.The branched power 4 of the machinery has been carried out in the shown embodiment
The transmission component of three gear/driving ranges (area, Range).These gear stages are equipped with appended drawing reference 24,26,28 in Fig. 1.
Be assigned clutch 30(first clutch respectively for each gear stage in the gear stage 24,26,28), the second clutch of 32(
Device), 34(third clutch).By these clutches 30,32,34 correspondingly can establish or interrupt from hydraulic press 12,14 to
The force flow of output shaft.Output shaft 36 is connect via axial brake device 38 with vehicle bridge 6.
Each gear stage in gear stage 24,26,28 has the transmission ratio constructed by gear or jackshaft (Vorgelege)
(ü bersetzung), so that the revolving speed of driven shaft 20,22 is reduced (reduzieren)/be converted to for axial brake device 38
For in suitable level.The transmission ratio i is still explained in further detail below.
Each clutch in clutch 30,32,34 has clutch components 30a, 32a, 34a of input side, it is described from
Clutch component is connect with the driven shaft 20 or 22 distributed.Therefore, clutch 30 and 34 is via clutch components 30a, 34a and liquid
The driven shaft 22 of press 14 acts on connection, and clutch components 32a is connect with the driven shaft 20 of hydraulic press 12.Corresponding clutch
Outlet side clutch components be equipped with appended drawing reference 30b, 32b or 34b.The clutch components of the outlet side are then correspondingly
It is connect via gear stage 24,26,28 with output shaft 36.
The manipulation of clutch 30,32,34 in the shown embodiment via control unit 40 with electricity or electro-hydraulic mode into
Row.Control/signal line is represented by dashed line in Fig. 1.In the embodiment illustrated, clutch 30,32,34 is by being not shown
Operating element, the no current that for example switchs magnet or hydraulic operation cylinder connect (Stromlosschalten) to open.When this
When a little adjustment elements (Stellelement) are powered, clutch engages (einr ü cken) (" clutch closure ").Certainly, may be used
To use the clutch of active, wherein clutch is closed in the state of being not powered on and opens in the state of energization.
According to the line map in Fig. 1, the revolving speed of output shaft 36 and driven shaft 20,22 accordingly by speed probe 42,
44, it 46 detects and via the signal line of shown (angedeuteten) report (gemeldet) to control unit 40.
According to the table 1 being superimposed below, such as (two hydraulic motors, 3 gear stages) can be arranged by this 2+3 to set
Fixed three gear/driving ranges (area, Range), wherein clutch 30,32 is closed and 34 quilt of clutch in the first gear
It opens.
The second gear is set when only clutch 32 is opened.Then by closure clutch 34 and open other two from
Clutch 30,32 sets third gear.
The transmission ratio of the corresponding hydraulic press 12,14 set when setting these driving range/gears is also shown in table 1
i.Therefore, the transmission ratio in the first gear is on hydraulic press 14: i=6.103, and is on hydraulic press 12: i=3.033.
In the second gear, the transmission ratio of only the second gear stage 28 is effective (wirksam)；The transmission ratio is: i=
3.033.In third gear/driving range, only third gear stage 26 works (wirken)；Transmission ratio is then are as follows: i=1.342
(1.84).
Certainly, running driving device can also be carried out and furthermore or only two gears/traveling model with other transmission ratios
It encloses and is carried out.
Control/adjustable strategies original for manipulating above-mentioned running driving device 1 is explained by means of the flow chart in Fig. 2
Process in reason.Abbreviation as used herein can be learnt from reference signs list additional at specification end.
It is assumed that the first gear (area, Range1) is linked into and automatically should be upshiftd (hochgeschaltet).When interior
When the present load of combustion engine is relatively low, this upshift (up shifting) is usually then carried out.For this purpose, can for example give in advance
The load boundary value of internal combustion engine is determined, to reliably prevent overload (ü in next driving range/gear in upshift
Berlastung).
When the load of internal combustion engine has reached the maximum value and vehicle driver for example orders (abrufen) to accelerate
When total power, the downshift equally explained by means of Fig. 2 is then carried out.
Strategy described below for manipulating running driving device or for controlling gear switch is based on following substantially former
Reason:
Open clutch:
Before opening clutch, the torque of the hydraulic motor distributed is reduced to zero.If the torque of hydraulic press is about
Zero, then power off distributed clutch.When the rotational speed difference on the input terminal of clutch and on output end is greater than reference-or minimum turn
When speed difference, state " clutch opening " is then detected.
It is closed clutch:
Before being closed clutch, the torque of the hydraulic press distributed is also reduced to zero.Then the corresponding clutch in closure
Device is steered for short time interval in non-modulation mode, to reach the point that the trackslips (contact of clutch as quickly as possible
Point).After preset time interval, to clutch engagement (Kupplungseingriffs) be modulated to be in this way into
Row, so that the power transmission cooperation to hydraulic motor is continuously carried out with " gentle mode ".When the rotational speed difference on clutch is lower than pre-
First when given threshold value, such as maximum (top) speed difference, state " clutch closure " is then recognized.
In principle, if not detecting state " clutch closure " in previously given time interval or " clutch is beaten
Open ", then it carries out failure message (Fehlermeldung) and transmission mechanism keeps in its original state or switches back to just
In beginning state.
It explains by means of Fig. 2 a, the 2b of flow chart is collectively formed for running running driving device according to the present invention
Other details of method.
It is assumed that running driving device is set on the first gear stage 24, in first gear stage, according to above-mentioned table, from
Clutch 30 and clutch 32 are closed and clutch 34 is opened.In order to be switched to the second gear (area, Range 2), then
Clutch 30 must correspondingly be opened.
For example, when transmission mechanism output revolving speed be lower than wherein usually from the first gear switch to the second gear when revolving speed
Shi Jinhang upshift.In addition, on condition that there is no " step on the gas (kick down) deeply " to be manipulated and the present load of internal combustion engine is lower than
Same predetermined boundary value.In addition, travel board is located on predetermined adjusts path (Stellweges).These
Condition for upshift is usually known, thus need not (entbehrlich) about this details.Under these conditions, it controls
Device processed assumes that vehicle does not travel in overload level and is less than mechanical boundary (Grenzen), and be also not present by
Driver's is previously given for accelerating.
With this corresponding, it in the case where abiding by the condition, will be used for first from the first gear gear switch to second gear
The order of position is output to state A(TRC12_1A).As shown in Figure 2 a like that, then by hydraulic motor 14 in step RC12_A
Torque be reduced to zero, and controlled according to the torque for the hydraulic motor 16 being firstly mentioned according to previously given function another
The torque of platform hydraulic motor 12.Then can for example via swing angle or as described above by means of from for gear switch and
Manipulate the state (Status) or operation that elapsed time interval RC12_A determines hydraulic press 12,14 to hydraulic press
State.After by following time interval-carry out in the time interval from state TRC12_1A to state TRC12_AB
Transition-, then introduce gear switch (RC12_B), wherein clutch 30 by power-off opening.Concurrently, it is examined by the time
Device is surveyed to detect the time from being powered down clutch.Meanwhile it being detected by speed probe 44,46 and being turned on clutch 30
Speed difference.Once the rotational speed difference is poor greater than preset minimum speed, then recognizes state " clutch opening " and generate letter
Number TRC12_B2, terminates the handoff procedure (Schaltvorgang) in (abgeschlossen) second gear according to the signal.
However, at this on condition that have reached rotating speed of target in previously given time interval poor.If do not visited in the time interval
" clutch opening " signal is measured, then can export fault-signal TEC12_21A.Next, upshift is interrupted and transmission mechanism
It will be set by returning in the first gear (TRC21_ stopping).Vehicle can continue to travel and export instruction clutch in this way
30 locked fault-signals.
Switching from the second gear to third gear is substantially as identical from the first gear switch to the second gear
Under the premise of carry out.Correspondingly, on condition that the revolving speed of output shaft is lower than for the switching from the second gear to third gear
Process revolving speed limitation given in advance；It should step on the gas signal (Kick-Down-Signal) there is no deep, travel board does not have
Have and is manipulated and is manipulated on path (Grenzbet tigungsweges) in boundary, the coolant temperature of internal combustion engine completely
Degree is lower than boundary value etc..If meeting these switching conditions, exports switching signal TRC23_2A and generate gear first and cut
Signal RC23_A is changed, which is in state A to the gear switch from the second gear to third gear.Utilize this
Signal, is closed clutch 34 and via time detection device previously given such time interval again, in the time interval
Detect the rotational speed difference on clutch 34.There is in figure 2b with step TRC23_AB label the time of associated monitor speed
The beginning of detection.
In the case that rotational speed difference in the previously given time interval on clutch 34 is poor lower than maximum (top) speed, detection
To state " closure of clutch 34 ".Concurrently, whether the revolving speed of the distributed hydraulic press 14 of monitoring is greater than previously given
Revolving speed.
In the step of next label is, then by the torque settings of hydraulic press 14 to being suitable for from second
In gear switch to the value of third gear, and the torque of hydraulic press 12 is returned by ramp function (Rampenfunktion) and is set
To above freezing.
Then another delay time lag RC23_B is started by time detection device, and when being labeled as TRC23_BC
Between interval time interim the torque of hydraulic press 12 is reduced to zero, and then make clutch 32 in step RC23_C
Power-off.Here, as described above, during time interval TRC23_C3, and monitoring the rotational speed difference on clutch 32, and such as
The fruit rotational speed difference is poor greater than minimum speed, then it is active for detecting " clutch opening " signal-third driving range/gear then
(aktiv).
Then correspondingly from third gear the second gear (driving range) is switched back to the full extent and from second
Gear switch returns to the first gear.
It is introduced from third gear to the transition of the second gear by order TRC32_3A.In stage RC32_A, then first
The closure of clutch 32 is introduced, and is started via time detection device in the first time interval not being modulated wherein.When
Between be spaced and be chosen such that, allow after powered up clutch reach the point (Schleifpunkt) that trackslips (contact point,
Kisspoint).The period uses step TRC32_AB to characterize in figure 2b.Then with step during another time interval
RC32_B is modulated, and the modulation so carries out, so that the revolving speed of such as hydraulic press 12 is less than the revolving speed of hydraulic press 14.In step
After rapid RC32_C, removal activation modulation, and the rotational speed difference on clutch 32 is then checked in transition TRC32_CD whether
It is poor less than previously given maximum (top) speed.If it is the case, then detecting " closure of clutch 32 " signal (step TR32_
CD).
In next transition step RC32_D, the torque of hydraulic motor 14 then pass through ramp function be reduced to it is above freezing,
And the torque of hydraulic press 12 is kept within a predetermined range according to previously given function.In addition, starting another time
Interval, will do it adjusting (Verstellung) (TR32_ to two hydraulic presses 12,14 in the above described manner in the time interval
DE).Then in step RC32_E by after the time interval it is assumed that hydraulic press 12 is adjusted to predetermined revolving speed
In level, and generate the signal for being used to open (energization) clutch 34.As described above, then in the step TR32_E2 phase
Between, determine the rotational speed difference on clutch 34, and when the rotational speed difference is greater than above-mentioned minimum speed difference, detect state " clutch
The opening of device 34 "-terminates the gear switch to the second gear.
In order to downshift to the first gear, clutch 30 then must be also closed according to above-mentioned table.This passes through control unit
40 are introduced using order TRC21_2A.With it is such from third gear to the downshift of the second gear, with step RC21_A generate signal
" closure of clutch 30 " and start a time interval, without modulation during the time interval.In the time interval
During TRC21_AB then clutch is reached and is trackslipped a little, and is then activated with step RC21_B and modulated and start between another time
Every.It in the time interval, is so modulated, so that the revolving speed of hydraulic press 14 is less than the revolving speed (TRC21_ of hydraulic press 12
BC).In step RC21_C, after by above-mentioned time interval, then removal activates the modulation, and starts another time
Interval.During the time interval, then in step TR21_CD monitor clutch 34 rotational speed difference whether be less than it is previously given
Maximum (top) speed it is poor.If it is the case, then detecting state " closure of clutch 34 ", and started separately with step RC21_D
One time interval is adjusted the torque of hydraulic motor 12 and 14 to for first grade by means of ramp function in the time interval
In the predetermined level in position.After by the time interval and to the corresponding adjusting of hydraulic motor 12,14, then with step
Rapid TR21_D1 terminates downshift to the first gear.
In the figure, some steps are still depicted, if not meeting corresponding condition in above-mentioned time interval, are drawn
Enter the step.Fault identification is herein related to, then correspondingly carries out being reset to using the fault identification depending on accordingly
In the state of failure, for example reset to original state.The step of failure message/caused by failure, is in figure to mark TE32A_
23C, TE32B_23C, TE32C_23C, TE23A_32E, TE21A_12B, TE12_21A, TE21B_12B, TE21C_12B carry out table
Show, thus state is correspondingly set and can easily learn from the flow chart of a, 2b according to fig. 2 so that need not and this
Relevant explanation.
A kind of running driving device and a kind of method for manipulating this running driving device are disclosed, two of them can
The hydraulic press of adjusting is connect for example, by three gear stages with axial brake device.Each gear stage can pass through clutch and hydraulic press
In a hydraulic press connection.According to the present invention, the output end for every hydraulic press and transmission mechanism is assigned revolving speed biography respectively
Sensor, so as to be monitored the opening and closing of clutch by means of the rotational speed difference on corresponding clutch.
Reference signs list
1 running driving device
2 hydrostatic branched powers
4 mechanical branched powers
6 axis
8 internal combustion engines
10 hydraulic pumps
12 hydraulic presses/hydraulic motor
14 hydraulic presses/hydraulic motor
16 working lines
18 working lines
20 driven shafts
22 driven shafts
24 gear stages
26 gear stages
28 gear stages
30 clutches
32 clutches
34 clutches
36 output shafts
38 axial brake devices
40 control units
42 speed probes
44 speed probes
44 speed probes
Abbreviation:
RC gear switch (area's change)
Rng gear
TRC transits to another state (being transitioned into area's change state) of gear switch
RngX driving range or gear X
RCXY_Z is under Z condition, from gear X gear switch to gear Y
TRCXY_WZ is since state W, in gear switch state Z, from gear/driving range X gear switch to gear/row
Sail range Y.
Claims (11)
1. a kind of running driving device, the running driving device, which has through mechanical transmission component, drives wheel or vehicle bridge
(6) the adjustable hydraulic press of two (12,14), wherein the transmission component has at least two gear stages (24,26,28),
At least two gear stage is respectively provided with clutch (30,32,34), can establish by the clutch to output shaft (36)
Power transmission cooperation, and the running driving device have for manipulate the hydraulic press (12,14) and the clutch (30,
32,34) control unit (40), wherein being assigned speed probe for the output shaft (36) and every hydraulic press (12,14)
(42,44,46), and described control unit (40) is designed to according to the output shaft (36) and the hydraulic press in force flow
The rotational speed difference of at least one hydraulic press in (12,14) is come in particular according to the rotational speed difference on corresponding clutch (30,32,34)
Execute gear/driving range switching.
2. it is described three that there are three gear stage (24,26,28) for tool according to running driving device described in Patent right requirement 1
A gear stage is assigned clutch (30,32,34) respectively.
3. the running driving device according to Patent right requirement 1 or 2, with time detection device, the time detection
Device is for detecting for the time needed for the corresponding clutch of open or close (30,32,34), wherein the control
Unit (40) is designed to when being more than the object time, exports failure message and interrupts the gear switch.
4. the running driving device according to one of aforementioned patent claim, wherein described control unit (40) is designed
It is cut at the torque of the hydraulic press being located in the force flow (12,14) is reduced to minimum value, is preferably reduced to small incidental expenses in gear
It changes, and controls the torque of another hydraulic press (12,14) in the right way.
5. according to running driving device described in Patent right requirement 3 and 4, wherein can be detected such as via the time detection device
The torque of lower time, the hydraulic press described in the time (12,14) are changed, wherein described control unit (40) is designed
At when being more than the object time, exports and fault-signal and interrupt the gear switch.
6. the running driving device according to one of aforementioned patent claim, have for modulate the clutch (30,
32,34) modulating device that the power transmission in closure cooperates.
7. according to running driving device described in Patent right requirement 6, wherein it is described modulation only the clutch (30,32,
34) it has arrived at and is just carried out when trackslipping.
8. the running driving device according to one of aforementioned patent claim, wherein the clutch (30,32,34) with
Electricity or electro-hydraulic mode manipulates.
9. a kind of method for manipulating running driving device, the running driving device have by mechanical transmission mechanism come
Two adjustable hydraulic presses (12,14) of wheel or vehicle bridge (6) are driven, wherein the transmission mechanism has at least two transmissions
Grade (24,26,28), at least two gear stage are respectively provided with clutch (30,32,34), can be built by the clutch
The power transmission cooperation and the running driving device stood to output shaft (36) have for detecting the output shaft (36) and described
The speed probe (42,44,46) of the revolving speed of hydraulic press (12,14) and have for manipulate the hydraulic press (12,14) and
The control unit (40) of the clutch (30,32,34), it is characterised in that following steps:
The torque for the hydraulic press (12,14) being located in the force flow is reduced,
Distributed clutch (30,32,34) is manipulated, and
The rotational speed difference on the input terminal of the clutch (30,32,34) and on output end is indirectly or directly detected, and
It when the rotational speed difference is greater than minimum-or reference rotation velocity difference, detects state " clutch opening ", and when the rotational speed difference is big
When reference -/maximum (top) speed difference, state " clutch closure " is detected.
10. according to method described in Patent right requirement 9, wherein when the rotational speed difference " is opening clutch within the object time
When being no more than the minimum speed difference when device " or being not less than the maximum (top) speed difference at " closure clutch ", pass through the time
Detection device detects the time from manipulating to the clutch (30,32,34) and exports fault-signal.
11. the method according to Patent right requirement 9 or 10, wherein when being closed clutch (30,32,34), the clutch
Device is closed first until described trackslips a little, and then to the closure of the clutch (30,32,34) be modulated for realizing
Soft power transmission cooperation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017211232.8 | 2017-07-03 | ||
| DE102017211232.8A DE102017211232A1 (en) | 2017-07-03 | 2017-07-03 | Travel drive and method for driving a traction drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109210186A true CN109210186A (en) | 2019-01-15 |
Family
ID=64661713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810715449.4A Pending CN109210186A (en) | 2017-07-03 | 2018-07-03 | Running driving device and method for manipulating running driving device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109210186A (en) |
| DE (1) | DE102017211232A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372981A (en) * | 2018-12-17 | 2019-02-22 | 潍柴动力股份有限公司 | A kind of vehicle shift control system, driving shift control method and loading machine |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88103240A (en) * | 1987-05-30 | 1988-12-14 | 株式会社岛津制作所 | Stepless speed changes devices |
| CN101223383A (en) * | 2005-07-22 | 2008-07-16 | 株式会社小松制作所 | Device and method for continuously variable transmission of traveling vehicle |
| CN101606010A (en) * | 2007-02-09 | 2009-12-16 | Tcm株式会社 | The clutch control device of hydraulic drive vehicle |
| CN102829178A (en) * | 2012-09-06 | 2012-12-19 | 三一重工股份有限公司 | Transmission system shifting control method of hydraulic motor |
| CN103069198A (en) * | 2011-04-27 | 2013-04-24 | 株式会社小松制作所 | Control device and control method for work vehicle |
| CN103477105A (en) * | 2011-04-12 | 2013-12-25 | 丰田自动车株式会社 | Vehicle drive apparatus control apparatus |
| CN104421424A (en) * | 2013-08-23 | 2015-03-18 | 丹佛斯动力系统有限责任两合公司 | Method for engagement and disengagement |
| CN105074280A (en) * | 2013-04-26 | 2015-11-18 | 株式会社小松制作所 | Wheel loader |
| EP3009716A1 (en) * | 2014-10-16 | 2016-04-20 | Dana Italia S.p.A. | Dual motor drive unit and method of drivingly engaging a first motor of a dual motor drive unit with an output shaft |
| CN106763743A (en) * | 2016-12-26 | 2017-05-31 | 潍柴动力股份有限公司 | A kind of hydrostatic transmissions move gear-shifting control method and system |
| CN206221603U (en) * | 2015-12-08 | 2017-06-06 | 卡特彼勒公司 | Hybrid hydrostatic direct drive transmission device and machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3907633A1 (en) | 1989-03-09 | 1990-09-20 | Orenstein & Koppel Ag | CONTINUOUSLY ADJUSTABLE HYDROSTATIC DRIVE DRIVE |
| DE4034689C2 (en) | 1990-10-31 | 1994-01-05 | Liebherr Werk Bischofshofen | Hydrostatic drive, preferably for an earth moving vehicle, for example wheel loader |
| DE102014219646A1 (en) | 2014-09-29 | 2016-03-31 | Robert Bosch Gmbh | Coupling unit, gear unit with the coupling unit and method for controlling the coupling unit |
| DE102015215013A1 (en) | 2015-08-06 | 2017-02-09 | Robert Bosch Gmbh | Gear arrangement, traction drive with the gear assembly, and method for controlling the gear assembly |
-
2017
- 2017-07-03 DE DE102017211232.8A patent/DE102017211232A1/en active Pending
-
2018
- 2018-07-03 CN CN201810715449.4A patent/CN109210186A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88103240A (en) * | 1987-05-30 | 1988-12-14 | 株式会社岛津制作所 | Stepless speed changes devices |
| CN101223383A (en) * | 2005-07-22 | 2008-07-16 | 株式会社小松制作所 | Device and method for continuously variable transmission of traveling vehicle |
| CN101606010A (en) * | 2007-02-09 | 2009-12-16 | Tcm株式会社 | The clutch control device of hydraulic drive vehicle |
| CN103477105A (en) * | 2011-04-12 | 2013-12-25 | 丰田自动车株式会社 | Vehicle drive apparatus control apparatus |
| CN103069198A (en) * | 2011-04-27 | 2013-04-24 | 株式会社小松制作所 | Control device and control method for work vehicle |
| CN102829178A (en) * | 2012-09-06 | 2012-12-19 | 三一重工股份有限公司 | Transmission system shifting control method of hydraulic motor |
| CN105074280A (en) * | 2013-04-26 | 2015-11-18 | 株式会社小松制作所 | Wheel loader |
| CN104421424A (en) * | 2013-08-23 | 2015-03-18 | 丹佛斯动力系统有限责任两合公司 | Method for engagement and disengagement |
| EP3009716A1 (en) * | 2014-10-16 | 2016-04-20 | Dana Italia S.p.A. | Dual motor drive unit and method of drivingly engaging a first motor of a dual motor drive unit with an output shaft |
| CN206221603U (en) * | 2015-12-08 | 2017-06-06 | 卡特彼勒公司 | Hybrid hydrostatic direct drive transmission device and machine |
| CN106763743A (en) * | 2016-12-26 | 2017-05-31 | 潍柴动力股份有限公司 | A kind of hydrostatic transmissions move gear-shifting control method and system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372981A (en) * | 2018-12-17 | 2019-02-22 | 潍柴动力股份有限公司 | A kind of vehicle shift control system, driving shift control method and loading machine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017211232A1 (en) | 2019-01-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101861482B (en) | Controller for variable transmission | |
| CN101589251B (en) | Hydraulic driver and hydraulic drive vehicle | |
| CN104590265B (en) | A kind of control method and its control system of the fluid drive of electric car two speed transmission | |
| US20040063533A1 (en) | Hybrid electric vehicle auxiliary oil pump | |
| CN102808434B (en) | Method and system for controlling traveling speed of engineering machinery | |
| CN107364440B (en) | Hybrid power car pure electric vehicle starting-up process control method | |
| CN101196233A (en) | Engine speed control for a low power hydromechanical transmission | |
| US5624339A (en) | Method for controlling shift points in a continuously variable transmission | |
| KR100188882B1 (en) | Automatic preheating system for an internal combustion engine and hydraulic pump | |
| CN103890462B (en) | The control gear of infinitely variable speed device for vehicles | |
| SE510739C2 (en) | Ways to calibrate couplings in a transmission | |
| CN105229345A (en) | For the method for the hydraulic system of double-clutch speed changer | |
| KR101755478B1 (en) | Appartus for controlling hybrid vehicle having eop and method thereof | |
| CN110230691A (en) | The shift control method and system of a kind of vehicle, electric clutch | |
| CN104477780B (en) | Device and method for controlling crane operation speed | |
| CN105229346A (en) | For the method for the hydraulic system of double-clutch speed changer | |
| AU713291B2 (en) | Automatic range shift for multi-speed transmission | |
| CN104819222A (en) | Clutch transmission torque control device | |
| CN109210186A (en) | Running driving device and method for manipulating running driving device | |
| US20220307595A1 (en) | Hydraulic circuit architecture with enhanced operation efficency | |
| KR100420625B1 (en) | Gear type automatic transmission unit and method for controlling the same | |
| CN103836181A (en) | Loader static pressure transmission control system | |
| CN203743403U (en) | Loader static-pressure transmission control system | |
| JP2876324B2 (en) | Control device for continuously variable transmission | |
| CN208634354U (en) | A kind of wheeled tractor automatic shifting controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190115 |
|
| WD01 | Invention patent application deemed withdrawn after publication |