EP2284119B1 - Steering control for industrial lift truck - Google Patents
Steering control for industrial lift truck Download PDFInfo
- Publication number
- EP2284119B1 EP2284119B1 EP10163417.8A EP10163417A EP2284119B1 EP 2284119 B1 EP2284119 B1 EP 2284119B1 EP 10163417 A EP10163417 A EP 10163417A EP 2284119 B1 EP2284119 B1 EP 2284119B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steered wheel
- measure
- rotational direction
- indication
- steering angle
- 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.)
- Not-in-force
Links
- 230000008859 change Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 238000004458 analytical method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000006870 function Effects 0.000 description 5
- 238000012790 confirmation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000004397 blinking Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07568—Steering arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/0755—Position control; Position detectors
Description
- The invention relates to an industrial truck and a method for controlling the steered wheel of an industrial truck, and a computer program which can cause a control unit to control the steered wheel of an industrial truck.
- Freight is often transported and stored on pallets. After a truck operator has deposited a pallet in a location, by lowering the fork of the truck so that the pallet rests on the floor, the operator drives away from the pallet so that the forks are pulled out of the pallet. It is important in this operation that the truck moves straight away from the pallet, since the forks would otherwise collide with the pallet as they are being extracted. The operator must therefore drive straight back after leaving the pallet, and this means that the steered wheel of the truck must be in straight alignment.
- In pillar trucks there is a physical and visible connection between the steered wheel and the pillar. There is thus no problem for the operator to set the steered wheel in straight orientation.
- Certain trucks have an indicator, for example in the form of a compass rose, which shows the angle of the steered wheels(s). The indicator is however relatively inexact and the operator must still manually adjust or readjust the steered wheel(s) when the truck moves.
- Document
DE10204742 A1 describes a truck which is controlled with the aid of a joystick. When the joystick is released it returns to a neutral position where the truck is braked to a stand still and its steering can be centered (paragraphs 0018-0022). -
JP 2001 239949 A - One purpose of the present invention is to increase productivity and reduce waste when operating a fork lift truck.
- The purpose is achieved by an industrial truck according to claim 1 with a control unit for controlling the steered wheel of the truck where the truck is of the steer-by-wire type. The steered wheel has a first and a second rotational direction, which correspond to driving forward and driving backwards. The control unit is adapted to receive an indication from the operator of the industrial truck. The control unit is further adapted to analyse said indication and thereafter select one of at least two measures, where the first measure is to change the selected direction of rotation, and where the second measure is to change the selected direction of rotation and, in connection therewith to make sure that the steered wheel has been sent at a predetermined steering angle. The control unit is further adapted to generate and send a control instruction indication the selected measure.
- The control unit can control the rotation of direction of the steered wheel via a drive mean which drives the steered wheel. Alternatively, the control unit can control the rotation of direction of the steered wheel via drive means which drive the trucks other wheels.
- Said control unit makes it possible for the truck operator to provide an indication which leads to the first measure; changing the direction between driving forward and driving backwards. Alternatively the truck operator can provide an indication which leads to the second measure; changing the direction between driving forward and driving backwards and at the same time automatically confirming the setting of the steering angle of the steered wheel. The operator can thus through giving a single indication switch between driving forward and driving backwards and determine the direction (the steering angle of the steered wheel). The operator thus not need to manually, in a separate step, adjust the steering angle of the steered wheel i.e. with the aid of a separate steering mechanism such as a steering wheel or a joystick. Furthermore the control unit according to the invention makes sure that the steered wheel is set exactly as the predetermined angle, which can be difficult and/or time consuming for the operator to do.
- That the control unit guarantees the steering angle of the steered wheel means that the control unit checks the steering angle of the steered wheel and when the steered wheel is not orientated to the predetermined steering angle it will affect an adjustment of the steering angle of the steered wheel.
- The predetermined steering angle can involve driving straight forward or straight backwards. This is for example advantageously when the truck operator wishes to leave the load in confined spaces, for example on shells in so called placement position. The operator here leaves the load carefully and makes small adjustments with the steering wheel to see to it that the load is correctly placed. When the operator leaves the load he drives in the opposite direction, i.e. away from the load. Due to the fact that the operator has made adjustments prior to leaving the load, the truck may often start off slantingly at an angle, which may require a new compensation from the operator. This process can be time consuming and can even lead to the truck colliding with the merchandise or cargo. This problems are avoided by the control device according to the invention where the operator through a single indication can reverse the direction from driving forward to driving backwards in relation to the load and at the same time assure that the steered wheel has been set at a steering angle which moves the truck straight backwards.
- The indication from the driver can be an indication which can affect the rotational direction of the steered wheel. An advantage of this is that the driver, when selecting the selection of drive, in this case away from the load, can also simply and intuitively affect the steering angle of the truck. A typical case has been described above, where the operator wishes to drive away from a deposited load. Since it is often desirable to adjust the steering angle of the steered wheel in connection with changing the rotational direction of the steered wheel, it is advantageous to arrange the control unit so that said indication is an indication which can affect the rotational direction of the steered wheel.
- The control unit can be adapted when analysing the indication, to compare the latest rotational direction of the steered wheel with the indicated rotational direction. The latest rotation direction means the rotational direction which the steered wheel has when the indication is received by the control unit, or the rotational direction which the steered wheel last had. Thus the control unit can be adapted to change the selected rotational direction if the latest rotational direction of the steered wheel does not agree with the indication. The control unit can comprise a processor and a memory in which inter alia the latest rotational direction of the steered wheel is stored.
- The industrial truck comprises further input means for selecting the driving direction. The input means are coupled to the control unit and with the aid of which the operator can provide said indication. The control unit is arranged so that actuation of a switch of the input means once leads to the first measure and actuation of the input means once and then rapidly repeating the actuation leads to the second measure. This has the advantage that the operator can use a single input device to achieve either of the two measures.
- For example, the first type of actuation can be a temporary actuation of a resilient electric switch. The second sort of actuation consists of the first type of actuation plus an additional actuation. The second type of actuation can for example consist of two temporary actuations of the switch in rapid sequence. In other words, the first type of actuation is a single click, and the second type of actuation is a double click. The control unit can be adapted to determine when the operator has made a double click actuation by measuring the time between the actuations of the switch.
- The input device can consist of a push button. In this case a single push (one click) thereof means that the control unit will reverse the rotational direction of the steered wheel. Two pushes of the button in rapid succession (double clicking) involves reversing the rotational direction of the steered wheel and assuring the setting of the steering angle of the steered wheel. Preferably the input device comprises two push buttons where a single click of the first push button provides an indication which, after analysis by the control unit, leaves to the measure "drive forward" and the second push button when single clicked leaves to "drive backwards". Double clicking of the push buttons results for example in "drive straight forward" and "drive straight backwards".
- Many industrial trucks are equipped with a drive direction selector in the form of a cradle for the operators thumb. The cradle functions has a resilient rocker switch. By moving the cradle in one direction or the other, the operator can select "driving forward" or "driving backwards". Such a cradle is coupled to the control unit and functions as an input device. The operator can, in accordance with the invention, single click the cradle in one direction to, via the control unit, achieve driving in this direction (forward/backwards), and can double click the cradle in one direction to achieve straight driving in this direction (forward/backwards).
- Should the latest rotational direction of the steered wheel agree with the rotational direction corresponding to an indication stemming from the first type of actuation, no measure is expected from the control unit. If however the indication stems from the other type of actuation, the control unit can be adapted to assure that the steered wheel is set at a predetermined steering angle. This corresponds for example to the operator driving or having driven forward and double clicking
- on the input device in the forward direction, where upon the control unit sets the steered wheel so that the truck will drive straight forward. Thus the control unit can be adapted for a third measure, which is to assure that the steered wheel is set at a predetermined steering angle.
- The control unit can be adapted to only provide the third measure when the truck is standing still, or when the truck has a low speed. The low speed is here meant to be for example at most 1 km/h. This will avoid the risk of the truck unintentionally changing the direction during driving as a result of unintentional operation of the input device. For this purpose, the control unit can monitor the speed of the truck, for example by monitoring the rpm of the steered wheel.
- The control unit can further more be adapted to provide the operator with a confirmation after the rotational direction of the steered wheel has been changed and/or after the steered wheel has been set at the predetermined steering angle. The confirmation can be in the form of a sound or light signal. For example, the control unit, for this purpose, can be coupled to an indicator device and/or a sound generating means. The indicator device can comprise two driving direction indicators, for example in the form of lamps or indicators on a display. The driving direction indicators can show the current set direction of driving and blink during the time when the control device is setting the steering angle. After the steering angle has been set, the driving direction indicator will stop blinking and an auditory signal can be given. An auditory signal can also be intermittently generated during the time when the steering angle is being adjusted. Furthermore or as an alternative, the control unit can be connected to vibratory means, which vibrates the input device as the steering angle is being adjusted, or vibrates the input device for a short period when the setting of the steering angle has been completed.
- The truck comprises advantageously an input device for selecting the direction of driving, with the aid of which the operator can provide the indication. Furthermore, the truck can comprise driving direction indicators, sound generation means and/or vibration means for giving of the above mentioned confirmation. The invention is particularly suited to a reach truck.
- The purpose can also be achieved by a method for controlling the steered wheel of a truck. The method comprises the steps of registering an indication, analysing said indication and selecting of at least two measures, where a first measure is changing the selected rotational direction and where the second measure is to change the selected rotational direction and in connection therewith to assure that the steered wheel has been set at a predetermined steering angle. Furthermore, the method comprises the steps of generating and sending a control instruction which indicates the selected measure and carrying out of said measure period.
- Finally, the purpose can be achieved by a computer readable medium comprising the program recorded thereon, which program comprises computer readable code which when it is run on a processor is disposed to cause a control unit for controlling the steered wheel of a truck to perform the process comprising the steps of registering an indication from the truck operator, to analyse said indication and select one of at least two measures, where a first measure is to change the selected rotational direction and where the second measure is to change the selected rotational direction and in connection therewith to assure that the steered wheel has been set at predetermined steering angle. Furthermore the process comprises generating and sending a control instruction which indicates the selected measured period.
- An example of the invention will be illustrated in the accompanying drawings where
- Figure 1
- illustrates a reach truck from below,
- Figure 2
- shows schematically a block diagram of a control unit and sensors connected thereto, and
- Figure 3
- illustrates a method of controlling the steered wheel of the truck.
- The
reach truck 10 shown schematically inFig. 1 comprises a steeredwheel 20, which in this case also drives the truck, and therefore the steered wheel will in the following be referred to as adrive wheel 20, and twosupport leg wheels 30 the truck is also provided with input means in the form of a drivingdirection selector 40. The drivingdirection selector 40 is constructed in a normal matter as a cradle in which the thumb or finger of the operator can rest. - The
truck 10 is of the steer-by-wire type, which generally means that there is no mechanical coupling the steered wheel and a steering mean such as a steering wheel. The control of the steered wheel is instead achieved with the aid of electronics, which are actuated by the operation of the steering wheel and in turn actuate the steered wheel, for example hydraulically or electrically. - An
angle sensor 50 is arranged to register thesteering angle 60 of the drive wheel, which can be set by asteering motor 70 which can turn thedrive wheel 20 about an axes which during the use extends vertically through the wheel. Adrive motor 80 drives thedrive wheel 20 and a first and second rotational direction about an axes which extends during use horisontally through the wheel. - The
truck 10 also comprises acontrol unit 90, to which the drivingdirection selector 40, theangle sensor 50, the steering 70 motor and thedrive motor 80 are connected, as it shows schematically inFig. 2 . Thecontrol unit 90, the drivingdirection selector 40, theangle sensor 50, thesteering motor 70 and thedrive motor 80 can for example communicate with each other via a controller area network (CAN). - The
control unit 90 and its function will now be described with reference to the method which is described inFig. 3 and the block diagram inFig. 2 . - A driving direction indication 100 (forward/backwards, straight forward/ backwards) generated by the truck operator with the aid of the driving
director selector 40 is supplied to thecontrol unit 90. The indication is registered in afirst step 110. In thenext step 120, theindication 100 is analysed and one of at least two measures is selected. - The
first measure 130a is to change the direction of driving (forward/ backwards). This occurs if the drivingdirection indication 100 does not agree with the current or latest driving direction of thetruck 10. During theanalysis 120 the current or latest driving direction of the truck is thus compared to the driving direction which corresponds to the drivingdirection indication 100. If the drivingdirection indication 100 agrees with the current or latest driving direction, there will be no measure taken. According to the present example, a single click on thecradle 10 leaves to thefirst measure 130a. - The second
possible measure 130b is to reverse the driving direction (forward/ backwards) and to set thedrive wheel 20 parallel to the supportingleg wheels 30. The second measure corresponds thus to the first measure plus an additional measure. According to the present example, a double click on the drivingdirection selector 40 can lead to thesecond measure 130b. An example is that the driver has transported on the fork (not shown of the truck) running parallell to and above the supportingleg wheels 30, a load on a pallet to a predetermined location. The operator, before the fork has been lowered has been forced to steer the truck laterally to correctly adjust the position of the pallet. When the driver thereafter wishes to change the driving direction and at the same time set the drive wheel at an angle for driving in a direction straight away from the pallet, so that the forks of the truck can be extracted from the pallet without touching the pallet, he double clicks on the drivingdirection selector 40 in the direction away from the pallet. Thecontrol unit 10 then selects thesecond measure 130b, and the direction of driving can be changed and thedrive wheel 20 will be set parallel to the supportingleg wheels 30. - In the subsequent step 140 a
control instruction control instruction control unit 10 to the unit in question, in this case to thesteering motor 70 and thedrive motor 80. - The method comprises a
last step 160 where the selected measure is carried out. In the example above, this corresponds to thesteering motor 70 turning thedrive wheel 20 to an angle which involves driving in the horisontal direction of the forks (the angle illustrated inFig. 1 ) and preparing thedrive motor 80 upon acceleration by the operator to drive the drive wheel in a direction which involves driving away from the load (the direction illustrated by the left hand arrow inFig. 1 ). Thus the drive wheel can be set parallel to the supportingleg wheels 30 before thetruck 10 moves forward or backwards. - Should the driver double click on the driving
direction selector 40 in the current driving direction (forward/backwards), thecontrol unit 90 can be adapted to select the third measure which means setting the drive wheel parallel to the supporting leg wheels. In connection with the minor adjustments which the operator makes when placing a load, the operator can, in addition to adjusting thesteering angle 60 can also alternately back or drive forward. When the load has been placed correctly, it is practical for the operator to simply be able to set the drive wheel straight so that the forks can pass out from under the pallet regardless the latest rotational direction of the drive wheel. In other word, when the driver double clicks on the drivingdirection selector 40 in a direction away from the load, thecontrol unit 10 can be adapted to assure that thesteering angle 60 of thedrive wheel 20 is for driving straight back from the load, regardless of the latest/current rotational direction of thedrive wheel 20. This function can be deactivated during driving. - The
control unit 90 can, with the aid of theangle sensor 50, monitor thesteering angle 60 of thedrive wheel 20. Theangle sensor 50 can be coupled to thedrive wheel 20 or to thesteering motor 70. When thecontrol unit 90 is to make sure that thedrive wheel 20 has been set at a desiredsteering angle 60, thecontrol unit 90 can register in a first step thecurrent steering angle 60, in a second step adjust thesteering angle 60 with the aid of thesteering motor 70 by sending thecorresponding control instruction 150b to thesteering motor 70, and thesteering angle 60 can be continuously monitored by theangle sensor 50. In a last step, when theangle sensor 50 signals the desiredsteering angle 60, thecontrol unit 90 can stop the movement of thesteering motor 70. If the control unit, in a first step has already discovered that the drive wheel is at a desired angle, the setting process is terminated. - The
control unit 90 can also the control the rotational direction of thedrive wheel 20. This takes place by giving the drive motor 80 acontrol instruction 150a from thecontrol unit 90. Saidcontrol instruction 150a contains information concerning which direction thedrive wheel 20 is to rotate in, and the desire of the rotational speed. - For the purpose of assuring that the
truck 10 moves in the desired direction, thecontrol instruction 150a can be sent to thedrive motor 80 first after thecontrol unit 90 has made sure that thedrive wheel 20 has been set at a desiredsteering angle 60. - According to the above described example, the respective units communicate via CAN. However, the
steering motor 70 and thedrive motor 80 can be controlled directly from thecontrol unit 90. Thecontrol instruction drive motors direction selector 40 and theangle sensor 50 can be connected in a conventional manner directly electrically to the input of thecontrol unit 90. - The
control unit 90 comprises a memory and a processor which can execute a computer program, whereby thecontrol unit 90 can be caused to perform the above described process.
Claims (6)
- Industrial truck comprising
a control unit (90) for controlling the steered wheel (20) of the industrial truck (10), said steered wheel (20) having a first and a second rotational direction, said control unit (90) being adapted to receive an indication (100) from the operator of the industrial truck for control of the rotational direction of the steered wheel and a steering angle of the steered wheel (20) and to control the rotational direction and the steering angle of the steered wheel (20) based on the received indication, where the truck is of the steer-by-wire type, characterized in that the control unit (90) is adapted to
analyse one single said indication (100) for control of the rotational direction of the steered wheel (20) and for control of the steered wheel (20) to a predetermined steering angle,
select one of at least two measures based on the analysed single indication,• where a first measure (130a) is to change the selected rotational direction, and• where a second measure (130b) is to change the selected rotational direction and in connection therewith to make sure that the steered wheel (20) has been set at the predetermined steering angle (60); andgenerate and send a control instruction (150a, 150b) which indicates the selected measure,
and in that the industrial truck further comprises input means (40) for selecting the driving direction, said input means being coupled to the control unit (90) and with the aid of which the operator can provide said indication (100), wherein the control unit is arranged so that actuation of a switch of the input means once leads to the first measure (130a) and actuation of the input means once and then rapidly repeating the actuation leads to the second measure (130b). - Industrial truck according to claim 1, wherein said steering angle (60) involves driving straight forward or straight backwards.
- Industrial truck according to claim 2, wherein the control unit (90) is adapted, upon analysis of the indication (100), to compare the latest rotational direction of the steered wheel (20) with a rotational direction which the indication involves.
- Industrial truck according to one of the proceeding claims 1-3, wherein• a third measure which the control unit (90) is adapted to select is to make sure that the steered wheel (20) is set at a predetermined steering angle (60).
- Method for controlling the steered wheel (20) of an industrial truck, comprising these steps of- registering (110) an indication (100) from input means for control of a rotational direction of the steered wheel and a steering angle of the steered wheel,- analysing (120) one single said indication (100) for control of a rotational direction of the steered wheel and a steering angle of the steered wheel,- selecting of one of at least two measures based on the analysed single indication,• where a first measure (130a) is to change the selected rotational direction, and• where a second measure (130b) is to change the selected rotational direction and in connection therewith to make sure that the steered wheel (20) has been set at a predetermined steering angle (60), and• wherein actuation of a switch on the input means once leads to the first measure (130a) and actuation of the switch on the input means once and then rapidly repeating the actuation leads to the second measure (130b)- generating and sending (140) a control instruction (150a, 150b) which indicates the selected measure (130a, 130b), and- carrying out (160) said selected measure.
- Computer readable medium comprising a program stored thereon, which program comprises computer readable code which, when it is run in a processor, is disposed to cause a control unit (90) for controlling the steered wheel (20) of an industrial truck to perform the process comprising the steps of- registering (110) an indication (100) from input means for control of a rotational direction of the steered wheel and a steering angle of the steered wheel from the operator of the industrial truck,- analysing (120) one single said indication (100) for control of a rotational direction of the steered wheel and a steering angle of the steered wheel,- selecting of one of at least two measures based on the analysed single indication,
where a first measure (130a) is to change the selected rotational direction, and
where a second measure (130b) is to change the selected rotational direction and in connection therewith to make sure that the steered wheel (20) has been set at a predetermined steering angle (60), and
where actuation of a switch on the input means once leads to the first measure (130a) and actuation of the switch on the input means once and then rapidly repeating the actuation leads to the second measure (130b)- generating and sending (140) a control instruction (150a, 150b) which indicates the selected measure (130a, 130b).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0950396A SE0950396A1 (en) | 2009-06-02 | 2009-06-02 | Control unit, method and computer program for controlling a truck |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2284119A2 EP2284119A2 (en) | 2011-02-16 |
EP2284119A3 EP2284119A3 (en) | 2013-08-14 |
EP2284119B1 true EP2284119B1 (en) | 2017-10-04 |
Family
ID=43243855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10163417.8A Not-in-force EP2284119B1 (en) | 2009-06-02 | 2010-05-20 | Steering control for industrial lift truck |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2284119B1 (en) |
SE (1) | SE0950396A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022205373A1 (en) | 2022-05-30 | 2023-12-14 | Zf Friedrichshafen Ag | Vehicle with steering unit and method for operating a vehicle |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2008961A1 (en) * | 2007-06-29 | 2008-12-31 | BT Products AB | Control unit, method and computer program product for controlling a lift mechanism |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001239949A (en) * | 2000-02-29 | 2001-09-04 | Furukawa Co Ltd | Maneuvering control device |
DE10204742B4 (en) | 2002-01-19 | 2014-05-28 | Linde Material Handling Gmbh | Truck with a joystick to control the traction drive, the steering system and the brake system |
-
2009
- 2009-06-02 SE SE0950396A patent/SE0950396A1/en not_active IP Right Cessation
-
2010
- 2010-05-20 EP EP10163417.8A patent/EP2284119B1/en not_active Not-in-force
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2008961A1 (en) * | 2007-06-29 | 2008-12-31 | BT Products AB | Control unit, method and computer program product for controlling a lift mechanism |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022205373A1 (en) | 2022-05-30 | 2023-12-14 | Zf Friedrichshafen Ag | Vehicle with steering unit and method for operating a vehicle |
Also Published As
Publication number | Publication date |
---|---|
SE533418C2 (en) | 2010-09-21 |
EP2284119A3 (en) | 2013-08-14 |
SE0950396A1 (en) | 2010-09-21 |
EP2284119A2 (en) | 2011-02-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105683021B (en) | Method for a driver assistance system of a vehicle | |
EP2902877B1 (en) | Driver communication interface in an at least partly autonomous drive system | |
US9217240B2 (en) | Work vehicle, work vehicle display device, method of controlling work vehicle display device, backhoe loader, backhoe loader display device, and method of controlling backhoe loader display device | |
US8797154B2 (en) | In-vehicle display apparatus | |
US10310605B2 (en) | Haptic feedback for steering system controls | |
EP3340002B1 (en) | Automatic travelling work vehicle | |
JP5763460B2 (en) | Information display device for work vehicles | |
CN104972916B (en) | The method that electronic parking brake system is applied in vehicle propulsion system | |
EP2698304B1 (en) | System and method to select a steer mode | |
JP2009255609A (en) | Remote operation apparatus | |
CN107848567B (en) | Power steering adjustment device | |
CN110979329A (en) | Device and method for providing kinesthetic cues in a vehicle equipped with driving automation | |
SE1450785A1 (en) | Method and a mobile electronic device for controlling a vehicle | |
CN105035093B (en) | Driver's interactive interface at least partly in autonomous driving system | |
EP2284119B1 (en) | Steering control for industrial lift truck | |
CN105270405B (en) | The method for controlling the speed changer parking system of vehicle | |
WO2018105309A1 (en) | Shift selector device | |
EP1824700B1 (en) | Method and computer program at a vehicle for adjusting the distance to a vehicle ahead | |
JP5895399B2 (en) | Parking assistance device | |
JP5914298B2 (en) | Vehicle control device | |
JP5109198B2 (en) | Operation switching device for data communication system for industrial vehicle | |
JP2016190552A (en) | Work vehicle | |
JP2003306160A (en) | Cargo handling vehicle | |
KR101417384B1 (en) | Apparatus and method for guiding of multi-function switch | |
EP3981732A1 (en) | Industrial truck with improved display function |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME RS |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME RS |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: B62D 5/04 20060101ALI20130705BHEP Ipc: B66F 9/075 20060101AFI20130705BHEP |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
17P | Request for examination filed |
Effective date: 20140211 |
|
17Q | First examination report despatched |
Effective date: 20140417 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: TOYOTA MATERIAL HANDLING MANUCTURING SWEDEN AB |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20170512 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 933814 Country of ref document: AT Kind code of ref document: T Effective date: 20171015 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602010045690 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20171004 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 933814 Country of ref document: AT Kind code of ref document: T Effective date: 20171004 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180104 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180104 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180204 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180105 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602010045690 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 |
|
26N | No opposition filed |
Effective date: 20180705 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20180531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180531 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180520 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180531 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180520 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180520 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20100520 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 Ref country code: MK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20171004 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20171004 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20220524 Year of fee payment: 13 Ref country code: DE Payment date: 20220527 Year of fee payment: 13 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 602010045690 Country of ref document: DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20230520 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231201 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20230520 |