NL2036388B1 - Lifting device and lifting system for lifting a vehicle, and method therefor - Google Patents

Abstract

The present invention relates to lifting device or lifting system for lifting of vehicle and associated method. The lifting device comprises: - a frame with a moveable carrier that is configured for carrying the vehicle; - a drive which acts on the carrier and is configured for raising and/or lowering the carrier relative to the frame; - a controller configured for controlling the vehicle lifting, wherein the controller comprises an activator configured for searching and/or coupling to the lifting device, wherein the activator comprises a RFID-system; and - a wireless communication coupling configured for coupling the lifting device to a further lifting device to enable jointly lifting the vehicle.

Description

LIFTING DEVICE AND LIFTING SYSTEM FOR LIFTING A VEHICLE, AND METHOD

THEREFOR

The invention relates to a lifting device that is used for lifting passenger cars, trucks, buses, or other vehicles. Such lifting device may relate to (mobile) lifting column, lifting column of the two- post lift type with pivoting support arms, the four-post lift type with runways, in-ground lifts et cetera. Such lifting device is suitable for lifting the vehicle alone or in combination with other lifting devices, for example in a lifting system comprising a number of mobile lifting columns.

Conventional lifting devices comprise a frame with a moveable carrier that is capable of carrying the vehicle, and a drive that 1s capable of raising and/or lowering the carrier relative to frame. Such lifting devices are operated with the use of a controller that is capable of controlling the vehicle lifting.

Operating a conventional lifting device requires a user to operate the lifting device using a controller or control device that is directly and physically coupled to the lifting device involving a user interface and/or buttons, or involves a wired or wireless remote control that is associated with the lifting device. In practice, the setup of such lifting device that is controlled by the user requires a specific start-up procedure that is relatively complex and reduces flexibility for a user.

An object of the invention is to obviate or at least reduce one or more of the above-mentioned problems.

This object is achieved with a lifting device for lifting a vehicle according to the present invention, wherein the lifting device comprises: - a frame with a moveable carrier that is configured for carrying the vehicle; - adrive which acts on the carrier and is configured for raising and/or lowering the carrier relative to the frame; - a controller configured for controlling the vehicle lifting, wherein the controller comprises an activator configured for searching and/or coupling to the lifting device, wherein the activator comprises a RFID-system; and - a wireless communication coupling configured for coupling the lifting device to a further lifting device to enable jointly lifting the vehicle.

The lifting device according to the invention specifically relates to lifting columns, mobile lifting columns, lifting columns of the two-post lift type with pivoting support arms, the four-posts lift type with runways, in-ground lifts, for example. In addition, the lifting device may be used in a lifting system, for example a lifting system comprising a number of lifting devices such as mobile lifting columns. In the context of the present invention the carrier relates to the moving parts of the lifting device when lifting the vehicle. This carrier is driven by a drive, such as a hydraulic drive, pneumatic drive and/or electric drive.

A controller is provided to control the vehicle lifting with the lifting device of the present invention, optionally with the lifting device being included in a group of lifting devices that jointly lift the vehicle, for example in case of mobile lifting columns. Such controller can be operated by a user, also referred to as operator, at the desired location. Such controller may further relate to a so- called central controller that is capable of controlling several lifting devices. In a presently preferred embodiment the controller preferably is or comprises a remote control that may relate to a dedicated remote control or an existing apparatus such as a tablet or mobile phone that is provided with the relevant software. Preferably, such (central) controller, such as a remote control system with a remote control, comprises a wireless transmitter and receiver to enable a wireless control of the lifting device by a user. This further enhances the flexibility for a user when lifting a vehicle. Optionally, the remote control is switched off when not being used for a pre-determined time period, for example 2 minutes or any other suitable time period. This functionality is also referred to as a time-out function.

Also optionally, the transmission power of the remote control can be designed or controlled to limit the distance of operation between the remote control and the lifting device. This prevents accidental instructing the lifting device to move and, thereby, improves the overall safety of working with the lifting device.

According to the invention the controller of the lifting device comprises a wireless communication coupling. This wireless communication coupling is configured for coupling the lifting device to a further lifting device to enable jointly lifting the vehicle. The one or more lifting devices may relate to different types of lifting devices. such as lifting columns, mobile lifting columns, lifting columns of the two-post lift type with pivoting support arms, the four-posts lift type with runways, and in-ground lifts. Providing the wireless communication coupling enables a joint control of the first and further lifting device when lifting a vehicle, for example. This can be used in different situations, including lifting trains or road trams. or articulated/accordeon buses with two or more four-post lifts or sky lifts or other lifting devices, for example. By providing the wireless communication coupling it is no longer required to connect the lifting devices with a communication cable. This further improves the overall flexibility when working with the lifting device and lifting system according to the present invention. In addition, the wireless communication coupling obviates the safety hazard of cables across the workshop floor. In a presently preferred embodiment the remote control uses a RS485 port with a transmitter/receiver.

Furthermore, in a presently preferred embodiment the remote control is capable of controlling one of the lifting devices alone or jointly with the other lifting devices. This provides a flexible and effective control of a lifting operation. It will be understood that other communication possibilities can also be envisaged in according to the present invention.

The lifting device according to the present invention further comprises an activator that is configured for searching and/or coupling the controller to the lifting device. This activator is used to find and/or couple the controller to the lifting device. This activator comprises an RFID-system for the searching and/or coupling of the controller to the lifting device. Such radio-frequency identification (RFID) system makes use of electromagnetic signals and comprises an RFID-reader that is preferably capable of triggering with a pulse on an RFID-tag. Such tag transmits relevant data back to the RFID-reader such as an identification number. Such RFID-tag typically comprises a chip for processing information and an antenna for receiving and/or transmitting data that are preferably provided on a substrate. These RFID-tags can be passive or active involving a battery.

In the presently preferred embodiments of the invention an active RFID-tag is used to improve data transmission. The RFID-reader waits for receipt of a signal from an RFID-tag or may (periodically) transmit a signal when switching an RFID-tag. The RFID-system preferably operates in the frequency band between 120 kHz and 10 GHz. although it is presently preferred to use the ultra-high frequency (UHF) bands. In the context of the present invention it is noted that in certain embodiments of the invention the RFID-system may also operate on a Terahertz frequency to which is also referred as a TFID-system.

The RFID-system enables a user to position the RFID-reader and RFID-tag at a certain distance as the tag can be read at a distance from the reader. This improves flexibility for a user when using the lifting device of the present invention as no physical contact between the tag and the reader is required. Furthermore, there is no specific need to present the tag to the lifting device and/or enter access or validation codes or passwords.

The RFID-system is particularly useful for searching and/or coupling with a lifting device, optionally with two or more different lifting devices, and provide an automatic identification.

Optionally, a user must provide an individual identification to the RFID-system and/or control of the lifting device to enable its use. Thereafter, the RFID-system enables coupling to one or more lifting devices. It is noted that in operation the lifting device can make use of wireless communication that optionally uses Wi-Fi, Bluetooth, Zigbee or other suitable communication protocol.

In a presently preferred embodiment the operation from a controller/display on the lifting device itself is blocked after coupling the controller, such as the remote control. This reduces the risk of safety conflicts. Preferably. the (local) controller on the lifting device itself is unlocked after signing out or logging off the (remote) control. Optionally, when controlling the lifting device with a remote control a signal is generated by or on the lifting device itself for actually moving the lifting device. Such signal may involve a sound and/or light signal.

Preferably, the RFID-system is capable of coupling with different tvpes of lifting devices. This provides the advantage of using the RFID-system and the (central) controller in cooperation with different types of lifting devices such as mobile lifting column, in-ground lifts, or other suitable lifting devices. This further enables a user to rely on a single (remote) control for operation of several lifting devices. Furthermore, the (remote) control can be directly linked to a specific user.

This further increases the flexibility when lifting a vehicle.

In a preferred embodiment of the invention the remote control comprises a wireless charger.

Providing the remote control with a wireless charger enables wirelessly charging the battery of the remote control, thereby guaranteeing the operation of the remote control and (parts of) the

RFID-system.

As a further advantage this renders it possible to optionally provide a gastight remote control in a presently preferred embodiment of the invention. Providing such an optional gastight remote control improves the overall safety when working with the lifting device. In particular, such remote control provides additional safety in the presence of fuel gases and/or exhaust/compression gases.

In addition to the safety improvement this also improves the operational flexibility.

In a presently preferred embodiment of the present invention the lifting device is provided with an RFID-reader and the (remote) control is provided with an RFID-tag. It will be understood that in an alternative embodiment the (remote) control is provided with the RFID-reader and the lifting device provided with an RFID-tag. However, in a presently preferred embodiment a remote control is provided with the RFID-tag and the lifting device is provided with the RFID-reader. This provides maximum flexibility for a user to couple the remote control with any type of lifting device, Depending on the user’s priorities or needs.

In a presently preferred embodiment of the invention the (remote) control can be deactivated. with a de-activator.

By providing a de-activator the controller is deactivated for use with a specific lifting device.

For example, the (remote) control can be deactivated in case of an unsafe situation. This increases the overall safety when lifting a vehicle.

The de-activator may apply an inactive time period, such that after this specific time period, wherein the controller is inactive, also referred to as a time-out or time-out function, the (remote) control is deactivated. For a further operation with this controlling a new coupling and/or unlocking is required. This improves safety when working with the lifting device of the present invention. Preferably, further operation requires re-coupling the remote control. For safety reasons, in a presently preferred embodiment, when being de-activated, the lifting device cannot be controlled from any other means, including a controller display on the lifting device. If desired, this would preferably involve unlocking with the remote control and signing off with the remote control. Next, the display can be activated, for example. An inactive time period can be a period of 1to 2 minutes, for example. It will be understood that other time intervals can also be envisaged in accordance with the present invention.

In addition, or as an alternative, the activator may also apply an inactive distance. In such embodiment, when the control is positioned at a distance from the lifting device larger than the inactive distance, the de-activator stops the coupling of the controller with the lifting device. For further operation a new coupling and/or unlocking is required. An inactive distance can be 3 5 meters, 5 meters, 10 meters or any other suitable distance.

In a presently preferred embodiment the RFID-system is used to determine the actual distance between the controller and the lifting device. This provides an effective means to compare the actual distance with the inactive distance and to determine the operation of the controller in association with the lifting device.

As an alternative or in addition to the actual distance measurement with the RFID-system the transmitting power of the controller can be adjusted to send a maximum operational distance of 5 m to 10 m, for example. This guarantees that a user accidentally operates the lifting device when being on a different location and/or at a large distance from the lifting device.

Preferably, the de-activator is adjustable. For example, an adjustment is possible of the inactive time period and/or the inactive distance and/or the frequency of a check by the de-activator. This enables adjustment of the de-activator and the lifting device in view of the specific circumstances, such as the presence of other lifting devices in the near vicinity of the controlled lifting device.

In a presently preferred embodiment of the invention the controller comprises a signaling device.

By providing a signaling device the (immediate) vicinity of the lifting device can be given a warning signal when the controller starts operation and/or starts an actual lifting or lowering of a vehicle. This improves safety when working with the lifting device. The signaling device may provide an acoustic and/or other suitable signal. For example, the signal may be an indicative signal of 1 to 2 seconds indicating movement of the carrier. Alternatively, or in addition thereto, a signal can be generated from the lifting device itself, optionally involving a light signal. Preferably, no acoustic or other signal is generated within a time interval after the last signal. This enables continuous operation of the lifting device. Such time interval is 10 seconds, for example.

Alternatively, or in combination with the aforementioned signaling device, a remote control optionally comprises a remote control signaling device, preferably comprising an RGB-led that signals the actual function of the system. For example, continuously green indicates that the system is connected and active, while continuously red indicates that the connection failed and/or the system is disconnected. Blinking may, depending on the actual colour, may indicate that the system is connecting, a function is not available, or a time-out functionality is triggered such that the system will be disconnected shortly. Other visual and/or acoustic signals can also be used, for example for indicating the desired recharge of the battery of the (remote) control.

In a presently preferred embodiment of the invention the (remote) controller transmits its data to the lifting device. In case multiple lifting devices such as mobile lifting columns are coupled in a set or lifting system the remote control preferably transmits its data to a specific column, to which can also be referred to as master column, that uses the data. The receiving lifting device uses the data to control the lifting operation. For safety reasons the lifting device communicates periodically with the remote control to continue this specific configuration of the lifting device with remote control. This time period is one signal per second, for example. In case multiple lifting devices are coupled together, the receiving lifting device that is coupled to the (remote) control preferably transmits the data to the other devices. This is specifically relevant for mobile lifting columns and in-ground lifting devices. In such cases a selection of lifting devices is optionally performed with one of these lifting devices and/or with the use of the remote control.

In a presently preferred embodiment of the invention the controller further comprises a lifting device selector.

Such selection of lifting devices for a joint lifting operation by a controller, such as a remote control, provides additional flexibility to a user. In such embodiment, the user may select the different lifting devices, such as multiple mobile lifting columns, multiple sky lifts, etc. for performing a (joint) lifting operation. This functionality is preferably applied in combination with a signaling device and the safety measures involving an inactive time period and/or inactive distance.

In a presently preferred embodiment of the invention a magnetic coupling is provided to the controller. This enables a physical coupling of the controller, such as the remote control, to the frame of the lifting device.

Also preferably, the controller comprises a lamp. Providing the controller, such as the remote control, with a lamp provides additional flexibility for using the remote control that also improves the overall safety when working with the lifting device, for example in case of unexpected power shut off. This lamp can be provided in several manners including a torch-like functionality as is known from mobile phones.

Preferably, the (remote) control comprises a display. By providing a display, a user/operator of the lifting device is provided with an overview of the actual status of the lifting device, more specifically in relation to the actual status of the (remote) control. The display can be a touch screen, or any other suitable display that is capable of visualising (parts of) the status of the lifting device and/or the (remote) control.

In a further preferred embodiment of the invention the lifting device comprises a safety surround system that is configured to provide a view around the vehicle to be lifted.

Providing a safety surround system enables providing an operator with a view or views of the surroundings of the vehicle to be lifted, and more preferably a 360-view thereof. This improves the overall safety when lifting a vehicle, specifically when lifting large vehicles such as buses, trucks and wagons. In preferred embodiments safety surround system comprises one or more cameras and/or mirrors. In a preferred embodiment safety surround system 60 comprises two (or more) cameras/mirrors that are preferably provided at or adjacent to the corners of lifting device to provide an operator with the aforementioned 360-view around the vehicle to be lifted. Optionally, camera views are shown on a display of the controller, for example on a display of the remote control. The cameras and/or mirrors can be provided at a strategic position in a workplace and/or can be attached to one or more of the lifting devices.

For safeguarding privacy of operators and/or other person in a workplace, the cameras can be switched off when the lifting device is not moving, i.e. ascend and/or descend. In addition, or as an alternative, persons or their faces can be automatically blurred to guarantee privacy.

In a further presently preferred embodiment of the invention a camera, optionally a camera of the safety surround system, is configured to detect and identity a license plate or other identification of the vehicle to be lifted. This enables coupling the lifting operation to the vehicle and/or vehicle owner, for example in the accounting.

The various aspects and features described and shown in the specification can be applied, individually, wherever possible. These individual aspects, and a particular aspect of features described in the attached dependent claims, may be made subject of divisional patent applications.

For example, a lifting device for lifting a vehicle according to the present invention can be provided that comprises a frame with a moveable carrier that is configured for carrying the vehicle, and a drive which acts on the carrier and is configured for raising and/or lowering the carrier relative to the frame, wherein a controller is provided that is configured for controlling the vehicle lifting, wherein the controller comprises an activator configured for searching and/or coupling to the lifting device. In such lifting device the (wireless) remote control is optional. Furthermore, such lifting device may optionally incorporate any of the aforementioned further features.

The invention further also relates to a lifting system for lifting a vehicle, wherein the lifting system comprises one or more lifting devices according to the present invention.

Such lifting system provides the same or similar effects and advantages as described for the lifting device.

The one or more lifting devices may relate to different types of lifting devices, such as lifting columns, mobile lifting columns, lifting columns of the two-post lift type with pivoting support arms, the four-posts lift type with runways, in-ground lifts.

In one of the presently preferred embodiments of the invention the lifting system further comprises a further lifting device and a communication coupling configured for coupling the lifting device and this further lifting device to enable a joint lifting operation of the vehicle. This can be used in different situations, including lifting trains or road trains, or articulated/accordeon buses with two or more four-post lifts or sky lifts or other lifting devices, for example. By providing the communication coupling it is no longer required to connect the lifting devices with a communication cable. This further improves the overall flexibility when working with the lifting device and lifting system according to the present invention.

The invention further also relates to a method for lifting a vehicle, with the method comprising the steps of: - providing the lifting device and/or lifting system according to an embodiment of the present invention; - activating controller for searching and/or coupling to the lifting device; and - controlling the lifting of the vehicle.

Such method provides the same or similar effects and/or advantages as described for the lifting device and/or the lifting system.

The communication coupling is configured for coupling the lifting device and a further lifting device to enable a joint lifting operation of the vehicle. This can be used in different situations, including lifting trains or road trains, or articulated/accordeon buses with two or more four-post lifts or sky lifts or other lifting devices, for example. By providing the communication coupling it is no longer required to connect the lifting devices with a communication cable. This further improves the overall flexibility when working with the lifting device and lifting system according to the present invention.

In a presently preferred embodiment of the invention the method further comprises the step of de-activating the controller. By enabling deactivation of the controller, such as a remote control, the overall safety when working with the lifting device and/or lifting system of the invention is further improved. For example, the deactivation can be triggered by exceeding an inactive time period and/or inactive distance. This is already mentioned earlier in relation to the lifting device. In particular, the RFID-system can be used to determine the distance between the controller, such as the remote control, and the lifting device.

In a further embodiment of the invention the method further comprises the step of selecting one or more lifting devices with the lifting device selector of the controller, such as the remote control. This enhances the functionality of the remote control, for example. Furthermore, it improves the flexibility when working with lifting device when lifting a vehicle.

In a further preferred embodiment of the invention the method further comprises the step of coupling the lifting device and a further lifting device to enable jointly lifting a vehicle.

In a further preferred embodiment of the invention the method further comprises the step of authorizing a user for controlling the lifting device, preferably controlling the lifting device with a remote control. By providing the user with a personalized authorization, the operational functionality of the remote control can be adjusted and brought into conformity with the authorization settings for a specific user. For example, a user can be certified to control mobile lifting columns while not being certified to use an in-ground lift, for example. In case of a universal remote control that can be used for controlling a lifting operation with different lifting device types the training and certification of a user can be used to determine the correct authorizations for a specific user when working with a remote control, for example. This improves flexibility and increases safety when working with the lifting device and/or lifting system of the present invention.

Further advantages, features and details of the invention will be elucidated on the basis of preferred embodiments thereof, wherein reference is made to the accompanying drawings, in which: - Figure |A shows a sky lift type lifting device according to the present invention; - Figure 1B shows a first and a second sky lift type lifting device according to the present invention for jointly lifting a bus; - Figure 2 shows a lifting system comprising a number of mobile lifting columns according to the mvention; - Figure 3 A-B shows an in-ground lifting device of the piston type according to the present invention; - Figure 4 shows an in-ground lifting device of the scissor type according to the present invention; - Figure 5 shows a four-post lifting device according to the present invention; - Figure 6 shows a two-post lifting device according to the present invention; - Figure 7 schematically shows the operation of the lifting device and/or lifting system according to an embodiment of the invention; and - Figure 8 schematically shows a safety check within the lifting device and/or lifting system according to an embodiment of the invention.

The following description is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. While the disclosure is described as having exemplary attributes and applications, the present disclosure can be further modified. This application is therefore intended to cover any variations, uses, or adaptations of the disclosure using its general principles.

Further, this application is intended to cover such departures from the present disclosure as come within known or customary practice of those skilled in the art to which this disclosure pertains and which fall within the limits of the appended claims. Accordingly, the following description of certain embodiments and examples should be considered merely exemplary and not in any way limiting.

Lifting device 2 (figure 1A) relates to a so-called sky lift tvpe lifting device. Lifting device 2 is capable of lifting vehicle 4 from ground surface 6. In the illustrated embodiment lifting device 2 comprises four legs 8 and two carriers 10. Cylinder 12 acts as the drive for lifting device 2.

Controller 14 is schematically illustrated and comprises control parts for lifting device 2.

In the illustrated embodiment remote control 16 is provided. In the illustrated embodiment remote control 16 comprises emergency stop 18, lifting button 20, lowering button 22, unlock button 24, and confirmation bottom 26. In addition, display 28 is provided. Optionally, RGB-LED 29 is provided that may indicate the actual status of remote control 16 and its interaction with lifting device 2. It will be understood that other configurations for remote control 16 can also be envisaged in accordance with the present invention.

In the illustrated embodiment remote control 16 comprises RFID tag 27 as part of RFID- system 30. Controller 14 comprises RFID-reader 32 in the illustrated embodiment. It will be understood that other configurations for the RFID-system 30 can also be envisaged in accordance with the present invention.

Remote control 16 further optionally comprises magnetic coupling 34 to enable coupling remote control 16 to lifting device 2. Also optionally, lamp 36 is provided to generate a torch-like functionality to remote control 16 and/or provide a visual warning means as an alternative or in addition to acoustic signaler 38 that is optionally provided in remote control 16 or control 14. In the illustrated embodiment de-activator 40 is schematically illustrated in remote control 16.

Charger 42, preferably of the wireless type, is schematically illustrated for lifting device 2.

Transmitter/receiver(s) 44 are provided to remote control 16 and control 14 and provide an embodiment of a wireless communication coupling for lifting device 2. Transmitter/receiver(s) 44 are configured for coupling to another lifting device to enable joint coupling of a vehicle, such as bus 4a, with two (or) more lifting devices 24,b.

The activation distance 46 is schematically illustrated in figure 1 for lifting device 2. A lifting device selector can be provided on a touchscreen of display 28 and/or as a separate switch 48. De- activator 50 is schematically illustrated in remote control 16. De-activator 50 deactivates remote control 16 when activation distance 46 is larger than a threshold value and/or a time-out period (time period without activity) is larger than a threshold value.

Safety surround system 60 comprises one or more cameras 62a,b and/or mirrors 64a.b. In the preferred and illustrated embodiment safety surround system 60 comprises two (or more) cameras/mirrors that are preferably provided at or adjacent the comers of lifting device 2 to provide an operator with a full view around vehicle 4. Optionally, camera views are shown on display 28.

Lifting system 3 (figure 1B) comprises lifting device 2a and further lifting device 2b. Lifting system 3 uses transmitter/receiver(s) 44 to synchronize the lifting operation. If needed, wireless communication 45, which is schematically illustrated in figure 3, can be limited to communication between remote control 16 and one lifting device 2, for example to lift (small) vehicle 4. In case another bus da requires lifting communication 45 is restored such that two or more lifting devices 2a,b can be jointly operated.

Lifting system 100 comprises a set of four lifting devices 102 (figure 2). Lifting columns 102 lift passenger car 4 from ground 6. In the illustrated embodiment lifting columns 102 are connected to each other by wireless communication means. Lifting columns 102 comprise foot 104 which can travel on running wheels 106 over ground surface 6 or for instance a floor of a garage or workshop.

In the forks of foot 104 there is provided additional running wheel 108. Running wheel 106 is part of pallet truck mechanism 110 that enables easy maneuvering of mobile lifting column 102. Lifting column 102 further comprises mast 116 and carrier 118 that is movable up downward along mast 116. Carrier 118 is driven by motor/drive system 120.

In the illustrated embodiment each lifting column 102 is provided with the local controller 122 that allows a user to control lifting system 100. In the illustrated embodiment separate controller 124 with optional display 126 is provided.

In-ground lift 202 (figures 3A-B) is used to lift vehicle 4 and comprises one or more moveable lifts 206 that can be moved in pit 208. In the illustrated embodiment stationary lift 210 is provided in cassette or box 212 with telescopic lifting cylinder 214. Carriers 216 can carry vehicle 4. In the illustrated embodiment wheel hatches or wheel recesses 218 are provided as well as hatch 220 for maintenance or inspection, for example. Remote control 128 can be used for controlling lifting system 202.

Also, in the illustrated embodiment lifting system 202 comprises remote control 128. In this illustrated embodiment remote control 128 that comprises additional buttons 23, 25 which are provided to control the horizontal movement of lifts 206, for example. It will be understood that other functionality of remote control 16 (figure 1) can be applied to remote control 128 (figure 2) and vice versa. Optionally, RGB-LED 29 is provided that may indicate the actual status of remote control 128 and its interaction with lifting device 2. For all the illustrated lifting systems and lifting devices different remote controls 16, 128 can be applied. Furthermore, it will be understood that a controller 124 capable of controlling multiple lifting devices 102 can be provided as a separate controller and/or similar control functions can be incorporated in local controller 122 that also can be used to control the other lifting devices 102 in lifting system 100.

In-ground lift 302 (figure 4) can also be provided as an alternative to the piston type in-ground lift illustrated in figure 3A-B. Remote control 128 can be used in cooperation with lifting system 302, for example.

Lifting device 402 (figure 5) is of a four-post type and comprises four columns 404 and carrying runways 406. In the illustrated embodiment there is provided indicator 408 with green light 410, red light 412 to signal a driver when vehicle 4 is positioned correctly relative to columns or posts 404 and vehicle 4 can be lifted from ground 6, for example. Remote control 16 may communicate with local controller 414 that can raise and/or lowering runways 406.

Lifting device 502 (figure 6) can be controlled using remote 16, for example. This two-post lifting device 502 comprises two posts 504 that are provided with carrier arms 506. Optionally, light 508 with green light 510 and red light 512 can be provided to indicate a driver or vehicle 4 that the vehicle is positioned correctly or needs to be repositioned. Local controller 514 can be coupled to remote control 16.

It will be understood that the invention can be applied to a range of lifting devices and lifting systems, including but not limited to four-post and two-post lifting columns, such as the Stertil-

Koni mobile column lifts ST1075, the Stertil-Koni two post lifts SK 2070, and the Stertil-Koni four post lifts ST 4120, skylift. mobile columns, and in-ground lifts, such as the Stertil in-ground

Ecolift and the Stertil in-ground Diamond lift. Also, it will be understood that additional embodiments of the invention can be envisaged combining and/or switching features from the described and/or illustrated embodiments. For example, remote controls 16, 128 can optionally be applied to all different lifting devices and lifting systems.

Method 1002 (figure 7) of lifting a vehicle starts in step 1004 with the selection of remote control 16, 128 (figure 7) after which authorization step 1006 is performed, wherein optionally a user is identified and/or authorized to perform certain operations with certain lifting devices.

Thereafter, the lifting device or lifting devices are optionally selected in selection step 1008 using remote control 128 or any of the local controllers. Optionally, a further lifting device is selected in step 1010. For example, this step can be used in different situations, including when lifting trains or road trains. or articulated/accordeon buses. The control of the lifting operation is started in step 1012 whereafter the vehicle can be lifted in lifting step 1014. After work on the vehicle is performed or otherwise ended, a deactivation step 1016 is performed to end the operation of lifting vehicle 4.

Safety protocol 1050 (figure 8) involves communication check 1052. Check 1052 involves checking communication is received within a specific time interval. Optionally, distance check 1054 is performed to check distance 46 between remote control 16, 128 and the one or more lifting devices. Also optionally, activity check 1056 is performed, preferably involving starting a time-out time period after an action is performed. In case the timeout period passes and/or exceeds a threshold value without any further activity from a user and/or distance 46 exceeds a threshold value, the remote control 16, 128 is decoupled from the respective lifting device.

The present invention is by no means limited to the above-described preferred embodiments thereof. The rights sought are defined by the following claims, within the scope of which many modifications can be envisaged. For example, it is explicitly mentioned that combinations of the illustrated embodiments are possible, including combinations of individual features thereof.

CLAUSES

I. Lifting device for lifting a vehicle, the lifting device comprising: - a frame with a moveable carrier that is configured for carrying the vehicle: - adrive which acts on the carrier and is configured for raising and/or lowering the carrier relative to the frame; - a controller configured for controlling the vehicle lifting, wherein the controller comprises an activator configured for searching and/or coupling to the lifting device, wherein the activator comprises an RFID-system; and - a wireless communication coupling configured for coupling the lifting device to a further lifting device to enable jointly lifting the vehicle. 2. Lifting device according to clause 1, wherein the controller comprises a remote control. 3. Lifting device according to clause 1 or 2, wherein the controller comprises a wireless transmitter and receiver. 4. Lifting device according to clause 2 or 3, wherein the remote control comprises a wireless charger. 5. Lifting device according to clause 4, wherein the remote control is gastight. 6. Lifting device according to one of the foregoing clauses, further comprising a de-activator. 7. Lifting device according to clause 6, wherein the de-activator applies an inactive time period. 8. Lifting device according to clause 6 or 7, wherein the de-activator applies an inactive distance. 9. Lifting device according to clause 6, 7 or 8, wherein the de-activator is adjustable. 10. Lifting device according to one of the foregoing clauses, wherein the controller further comprising an RFID-tag.

11. Lifting device according to clause 10, wherein the frame of lifting device comprises an

RFID-reader. 12. Lifting device according to one of the foregoing clauses, wherein the controller comprises a signaling device. 13. Lifting device according to the foregoing clause, wherein the signaling device comprises an

RGB-led. 14. Lifting device according to one of the foregoing clauses, wherein the controller further comprising a lifting device selector. 15. Lifting device according to one of the foregoing clauses, wherein the controller further comprising a magnetic coupling configured for coupling to the frame of the lifting device, 16. Lifting device according to one of the foregoing clauses, wherein the controller further comprising a lamp. 17. Lifting device according to one of the foregoing clauses, further comprising a safety surround system that is configured to provide a view around the vehicle to be lifted. 18. Lifting device according to the foregoing clause, wherein the safety surround system comprises one or more cameras and/or mirrors. 19. Lifting system comprising a lifting device according to any of the foregoing clauses. 20. Lifting system comprising a further lifting device, wherein the communication coupling is configured for coupling the lifting device and the further lifting device to enable jointly lifting the vehicle. 21. Method for lifting a vehicle, the method comprising the steps of: - providing a lifting device and/or lifting system according to one of the foregoing clauses; - activating the controller for searching and/or coupling to the lifting device: and - controlling the lifting of the vehicle.

22. Method according to the foregoing clause, further comprising the step of de-activating the controller. 23. Method according to the foregoing clause, wherein the de-activating is triggered by exceeding an inactive time period and/or inactive distance. 24. Method according to clause 21, 22 of 23, further comprising the step of determining a distance between the controller and the lifting device with the RFID-system. 25. Method according to one of the foregoing clauses 21-24, further comprising the step of selecting one or more lifting devices with a lifting device selector of the controller. 26. Method according to one of the foregoing clauses 21-25, further comprising the step of coupling the lifting device and a further lifting device to enable jointly lifting the vehicle.

27. Method according to one of the foregoing clauses 21-26, further comprising the step of authorizing a user for controlling the lifting device.

Claims (27)

CONCLUSIONS 1. Lifting device for lifting a vehicle, the lifting device comprising: - a frame with a movable carrier adapted to carry the vehicle; - a drive acting on the carrier and adapted to raise and/or lower the carrier relative to the frame; - a control adapted to control the lifting of the vehicle, the control comprising an activator adapted to search for and/or connect to the lifting device, the activator comprising an RFID system; and - a wireless communication link adapted to connect the lifting device and a further lifting device for jointly lifting the vehicle. 2. Lifting device according to claim 1, wherein the control comprises a remote control. 3. Lifting device according to claim 1 or 2, wherein the control comprises a wireless transmitter and receiver. 4. Lifting device according to claim 2 or 3, wherein the remote control comprises a wireless charger. 5. Lifting device according to claim 4, wherein the remote control is gas-tight. 6. Lifting device according to any of the preceding claims, further comprising a deactivator. 7. Lifting device according to claim 6, wherein the deactivator uses a mactive time period. 8. Lifting device according to claim 6 or 7, wherein the deactivator uses an inactive distance. 9. Lifting device according to claim 6, 7 or 8, wherein the deactivator is adjustable. 10. Lifting device according to any of the preceding claims, wherein the control further comprises an RFID tag. 11. Lifting device according to claim 10, wherein the frame of the lifting device comprises an RFID reader. 12. Lifting device according to any of the preceding claims, wherein the control comprises a signalling device. 13. Lifting device according to the preceding claim, wherein the signalling device comprises an RGB LED. 14. A lifting device according to any preceding claim, wherein the control further comprises a lifting device selector. 15. Lifting device according to any of the preceding claims, wherein the control further comprises a magnetic coupling adapted for coupling to the frame of the lifting device, 16. Lifting device according to any of the preceding claims, wherein the control further comprises a lamp. 17. A lifting device according to any preceding claim, further comprising a safety environment system designed to provide visibility around the vehicle to be lifted. 18. Lifting device according to the preceding claim, wherein the safety environment system comprises one or more cameras and/or mirrors. 19. Lifting system comprising a lifting device according to any of the preceding claims. 20. Lifting system comprising a further lifting device and a communication coupling designed to couple the lifting device and the further lifting device for jointly lifting the vehicle. 21. Method for lifting a vehicle, the method comprising the steps of: - providing a lifting device and/or lifting system according to any one of the preceding claims; - activating the control for searching and/or coupling to the lifting device; and - controlling the lifting of the vehicle. 22. A method according to the preceding claim, further comprising the step of deactivating the control. 23. Method according to the preceding claim, wherein the deactivation is activated by exceeding an inactive time period and/or inactive distance. 24. Method according to claim 21, 22 or 23, further comprising the step of determining a distance between the control and the lifting device with the RFID system. 25. A method according to any one of the preceding claims 21-24, further comprising the step of selecting one or more lifting devices with a lifting device selector of the control. 26. Method according to any of the preceding claims 21-25, further comprising the step of coupling the lifting device and a further lifting device to enable the vehicle to be lifted together. 27. A method according to any one of the preceding claims 21-26, further comprising the step of authorizing a user to operate the lifting device.