Control device for controlling a lifting device

Abstract

A control device (1) for controlling a lifting device (2), in particular a pit lift, wherein the lifting device (2) has at least one lifting unit (5) with at least one mounting interface (10), a load-bearing unit (11), and one or more load distributors (4a, 4b), wherein at least one load distributor (4a, 4b) can be coupled to the lifting unit (5) at the mounting interface (10), and wherein the load-bearing unit (11) is configured to determine a load applied to the lifting unit (5) and to transmit it to the control device (1), and the control device (1) is configured to receive a stop condition from an information unit (12) and the applied load from the load-bearing unit (11), and to output a stop signal to the lifting device (2) when the stop condition is met, wherein the fulfillment of the stop condition is determined by the received applied load.

Description

[0001] The present disclosure relates to a control device configured to control a lifting device, in particular a pit jack or other lifting devices for lifting components of motor vehicles and / or commercial vehicles. The control device takes into account an applied load on the lifting device to prevent overloading a load distributor, and the control device outputs a stop signal when a stop condition is met.

[0002] Lifting devices are regularly used in everyday workshop operations. They are particularly common during maintenance and repair work, often comprising a lifting unit such as pit jacks. For example, to replace a vehicle component, the vehicle is maneuvered over a pit, with the component to be replaced exposed from below. Alternatively, the vehicle can be lifted using a vehicle lift. For replacing a vehicle component, such as a high-voltage battery or a transmission, an auxiliary element / auxiliary device, or load distributor, is used. This device supports the vehicle component at its mounting points and transfers the load to the lifting unit. Both the auxiliary element and the mounting point of the vehicle component have a maximum load capacity, exceeding which usually results in damage.A further problem is that lifting devices are typically designed to generate greater forces than an auxiliary element or lifting point is capable of bearing. Therefore, improper handling of the lifting device can cause damage.

[0003] In the prior art, weighing systems are known that are installed between the pit jack and the auxiliary element and display the applied load. The operator is responsible for monitoring the load in addition to the actual work process. Furthermore, the operator must ensure that each component in the load flow operates within its load-bearing capacity limit. As a rule, the lowest load-bearing capacity limit is decisive. Therefore, for monitoring purposes, the operator must be aware of all load-bearing capacity limits of the components in the load flow. A single load-bearing capacity exceedance can damage a component and compromise workplace safety.

[0004] Thus, one purpose of this disclosure is to protect the load distributors / auxiliary equipment in operation and to increase occupational safety. Furthermore, it aims to reduce the workload and effort required of the user.

[0005] To solve these problems, the features of the independent claims are proposed. Advantageous further developments are found in the dependent claims. The respective dependent claims relate to preferred embodiments, which can be provided individually or in combination.

[0006] According to one aspect of the disclosure, a control device for controlling a lifting device is proposed. The lifting device could be, for example, a pit jack, but other lifting / hoisting devices, particularly those used in motor vehicles, are also included as lifting devices within the meaning of the disclosure.

[0007] A pit jack is a modular system designed to lift or at least support individual components. The lifting device can include a lifting unit configured to generate force and / or movement. This lifting unit may include a hydraulic cylinder. Alternatively or additionally, the lifting unit may include an electric cylinder, which, for example, operates via an electric motor and spindle.

[0008] The lifting device may further comprise at least one mounting interface. The mounting interface may be configured to receive the load of a component to be supported. The mounting interface may be in contact with a load distributor.

[0009] In the operating state, one (or more) load distributors are regularly mounted at the mounting interface.

[0010] A load distributor can be defined as an element whose primary purpose is to receive a load at designated positions and release it at other designated positions. In particular, a load distributor can be an auxiliary device / aid / auxiliary element designed to lift, lower, and / or move one or more assemblies. A load distributor can be, in particular, an engine support beam, axle support beam, mounting frame, crane adapter, test fixture, gearbox plate, support plate, support bridge, or support tube. Furthermore, or alternatively, a load distributor within the meaning of this disclosure can be defined as an assembly mounting of the object to be lifted. An assembly mounting of an assembly is designed to absorb forces during assembly or in the installed state. For example, a surface on the underside of a gearbox can constitute an assembly mounting or a load distributor.As another example, the engine mounts of an internal combustion engine can be described as load distributors.

[0011] Additionally or alternatively, the mounting interface can be in contact with a load distributor. The mounting interface can, in particular, include a pin receptacle or other suitable mounting devices to connect the load distributor and the interface. When operating with a load distributor, one (or more) load distributors are mounted at the mounting interface.

[0012] The lifting device can include a load capacity unit configured to determine the load being carried by the lifting unit, or the load capacity. The load capacity unit can include a hydraulic pressure sensor that provides the hydraulic pressure to the lifting device. The load capacity unit can determine the load capacity based on the hydraulic pressure provided by the hydraulic pressure sensor. Alternatively or additionally, the load capacity unit can include a voltage and / or current sensor that determines the voltage and / or current required to supply a drive unit. The drive unit can supply a hydraulic cylinder with hydraulic fluid. Alternatively, the drive unit can be configured to actuate the lifting unit without the use of hydraulic fluid. The load capacity unit can determine the applied load, for example, based on the voltage and / or current.Alternatively or additionally, the load-bearing unit can include at least one force sensor. The force sensor can measure the load applied by the lifting unit. The load-bearing unit can be configured to provide the applied load to the control device. The load-bearing unit can transmit the applied load to the control device wirelessly or via a wired connection, in particular via WLAN and / or Bluetooth or other wireless standards.

[0013] The lifting device can include an information unit for providing at least one stop condition, or the information unit can be provided separately from the lifting device as a separate entity, e.g., a control computer that exchanges data wirelessly or via cable with the lifting device and / or the control device. The information unit can be configured to provide the stop condition to the control device. The information unit can be connected to the control device wirelessly or via cable, in particular via WLAN and / or Bluetooth. The information unit can be configured to provide the stop condition to the control device.

[0014] With regard to the entities introduced above, it should be noted that the control device, the lifting device, and the information unit can each be independent (separate) devices / components / equipment connected to each other via data transmission links, either wired or wireless. However, it is also possible for some of these devices to be integrated. For example, the control device can be part of the lifting device's control unit and thus be located in the same housing, on the same circuit board, or in the same memory (in the latter case, the control device would be implemented purely in software, which is also covered by the disclosure, rather than a purely hardware implementation or a hybrid form). The information unit (which can be implemented as software, hardware, or a combination thereof) can also be part of the control device and / or the lifting device.In the most integrated case, all three of the aforementioned devices / units are integrated into the lifting device, which will be explained in more detail below in this description.

[0015] The control device can be configured to receive the stop condition from the information unit and the applied load from the load-bearing unit. The control device can be configured to output a stop signal when the stop condition is met. The fulfillment of the stop condition can be determined by the received applied load, which can be represented, for example, by a stored limit value, limit range, equation / inequality, etc.

[0016] The control device can be configured to send the stop signal to the lifting device. The stop signal can be configured to halt the operation of the lifting unit. Stopping can be achieved by a controlled reduction in travel speed. In a preferred embodiment, stopping can result in an immediate deceleration that is as rapid as possible within the constraints of the technical implementation. Stopping can be achieved by reducing the power supply to a drive unit. Alternatively or additionally, stopping can be achieved by operating a valve that interrupts the supply of hydraulic fluid to the hydraulic cylinder. Again, alternatively or additionally, the lifting device can include a braking device that prevents the movement of the lifting unit by means of at least one friction brake.Additionally or alternatively, stopping can be understood as a reduction of the force generated by the lifting unit.

[0017] For example, when the lifting device is moving towards a "block" position, the load being lifted can increase. If the stop condition is met, the control device can send a stop signal to the lifting device. The operation can then be stopped, resulting – if at all – in only a slight delay and primarily in a reduction of the force generated by the lifting unit.

[0018] The aforementioned design of the control device enables the safe operation of such a controlled lifting device and protects the auxiliary equipment during operation, as it is reliably protected from overload. The user does not need to provide any work or information to achieve this, thus reducing their workload and effort.

[0019] The stop condition can include a numerical value and a relation. The numerical value can be, for example, an integer, and in a preferred variant, a real number. The numerical value can be related to a load-bearing limit of at least one load distributor. A numerical range can be defined in combination with the relation. The numerical range can extend from and including the numerical value to an infinite value in the direction of the relation.

[0020] Additionally or alternatively, the stopping condition can include a numerical range, where the numerical range can have an upper limit and a lower limit, and each of the limits can correspond to a finite or infinite value.

[0021] The numerical value can be linked to a unit of measurement. For example, the numerical value can represent a multiple of a force, which can be determined in Newtons. In a preferred embodiment, the numerical value can represent a multiple of a mass, which can be determined in tonnes, kilograms, pounds, or ounces. Linking the numerical value to a mass is advantageous because it simplifies the verification of the stopping condition using familiar units of measurement, eliminating the need for conversion by the user. A safety factor can be considered when defining the numerical value / range. In a particularly preferred embodiment, the weight of the load distributor's own mass can be taken into account when defining the numerical value / range.

[0022] The control device can be appropriately configured hardware and / or software, as explained above, which is integrated into or installed on the lifting device. This can be implemented by installing the control device as a separate module on the lifting device. Alternatively, the control device can be an external control computer that communicates with the lifting device. It can also be implemented by adding the control device described here, in the form of hardware and / or software, to an existing control device. In particular, it is very simple if the control device described here is implemented as a software program and simply needs to be installed on an existing control device.Other implementation methods, even if not explicitly mentioned here, are of course also part of this disclosure, insofar as they are obvious to a specialist, including the possibility of implementing voice control, e.g., for triggering stops, starts or stops, speeds up / down, etc., as well as other options not explicitly mentioned here. The control device can be, as described above, a CPU, an ASIC, a software product, or the like.

[0023] The control device can be configured to determine whether the received applied load lies within or outside the numerical range of the stop condition. Determining that a received, determined load lies within the numerical range of the stop condition can be described as fulfilling the stop condition. In other words, the stop condition can be fulfilled if the received, determined load lies within the numerical range. Alternatively, the stop condition can be fulfilled if the received, determined load lies in the direction of the relation relative to the numerical value.

[0024] The control device may include a comparator unit configured to compare the numerical value, including its relation, with the value of the received applied load. Alternatively or additionally, the comparator unit may be configured to determine whether the value of the received applied load is within the numerical range. The comparator unit may also be configured to determine whether the stop condition is met.

[0025] The control device can include an interface for receiving at least two pieces of information. The information can be of a different nature, but need not be. For example, in the borderline case of fulfilling the stop condition, the information can be identical. In a preferred embodiment, the interface can be configured to receive a stop condition and an applied load. Alternatively or additionally, the control device can include an interface for outputting at least one piece of information. In a preferred embodiment, the interface can output or send a stop signal. In particular, the interface can receive information from the lifting device and / or output or send information to the lifting device. Multiple interfaces, in particular one interface for each input and output, can be configured for sending and receiving information.

[0026] The control device can, for example, be designed as part of a remote control. A remote control is defined as a preferably portable device primarily configured to output at least one control signal to a device distinct from the remote control itself. In one example, the control device can be configured such that the information required for execution is received, processed, and transmitted by the remote control. Alternatively or additionally, the remote control can be detachably attached to the lifting device, whereby detachably attachable may include the remote control and / or a component of the lifting device having corresponding features. This can be achieved, for example, by means of magnetic attachment, suspension devices, hook-and-loop fasteners, and / or the like.

[0027] The lifting device can include a control unit to generate control commands for actuating the lifting unit. The control unit can also be configured to output energy, for example by providing electrical current or a flow rate of a predominantly incompressible fluid, or a hydraulic fluid, in particular hydraulic oil.

[0028] According to another aspect of the disclosure, a control system is proposed, comprising the control device, the lifting device, and the information unit. The control system may also include parts of the respective devices. Alternatively, the control system may comprise only parts of the control device. Any limitation to those explicitly stated in this disclosure is expressly excluded, and it is emphasized that any combination of features can be part of the control system and / or the control device.

[0029] The information unit can include a stop condition memory. The stop condition memory can be configured to store the stop condition.

[0030] The information unit can alternatively or additionally include an identification unit. The identification unit can be configured to provide identification information for the load distributor. This identification information can be a unique identifier, such as an inventory number, title, or the like. The information unit can be configured to provide the stop condition based on the identification information of the control device. The stop condition memory can be configured to assign identification information to a stop condition.

[0031] The stop condition memory and / or the identification unit can be configured to be rewritable. "Worthable" refers to the property that stored information can be replaced by further information, which may or may not differ from the previously stored information. Alternatively or additionally, the stop condition memory and / or the identification unit can be configured to be written only once. In a write-only configuration, information stored once in the stop condition memory cannot be specifically replaced by further information. In a preferred embodiment, the stop condition memory and / or the identification unit can partially comprise a write-only portion as well as a rewritable portion.

[0032] The stop condition memory and / or the identification unit can be at least partially, or even entirely, in contact with the load distributor. This simplifies the unambiguous assignment of the stored information to the respective component.

[0033] The information unit can include an input unit. The input unit can be configured to read the stop condition and / or the identification information. Data transmission from the input unit for reading the stop condition and / or the identification information can be wired or wireless, in particular via electromagnetic waves and / or optically. The input unit can also be a keyboard for data input.

[0034] The stop condition memory and / or identification unit can include a type from the following list: HDD, SSD, CD, DVD, Blu-ray, flash memory, magnetic tape, analog form, especially printed on paper.

[0035] In a preferred embodiment, the stop condition memory and / or the identification unit can be an RFID tag with internal memory. In this embodiment, the input unit can be an RFID reader. The RFID tag can be glued, screwed, or magnetically attached to the respective component.

[0036] In a particularly preferred embodiment, the stop condition memory and / or the identification unit can be a pictogram, in particular a 2D code, Aztec code, MaxiCode, Codabar, matrix code, Quick Response code, QR code, barcode, or generally an optical code. The pictogram can be printed on a predominantly flat substrate such as plastic, cellulose, in particular paper or cardboard, or metal, or a combination thereof. In particular, the stop condition memory and / or the identification unit can be a QR code printed on self-adhesive paper. In such an embodiment, the input unit can be an optical detection system. The optical detection system can be, for example, a barcode scanner, barcode reader, QR code scanner, CCD scanner, omnidirectional scanner, or a combination thereof.In particular, the input unit can be a camera in combination with software for evaluating the image information.

[0037] It should be emphasized that the identification unit can greatly relieve the user, as it enables an automated process for equipping the lifting device with load distributor (components).

[0038] The stop condition memory can be located in a different location than the control system. The stop condition memory can be cloud-based, particularly if the information unit includes an identification unit.

[0039] Furthermore, the control system can include an output unit for displaying the applied load. By displaying the applied load, the user can monitor the operation of the control device and detect an overload of a load distributor at an early stage. The output can be visual, such as a display. Alternatively, the output can be audible, for example, via voice output. Another alternative is a pulsed tone that signals the output of the applied load relative to, or absolutely relative to, the numerical value of the stop condition. The signal can be interrupted by a pause, with a long pause indicating a low load relative to the numerical value of the stop condition, and a continuous signal indicating that the stop condition has been triggered.The output unit can optionally indicate when a threshold value of the ratio / distance of the applied load to the numerical value of the stop condition has been reached by means of an additional visual indication, such as the flashing of warning lights or the color marking of the display of the applied load, or an acoustic message.

[0040] It is also part of the present disclosure that identification information can be understood as enabling the unambiguous identification of a load distributor in the sense described above. A stop condition memory can be understood as a software computer program product capable of outputting a stop condition based on identification information. It is further disclosed that any device executable as a software computer program product in this disclosure can also include AI-supported data processing and machine-learning-based data output. For example, the input unit can also be implemented as a camera module, whereby, for instance, a color or black-and-white image of a load distributor can serve as identification information in the aforementioned sense, and the stop condition memory evaluates the image using AI and outputs a stop condition.

[0041] Advantageous embodiments and further details of the present invention are described below with reference to various exemplary embodiments and schematic figures. The connection is explained in more detail in the schematic drawings. Brief description of the characters Fig. 1: shows the control device in a first embodiment; Fig. 2: shows the control device in a further embodiment; Fig. 3: shows a block diagram of the control device; Detailed description of preferred embodiments

[0042] In the following, exemplary embodiments of the present disclosure are described in detail with reference to exemplary figures. The features of the exemplary embodiments can be combined in whole or in part, and the present disclosure is not limited to the described exemplary embodiments.

[0043] Fig. Figure 1 shows the control device 1 according to a first embodiment. Fig. Figure 1 schematically shows a pit 8, over which a subassembly 9 is positioned centrally. In the present example, an entire vehicle is positioned over the pit 8. The lifting device 2, which is designed as a pit jack, is located in the pit 8. The lifting unit 5 and the assembly interface 10 at its upper end are shown of the lifting device 2.

[0044] A load distributor 4b is positioned directly above the mounting interface 10. In the present embodiment, the load distributor 4b is an axle support beam for lifting an assembly 9, or a vehicle axle. The assembly 9 has two mounting points, or the load distributor 4a, on which the load can be supported for assembly and disassembly.

[0045] The lifting device 2 has a load capacity unit 11 that determines the load applied to the lifting unit 5. In the application example shown, the control device 1 is part of a remote control 6. The control device 1 is connected to at least the load capacity unit 11, the information unit 12, the input unit 13 (not shown), and the lifting device 2 by means of a data cable. Regarding the remote control 6, a preferred embodiment provides that it can be detachably mounted to a part or component of the lifting device 2, so that after use, or when the remote control 6 is not in use, it can be held by the lifting device 2 and does not interfere with its operation. This detachable mounting can particularly preferably be achieved, for example, by means of a magnetic holding force. Thus, the remote control 6 can have a magnet that can be attached to a metallic section of the lifting device 2.Alternatively or additionally, a holding device could be provided on the lifting device 2, into / onto which the remote control can be snapped, plugged in, etc.

[0046] In the present example, the lifting device 2 has a separate control and supply unit, or a control unit for controlling the lifting unit 5.

[0047] In this application example, information unit 12 further comprises stop condition memory 3a on assembly 9 in the area next to a load distributor 4a, as well as stop condition memory 3b, which is positioned on the load distributor 4b. In this application example, stop condition memories 3a and 3b are implemented as printed (or otherwise applied) QR codes, which are positioned within easy reach and visible to the user. The input unit 13 is a mobile phone equipped with a camera module and corresponding software for decoding the QR codes. The respective stop conditions of the load distributors 4a and 4b are transmitted to the control device 1 after being read.

[0048] In the present application example, the lifting unit 14 is capable of lifting a maximum load of 16.5 tons. The axle crossmember, or load distributor 4b, is capable of supporting a maximum load of 10.0 tons. Accordingly, the stop condition for load distributor 4b is 10.0 tons. The load distributor 4a of assembly 9, or the vehicle axle, is capable of supporting the entire vehicle mass of 7.5 tons. Accordingly, the stop condition for load distributor 4a is 7.5 tons. The assembly mounts of assembly 9, shown in the figure as two load distributors 4a, have a common stop condition.

[0049] After the stop conditions are read, the control device 1 is configured to stop the operation of the assembly interface 10 as soon as the stop condition is met. In the current application example, the stop condition is considered to have occurred when a received applied load exceeds the lowest of the received stop conditions – specifically, 7.5 tons. In other words, the load acting on the components in the force flow is limited to a maximum permissible value.

[0050] The user controls the lifting device 2 via the control unit. For example, the user gives a command for upward movement via the control unit. As a result, the lifting unit 5 moves the mounting interface 10 upwards. The axle crossbeam, or the load distributor 4b, is arranged on the mounting interface 10. The load capacity determination unit 11 continuously determines the load on the mounting interface 10.

[0051] In the initial case where there is no contact with assembly 9, the load capacity unit 11 determines the dead load of load distributor 4b. This dead load is taken into account in the stop condition stored in the stop condition memory 3b of load distributor 4b. As the upward movement continues, load distributor 4b makes contact with load distributor 4a of assembly 9. The load capacity unit 11 then detects an increase in the applied load, which is displayed on a screen of the remote control 6. This allows the user to view the current load and, if necessary, verify its accuracy. The display of the remote control 6 serves as the output unit.

[0052] For example, a malfunction caused by the vehicle being lifted becoming entangled in a device attached to the workshop floor, or by the vehicle touching the workshop ceiling, could trigger the stop condition. In such a situation, control device 1 is configured to stop the lifting device 2.

[0053] Fig. Figure 2 shows the control device 1 according to a further embodiment. A motor vehicle is positioned over pit 8 for transmission installation. The lifting device 2, a pit jack, with the lifting unit 5 and the mounting interface 10, is located in pit 8. The load distributor 4b, a transmission plate, is positioned on the mounting interface 10. The assembly 9, i.e., a transmission comprising two load distributors 4a, i.e., assembly mounts, rests on the load distributor 4b. An identification unit 7a, 7b is positioned on each of the assembly 9 and the load distributor 4b. In the present application example, the stop condition memory 3, being a cloud-based solution, is not in contact with the assembly 9 or the load distributor 4b.

[0054] In addition to the previous application example, information unit 12 includes identification units 7a and 7b. In the current application example, information unit 12 is configured to provide the stop condition based on identification information.

[0055] In this application example, the identification units 7a and 7b are configured as rewritable RFID tags. An RFID tag comprises a transmitter / receiver unit and a memory unit for storing the identification information. In this application example, the stop condition memory 3 comprises a database that stores the identification information and the stop condition in a way that allows them to be linked. The input unit 13 is an RFID reading module integrated into the remote control 6. The control device 1 in the remote control 6 is wirelessly connected to the load unit 11 and the information unit 12 for receiving information. Likewise, the control device 1 is wirelessly connected to the lifting device 2 for sending the stop signal.

[0056] The user reads the identification units 7a and 7b using input unit 13. In the current application example, the identification information for assembly 9 is: "Gearbox". The identification information for load distributor 4b is: "Gearbox plate". Information unit 12 internally retrieves the stop conditions from stop condition memory 3 and transmits them to control device 1. In the current application example, the stop condition for the gearbox is 6 kN and for the gearbox plate it is 15 kN. The stop condition is considered fulfilled if the load unit 11 detects a load greater than or equal to 6 kN. As in the first application example, the lifting device 2 is capable of lifting an object with a maximum force of 165 kN.

[0057] For the assembly of component 9, it is placed on the load distributor 4b. After reading the identification information from the identification units 7a and 7b, the information unit 12 sends the stop conditions to the control device 1. The control device 1 is then configured to send a stop signal to the lifting device 2 when the stop condition is met.

[0058] The user initiates the movement of the mounting interface 10, including the load distributor 4b and the assembly 9, via the control unit of the lifting device 2. If continuous movement is required, the operation continues until the assembly, approximately in its installed position, encounters an obstacle. Continuing the movement of the lifting device 2 while the assembly 9 is blocked results in an increase in the load applied to the lifting unit 5. Upon occurrence of the stop condition, the control device 1 stops the movement of the lifting device 2. Damage to the load distributor 4b and the load distributor 4a, and to the assembly 9, is effectively prevented.

[0059] With regard to the examples presented above, Fig. 1 and Fig. 2. It should be clearly stated once again that these examples are examples that can be modified. In particular, the configuration of the identification units 7a, 7b, the input unit 13, the stop condition memory 3a, 3b, etc., can also include other devices / configurations and other suitable combinations with regard to the introduction to the description or the claim support. The examples presented above are therefore not exhaustive for the disclosure.

[0060] Fig. Figure 3 further shows a block diagram of an exemplary control device 1. The control device 1 is configured, on the one hand, to receive at least one stop condition from the information unit 12. Furthermore, the control device 1 is configured to receive an applied load from the load-bearing unit 11. After receiving the stop condition and the applied load, the control device 1 is configured to send a stop signal to the lifting device 2.

[0061] Information unit 12 comprises, analogous to the application example from Fig. 1 one or more stop condition memories 3, 3a, 3b, and an input unit 13. Optional and as in the application example of the Fig. 2. When executed, the information unit 12 can include an identification memory.

[0062] The lifting device 2 comprises the lifting unit 5, at least one mounting interface 10, the load-bearing unit 11 and at least one load distributor 4a,4b.

[0063] The system consisting of control device 1, lifting device 2 and information unit 12 is preferably referred to here as control system 14.

[0064] The features, components, and specific details provided can be exchanged and / or combined to create further embodiments, depending on the required purpose. Any modifications that are within the knowledge of a person skilled in the art are implicitly disclosed in this description.

[0065] In summary, the present disclosure makes it possible to protect the load distributors / auxiliary components of a lifting device during operation and to increase occupational safety. The workload and effort required by the user decrease, partly due to the automation that accompanies the assembly of the lifting device and the load distributors / auxiliary components as disclosed. Reference symbol: 1 Control device 2 Lifting device 3;3a,3b Stop condition memory 4a,4b Load distributor 5 lifting units 6 remote control 7a,7b Identification unit 8 pit 9 Assembly 10 Mounting interface 11 load capacity unit 12 Information Unit 13 Input unit 14 Tax system

Claims

[1] A control device (1) for controlling a lifting device (2), in particular a pit jack, wherein the lifting device (2) comprises at least one lifting unit (5) with at least one mounting interface (10), a load unit (11) and one or more load distributors (4a, 4b), wherein at least one load distributor (4a, 4b) can be coupled to the lifting unit (5) at the mounting interface (10), and wherein the load unit (11) is configured to determine a load applied to the lifting unit (5) and to transmit it to the control device (1), and the control device (1) is configured to receive a stop condition from an information unit (12) and the applied load from the load unit (11) and to output a stop signal to the lifting device (2) when the stop condition is met, wherein the fulfillment of the stop condition is determined by the received applied load. [2] Control device (1) according to claim 1, wherein the stop condition comprises a numerical value including a relation and / or a numerical range. [3] Control device (1) according to at least one of the preceding claims, the control device further comprising a comparison unit, wherein the comparison unit is set up to compare the numerical value, including the relation, with the value of the received applied load, and / or The comparison unit is set up to determine whether the value of the received applied load is within the numerical range. [4] Control device (1) according to at least one of the preceding claims, wherein the control device comprises an interface for receiving at least two pieces of information and for outputting at least one piece of information. [5] Control device (1) according to at least one of the preceding claims, wherein the control device (1) is set up as a software product. [6] Control device according to at least one of the preceding claims, wherein the control device (1) is part of a remote control, preferably the remote control (6) can be detachably attached to the lifting device (2). [7] Tax system (14) encompassing the control device (1) according to at least one of claims 1 to 6; the lifting device (2); and the information unit (12). [8] Control system (1) according to claim 7, wherein the information unit (12) comprises a stop condition memory (3;3a,3b) for storing the stop condition. [9] Control system (1) according to at least one of claims 7 or 8, wherein the information unit (12) comprises an input unit (13) for inputting information, in particular the stop condition. [10] Control system (1) according to at least one of claims 7 to 9, wherein the information unit (12) comprises an identification unit (7a,7b) for storing identification information of the load distributor (4a,4b), and wherein the stop condition memory (3;3a,3b) is configured to provide the stop condition based on the identification information. [11] Control system (1) according to at least one of claims 7 to 10, wherein the stop condition memory (3;3a,3b) and / or the identification unit (7a,7b) is at least partially in contact with the load distributor (4a,4b). [12] Control system (1) according to at least one of claims 7 to 11, wherein the stop condition memory (3;3a,3b) and / or the identification unit (7a,7b) is an RFID tag and the input unit (13) is an RFID reader. [13] Control system (1) according to at least one of claims 7 to 12, wherein the stop condition memory (3;3a,3b) and / or the identification unit (7a,7b) is a pictogram of a barcode and / or the input unit (13) is an optical detection system. [14] Control system (1) according to at least one of claims 7 to 13, further comprising an output unit for outputting the applied load. [15] Control system (1) according to at least one of claims 7 to 14, wherein the load-bearing unit (11) determines the load by measuring a hydraulic pressure of the lifting unit (5). [16] Control system (1) according to at least one of claims 7 to 15, wherein the stop condition memory (3;3a,3b) is cloud-based.

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