Abstract: A method is provided for transmitting data in a system for determining a location of at least one industrial truck comprising a mobile radio station and positioned in an area having a plurality of stationary radio stations. The method comprises transmitting a position-determining signal from the mobile radio station to the plurality of stationary radio stations. The position-determining signal is received and a position signal is transmitted from the plurality of stationary radio stations to the mobile radio station. Additional data is appended to at least one of the position-determining signal and the position signal and is evaluated. A current vehicle position is then determined from at least three received position signals.

Abstract: A method is provided for determining a current position of at least one industrial truck having a mobile radio station and positioned in an area having a plurality of stationary radio stations. The method comprises determining vehicle data pertaining to at least one of a vehicle speed and a steering angle of the at least one industrial truck. A position-determining signal is transmitted from the mobile radio station and received by the plurality of stationary radio stations. A position signal is then transmitted from each of the plurality of the stationary radio stations to the mobile radio station. Additional data is appended to at least one of the position-determining signal and the position signal and the current position of the at least one industrial truck is determined from at least three position signals received by the mobile radio station.

Abstract: A method is provided for transmitting data in a system for determining a location of at least one industrial truck comprising a mobile radio station and positioned in an area having a plurality of stationary radio stations. The method comprises transmitting a position-determining signal from the mobile radio station to the plurality of stationary radio stations. The position-determining signal is received and a position signal is transmitted from the plurality of stationary radio stations to the mobile radio station. Additional data is appended to at least one of the position-determining signal and the position signal and is evaluated. A current vehicle position is then determined from at least three received position signals.

Abstract: An industrial truck comprises a lift frame having a load part for carrying a load and a hydraulic system including at least one hydraulic cylinder having a piston rod disposed within a cylindrical housing, and a hydraulic power unit. At least one sensor is configured to determine at least one of: (i) an actual speed of the piston rod of the at least one hydraulic cylinder, and (ii) an actual acceleration of the piston rod of the at least one hydraulic cylinder. Furthermore, a control unit is configured to: (i) receive at least one of a target speed of the piston rod and a target acceleration of the piston rod, (ii) determine at least one of a speed control deviation value from the target speed, and an acceleration control deviation value from the target acceleration, and, (iii) regulate at least one of the actual speed of the piston rod based on the actual speed control deviation value and the actual acceleration of the piston rod based on the actual acceleration control deviation value.

Abstract: An industrial truck with an electronic memory and/or a data transfer unit, an equipment for acquiring utilization data and a control unit, which is connected with the equipment for acquiring utilization data and the memory and/or the data transfer unit, characterized in that the control unit continuously generates an utilization protocol from the acquired utilization data and files it in the memory or transmits it to the data transfer unit.

Abstract: An apparatus for controlling a hybrid drive system for a motor vehicle, an industrial truck in particular, with an internal combustion engine BKM, an accumulator for electric energy, an apparatus for acquiring the charge condition SOC of the accumulator, at least one electric engine E1/E2, which is connectable to the electric accumulator, and at least one gearbox arrangement, via which the internal combustion engine BKM, the electric engine E1/E2 and at least one wheel of the vehicle can be coupled to each other, with the following features: a desired value transmitter for the travelling speed v, an actual value transmitter for the travelling speed v, a first controlling device for the travelling speed v, and a speed controller for the desired wheel torque; a torque calculation stage, which establishes the desired torque values for the internal combustion engine BKM as well as the desired values for the electric engine E1/E2 from the desired driving torque M-soll or a signal corresponding to the same, a secon

Abstract: Industrial truck with a charger, an asynchronous machine and a three-phase AC control unit which converts a DC voltage of a battery for the asynchronous machine, the charger having a switching power supply which is connected to the three-phase AC control unit via a transformer, the switching power supply, the three-phase AC control unit and the transformer forming a resonant converter, which converts a mains voltage into a charging voltage for the battery.

Abstract: Industrial truck with a display unit for an operator and with a sending and receiving unit directed towards the load pick-up region, which can receive sent data from load goods and from load supports, and an analyzing unit, which displays the received data in the display unit, wherein the analyzing unit examines the data received from a load good with respect to transportation conditions and displays existing transportation conditions in the display unit.

Abstract: An apparatus for determining the position of an industrial truck within a spatial area, in which plural light sources are positioned at predefined locations and emit a radiation that unambiguously characterises the light source without interaction with the industrial truck, wherein the industrial truck has a receiving unit for the radiation of the light sources, which is adapted to identify the light source from the received radiation and to determine an angle of the light source with respect to a vehicle-stationary axis, and the industrial truck further has an analysing unit which is adapted to determine the position of the industrial truck from at least three identified light sources and the angles thereof.

Abstract: An industrial truck with a load supporting device, a sending and receiving unit, the sending and receiving range of which is directed towards a region of the load supporting device and towards a region in front of the load supporting device, and a control unit, which activates the sending and receiving unit for the reception of data from external senders, a sensor being provided which detects a load on the load supporting device and triggers an activation of the sending and receiving unit via the control unit when the sensor has detected a load, characterized in that the sensor is integrated into a housing for the sending and receiving unit.

Abstract: Steering drive for a wheel of a ground conveyor with an apparatus for recording the actual angle of the steered wheel, with a steering motor, a steering controller or regulator driven by a steering angle transmitter, the input signal of which is given to the steering motor, a steering drive coupled with the shaft of the steering motor, the output side of which is connected with a steering plate, which mounts the steered wheel, and a rotation angle sensor, which records the rotation angle of the steering plate, wherein the shaft of the steering motor is designed as a hollow shaft, through which a sensor drive shaft is inserted and which is connected on the drive side with the output side of the steering drive and works together with the angle sensor on the side of the steering motor facing away from the steering drive.

Abstract: System for assisting a driver of an industrial truck with the following features: transponders are arranged at predetermined points of the working area of the industrial truck, the transponders are designed so that they transmit a UHF signal upon receipt of a transmission signal, the industrial truck comprises at least one aerial for transmitting and/or receiving an LF signal, an evaluation unit is arranged on the industrial truck which, upon receipt of a signal, sends said signal to an electronic evaluation unit for the UHF signals, the evaluation unit is connected to an on-board computer in the industrial truck.

Abstract: Drive and steering unit for a wheel of a floor conveyor, in which a driving motor and a steering motor are disposed coaxially one below the other and are each one coupled via a drive gear or a steering gear, respectively, with a shaft of the wheel or the bearing equipment of the wheel, respectively, wherein one shaft extends as a hollow shaft and the other shaft extends through the hollow shaft, and an electronic control for the driving motor and the steering motor, which is connected with desired value transmitters for the rotational speed and the steering angle, characterised in that the electronic control has at least one circuit board which is coaxially arranged between the driving motor and the steering motor and/or the steering motor and the steering gear.

Abstract: A method for the prevention of turnover of rear wheel steered vehicles includes providing a vehicle with a plurality of sensors, and providing slip angle restriction software adapted to receive as inputs the outputs of the plurality of sensors. The software calculates an estimated sideslip angle based on sensor outputs, calculates a slip angle on the rear wheels based on the estimated sideslip angle, calculates a maximum allowable slip angle, compares the slip angle and the maximum allowable slip angle, and determines a steering angle correction value if the actual slip angle is greater than the maximum allowable slip angle. Any steering angle correction value calculated is applied to the rear wheels of the vehicle.

Abstract: Industrial truck with a charger, an asynchronous machine and a three-phase AC control unit which converts a DC voltage of a battery for the asynchronous machine, the charger having a switching power supply which is connected to the three-phase AC control unit via a transformer, the switching power supply, the three-phase AC control unit and the transformer forming a resonant converter, which converts a mains voltage into a charging voltage for the battery.

Abstract: System for identifying and managing pallets, which are placed at or picked up from bin locations by means of an industrial truck, with the following characteristics: a box-shaped housing, which contains all components required for communicating with transponders as well as evaluating signals from the transponders, in particular a read/write unit, a send/receive circuit and an evaluation unit, wherein the evaluation unit has an interface to an on-board, the box-shaped housing is attached to the bottom side of the lower cross bar of a support for the loading fork between the fork arms, a single transponder is attached to the front side of the middle block of the pallet, and/or a rack support at the entrance that faces the industrial truck is provided with a transponder on a longitudinal support.

Abstract: Rotation angle sensor, in particular for an electrical steering system of an industrial truck, in which two magnetic field sensitive sensor elements are arranged on orthogonal axes and a permanent magnet is attached to a shaft extending through the axis intersection point and the output signals X, Y of the sensor elements are given to an evaluation unit, which determines from the two output signals X, Y the rotation angle value by means of a function saved in the evaluation unit, characterized in that for a plurality of predetermined values of one of the output signals X or Y associated ideal values calculated from the geometrical relationship of the sensors of the other output signal Y, X are saved in the evaluation unit, the measured values of the other output signal Y, X are compared with the ideal values and a warning or stop signal is created if the difference between the measured and ideal value reaches a predetermined amount.

Abstract: An apparatus for controlling a hybrid drive system for a motor vehicle, an industrial truck in particular, with an internal combustion engine BKM, an accumulator for electric energy, an apparatus for acquiring the charge condition SOC of the accumulator, at least one electric engine E1/E2, which is connectable to the electric accumulator, and at least one gearbox arrangement, via which the internal combustion engine BKM, the electric engine E1/E2 and at least one wheel of the vehicle can be coupled to each other, with the following features: a desired value transmitter for the travelling speed v, an actual value transmitter for the travelling speed v, a first controlling device for the travelling speed v, and a speed controller for the desired wheel torque; a torque calculation stage, which establishes the desired torque values for the internal combustion engine BKM as well as the desired values for the electric engine E1/E2 from the desired driving torque M-soll or a signal corresponding to the same, a secon

Abstract: Steering drive for a wheel of a ground conveyor with an apparatus for recording the actual angle of the steered wheel, with a steering motor, a steering controller or regulator driven by a steering angle transmitter, the input signal of which is given to the steering motor, a steering drive coupled with the shaft of the steering motor, the output side of which is connected with a steering plate, which mounts the steered wheel, and a rotation angle sensor, which records the rotation angle of the steering plate, wherein the shaft of the steering motor is designed as a hollow shaft, through which a sensor drive shaft is inserted and which is connected on the drive side with the output side of the steering drive and works together with the angle sensor on the side of the steering motor facing away from the steering drive.

Abstract: An industrial truck with a load supporting means, a sending and receiving unit, the sending and receiving range of which is directed towards a region of the load supporting means and towards a region in front of the load supporting means, and a control unit, which activates the sending and receiving unit for the reception of data from external senders, a sensor being provided which detects a load on the load supporting means and triggers an activation of the sending and receiving unit via the control unit when the sensor has detected a load, characterised in that the sensor is integrated into a housing for the sending and receiving unit.