Abstract: A steering drive for a steeled wheel of an industrial truck, particularly a rear wheel of a three-wheeled industrial truck, comprising a steering bolster supporting the rear wheel which is supported to be pivotable about a vertical steering axle inside the flame of the industrial truck, a steeling motor coaxial with the steering axle, a bearing assembly between the flame of the industrial truck and the bolster, and a steering transmission between the steering motor and bolster, wherein the steering transmission has a single-stage or multi-stage stepped planetary mechanism or planetary coupler mechanism which is coaxial with the steering axle and the bearing assembly for the bolster is arranged within the steering transmission.

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: Drive system for an industrial truck comprising an internal combustion engine, a four-shaft epicyclic gearing consisting of two or one fixed links which with a first shaft may be connected to the shaft of an internal combustion engine, a first electric motor which is mechanically coupled to a second shaft of the four-shaft epicyclic gearing and is electrically connected to an onboard power supply of the vehicle, a brake coupled to a further shaft of the four-shaft epicyclic gearing, a change gear coupled to a fourth shaft of the four-shaft epicyclic gearing, a summing gear coupled to the change gear, the other input shaft thereof being connected to a second electric motor connected electrically to the onboard power supply and the output shaft thereof being coupled to at least one driven wheel of the industrial truck, at least one consumer for at least one additional function of the vehicle which is coupled to one of the shafts of the epicyclic gearing, a sensor device which detects the speed of the internal c

Abstract: A steering drive for a steeled wheel of an industrial truck, particularly a rear wheel of a three-wheeled industrial truck, comprising a steering bolster supporting the rear wheel which is supported to be pivotable about a vertical steering axle inside the flame of the industrial truck, a steeling motor coaxial with the steering axle, a bearing assembly between the flame of the industrial truck and the bolster, and a steering transmission between the steering motor and bolster, wherein the steering transmission has a single-stage or multi-stage stepped planetary mechanism or planetary coupler mechanism which is coaxial with the steering axle and the bearing assembly for the bolster is arranged within the steering transmission.

Abstract: A wheel hub drive with drive motor and drive gear system for industrial trucks, with the following features: driving and output axis of the drive gear system, rotation axis of the wheel and driving axis of the drive motor are disposed coaxially; the drive gear system is a single step or multi step planetary stepping gear system or a two or more step planetary coupler mechanism gear system, two horizontally spaced wheel bearings are located inside the drive gear system, wherein, a first wheel bearing is disposed between a first bearing portion, connected with the wheel hub, and a frame-fixed planet carrier, and a second wheel bearing is disposed between the first bearing portion and a frame-fixed second bearing portion or the frame-fixed planet carrier.

Abstract: A pole for a hand pallet truck includes a pole bar linked to a support for a steerable wheel at its lower end and connected to a loop-shaped handle at a remaining end. The handle is centrally grappable at its near end and includes an operating device therein attached to a holding extension projecting into the handle. The holding extension is connectable to a lifting apparatus of the hand pallet truck via a traction and/or pushing element with operating levers being disposed on either side thereof The operating levers are pivotally mounted on the holding extension in a plane defined by the handle, each operating lever acting on a common displacement element connected to the traction or pushing element wherein pulling the operation levers from a neutral position away from the pole bar causes a lowering operating and pushing the operating lever's out of the neutral position towards the pole bar allows a lifting operation of the lifting apparatus.

Abstract: An industrial truck having a first and a second controller, each of which has an apparatus for a self-diagnosis of sensors and actuators of the controller, including one or more data lines between the first and the second controller for a transmission of operating and diagnostic data of the controllers wherein the operating and diagnostic data are transmitted on one or more interfaces with a common protocol, and a translation device for diagnostic data of the first controller for an interface of the second controller to which the diagnostic data of the second controller is applied, wherein the translation device translates the diagnostic data of the first controller into the same protocol in which the diagnostic data of the second controller is applied to the interface and both the interface and protocol are suited for exchanging diagnostic and operating data to communicate with additional controllers.

Abstract: A drive system for an industrial truck, comprising an internal combustion engine, a three-shaft epicyclic gearing adapted to be connected to the shaft of the internal combustion engine, a first electric motor which is mechanically coupled to the second shaft of the epicyclic gearing and is connected to an onboard network of the industrial truck, a change-speed gearing coupled to the third shaft of the epicyclic gearing, a summing gearbox coupled to the change-speed gearing the other input shaft of which is connected to a second electric motor which is electrically connected to the onboard network and the output shaft of which is coupled to at least one driven wheel of the industrial truck, a clutch (A) between the first and second shafts of the epicyclic gearing, at least one consumption unit for an additional function of the industrial truck that is coupled to one of the shafts of the epicyclic gearing, a sensor device which measures the speeds of the internal combustion engine, the first and second electric

Abstract: A drive system for an industrial truck, comprising an internal combustion engine, a three-shaft epicyclic gearing adapted to be connected to the shaft of the internal combustion engine, a first electric motor which is mechanically coupled to the second shaft of the epicyclic gearing and is connected to an onboard network of the industrial truck, a change-speed gearing coupled to the third shaft of the epicyclic gearing, a summing gearbox coupled to the change-speed gearing the other input shaft of which is connected to a second electric motor which is electrically connected to the onboard network and the output shaft of which is coupled to at least one driven wheel of the industrial truck, a clutch (A) between the first and second shafts of the epicyclic gearing, at least one consumption unit for an additional function of the industrial truck that is coupled to one of the shafts of the epicyclic gearing, a sensor device which measures the speeds of the internal combustion engine, the first and second electric

Abstract: A pole for a hand pallet truck comprising a pole bar linked to a support for a steerable wheel at its lower end and connected to a loop-shaped handle at the other end, the handle being centrally grippable at its rear end, an operating device within the handle, the operating device being attached to a holding extension projecting into the handle in prolongation of the bar, and being connectable to a lifting apparatus of the hand pallet truck via a traction and/or pushing element, wherein an operating lever is disposed on either side of the extension, the operating levers being pivotally mounted on the holding extension in a plane defined by the handle, wherein both operating levers act on a common displacement element connected to the traction or pushing element such that pulling the operating levers out of a neutral position away from the pole bar causes a lowering operation and pushing the operating levers out of the neutral position towards the pole bar allows a lifting operation of the lifting apparatus, a

Abstract: A motor vehicle power train with an engine, a transmission and a clutch includes a means to operate the transmission and/or clutch automatically through at least one electric actuator motor. The electric actuator motor, which acts on an input element of the transmission and/or clutch, comprises a brushless direct current motor.

Abstract: A gearbox for a motor vehicle having at least one input shaft and one output shaft and including a plurality of gears. The gears can be engaged and disengaged by an actuator. The gearbox further includes a parking brake that can be actuated by a gear change actuator and that serves to block rotation of the output shaft. The parking brake can be a gear and pawl arrangement in which the pawl is selectively engageable with the gear to prevent gear rotation, or it can be in the form of a shiftable jaw clutch.

Abstract: An industrial truck having a first and a second controller, each of which has an apparatus for a self-diagnosis of sensors and actuators of the controller, including one or more data lines between the first and the second controller for a transmission of operating and diagnostic data of the controllers wherein the operating and diagnostic data are transmitted on one or more interfaces with a common protocol, and a translation device for diagnostic data of the first controller for an interface of the second controller to which the diagnostic data of the second controller is applied, wherein the translation device translates the diagnostic data of the first controller into the same protocol in which the diagnostic data of the second controller is applied to the interface and both the interface and protocol are suited for exchanging diagnostic and operating data to communicate with additional controllers.

Abstract: A motor vehicle has a combustion engine as a primary drive source, generating an engine torque (302) which is transmitted along a power train containing an input shaft (320), a main clutch (308), a gear-shifting transmission (310) with gears (316, 318, 324, 326), shift clutches (328, 330), and an output shaft (322). The power train includes a superimposed additional transmission (312) with a planetary gear device (314), and a secondary drive source in the form of an electric motor/generator with a rotor (342) attached to the ring gear (332) of the planetary gear device (314) and a stator (344) attached to a stationary part of the vehicle. The secondary drive source generates an additional torque (346) to supplement or replace the engine torque (302) as needed, e.g., to eliminate gaps in vehicle traction during gear shifts or to propel the vehicle electrically in stop-and-go traffic. The secondary drive source may also be used in a generator mode, e.g., to recycle energy from decelerating or coasting downhill.

Abstract: A method for monitoring the operability of a mechanical power transmission path between an actuator of an automated transmission and a shift element of the transmission. The selection of the gear step to be engaged takes place via a control unit, and before the selection process a matching movement in the selection direction is performed with the shift element until a reference point has been detected by the control unit.

Abstract: A motor vehicle power train with an engine, a transmission and a clutch includes a means to operate the transmission and/or clutch automatically through at least one electric actuator motor. The electric actuator motor, which acts on an input element of the transmission and/or clutch, comprises a brushless direct current motor.

Abstract: The power train of a motor vehicle has an automated transmission and/or an automated clutch, at least one control unit and at least one actor receiving signals from the control unit and serving to control the operation of the automated constituent or constituents of the power train. A reestablishable connection can be interrupted in the event of a malfunctioning of the power train, such as exhaustion of the supply of electrical energy, defectiveness of the actor and/or defectiveness of the automated constituent or constituents and/or defectiveness of the motion transmitting connection or connections between the actor and the automated constituent or constituents. This renders it possible to set the transmission in neutral or into another gear and/or to select the condition of the clutch in such a way that the vehicle can advance to a selected destination under it own power or that it can be towed to such destination.

Abstract: An apparatus for controlling a drive system for an industrial truck having an internal combustion engine and a hydrostatic transmission wherein the hydrostatic transmission has a pump the delivery volume of which is variable and at least one hydraulic engine acting on at least one wheel of the industrial truck, comprising a first controller for the speed of the industrial truck in which a desired speed value compares to a actual value arriving from a speed transducer, further in which a speed controller determines a corresponding desired motive force and in which the signal for the motive force and the actual speed is provided to a characteristics stage in which at least one characteristic is stored which assigns approximately optimal rpm values to power values of the internal combustion engine and presets a corresponding desired-value signal for the number of revolutions of the internal combustion engine, and a second controller underlying the first controller having a desired-value and actual-value comparat

Abstract: A method for monitoring the operability of a mechanical power transmission path between an actuator of an automated transmission and a shift element of the transmission. The selection of the gear step to be engaged takes place via a control unit, and before the selection process a matching movement in the selection direction is performed with the shift element until a reference point has been detected by the control unit.

Abstract: An apparatus for controlling a drive system for an industrial truck having an internal combustion engine and a hydrostatic transmission wherein the hydrostatic transmission has a pump the delivery volume of which is variable and at least one hydraulic engine acting on at least one wheel of the industrial truck, comprising a first controller for the speed of the industrial truck in which a desired speed value compares to a actual value arriving from a speed transducer, further in which a speed controller determines a corresponding desired motive force and in which the signal for the motive force and the actual speed is provided to a characteristics stage in which at least one characteristic is stored which assigns approximately optimal rpm values to power values of the internal combustion engine and presets a corresponding desired-value signal for the number of revolutions of the internal combustion engine, and a second controller underlying the first controller having a desired-value and actual-value comparat