Abstract: A drive arrangement of a working machine includes a differential gear, a first drive unit coupled to a first element of the differential gear, a working machine coupled to a second element of the differential gear, and a second drive unit coupled to a third element of the differential gear. The speed of the second drive unit can be superimposed on a speed that is dependent on the speed of the first drive unit, whereby the first or second drive unit can be driven at a variably adjustable speed. When a switching element is closed, an auxiliary gear stage is load-transmitting and speeds of the first and second drive units are coupled as a function of at least one transmission ratio of the auxiliary gear stage, and when the switching element is open, the auxiliary gear stage is load-free and speeds of the first and second drive units are decoupled.

Abstract: A drive system has at least one drive unit each drive unit including a central shaft and a central gear connected to the central shaft such that the central gear rotates at a speed of the central shaft. Two to four decentralized gears are distributed around the circumference of the central gear and mesh with the central gear such that the rotational speed of the central gear is at least 0.5 times the rotational speed of the decentralized gears. A plurality of electric machines are operable at a speed of at least 4,000 rpm, and each decentralized gear wheel is coupled directly and without transmission ratio to a single electric machine or to two electric machines, respectively.

Abstract: A drive system has at least two drive units each including a central shaft, a central gear wheel connected to the central shaft such that the central gear wheel rotates at a speed of the central shaft, and two to four decentralized gear wheels distributed over the circumference of the central gear wheel and meshing with the central gear wheel such that the speed of the central gear wheel is at least 0.5 times the speed of the decentralized gear wheels. The rotational speed of the central gear wheel is at least 0.5 times the rotational speed of the decentralized gear wheels. Each decentralized gear wheel is coupled directly and without transmission to a single electric machine, or to two electric machines of a plurality of electric machines. The central shafts of the drive units are coupled to form a series connection of the drive units.

Abstract: A drive arrangement of a working machine to be driven at a variably adjustable speed includes a differential gear, a first drive unit coupled to a first element of the differential gear, a working machine coupled to a second element of the differential gear, and a second drive unit coupled to a third element of the differential gear. The speed of the second drive unit can be superimposed on a speed dependent on the speed of the first drive unit, whereby the first or second drive unit can be driven at a variably adjustable speed.

Abstract: A transmission for a drive assembly for driving a working machine at a variable speed of rotation having: a first planet gear set to which a first drive unit can be coupled and a second planet gear set which the working machine can be coupled. The first planet gear set and the second planet gear set each having planet gears which are arranged on at least two common planet shafts which are mounted in a planet carrier. The planet carrier is rotatably mounted in a transmission housing and can be driven by a second drive unit. A torque on the planet carrier can be braced against the transmission housing via a brake or locking mechanism or clutch.

Abstract: A transmission for a drive assembly for driving a working machine at a variable speed of rotation having: a first planet gear set to which a first drive unit can be coupled and a second planet gear set which the working machine can be coupled. The first planet gear set and the second planet gear set each having planet gears which are arranged on at least two common planet shafts which are mounted in a planet carrier. The planet carrier is rotatably mounted in a transmission housing and can be driven by a second drive unit. A torque on the planet carrier can be braced against the transmission housing via a brake or locking mechanism or clutch.

Abstract: A gearbox for a drive arrangement of a machine for driving the machine with variably adjustable rotational speed, with a first planet gear set, to which a first drive unit can be coupled and a second planet gear set, to which the machine can be coupled. The first planet gear set and the second planet gear set each comprise planet gears arranged on at least two common planet shafts which are mounted in a planet carrier. The planet carrier is rotatably mounted in a gearbox housing and can be driven by a second drive unit.

Abstract: A gearbox for a drive arrangement of a machine for driving the machine with variably adjustable rotational speed, with a first planet gear set, to which a first drive unit can be coupled and a second planet gear set, to which the machine can be coupled. The first planet gear set and the second planet gear set each comprise planet gears arranged on at least two common planet shafts which are mounted in a planet carrier. The planet carrier is rotatably mounted in a gearbox housing and can be driven by a second drive unit.

Abstract: A device for ventilating a motor vehicle is proposed, in which an air-quality signal (11) indicating reduced air quality, and an opening signal (22) indicating an opened state of a component actuated by an actuating drive (19, 20), or an opening request, are transmitted to an AND operation (15) whose output signal (24) is transmitted to a warning device (25, 26).

Abstract: A device for ventilating a motor vehicle is proposed, in which an air-quality signal (11) indicating reduced air quality, and an opening signal (22) indicating an opened state of a component actuated by an actuating drive (19, 20), or an opening request, are transmitted to an AND operation (15) whose output signal (24) is transmitted to a warning device (25, 26).