Abstract: A retractable leash device (10, 53) for rolling up and unrolling a leash (13), especially for leading an animal, includes a leash roller (22) mounted rotatably on a carrier and a resetting device to reset the leash into a rolled-up position, in which the leash is wound up onto a leash roller. A blocking feature blocks the unrolling of the leash. A transmission is coupled to the leash roller and brings about blocking when a predetermined leash length is unrolled from leash roller. A simple configuration with high operating reliability and low wear is provided with the transmission having a first transmission element arranged rotatably on the carrier and a second transmission element arranged nonrotatably on the carrier. The first transmission element and the second transmission element have an outer circumference and an inner circumference associated with one another, which mesh with one another at least in an active state.

Abstract: A retractable leash device (10, 53) for rolling up and unrolling a leash (13), especially for leading an animal, includes a leash roller (22) mounted rotatably on a carrier and a resetting device to reset the leash into a rolled-up position, in which the leash is wound up onto a leash roller. A blocking feature blocks the unrolling of the leash. A transmission is coupled to the leash roller and brings about blocking when a predetermined leash length is unrolled from leash roller. A simple configuration with high operating reliability and low wear is provided with the transmission having a first transmission element arranged rotatably on the carrier and a second transmission element arranged nonrotatably on the carrier. The first transmission element and the second transmission element have an outer circumference and an inner circumference associated with one another, which mesh with one another at least in an active state.

Abstract: A device (10, 36, 39) for rolling up and unrolling a leash, especially for leading an animal, includes a leash roller (11) and a blocking device (22), which has an actuating element (37) and a locking element (26). The leash roller (11) can be actuated by the blocking device (22) for blocking an unrolling motion of the leash roller (11). The actuating element (37) can be actuated by an actuation motion. A locking motion of the locking element (26) can be triggered for blocking the unrolling motion of the leash roller (11) based on the actuation motion of the actuating element (37). Generation of a disturbing noise, with the blocking device, is avoided by the actuation motion of the device (10, 36, 39) being transferred by a transfer device (23) into a locking motion of the locking element (26) that is greater than the actuation motion.

Abstract: A method and a control device operate a three-phase brushless direct current motor with phase windings that are fed by an inverter connected to a voltage source having a high potential and a low potential. The semiconductor switches of the inverter are arranged in a bridge circuit and are controlled such that current always flows through two phase windings during motor operation. The motor is operated with normal commutation when the rotational speed is greater than or equal to a minimum rotational speed, wherein the angles are shifted by 60°. During start-up operation, up to the minimum rotational speed, a high-potential-side commutation angle of a phase winding is shifted toward a low-potential-side commutation angle of the phase winding by an angle greater than 0° and less than or equal to 60° with respect to the normal commutation.

Abstract: A device (10, 36, 39) for rolling up and unrolling a leash, especially for leading an animal, includes a leash roller (11) and a blocking device (22), which has an actuating element (37) and a locking element (26). The leash roller (11) can be actuated by the blocking device (22) for blocking an unrolling motion of the leash roller (11). The actuating element (37) can be actuated by an actuation motion. A locking motion of the locking element (26) can be triggered for blocking the unrolling motion of the leash roller (11) based on the actuation motion of the actuating element (37). Generation of a disturbing noise, with the blocking device, is avoided by the actuation motion of the device (10, 36, 39) being transferred by a transfer device (23) into a locking motion of the locking element (26) that is greater than the actuation motion.

Abstract: To avoid damaging the electrical braking system of a motor vehicle due to driving with an applied parking brake, the parking brake is automatically released, if the speed of the motor vehicle exceeds a prescribed minimum value, and the drive unit of the motor vehicle is driven in a specific operating state, and at least one operating element (e.g. gas pedal, gear shift lever, clutch pedal, safety belt, etc.) of the motor vehicle has been actuated by the driver of the motor vehicle. Sensor signals of sensors that sense the state of the above parameters are subjected to a plausibility check.

Abstract: Proposed is a simple and cost-effective method that enables a safe operation of a motor vehicle comprising an electrical braking system with a parking brake. During the parking of the motor vehicle, measuring processes are carried out in a certain time interval spacing, in which measured values of at least one vehicle-specific characteristic parameter are determined. In connection with the measured values determined in the measuring processes, a current desired value for prescribing the brake force for the parking brake is determined.

Abstract: 1. Method for operating a motor-driven vehicle.

Abstract: 2.1 Proposed is a simple and cost-effective method that enables a safe operation of a motor vehicle comprising an electrical braking system with a parking brake.