Abstract: An actuating unit for use on an electromechanically actuated disc brake for automotive vehicles including a drive unit or an electric motor, an actuating element for actuating one of two friction linings displaceably arranged in a brake caliper, and a first and a second reducing gear. The first reducing gear is comprised as a ball screw, while a planetary gear is used as the second reducing gear. To increase the efficiency, the present invention discloses a coupling shaft used to transmit forces from the planet cage of the planetary gear to the threaded spindle of the ball screw. The ends of the coupling shaft form universal joints with the planet cage and the threaded spindle.

Abstract: The present invention discloses an actuating unit for use on an electromechanically actuated disc brake for automotive vehicles which is basically composed of a drive unit (1) or an electric motor (11), an actuating element (7) by means of which one (4) of two friction linings (4, 5) displaceably arranged in a brake caliper is moved into engagement with a brake disc (6), and a first and a second reducing gear (2, 3). The first reducing gear (2) is provided as a ball screw (16-18), while a planetary gear (30-34) is used as the second reducing gear (16-18).

Abstract: In a heating and/or air-conditioning system for motor vehicles with a temperature sensor in the head space and a temperature sensor in the leg space as component parts of an interior space temperature regulating installation, the temperature sensors are so connected to the regulating installation in dependence on the outside temperature that at low, respectively, high outside temperatures, the influence of the leg space, respectively, of the head space temperature sensor on the regulating installation dominates.