Abstract: Device for selective climate control in vehicle cabins having a first air-vent duct (18) and a second air-vent duct (22) on respective sides or different zones in a vehicle cabin. The duct temperature on each side is measured and the duct adjustment is regulated by inner feedback control circuits. The cabin temperature (Tc1, Tc2 resp.) on both sides is measured, preferably at approximately head level, and fed to outer control circuits which determine the desired duct temperature as the deviation between the desired cabin temperatures (Tcs1, Tcs2 resp.) set by means of separate control knobs (38, 44) and the measured cabin temperatures (Tc1, Tc2 resp.). Desired duct temperature signals (Dts1, Dts2 resp.) are connected as input signals to respective inner control circuits.

Abstract: A motor vehicle clutch is particularly suited for a mechanical multiple-speed automatic transmission. The clutch comprises a pair of alternatingly engageable clutch discs (5,7) mounted on a pair of concentric shafts (8,10). In addition to a centrifugal arrangement (29,30) for engagement when starting, the clutch comprises a hydraulic control system with a piston cylinder device (20) and two three-way magnetic valves (51,52), one (51) of which is capable of presure regulation and the other (52) has merely an on-off function.

Abstract: A device for motor vehicle braking systems, which is designed to facilitate starting on hills. The device comprises a piston cylinder device, controlled by an electronic unit which is coupled to a pneumatic or hydraulic pressure system and acts on the brake pedal. Signals are fed to the electronic unit from a sensor for vehicle speed and direction and from a pair of sensors sensing brake pedal position and gas pedal position. When the signals from the first-mentioned sensor indicate that the vehicle has been brought to a stop after movement in a direction differing from the direction selected via the gear selector and indicated by sensor, at the same time as the two other sensors signal that the brake pedal has been depressed and the gas pedal has been released, the piston cylinder device is activated to brake the vehicle. If the accelerator is then depressed the device is deactivated and the brake is released.