Dual concentric slave cylinder
Note the Dual Clutch works with mineral oil as it is in the transmission.
The dual concentric slave cylinder works like a conventional concentric slave cylinder, but with two concentric pistons. Independently of each other, the pistons actuate each one of the radial clutches, via the extremely space-saving bearing design. Unlike the standard clutch, actuation creates disengagement of driveline, i.e. the clutch is closed, in order to transfer torque.
Actuation is electrohydraulic, via a power pack. The volume flow via the pressure at the respective piston is controlled by valves.
The piston position is determined by two extremely small, electrical, and thus wear-free displacement sensors, which work reliably and independently of each other at temperatures from -40°C to +180°C.