Electromechanical switchable rocker arm (eRocker)
Cylinder Deactivation (CDA) with Cam Profile Switching (CPS)
CDA on intake and exhaust side
CPS on the exhaust sideA CPS and CDA function on intake and exhaust side
The innovative valve train system is based on a two-part rocker arm design. This comprises a cam-side rocker arm and a valve-side rocker arm, both mounted on one axle as one unit. For a reliable and robust actuation of the locking mechanism, electric miniature switching solenoids are arranged between the two-part rocker arms of the exhaust and intake valve actuation.
The electromechanical actuation allows very fast and reliable switching times, especially at low temperatures and engine start.