Designing a model of a full control module for a camless engine employing rotary valves

A camless engine using rotary valves has been proposed before and found feasible. In this paper, a single controller doing the primary engine functions of sparking, fuelling and valve events control is proposed. With no camshaft, only a crankshaft (optical) sensor is required. The controller has also the advantage of turning the engine in either direction, removing the need for a reverse gear. Full control over valve events, together with crank motion independent sparking, removes the need for a throttle valve and a mechanical starter. With the valve turning freely, no feedback sensing is necessary. The proposed controller has been designed, successfully compiled using ALTERA´s MAX PLUS II design environment and programmed into an FPGA device, the EPM7064LC68-7.