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

Author

Zibani, Ishmael ; Chuma, Joseph ; Marumo, Rapelang

Author_Institution

Dept. of Electr. Eng., Univ. of Botswana, Gaborone, Botswana

fYear

2013

fDate

9-12 Sept. 2013

Firstpage

1

Lastpage

5

Abstract

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.

Keywords

camshafts; control system synthesis; engines; gears; microcontrollers; motion control; valves; ALTERA MAX PLUS II design; EPM7064LC68-7; FPGA device; camless engine; control design; crank motion control; crankshaft optical sensor; design; primary engine functions; reverse gear; rotary valves; throttle valve; Coils; Engines; Fuels; Pistons; Sparks; Timing; Valves; camless; camshaft; controller; crankshaft; valve events;

fLanguage

English

Publisher

ieee

Conference_Titel

AFRICON, 2013

Conference_Location

Pointe-Aux-Piments

ISSN

2153-0025

Print_ISBN

978-1-4673-5940-5

Type

conf

DOI

10.1109/AFRCON.2013.6757724

Filename

6757724