5 ARIADNE Design and Features
12 ARIADNE Knock Control
Cylinder individual parametrizing and analysis for finest reaction to knock events and best
compensation to the stochastic aspect of knocking combustion. This allows to adapt the
operation parameters (mainly spark timing, eventually also load and air-fuel ratio) for
each cylinder individually ensuring best cylinder individual performances and improving
engine emissions.
ARIADNE can either monitor all cylinders using separate individual sensors or monitor
several cylinders using the same sensor (low cost).
Optionally ARIADNE can be delivered in 2 designs: IP00 version with/without top hat
rail to be placed inside a cabinet near the engine (sensor connection over terminal strips)
or IP55 version for direct on-engine mounting (sensor connection over plug-in connect-
ors).
ARIADNE has been developed to fit in all possible gas engine control designs, from a
stand-alone unit to a fully integrated part of the gas engine management system, thus fea-
tured with a large range of I/O possibilities. With 1 analog input (0-5V / 4-20mA), 1 ana-
log output (0-5V / 4-20mA), 4 digital outputs, 2 CAN (Hzm-CAN, CANopen, Devicenet,
J1939 or other proprietary protocols) and 1 RS-485 (MOD-bus) serial interfaces, ARI-
ADNE will suit all applications.
For quick diagnostic, ARIADNE is equipped of a 2-digits display (7-segment LEDs), giv-
ing to customers or service engineers first indication on knock occurrences (light or heavy
knocking combustion detected, cylinder(s) concerned) or on other errors detected by the
unit, without connecting a PC.
Figure 6: ARIADNE quick diagnostic display
ARIADNE is full compatible with other HEINZMANN products like speed and load con-
trollers, air-fuel ratio control units, ignition modules, generator management systems and
can communicate with these over CAN-bus (Hzm-CAN). For flexible and extended con-
figuration and visualization of input and output data, ARIADNE integrates a serial inter-
face to DcDesk 2000, HEINZMANN’s Windows
®
user interface programme, widely used
on all other HEINZMANN digital products.