<s>
Trionic	B-General_Concept
is	O
an	O
engine	B-Device
management	I-Device
system	I-Device
developed	O
by	O
Saab	O
Automobile	O
.	O
</s>
<s>
It	O
consists	O
of	O
an	O
engine	B-Device
control	I-Device
unit	I-Device
(	O
ECU	O
)	O
that	O
controls	O
3	O
engine	O
aspects	O
:	O
</s>
<s>
The	O
numerical	O
prefix	O
'	O
tri-	O
'	O
in	O
Trionic	B-General_Concept
.	O
</s>
<s>
'	O
Ion	O
 '	O
comes	O
from	O
the	O
fact	O
that	O
it	O
uses	O
ion	O
current	O
,	O
measured	O
by	O
the	O
spark	O
plugs	O
between	O
combustion	O
events	O
which	O
acts	O
as	O
a	O
sensor	B-Algorithm
for	O
knock	O
,	O
misfire	O
and	O
synchronization	O
detection	O
.	O
</s>
<s>
Using	O
the	O
value	O
and	O
wave	O
shape	O
of	O
the	O
current	O
,	O
after	O
the	O
actual	O
spark	O
event	O
,	O
the	O
quality	O
of	O
the	O
actual	O
combustion	O
process	O
is	O
determined	O
,	O
thus	O
allowing	O
the	O
engine	B-Device
control	I-Device
unit	I-Device
to	O
optimize	O
the	O
timing	O
of	O
the	O
spark	O
for	O
the	O
best	O
engine	O
performance	O
while	O
keeping	O
emissions	O
low	O
on	O
a	O
much	O
wider	O
range	O
of	O
rpms	O
.	O
</s>
<s>
Since	O
Trionic	B-General_Concept
7	I-General_Concept
,	O
the	O
throttle	O
and	O
thereby	O
the	O
air	O
charge	O
has	O
also	O
been	O
electronically	O
controlled	O
,	O
but	O
the	O
name	O
"	O
Trionic	B-General_Concept
"	O
was	O
not	O
changed	O
accordingly	O
as	O
it	O
was	O
determined	O
that	O
the	O
name	O
had	O
value	O
.	O
</s>
<s>
The	O
SAAB	O
Trionic	B-General_Concept
engine	B-Device
management	I-Device
system	I-Device
was	O
developed	O
for	O
the	O
9000	O
and	O
'	O
New	O
Generation	O
 '	O
900	O
turbocharged	O
engines	O
.	O
</s>
<s>
The	O
engine	B-Device
management	I-Device
system	I-Device
was	O
first	O
utilized	O
on	O
the	O
Saab	O
B204	O
and	O
B234	O
"	O
H	O
"	O
engines	O
to	O
monitor	O
and	O
control	O
the	O
fuel	O
injection	O
system	O
and	O
turbocharging	O
pressure	O
control	O
.	O
</s>
<s>
The	O
Trionic	B-General_Concept
5.2	O
and	O
5.5	O
systems	O
utilized	O
the	O
manifold	B-Algorithm
absolute	I-Algorithm
pressure	I-Algorithm
(	O
MAP	O
)	O
sensor	B-Algorithm
and	O
the	O
intake	O
air	O
charge	O
temperature	O
sensor	B-Algorithm
to	O
calculate	O
the	O
fuel	O
injection	O
curves	O
,	O
while	O
the	O
Trionic	B-General_Concept
7	I-General_Concept
and	O
8	O
systems	O
are	O
mass	O
air	O
flow	O
type	O
.	O
</s>
<s>
Generally	O
speaking	O
,	O
engine	O
tuners	O
prefer	O
the	O
easier	O
to	O
work	O
with	O
Trionic	B-General_Concept
5	O
systems	O
over	O
the	O
Trionic	B-General_Concept
7	I-General_Concept
and	O
8	O
which	O
are	O
more	O
restrictive	O
in	O
what	O
can	O
be	O
manipulated	O
within	O
the	O
software	O
.	O
</s>
<s>
The	O
intellectual	O
rights	O
to	O
the	O
Trionic	B-General_Concept
5	O
and	O
7	O
systems	O
were	O
sold	O
in	O
2009	O
to	O
BAIC	O
,	O
along	O
with	O
the	O
Saab	O
H	O
Engine	O
that	O
it	O
was	O
designed	O
for	O
,	O
as	O
part	O
of	O
Saab	O
's	O
restructuring	O
and	O
transfer	O
of	O
ownership	O
of	O
General	O
Motors	O
to	O
Spyker	O
.	O
</s>
<s>
Trionic	B-General_Concept
T5.2Trionic	O
T5.5Trionic	O
7Trionic	O
8Released1993199419982003ProcessorMC	O
68332MC	O
68332MC	O
YQQCUMC	O
68377User	O
ROM128	O
kB256	O
kB512	O
kB2048	O
kBFeaturesTCS/ETC	O
OptionalTCS/ETC	O
Optional	O
/intake	O
heatplate	O
Optional98-99	O
Does	O
not	O
use	O
TCS	O
on	O
four	O
cylinder	O
models	O
,	O
</s>
<s>
Trionic	B-General_Concept
systems	O
are	O
shortened	O
to	O
indicate	O
their	O
version	O
;	O
for	O
e.g.	O
</s>
<s>
SAAB	O
Models	O
Utilizing	O
Trionic	B-General_Concept
Engine	B-Device
Management	I-Device
System	I-Device
:	O
</s>
<s>
There	O
are	O
communities	O
working	O
on	O
reverse	O
engineering	O
electronic	B-Device
engine	I-Device
management	I-Device
systems	I-Device
(	O
EEMS	O
)	O
and	O
particularly	O
the	O
Trionic	B-General_Concept
EEMS	O
.	O
</s>
<s>
The	O
number	O
of	O
cars	O
with	O
such	O
complex	O
requirements	O
as	O
Nira	O
or	O
MoTeC	O
is	O
very	O
low	O
so	O
a	O
full	O
aftermarket	O
engine	B-Device
management	I-Device
system	I-Device
is	O
generally	O
used	O
in	O
these	O
cases	O
.	O
</s>
