Group
28
Igni
t
ion systems
Design and function - Compensation functions
a
b
·
••
,
,
,
I
I
,,
,,
,,
,
I
_ _
r
'47
Timing compensation applied
by
different ignition systems to correct knock
Fig. 3:
=
basic timing as
computed
a
=
max
.
knock-controlled
retardation
b
knock
retardation
step
c
re-advance
step
d
re
-
advance
interval
The following
is
a summary
of
the
compensation values applied
by the var
io
us
systems
in
the event of
knock
:
EZ-l02K:
EZ-l17K:
Max
.
knock-controlled retardation:
Knock retardation
step:
Re-advance
step:
Re-advance
interval:
Max
.
retardation:
Knock retardation
step:
Re
-
advance
step:
Re-advance
interval:
0
.
35
'
number of engine
revolutions depending
on speed
(B230F);
{
B230FT)
0.37
'
Specified
number
of engine
revolutions depending
on speed
Re-advance
step:
Re-advance
interval:
revolutions depending
on speed
EZ-118K:
lvalues
for B230K, 1985
-8
6
;
8230E and B200E respectivelyl
Max
.
knock
-c
ontrolled
retardation:
Knock
retardation step:
(depending
on speed!. 2.8
",
0
.3
5
"
in
all
cases
Specified
number of engine
EZ-
1
15K:
EZ-116K:
Rex-I
:
Max
.
knock-controlled
retardation:
Knock retardation
step
:
Re-advance
step:
Re-advance
interval:
Max
.
knock-controlled retardation
:
Knock re
t
ardation
step:
Re-advance
step
:
Re-advance
interval:
Max
.
knock-eontrolled
retardation:
Knock retardation step:
Re
-
advance step
:
Re-advance
interval:
11-15
"
depending
on
variant
3
"
Specified
number
of engine
revolutions depending on
speed
2.6
"
at n
<
4895 r
/
min and
2.3
"
at
n
>
4895 rfmin
0.375"
Specified
number
of engine
revolut
io
ns depending
on speed
-3
"
at n
>
4895 r
/min
,
"
Specified
number of engine
revolutions
depending on speed
33
