CONTROL SYSTEM [13B-MSP]
01-40–12
2009 Mazda RX-8 Serv
i
ce H
i
ghl
i
ghts (3452–1U–08C)
Rev
i
sed 11/2008 (Ref
.
No
.
R321/08)
Funct
i
on L
i
st
Veh
i
cle Speed L
i
m
i
ter (AT)
x
When the actual veh
i
cle speed exceeds 200 km/h {124 mph}, the veh
i
cle speed l
i
m
i
ter controls the throttle
valve actuator so that veh
i
cle speed
i
s ma
i
nta
i
ned at 200 km/h {124 mph} or less
.
It also reduces shock when
the veh
i
cle speed reaches 200 km/h {124 mph} and prevents rap
i
d temperature
i
ncrease of the catalyt
i
c
converter dur
i
ng h
i
gh speed
.
End Of S
i
e
SEQUENTIAL DYNAMIC AIR INTAKE SYSTEM (S-DAIS) CONTROL OUTLINE [13B-MSP]
id0140g1304000
x
Operates the SSV soleno
i
d valve, the APV motor, the VDI soleno
i
d valve (13B-MSP (h
i
gh power)), and the
VFAD soleno
i
d valve (w
i
th VFAD) accord
i
ng to the eng
i
ne speed range
.
As a result, torque and output at all
eng
i
ne speed ranges have been
i
mproved
.
End Of S
i
e
SEQUENTIAL DYNAMIC AIR INTAKE SYSTEM (S-DAIS) CONTROL BLOCK DIAGRAM [13B-MSP]
id0140g1304100
x
The PCM determ
i
nes the eng
i
ne cond
i
t
i
ons based on each
i
nput s
i
gnal and sends s
i
gnals to the SSV soleno
i
d
valve, the APV motor, the VDI soleno
i
d valve (13B-MSP (h
i
gh power)), and the VFAD soleno
i
d valve (w
i
th
VFAD)
.
Funct
i
on
Contents
Accelerat
i
ng
x
When any of the follow
i
ng cond
i
t
i
ons are met wh
i
le dr
i
v
i
ng
i
n cru
i
se control and when the RES (+)
sw
i
tch
i
s cont
i
nuously pressed, the PCM gradually
i
ncreases the set veh
i
cle speed
.
—
Except dur
i
ng resume operat
i
on
—
The RES (+) sw
i
tch
i
s on one t
i
me or more dur
i
ng resume operat
i
on
.
Coast
i
ng
x
When the SET (-) sw
i
tch
i
s cont
i
nuously pressed, the PCM gradually decreases the set veh
i
cle
speed
.
Resume
x
When the RES (+) sw
i
tch s
i
gnal
i
s
i
nput to the PCM dur
i
ng regular dr
i
v
i
ng (cru
i
se control
i
s
stopped) and the prev
i
ously set veh
i
cle speed
i
s stored
i
n the PCM, the PCM sets the set veh
i
cle
speed to the prev
i
ously set veh
i
cle speed and beg
i
ns control
.
Tap down
x
When all of the follow
i
ng cond
i
t
i
ons are met wh
i
le dr
i
v
i
ng
i
n cru
i
se control, the PCM decreases the
set veh
i
cle speed by 1
.
6 km/h {0
.
99 mph} and controls the throttle valve actuator
.
—
Dur
i
ng cru
i
se control
—
RES (+) sw
i
tch off
—
The RES (+) sw
i
tch sw
i
tches from off to on
—
When actual veh
i
cle speed
i
s lower (set veh
i
cle speed
2 km/h {-1
.
2 mph})
Tap-up
x
When all of the follow
i
ng cond
i
t
i
ons are met, the PCM
i
ncreases the set veh
i
cle speed by 1
.
6 km/h
{0
.
99 mph} and controls the throttle valve actuator so that the veh
i
cle speed
i
s close to the set
veh
i
cle speed
.
—
Dur
i
ng cru
i
se control
—
The RES (+) sw
i
tch sw
i
tches from off to on
Downsh
i
ft (AT)
x
When the follow
i
ng cond
i
t
i
ons are met, a downsh
i
ft s
i
gnal
i
s sent to the TCM v
i
a CAN
.
—
RES (+) sw
i
tch on
—
Target veh
i
cle accelerat
i
on
i
s not reached
PCM
ECT SENSOR
MAF SENSOR
ECCENTRIC SHAFT POSITION
SENSOR
APV POSITION SENSOR
NO
.
1, NO
.
2
SSV SOLENOID VALVE
APV MOTOR
VDI SOLENOID VALVE
(13B-MSP(HIGH POWER))
VFAD SOLENOID VALVE
(WITH FVAD)
SSV SWITCH
IGNITION SWITCH
ar8uun00000339
Содержание 2009 RX-8
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