Infiniti F50. Manual — part 10
DESCRIPTION
ACS-33
[ICC]
C
D
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F
G
H
I
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A
B
ACS
DESCRIPTION
PFP:00000
Outline
EKS003OO
The Intelligent Cruise Control (ICC) system automatically maintains a selected distance from the vehicle
ahead according to that vehicle's speed, or at the set speed, if the road ahead is clear.
With ICC, the same speed as other vehicles can be maintained without the constant need to adjust the operat-
ing speed as with a normal cruise control system.
The system is intended to enhance the operation of the vehicle when following another vehicle in the same
lane and direction.
If the distance sensor detects a slower moving vehicle ahead, the system will reduce speed so that the vehicle
ahead can be followed at the selected distance.
The system automatically controls the throttle and applies the brakes (up to 25% of vehicle braking power) if
necessary.
The detection range of the sensor is approximately 390 ft (120 m) ahead.
Refer to Owner's Manual for Intelligent Cruise Control System operating instructions.
System Diagram
EKS003OP
Components Description
EKS003OQ
SKIA1202E
Component
Description
ICC unit
Operates ASCD actuator and brake booster based on that sensor signals and CAN communi-
cation data, then controls vehicle distance.
ICC sensor
Irradiate laser beam, and receives reflected laser beam to measure distance from preceding
vehicle.
ECM
Transmits throttle angle signal to ICC unit.
Brake pressure sensor
Detects fluid pressure in master cylinder.
ASCD actuator
Based on command from ICC unit, adjust throttle valve angle with ASCD actuator, using vac-
uum emerged from vacuum pump.
Brake booster
Adjusts brake fluid pressure, based on command from ICC unit.
ACS-34
[ICC]
DESCRIPTION
CAN Communication
EKS003OR
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tric control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
SYSTEM DIAGRAM
INPUT/OUT SIGNAL CHART
T: Transmit R: Receive
SKIA1241E
Signals
TCM
Combina-
tion meter
Steering
wheel
angle
sensor
ICC unit
ICC sen-
sor
VDC /
TCS /
ABS con-
trol unit
ECM
ICC system display signal
R
T
ICC sensor signal
R
T
Engine speed signal
R
R
R
R
T
Engine coolant temperature signal
R
R
T
Accelerator pedal position signal
R
R
T
Engine torque signal
R
R
T
Battery voltage signal
R
T
Closed throttle position signal
R
R
T
Lock-up prohibition signal
R
T
Torque-down permission signal
R
T
Fuel consumption monitor signal
R
T
Lock-up signal
T
R
Hard deceleration signal
T
R
Torque-down signal
T
R
Power mode indicator signal
T
R
A/T fluid temperature warning lamp signal
T
R
R
Current gear position signal
T
R
R
R
R
T
Next gear position signal
T
R
R
Shift change signal
T
R
R
Shift pattern signal
T
R
R
VDC system control signal
T
R
VDC operation signal
R
T
R
Stop lamp switch signal
R
T
Steering wheel angle sensor signal
R
T
R
R
DESCRIPTION
ACS-35
[ICC]
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A
B
ACS
Switch Operation
EKS003OS
The system is operated by a master ON/OFF switch and four control
switches, all mounted on the steering wheel
ICC System Display
EKS003OT
Air conditioner switch signal
T
R
Headlamp switch signal
T
R
Rear window defogger switch signal
T
R
OD cancel switch signal
R
T
R
Brake switch signal
R
T
Power mode switch signal
R
T
Vehicle speed signal
R
R
R
T
R
T
R
T
R
R
Signals
TCM
Combina-
tion meter
Steering
wheel
angle
sensor
ICC unit
ICC sen-
sor
VDC /
TCS /
ABS con-
trol unit
ECM
SKIA1203E
No.
Switch name
Description
1
ON/OFF switch
Master switch to activate the system
2
COAST/SET switch
Sets desired cruise speed, reduces speed incrementally
3
ACCELERATE/RESUME switch
Resumes set speed or increases speed incrementally
4
CANCEL switch
Deactivates system without erasing set speed
5
DISTANCE switch
Changes the following distance from: Long, Middle, Short
SKIA1204E
No.
Component
Description
1
Intelligent cruise control system warning
lamp (Orange)
The light comes on if there is a malfunction in the ICC system.
2
Vehicle ahead detection indicator
Indicates whether it detects a vehicle ahead.
ACS-36
[ICC]
DESCRIPTION
3
Set distance indicator
Display the selected distance between vehicles set with the DISTANCE
switch.
4
Own vehicle indicator
Indicates the base vehicle.
5
ON/OFF switch indicator lamp (White)
Indicates that the ON/OFF switch is ON.
6
Set vehicle speed indicator
Indicates the set vehicle speed.
No.
Component
Description
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