Adaptive Cruise Control (ACC) System Description
Function
The ACC system with Low Speed Follow (LSF) uses the multipurpose camera and the millimeter radar to calculate and adjust the vehicle speed to maintain the appropriate distance between your vehicle and the leading vehicle ahead based on your vehicle speed and driving conditions. When another vehicle cuts in between your vehicle and the leading vehicle, the system switches the target vehicle to a new vehicle using the image information (vehicle and lane information) from the multipurpose camera. When the leading vehicle changes the lane or goes out of the detection range, the vehicle drives at the preset vehicle speed until detecting a new target vehicle. ACC system works with the cruise control system to adjust the vehicle speed.

The cruise control mode can be entered by operating the distance switch while the ACC is working.

Control Block Diagram
Operation Conditions
Control vehicle speed
Following function
0 - 90 mph (0 - 145 km/h)
Set speed range
25 - 90 mph (40 - 145 km/h)
Maximum acceleration
0.2 G
Maximum deceleration
0.4 G (0.3 G for all speeds from 37 mph (60 km/h) up)
Left/right detection angle of millimeter wave radar
±42.6 degrees
Up/down detection angle of millimeter wave radar
?6 to ?11.5 degrees
Road inclination
Less than 6%
Detection object
Vehicle only
Basic Controls of ACC and Low Speed Follow (LSF)
The ACC system uses the millimeter wave radar to detect the leading vehicle, determines the target vehicle and measures the distance to the target vehicle and its vehicle speed. (the system also uses the multipurpose camera as needed to determine the target vehicle based on the lane and vehicle position information)
When there is no leading vehicle, your vehicle drives at the preset speed. When there is a leading vehicle, your vehicle follows the vehicle and drives within the preset speed.
When the ACC control stop factor occurs during the LSF operation

Determination of the target vehicle