Millimeter Wave Radar
The millimeter wave radar is installed on the main bracket attached to the front bulkhead. The main bracket allows the radar angle to be adjusted ±3 degrees vertically by moving the main bracket adjusters.
The millimeter wave radar has these functions
Basic distance function
The millimeter wave radar radiates 76−77 GHz radar waves up to a range of 100 m (328 ft) aheads and 16 degrees horizontally and 3.9 degrees vertically, and it receives the reflected waves. In doing so, it can calculate the distance to the vehicle ahead, the relative speed (the difference in speed between the two vehicles), and its position this data is send to the adaptive cruise control (ACC) unit.
Aiming function
The millimeter wave radar has a horizontal auto-aiming function range of ±3 degrees and is directed by ACC unit.
Self-diagnosis function
The millimeter wave radar unit has a self-diagnostic function, it sends this information to the ACC unit.
Sensitivity-lowering detection function
When the detecting performance of the radar is deteriorated by dirt, dust, or other contaminants, it signals the condition malfunction to the ACC unit until the performance is restored.
Adjuster-misalignment detection function
When more than ±5 degrees of adjuster misalignment is detected while driving, it signals the condition to the ACC unit.