DYNAMIC RADAR CRUISE CONTROL SYSTEM > GENERAL

OUTLINE

The dynamic radar cruise control system has 2 cruise control modes: Constant Speed Control Mode, and Vehicle-to-vehicle Distance Control Mode.

The cruise control switch is used for switching between the 2 modes. The mode in which the cruise control system starts is the vehicle-to-vehicle distance control mode.

Mode
Outline
Constant Speed Control Mode
The constant speed control mode is the same as in the cruise control system. However, differences are as follows:
Cruise control system has a lower settable vehicle speed limit: approximately 40 km/h (25 mph) versus approximately 50 km/h (30 mph) for dynamic radar cruise control system (constant speed control mode).
Vehicle-to-vehicle Distance Control Mode
In vehicle-to-vehicle distance control mode, the system detects and recognizes a preceding vehicle. Thus, the system is able to maintain the proper vehicle-to-vehicle distance in accordance with the vehicle speed, and allows the vehicle to be driven under follow-up control.
The driver can operate the distance control switch on the steering wheel to select the vehicle-to-vehicle distance in 3 stages: long, middle, and short.
This mode consists mainly of 4 controls: constant speed control, deceleration control, follow-up control, and acceleration control.

In vehicle-to-vehicle distance control mode, the illustrations below show control examples while the driver's own vehicle is operating at 100 km/h (62 mph), and the vehicle ahead is operating at 80 km/h (50 mph).

Text in Illustration
*a	Constant Speed Control	*b	Deceleration Control
*c	Follow-up Control	*d	Acceleration Control
*e	100 km/h (62 mph)	*f	From 100 km/h (62 mph) to 80 km/h (50 mph)
*g	80 km/h (50 mph)	*h	From 80 km/h (50 mph) to 100 km/h (62 mph)

Mode	Outline
Constant Speed Control Mode	The constant speed control mode is the same as in the cruise control system. However, differences are as follows: Cruise control system has a lower settable vehicle speed limit: approximately 40 km/h (25 mph) versus approximately 50 km/h (30 mph) for dynamic radar cruise control system (constant speed control mode).
Vehicle-to-vehicle Distance Control Mode	In vehicle-to-vehicle distance control mode, the system detects and recognizes a preceding vehicle. Thus, the system is able to maintain the proper vehicle-to-vehicle distance in accordance with the vehicle speed, and allows the vehicle to be driven under follow-up control. The driver can operate the distance control switch on the steering wheel to select the vehicle-to-vehicle distance in 3 stages: long, middle, and short. This mode consists mainly of 4 controls: constant speed control, deceleration control, follow-up control, and acceleration control.