DYNAMIC RADAR CRUISE CONTROL SYSTEM

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 vehicle-to-vehicle distance control mode.

Mode	Outline
Constant Speed Control Mode	The constant speed control mode is the same as a conventional cruise control system. However, differences are as follows: Set speed: 40 km/h (25 mph) → 50 km/h (32 mph)
Vehicle-to-vehicle Distance Control Mode	In vehicle-to-vehicle distance control mode, the system recognizes and determines the lane in which the driver's own vehicle and the vehicle ahead are traveling. 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 three stages: long, middle, and short. This mode consists mainly of 4 controls: constant speed control, deceleration control, follow-up control, and acceleration control. Throttle control and brake control achieve smooth deceleration.

Mode

Outline

Constant Speed Control Mode

The constant speed control mode is the same as a conventional cruise control system. However, differences are as follows:

Set speed: 40 km/h (25 mph) → 50 km/h (32 mph)

Vehicle-to-vehicle Distance Control Mode

In vehicle-to-vehicle distance control mode, the system recognizes and determines the lane in which the driver's own vehicle and the vehicle ahead are traveling. 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 three stages: long, middle, and short.
This mode consists mainly of 4 controls: constant speed control, deceleration control, follow-up control, and acceleration control.
Throttle control and brake control achieve smooth deceleration.

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).

*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)