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

Mode	Outline
Constant Speed Control Mode	Constant speed control mode is the same as in the conventional (non-dynamic radar type) cruise control system. However, differences are as follows: The conventional cruise control system has a lower settable vehicle speed limit: approximately 40 km/h (25 mph) versus approximately 50 km/h (32 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 levels: long, middle, and short. This mode consists mainly of 4 controls: constant speed control, deceleration control, follow-up control, and acceleration control.
Vehicle-to-vehicle Distance Control Mode (Models with Full-speed Range Following Function)	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. Basic operation in the vehicle-to-vehicle distance control mode is the same as in the conventional dynamic radar cruise control system (models without full-speed range following function). However, this system performs follow-up control over the entire speed range including vehicle stop and start during vehicle-to-vehicle distance control mode while maintaining the proper distance from the preceding vehicle. This mode mainly consists of 7 controls: constant speed control, deceleration control, follow-up control, acceleration control, stop control, stop retention control and start control.

Mode

Outline

Constant Speed Control Mode

Constant speed control mode is the same as in the conventional (non-dynamic radar type) cruise control system. However, differences are as follows:

The conventional cruise control system has a lower settable vehicle speed limit: approximately 40 km/h (25 mph) versus approximately 50 km/h (32 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 levels: long, middle, and short.
This mode consists mainly of 4 controls: constant speed control, deceleration control, follow-up control, and acceleration control.

Vehicle-to-vehicle Distance Control Mode (Models with Full-speed Range Following Function)

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.

Basic operation in the vehicle-to-vehicle distance control mode is the same as in the conventional dynamic radar cruise control system (models without full-speed range following function). However, this system performs follow-up control over the entire speed range including vehicle stop and start during vehicle-to-vehicle distance control mode while maintaining the proper distance from the preceding vehicle.
This mode mainly consists of 7 controls: constant speed control, deceleration control, follow-up control, acceleration control, stop control, stop retention control and start control.

In vehicle-to-vehicle distance control mode, the following illustrations are examples showing control when the vehicle is being driven at 100 km/h (62 mph) following the preceding vehicle being driven at 80 km/h (50 mph), and then stops and starts in accordance with the status of the vehicle ahead.

*A	Models with Full-speed Range Following Function	-	-
*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)
*i	Stop Control	*j	Stop Retention Control
*k	Start Control	*l	Vehicle Ahead Moves Off and Control Canceled
*m	From 80 km/h (50 mph) to 0 km/h (0 mph)	*n	Stop Retention
*o	Start-off Operation and Follow-up Control	*p	Approx. 40 km/h (25 mph) or Less