DYNAMIC RADAR CRUISE CONTROL SYSTEM


  1. OUTLINE


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

    2. 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

      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.

    3. 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).

      A01MRAPC01
      *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)