DYNAMIC RADAR CRUISE CONTROL SYSTEM

Item Outline
Cruise Control Switch ON/OFF Button Turns ON/OFF the power to the cruise control system.
MODE Switch Switches the control mode, between the constant speed control mode and vehicle-to-vehicle distance mode.
CANCEL Switch A cancel signal can be output to the ECM through the operation of this switch.
+RES Switch The acceleration function and resumption of a preset speed can be performed by operating this switch. A signal is output to the ECM when this switch is operated.
-SET Switch The deceleration function and vehicle speed setting resume signals are output to the ECM due to operation of this switch.
Distance Control Switch While the system is in the vehicle-to-vehicle distance control mode, the driver can operate the distance control switch to select the vehicle-to-vehicle distance in three stages: long, middle, and short.
Stop Light Switch Detects the pressing of the brake pedal and transmits a signal to the ECM.
Combination Switch Wiper Switch Transmits wiper switch information to the wiper ECU.
Millimeter Wave Radar Sensor Radiates millimeter waves forward, uses the reflected millimeter waves for detecting the presence of a vehicle being driven ahead, the vehicle-to-vehicle distance and the relative speed, and transmits these pieces of information to the distance control ECU. This sensor is also used in the pre-crash safety system.
Distance Control ECU While the system is in the vehicle-to-vehicle distance control mode, the distance control ECU detects the vehicle being followed based on signals from the millimeter wave radar sensor. Then, the distance control ECU calculates the acceleration or deceleration rate required in order to attain the target vehicle-to-vehicle distance, and outputs a request signal to the ECM and/or skid control ECU.
Combination Meter Assembly Cruise control Main Indicator Light

  • Illuminates when the constant speed mode is on.

  • If the distance control ECU detects a malfunction, this light turns off.
Radar Cruise Control Indicator Light

  • Illuminates when the vehicle-to-vehicle distance control mode is on.

  • If the distance control ECU detects a malfunction, this light turns off.
Cruise SET Indicator Light Illuminates when the constant speed control mode or the vehicle-to-vehicle distance control mode is set.
Master Warning Light Illuminates when there is a malfunction in the system.
Multi Buzzer If the ECM and distance control ECU detect automatic cancel or warning signals while the vehicle is operating under cruise control, the buzzer sounds to inform the driver.
Multi-information Display During the dynamic radar cruise control, the multi-information display receives signals from the distance control ECU in order to display the system conditions.
Steering Angle Sensor Detects the angle and direction of steering and transmits signals to the skid control ECU and distance control ECU.
Yaw Rate and Deceleration Sensor Detects the yaw rate of the vehicle and transmits signals to the skid control ECU and distance control ECU.
Skid Control ECU While the system is operating in vehicle-to-vehicle distance control mode, the skid control ECU actuates the brake actuator in accordance with the brake request signal received from the distance control ECU.In addition, the skid control ECU transmits signals such as a wheel speed and estimated vehicle acceleration speed to the distance control ECU.
VSC Warning Buzzer Sounds on receiving a signal from the skid control ECU assembly and alerts the driver that the distance between vehicles is short.
Brake Actuator Actuates the brakes in accordance with the signals from the skid control ECU.
Stop Light Control Relay Illuminates the stop light in accordance with the stop light illumination request signal from the skid control ECU.
ECM

  • Controls the cruise control system in accordance with signals from the switches, sensors, skid control ECU and distance control ECU.

  • If the ECM detects a malfunction in the cruise control system, it will store a Diagnostic Trouble Code (DTC).
Accelerator Pedal Sensor Detects the amount of pedal effort applied to the accelerator pedal and transmits signals to the ECM.
Park/Neutral Position Switch Detects the shift position and transmits signals to the ECM.
Throttle Body Adjusts the throttle valve opening angle in accordance with signals from the ECM.
VGRS ECU Transmits the VGRS condition signal to the distance control ECU.
4WD Control ECU Transmits the transfer condition signal to the distance control ECU.
Network Gateway ECU Transmits the CAN communication signal.
DLC3 The 5-digit DTCs can be read by connecting the Global TechStream (GTS) to the DLC3.