Blind Spot Monitoring With Rear Cross Path Detection: Notes
DESCRIPTION
The Blind Spot Monitoring (BSM) with Rear Cross Path (RCP) Detection system can consist of the following components:
| 1. | Refer to BODY CONTROL MODULE (BCM) . |
| 2. | Refer to BLIND SPOT INDICATOR LAMP - EXTERIOR REARVIEW MIRROR GLASS . |
| 3. | Refer to CENTRAL ADAS DECISION MODULE (CADM) . |
| 4. | Refer to MID RANGE RADAR REAR LEFT (MRRRL) AND MID RANGE RADAR REAR RIGHT (MRRRR) . |
| 5. | Refer to INSTRUMENT PANEL CLUSTER (IPC) . |
| 6. | Refer to DRIVER DOOR MODULE (DDM) AND PASSENGER DOOR MODULE (PDM) . |
The BSM system, when enabled, monitors the rear blind zones on both sides of the vehicle using the MRRRL and the MRRRR. Both of these radars are hardwired directly to the CADM. If a vehicle is detected in one of the blind spot zones, the driver will be notified by a blind spot Light Emitting Diode (LED) indicator lamp that illuminates an icon on the outside rear view mirror on the side of the vehicle where the object is detected. The system can also be configured to emit an audible chime through the IPC in the Customer Programmable menu options.
There are three operating modes for the BSM system:
- OFF: All visual and audible alerts related to objects of interest in the blind sport zone are suppressed.
- ON with blind spot indicator only
- ON with blind spot indicator and chimes
The RCP feature is active when the ignition is in the "RUN" position and the R verse gear is engaged. A warning is issued when an object is detected when the host vehicle is either stationary or moving and the radars detect a valid target with a valid crossing trajectory and time to crossing.
The RCP detection system monitors the rear detection zones for vehicles that are moving toward the sides of the vehicle with a minimum speed of 13 km/h (8 mph).
Lane Change Assist Feature - The lane change assist feature is activated when the turn signal indicator is activated. The CADM enables a chime alert algorithm to be used during the lane change. If during lane change an object is detected, the customer is warned by a directional visual alert and a directional chime. The directional warnings are prompted to the same side of the vehicle in which the object is detected.
OPERATION
When the vehicle speed exceeds 10 km/h (6 mph) and the either radar detects an object within 24 km/h (15 mph) of the vehicle speed passing through the monitored zone from the rear of the vehicle, the CADM will request a blind spot LED indicator request to the DDM or PDM. The DDM or PDM controls the indicator lamp through a Pulse Width Modulated (PWM) circuit to the mirror on the side of the vehicle that the object is detected. If the driver attempts to enter the zone where the object has been detected and with the turn signal activated, the CADM will send out two additional requests to alert the driver.