Rear Side Warning Sensing for Blind-Spot Coverage in Lane Changes
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Solution Overview
Problem
Conventional rear lateral sensing systems fail to detect vehicles in the blind spot when the host vehicle changes lanes, leading to increased collision risks due to the shifting monitoring range of radar sensors.
Innovation Solution
A system and method that adjust the monitoring area of the rear sensing device based on the turning angle of the vehicle, using a combination of rear and front sensing devices to reset the monitoring area and ensure detection of vehicles on the rear lateral side during lane changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the radar sensor monitors the rear lateral side of the vehicle with a fixed monitoring range, then the system structure is simple and the monitoring area is stable, but when the vehicle changes lanes the monitoring range does not include the rear lateral vehicle leading to detection failure
Solution Approach 1:
The monitoring area of the radar sensor is made dynamic by adjusting it according to the turning angle of the vehicle. When the vehicle changes lanes, the controller receives turning angle information from the driving determination device and resets the monitoring area accordingly, ensuring the radar continues to monitor the relevant rear lateral region throughout the lane change maneuver
2Measurement precision
If the monitoring area is adjusted according to turning angle during lane changes, then the detection accuracy improves, but the device complexity increases due to additional sensing devices and control logic
Solution Approach 1:
The system merges the rear sensing device with the driving determination device that already exists for other driving assistance functions. The driving determination device catches driving intention and checks whether the vehicle turns, and this information is integrated with the rear sensing device to adjust the monitoring area, reducing overall system complexity through functional integration
3Adaptability or versatility
If the monitoring area is reset based on turning angle, then the system adapts to lane changes effectively, but the control complexity increases
Solution Approach 1:
The system implements feedback control where the driving determination device continuously monitors driving intention and turning angle, and the controller adjusts the monitoring area based on this feedback. This closed-loop control ensures the monitoring area remains appropriately positioned during lane changes without requiring complex open-loop control sequences
Data Source
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AI summary
The present disclosure discloses a system and a method of rear lateral sensing of a vehicle for resetting a monitoring area on the rear lateral side of the vehicle according to a turning angle of the vehicle when the vehicle changes lanes so that a blind spot generated at the time of a lane change is removed, thereby preventing a collision with a vehicle located on the rear lateral side of the vehicle and securing driving stability.