Intelligent Cruise Control for Cut-In Collision Avoidance
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Solution Overview
Problem
Existing Smart Cruise Control (SCC) systems struggle to maintain stable longitudinal control and prevent collisions when vehicles cut into adjacent lanes, leading to potential rear-end collisions and driver discomfort due to rapid acceleration or deceleration.
Innovation Solution
An apparatus and method for controlling inter-vehicle distance using sensors and a controller to recognize forward targets, adjust inter-vehicle distances based on potential collisions, and change the target vehicle upon lane changes, ensuring a safer and more comfortable ride by maintaining a stable distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the SCC system controls the vehicle to maintain a predetermined inter-vehicle distance from a preceding vehicle, then the longitudinal control stability is improved, but the system becomes vulnerable to collisions when another vehicle cuts into the driving lane
Solution Approach 1:
The system performs preliminary detection of vehicles in adjacent lanes and predicts potential cut-in actions before they occur. By identifying a second target in an adjacent lane and predicting its lane change intention, the system prepares in advance to adjust the inter-vehicle distance, preventing collision before it happens
Solution Approach 2:
The system introduces an intermediate safety mechanism by maintaining a buffer distance when a cut-in is predicted. Instead of directly responding to the cut-in vehicle, the system uses the original preceding vehicle as a reference and adjusts the following distance to account for the potential cut-in, creating a safety margin that prevents collision
2Object-affected harmful factors
If the system rapidly decreases the vehicle speed to maintain inter-vehicle distance from a cut-in vehicle, then the collision avoidance with the cut-in vehicle is improved, but the vehicle may collide with a rearward vehicle
Solution Approach 1:
The system applies preliminary anti-action by detecting the presence of a rearward vehicle before rapidly decelerating. When a cut-in is detected, the system first checks if rapid deceleration would cause a rear-end collision, and only then decides on the appropriate speed adjustment strategy, preventing the harmful effect before it occurs
Solution Approach 2:
The system performs preliminary assessment of the rearward vehicle's position and speed before executing any deceleration maneuver. This advance evaluation allows the system to plan a safe speed reduction that maintains distance from both the cut-in vehicle and the rearward vehicle
3Device complexity
If the system maintains a predetermined inter-vehicle distance from the first target when a second target cuts in, then the control simplicity is preserved, but the riding comfort deteriorates due to rapid acceleration or deceleration
Solution Approach 1:
The system dynamically adjusts the inter-vehicle distance based on the driving situation. When a second target is detected in an adjacent lane, the system transitions from maintaining a fixed distance to calculating a dynamic safe distance that accounts for the potential cut-in, allowing smooth and comfortable speed adjustments
Data Source
AI summary
Disclosed are an apparatus and a method for controlling an inter-vehicle distance. Particularly, the apparatus for controlling an inter-vehicle distance may include one or more sensors, configured to detect one or more forward targets in front of a host vehicle, and a controller, configured to control the host vehicle to drive while maintaining a predetermined first inter-vehicle distance from a first target that drives on the driving road of the host vehicle. Therefore, according to the present disclosure, there are provided an apparatus and a method for controlling an inter-vehicle distance, which may more stably perform longitudinal control of a host vehicle while the host vehicle drives.