Vehicle Control Apparatus Trajectory-Based Detection
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Solution Overview
Problem
Conventional vehicle control systems, such as pre-crash safety (PCS), adaptive cruise control (ACC), lane keep assist (LKA), and lane departure warning (LDW), fail to effectively differentiate between straight-ahead cruising and apparent straight-ahead cruising states, leading to inappropriate application of collision avoidance and mitigation measures due to the lack of consideration for the vehicle's drifting trajectory.
Innovation Solution
A vehicle control apparatus that includes a straight-ahead cruising determining unit, a detecting unit, an operation control unit, and a condition setting unit, which sets different application conditions based on the vehicle's cruising trajectory to distinguish between the left and right sides, allowing for more accurate object detection and control during apparent straight-ahead cruising.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional vehicle control systems apply uniform conditions for object detection on both left and right sides, then the system structure remains simple, but the control accuracy deteriorates when the vehicle is in apparent straight-ahead cruising state with drifting trajectory
Solution Approach 1:
The patent applies different detection conditions to the left and right sides of the vehicle based on the cruising trajectory. When the vehicle drifts to one side, the system sets more relaxed detection conditions on the opposite side where objects are more likely to enter the vehicle path, while maintaining stricter conditions on the current side. This localized adaptation of detection parameters improves accuracy without requiring complete system redesign.
Solution Approach 2:
The detection conditions are dynamically adjusted based on the real-time cruising trajectory of the vehicle. The system continuously monitors whether the vehicle is in strict straight-ahead cruising or apparent straight-ahead cruising state, and adapts the detection thresholds and areas accordingly. This dynamic adjustment allows the system to respond to changing vehicle states without fixed structural complexity.
2Reliability
If the vehicle control system considers cruising trajectory and sets different conditions for left and right sides, then the control accuracy improves during apparent straight-ahead cruising, but the system complexity increases
Solution Approach 1:
The patent segments the detection area into left and right sides with different detection conditions. By dividing the monitoring space and applying trajectory-based logic separately to each side, the system achieves higher reliability through differentiated control while keeping the overall structure manageable through modular segmentation of detection zones and condition sets.
3Productivity
If uniform detection conditions are used for all objects ahead of the vehicle, then the detection process remains simple, but the effectiveness of collision avoidance deteriorates when vehicle trajectory drift is present
Solution Approach 1:
The patent changes detection parameters such as detection thresholds, target areas, and evaluation criteria based on the vehicle's cruising trajectory and the side-specific context. By adjusting these parameters dynamically according to trajectory data and object position relative to the drifting path, the system improves collision avoidance effectiveness without requiring fundamentally new detection hardware or complex algorithms.
Data Source
AI summary
A vehicle control apparatus includes: a straight-ahead cruising determining unit that determines whether or not a vehicle is in a straight-ahead cruising state; a detecting unit that detects a target object that meets a predetermined condition related to at least either of a current positional relationship or a future predicted positional relationship with the vehicle, among objects ahead of the vehicle, when the vehicle is determined to be in the straight-ahead cruising state; an operation control unit that makes the vehicle perform a predetermined operation related to the detected target object; and a condition setting unit that sets the condition to be applied to the left side in relation to a center line of the vehicle to differ from the condition to be applied to the right side, based on a cruising trajectory of the vehicle.