Vehicle Control Device Stabilizes Target Position Selection
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Solution Overview
Problem
Existing vehicle control systems face instability in selecting the appropriate detection point for safety devices due to the acquisition of multiple object positions for a single object, leading to frequent switching and potential instability in safety device operation.
Innovation Solution
A vehicle control device that includes an identification determination unit to determine if multiple object positions are for the same object, and a selection unit that stabilizes the target position by selecting it based on the previous target position, ensuring proper operation of safety devices even when multiple positions are acquired for a single object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple detection points are acquired for an object, then the detection accuracy is improved, but the target position selection becomes unstable due to frequent switching
Solution Approach 1:
The system performs preliminary classification to determine whether multiple detection points belong to the same object before selecting the target position. This preliminary action prevents subsequent target switching by establishing object identity in advance, thereby resolving the contradiction between detection accuracy and target selection stability
Solution Approach 2:
The system uses feedback from the classification result (whether detection points belong to the same object) to adjust the target position selection process. When multiple points are classified as the same object, the selection process is modified to maintain stability, thus resolving the contradiction between accurate detection and stable target selection
2Productivity
If the target position is selected based on TTC ranking among multiple detection points, then the closest object is prioritized, but the target position frequently switches when TTC values are similar
Solution Approach 1:
The system performs preliminary classification to determine object identity before applying TTC-based ranking. This preliminary action ensures that detection points from the same object are recognized as such, preventing target position switching even when TTC values are similar, thus resolving the contradiction between response efficiency and target stability
Solution Approach 2:
Instead of selecting target position first and then checking for switches, the system inverts the approach by first classifying detection points to determine object identity, then selecting the target position. This inversion prevents target switching by establishing object identity as the primary criterion, resolving the contradiction between prioritizing closest objects and maintaining target stability
Data Source
AI summary
A vehicle control device including an acquisition unit for acquiring an object position detected by an object detection sensor, an identification determination unit for determining that a plurality of object positions relates the same object when the plurality of object positions is acquired by the acquisition unit, and a selection unit that selects a current target position from among the plurality of object positions based on the previous object position that was set as the operation target of a safety device in the case when the identification determination unit determines that the plurality of object positions relates to the same object, and an operation control unit for controlling the operation of the safety device based on the current target position.