Vehicle Cruise Control Axial Deviation Detection
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Solution Overview
Problem
Due to sensor installation conditions, axial deviations can occur, leading to incorrect recognition of the position of objects and subsequent incorrect prediction of the travel route of a vehicle, which affects the accuracy of vehicle cruise control systems.
Innovation Solution
A vehicle cruise control apparatus that includes an inter-vehicle distance sensor for detecting deviations, a trajectory calculation unit for determining the moving locus of preceding vehicles, a route prediction unit for calculating the predicted route, and an invalidation processing mechanism to invalidate predictions when axial deviations are detected, ensuring accurate route prediction and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the inter-vehicle distance sensor is installed to detect the position of preceding vehicles, then the vehicle-following control can be implemented, but axial deviation of the sensor causes incorrect recognition of object position and incorrect prediction of travel route
Solution Approach 1:
The system performs preliminary detection of axial deviation before route prediction is executed. By detecting whether the sensor axis is deviated from the vehicle centerline in advance, the system can determine whether to trust the sensor data for route prediction, preventing incorrect predictions based on deviated sensor readings
Solution Approach 2:
The system dynamically adjusts the route prediction process based on the detected axial deviation state. When axial deviation is detected, the system invalidates the predicted route calculated from sensor data; when no deviation is detected, the predicted route is used. This dynamic switching ensures reliability while maintaining measurement precision utilization
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively prevents incorrect route predictions caused by axial deviations, maintaining accurate vehicle cruise control by switching to alternative prediction methods when deviations are detected, thereby ensuring safe and precise vehicle following.
Implementation Method 1
an inter-vehicle distance sensor for detecting a distance between vehicles by the transmission and reception of survey waves provided in the own vehicle as an object detection means for detecting an object
Data Source
AI summary
A radar device for detecting a distance between vehicles by the transmission and reception of survey waves is mounted in a vehicle as an object detection means for detecting an object. A cruise control apparatus includes a trajectory calculation means for calculating a moving locus of a preceding vehicle traveling in front of an own vehicle on the basis of the detection result of the radar device, a route prediction means for calculating a predicted route of the vehicle on the basis of the moving locus of the preceding vehicle calculated by the trajectory calculation means, an axial deviation detection means for detecting the axial deviation of the radar device, and an invalidation processing means for invalidating the predicted route calculated by the route prediction means when it is detected that the axial deviation detection means has detected axial deviation of the radar device.