Vehicle Control Apparatus Non-Operating Area for Radar Detection
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Solution Overview
Problem
Existing vehicle control systems face issues with erroneous detection of a target object's route due to unwanted reflected waves, leading to unnecessary vehicle control actions such as braking or warnings, especially during reverse maneuvers like parallel parking.
Innovation Solution
A vehicle control apparatus that includes an area setting unit to establish a non-operating area orthogonal to the vehicle's advancing direction, preventing vehicle control when unwanted reflected waves from objects outside this area are detected, thereby reducing erroneous detections and unnecessary actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the millimeter-wave radar apparatus detects information of a target object based on reflected waves, then the position of the target object can be detected, but erroneous detection may occur due to unwanted reflected waves from objects other than the target object
Solution Approach 1:
The detection space is segmented into a monitoring area and a non-operating area. The non-operating area is defined as a predetermined region with reference to the position of the target object in the lateral direction. When the target object is detected within the non-operating area, the system determines that the detection is likely erroneous due to unwanted reflected waves and suppresses vehicle control operations, thereby resolving the contradiction between detection sensitivity and reliability.
2Reliability
If the system performs collision determination based on predicted routes, then vehicle safety can be improved, but unnecessary vehicle control may be performed due to erroneous route estimation
Solution Approach 1:
The system performs preliminary actions by defining the non-operating area in advance and checking whether the target object is located within this area before performing collision determination. This preliminary check prevents erroneous collision determinations caused by unwanted reflected waves, ensuring that vehicle control is only performed when the target object is detected in a valid monitoring area, thus improving both reliability and efficiency.
3Reliability
If the system performs vehicle control when collision is determined, then traveling safety can be provided, but unnecessary braking or warning may occur due to erroneous detection
Solution Approach 1:
The non-operating area serves as an intermediary filter between the target object detection and the vehicle control execution. When the target object is detected within the non-operating area, the system uses this intermediate judgment to suppress vehicle control operations, preventing unnecessary braking or warning that would disrupt driver operation. This intermediary mechanism maintains traveling safety by ensuring control is only performed when detections are reliable.
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
This solution effectively suppresses unnecessary vehicle control by distinguishing between actual and erroneous target object positions, ensuring appropriate collision determination and control only when the target object is outside the non-operating area, thus enhancing safety and reducing false alarms.
Implementation Method 1
a probe apparatus that transmits probe waves and receives reflected waves that are reflected by a target object
Data Source
AI summary
In a vehicle control apparatus, an acquiring unit acquires detection information from a probe apparatus based on reflected waves thereof. A target object information detecting unit detects a position of a target object. A target object route estimating unit estimates a route of the target object. An own vehicle route estimating unit estimates a route of an own vehicle. A collision determining unit determines whether the own vehicle and the target object will collide. A vehicle control unit performs vehicle control of the own vehicle when the own vehicle and the target object are determined to collide. An area setting unit sets a non-operating area for vehicle control. The area setting unit sets, as the non-operating area, a predetermined area with reference to a position in which the target object is detected, in a lateral direction that is orthogonal to an advancing direction of the own vehicle.