Vehicle Sensor Placement on Bulging Connection Surfaces
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Solution Overview
Problem
Vehicles with bulging wheel arches pose a challenge for sensor detection due to blind spots created by these protrusions, which existing technologies fail to address effectively, impacting the ability to acquire accurate object information around the vehicle.
Innovation Solution
The configuration includes a first sensor positioned centrally on the vehicle's width direction on the front or rear surfaces and a second sensor placed on an inclined or round connection surface of the bulging parts, allowing detection of objects in blind spots formed by the bulging portions, with the second sensor having a narrower detection range to cover areas missed by the first sensor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a first sensor is disposed intermediately in the vehicle width direction on the front or rear surfaces, then the sensor can detect objects in the central area, but blind spots are created around the bulging parts where objects cannot be detected
Solution Approach 1:
The detection system is segmented into multiple sensors with different detection ranges and positions. A first sensor with wide detection range is placed centrally, while second sensors with narrower detection ranges are placed on the connection surfaces of bulging parts. This segmentation allows each sensor to cover specific zones, eliminating blind spots while maintaining system efficiency
Solution Approach 2:
Different sensor types and positions are assigned to different local areas of the vehicle. The first sensor covers the central area with wide detection range, while second sensors are specifically positioned on the connection surfaces of bulging parts to cover peripheral blind spot areas. Each sensor's detection characteristics are optimized for its specific location and function
2Measurement precision
If multiple sensors with wide detection ranges are used to cover blind spots, then object detection coverage is improved, but vehicle costs increase
Solution Approach 1:
Instead of using one or two expensive wide-range sensors to cover all areas, the system uses multiple sensors with narrower detection ranges positioned strategically. The second sensors on the connection surfaces provide just enough coverage for the blind spot areas without excessive detection capability, reducing individual sensor costs while achieving complete coverage through proper positioning
Solution Approach 2:
The patent employs inexpensive second sensors with narrower detection ranges for specific localized detection tasks on the bulging parts. These sensors are positioned to cover only the necessary blind spot areas, allowing the use of lower-cost sensor components rather than requiring expensive high-performance sensors for all detection needs
Data Source
AI summary
A vehicle capable of drive assist or automatic driving, comprises: a first sensor disposed intermediately in a vehicle width direction on at least one of front and rear surfaces of the vehicle and detecting an object therearound; bulging parts disposed on both sides of the at least one surface in the vehicle width direction and made up of a body bulging at least outward in a vehicle longitudinal direction; a connection surface that connects an outside surface in the vehicle width direction and an outside surface in the vehicle longitudinal direction of each of the bulging parts and that is an inclined surface or a round surface; and a second sensor arranged on the connection surface and detecting an object therearound.