Wheel Deflector Position Sensing With Foreign Matter Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need to suppress foreign matter from reaching the detection section in adjusting instruments, particularly in deflector devices that manage airflow onto vehicle front wheels.
Innovation Solution
A deflector device is designed with a deflector body that can be rotated to deploy in front of the front wheel, suppressing airflow, and stowed within the vehicle body. The device includes a housing body, a partition member, a drive mechanism, a detected portion, and a detection section, where the partition member prevents foreign matter from reaching the detection section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the detection section is exposed to the housing body interior, then the detection section can detect the rotational position of the detected portion, but foreign matter can reach the detection section causing reliability issues
Solution Approach 1:
The housing body interior is segmented into multiple spaces by the partition member, creating a first space for the drive mechanism and a second space for the detection section. This segmentation prevents foreign matter from the drive mechanism space from reaching the detection section, resolving the contradiction between detection accessibility and contamination protection.
Solution Approach 2:
The partition member acts as an intermediary barrier between the drive mechanism and the detection section. It allows the detection section to function while blocking foreign matter generated by the drive mechanism, thus protecting the detection section without isolating it completely from the housing body interior.
2Object-generated harmful factors
If the deflector body is deployed in front of the front wheel, then airflow onto the front wheel is suppressed, but the device complexity increases due to rotation mechanism
Solution Approach 1:
The detection section is integrated into the housing body structure rather than being a separate assembly, and the partition member is incorporated into the housing body itself. This merging reduces the number of separate components and simplifies the overall device structure while maintaining the rotational deployment functionality.
Solution Approach 2:
The housing body serves multiple functions: it houses the drive mechanism, contains the detection section, provides structural support, and acts as a mounting structure for the partition member. This multi-functionality reduces the need for additional components, thereby reducing device complexity while enabling the deflector body to be deployed and stowed.
Data Source
AI summary
In a deflector device, a magnet is rotated when a deflector body is rotated, and a magnetic sensor also detects a rotational position of the magnet. Moreover, an interior of a housing body is partitioned by a motor base into a vehicle width direction outside of the interior and a vehicle width direction inside of the interior, with the magnet housed on the vehicle width direction outside of the interior of the housing body. The magnetic sensor is housed on the vehicle width direction inside of the interior of the housing body. This accordingly enables foreign matter ingression from the vehicle width direction outside of the interior of the housing body into the vehicle width direction inside thereof to be suppressed by the motor base, enabling foreign matter to be suppressed from reaching the magnetic sensor.