Wheel Hub Cap-Deflector Integration for Sensor Protection
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Solution Overview
Problem
Conventional vehicle wheel support systems require separate components and assembly operations for driving and driven wheels to prevent foreign matter from adhering to sensors, leading to a lack of component commonality and increased complexity.
Innovation Solution
A vehicle wheel support device that integrates a cap with a deflector member to isolate sensors from foreign matter, allowing the same hub carrier, sensor, wire harness, and connector to be used for both driving and driven wheels, with the cap serving as a protective barrier on the driven wheel side.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate hub carriers are used for driving and driven wheels to prevent foreign matter adhesion, then sensor protection is improved, but device complexity increases
Solution Approach 1:
The hub carrier is designed with a universal structure that can be used on both driving wheels and driven wheels. The deflector member is integrated into the hub carrier as a standard feature, eliminating the need for different hub carrier designs between driving and driven wheels while maintaining sensor protection functionality.
Solution Approach 2:
The deflector member is merged with the hub carrier to form an integrated component. This combination allows the hub carrier to simultaneously serve as both a mounting structure for the sensor and a protective barrier against foreign matter, reducing the total number of separate components needed.
2Reliability
If separate assembly operations are performed for driving and driven wheels, then sensor protection is ensured, but productivity decreases
Solution Approach 1:
The universal hub carrier design allows the same assembly operations to be performed on both driving and driven wheels. The standardized structure enables workers to use the same tools, procedures, and skill sets regardless of wheel type, significantly improving assembly efficiency while maintaining protective functionality.
3Object-affected harmful factors
If different specifications are used for hub carriers on driving and driven wheels, then foreign matter adhesion is prevented, but manufacturing complexity increases
Solution Approach 1:
A single standardized hub carrier specification is used for both driving and driven wheels. The design incorporates the deflector member as a standard feature, allowing mass production of identical components that can be universally applied, thereby simplifying manufacturing while maintaining protection against foreign matter adhesion.
Data Source
AI summary
A vehicle wheel support device includes: a hub bearing that rotatably supports a wheel of a vehicle; a hub carrier that supports the hub bearing; a sensor that detects a rotation state of the wheel of the vehicle; and a cap which prevents entry of foreign matter into the hub bearing and with which is formed integrally a deflector member including at least part of a deflector that isolates the sensor from the foreign matter.