Axle Guide Member Protecting ABS Sensors
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Solution Overview
Problem
Existing axle assemblies for vehicles expose ABS sensors to environmental damage, reducing their sensitivity and durability, and pose challenges in protecting tone rings during assembly and managing lubricant flow.
Innovation Solution
The axle assembly incorporates guide members with shaft receiving portions and lubricant guide features to house ABS sensors and tone rings, ensuring protection and proper lubrication, while directing lubricant flow efficiently within the axle assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If ABS sensors are located on the exterior of axle assemblies, then installation and maintenance are easier, but the sensors are exposed to environmental damage reducing their durability and sensitivity
Solution Approach 1:
The ABS sensor assembly is integrated within the axle assembly housing, with the sensor positioned inside the housing and the tone ring mounted on the half shaft within the same housing space. This nested arrangement protects the sensor from environmental damage while maintaining functional accessibility.
Solution Approach 2:
The axle assembly housing serves multiple functions: it houses the differential, contains the ABS sensor assembly, and provides structural support. By making the housing multi-functional, the sensor is protected without requiring additional external mounting structures that would compromise durability.
2Reliability
If ABS sensors are housed within the axle assembly, then protection from environmental damage is improved, but the overall device complexity increases
Solution Approach 1:
The ABS sensor assembly is merged with the axle assembly as an integrated unit. The sensor, tone ring, and half shaft are all positioned within the same housing space, eliminating the need for separate external sensor mounting structures and reducing overall system complexity.
Solution Approach 2:
The axle assembly housing is designed to perform multiple functions simultaneously: supporting the differential, housing the ABS sensor assembly, and providing structural framework. This multi-functionality reduces the need for additional components, thereby reducing complexity while maintaining protection.
3Adaptability or versatility
If tone ring is attached to axle half shaft for ABS integration, then ABS functionality is achieved, but the tone ring is vulnerable to damage during assembly
Solution Approach 1:
The guide member is installed in advance within the housing before the half shaft is inserted. The guide member is positioned to align with the tone ring's central opening, creating a protective pathway that prevents damage during the subsequent half shaft insertion process.
Solution Approach 2:
The guide member acts as an intermediary component between the half shaft and the tone ring during assembly. It provides a guided pathway that ensures proper alignment and prevents direct impact or misalignment damage to the tone ring when the half shaft is inserted.
4Reliability
If guide members are added to protect tone ring and manage lubricant, then protection and lubrication are improved, but manufacturing complexity increases
Solution Approach 1:
The guide member is designed as a separate, modular component that can be manufactured independently and then installed within the housing. This segmentation allows for specialized manufacturing of the guide member with its specific features (central opening, lubricant flow paths) without complicating the manufacturing of the entire axle assembly.
Solution Approach 2:
The guide member serves as an intermediary component that provides multiple functions (protection, alignment, lubricant management) through a single simple structure. Its straightforward design with a central opening and integrated lubricant flow paths makes it easy to manufacture while achieving multiple protective and functional goals.
Data Source
AI summary
One or more guide members for use within a drive unit assembly of a vehicle. The one or more guide members have a body portion with an outer peripheral surface, a first end portion, a second end portion, and an intermediate portion interposed between the first end portion and second end portion. The intermediate portion of the one or more guide members have a first angularly bent portion defining a first extending portion and a second extending portion extending outward therefrom. The body portion of the one or more guide members have one or more shaft receiving portions therein.