Antilock Braking Sensor Mounting on Flexible Rear Axle
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing anti-lock braking systems (ABS) face challenges in precision and accuracy due to the introduction of intermediate parts that can introduce inaccuracies in wheel speed measurements, particularly in flexible rear axle configurations where stress absorption is necessary during bending.
Innovation Solution
The system employs two speed sensors fixed directly to a drum plate secured to the flexible rear axle, using an axle head yoke and fixed bearing parts for secure and space-saving attachment, allowing axial wheel speed measurement and deformation to absorb stresses, with a simple and fast mounting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If intermediate parts are used to mount the sensor on the flexible axle, then the mounting is more adaptable to the flexible structure, but the measurement precision deteriorates due to play and inaccuracies introduced by intermediate parts
Solution Approach 1:
The invention removes intermediate mounting parts from the sensor attachment system. The sensor is mounted directly to the drum plate, which is fixed to the axle, eliminating play-inducing intermediaries while maintaining adaptability to the flexible axle structure through the drum plate's direct connection.
Solution Approach 2:
The sensor mounting is merged with the drum plate structure itself. The drum plate serves both as the brake component and as the direct mounting surface for the sensor, eliminating the need for separate intermediate mounting brackets or adapters that would introduce play.
2Measurement precision
If the sensor is mounted directly to the drum plate on the flexible axle, then the measurement precision is improved, but the device complexity increases due to additional mounting components
Solution Approach 1:
The drum plate is given multiple functions: it serves as both the brake drum component and the sensor mounting platform. This multi-functionality eliminates the need for separate mounting brackets, reducing overall device complexity while maintaining direct sensor-to-axle measurement precision.
Solution Approach 2:
The invention extracts and eliminates unnecessary intermediate mounting components. By mounting the sensor directly to the drum plate, the design removes redundant parts that would increase complexity, achieving a simpler overall structure with equal or better precision.
3Ease of operation
If intermediate parts are used for sensor mounting, then the installation process is more flexible, but the installation time increases due to additional assembly steps
Solution Approach 1:
The sensor mounting is combined with the existing drum plate installation process. Since the drum plate must already be installed on the axle for the brake system to function, attaching the sensor directly to it adds minimal steps rather than requiring separate intermediate component installations.
Solution Approach 2:
The invention removes intermediate mounting components that would add assembly steps. By eliminating brackets, adapters, or other intermediaries, the installation process is streamlined to simply mounting the sensor directly to the drum plate, reducing total installation time.
Data Source
Figure 1~2
Figure 3~6
AI summary
The invention relates to an antilock braking system (20) for a vehicle, said vehicle comprising a rear axle (1) which is flexible, and designed to ensure a driving function of said vehicle, said system comprising two sensors (16), each one able to measure the speed of one of the two wheels (20) connected to said axle (1). The main characteristic of a system according to the invention is that each sensor (16) is attached to a fixed drum plate (13), said plate (13) being secured to said axle (1) and forming the fixed part of a drum brake of each of the two wheels (20).