Electromechanical Braking Apparatus Vibration Isolation
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Solution Overview
Problem
Conventional electromechanical boosters suffer from reduced durability and noise issues due to motor vibrations, as the gear mechanism is partially bolted to the motor, leading to vibration transmission and oscillation.
Innovation Solution
An electromechanical braking apparatus with a securing member that includes gear-side and motor-side joints, firmly fixing the master cylinder and motor together, reducing vibration and noise through a robust metal securing member that prevents deformation and abrasion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the gear mechanism is partially bolted to the motor for fixation, then the assembly is secured, but the durability life is shortened due to continuous exposure to motor vibration
Solution Approach 1:
A vibration-absorbing member is introduced as an intermediary component between the motor and the gear mechanism. This member absorbs and dampens the vibrations generated by the motor, preventing them from being transmitted to the gear mechanism and fasteners, thereby extending the durability life of the assembly while maintaining secure fixation.
2Object-generated harmful factors
If the gear mechanism is bolted to the motor, then the components are fixed together, but noise is generated due to gap or clearance in the bolted parts
Solution Approach 1:
The vibration-absorbing member serves as a mediator that fills gaps and clearances between the motor and gear mechanism. By eliminating these gaps, it prevents noise generation from loose bolted parts while maintaining the necessary fastening structure and mechanical connection.
Solution Approach 2:
The vibration-absorbing member is made of viscoelastic material, which combines properties of elasticity and viscosity to effectively dampen vibrations and reduce noise. This composite material approach allows the fastening structure to remain relatively simple while achieving noise reduction through the material's inherent damping characteristics.
3Object-affected harmful factors
If a securing member firmly fixes the master cylinder and motor together, then vibration isolation is improved, but the device complexity increases
Solution Approach 1:
The vibration-absorbing member integrates multiple functions into a single component: it acts as both a vibration isolator and a structural element that maintains the spatial relationship between the motor and gear mechanism. This merging of functions reduces the need for additional separate vibration isolation components, thereby limiting the increase in device complexity.
Data Source
AI summary
The present disclosure in at least one embodiment provides a braking apparatus including a rod configured to translate in response to a depression of a brake pedal, a master cylinder configured to receive brake oil and to be responsive to insertion of the rod for discharging brake oil contained, a motor, a gear mechanism having at least some part connected to the master cylinder and at least some other part connected to the motor, and a securing member which includes a gear-side joint configured in at least some part of the securing member to be fastened to the gear mechanism and the master cylinder, and a motor-side joint configured in at least some other part of the securing member to be fastened to the motor.