Brake Booster Device Captive Spring Mount
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional brake booster systems require high initial forces for brake pressure buildup due to the need for pre-stressing springs, which can be cumbersome and inefficient, and lack immediate feedback on brake actuation termination.
Innovation Solution
The brake booster device employs a captive spring mount to pre-stress an initial spring, allowing for lower initial forces and includes an auxiliary spring for immediate actuation feedback, potentially eliminating the need for a return spring, and incorporates a motor and gear system for adjustable boosting force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional spring/return spring is used to pre-stress the initial spring, then the brake actuation element can be returned to its initial position, but the system requires high initial forces and increased device complexity
Solution Approach 1:
The patent extracts and removes the spring/return spring component from the conventional brake booster system. Instead of using a spring to pre-stress the initial spring and return the brake actuation element, the invention uses a captive spring mount that integrates the return function directly into the housing structure, eliminating the need for a separate spring component and reducing the initial forces required
Solution Approach 2:
The captive spring mount acts as an intermediary structure that provides both the mounting function for the initial spring and the return mechanism. By integrating these functions into a single structural component rather than using a separate spring, the system achieves the desired brake actuation feeling without requiring high initial forces
2Ease of operation
If a spring/return spring is used to counteract braking into the main brake cylinder, then the brake actuation element can be returned, but the system complexity and component count increase
Solution Approach 1:
The patent merges the spring mounting function and the return mechanism into a single captive spring mount structure. This integrated design eliminates the need for a separate spring/return spring component, reducing device complexity while maintaining the ability to return the brake actuation element to its initial position
Solution Approach 2:
The captive spring mount serves multiple functions: it provides structural support for the initial spring, enables the return of the brake actuation element, and integrates into the housing structure. This multi-functional component replaces what would traditionally require multiple separate components, thereby reducing overall system complexity
3Productivity
If the brake actuation element is released, then braking terminates, but the driver does not sense immediate response without auxiliary feedback mechanism
Solution Approach 1:
The patent implements a feedback mechanism using an auxiliary spring that provides tactile feedback to the driver when the brake actuation element is released. The auxiliary spring is positioned to contact the brake actuation element and provide a noticeable recoil or click sensation, giving the driver immediate information that braking has terminated, thus compensating for the loss of visual or other feedback
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design reduces the minimal forces required for brake pressure buildup and provides immediate feedback on brake actuation termination, enhancing driver convenience and reducing the complexity of the braking system.
Implementation Method 1
an initial spring (18), which is compressibly situated between an inner wall (20) of said bore (16) in said guide body (14) and a widened intermediate section (22) of said input rod component (10), and which is constrained with the aid of a captive spring mount (24) in such a way that an expansion of the initial spring (18) from a partially compressed state of the initial spring (18) is prevented by the captive spring mount (24)
Implementation Method 2
an auxiliary spring (34), with the aid of which the widened intermediate section (22) of said input rod component (10) is supported by the inner wall (20) of said bore (16) in said guide body (14)
Implementation Method 3
a motor (40), which is connected via at least one gear component (38a, 38b, 38c) to said guide body (14), said guide body (14) being adjustable with the aid of a booster force applied by said motor (40)
Implementation Method 4
a motor (40), which is connected via at least one gear component (38a, 38b, 38c) to said guide body (14)
Data Source
AI summary
A brake booster device is provided for a braking system of a vehicle having an input rod component, which may be situated relative to a brake actuation element in such a way that the input rod component is adjustable with the aid of a driver brake force exerted on the brake actuation element, and having a guide body with a bore formed therein, into which the input rod component at least partially protrudes, an initial spring being compressibly arranged between an inner wall of the bore in the guide body and a widened intermediate section of the input rod component, and the initial spring being constrained with the aid of a captive spring mount.