Commercial Vehicle Secondary Braking System Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing commercial vehicle braking systems face issues where the secondary braking system relies on or shares components with the main braking system, leading to wear and potential failure, compromising vehicle safety.
Innovation Solution
A secondary braking system is designed with separate rotary and stationary deceleration force generating elements, independent from the main braking system, using distinct friction elements and actuators to maintain functionality even with heavy wear or failure of the main system components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the secondary braking system shares components with the main braking system, then device complexity is reduced, but reliability deteriorates due to wear and potential failure of shared components
Solution Approach 1:
The braking system is divided into two independent subsystems: a main braking system for primary deceleration and a secondary braking system for backup and parking functions. Each system has its own actuators, friction elements, and control mechanisms, ensuring that failures in one system do not compromise the other. This segmentation resolves the contradiction by prioritizing reliability over simplicity.
Solution Approach 2:
The secondary braking system extracts and uses the rotary friction element (brake disc or drum) from the wheel assembly, but pairs it with completely independent stationary friction elements and actuators. This extraction approach allows the secondary system to benefit from the existing rotary component while maintaining independence of wear-prone and failure-prone parts, thus improving reliability without excessive complexity.
2Ease of manufacture
If the secondary braking system uses parts of the main braking system, then manufacturing cost is reduced, but wear of essential components increases
Solution Approach 1:
The patent segments the braking systems so that wear-prone components (friction elements) and failure-prone components (actuators) are completely separate between main and secondary systems. The rotary friction element is shared, but all other components are independent. This segmentation prevents wear transfer to essential main system components while maintaining reasonable manufacturing efficiency.
Solution Approach 2:
The secondary braking system uses dedicated friction elements that are designed to be replaced independently of the main system's expensive and critical components. These secondary friction elements act as disposable or easily replaceable parts that protect the main system's essential components from wear, balancing manufacturing considerations with component preservation.
3Reliability
If the main braking system fails, then primary braking function is lost, but the secondary braking system should remain operational
Solution Approach 1:
The braking system is segmented into independent main and secondary subsystems with separate actuators, friction elements, and control mechanisms. This segmentation ensures that a failure in the main system's actuators or friction elements does not propagate to the secondary system, maintaining backup functionality despite increased overall system complexity.
Solution Approach 2:
The secondary braking system is designed as a pre-prepared backup that remains dormant during normal operation but is immediately available if the main system fails. By maintaining independent components in advance, the system cushions against potential main system failures without requiring complex real-time switching mechanisms, thus balancing reliability with manageable complexity.
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 configuration ensures the secondary braking system remains operational and effective, preventing wear on main braking system components and maintaining vehicle safety by using independent parts and actuators, even in cases of main braking system failure.
Implementation Method 1
the stationary friction element is configured to transmit a braking force Fb onto the rotary friction element
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to a braking system and a vehicle with braking system and in particular relates to 2 such black system and vehicular with black system wherein the main braking system and the secondary braking system are separate. According to a first aspect, disclosed is a secondary braking system for a commercial vehicle, comprising: a rotary deceleration force generating element fixed to or being part of and thus rotating conjointly with a wheel of the vehicle, and a stationary deceleration force generating element that is indirectly or directly fixed in a manner to a chassis of the vehicle that prohibits the stationary decelerating force generating element to rotate with the rotary deceleration force generating element, wherein the stationary deceleration force generating element is configured to transmit a braking force Fb onto the rotary deceleration force generating element, and the stationary deceleration force generating element is independent from a main braking system of the commercial vehicle.