Air Charging Controller High Demand Mode for Braking Pressure
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Solution Overview
Problem
Conventional air charging systems in vehicles fail to optimize air supply during high air usage events such as antilock braking or stability control interventions, leading to a steep drop in air pressure due to inadequate recharging rates.
Innovation Solution
An air charging system controller that monitors vehicle conditions and switches the compressor to a high demand mode by adjusting cut-in and cut-out pressures, ensuring sufficient air supply during projected high air usage events, thereby maintaining consistent air pressure for effective braking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the compressor operates in normal mode with standard cut-in and cut-out pressure cycling, then energy consumption is reduced and compressor wear is minimized, but air pressure drops steeply during high air usage events such as antilock braking
Solution Approach 1:
The controller detects anticipated high air demand conditions (antilock braking, stability control) and pre-emptively switches the compressor to high demand mode before the actual high air usage event occurs. This preliminary action ensures air pressure is maintained during critical braking operations without requiring continuous high energy consumption during normal operation
Solution Approach 2:
The system dynamically switches between normal mode and high demand mode based on real-time detection of vehicle operating conditions. The compressor operates in normal mode during standard conditions and transitions to high demand mode with adjusted cut-in and cut-out pressures when high air demand is anticipated, optimizing both energy efficiency and air pressure reliability
2Reliability
If the compressor operates continuously to maintain air pressure during high demand events, then air pressure consistency is improved, but the duration of compressor operation increases and wear increases
Solution Approach 1:
The controller detects anticipated high air demand conditions and pre-emptively switches the compressor to high demand mode before the actual high air usage event occurs. This preliminary action ensures air pressure is maintained during critical braking operations without requiring continuous high energy consumption during normal operation
Solution Approach 2:
The system changes the operating parameters of the compressor by adjusting cut-in and cut-out pressure thresholds when switching between normal mode and high demand mode. During high demand mode, the compressor maintains higher air pressure by operating at different pressure cycling points, ensuring adequate air supply during braking events while allowing the compressor to cycle off when pressure requirements are met
Data Source
AI summary
Various embodiments of a method and apparatus for an air charging system controller for an air braked vehicle are disclosed. The air charging system controller comprises an input for receiving conditions of the vehicle, an output for controlling a compressor in a normal mode and in a high demand mode and control logic. The control logic determines whether the vehicle meets a predetermined condition and controls the compressor in the high demand mode in response to the vehicle meeting the predetermined condition.