Boost Air Tank Control for Peak-Demand Vehicle Air Supply
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Solution Overview
Problem
Conventional vehicle air management systems with a single air compressor struggle to meet punctual higher pressurized air demands from pneumatically operated auxiliary devices, as they are designed to meet average air consumption levels, leading to insufficient air flow at peak times.
Innovation Solution
A vehicle air management system that includes an air compressor, an air tank, a boost air tank, and control valves and circuitry to monitor and adjust air flow, allowing the air compressor to be supercharged by the boost air tank when air consumption exceeds a predetermined threshold, thereby increasing production rate during peak demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single air compressor is designed to meet average air consumption, then cost and space are reduced, but the air compressor cannot deliver sufficient flow during peak demand periods
Solution Approach 1:
The system pre-charges a boost air tank during periods of low air demand so that pressurized air is already available when peak demand occurs. The control unit monitors air consumption levels and activates the boost tank in advance of peak demand periods, allowing the air compressor to maintain lower output during normal operation while still meeting peak requirements.
Solution Approach 2:
The system dynamically adjusts the air compressor's operation by switching between normal operation mode and boost mode based on real-time air consumption levels. The control unit continuously monitors demand and activates the boost air tank connection only when needed, creating a dynamic response to varying air pressure demands rather than operating at fixed capacity.
2Reliability
If the air compressor is designed to meet peak air demand, then sufficient air flow is available at all times, but the system requires higher power consumption and increased device size
Solution Approach 1:
The boost air tank is pre-charged during low-demand periods when the air compressor operates at lower power levels. This preliminary charging action stores pressurized air that can be rapidly deployed during peak demand, eliminating the need for the compressor to continuously operate at high power capacity while maintaining reliable air supply.
Solution Approach 2:
The boost air tank acts as an intermediary energy storage device between the air compressor and the air consumers. It decouples the compressor's power consumption from the peak demand requirements by storing pressurized air when demand is low and releasing it when demand is high, thereby reducing the compressor's average power consumption while maintaining supply reliability.
3Reliability
If the air compressor is designed to meet peak air demand, then sufficient air flow is available, but weight and dimensions of the system increase
Solution Approach 1:
The system uses a relatively small boost air tank that is pre-charged during low-demand periods. This preliminary charging allows the tank to provide supplemental pressurized air during peak demand without requiring the tank to be oversized. The combined capacity of the main air tank and boost tank, used sequentially, meets peak demand while keeping individual tank sizes and overall system weight reduced.
Solution Approach 2:
The air storage system is segmented into two separate tanks: a main air tank for normal operation and a smaller boost air tank for peak demand supplementation. This segmentation allows each tank to be optimized for its specific function, reducing the total weight and volume compared to a single large tank designed to meet peak demand alone.
4Ease of manufacture
If a single air compressor is used, then cost is reduced, but the system cannot meet punctual higher pressurized air demands
Solution Approach 1:
The control unit dynamically switches the air compressor's operational mode based on real-time monitoring of air consumption levels. When demand exceeds a predetermined threshold, the system automatically activates the boost air tank connection, providing adaptability to varying demand conditions. This dynamic control allows a single compressor system to adapt to different air demand scenarios without requiring multiple compressors or complex hardware configurations.
Solution Approach 2:
The boost air tank serves as an intermediary that enhances the adaptability of a single air compressor system. It allows the system to meet punctual higher pressurized air demands by providing supplemental stored pressure, thereby increasing the system's adaptability to varying demand conditions without requiring additional compressors or significant cost increases.
Data Source
AI summary
A vehicle air management system is provided. The vehicle air management system comprises an air tank and a boost air tank. Based on a signal indicative of an air consumption level of at least one air consumer, a control unit is configured to control the vehicle air management system to deliver pressurized air from the boost air tank to be supplied to an air compressor.