Vehicle Air Conditioning Control Unit for Single-Step Max Volume
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Solution Overview
Problem
Conventional dual-zone air conditioning systems for vehicles require users to operate multiple switches to set both the driver seat and front passenger seat regions to maximum air volume levels, reducing user convenience and potentially limiting the maximum cooling or heating effect when only one region is set to maximum.
Innovation Solution
An air conditioning system with a control unit that allows both discharged air volume levels in the driver seat and front passenger seat regions to be set to maximum through a single switch operation, automatically controlling the other region to match, and enabling maximum cooling or heating effect even when only one region is set to maximum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If users manually control each region's air volume independently, then each region can be precisely adjusted, but the operation complexity increases and user convenience deteriorates
Solution Approach 1:
The patent merges the control of multiple region air volumes into a single unified control mechanism. When the user sets one region to maximum air volume, the control unit automatically applies the same setting to all other regions through the air volume distribution door, eliminating the need for separate manual adjustments for each region while maintaining precise control capability.
Solution Approach 2:
The control unit is designed with multi-functionality to automatically manage air volume distribution across multiple regions. It can detect when any region is set to maximum air volume and automatically adjust all regions accordingly, providing both individual region control and global maximum control functions within a single system.
2Ease of operation
If only one region is set to maximum air volume, then the user operation is simple, but the overall cooling or heating effect is insufficient
Solution Approach 1:
The control unit continuously monitors the air volume settings of all regions and automatically adjusts the air volume distribution door based on feedback from any region's setting changes. When any region is set to maximum air volume, the system detects this and automatically adjusts all other regions to maximum as well, ensuring both operational simplicity and effective cooling/heating performance.
3Reliability
If multiple switches are operated to set all regions to maximum air volume, then all regions can be controlled, but the time required for operation increases
Solution Approach 1:
The system performs preliminary automatic adjustment actions based on the user's initial setting. When the user sets one region to maximum air volume, the control unit proactively and automatically adjusts all other regions to maximum as well, eliminating the need for the user to sequentially operate multiple switches and significantly reducing the total operation time.
Data Source
AI summary
An air conditioning system for motor vehicles is designed to independently cool or heat a plurality of vehicle room regions and to independently adjust discharged air volume levels in the respective vehicle room regions. The air conditioning system includes a control unit configured to, when one of the discharged air volume levels in the respective vehicle room regions is set to a maximum air volume level, dependently control the other discharged air volume level to the maximum air volume level while entering into a maximum air volume control mode.