Water-Cooled Condenser Control During Vehicle Acceleration
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Solution Overview
Problem
Existing vehicle cooling systems with water-cooled condensers do not effectively manage heat transfer and water temperature during vehicle acceleration, leading to reduced cooling efficiency and output performance.
Innovation Solution
A vehicular cooling system that includes a water-cooled condenser with a control unit to suspend coolant flow in response to predetermined acceleration conditions, reducing heat transfer to the cooling water and lowering the temperature of the cooling device, thereby enhancing cooling efficiency and output performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the water-cooled condenser continuously transfers heat to the cooling water circuit during vehicle operation, then the air conditioner cooling function is maintained, but the cooling water temperature increases which reduces the drive source output during acceleration
Solution Approach 1:
The control unit suspends coolant circulation in the water-cooled condenser during predetermined acceleration periods, creating a periodic on-off action. This temporarily stops heat transfer from the condenser to the cooling water circuit, allowing the cooling water temperature to decrease during acceleration phases, thereby improving drive source output when acceleration is needed
2Power
If the coolant flow in the water-cooled condenser is suspended during acceleration, then the cooling water temperature decreases and drive source output improves, but the air conditioner cooling function is temporarily reduced
Solution Approach 1:
The system dynamically adjusts the coolant flow based on vehicle acceleration conditions. The control unit monitors acceleration state and dynamically switches the condenser operation between active cooling mode and suspended mode, optimizing the balance between drive source performance and air conditioner functionality according to real-time driving conditions
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
The system improves the output of the vehicle drive source by reducing heat transfer and lowering intake air temperature, enhancing acceleration performance and reducing knocking in internal combustion engines, and improving motor output in electric vehicles.
Implementation Method 1
a first radiator structured to perform heat exchange between outside air and first cooling water circulating in the first cooling-water circuit
Implementation Method 2
a water-cooled condenser structured to cool coolant of a vehicle interior air conditioner of the vehicle
Data Source
AI summary
A series-hybrid vehicle includes an internal combustion engine for electric power generation and a motor generator for travelling. The internal combustion engine is cooled by a second coolant water circuit that has a main radiator. A first coolant water circuit having a sub radiator is used to cool a front wheel-side power train cooling part, a rear wheel-side power train cooling part, a water-cooled condenser, and a low temperature-side intercooler. When the vehicle is accelerating, an electrical compressor for an air conditioner comes to a stop, and the circulation of refrigerant to the water-cooled condenser is brought to a halt.