Air conditioning condenser system for a vehicle
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Solution Overview
Problem
Vehicle air conditioning condenser systems face challenges such as increased aerodynamic drag, space constraints, and inefficiency due to bulky designs, especially when auxiliary condensers are roof-mounted or placed underneath the vehicle, where they may be damaged by debris and require excessive energy to cool.
Innovation Solution
A vehicle air conditioning condenser system with roof-mounted coils, sensors to measure load parameters, and a fan controller that automatically activates or deactivates individual fans based on these parameters, optimizing airflow and energy use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If auxiliary condenser systems are positioned on top of the vehicle roof, then space for other components is preserved, but aerodynamic drag increases and clearance height increases
Solution Approach 1:
The condenser system is divided into multiple independent fan units that can be selectively activated. Each fan serves as a separate functional segment, allowing the system to optimize performance by activating only the necessary number of fans based on cooling load requirements, thereby reducing unnecessary aerodynamic drag while maintaining cooling effectiveness.
Solution Approach 2:
The fan control system dynamically adjusts the number of active fans based on real-time cooling demands. The controller monitors system conditions and selectively activates or deactivates individual fans, transforming the static all-or-nothing fan operation into a dynamic, demand-responsive system that minimizes aerodynamic drag while maintaining adequate cooling capacity.
2Object-generated harmful factors
If condenser systems are positioned underneath the vehicle, then aerodynamic drag is reduced, but components are exposed to road debris and heat radiation from the road
Solution Approach 1:
The condenser assembly is segmented into multiple independent fan units housed within a protective structure. This segmentation allows the system to position fans in a location that reduces aerodynamic drag while the protective housing shields individual fan components from road debris and heat radiation, isolating vulnerable parts from environmental hazards.
Solution Approach 2:
The condenser system incorporates a protective housing or shroud that预先 shields fan components from road debris and heat radiation before they can cause damage. This protective structure acts as a cushioning barrier, preventing direct exposure of critical components to harmful environmental factors while maintaining the benefits of under-vehicle positioning.
3Reliability
If all condenser fans are activated when the air conditioning system is on, then cooling capacity is ensured, but energy consumption increases
Solution Approach 1:
The system applies partial action by activating only the necessary number of fans based on actual cooling demands rather than running all fans at full capacity. The controller selectively engages individual fan units, using exactly the amount of cooling capacity needed at any given moment, thereby reducing energy consumption while maintaining adequate cooling performance.
Solution Approach 2:
The fan control system transitions from static full-capacity operation to dynamic demand-responsive operation. The controller continuously monitors cooling load conditions and adjusts the number of active fans in real-time, creating a dynamic system that matches energy consumption to actual cooling needs, thus reducing waste while ensuring sufficient cooling capacity is available when required.
4Reliability
If multiple condenser fans operate simultaneously, then cooling performance is maximized, but system complexity and control inefficiency increase
Solution Approach 1:
The control system is segmented to independently manage each fan unit, with simple binary control (on/off) for each individual fan rather than complex collective control. This segmentation simplifies the control logic for each fan while maintaining the ability to achieve various cooling performance levels through selective activation of different fan combinations.
Solution Approach 2:
The controller automatically determines the optimal number of fans to activate based on real-time monitoring of cooling load conditions, eliminating the need for manual intervention or complex coordination between fans. The system self-regulates by selectively engaging individual fans as needed, simplifying operation while maintaining optimal cooling performance through automated demand-responsive control.
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 solution enhances efficiency by minimizing energy consumption and preserving space, reducing aerodynamic drag, and protecting components from debris, while maintaining effective cooling capacity.
Implementation Method 1
The sensor is operable to measure at least one load indicating parameter of the heat transfer circuit
Implementation Method 2
a plurality of roof-mounted fans operable to supply blowing air to the roof-mounted condenser coils
Implementation Method 3
cooling a heat transfer medium flowing through a heat transfer circuit of a vehicle air conditioning system that includes one or more roof-mounted condenser coils
Data Source
AI summary
Condenser systems for vehicle air conditioning systems and processes for controlling condenser systems are disclosed. The condenser systems include a plurality of fans that can be activated and/or deactivated based on a load indicating parameter of the heat transfer circuit of the air conditioning system.