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Road Map and Technology Trends for Vehicle Engine Cooling Fan Speed Control
Technical Paper
2011-01-1334
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper describes the rationale for the technology selection and speed control methods for electric cooling fans used for typical automotive applications, including most passenger cars and even some light duty truck s. Previous selection criteria were based primarily around cost, simplicity of implementation and reliability. However, the more recent focus toward fuel economy and optimization of energy consumption at a vehicle level has given a greater priority to the minimization of electrical power draw. Specifically, that need is addressed through both efficiency of the electric motor at any operating condition as well as providing a control method that delivers only the minimum electrical power to meet engine cooling and air conditioning requirements. This paper will explore the various control methods available, their relative merits and shortcomings and how they influence both FTP and real world fuel economy. Those attributes help to define what is the likely technology trend and road map for future electric cooling fan control selection.
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Lockwood, T., Mikhaeil-Boules, N., and Vazquez, F., "Road Map and Technology Trends for Vehicle Engine Cooling Fan Speed Control," SAE Technical Paper 2011-01-1334, 2011, https://doi.org/10.4271/2011-01-1334.Also In
References
- Sound Pressure Level Measured from Vehicle Exterior at Low and High Fan Speeds Hackney, Lisa Noise and Vibration Project Engineer General Motors August 2010
- April 2009 Wikepedia
- Mikhaeil-Boules, N. Lockwood, T.K. Vazquez, F. “Systems Considerations in Implementing Brushless Motor Technology for Engine Cooling Fan Applications,” SAE Technical Paper Offer 11HX-0042 2011