Fan Noise Prediction for Off-Highway Vehicle

Werne, Dirk von; Chaduvula, Prasanna; Stahl, Patrick; Jordan, Michael Guilherme; Huber, Jamison; Kucukcoskun, Korcan; Niculescu, Mircea

doi:10.4271/2017-01-1834

Cited by 1 publication

(1 citation statement)

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“…Blair [6] explored the benefit of viscous fan clutch with continuous variable speed for engine cooling system resulting improved overall fuel efficiency and reducing fan noise of the engine. Noise comparison studied through experimental models carried out by Werne et al, Gurav et al, and Mugridge [7][8][9][10] reveal that frequent shift from low to high speed creates higher frequency, compared to smooth proportional increase in fan speed. The current definition of fan in cooling system utilizes portion of engine power to run, thus, influencing the fuel consumption and contributing to NVH level of vehicle, which is critical to passengers' comfort.…”

Section: Introductionmentioning

confidence: 99%

Use of electronic viscous drive to optimize fan duty cycle

Ramdas

Dey

2022

Eng. Res. Express

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The Electronic Viscous Fan Drive Clutch is one of the key components of cooling system in automotive sectors. It is more efficient than the current traditional bimetal operated Mechanical Viscous Fan Drive Clutch in terms of fan power consumption. The comparative change in fan power with both fan drives is studied and it is observed that with electronic fan clutch 86% reduction in fan power is achieved. In the current study an attempt is made to demonstrate the improvement in the cooling system in terms of ambient temperature of air and the coolant temperature. This is achieved through the complete driving cycles by maintaining unvarying temperature. Standard rise over ambient vehicle test with support of Vector CANapeis utilised for testing and data recording. With use of electronic viscous fan drive there is direct proportional relation between coolant temperature and fan rpm. It alsoindicates that the system level temperaturesare optimized to achieve higher efficiency in terms of thermal and fuel economy.

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