CONTROL SYSTEM AND CONTROL METHOD FOR FAN
PROBLEM TO BE SOLVED: To provide a control system and a method for controlling the speed of a plurality of fans for cooling a plurality of fluids in a working machine. SOLUTION: Speed of respective fans 10, 12 are controlled according to an individual heat dissipating demand of heat transmitting cor...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
27.07.2001
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide a control system and a method for controlling the speed of a plurality of fans for cooling a plurality of fluids in a working machine. SOLUTION: Speed of respective fans 10, 12 are controlled according to an individual heat dissipating demand of heat transmitting cores 16, 18, 20 cooled by each fan, and a control system includes a plurality of sensors for outputting signals for showing the temperature of each fluid, and an electronic controller connected to a plurality of sensors. On the basis of those temperature signals, an ECM, decides on the temperature error corresponding to each fluid. A signal, showing fan speed which is desired for each fan on the basis of at least some comparisons in temperature error signals as decided by signals of a plurality of sensors, is outputted to a plurality of fans for controlling speed in a plurality of fans by the controller. |
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Bibliography: | Application Number: JP20000383436 |