| Budget Amount *help |
¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1990: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1989: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Research Abstract |
With the expansion of farmland scale and spread of acceptance and trust of farm work, the acreages and working time operated by tractors will increase year by year. In such case, without the proper determination of engine speed or running velocity, there will arise uneconomical fuel consumption and a decrease of work efficieny.
The objective of this study is to establish a simple and cheap detection method of tractor engine output during farm work for the purpose of monitoring (1) Is the engine speed appropriate to its load ? or (2) Is there room for increasing tractor velocity to its load ?
In this study, a thermocouple was used to detect temperature of exhaust gas. The temperature of exhaust gas was proved to have a definite relationship with engine output under the steady load, however, under transient load conditions as sudden change of loads, it took much settling time and showed characteristic hysterisis with increase and decrease of temperature. By considering the data obtained in the experiments, it was found that the decrease of engine speed from no-load engine revolution represents the output of engine and it is a more stable, simple and cheap method for the detection ofgine output.
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