電気補機のアクティブトルク制御による自動車アイドリング振動低減

概要

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A method for reducing vehicle idling vibration caused by engine torque variation due to individual cylinder combustion has been theoretically deduced and experimentally confirmed. Electric machine torque is actively controlled to reduce acceleration variation of the crankshaft, so that the electric machine torque and the engine torque variation cancel each other. The result is reduced crankshaft rotational speed variation and engine and vehicle vibration. Since, in general, the engine torque variation increases with engine load, it is desirable to use electric machines such as a motor generator, that can provide torque to the engine as well as take torque away to achieve better vibration reduction than machines that only absorb the engine torque, such as an alternator. Experimental results using test cars with four-cylinder engines validate the control concepts and clearly show the effectiveness of the control method for vibration reduction.
社団法人日本機械学会の論文
1993-04-25