1404 電気機関車の空転頻度低減制御(制御伝送・粘着/ブレーキ制御,SS1:高度化,高速化,第18回交通・物流部門大会(TRANSLOG2009))

概要

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When a wheel slip occurs on a certain axle or when re-adhesion control is executed, the tractive force of the wheel-slip axle changes and a rotating moment acts, which causes pitching of the bogie and the carbody that receives the tractive force. As a result, a change occurs in the weight acting on other axles in adhesion status, and wheel slips are likely to be induced. If re-adhesion control can be conducted in consideration of changes in the weight acting on other axles as a result of axle-weight transfer from the wheel-slip axle, the use of adhesive force can be optimized. We developed a control system designed to reduce the induction of wheel slip in consideration of axle-weight changes caused by other wheel slips. Specifically, the torque of other axles is increased or decreased based on the acceleration of the wheel-slip axle to suppress the induction of wheel slip. The control method was applied to an EH200-type DC electric locomotive, constituting a re-adhesion control system that suppress the induction of wheel slip. To verify the effectiveness of the control method, we conducted a water spring wheel-slip test. We obtained the results that the number of wheel slips decreases by about 20% on average, and that the average tractive effort increases by 4%.
2009-12-02