PROBLEM TO BE SOLVED: To provide a control device of an electric vehicle which can suppress the insulation breakdown of an electric traveling motor, and can suppress the lowering of the traveling performance of the electric vehicle.SOLUTION: A control device of an electric vehicle has voltage control means 111 for performing boosting control for boosting voltage applied to a traveling motor 12 by a boosting converter 16 to a preset threshold voltage V1 or higher, and measurement means 112 for measuring a specified boosting time Tc being a time at which the boosting control is performed by the voltage control means 111 under a prescribed condition. When an accumulated boosting time T(n) being the sum of the specified boosting time Tc exceeds a preset threshold time T1, the voltage control means 111 stops the execution of the boosting control, and performs voltage suppression control for lowering the voltage applied to the traveling motor 12 to the threshold voltage V1 or lower.SELECTED DRAWING: Figure 1
【課題】電走行用モータの絶縁破壊を抑制することができ、且つ電動車両の走行性能の低下を抑制することができる電動車両の制御装置を提供する。【解決手段】昇圧コンバータ16により走行用モータ12に印加する電圧を予め設定された閾値電圧V1以上に昇圧させる昇圧制御を実行する電圧制御手段111と、所定条件下で電圧制御手段111によって昇圧制御が実行されている時間である特定昇圧時間Tcを計測する計測手段112と、を有し、電圧制御手段111は、特定昇圧時間Tcの合計である累積昇圧時間T(n)が予め設定された閾値時間T1を超えると昇圧制御の実行を中止し、走行用モータ12に印加する電圧を閾値電圧V1以下まで低下させる電圧抑制制御を実行する構成とする。【選択図】図1
CONTROL DEVICE OF ELECTRIC VEHICLE
電動車両の制御装置
2017-09-07
Patent
Elektronische Ressource
Japanisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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