POWER GENERATION CONTROLLER OF ELECTRIC VEHICLE

PROBLEM TO BE SOLVED: To provide a power generation controller of an electric vehicle which suppresses natural vibrations upon acceleration and upon the inputting of turbulence while the inputting and outputting of a battery is set to be zero as it is upon power generation during direct power distribution at a low temperature.SOLUTION: In an engine torque and a power generator rotation speed which generate necessary power with the most excellent fuel consumption, the engine torque is used for engine control and the power generator rotation speed contributes to determination of a power generation torque Tg*. A first power generation torque instruction value Tg1* for removing a deviation with respect to a target value of a power generator rotation speed measurement ωg is transferred into a motor driving torque Tm_est on a block 54, the sum value Tm_est* of a vibration control FF post-filtering motor driving torque estimation value Tm_est_FF* obtained by causing the motor driving torque Tm_est to pass through a vibration control FF filter and a vibration control FB post-filtering motor driving torque estimation value Tm_est_FB* obtained by causing motor rotation speed turbulence deviation ωm determined on blocks 56, 57 to pass through a vibration control FB filter 58 is divided by a power generation driving conversion coefficient on a divider 60 and, thereby, a final power generation torque instruction value Tg* is calculated. 【課題】低温下のダイレクト配電中の発電時に、バッテリ入出力を0にしたまま、加速時および外乱入力時の固有振動の抑制をする。【解決手段】必要電力を最良燃費で発電するエンジントルクおよび発電機回転速度のうち、前者はエンジン制御に用い、後者は発電トルクTg*の決定に資する。ブロック54で発電機回転速度計測値ωgの目標値に対する偏差を無くするための第1発電トルク指令値Tg1*をモータ駆動トルクTm_estに変換し、これを制振FFフィルタに通して得られた制振FFフィルタ処理後モータ駆動トルク推定値Tm_est_FF*と、ブロック56,57で求めたモータ回転速度外乱偏差 ωmを制振FBフィルタ58に通して得られる制振FBフィルタ処理後モータ駆動トルク推定値Tm_est_FB*との和値Tm_est*を、除算器60において発電駆動変換係数 で除算することにより、最終的な発電トルク指令値Tg*を算出する、【選択図】図７