CONTROL DEVICE OF VEHICULAR DRIVE APPARATUS

• Main Authors: ICHIOKA EIJI, NISHIMINE AKIKO
• Format: Patent
• Language: English; Japanese
• Published: 24.08.2017
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLES IN GENERAL

PROBLEM TO BE SOLVED: To provide a control device which, even at low vehicle speed, can secure an oil quantity by an electric oil pump, while making noise generated from the electric oil pump inconspicuous.SOLUTION: The rotation speed of an electric oil pump when an accelerator opening is within a predetermined range is controlled to a rotation speed which is lower than the rotation speed of the electric oil pump when an accelerator opening is out of the predetermined range. When the outside of the predetermined range of accelerator opening is set at a region where noise generated in other than the electric oil pump is large, in this region, if the rotation speed of the electric oil pump becomes high, the noise generated in the electric oil pump becomes inconspicuous under cover of the noise generated in other than the electric oil pump.SELECTED DRAWING: Figure 4 【課題】低車速であっても、電動オイルポンプから発生するノイズを目立たなくしつつ、電動オイルポンプによる油量を確保できる制御装置を提供する。【解決手段】アクセル開度が所定範囲内の場合の前記電動オイルポンプの回転速度が、アクセル開度が所定範囲外の場合の電動オイルポンプの回転速度よりも低い回転速度に制御される。アクセル開度の所定範囲外が、電動オイルポンプ以外で発生するノイズが大きい領域に設定されると、この領域では、電動オイルポンプの回転速度が高くなっても、電動オイルポンプで発生するノイズが電動オイルポンプ以外で発生するノイズに紛れて目立たなくなる。【選択図】図４