CONTROL DEVICE OF ELECTRIC VEHICLE

• Main Authors: OKUDA KOICHI, IMAI KEITA, IMAMURA TATSUYA, TABATA ATSUSHI, MATSUBARA TORU, KITAHATA TAKESHI, HIASA YASUHIRO
• Format: Patent
• Language: English; Japanese
• Published: 26.01.2017
• 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; BLASTING; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To surely avoid a so-called single phase lock state of an electric motor being a drive force source of an electric vehicle.SOLUTION: A control device of an electric vehicle comprises a transmission path for transmitting a drive force which is outputted by a drive source including an electric motor to a drive wheel. A power transmission mechanism including a fluid joint which is connected to the electric motor and an engagement mechanism is arranged in the transmission path. When a motion state of the electric motor is brought into a motion state that a thermal load which is generated in the electric motor within a preset prescribed period reaches a prescribed value (step S1), a controller for controlling the power transmission mechanism performs slip control for making a rotation number of the electric motor reach a high rotation number generated by a rotation number at a time point at which the thermal load reaches a prescribed value or larger (step S4), and increases the relative rotation of the fluid joint.SELECTED DRAWING: Figure 2 【課題】電動車両の駆動力源である電動機のいわゆる単相ロック状態を確実に回避する。【解決手段】電動機を含む駆動力源が出力した駆動力を駆動輪に伝達する伝動経路を備えた電動車両の制御装置であって、電動機に連結された流体継手と係合機構とを含む動力伝達機構が、伝達経路中に設けられ、動力伝達機構を制御するコントローラは、電動機の動作状態が予め定めた所定期間内に電動機で発生する熱負荷が所定値以上になる動作状態となる場合（ステップＳ１）に電動機の回転数が、熱負荷が所定値以上になる動作状態になって時点の回転数よる高回転数なるスリップ制御（ステップＳ４）を行って流体継手の相対回転を増大させるように構成されている。【選択図】図２