PROBLEM TO BE SOLVED: To relatively quickly determine whether or not there is possibility that allophone is generated in a power transmission mechanism which connects a rotary shaft of an internal combustion engine to a drive shaft.SOLUTION: An allophone detection device 11 for detecting allophone generated in a power transmission mechanism TA comprises: acquisition means 111 which acquires an angular acceleration dω of a rotary shaft 21 of an inter combustion engine ENG or an input shaft 35 of the power transmission mechanism; and determination means 112 determines that a state of the power transmission mechanism is a normal state in which allophone is not generated in the case (i) that an angular acceleration, which has once null crossed, null crosses again within a prescribed time TH, and determines that the state is an abnormal state that there is possibility that allophone is generated in the case (ii) that the angular acceleration, which has once null crossed, does not null cross again within the prescribed time.SELECTED DRAWING: Figure 3
【課題】内燃機関の回転軸を駆動軸に連結する動力伝達機構に異音が発生する可能性があるか否かを相対的に迅速に判定する。【解決手段】異音検出装置11は、動力伝達機構TAに発生する異音を検出する異音検出装置であって、内燃機関ENGの回転軸21又は動力伝達機構の入力軸35の角加速度dωを取得する取得手段111と、(i)一旦ゼロクロスした角加速度が、所定時間TH以内に、再度ゼロクロスする場合には、動力伝達機構の状態が、異音が発生しない正常状態であると判定し、(ii)一旦ゼロクロスした角加速度が、所定時間以内に再度ゼロクロスしない場合には、動力伝達機構の状態が、異音が発生する可能性がある異常状態であると判定する判定手段112とを備える。【選択図】図3
ALLOPHONE DETECTION DEVICE
異音検出装置
2018-05-17
Patent
Electronic Resource
Japanese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen |
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