PROBLEM TO BE SOLVED: To provide an abnormality detection device of an electric vehicle capable of quickly detecting that an abnormality has occurred and easily detecting an abnormality occurrence point thereof, relating to a motor/reduction gear unit in which a motor and a reduction gear are integrally provided.SOLUTION: An abnormality detection device 50 includes a motor/reduction gear unit Gu equipped with a motor 1 for driving a wheel and a reduction gear 2 which is provided integrally with the motor 1 and reduces rotation of the motor 1 for transmission of it to a wheel. When a value in a specific frequency region of the vibration information measured with a vibration sensor Sa becomes larger than a threshold value that is set, an abnormality detection means 48 detects occurrence of abnormality at the motor/reduction gear unit Gu, and discriminates whether the motor 1 is at the abnormality occurrence point or the reduction gear 2 is at that, point for detection.
【課題】モータと減速機とが一体に設けられたモータ・減速機ユニットにおいて、異常が発生したことを迅速に検知し、且つ、その異常発生箇所を簡易に特定することができる電動車両の異常検知装置を提供する。【解決手段】この異常検知装置50は、車輪を駆動するモータ1と、モータ1と一体に設けられ、モータ1の回転を減速して車輪に伝達する減速機2とを有するモータ・減速機ユニットGuを備える。振動センサSaで測定された振動情報の特定の周波数領域における値が設定された閾値よりも大きくなったとき、モータ・減速機ユニットGuに異常が発生したことおよびその異常発生箇所を、モータ1であるか減速機2であるかを区別して検出する異常検出手段48を設けた。【選択図】図3
ABNORMALITY DETECTION DEVICE OF ELECTRIC VEHICLE
電動車両の異常検知装置
2015-06-25
Patent
Electronic Resource
Japanese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F16H Getriebe , GEARING |
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