PROBLEM TO BE SOLVED: To provide an abnormality detection device for right and left wheel driving devices capable of detecting abnormality at a gear of a gear device from beginning of occurrence of abnormality in a precise manner, an abnormality detection method and a vehicle with this abnormality detection device.SOLUTION: An abnormality detection device 68 for right and left wheel driving devices comprises two electric motors that are installed at a vehicle and can be controlled independently; and a speed reducer that is installed between these electric motors and the right and left driving wheels, amplifies a difference of torques given by said two electric motors and transmits it to each of said right and left driving wheels. An abnormality detection device 68 comprises a rotation speed difference calculating means 74 and a judgement means 76. The rotation speed difference calculating means 74 calculates a rotational speed difference between the right and left driving wheels. The judgement means 76 judges whether or not the calculated rotational speed difference becomes more than threshold periodically. When the rotational speed difference becomes more than threshold periodically, the judgement means 76 judges that abnormality is generated at the gear device.SELECTED DRAWING: Figure 7
【課題】歯車装置の歯車の異常を異常発生の初期から精度良く検出することができる左右輪駆動装置の異常検出装置、異常検出方法およびこの異常検出装置を備えた車両を提供する。【解決手段】左右輪駆動装置の異常検出装置68は、車両に搭載され独立して制御可能な二つの電動モータと、これら電動モータと左右の駆動輪との間に設けられ、前記二つの電動モータから与えられるトルクの差を増幅し前記左右の駆動輪にそれぞれ伝達する減速装置とを備える。異常検出装置68は、回転速度差算出手段74および判定手段76を備える。回転速度差算出手段74は、左右の駆動輪の回転速度差を算出する。判定手段76は、算出された回転速度差が、周期的に閾値以上となるか否かを判定する。判定手段76は、回転速度差が周期的に閾値以上となるとき、歯車装置に異常が生じていると判定する。【選択図】図7
ABNORMALITY DETECTION DEVICE FOR RIGHT AND LEFT WHEEL DRIVING DEVICE, ABNORMALITY DETECTION METHOD AND VEHICLE WITH THIS ABNORMALITY DETECTION DEVICE
左右輪駆動装置の異常検出装置、異常検出方法およびこの異常検出装置を備えた車両
2018-07-05
Patent
Elektronische Ressource
Japanisch
IPC: | F16H Getriebe , GEARING / 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 |
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