PROBLEM TO BE SOLVED: To provide an abnormality detection device and an abnormality detection method for a right-left wheel drive device that enable a bearing and a group of gears in which abnormalities have occurred to be easily and inexpensively discriminated.SOLUTION: The right-left wheel drive device comprises two drive sources which are mounted to a vehicle, and can be independently controlled, and a reduction gear which is arranged between the two drive sources and right and left driving wheels, amplifies a difference of torque which is imparted from the two drive sources, and transmits it to the right-left wheels. An abnormality detection device 68 for the right-left wheel drive device has vehicle condition detection means 73 for determining whether the vehicle is in a straight traveling state or in a turning state, and abnormality region discrimination means 74 for discriminating whether or not an abnormality occurs in a first mechanical element group, and whether or not an abnormality occurs in a second mechanical element groove from a vibration measurement value output from a vibration sensor 70 when the vehicle is in the straight traveling state, and a vibration measurement value output from the vibration sensor 70 when the vehicle is in the turning state.SELECTED DRAWING: Figure 7
【課題】異常が生じた軸受および歯車の群を容易かつ安価に判別することができる左右輪駆動装置の異常検出装置および異常検出方法を提供する。【解決手段】左右輪駆動装置は、車両に搭載され独立して制御可能な二つの駆動源と、二つの駆動源と左右の駆動輪との間に設けられ、二つの駆動源から与えられるトルクの差を増幅し左右の駆動輪にそれぞれ伝達する減速装置とを備える。左右輪駆動装置の異常検出装置68は、車両が直進状態であるか旋回状態であるかを判定する車両状態判定手段73と、車両が直進状態であるとき振動センサ70から出力される振動測定値、および車両が旋回状態であるとき振動センサ70から出力される振動測定値から、第1の機械要素群に異常が生じているか否か、第2の機械要素群に異常が生じているか否かを判別する異常部位判別手段74とを有する。【選択図】図7
ABNORMALITY DETECTION DEVICE AND ABNORMALITY DETECTION METHOD FOR RIGHT-LEFT WHEEL DRIVE DEVICE
左右輪駆動装置の異常検出装置および異常検出方法
2018-03-29
Patent
Electronic Resource
Japanese
IPC: | G01H MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES , Messen von mechanischen Schwingungen oder Ultraschall-, Schall- oder Infraschallwellen / 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 |
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