PROBLEM TO BE SOLVED: To provide a drive control device of a wheel independent drive type vehicle, which decreases unintentional braking on the vehicle without complicating the structure.SOLUTION: A drive control device 20 is mounted on a vehicle provided with right and left motors 6 which individually drive right and left drive wheels, and comprises an ECU 21 and inverter devices 22. Abnormality detection means 34 is provided in each drive system and detects abnormality occurring in the drive system. Abnormality-responding torque distribution change means 35 is provided for, when a control signal from the inverter device 22 to the motor 6 in the drive system on which abnormality is detected, is stopped, calculating regenerative torque generated by the motor 6 in the drive system on which abnormality is detected, on the basis of a relation between power supply voltage for motor drive and motor rotation speed, and distributing torque which is reverse to the regenerative torque and is calculated based on the absolute value of the regenerative torque, to the motors 6 in the drive system on which no abnormality is detected.SELECTED DRAWING: Figure 3
【課題】構造を複雑化することなく、車両に意図しないブレーキがかかることを低減する車輪独立駆動式車両の駆動制御装置を提供する。【解決手段】駆動制御装置20は、左右の駆動輪を個別に駆動する左右のモータ6を備えた車両に搭載され、ECU21と、インバータ装置22とを備える。駆動系統毎に設けられ、この駆動系統に生じた異常を検出する異常検出手段34を設ける。異常が検出された駆動系統におけるインバータ装置22からモータ6への制御信号が停止したとき、モータ駆動用の電源電圧とモータ回転数との定められた関係に基づき、異常が検出された駆動系統におけるモータ6が発生する回生トルクを算出し、この回生トルクに対し逆向きで、かつ、この回生トルクの絶対値に基づき求められるトルクを、異常が検出されない駆動系統におけるモータ6に分配する異常対応トルク配分変更手段35を設ける。【選択図】図3
DRIVE CONTROL DEVICE OF WHEEL INDEPENDENT DRIVE TYPE VEHICLE
車輪独立駆動式車両の駆動制御装置
2017-01-05
Patent
Elektronische Ressource
Japanisch
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 / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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