In one aspect, a system for torsional damping of electric traction drives comprises dual Kalman filters to correct for oscillations based on measured traction motor speed and commanded traction motor torque. A first Kalman filter can perform a state space estimate of the shaft torque providing negative feedback to the final torque command in order to eliminate resonant components from the commanded torque and quickly damp external disturbances. A second Kalman filter provides a state space estimation of the load torque or, equivalently, load acceleration. This second Kalman filter can ignore commanded torque and can provide a damping feedback when the wheel speed deviates from the vehicle speed.
DUAL KALMAN FILTER FOR TORSIONAL DAMPING OF ELECTRIC TRACTION DRIVES
DOPPEL-KALMAN-FILTER ZUR DREHSCHWINGUNGSDÄMPFUNG VON ELEKTRISCHEN TRAKTIONSANTRIEBEN
FILTRE DE KALMAN DOUBLE POUR AMORTISSEMENT DE TORSION D'ENTRAÎNEMENTS DE TRACTION ÉLECTRIQUE
2021-04-07
Patent
Elektronische Ressource
Englisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
DUAL KALMAN FILTER FOR TORSIONAL DAMPING OF ELECTRIC TRACTION DRIVES
Europäisches Patentamt | 2018
|Dual Kalman Filter For Torsional Damping of Electric Traction Drives
Europäisches Patentamt | 2016
|DUAL KALMAN FILTER FOR TORSIONAL DAMPING OF ELECTRIC TRACTION DRIVES
Europäisches Patentamt | 2015
|Dual kalman filter for torsional damping of electric traction drives
Europäisches Patentamt | 2018
|