A System and Method for Reducing Torque Ripples in Electric Vehicles In an electric vehicle (10), the system includes a traction motor (250), a motor controller (200), a machine learning (SML) unit (320) and an excitation unit (340). The motor controller (200) is configured to determine a set of first rotor values (d1, q1) that includes a first magnetic flux value (id1) and a first rotor angle value (iq1). The machine learning unit (320) includes a ripple identification table (322) including a set of second rotor values for which torque ripple does not occur. The machine learning unit (320) is configured for predicting at least one time instant when a torque ripple will occur based upon a comparison between the set of first and second rotor values in the ripple identification table (322). The excitation unit (340) is configured for performing excitation at the at least one predicted time instant based upon a throttle demand and the comparison.
A SYSTEM AND METHOD FOR REDUCING TORQUE RIPPLES IN ELECTRIC VEHICLES
SYSTEM UND VERFAHREN ZUR REDUZIERUNG VON DREHMOMENTSCHWANKUNGEN IN ELEKTROFAHRZEUGEN
SYSTÈME ET PROCÉDÉ DE RÉDUCTION D'ONDULATION DE COUPLE DANS DES VÉHICULES ÉLECTRIQUES
2024-05-29
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
A METHOD FOR REDUCING TORQUE RIPPLES IN A TRACTION MOTOR AND A SYSTEM THEREOF
European Patent Office | 2024
|Induction Motor DTC Performance Improvement by Reducing Flux and Torque Ripples in Low Speed
BASE | 2022
|Torque Ripples in Electric Vehicle Drive Quality in Open and Closed Loop Control Environments
British Library Conference Proceedings | 2021
|Torque Ripples in Electric Vehicle Drive Quality in Open and Closed Loop Control Environments
SAE Technical Papers | 2021
|