A method for determining a motor current of an electric motor drive with a power source and with an electric motor and with a power converter connected therebetween, wherein an input current of the power source is converted by a pulse width modulated control of a number of semiconductor switches of the power converter into the motor current, wherein an intermediate circuit current of an intermediate circuit of the power source is influenced during the pulse width modulated control of the semiconductor switches, wherein an inductive voltage change is detected at a measuring point of the intermediate circuit due to the influence on the intermediate circuit current, and wherein a value for the generated motor current is determined based on the pulse width modulated control of the semiconductor switches and the inductive voltage change detected at the measuring point.
METHOD FOR DETERMINING A MULTIPHASE MOTOR CURRENT AND ELECTRIC MOTOR DRIVE
2018-05-17
Patent
Electronic Resource
English
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
Method for determining a multiphase motor current and electric motor drive
European Patent Office | 2019
|Multiphase induction motor drive for gearless electric vehicles
European Patent Office | 2024
|MULTIPHASE INDUCTION MOTOR DRIVE FOR GEARLESS ELECTRIC VEHICLES
European Patent Office | 2022
|ELECTRIC MOTOR DRIVE DEVICE, AND ELECTRIC MOTOR DRIVE METHOD
European Patent Office | 2024
|ELECTRIC MOTOR DRIVE DEVICE, AND ELECTRIC MOTOR DRIVE METHOD
European Patent Office | 2023
|