System and method for damping of mechanical oscillaton of a rotor of an electric machine in a vehicle
US11750132B2 · kind B2 · utility
1Cited by
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20Claims
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Key dates
| Filing date | Dec 10, 2021 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Dec 10, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An inverter system for mitigating oscillation of an electric motor that drives a load comprises a torque command generation module for receiving a commanded torque from an operator of a vehicle. A torque damping module is configured to receive the commanded torque and generating a commanded compensating torque to dampen any mechanical oscillation or resonance of the electric motor based on the observed rotational speed of the motor. The torque damping module further comprises a digital filter of order greater than one, a gain adjuster and a limiter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.