In-vehicle electric motor control device
US10131352B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Jan 21, 2016 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | Jan 21, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A CPU drives an inverter based on a command rotation speed that is inputted from a higher level ECU at a predetermined update interval. The CPU acquires an actual rotation speed of the electric motor, and calculates an accelerated rate and a decelerated rate based on the update interval and a difference between the actual rotation speed and the command rotation speed such that the actual rotation speed changes without reaching the command rotation speed and becoming constant before an end of the update interval. The CPU drives the inverter such that the electric motor rotates at the calculated rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.