ROTARY ELECTRIC MACHINE CONTROL DEVICE
A current detection unit includes current detection elements provided to phases on a high potential side of an upper arm element or on a low potential side of a lower arm element. A detection target element is the upper arm element or the lower arm element to which the current detection elements are...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | English |
Published |
14.07.2022
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | A current detection unit includes current detection elements provided to phases on a high potential side of an upper arm element or on a low potential side of a lower arm element. A detection target element is the upper arm element or the lower arm element to which the current detection elements are provided. A target duty is a duty ratio of the detection target element. The control unit includes a current acquisition unit, an energization control unit, and an abnormality determination unit. The current acquisition unit acquires a current detection value from the current detection unit. The abnormality determination unit performs an abnormality determination based on the current detection value. The abnormality determination unit varies a determination threshold, which is used for the abnormality determination based on the current detection value, according to the target duty. |
---|---|
Bibliography: | Application Number: US202217657068 |