Patent ID: 11904726
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 16:
17. A method for controlling an accessory power module including DC-to-DC electric power converter having a plurality of primary power switches, a transformer, and a plurality of secondary rectifiers, wherein the plurality of primary power switches are electrically connected to a high voltage input filter downstream from a high-voltage bus, the method comprising:
dynamically monitoring, via a peak detector circuit, a ripple voltage on the high-voltage bus multiplied by an AC gain of the high voltage input filter;
comparing the ripple voltage on the high-voltage bus multiplied by the AC gain of the high voltage input filter with a maximum threshold voltage for the plurality of primary power switches; and
disabling the plurality of primary power switches when the ripple voltage on the high-voltage bus multiplied by the AC gain of the high voltage input filter is greater than the maximum threshold voltage.