Faraday & Future Inc.

Coda Energy Holdings LLC

Anthony Sansone

Phillip John Weicker

Michael Hong

Peter Fredrick Nortman

Long Phi Huynh

Daniel A Sufrin-Disler

William G Norris

A battery system of an electric vehicle is disclosed. The battery system can include at least a first battery string including a number of battery modules, wherein the first battery string has an output that is coupled to the first power bus through a string switch, and wherein each of battery modules includes a plurality of battery cells connected in series. The battery system can also include a number of battery module monitors, wherein each of the battery module monitors is coupled to the battery cells of a corresponding one of the battery modules. The battery system can further include module monitor protection circuitry coupled to each of the battery module monitors, wherein the module monitor protection circuitry includes a plurality of protection circuits.

Battery monitor protection

A system for making high voltage measurements to measure a voltage of a battery pack and detect of an isolation fault. The system includes a first resistive divider comprising at least a first resistive element and a second resistive element. The system also includes a second resistive divider comprising the second resistive element and a third resistive element. The system also includes a plurality of switches comprising a first switch and a second switch coupled between the second resistive element and the battery pack. The system further includes a controller configured to control the plurality of switches to operate in first mode to measure the voltage of the battery pack based on a voltage produced by the first resistive divider, and to control the plurality of switches to operate in at least a second mode to detect an isolation fault based on a voltage produced by the second resistive divider.

Measuring isolated high voltage and detecting isolation breakdown with measures for self-detection of circuit faults

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Burbank, CA, United States of America

Anthony Sansone