Faraday & Future Inc.

Garrett David Heinen

Phillip John Weicker

Anil Paryani

Nabiha Naquib Iqra

Certain embodiments are described that provide a method for measuring battery parameters under discharge/charge. (a) A battery at rest is provided having an initial State of Charge (SoC). (b) A discharge/charge excitation is applied for a first period of time. (c) The battery is allowed to rest for a second period of time. (d) A discharge/charge is applied, having a higher current and shorter duration than the discharge/charge of step (b). (e) The battery is allowed to rest for a third period of time. (f) Steps (b)-(d) are repeated. Parameters of the battery are measured during a plurality of the steps.

Method for measuring battery parameters under discharge or charge

Systems and methods for monitoring and controlling a battery are disclosed. Systems can include a battery having an output voltage and an output current when delivering power, a load driven by power delivered from the battery, battery output voltage and current sensing circuits, and processing circuitry coupled to the battery output voltage and current sensing circuits. The processing circuitry may be configured to obtain sensed battery output voltage and current values, and to estimate values for at least three battery state parameters by concurrently fitting the voltage and current values to at least two different equations.

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San Luis Obispo, CA, United States of America

Garrett David Heinen