US 11,906,587 B2 · Non-charging based battery monitoring and characterization

Abstract

A battery characterization system includes a drive-sense circuit (DSC), memory that stores operational instructions, and processing module(s) operably coupled to the DSC and the memory. Based on a reference signal, the DSC generates a charge signal, which includes an AC (alternating current) component, and provides the charge signal to a terminal of a battery via a single line and simultaneously to senses the charge signal via the single line to detect an electrical characteristic of the battery based on a response of the battery. The DSC generates a digital signal representative of the electrical characteristic of the battery. The processing module(s), based on the operational instructions, generate the reference signal to include a frequency sweep of the AC component of the charge signal (e.g., different frequencies at different times or multiple frequencies simultaneously) and processes the digital signal to characterize the battery across the different respective frequencies and generate spectrum analysis (SA) information of the battery.

Claims20

Dependent claims

A battery characterization system comprising:

a drive-sense circuit (DSC) connected via a single line to a terminal of a battery, wherein, when enabled, the DSC configured to:
generate a monitoring signal that includes an AC (alternating current) component based on a reference signal;
provide, during non-charging operation of the battery, the monitoring signal to the terminal of the battery via the single line and simultaneously to sense the monitoring signal via the single line, wherein sensing of the monitoring signal includes detection of an electrical characteristic of the battery that is based on a response of the battery to the monitoring signal;
and
generate a digital signal representative of the electrical characteristic of the battery that is based on the response of the battery to the monitoring signal;
memory that stores operational instructions;
and
one or more processing modules operably coupled to the DSC and the memory, wherein, when enabled, the one or more processing modules configured to execute the operational instructions to process the digital signal to determine the electrical characteristic of the battery that is based on the response of the battery to the monitoring signal.

5 more elements

A battery characterization system comprising:

a drive-sense circuit (DSC) operably coupled to a terminal of a battery, wherein, when enabled, the DSC configured to:
receive a reference signal;
generate a monitoring signal that includes an AC (alternating current) component based on the reference signal, wherein the monitoring signal includes a DC component of at least one of 0 volts or 0 amps;
provide, during non-charging operation of the battery, the monitoring signal to the terminal of the battery via a single line and simultaneously to sense the monitoring signal via the single line, wherein sensing of the monitoring signal includes detection of an electrical characteristic of the battery that is based on a response of the battery to the monitoring signal;
and
generate a digital signal representative of the electrical characteristic of the battery that is based on the response of the battery to the monitoring signal;
memory that stores operational instructions;
and
one or more processing modules operably coupled to the DSC and the memory, wherein, when enabled, the one or more processing modules configured to execute the operational instructions to:
generate the reference signal;
provide the reference signal to the DSC;
and
process the digital signal to determine the electrical characteristic of the battery that is based on the response of the battery to the monitoring signal.

10 more elements

Dependencies are inferred from the claim text.

Non-charging based battery monitoring and characterization

Life of this patent

Non-charging based battery monitoring and characterization

Life of this patent

Abstract

Claims20