US 2026/0084571 A1 · SYSTEM AND METHOD FOR DIAGNOSING AND EVALUATING A STATE OF A BATTERY

Abstract

A method and system for diagnosing and evaluating a state of battery. The system for diagnosing and evaluating a state of an electric vehicle battery includes: a charging/discharging system that provides a direct high-voltage path for simultaneous charging and discharging between a diagnosis target vehicle (EV1) and a center vehicle (EV2), and a diagnostic device that obtains vehicle data corresponding to each of the charging and discharging from the EV1 through diagnostic communication and diagnoses and evaluates a state of a battery of the EV1 based on the vehicle data. In particular, energy discharged from a battery of the EV2 is charged to the battery of the EV1 through the charging/discharging system after energy discharged from the battery of the EV1 is charged to the battery of the EV2 through the charging/discharging system.

Claims20

Dependent claims

A system for diagnosing and evaluating a state of a battery, the system comprising:

a charging and discharging system configured to provide a direct high-voltage path for charging and discharging between a diagnosis target vehicle and a center vehicle;
and
a diagnostic device configured to
obtain, from the diagnosis target vehicle through diagnostic communication, vehicle data corresponding to each of charging and discharging, and
diagnose and evaluate a state of a battery of the diagnosis target vehicle based on the vehicle data,
wherein energy discharged from a battery of the center vehicle is charged to the battery of the diagnosis target vehicle through the charging and discharging system after energy discharged from the battery of the diagnosis target vehicle is charged to the battery of the center vehicle through the charging and discharging system.

3 more elements

A method of diagnosing and evaluating a state of a battery, the method comprising:

generating, by a charging and discharging system, a direct high-voltage path for charging and discharging between a diagnosis target vehicle and a center vehicle;
obtaining, by a diagnostic device and from the diagnosis target vehicle through diagnostic communication, vehicle data corresponding to each of the charging and discharging;
and
diagnosing and evaluating, by the diagnostic device, a state of a battery of the diagnosis target vehicle based on the vehicle data,
wherein energy discharged from a battery of the center vehicle is charged to the battery of the diagnosis target vehicle through the charging and discharging system after energy discharged from the battery of the diagnosis target vehicle is charged to the battery of the center vehicle through the charging and discharging system.

2 more elements

Dependencies are inferred from the claim text.

System and method for diagnosing and evaluating a state of a battery

Life of this patent

System and method for diagnosing and evaluating a state of a battery

Life of this patent

Abstract

Claims20