公开(公告)号：US20230137357A1

公开(公告)日：2023-05-04

申请号：US17515830

申请日：2021-11-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sumit Chopra ,  Matthew L. Ehrenfeld ,  Orlando Ward-Santos

IPC: B60L53/66 ,  B60L58/12 ,  B60L53/62 ,  H02J7/00

Abstract: Presented are closed-loop feedback control systems for preconditioning batteries, methods for making/using such systems, and electric-drive vehicles with battery preconditioning capabilities. A method for operating a battery system of a motor vehicle includes a system controller receiving a recharge signal to schedule a recharge event for a battery of the vehicle. The system controller responsively derives a target preconditioning temperature for optimizing the battery recharge event, and determines the battery state of voltage or charge for at the vehicle’s current location. The system controller also predicts an SOV/SOC for the battery upon arrival of the motor vehicle at a selected charging station, and estimates a preconditioning time to thermally precondition the battery to the target preconditioning temperature. The system controller then transmits one or more preconditioning signals to the thermal system to precondition the battery based at least upon the present SOV/SOC, target preconditioning temperature, and predicted battery preconditioning time.

公开(公告)号：US12233738B2

公开(公告)日：2025-02-25

申请号：US17515830

申请日：2021-11-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sumit Chopra ,  Matthew L. Ehrenfeld ,  Orlando Ward-Santos

IPC: H02J7/00 ,  B60L53/62 ,  B60L53/66 ,  B60L58/12 ,  H02J7/14

Abstract: Presented are closed-loop feedback control systems for preconditioning batteries, methods for making/using such systems, and electric-drive vehicles with battery preconditioning capabilities. A method for operating a battery system of a motor vehicle includes a system controller receiving a recharge signal to schedule a recharge event for a battery of the vehicle. The system controller responsively derives a target preconditioning temperature for optimizing the battery recharge event, and determines the battery state of voltage or charge for at the vehicle's current location. The system controller also predicts an SOV/SOC for the battery upon arrival of the motor vehicle at a selected charging station, and estimates a preconditioning time to thermally precondition the battery to the target preconditioning temperature. The system controller then transmits one or more preconditioning signals to the thermal system to precondition the battery based at least upon the present SOV/SOC, target preconditioning temperature, and predicted battery preconditioning time.