公开(公告)号：US20230304810A1

公开(公告)日：2023-09-28

申请号：US17700996

申请日：2022-03-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yongjie ZHU ,  Dongxu Li ,  Yue-Yun Wang ,  Chen-Fang Chang ,  Chunhao J. Lee ,  Brandon D. Mazzara

IPC: G01C21/34 ,  G08G1/052

CPC classification number: G01C21/3469 ,  G08G1/052

Abstract: A trip energy estimation system for a vehicle includes a traffic speed module configured to determine an average traffic speed along a projected route, a path information module configured to output path information indicating route features along the projected route, a perceived speed module configured to output a perceived vehicle speed along the projected route based on the average traffic speed and the path information, and a dynamic driving module configured to calculate and output a predicted driver speed based on the perceived vehicle speed and a feedback input indicative of the predicted driver speed. The dynamic driving module is configured to execute a machine learning algorithm to calculate the predicted driver speed.

公开(公告)号：US20230268745A1

公开(公告)日：2023-08-24

申请号：US17678143

申请日：2022-02-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Lei HAO ,  Yue-Yun WANG ,  Yongjie ZHU

IPC: H02J7/00 ,  H02J7/14 ,  H02M3/158 ,  H02P27/08 ,  H02M7/5387 ,  G01R31/3835

CPC classification number: H02J7/0019 ,  H02J7/0048 ,  H02J7/007182 ,  H02J7/0063 ,  H02J7/1423 ,  H02J7/0024 ,  H02M3/158 ,  H02P27/08 ,  H02M7/53871 ,  G01R31/3835 ,  H02J2207/20

Abstract: A charging system includes: a charge port that receives shore power; a DC-to-DC converter or a motor inverter circuit; switches that connect the charge port and the DC-to-DC converter or the motor inverter circuit to battery packs; and a control module. The control module: determines open circuit voltages or states of charges of the battery packs; based on the open circuit voltages or the states of charges of the battery packs, determines whether to connect at least one of the battery packs to the charge port, the DC-to-DC converter, and the motor inverter circuit; and based on the determination of whether to connect at least one of the battery packs, control states of the switches to charge the at least one of the battery packs by selectively connecting the at least one of the battery packs to (a) the charge port, or (b) the DC-to-DC converter or motor inverter circuit.