公开(公告)号：US20230204369A1

公开(公告)日：2023-06-29

申请号：US17562171

申请日：2021-12-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yue-Yun WANG ,  Dongxu LI ,  Brandon D. MAZZARA ,  Jonathan WILSON ,  Chen-Fang CHANG ,  Chunhao J. LEE

IPC: G01C21/34 ,  B60W40/00

CPC classification number: G01C21/3469 ,  B60W40/00

Abstract: A trip energy estimation system includes a memory and a control module. The memory stores average traffic speed, average traffic acceleration, driver speed, and driver acceleration data. The control module executes an algorithm to estimate an amount of energy for an electric vehicle to travel between two locations. The algorithm includes: determining, based on the average traffic speed data and the average traffic acceleration data, a baseline amount of energy for the electric vehicle to travel between the two locations; determining, based on the driver speed data and the driver acceleration data, a dynamic amount of energy corresponding to at least one of stop and go events, over speeding, or under speeding; and determining a total amount of energy based on the baseline amount of energy and the dynamic amount of energy. The control module, based on the total amount of energy, performs an operation including indicating a trip estimate.

公开(公告)号：US20200124152A1

公开(公告)日：2020-04-23

申请号：US16165346

申请日：2018-10-19

Applicant: GM Global Technology Operations LLC

Inventor： Chunhao J. LEE ,  Farzad Samie ,  Derek F. Lahr ,  Norman K. Bucknor ,  Dongxu Li

IPC: F16H45/02 ,  F16H41/24 ,  F16D41/12 ,  F16D41/04 ,  F16F15/123

Abstract: A powertrain system includes a flex plate, a transmission input shaft, a torque coupling, a one-way clutch, and a damper assembly. The flex plate is configured to be connected to a crankshaft of an engine. The torque coupling connects the transmission input shaft to the flex plate while allowing slip between the transmission input shaft and the flex plate. The one-way clutch is configured to couple the flex plate to the torque coupling. The damper assembly couples the flex plate to the one-way clutch and is configured to inhibit vibration transmission from the flex plate to the one-way clutch.

公开(公告)号：US20230299695A1

公开(公告)日：2023-09-21

申请号：US17699261

申请日：2022-03-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Muhammad Hussain ALVI ,  Chandra S. NAMUDURI ,  Suresh GOPALAKRISHNAN ,  Chunhao J. LEE ,  Lei HAO ,  Yue-Yun WANG ,  Rashmi PRASAD

IPC: H02P5/74 ,  H02J7/00 ,  H02P23/14

CPC classification number: H02P5/74 ,  H02J7/0063 ,  H02J7/0013 ,  H02P23/14

Abstract: A power control system comprises a battery system including N battery packs. A plurality of contactors selectively connects N battery packs of a battery system in a first configuration supplying a first voltage level, a second configuration supplying a second voltage level, and a disconnected configuration. M power inverters connect the battery system to M electric machines, respectively. A controller is configured to determine when to transition between the first configuration and the second configuration. The controller is configured to transition between the first configuration and the second configuration by causing one of a positive torque transient and a negative torque transient to be generated by at least one of the M electric machines, transitioning the battery system from one of the first configuration and the second configuration to the disconnected configuration, and transitioning from the disconnected configuration to the other one of the first configuration and the second configuration.