公开(公告)号：US20240317235A1

公开(公告)日：2024-09-26

申请号：US18187308

申请日：2023-03-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chunhao J. Lee ,  Dongxu LI ,  Farzad Samie ,  Paul Guillermo Otanez ,  Su-Yang Shieh

IPC: B60W30/19 ,  B60W10/08 ,  B60W10/115 ,  F16H61/04

CPC classification number: B60W30/19 ,  B60W10/08 ,  B60W10/115 ,  F16H61/0403 ,  B60W2510/10 ,  B60W2710/081 ,  B60W2710/1005 ,  F16H2061/0422

Abstract: A system for controlling a transmission state of a vehicle includes a controller connected to a first drive system and a first transmission including a gear system, a first clutch and a second clutch. The controller is configured to receive a request to change from an initial transmission state to a target transmission state when a propulsion torque is applied to the vehicle. The controller is configured to distribute the propulsion torque such that all of the propulsion torque is applied by a second drive system and the first drive system does not provide any propulsion torque to the vehicle, fully release an off-going clutch from the gear system, control a motor speed based on a rotational speed relation of the target transmission state to reduce a slip speed of the on-going clutch, and fully engage an on-coming clutch to put the first drive system in the target transmission state.

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：US20170159784A1

公开(公告)日：2017-06-08

申请号：US14962665

申请日：2015-12-08

Applicant: GM Global Technology Operations LLC

Inventor： Leonid BASIN ,  Shushan BAI ,  Dongxu LI ,  Farzad SAMIE ,  Ioan NAPAU ,  Gary H. PAELICKE ,  Clinton E. CAREY

IPC: F16H45/02 ,  F16H47/08 ,  F16H57/00 ,  F16H57/08 ,  F16F15/123 ,  F16H1/28

CPC classification number: F16H45/02 ,  F16D3/12 ,  F16D25/0635 ,  F16F15/1206 ,  F16F15/1232 ,  F16H2045/0268 ,  F16H2045/0294

Abstract: A torsional vibration damper includes a planetary gear set connected to a transmission input shaft, including a sun gear, a carrier, and a ring gear. A spring cage includes a first spring support member connected to the ring gear having multiple first spring contact members. A second spring support member is connected to the carrier and rotates with respect to the first spring support member. The second spring support member has multiple second spring contact members angularly oriented with respect to the first spring contact members. Multiple springs having opposed ends are positioned between and are compressed by rotation of the first or the second spring support member. The springs compress and extend to absorb vehicle engine vibration pulses. Each end of the springs has one of the multiple first spring contact members and or one of the multiple second spring contact members positioned proximate thereto.