公开(公告)号：US10604038B2

公开(公告)日：2020-03-31

申请号：US15987292

申请日：2018-05-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Shifang Li ,  Yiran Hu ,  Carl W. Wellborn ,  Joseph Neighbors

IPC: B60N2/01 ,  B60N2/30 ,  B60N2/16 ,  B60N2/28

Abstract: A seat for at least one occupant of a vehicle includes a seat cushion, a back, and a first side component. The seat cushion has a front end, a back end, and a longitudinal axis extending through the front and back ends. The seat cushion includes a rear portion and a front portion. The rear portion is disposed at the back end and includes a first top surface that is configured to engage the occupant. The front portion is disposed at the front end. At least one of the front and rear portions is configured to move along the longitudinal axis with respect to the other of the front and rear portions. The back is disposed at the back end of the seat cushion. The first side component is coupled to the back. The first side component is configured to move between a stowed configuration and a use configuration.

公开(公告)号：US20190359067A1

公开(公告)日：2019-11-28

申请号：US15987975

申请日：2018-05-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yiran Hu ,  Shifang Li ,  Lei Hao ,  Chandra S. Namuduri ,  Thomas W. Nehl

IPC: B60L11/18 ,  H02J7/00

Abstract: Methods of charging a vehicle battery pack are disclosed. Example methods may include determining a voltage imbalance between at least two parallel strings of a battery pack exceeds a threshold magnitude. Methods may further include electrically reducing the voltage imbalance between the at least two parallel strings using a series circuit including a first group of one or more of the battery cells of a first one of the parallel strings, and reconnecting the parallel strings in an electrical circuit in parallel to each other, in which configuration the strings of the battery pack may supply power to the vehicle.

公开(公告)号：US20190128233A1

公开(公告)日：2019-05-02

申请号：US15796019

申请日：2017-10-27

Applicant: GM Global Technology Operations LLC

Inventor： Junfeng Zhao ,  Jun-mo Kang ,  Yiran Hu

IPC: F02P5/15 ,  F02D37/02

Abstract: Disclosed are model-based combustion timing systems and control logic for engine assemblies, methods for making/operating such engine assemblies, and motor vehicles with spark-ignited engine assemblies implementing model-based combustion timing. A method for controlling torque output of an engine assembly includes receiving a requested torque demand for the engine, and determining a current fuel command and valve timing for the engine's power cylinder(s). A first math model is used to determine a desired CA50 based on the requested torque demand, a power cylinder indicated mean effective pressure (IMEP), an expander cylinder IMEP, and the current fuel command/valve timing. A second math model is used to determine a maximum brake torque (MBT) CA50 based on power cylinder and expander cylinder IMEPs, and current fuel command/valve timing. An engine control unit determines a final spark timing based on a correlation between the desired CA50 and MBT CA50, modified by a spark timing gain.

公开(公告)号：US20190010890A1

公开(公告)日：2019-01-10

申请号：US15641944

申请日：2017-07-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yiran Hu ,  Jun-mo Kang ,  Steven E. Muldoon ,  Chen-fang Chang

IPC: F02D41/40 ,  F02D41/14 ,  F02P5/04 ,  F02B75/18

Abstract: A direct-injection internal combustion engine is described and includes a pressure sensor that is disposed to monitor in-cylinder combustion pressure. A method, executed as a control routine in an attached controller, includes monitoring engine speed, engine load, temperature and combustion pressure. Combustion variation parameters are determined based upon the combustion pressure. A desired state for a combustion parameter can be determined based upon the engine speed, the engine load, and the temperature, and an adjustment to the desired state for the combustion parameter can be determined based upon the combustion variation parameters, wherein the adjustment to the desired state is selected to achieve acceptable states for the combustion variation parameters. Operation of the internal combustion engine is controlled based upon the desired state for the combustion parameter and the adjustment to the desired state for the combustion parameter.

公开(公告)号：US10082098B2

公开(公告)日：2018-09-25

申请号：US15299795

申请日：2016-10-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Scott E. Parrish ,  Yiran Hu

IPC: F02B3/00 ,  F02D41/40 ,  F02M51/06

CPC classification number: F02D41/402 ,  F02D41/401 ,  F02M51/061 ,  Y02T10/44

Abstract: A vehicle includes a combustion engine having at least one cylinder to burn a fuel, and a fuel injector to supply a fuel mass to the at least one cylinder. The vehicle also includes a controller programmed to cause the fuel injector supply a series of fuel pulses that sum to an aggregate target fuel mass. The controller is also programmed to adjust a commanded duration of a subsequent pulse of the series of pulses from a target pulse duration value based on at least one of a dwell time since a preceding pulse, a fuel mass of the preceding pulse, and an opening delay of the preceding pulse.

公开(公告)号：US20180195455A1

公开(公告)日：2018-07-12

申请号：US15404878

申请日：2017-01-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yiran Hu ,  Jun-mo Kang ,  Chen-fang Chang ,  Paul M. Najt

IPC: F02D41/24 ,  F02D41/26 ,  F02D41/14 ,  F02P5/04 ,  F02P5/15

CPC classification number: F02D41/2445 ,  F02D35/028 ,  F02D41/1454 ,  F02D41/2451 ,  F02D41/2467 ,  F02D41/2496 ,  F02D41/3035 ,  F02D41/401 ,  F02D2200/021 ,  F02D2200/0414 ,  F02D2200/101 ,  F02P5/153

Abstract: An engine assembly includes an engine with an engine block having at least one cylinder. A crankshaft is moveable to define a plurality of crank angles from a bore axis defined by the cylinder to a crank axis defined by the crankshaft. The plurality of angles includes a crank angle (CA50) corresponding to 50% of the fuel received by the cylinder being combusted. A controller is operatively connected to the engine and has a processor and a tangible, non-transitory memory on which is recorded instructions for executing a method for controlling the combustion phasing in the engine during a transient state. The controller is programmed to generate a learned table by storing at least one combustion phasing parameter in the tangible, non-transitory memory. Combustion phasing during a transient state is controlled based at least partially on the learned table.

公开(公告)号：US12122248B2

公开(公告)日：2024-10-22

申请号：US17201536

申请日：2021-03-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Aubrey W. Downs, Jr. ,  Christopher L Jones ,  James M. Faucett ,  Yiran Hu ,  Ruixing Long ,  Brent S. Gagas ,  Wei Wang

IPC: B60L15/36 ,  B60L15/20 ,  B60W50/02 ,  B60W50/029

CPC classification number: B60L15/36 ,  B60L15/2036 ,  B60W50/0205 ,  B60W50/029 ,  B60L2240/12 ,  B60L2240/22 ,  B60L2240/423 ,  B60W2050/0292

Abstract: Presented are control systems for operating dual-independent drive unit (DIDU) powertrains, methods for making/operating such systems, and electric-drive vehicles with fault management and mitigation for DIDU axles. A method of operating a motor vehicle with a DIDU axle includes monitoring first and second drive units (DU) that are independently operable to drive respective road wheels via respective axle shafts of the DIDU axle. A vehicle controller receives an indication of a fault condition in the first DU from a fault sensing module and responsively determines a fault type for the fault condition. The controller ascertains the vehicle's current speed and determines a respective torque limit for each of the DIDU drive units based on the fault type and current vehicle speed. Torque output of the first DU is concomitantly constrained to a first torque limit while torque output of the second DU is constrained to a second torque limit.

公开(公告)号：US20240001905A1

公开(公告)日：2024-01-04

申请号：US17854689

申请日：2022-06-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kee Y. Kim ,  Anthony H. Heap ,  Yiran Hu ,  Benjamin H. Daavettila

IPC: B60W10/30 ,  B60W10/08 ,  B60W10/06 ,  B60H1/02

CPC classification number: B60W10/30 ,  B60W10/08 ,  B60W10/06 ,  B60H1/02

Abstract: A method for heat coordination is provided. The method includes operating a propulsion system that generates heat as wasted power, operating a device utilizing the heat generated by the propulsion system, and operating a heat transfer system configured for transferring the heat generated by the propulsion system from the propulsion system to the device. The method further includes, within a computerized processor, determining a minimum useful waste thermal power to operate the device, monitoring a desired output torque for the propulsion system, and utilizing a cost-based determination to determine a propulsion system operating point based upon the desired output torque and the minimum useful waste thermal power to operate the device. The method further includes utilizing the propulsion system operating point to control the propulsion system.

公开(公告)号：US11745591B2

公开(公告)日：2023-09-05

申请号：US17329668

申请日：2021-05-25

Applicant: GM Global Technology Operations LLC

Inventor： Daniel Marius Bangala ,  Yiran Hu ,  Sirui Song ,  Matthew James Meakin Brymer

IPC: B60L3/00 ,  B60L15/20

CPC classification number: B60L3/0038 ,  B60L15/20 ,  B60L2240/16 ,  B60L2240/18 ,  B60L2240/24 ,  B60L2240/423 ,  B60L2250/26 ,  B60L2260/28

Abstract: A propulsion torque distribution system for a vehicle includes a controller in electronic communication with a plurality of vehicle systems. The controller executes instructions to receive at least one or more computational faults, one or more sensor faults, and a driver torque request. In response to receiving at least one of the one or more computational faults and the one or more sensor faults, the controller determines a fault that affects calculation of a primary torque request has occurred. In response to determining the fault that affects calculation of the primary torque request has occurred, the controller determines a severity of the fault. The controller determines a remedial state based on the severity of the fault. The remedial state indicates a corresponding action that is executed by the propulsion torque distribution system.

公开(公告)号：US11661898B1

公开(公告)日：2023-05-30

申请号：US17811653

申请日：2022-07-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yiran Hu ,  Kee Y Kim ,  Jacob Kyle Lobbestael

IPC: F02D41/00 ,  F02D41/14 ,  F02M25/08

CPC classification number: F02D41/004 ,  F02D41/0035 ,  F02D41/1406 ,  F02M25/0827 ,  F02D2200/0406 ,  F02D2200/1002 ,  F02D2200/703

Abstract: Evaporative emission purge control systems and methods use a cost factor to incentivize operation of an internal combustion at torques favorable for purge. An evaporative emission control system is configured to collect fuel vapor. A controller determines whether an operating speed of the internal combustion engine is within a target purge region that is bounded by a lower speed threshold and an upper speed threshold of the internal combustion engine. When the operating speed of the internal combustion engine is within the target purge region, the controller applies a cost factor to operating points for the internal combustion engine, and based on the cost factor, the operating points are set to include an operating torque for the internal combustion engine to generate an intake pressure of the internal combustion engine at a level below atmospheric pressure for a purge of the evaporative emission control system.