公开(公告)号：US10208699B2

公开(公告)日：2019-02-19

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 ,  F02D41/38

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：US20180058868A1

公开(公告)日：2018-03-01

申请号：US15247243

申请日：2016-08-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

IPC: G01C21/34 ,  G01C21/36 ,  B60K6/50 ,  B60K6/22 ,  B60W20/12

CPC classification number: G01C21/3469 ,  B60K6/22 ,  B60K6/50 ,  B60W20/12 ,  B60Y2200/92 ,  B60Y2300/244 ,  G01C21/343 ,  G01C21/3492 ,  G01C21/3605 ,  G01C21/3626 ,  G01C21/3655 ,  G01C21/3667 ,  G01C21/3691 ,  Y10S903/904 ,  Y10S903/915

Abstract: A method for generating energy-optimized travel routes with a vehicle navigation system includes generating candidate travel routes between a route origin and one or more route destinations, and then dividing each candidate travel route into a plurality of route segments. The method includes estimating expected travel speeds along each segment using cloud information and calculating an expected energy efficiency over each of the candidate travel routes using one or more vehicle-specific energy efficiency models. The travel routes are displayed via the navigation system, including a trace of the energy-optimized travel routes and an expected or relative energy efficiency along the energy-optimized travel routes. A vehicle includes the navigation system and a powertrain. A powertrain controller may control vehicle speed over a selected route to maintain an optimally energy-efficient speed.

公开(公告)号：US09771883B1

公开(公告)日：2017-09-26

申请号：US15077249

申请日：2016-03-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ibrahim Haskara ,  Yiran Hu ,  Chen-Fang Chang

IPC: F02D37/02 ,  B60R16/023 ,  F02D13/02 ,  F02D41/26 ,  F02B37/18 ,  F01L1/34 ,  F02D41/04

CPC classification number: F02D37/02 ,  F01L1/344 ,  F01L2001/34496 ,  F01L2201/00 ,  F02B37/18 ,  F02D11/105 ,  F02D13/0219 ,  F02D41/0002 ,  F02D41/0007 ,  F02D41/1406 ,  F02D41/1444 ,  F02D41/26 ,  F02D2041/1412 ,  F02D2041/1433 ,  F02D2250/18 ,  Y02T10/18 ,  Y02T10/42

Abstract: An engine assembly includes a control module configured to receive a torque request and an engine configured to produce an output torque in response to the torque request. The control module includes a processor and tangible, non-transitory memory on which is recorded instructions for executing a method for supervisory model predictive control. The control module includes a multi-layered structure with an upper-level (“UL”) optimizer module configured to optimize at least one system-level objective and a lower-level (“LL”) tracking control module configured to maintain at least one tracking parameter. The multi-layered structure is characterized by a decoupled cost function such that the UL optimizer module minimizes an upper-level cost function (CFUL) and the LL tracking control module minimizes a lower-level cost function (CFLL). The system-level objective may include minimizing fuel consumption of the engine and the tracking parameter may include delivering the torque requested to engine.