公开(公告)号：US20210172369A1

公开(公告)日：2021-06-10

申请号：US16707290

申请日：2019-12-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Insu Chang ,  Min Sun ,  David E. Edwards

IPC: F01P7/16 ,  F01P5/10

Abstract: An internal combustion engine includes an engine block, a combustion cylinder including a cylinder wall, engine oil and engine coolant. Control of the internal combustion engine includes estimating the cylinder wall temperature in a temperature state estimator, comparing the estimated cylinder wall temperature to a predetermined temperature threshold, and circulating the engine coolant in the engine when the estimated cylinder wall temperature exceeds the predetermined temperature threshold.

公开(公告)号：US20210061063A1

公开(公告)日：2021-03-04

申请号：US16551064

申请日：2019-08-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Min Sun ,  Yiran Hu ,  David E. Edwards ,  Jun Chen ,  Insu Chang ,  Steven P. Moorman

IPC: B60H1/00

Abstract: Systems and methods are provided for management of a thermal system. A system for thermal management includes a thermal system with fluid conduits. A sensor is disposed to monitor an input parameter state of the thermal system. An actuator is configured to vary a flow in the fluid conduits. A controller is configured to receive a signal representative of the input parameter state; process an actuator state through a flow model of the thermal system to obtain an existing flow in the fluid conduits; process the existing flow through a thermal model of the thermal system to determine an input that reduces an error between a desired parameter state and the input parameter state; process the input through an inverse flow model to convert the input to a desired actuator state; and position the actuator in the desired actuator state.