公开(公告)号：US20180045129A1

公开(公告)日：2018-02-15

申请号：US15234723

申请日：2016-08-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： RICHARD I. CHANG ,  MATTHEW D. WHITTON

IPC: F02D41/00 ,  G01P3/46 ,  F02D41/22 ,  F02D41/26 ,  G07C5/06 ,  G07C5/08

CPC classification number: F02D41/0097 ,  B60K35/00 ,  F02D41/222 ,  F02D41/26 ,  F02D2041/1412 ,  G01P1/07 ,  G01P3/465 ,  G07C5/06 ,  G07C5/0816

Abstract: Methods and systems are provided for generating a predictive tachometer profile at a tachometer of a vehicle. An engine speed offset can be generated based on an engine acceleration and an accelerator pedal position rate. A predictive tachometer profile displayed at the tachometer can then be generated based on the engine speed offset and an actual engine speed.

公开(公告)号：US20180032650A1

公开(公告)日：2018-02-01

申请号：US15220912

申请日：2016-07-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： RICHARD I. CHANG ,  MATTHEW D. WHITTON

IPC: G06F17/50 ,  F16H63/40

CPC classification number: G06F17/5009 ,  F02D41/0225 ,  F02D41/023 ,  F02D2041/1412 ,  F02D2041/1431 ,  F02D2200/0602 ,  F02D2200/1004 ,  F02D2200/501 ,  F16H63/40 ,  G06Q10/04

Abstract: Methods and systems are provided for generating a predictive tachometer profile at a tachometer of a vehicle. When an inertia phase of a transmission shift event is determined to be in progress, the predictive tachometer profile can be computed based on: a computed shift completion percentage; a difference between the current attained gear speed and the commanded gear speed; and a commanded engine torque that is determined based on the accelerator pedal position and the vehicle speed. The predictive tachometer profile can then be displayed at the tachometer. The predictive tachometer profile accounts for delays in a signal path between an engine speed sensor and the tachometer.