Invention Grant
- Patent Title: Predictive tachometer profile generation during transmission shift events
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Application No.: US15220912Application Date: 2016-07-27
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Publication No.: US10229232B2Publication Date: 2019-03-12
- Inventor: Richard I. Chang , Matthew D. Whitton
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Agency: Lorenz & Kopf, LLP
- Main IPC: B60K37/00
- IPC: B60K37/00 ; F16H63/42 ; F16H61/22 ; G06F17/50 ; F16H63/40 ; F02D41/02 ; G06Q10/04 ; F02D41/14

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.
Public/Granted literature
- US20180032650A1 PREDICTIVE TACHOMETER PROFILE GENERATION DURING TRANSMISSION SHIFT EVENTS Public/Granted day:2018-02-01
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