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Transmission Load Prediction System for Stop-Start Systems and Hybrid Electric Vehicles

A transmission and engine system technology, applied in the direction of engine starting, engine motor starting, engine components, etc., can solve problems such as power system vibration

Inactive Publication Date: 2011-12-07
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this improves the response time of the stop-start vehicle system and the HEV's vehicle launch, it can cause powertrain vibration during start-up due to the increased speed of the ICE and the increased load on the ICE from the transmission

Method used

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  • Transmission Load Prediction System for Stop-Start Systems and Hybrid Electric Vehicles
  • Transmission Load Prediction System for Stop-Start Systems and Hybrid Electric Vehicles
  • Transmission Load Prediction System for Stop-Start Systems and Hybrid Electric Vehicles

Examples

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Embodiment Construction

[0064] The following description is merely exemplary in nature and is in no way intended to limit the invention, its application or uses. For purposes of clarity, the same reference numbers will be used in the drawings to refer to similar elements. As used herein, the phrase "at least one of A, B, and C" should be construed as a logical (A or B or C) represented by a non-exclusive logical or. It should be understood that steps within a method may be executed in different order without altering the principles of the present invention.

[0065] As used herein, the term "module" may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC), an electronic circuit, a process that executes one or more software or firmware programs (shared, dedicated, or grouped) and / or memory (shared, dedicated, or grouped), combinational logic, and / or other suitable elements that provide the described functionality.

[0066] exist figure 1 An exemplary engine system 10 a...

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PUM

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Abstract

An engine system of a vehicle includes an engine torque module. The engine torque module determines an engine output torque profile including predicted torque outputs based on an accelerator signal and an engine state variable. A load control module determines a dynamic transmission load profile based on the engine output torque profile and an engine speed profile. The dynamic transmission load profile includes transmission loads as a function of engine speed during an auto-start of an engine. A compensation module generates a torque compensation signal based on the dynamic transmission load profile. An actuator module compensates for a change in a transmission load based on the torque compensation signal and during a transition of the engine from a cranking state to an idle state.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Patent Application No. 61 / 350,097, filed June 1, 2010. The entire disclosure of the above patent application is hereby incorporated by reference. [0003] This application relates to U.S. Patent Application No. [Attorney Docket No. P011233] filed on the same date, [Attorney Docket No. P011236] filed on the same date, [Attorney Docket No. P011235] filed on the same date, [Attorney Docket No. P011884] filed on the same date , [Attorney Docket No. P011237] filed on the same day, and [Attorney Docket No. P011238] filed on the same day. The entire disclosure of the above patent application is hereby incorporated by reference. technical field [0004] The present invention relates to hybrid electric vehicles and stop-start engine control systems. Background technique [0005] The background description provided herein is for the purpose of generally presenting the cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/06B60W10/10B60W40/10
CPCF02D11/105F02D29/02F02N2300/102F02N11/0818Y02T10/48F02N11/084F02D13/0219F02N2200/0802F02N11/0822F02N2300/104Y02T10/40
Inventor Q.马R.D.沙夫托R.F.小罗乔基
Owner GM GLOBAL TECH OPERATIONS LLC