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Method for regulating operation of a hybrid vehicle driveline

A hybrid vehicle and power train technology, applied in the field of drivability and fuel economy systems, can solve problems such as vibration and dual-mass flywheel deflection, reduce wear, improve drivability, and reduce drive train torque interference Effect

Active Publication Date: 2017-07-18
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under some conditions the dual mass flywheel may flex and oscillate, and the oscillations may be noticeable and objectionable to the driver
In some examples, dual mass flywheel oscillations may be caused by closing the driveline disconnect clutch

Method used

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  • Method for regulating operation of a hybrid vehicle driveline
  • Method for regulating operation of a hybrid vehicle driveline
  • Method for regulating operation of a hybrid vehicle driveline

Examples

Experimental program
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Embodiment Construction

[0040] The present invention relates to controlling the drive train of a hybrid vehicle. Such as Figure 1-3 As shown, the hybrid vehicle may include an engine and an electric motor. The engine may or may not be run with a driveline integrated starter / generator (such as an electric motor or motor, which may be referred to simply as DISG) during vehicle operation. The driveline integrated starter / generator is engaged into the driveline on the same axis as the engine crankshaft and turns whenever the torque converter impeller rotates. Also, DISG may not selectively engage or disengage the driveline. Rather, the DISG is an integral part of the drive train. Also, the DISG can be operated with or without the engine running. The mass and inertia of the DISG belongs to the driveline to provide or absorb torque from the driveline when the DISG is not operating.

[0041] The drive train can be Figure 4 method runs. In some examples, the drive train may be based on Figure 5-10...

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Abstract

The method involves adjusting an actuator in response to a speed and torque difference in a dual mass flywheel (DMF), which is positioned in hybrid-vehicle drive train between an engine and a drive line clutch. The dual mass flywheel is a drive train component that is positioned between engine and drive train clutch. The actuator is torque converter clutch, drive train in integrated starter / generator, and clutch drive train. An independent claim is included for hybrid vehicle system.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application 61 / 643,151 filed May 4, 2012, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to systems and methods for improving the drivability and fuel economy of vehicles. This approach may be particularly useful for engines that are selectively connected to an electric motor and a transmission. Background technique [0004] Hybrid vehicles potentially offer improvements in fuel efficiency and vehicle driving range compared to non-hybrid vehicles. An example of a hybrid vehicle includes an engine that can be selectively connected to an electric motor and transmission depending on vehicle operating conditions. The engine is selectively connectable to an electric motor and a transmission via an electrically or hydraulically actuated driveline disconnect clutch. The drive...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/18B60W10/08B60W10/02B60W10/06B60W10/10
CPCB60K6/48B60W10/02B60W10/023B60W10/08B60W10/113B60W20/00B60W2030/206Y02T10/62
Inventor G·M·皮尔特伦J·W·L·麦克卡莱姆A·O`C·吉普森S-H·李D·奥欣斯盖
Owner FORD GLOBAL TECH LLC
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