Method for operating a vehicle having a driveline disconnect clutch

A technology for releasing a clutch and an operating method, which is applied in the field of operating a vehicle with a driveline disconnecting clutch, can solve problems such as driveline torque disturbance, and achieve the effect of reducing driveline torque disturbance

Pending Publication Date: 2021-08-13
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Failure to accurately estimate the amount of torque being transferred through the driveline disconnect clutch can result in driveline torque disturbances

Method used

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  • Method for operating a vehicle having a driveline disconnect clutch
  • Method for operating a vehicle having a driveline disconnect clutch
  • Method for operating a vehicle having a driveline disconnect clutch

Examples

Experimental program
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Embodiment Construction

[0013] This specification deals with estimating the amount of torque being transferred through the driveline disconnect clutch. When the driveline disconnect clutch is closed to couple the engine to the electric machine, the amount of torque transferred through the driveline disconnect clutch may be the basis for adjusting the torque of the electric machine during engine cranking. The drive train can include figure 1 The type of internal combustion engine shown. Engines can be included in such figure 2 in the drive train or driveline shown in . The drive train can be based on Figure 3A and Figure 3B method to model. The amount of torque transmitted through the driveline disconnect clutch can be determined according to Figure 4 estimated using the method shown in . In addition, the drive train can be based on Figure 4 The method shown in to operate.

[0014] refer to figure 1 , an internal combustion engine 10 (comprising a plurality of cylinders, figure 1 One o...

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PUM

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Abstract

The present disclosure provides a method for operating a vehicle having a driveline disconnect clutch. A method for operating a vehicle that includes a driveline disconnect clutch is described. In one example, the method adjusts torque of an electric machine in response to a estimated torque capacity of the driveline disconnect clutch. The estimated torque capacity of the driveline disconnect clutch is based on a combined inertia of a dual mass flywheel and the driveline disconnect clutch.

Description

technical field [0001] The present description relates to methods and systems for operating a vehicle including a driveline disconnect clutch. The method and system may improve driveline operation via improved estimation of driveline disconnect clutch torque. Background technique [0002] A vehicle may include a driveline disconnect clutch to isolate a first portion of the driveline from a second portion of the driveline. Specifically, a driveline disconnect clutch may be positioned in the driveline between the dual mass flywheel and the integrated starter / generator. The dual mass flywheel may be coupled to the engine and the driveline disconnect clutch. The driveline disconnect clutch can be opened when driver demand torque is low, allowing the engine to be stopped to save fuel. The integrated starter / generator may be the only source of propulsion to provide propulsion to the wheels of the vehicle when the driveline disconnect clutch is open. During conditions when the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/02
CPCB60W10/024F02N11/04F02N5/04F02N2300/104F02N2200/022F02N2200/042B60W2510/081B60W2710/083B60W2040/1369B60W2510/0275B60K6/387B60K2006/4825B60K2006/268B60W2030/206B60W20/40B60W2540/10B60W2710/023B60W10/02B60W10/06B60W10/08Y02T10/62B60W30/188B60W20/15B60W40/13B60W2510/0266
Inventor 法扎尔·阿拉曼·赛义德拉吉特·约里沙伊莱什·施里坎特·科扎里卡托马斯·斯科特·吉邝明朗凯文·雷·鲁伊巴尔
Owner FORD GLOBAL TECH LLC
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