Method and system for vehicle power train

A transmission system and vehicle quality technology, applied in the field of drivability and fuel economy systems, can solve problems such as reducing vehicle fuel economy, achieve the effects of reducing torque interference, improving drivability, and increasing service life

Active Publication Date: 2013-11-06
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, simply adjusting the driveline disconnect clutch state based on driver torque demand may cause the driveline to restrict vehicle launch by the electric motor alone, thus reducing vehicle fuel economy

Method used

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  • Method and system for vehicle power train
  • Method and system for vehicle power train
  • Method and system for vehicle power train

Examples

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Embodiment Construction

[0038] 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 (eg, 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.

[0039] The drive train can be Figure 4 method runs. In some examples, the drive train may be based on Figure 5-10 Dri...

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PUM

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Abstract

The invention discloses a system and a method for improving operation of a hybrid vehicle. In one embodiment, a disconnect-type clutch of a power train is adjusted to operate in response to the quality of wheels, so that the vehicle can run similarly when the quality of wheels is relatively low and relatively high.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application 61 / 643,156, 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 reducer. Background technique [0004] Hybrid vehicles may include a driveline disconnect clutch for engaging and disengaging the engine with a driveline that supplies torque to the wheels. A driveline disconnect clutch may be opened to allow the engine to stop when the driveline is rotated by the torque provided by the electric motor. Stopping the engine may allow the vehicle to conserve fuel. The driveline disconnect clutch may be engaged when the driver torque request exceeds a threshold...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/02B60W10/04B60W10/103B60W20/00B60K6/48B60W10/06B60W10/08B60W10/26B60W30/18
CPCY02T10/52Y02T10/62
Inventor J·A·多林A·O`C·吉布森G·M·皮尔特伦J·W·L·麦克卡莱姆藤井雄二
Owner FORD GLOBAL TECH LLC
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