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Hybrid vehicle

A hybrid electric, powertrain technology, applied in hybrid vehicles, motor vehicles, transmission control, etc., can solve problems such as reducing driver satisfaction

Active Publication Date: 2015-07-15
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Shifting gears in rapid succession may be undesirable and reduce driver satisfaction

Method used

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Examples

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Embodiment Construction

[0025] Embodiments of the present disclosure are described herein. It is to be understood, however, that the disclosed embodiments are examples only, and that other embodiments may take various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention. As will be understood by persons of ordinary skill in the art, various features shown and described with reference to any one figure may be combined with features shown in one or more other figures to produce Examples described. The combinations of features shown provide representative embodiments for typical applications. However, various combinations and modifications of the features consistent with the teachi...

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PUM

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Abstract

A vehicle is provided with a powertrain including a battery-powered electric motor, an internal combustion engine, a transmission, and a powertrain controller. The controller is programmed to permit an upshift of a transmission gear ratio while a powertrain torque demand is less than a forecasted available powertrain torque sustainable over a predetermined upcoming duration of time. The controller is also programmed to inhibit an upshift while the torque demand exceeds the forecasted available powertrain torque to reduce successive gear shifts. The controller may be further programmed to, in response to battery a state of charge being less than a threshold, reduce the forecasted available powertrain torque by an amount sufficient to provide a recharge to a battery. The controller may be further still programmed to reduce the forecasted available powertrain torque by an amount sufficient to restart the engine while the powertrain is operating in an engine-off traction mode.

Description

technical field [0001] The present disclosure relates to hybrid vehicles, and more particularly, to powertrain control systems. Background technique [0002] Automatic transmissions are a common automotive application as a driver convenience feature. In some transmissions, a single shift schedule map is used to determine when the transmission shifts from one gear to another. Shift schedules are predetermined and optimized for performance and fuel economy at a certain vehicle load with acceptable drivability. Shift points are generally a function of throttle position and vehicle speed, regardless of vehicle load. It is known to provide a traction switch that can invoke selectable shift schedules. Additionally, such traction plans are pre-programmed and thus not a function of actual vehicle load, nor can it be dynamically updated based on other changes in operating conditions. [0003] During automatic transmission operation, cycles occur in which the transmission automati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/10B60W20/00B60W40/00
CPCB60W10/10B60W20/30B60W10/06Y10S903/93B60W10/26B60W10/08B60W10/11B60W2510/244B60Y2200/92F16H61/0213F16H61/10F16H61/16Y02T10/62
Inventor 马克·斯蒂芬·耶马扎基戴征宇费列克斯·纳多瑞兹夫罗吉特·乔赫里伯纳德·D·内佛西梁伟王小勇
Owner FORD GLOBAL TECH LLC