Method and device for controlling a cruise control governor in a vehicle

US8938352B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8938352-B2
Application numberUS-201013643093-A
CountryUS
Kind codeB2
Filing dateMay 3, 2010
Priority dateMay 3, 2010
Publication dateJan 20, 2015
Grant dateJan 20, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

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A method for controlling a cruise control operable to maintain a set speed of a vehicle according to a plurality of goal droop curves is provided. The goal droop curves include: an isochronous droop curve; a top droop curve; and a bottom droop curve. The method includes performing command according to the droop curves; registering that the vehicle soon will enter an uphill slope; estimating in a vehicle position before entering the uphill slope if a downshift in a transmission of the vehicle will occur when traveling the uphill slope during a coming time period (testimation); if the downshift is estimated to occur then performing a fuel saving action during the time period in order to avoid the downshift. The fuel saving action is one of an adaptation of transmission downshifting limits or to during the time period performing command according to a second isochronous curve.

First claim

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The invention claimed is: 1. A method for controlling a cruise control governor operable to maintain a set speed of a vehicle by commanding fueling to an engine of the vehicle according to a plurality of goal droop curves, where the goal droop curves comprise: an isochronous droop curve which coincides with the set speed and is bounded by a first point below a full torque curve of the engine and by a second point above a zero torque curve of the engine; a top droop curve which i…

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What does patent US8938352B2 cover?
A method for controlling a cruise control operable to maintain a set speed of a vehicle according to a plurality of goal droop curves is provided. The goal droop curves include: an isochronous droop curve; a top droop curve; and a bottom droop curve. The method includes performing command according to the droop curves; registering that the vehicle soon will enter an uphill slope; estimating in …
Who is the assignee on this patent?
Bjernetun Johan, Eriksson Anders, Volvo Lastvagnar Ab
What technology area does this patent fall under?
Primary CPC classification B60W10/06. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Jan 20 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).