Method for controlling gear changes in a transmission of a motor vehicle drivetrain

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United States of America Patent

PATENT NO 12085164
APP PUB NO 20230296170A1
SERIAL NO

18041427

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A method is disclosed for controlling gearshifts in a transmission of a motor vehicle. Devising a shifting strategy of the gearshift takes into account the operation of a sustained-action braking device (10). To organize gearshifts in an optimum way having regard to the operation of the sustained-action braking device (10), at the beginning of the operation of the sustained-action braking device (10) it is examined with what starting criterion the operation of the sustained-action braking device (10) was initiated. Depending on the starting criterion identified, a current workload of the sustained-action braking device (10) is compared against an associated threshold value. Alternately, a gearshift is carried out directly to a lowest possible gear of the motor vehicle transmission (4). If the comparison of the current workload of the sustained-action braking device (10) exceeds the threshold value, then the shifting strategy is adapted.

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Patent Owner(s)

Patent OwnerAddress
ZF FRIEDRICHSHAFEN AGLÖWENTALER STR 20 FRIEDRICHSHAFEN 88046

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lang, Ulf Aidlingen, DE 11 52

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