PROTECTION OF AUTOMOTIVE POWER DRIVE IN COLD START Russian patent published in 2012 - IPC F16H59/78

Abstract RU 2446334 C2

FIELD: transport.

SUBSTANCE: at ambient temperature below preset minimum, maximum tolerable engine torque is limited or engine maximum tolerable rpm is limited. Preset torque or rpm sets limited operating range of power drive adapted to engine or transmission cold start sensitivity. Transmission control is adapted to one of limited preset magnitudes so that in gear shifting at temperature below preset limit may differ from normal gear shifting at torque and rpm at engine normal operating temperature.

EFFECT: improved power characteristics.

18 cl, 3 dwg

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RU 2 446 334 C2

Authors

Lindgren Anders

Jakobsson Ehrika

Templin Peter

Karlsson Svante

Dates

2012-03-27—Published

2007-04-23—Filed