Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control
Reexamination Certificate
2000-03-23
2001-11-06
Cuchlinski, Jr., William A. (Department: 3661)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Transmission control
C701S022000, C701S113000, C123S685000
Reexamination Certificate
active
06314356
ABSTRACT:
In the driving system of an internal combustion engine/automatic transmission, the internal combustion engine and the automatic transmission are each controlled by an electronic control unit. During the initial phase, i.e. when the driver intends to start the vehicle, the electronic engine control unit makes available via a data line to the electronic gear control the temperature of the internal combustion engine. With the aid of information, the electronic gear control tests whether a cold start condition exists. When a cold start condition exists, the electronic gear control selects a so-called warm-up program or allows only those shift programs having elevated shift points. The effect of the elevated shift points is that the internal combustion engine and the catalyst warm up more quickly and reach the operating temperature sooner.
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Japanese Patent Abstract, vol. 006, No. 106 (M-213) dated May 10, 1983 & JP 58 028049A (Toyota Jidosha Kogyo KK) dated Feb. 18, 1983.
Eschrich Gerhard
Schmid Wolfgang
Arthur Gertrude
Cuchlinski Jr. William A.
Davis & Bujold P.L.L.C.
ZF Friedrichshafen AG
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