Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control
Patent
1997-02-24
1999-04-13
Louis-Jacques, Jacques H.
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Transmission control
701 51, 701 55, 701202, 701208, G06G 778, G06F 1900
Patent
active
058938940
ABSTRACT:
An apparatus for controlling an automatic transmission of an automobile and a method therefor utilize a route guidance system. The apparatus includes a memory which stores road information, a detector for detecting a specific position which is located on a planned driving route from the road information stored in the memory; a position detector for detecting the present position of the automobile; a speed detector for detecting the speed V of the automobile; a sensor for detecting an opening degree .theta. of a throttle of the automobile; a computer for computing a distance "d" between the detected automobile position and the detected specific position; a driving operation detector for detecting an operation by the driver of the automobile; a first gear ratio selecting device for selecting a first gear ratio for the automatic transmission based on the detected speed V and the detected throttle opening degree .theta.; and a second gear ratio selecting device for selecting a second gear ratio based on the detected speed V, the distance "d", the detected operation by the driver and the first gear ratio selected by the first gear ratio selecting device. As a result, it is possible to carry out gear change control taking anticipated changes in the driving conditions into account, thus enabling smooth and comfortable driving. Further, since the driver of the automobile can have advance voice notice of control operations, it is possible to avoid confusion caused by sudden unexpected changes.
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patent: 5229941 (1993-07-01), Hattori
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patent: 5504482 (1996-04-01), Schreder
patent: 5539397 (1996-07-01), Asanuma et al.
patent: 5716301 (1998-02-01), Wild et al.
Iwami Takahiro
Moroto Shuzo
Nakashima Hideki
Yamasita Mitsugi
Kabushikikaisha Equos Research
Louis-Jacques Jacques H.
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