Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Indication or control of braking – acceleration – or deceleration
Patent
1993-08-27
1999-07-20
Teska, Kevin J.
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Indication or control of braking, acceleration, or deceleration
701 1, 701 76, B60K 4122, H04B 1506
Patent
active
059250879
ABSTRACT:
A method and apparatus to estimate slopes accurately, as well as to eliminate slope estimation errors, taking error generating conditions into account. The slope on which the vehicle is running is estimated from the vehicle speed and the engine rpm value. The result is entered to the slope estimation unit through a low pass filter, then to the navigation unit. A noise eliminator is provided to the output of the slope estimation unit so that noises can be eliminated, for example, during gear-shifting or for a certain time after the gear shifting is completed by obtaining the "gear shifting" information from the automatic transmission control. The preceding estimated slope value is held during the noise elimination period.
REFERENCES:
patent: 3906472 (1975-09-01), Guadara et al.
patent: 4056782 (1977-11-01), Makino et al.
patent: 4137501 (1979-01-01), Kuroyanagi et al.
patent: 4169255 (1979-09-01), Hulsman et al.
patent: 4172505 (1979-10-01), Rabus et al.
patent: 4285252 (1981-08-01), Yamaki et al.
patent: 4380048 (1983-04-01), Kishi et al.
patent: 4384331 (1983-05-01), Fukuhara et al.
patent: 4490790 (1984-12-01), Shinoda
patent: 4494210 (1985-01-01), Miller
patent: 4500977 (1985-02-01), Gelhand
patent: 4625590 (1986-12-01), Muller
patent: 4639885 (1987-01-01), Spock et al.
patent: 4679145 (1987-07-01), Beeck et al.
patent: 4789936 (1988-12-01), Kurihara et al.
patent: 4967316 (1990-10-01), Goebel et al.
patent: 5033002 (1991-07-01), Sol
patent: 5119321 (1992-06-01), Burton et al.
patent: 5231582 (1993-07-01), Takahashi et al.
patent: 5231897 (1993-08-01), Morita
patent: 5267158 (1993-11-01), Sakaguchi et al.
patent: 5300820 (1994-04-01), Sayama et al.
patent: 5333944 (1994-08-01), Shirai et al.
patent: 5361207 (1994-11-01), Hayafune
patent: 5455779 (1995-10-01), Sato et al.
Horiuchi Michimasa
Ishii Junichi
Katayama Hiroshi
Kayano Mitsuo
Minowa Toshimichi
Frejd Russell W.
Hitachi , Ltd.
Teska Kevin J.
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