Vehicle suspension apparatus

Details Vehicle suspension apparatus Vehicle suspension apparatus

1985-05-17

1987-06-16

Love, John J.

Land vehicles

Wheeled

Running gear

B60G 2106

Patent

active

046731938

ABSTRACT:
In a vehicle suspension apparatus, front and rear wheel suspension units respectively have air spring chambers. Air is supplied to predetermined air spring chambers from an air source through a supply control valve, and at the same time air is exhausted from remaining air spring chambers through an exhaust control valve. Three-directional valves are inserted between the respective air spring chambers and the exhaust control valve. One end of a front wheel communication path is connected to the front left wheel three-directional valve and the other end of the path is connected to the front right wheel three-directional valve. Similarly, one end of a rear wheel communication path is connected to the rear left wheel three-directional valve and the other end of the path is connected to the rear right wheel three-directional valve. The air passing through the supply control valve is supplied to the front wheel air spring chambers through the front wheel communication path or to the rear wheel air spring chambers through the rear wheel communication path. Each of the three-directional valves can take the first position where the air spring chambers communicate with the supply control valve or the second position where the air spring chambers communicate with the exhaust control valve, thereby decreasing the numbers of valves and paths so as to perform position control.

REFERENCES:
patent: 2921160 (1960-01-01), Lautzenhiser
patent: 2988279 (1961-06-01), Irwin
patent: 3081942 (1963-03-01), Maclay
patent: 3130688 (1964-04-01), Gutridge
patent: 3156481 (1964-11-01), Dangauthier
patent: 3608925 (1971-09-01), Murphy
patent: 3643970 (1972-02-01), Gauchet
patent: 4386791 (1983-06-01), Watanabe
patent: 4396202 (1983-08-01), Kami
patent: 4462610 (1984-06-01), Saito
Totani, Shinzo, International Congress on Transportation Electronics Proceedings, Oct. 22-24, 1984, 111-37.

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