Electronically controlled fluid suspension system

Land vehicles – Body elevation or tilt – Establishing riding or trim height

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Details

100 41, 280DIG1, 280707, B60S 900, B62D 3700

Patent

active

048567981

ABSTRACT:
An electronically controlled fluid suspension system detects an average longitudinal or lateral acceleration within a predetermined period, computes an acceleration difference between a maximum average acceleration and a minimum average acceleration. Based on the acceleration difference, an estimated longitudinal or lateral acceleration is computed. In response to the estimated longitudinal or lateral acceleration, computed are a height-raising quantity of a lowered portion of a vehicle and a height-lowering quantity of a raised portion thereof. The supply and release of a fluid to and from fluid springs is rapidly controlled so that the height-raising quantity of the lowered portion of the vehicle is less than the height-lowering quantity of the raised portion thereof. The electronically controlled fluid suspension system, thus, prevents the vehicle from inclining due to changes in driving status, and enhances a road-adherence ability on an uneven road as well as a steering stability.

REFERENCES:
patent: 4620462 (1986-09-01), Kumagai et al.
patent: 4630840 (1986-12-01), Masuda et al.
patent: 4647069 (1987-03-01), Lijima
patent: 4695074 (1987-09-01), Kobayashi et al.
patent: 9597584 (1986-07-01), Hanser

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