Land vehicles – Body elevation or tilt – Establishing riding or trim height
Reexamination Certificate
2005-05-24
2010-06-08
Dickson, Paul N (Department: 3616)
Land vehicles
Body elevation or tilt
Establishing riding or trim height
C280S124157, C267S064280
Reexamination Certificate
active
07731203
ABSTRACT:
According to a method for controlling the air volume in a closed pneumatic spring system of a vehicle, an air-powered pump supplies at least two pneumatic springs and/or a compressed air reservoir with a specific air volume as needed such that the air pressure prevailing in the respective pneumatic spring and/or the compressed air reservoir is at a level which causes a vehicle body resting on the pneumatic spring to be positioned at a desired distance from the roadway or the vehicle axle. In order to obtain largely constant control velocities at different load conditions of the vehicle while using a smaller compressed air reservoir than in previously known systems, the pneumatic spring pressure (P) is measured in at least two of the pneumatic springs, the distance (HN, NN, TN) of the vehicle body to the roadway or the vehicle axle is determined, the axle load (AL) of at least one vehicle axle is determined from the pneumatic spring pressure (P) and the distance (HN, NN, TN) of the vehicle body to the roadway or the vehicle axle, a target system air volume (PV_SOLL) is determined in accordance with the respective axle load (AL), and the actual system air volume is adjusted to said target system air volume by actuating the air-powered pump or a relief valve.
REFERENCES:
patent: 4354693 (1982-10-01), Maeda et al.
patent: 4858895 (1989-08-01), Buma et al.
patent: 5794924 (1998-08-01), Stolpp
patent: 6173974 (2001-01-01), Raad et al.
patent: 6189903 (2001-02-01), Bloxham
patent: 6266590 (2001-07-01), Kutscher et al.
patent: 6523845 (2003-02-01), Stiller
patent: 6685174 (2004-02-01), Behmenburg et al.
patent: 6874772 (2005-04-01), Oldenettel
patent: 6935625 (2005-08-01), Bolt et al.
patent: 6959932 (2005-11-01), Svartz et al.
patent: 7192012 (2007-03-01), Bolt et al.
patent: 7255358 (2007-08-01), Kim
patent: 2002/0166321 (2002-11-01), Oldenettel
patent: 01 293211 (1989-11-01), None
Folchert Uwe
Ilias Heike
Brown Drew
Continental Aktiengesellschaft
Dickson Paul N
LandOfFree
Method for load-dependent air quality control in a pneumatic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for load-dependent air quality control in a pneumatic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for load-dependent air quality control in a pneumatic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4248169