About 36 results
https://drivepatents.com/patents/1014374 · 30 Mar 2011
The method involves assigning pneumatic spring damping units (FL, FR, RL, RR) to each of vehicle wheels. An air pressure in a pneumatic spring system (1) is determined, and an air mass in the pneumatic spring system is subsequently computed using an output...
https://drivepatents.com/patents/1066466 · 14 Jun 2006
The method involves processing and/or overwriting parameters/parameter fields and/or parts of the algorithms of a process controller with the aid of a separate external data processing device (1) not belonging to the control device (2) and transferring the...
https://drivepatents.com/patents/1067926 · 26 Apr 2006
The method involves actuating a valve (3) into an open state, and connecting an air suspension unit (1) having a pressure level with an air reservoir having another level via the valve. An estimate is determined for a future point in time from values that ...
https://drivepatents.com/patents/1069003 · 22 Mar 2006
The suspension has a control electronic circuit (4) that verifies whether two smoothed signals lie within a pre-set signal band, by an upper limit valve, which is above a preset valve and by a lower limit valve, which is below a threshold valve. The circui...
https://drivepatents.com/patents/1071750 · 14 Dec 2005
The unit has a rear axle with an assigned valve block (2), containing a central valve (4) for and ventilating pneumatic spring bellows (6) of the rear axle. A front axle has an assigned valve block (8) for and ventilating pneumatic spring bellows (10) of t...
https://drivepatents.com/patents/1074312 · 7 Sep 2005
A vehicle axle load display unit has a calibration area (Awo) corrected by a tabular function (k) representing the dependence of air spring bellows working area (Aw) on actual height (h) with normal (ho) or minimum (hmin) level as calibration and precomput...
https://drivepatents.com/patents/1080037 · 9 Feb 2005
A leveling unit has a compressed-air feeder (CAF) (1), a valve device (VD) (5), a compressed-air reservoir (CAR) (3) and compressed-air pipes (7,8) to link the CAF to the VD. An atmospheric connection (2) links to the VD. One compressed-air pipe (10) links...
https://drivepatents.com/patents/1085112 · 4 Aug 2004
The method involves automatically controlling the effective transport performance of the compressed air transport device (1) depending on the type of filling of air bellows (64-66) selected by a valve arrangement (60-63). Adaptation of the effective transp...
https://drivepatents.com/patents/1089720 · 11 Feb 2004
The double-action pneumatic cylinder (1), located between wheel and bodywork, includes a piston (4) and piston rod (5), dividing the cylinder volume into two pressure chambers (8, 9). These are connected via an air passage opening (2, 3) with an equalizati...
https://drivepatents.com/patents/1090613 · 2 Jan 2004
Arrangement for controlling the operation of the pneumatic-suspension of a commercial vehicle with a steering front axle, a drive axle and at least one further axle comprises the following: a front axle load sensor (30); a control unit (32) that compares l...