Vehicle wheel suspension having a suspension spring and having an additional spring element connectable in series with said suspension spring
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsRoland Koenig, Alfred Pruckner
Life of this patent
Estimating the term…
Abstract
A vehicle wheel suspension includes a suspension spring and an additional spring element. The additional spring element is disposed in a working chamber of a hydraulic cylinder. The working chamber, in hydraulic terms, is configured to be completely shut off by a check valve and the volume thereof with an opened check valve while activating a vehicle drive apparatus with braked vehicle wheels being variable by the anti-dive angle and/or the anti-squat angle. For such a volumetric variation of the working chamber, a hydraulic medium is flowable through the opened check valve.
Claims4
A vehicle wheel suspension comprising:
- a suspension spring;
- an additional spring element, which is configured to vary spring stiffness of the wheel suspension and height setting of a vehicle superstructure above a carriageway by being connectable in series with the suspension spring, the additional spring element not being configured as a fluid spring but in a material with low internal friction, wherein
- the additional spring element is disposed in a working chamber of a hydraulic cylinder, the working chamber, in hydraulic terms, being configured to be completely shut off by a check valve and the volume thereof by opening the check valve while activating a vehicle drive apparatus with braked vehicle wheels being variable by an anti-dive angle and/or an anti-squat angle, and
- for such a volumetric variation of the working chamber, a hydraulic medium is flowable through the opened check valve.
Dependencies are inferred from the claim text.