| 摘要 |
<p>The invention concerns a vehicle hydrostatic transmission circuit having at least two displacement members (12) driven by at least a hydraulic motor (10) including main supply and exhaust conduits (16, 18). Means for controlling skidding of at least one displacement member comprise a skid-control valve (20) and an additional valve (22) arranged in parallel on one main conduit (16). At least the skid control valve (20) has a choke with variable cross-section, while the additional valve has two extreme positions (22A, 22B), wherein its passage cross-sections are respectively maximum and minimum. Control means (UC, 26, 28) enable to control the displacements of said valves on the basis of a skidding condition detected by detection means (24).</p> |
