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1. 发明申请

WO2019002258A1 A METHOD AND A SYSTEM FOR DETERMINING A LOAD IN A WORKING MACHINE 审中-公开
公开(公告)号：WO2019002258A1
公开(公告)日：2019-01-03
申请号：PCT/EP2018/067054
申请日：2018-06-26
申请人： VOLVO CONSTRUCTION EQUIPMENT AB
发明人： KUMAR, Manoranjan , SKOGH, Lennart , EKEVID, Torbjörn
IPC分类号： E02F9/00 , E02F9/26 , F16C19/52
摘要： The invention relates to a method for determining a load in a working machine (101) comprising a linkage (106) configured to be connected to an implement (107). The method comprises: determining (S1) at least one pressure in a first hydraulic cylinder (108) and at least one pressure in a second hydraulic cylinder (110) arranged to control the linkage and determining (S2) at least one link angle between at least two links in the linkage. The method further comprises, for a known linkage configuration and for a selected linkage bearing, for each of the first and second hydraulic cylinder, determining (S3) at least two perpendicular force components acting on the selected linkage bearing, based on the determined at least one pressure in each of the first and second cylinders and the at least one link angle; and determining (S4) a load on the selected linkage bearing as a linear combination of the determined at least two perpendicular force components using predetermined constants for the linear combination.

2. 发明申请

WO2021170231A1 AN ARTICULATED WORKING MACHINE VEHICLE 审中-公开
公开(公告)号：WO2021170231A1
公开(公告)日：2021-09-02
申请号：PCT/EP2020/055031
申请日：2020-02-26
申请人： VOLVO CONSTRUCTION EQUIPMENT AB
发明人： EKEVID, Torbjörn , JOHANSSON, Peter , WILHELMSSON, Markus
IPC分类号： B60P1/16 , B60G17/0195
摘要： The invention relates to a working machine vehicle (1) provided with a supporting frame (6) and a pivoted load container (5), wherein the vehicle (1) is configured to allow tilting of the load container (5) from a transport position to a tilted position for dumping of a load from the load container (5), wherein the vehicle (1) is provided with a suspension arrangement (20, 120) configured to reduce transfer of vibrations between the frame (6) and the load container (5) when the load container (5) is in its transport position, wherein the suspension arrangement (20, 120) comprises a spring element (11, 115) and a damper element (9, 10, 11, 109, 110, 112, 113), and wherein the vehicle (1) further is provided with at least one hydraulic hoist cylinder (9, 109) connected between the frame (6) and the load container (5) and arranged to lift and tilt the load container (5) to the tilting position for dumping. The hydraulic hoist cylinder (9, 109) forms part of a hydraulic system comprising a container (11, 112) for hydraulic fluid and at least one conduit (10, 110, 113) that connects the hydraulic hoist cylinder (9, 109) with the container (11, 112) so as to form a flow passage for hydraulic fluid between the hydraulic hoist cylinder (9, 109) and the hydraulic container (11, 112), and wherein the flow passage is arranged to exert a flow resistance to a hydraulic fluid flowing through the flow passage so as to dampen an oscillating flow through the flow passage and thereby form the damper element of the suspension arrangement (20, 120).

3. 发明申请

WO2019002306A1 A METHOD AND A SYSTEM FOR DETERMINING A LOAD IN A LINKAGE OF A WORKING MACHINE 审中-公开
公开(公告)号：WO2019002306A1
公开(公告)日：2019-01-03
申请号：PCT/EP2018/067138
申请日：2018-06-26
申请人： VOLVO CONSTRUCTION EQUIPMENT AB
发明人： KUMAR, Manoranjan , SKOGH, Lennart , EKEVID, Torbjörn
IPC分类号： E02F9/00 , E02F9/26 , G01L5/00 , F16C19/52
CPC分类号： E02F9/006 , E02F9/267 , F16C17/12 , F16C17/24 , F16C19/522 , G01L5/0009
摘要： The invention relates to a method for determining a load in a working machine (101) comprising a linkage (106) configured to be connected to an implement (107). The method comprises: determining (S1) at least one pressure in a first hydraulic cylinder (108) and at least one pressure in a second hydraulic cylinder (110) arranged to control the linkage and determining (S2) at least one link angle between at least two links in the linkage. The method further comprises, for a known linkage configuration and for a selected linkage bearing, determining (S3), for each of the first and second hydraulic cylinder, at least two perpendicular force components acting on the bearing, based on the determined at least one pressure in each of the first and second cylinders and the at least one link angle, determining (S4) a load on the bearing as a linear combination of the determined at least two perpendicular force components using predetermined constants for the linear combination, and providing (S5) information indicative of the load to an operator of the vehicle. The invention also relates to a system for performing the above method.

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