초록 ▼

A hydrostatic drive (1) with a hydraulic pump (3) and a plurality of hydraulic motors (6-9) that are hydraulically linked with the hydraulic pump (3). One speed sensor (20; 21; 22; 23) each allocated to a respective hydraulic motor (6; 7; 8; 9) and is linked with a control device (24) and detects th

A hydrostatic drive (1) with a hydraulic pump (3) and a plurality of hydraulic motors (6-9) that are hydraulically linked with the hydraulic pump (3). One speed sensor (20; 21; 22; 23) each allocated to a respective hydraulic motor (6; 7; 8; 9) and is linked with a control device (24) and detects the speed (n1; n2; n3; n4) of the allocated hydraulic motor (6; 7; 8; 9). Every hydraulic motor (6; 7; 8; 9) is functionally linked with a brake device (26; 27; 28; 29) that in turn is linked with the control device (24). When the speed (n1; n2; n3; n4) of one of the hydraulic motors (6; 7; 8; 9) exceeds a predetermined threshold value (ng), the control device (24) triggers the brake device (26; 27; 28; 29) allocated to the associated hydraulic motor (6; 7; 8; 9).

대표청구항 ▼

1. A method for operating a hydrostatic drive (1), which includes at least one hydraulic pump (3); a steering angle transmitter (49) for detecting a steering angle (α) of a vehicle driven by the drive (1) and a plurality of hydraulic motors (6-9) hydraulically connected with the hydraulic pump (3),

1. A method for operating a hydrostatic drive (1), which includes at least one hydraulic pump (3); a steering angle transmitter (49) for detecting a steering angle (α) of a vehicle driven by the drive (1) and a plurality of hydraulic motors (6-9) hydraulically connected with the hydraulic pump (3), wherein one speed sensor of a plurality of sensors (20; 21; 22; 23) and one brake device (26; 27; 28; 29) are each operatively connected to a respective hydraulic motor of a plurality of motors (6; 7; 8; 9), said method comprising the steps of:detecting the speeds (n1; n2; n3; n4) of collectively said hydraulic motors (6-9) with speed sensors (20-23) associated with each of the hydraulic motors (6-9), and the steering angle (α) of a vehicle propelled by the drive (1), determining whether one of the speeds (n1; n2; n3; n4) of the hydraulic motors (6-9) exceeds a predetermined threshold value (ng), wherein a speed difference of the hydraulic motors (6-9) resulting from cornering of the vehicle is taken into consideration dependent on the detected steering angle (α), and braking the hydraulic motor (6; 7; 8; 9) of which the speed (n1; n2; n3; n4) exceeds the predetermined threshold value (ng) through operation of the brake device (26; 27; 28; 29) which is operatively associated with said hydraulic motor (6; 7; 8; 9). 2. The method according to claim 1, wherein the brake device (26; 27; 28; 29) is released upon the speed (n1; n2; n3; n4) of the therewith associated hydraulic motor (6; 7; 8; 9) falls below the predetermined threshold value (ng).3. The method according to claim 2, wherein the threshold value (ng) is determined by an arithmetical calculation based on the speeds (n1; n2; n3; n4) of the collective hydraulic motors (6-9).4. The method according to claim 3, wherein the threshold value is the arithmetical average of the speeds (n1; n2; n3; n4) of collectively said hydraulic motors (6-9) plus a tolerance constant (C).5. The method according to claim 2, wherein the drive (1) comprises a further speed sensor (48) for detecting the road speed (v) of a vehicle driven by the drive (1) wherein the threshold value (ng) is determined on the basis of the detected vehicle road speed (v).