公开(公告)号：EP0852544B2

公开(公告)日：2004-01-07

申请号：EP96933851.6

申请日：1996-09-23

Applicant: INGERSOLL-RAND COMPANY ,  SAUER-DANFOSS INC.

Inventor： YATES, Steve, K. ,  MAGALSKI, Edward, D. ,  Williams, Keith

IPC: B60K17/356

CPC classification number: E02D3/026 ,  B60K17/356 ,  B60K23/0808

Abstract: An earth compactor is propelled by a hydraulic circuit that includes a first hydraulic motor (36) to drive a drum member (15) and a second hydraulic motor (32) to drive a tractor member mounted on tires (7), with a traction control system that includes a motor speed sensing device (44, 46) on each hydraulic motor (36, 32). The speed sensing devices (44, 46) transmit electrical signals to a microcontroller (42), which compares the speeds and varies the speed of the tires (7) or drum (15) to maintain a preselected ratio between the two, thereby maintaining traction of both members.

公开(公告)号：EP0852544B1

公开(公告)日：1999-11-24

申请号：EP96933851.6

申请日：1996-09-23

Applicant: INGERSOLL-RAND COMPANY

Inventor： YATES, Steve, K. ,  MAGALSKI, Edward, D. ,  Williams, Keith

IPC: B60K17/356

CPC classification number: E02D3/026 ,  B60K17/356 ,  B60K23/0808

Abstract: An earth compactor is propelled by a hydraulic circuit that includes a first hydraulic motor (36) to drive a drum member (15) and a second hydraulic motor (32) to drive a tractor member mounted on tires (7), with a traction control system that includes a motor speed sensing device (44, 46) on each hydraulic motor (36, 32). The speed sensing devices (44, 46) transmit electrical signals to a microcontroller (42), which compares the speeds and varies the speed of the tires (7) or drum (15) to maintain a preselected ratio between the two, thereby maintaining traction of both members.