公开(公告)号：US20040115065A1

公开(公告)日：2004-06-17

申请号：US10317210

申请日：2002-12-12

Applicant: Caterpillar Inc.

Inventor： Hongliu Du ,  Mark P. Vonderwell

IPC: F04B049/00

CPC classification number: F04B1/2014 ,  F04B51/00 ,  F04B2201/12051

Abstract: A sensor for a variable displacement pump is provided. The pump has a housing containing a swashplate that is adapted to rotate about an axis. The sensor includes a magnet connected to the swashplate to rotate with the swashplate. A semiconductor chip is disposed proximate the magnet and within the housing. A control is adapted to direct a current through the semiconductor chip and to determine the voltage across the semiconductor chip. The control is further adapted to determine the angle of the swashplate relative to the housing based on the determined voltage.

Abstract translation: 提供了一种用于可变排量泵的传感器。 泵具有容纳旋转斜盘的壳体，该斜盘适于围绕轴线旋转。 传感器包括连接到斜盘以与斜盘一起旋转的磁体。 半导体芯片靠近磁体设置在壳体内。 控制器适于引导电流通过半导体芯片并确定半导体芯片两端的电压。 该控制还适于基于所确定的电压来确定斜盘相对于壳体的角度。