发明名称 |
Off-road vehicle with redundant non-contact multi-revolution angle sensor |
摘要 |
An off-road work vehicle has a steer-by-wire steering system having a device for determining the angular displacement of a steering wheel. The device has a cam configured to rotate about an axis at an identical angular speed as the steering wheel, a first sensor proximal to a facing outer surface of the cam and being configured to determine a distance between the first sensor and the facing outer surface of the cam, a second sensor proximal to a facing outer surface of the cam and being configured to determine a distance between the second sensor and the facing outer surface of the cam, and a processor operably connected with the first and second sensors and configured to determine an angular position of the steering wheel and a direction of rotation of the steering wheel based upon data generated by the first and/or the second sensor. The distance between each of the first and second sensors and the facing outer surface of the cam changes gradually over a first major portion of the facing outer surface and sharply over a second, minor portion of the facing outer surface. The two sensors are redundant to one another and help maintain the robustness of the system.
|
申请公布号 |
US8380397(B2) |
申请公布日期 |
2013.02.19 |
申请号 |
US20090487930 |
申请日期 |
2009.06.19 |
申请人 |
CNH AMERICA LLC;FOSTER CHRISTOPHER A.;STROSSER RICHARD P. |
发明人 |
FOSTER CHRISTOPHER A.;STROSSER RICHARD P. |
分类号 |
B62D6/00;G01M17/00;G06F7/00 |
主分类号 |
B62D6/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|