Integrity check for electric steer system
US6580990B2 · kind B2 · utility
12Cited by
12References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2001 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Aug 27, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/0487
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An industrial lift truck includes a steering unit which operates in response to steering commands to operate an electric steering motor that turns a steerable wheel. The integrity of the steering unit is checked by applying alternating steering commands to the steering unit and monitoring the resulting current flow through the steering motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.