Construction machine
US9975522B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2015 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Oct 29, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/32
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydraulic excavator (1) includes a wireless authentication device (42) performing wireless authentication with a portable key device (41) and a vehicle body controller (39) allowing or prohibiting start of the engine (15) on the basis of authentication by the wireless authentication device (42) and an operation of a power switch (12). The wireless authentication device (42) transmits a request signal within an authenticable range and performs authentication when it receives an ID code for authentication replied from the portable key device (41) on the basis of the transmitted request signal. The vehicle body controller (39) allows start of the engine (15) by the power switch (12) when a gate lock lever (13) is switched to a lock position and the wireless authentication device (42) performs authentication by the portable key device (41).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.