Inspection method for inspecting electric drive apparatus
US9279743B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2014 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Nov 11, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M13/022
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An inspection method of the present invention performs a step of giving the electric motor an instructing for rotating a foot shaft in a reverse direction and checking whether the foot shaft is rotating in the reverse direction, and a step of checking whether hydraulic pressure acting on the hydraulic pump has reached a predetermined pressure level. By checking a rotating direction of the electric motor, it is possible to check electrical connections. By checking the hydraulic pressure, it is possible to check whether there is any trouble in a hydraulic system. Namely, the present invention can perform an electrical connection check and a hydraulic pressure check in a collective fashion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.