Brake system having a brake capacity test mode for a machine having a hydrostatic drivetrain
US9097341B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2012 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Oct 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/28
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A brake system and method includes a test mode for determining a capacity of the brake system provided on a machine having a hydrostatic drive. A hydrostatic drive target differential pressure range is determined to simulate a test torque. A machine ground speed limit, hydrostatic drive actual differential pressure, and actual ground speed of the machine are determined. An output pressure of the hydrostatic pump is modulated to drive the hydrostatic drive actual differential pressure toward the hydrostatic drive target differential pressure range. A first test fault condition is determined when the actual ground speed exceeds the machine ground speed limit. A second test fault condition is determined when the hydrostatic drive actual differential pressure is outside the hydrostatic drive target differential pressure range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.