Hystat drive system having coasting functionality
US9096230B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2012 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Jan 27, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Y2200/413
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A drive system for a machine is disclosed. The drive system may have an engine, a pump driven by the engine to pressurize fluid, a motor connected to the pump via an inlet passage and an outlet passage, and a traction device driven by the motor. The drive system may also have an operator input device movable from a neutral position through a range to a maximum displaced position to affect a speed of the engine, and a controller in communication with the input device and at least one of the pump and motor. The controller may be configured to gradually adjust a displacement of the at least one of the pump and motor to slow the traction device over a period of time after the operator input device is returned to the neutral position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.