Front wheel drive engagement control system for agricultural vehicles
US5802489A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1994 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Nov 14, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K17/346
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control system for engaging, disengaging and re-engaging a front wheel drive in an agricultural vehicle includes a control circuit configured to receive signals representative of vehicle operating parameters and to generate control signals corresponding to the desired state (i.e. engaged or disengaged) of a front wheel drive engagement circuit. Sensors are associated with the rear wheels, rear service brakes, implement positioning circuit, the vehicle body and the front axle to provide parameter signals related to wheel speed, braking, implement position and vehicle speed. Control logic executed by the control circuit in a continuously cycled routine determines the desired state of the engagement circuit based upon all operating parameters. The control circuit applies an appropriate control signal to the engagement circuit causing engagement or disengagement in accordance with the desired state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.