Patent ID: 7823897
Filing Date: 2010-11-02
Classification: B60K,B60Y

Abstract:
1. A method of operating a work vehicle, comprising: monitoring for a speed ratio setting request signal and for a front-wheel-drive (FWD)-only request signal, determining from the speed ratio setting request signal if a requested speed ratio setting represented thereby is one of at least one predetermined speed ratio setting among a plurality of speed ratio settings possible for the work vehicle upon receipt of the FWD-only request signal, if so, outputting at least one control signal engaging a FWD-only mode enabling FWD operation of the work vehicle but disabling rear-wheel-drive (RWD) operation of the work vehicle, and determining if (i) the FWD-only mode is requested, (ii) the requested speed ratio setting is changed from a reverse speed ratio setting to a predetermined forward speed ratio setting of the at least one predetermined speed ratio setting, and (iii) a RWD system of the work vehicle is operating in the forward direction, and if those conditions are met, outputting the at least one control signal engaging the FWD-only mode.