Patent ID: 9222228
Filing Date: 2015-12-29
Classification: B60W,E01C,F16D

Abstract:
1. A road paver comprising: a power plant; a hydraulic pump or generator; a power transfer train coupling the power plant to the hydraulic pump or generator, wherein the power transfer train comprises a clutch that is selectively shiftable between an engaged state and a disengaged state; and a clutch control device for shifting the clutch between the engaged state and the disengaged state, wherein the clutch control device is configured to: receive a first command specifying that the clutch be shifted from the engaged state to the disengaged state; determine a command history for a predetermined length of time prior to a present time, wherein the command history comprises at least the first command; select, based on the command history, an earliest received command for the predetermined length of time prior to the present time; determine whether the earliest received command specifies that the clutch be shifted from the disengaged state to the engaged state; and upon determining that the earliest received command does not specify that the clutch be shifted from the disengaged state to the engaged state, shift the clutch from the engaged state to the disengaged state and wherein the power transfer train further comprises a power dividing pump transfer gear for driving the hydraulic pump or the generator, and wherein the clutch is disposed between the power plant and the pump transfer gear, or in the pump transfer gear, or at an output of the pump transfer gear and the road paver comprises at least two clutches, where at least one of the clutches is configured to actuate at first intervals, and where at least one of the clutches is configured to actuate at second intervals, where the first intervals are shorter than the second intervals.