Eaton Corporation

Alfred John Richardson

Robert Stanley Wheeler

Keith Wright

Martin Fowler

The invention relates to a method for calculating a modification to the predetermined amount of torque needed to provide an urge to move sensation for a vehicle, the modification to take account of the weight at which and gradient on which the vehicle is operating and then commanding the engine to generate said modified torque and to transmit the modified urge torque to a clutch device to provide the urge to move according to the current operating conditions.

Calculation of automated friction clutch urge torque on grades

An automated clutch system for transferring torque from an engine to a change gear transmission is connected to a processing unit which uses various input parameters to calculate the grade on which the vehicle is operating and its current weight to determine an appropriate start gear to minimise clutch slip when the vehicle is launched from rest.

Automatic selection of start gear

A control for a vehicle drive line system ( ) including an automated vehicle dry master clutch ( ) drivingly interposed in between a fuel-controlled engine ( ) and the input shaft ( ) of a mechanical transmission. When engaged in a start ratio and at sensed idle conditions (THL<REF and OS<REF), if the vehicle brake system ( and C) is not applied, the engine ( ) is commanded to generate an output torque (T ) equal to a selected idle drive torque (T ) at idle speed (ES&equals;IDLE), the engine is commanded to rotate at idle speed, and the clutch is caused to engage with a torque capacity equal to the idled

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Knutsford, United Kingdom

Alfred John Richardson