VEHICLE SPEED CONTROL SYSTEM

摘要

A control system for a vehicle operable to implement a speed control function, the control system being operable to: receive an input of a target speed at which the vehicle is intended to travel; determine an instantaneous value of a primary target speed torque parameter corresponding to an amount of torque that should be developed at a given position in a powertrain in order to control the vehicle to travel at the target speed; and filter by means of filter means a value of a torque parameter input thereto to generate a filtered torque parameter value, the system being operable to command the powertrain to develop at said position an amount of torque corresponding to the filtered torque parameter value, wherein the system is operable to input to the filter means a secondary target speed torque parameter value determined in dependence on the primary target speed torque parameter value and a current value of filtered torque parameter generated by the filter means.

主权项

1. A control system for a vehicle operable to implement a speed control function, the control system being operable to:
receive an input of a target speed at which the vehicle is intended to travel; determine an instantaneous value of a primary target speed torque parameter corresponding to an amount of torque that should be developed at a given position in a powertrain in order to control the vehicle to travel at the target speed; and filter by means of a filter a value of a torque parameter input thereto to generate a filtered torque parameter value, the system being operable to command the powertrain to develop at said position an amount of torque corresponding to the filtered torque parameter value, wherein the system is operable to input to the filter a secondary target speed torque parameter value determined in dependence on the primary target speed torque parameter value and a current value of filtered torque parameter generated by the filter.