Abstract: A motor vehicle is disclosed having an internal combustion engine and an integrated starter-generator drivingly connected to a crankshaft of the internal combustion engine by a belt drive. Operation of the internal combustion engine and the integrated starter-generator is controlled by an electronic controller in response to a number of inputs. The electronic controller is arranged to use the internal combustion engine and the integrated starter-generator to actively reduce driveline shuffle in one of a number of shuffle reduction modes that are selected by the electronic controller based on at least the current rotational speed of the internal combustion engine.

Abstract: A motor vehicle is disclosed having an internal combustion engine and an integrated starter-generator drivingly connected to a crankshaft of the internal combustion engine by a belt drive. Operation of the internal combustion engine and the integrated starter-generator is controlled by an electronic controller in response to a number of inputs. The electronic controller is arranged to use the internal combustion engine and the integrated starter-generator to actively reduce driveline shuffle in one of a number of shuffle reduction modes that are selected by the electronic controller based on at least the current rotational speed of the internal combustion engine.

Abstract: In order to control vehicle shuffle, ie undesired fore and aft oscillations of the vehicle, the invention discloses a method comprising the steps of: continuously sensing the speed of the vehicle motor and producing a signal representing the speed analysing the speed signal determining a mean value for the speed signal identifying fluctuations from the mean value filtering the signal to remove the mean value and to retain the fluctuations applying a phase change to the filtered signal applying a deadband such that signals below a predetermined magnitude are ignored amplifying the filtered and phase changed signal resulting from the deadband application, and supplying the filtered, phase changed and amplified signal to a controller which controls the torque output of the vehicle motor.