Method of controlling a vehicle

Abstract

A method of controlling a vehicle presenting a plurality of wheels, an engine and a clutch for selectively connecting the engine to a number of the wheels includes receiving a torque control signal indicative of a demanded output torque of the engine, and observing a value of a first vehicle operation parameter being the vehicle speed or a parameter which is indicative of the vehicle speed, controlling the clutch so as to be engaged if the received torque control signal indicates that the demanded engine torque is minimal or below a first threshold value and the observed first vehicle operation parameter value is above a second threshold value, subsequently to the step of controlling the clutch so as to be engaged, performing a test disengagement of the clutch, including at least partly disengaging the clutch, observing a behavior, in response to the test disengagement, of a second vehicle operation parameter, and based at least partly on the observation of the behavior of the second vehicle operation parameter, determining whether to control the clutch so as to be re-engaged or disengaged.

Dependencies are inferred from the claim text.