Scania Cv Ab

Marcus Engman

Afram Kourie

Richard Boström

Frank Mohr

Martin Berglund

Anders Björkman

A method in a control arrangement of a vehicle and a control arrangement for a vehicle for downshifting gears in an uphill slope are presented. The method comprises, when the vehicle is travelling in an uphill slope using an initial gear of the vehicle's automated manual transmission gearbox: simulating at least one speed profile for a downshift to, and a usage of, at least one gear; determining that a minimal speed of each one of the at least one simulated speed profile has a value indicating that the actual speed of the vehicle will be less than or equal to zero in the uphill slope; opening a clutch before is reduced to a value less than zero; activating at least one vehicle brake; shifting vehicle's automated manual transmission gearbox to a start gear; closing the clutch; and deactivating the at least one vehicle brake.

Method, computer program, computer-readable medium, control arrangement and a vehicle for downshifting gears in an uphill slope

A method and a system for a vehicle comprising: one or more power sources including at least one electrical machine; and a drivetrain for transferring torque between the one or more power sources and at least one drive wheel of the vehicle. The method comprises: controlling, when no positive drive torque (T) is transferred from the drivetrain to the at least one drive wheel, the at least one electrical machine to provide a backlash torque (T) to the drivetrain, the backlash torque (T) having a controlled value for turning the drivetrain if there is a backlash present in the drivetrain.

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Årsta, Sweden

Marcus Engman