Volvo Truck Corporation

Oskar Lygner

Fredrik Karpenman

A method is provided for controlling an actuator of a vehicle transmission, the actuator being connected to an engaging sleeve, the engaging sleeve being axially displaceable between a gear wheel disengaging position and a gear wheel engaging position of the vehicle transmission for executing a transmission gear shift. The method includes actuating the actuator during a first predetermined time period for initiating a translational movement of the engaging sleeve front the gear wheel disengaging position towards the gear wheel engaging position, wherein the first predetermined time period is smaller than a total time period for the engaging sleeve to reach the gear wheel engaging position, determining, during a second predetermined time period initiated after the duration of the first predetermined time period, if the engaging sleeve has reached the gear wheel engaging position, and actuating the actuator during a third predetermined time period if it was determined that the engaging sleeve failed to reach the gear wheel engaging position during the second predetermined time period. A corresponding computer, computer readable medium, control unit, and vehicle transmission are also provided.

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Alingsås, Sweden

Oskar Lygner