Method of operating a vehicle and a vehicle

A method of operating a vehicle,

• the vehicle comprising:
• an engine;
• a throttle operator being moveable by a driver of the vehicle;
• a throttle valve regulating airflow to the engine, a throttle valve position being based at least in part on a throttle operator position;
• a continuously variable transmission (CVT) operatively connected to the engine, the CVT including a driving pulley, a driven pulley, and a belt operatively connecting the driving pulley to the driven pulley;
• at least one ground engaging member operatively connected to the driven pulley and comprising at least one of:
• a wheel and a track;
• a piston operatively connected to the driving pulley for applying a piston force to the driving pulley when actuated and thereby changing an effective diameter of the driving pulley;
• and
• a control unit for controlling actuation of the piston and the piston force,
• the method comprising:
• determining a driven pulley speed of the driven pulley;
• detecting a stall condition indicative of the vehicle being stalled, the stall condition comprising:
• the driven pulley speed decreasing;
• and
• a rate of decrease of the driven pulley speed being greater in magnitude than a stall threshold rate;
• and
• responsive to the detection of the stall condition, setting the piston force to be zero.