Location-based modification of two-stroke engine calibration

A two-stroke engine control system for a recreational vehicle, comprising:

• a locator device configured to generate location signal indicative of a location of the recreational vehicle;
• a throttle position sensor configured to generate a throttle signal indicative of an input from an operator-actuated throttle device;
• an engine speed sensor configured to generate an engine speed signal indicative of revolutions per minute of a two-stroke engine including a cylinder defining a combustion chamber and an exhaust port and an exhaust assembly including an exhaust valve configured to adjust an orifice size defined by the exhaust valve and at least a portion of the exhaust port;
• and
• an engine control unit (ECU) including a processor and a memory device storing a first calibration map defining, based on at least the throttle signal and the engine speed signal, a first exhaust valve position, wherein the processor is configured to:
• receive the location signal, the throttle signal, and the engine speed signal;
• determine, based on the location signal, a second calibration map;
• determine, based on the second calibration map, the throttle signal, and the engine speed signal, a second exhaust valve position;
• and
• control the two-stroke engine to operate the exhaust valve at the second exhaust valve position.

A method of controlling a two-stroke engine of a recreational vehicle, comprising:

• receiving, by a processors of an engine control unit, a location signal indicative of a location of the recreational vehicle, a throttle signal indicative of an input from an operator-actuated throttle device, and an engine speed signal indicative of revolutions per minute of the two-stroke engine having an exhaust valve configured to adjust an orifice size defined by the exhaust valve and at least a portion of an exhaust port of the two-stroke engine;
• receiving, by the processor from a memory device, a first calibration map defining, based on at least the throttle signal and the engine speed signal, a first exhaust valve position;
• determining, by the processor based on the location signal, a second calibration map;
• determining, by the processor based on the second calibration map, the throttle signal, and the engine speed signal, a second exhaust valve position;
• and
• controlling, by the processor, the two-stroke engine to operate the exhaust valve at the second exhaust valve position.