F02M63/0205

Multipurpose Vehicle
20170253120 · 2017-09-07 ·

A multipurpose vehicle includes an engine that has a plurality of cylinders, a traveling vehicle body that has a traveling device that is driven based on a driving force of the engine, a man-operable accelerator operating tool, a controller that controls a fuel injection quantity with respect to the plurality of cylinders of the engine based on an amount of operation of the accelerator operating tool, and a vehicle speed sensor that detects a traveling speed of the traveling vehicle body. If the traveling speed of the traveling vehicle body reaches or exceeds a set maximum traveling speed, the controller suppresses the fuel injection quantity supplied with respect only to one/some of the plurality of cylinders, irrespective of the amount of operation of the accelerator operating tool.

Fuel injector characterization

Various methods are provided for characterizing fuel injector operation. In one embodiment, a method of characterizing fuel injector operation comprises determining a flow error of a single fuel injector of two or more fuel injectors positioned in a first fuel rail by comparing a sum of each of a plurality of injector commands for the single injector to a fuel amount pumped into the first fuel rail, the fuel amount being predetermined.