System and method for supplying fuel to an engine via multiple fuel paths

摘要

A system and method for supplying fuel to an engine is disclosed. In one example, a first controller supplies injector commands to a second controller via an asynchronous serial communication bus. The system may reduce the complexity of supplying two or more fuels to an engine.

主权项

1. An engine system, comprising:
a first group of fuel injectors; a second group of fuel injectors; a serial communication bus; a first controller including instructions for directly driving the first group of fuel injectors and supplying commands via the serial communication bus to operate the second group of fuel injectors; and a second controller including instructions for receiving the commands via the serial communication bus and directly driving the second group of fuel injectors, where the first group of fuel injectors and the second group of fuel injectors supply different fuel types to an engine, and where the commands include fuel injector pulse widths, and where the fuel injector pulse widths are sent over the serial communication bus at a timing that is responsive to engine position.