Engine management system

An engine management system, comprising:

• an engine control system determining an engine operating control value, the engine operating control value being supplied to an engine to control an aspect of engine operation;
• a palm-size computer communicating engine management data to the engine control system;
• and
• an external computer communicating engine management data to the palm-size computer, wherein the palm-size computer may be coupled to the engine control system and coupled to the external computer independently.

An engine management system for an internal combustion engine, the engine management system comprising:

• an engine control system calculating an engine operating control value, the engine operating control value being adapted to be supplied to the internal combustion engine to vary engine performance;
• a palm-size computer transportable relative to the engine control system, the palm-size computer having height, width, and thickness dimensions no larger than approximately 6 inches by approximately 4 inches by approximately 1 inch, and the palm-size computer running a set of engine management tools for communicating engine management data to the engine control system;
• and
• an external computer communicating with the palm-size computer, the external computer downloading to the palm-size computer engine management tools and engine management files and uploading from the palm-size computer engine management files.

An engine management system, comprising:

• an internal combustion engine;
• an actuator mounted adjacent said engine to control an aspect of engine operation;
• an engine control system having a memory and an output, wherein said memory has stored therein instructions for determining an engine operating control value and having an output on which a signal commensurate with said control value is incident, said output being coupled to said actuator;
• a palm-size computer communicating engine management data used in determining the engine operating control value to the engine control system;
• a first coupler coupling said palm-size computer to said engine control system;
• an external computer communicating said engine management data to said palm-size computer, wherein said palm-size computer may be coupled to said engine control system and coupled to said external computer independently;
• and
• a second coupler coupling said palm-size computer to said external computer.