Device and Method for Communication Between a Control System for Small Internal Combustion Engines and an External Computer
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Abstract
By incorporating digital control systems for ignition of, and to some extent for fuel injection in, small internal combustion engines, opportunities have been created for the connection of external computers, in order thereby to be able to change the characteristics of the control system, as well as to be able to read operational data from the same. The operational data may be e.g. operating time and trip meter. The method according to the invention means that a combined communication port and stop entry is created, which will result in a cost-effective implementation of the communication interface when a stop entry with an associated transient protection already exists.
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Citations
28 Claims
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1-12. -12. (canceled)
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13. A tool comprising:
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a manually started internal combustion engine free of a starter battery; an electronic control circuit to control the internal combustion engine; a stop button to stop said internal combustion engine; and a connection being arranged between the stop button and said electronic control circuit, wherein said connection between the stop button and the control circuit is arranged to be used for data communications between the control circuit and an external computer. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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- 24. A method of communicating data from a tool comprising a manually started internal combustion engine free of a starter battery, an electronic control circuit for controlling the internal combustion engine, a stop button for stopping the internal combustion engine, and a connection between the electronic control circuit and the stop button, the method comprising communicating data between the electronic control circuit and an external computer.
Specification