Process and device for controlling an internal combustion engine
First Claim
1. A method for controlling an internal combustion engine, comprising the steps of:
- coupling a control unit to a tester via an interface;
storing, in a first storage element, data corresponding to control signals transmitted by the tester;
storing, in a second storage element, data from the control unit;
determining whether the data stored in the first storage element is allowable;
selecting the data stored in the first storage element if the data stored in the first storage element is allowable, otherwise selecting the data stored in the second storage element; and
controlling the engine using the selected data.
1 Assignment
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Accused Products
Abstract
A process and a device for controlling an internal combustion engine in which a control unit is temporarily connected to an external tester via an interface. At least one storage device of the control unit is configured as first and second storage elements. The first storage element is supplied with data corresponding to a signal transmitted from the tester. The second storage element is supplied with data from the control unit. Either the contents of the first storage element or the contents of the second storage element are selected, with the contents of the second storage element being selected when the contents of the first storage element have an unallowable value.
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Citations
9 Claims
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1. A method for controlling an internal combustion engine, comprising the steps of:
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coupling a control unit to a tester via an interface; storing, in a first storage element, data corresponding to control signals transmitted by the tester; storing, in a second storage element, data from the control unit; determining whether the data stored in the first storage element is allowable; selecting the data stored in the first storage element if the data stored in the first storage element is allowable, otherwise selecting the data stored in the second storage element; and controlling the engine using the selected data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A control unit for controlling an internal combustion engine, comprising:
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an interface for coupling the control unit to a tester; at least one storage device configured as first and second storage elements; means for supplying the first storage element with first data corresponding to at least one control signal transmitted by the tester; means for supplying the second storage element with second data from the control unit; and means for selecting the first data if the first data is allowable, otherwise selecting the second data, wherein the selected data is used to control the engine.
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Specification