ENHANCED TRACTIVE POWER AT LOW SPEEDS
First Claim
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1. A method for operating an internal combustion engine, comprising:
- determining a coolant temperature of an engine coolant of the internal combustion engine;
comparing the coolant temperature with a predetermined threshold temperature; and
reducing a thermal input into the engine coolant by changing at least one operating parameter of the internal combustion engine responsive to a coolant temperature higher than the predetermined threshold temperature.
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Abstract
A method is disclosed for operating an internal combustion engine in which a coolant temperature of an engine coolant of the internal combustion engine is determined and is compared with a predetermined threshold temperature. If the coolant temperature is higher than the predetermined threshold temperature, a thermal input into the engine coolant is reduced by changing at least one operating parameter of the internal combustion engine. This can be done, for example, by raising a charging pressure of the internal combustion engine.
18 Citations
18 Claims
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1. A method for operating an internal combustion engine, comprising:
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determining a coolant temperature of an engine coolant of the internal combustion engine; comparing the coolant temperature with a predetermined threshold temperature; and reducing a thermal input into the engine coolant by changing at least one operating parameter of the internal combustion engine responsive to a coolant temperature higher than the predetermined threshold temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A motor vehicle with an engine and a controller that is configured to:
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determine a coolant temperature of an engine coolant of the engine; and reduce a thermal input into the engine coolant by increasing a charging pressure of the engine responsive to a coolant temperature higher than a predetermined threshold temperature. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method for reducing a thermal input of an engine, comprising:
increasing a charging pressure of the engine based on a charge air temperature relative to a maximum charge air temperature responsive to a coolant temperature above a predetermined threshold temperature. - View Dependent Claims (15, 16, 17, 18)
Specification