System for controlling engine fueling according to vehicle location
First Claim
1. A system for controlling fueling of an internal combustion engine of a vehicle according to vehicle altitude, comprising:
- a receiver associated with the vehicle for receiving signals relating to the altitude of the vehicle;
a fueling system responsive to a fueling signal to provide fuel to the internal combustion engine of the vehicle;
means responsive to said signals for generating an ambient pressure value as a function of the altitude of the vehicle; and
means for generating said fueling signal as a function of said ambient pressure value.
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Accused Products
Abstract
A system for controlling fueling of an internal combustion engine based upon vehicle position includes a receiver associated with the vehicle that is capable of receiving position and altitude information. The vehicle includes a control computer that delivers control signals to an engine fueling system, as well as to a turbocharger control system. The control computer includes a module that receives the altitude information and uses that information to evaluate changes in ambient air pressure that might detrimentally affect turbocharger speed. In one embodiment, the control computer reduces the fueling signal to reduce engine speed in relation to a decrease in ambient air pressure accompanying an increase in vehicle elevation. In another embodiment, the control computer uses the highly accurate altitude information together with engine speed information provides signals to the turbocharger control system.
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Citations
17 Claims
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1. A system for controlling fueling of an internal combustion engine of a vehicle according to vehicle altitude, comprising:
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a receiver associated with the vehicle for receiving signals relating to the altitude of the vehicle; a fueling system responsive to a fueling signal to provide fuel to the internal combustion engine of the vehicle; means responsive to said signals for generating an ambient pressure value as a function of the altitude of the vehicle; and means for generating said fueling signal as a function of said ambient pressure value.
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2. A system for preventing overspeed of a turbocharger coupled to an internal combustion engine of a vehicle, in which the speed of the turbocharger is related to the power of the engine, and further in which the vehicle includes an engine control module operable to control engine power, the system comprising:
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a receiver associated with the vehicle for receiving an externally transmitted altitude signal indicative of the altitude of the vehicle; and means within the engine control module for reducing the engine power when said altitude signal corresponds to an ambient air pressure below a predetermined threshold value.
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3. A system for preventing overspeed of a turbocharger coupled to an internal combustion engine of a vehicle, in which the speed of the turbocharger is related to the power of the engine, and further in which the vehicle includes an engine control module operable to control engine power, the system comprising:
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a receiver associated with the vehicle for receiving signals indicative of the altitude of the vehicle; and means within the engine control module for limiting engine power to a limit value determined by the altitude of the vehicle. - View Dependent Claims (4, 5, 6)
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7. A system for controlling fueling of an internal combustion engine of a vehicle according to vehicle altitude, comprising:
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a receiver associated with the vehicle for receiving an externally transmitted altitude signal indicative of the altitude of the vehicle; a fueling system responsive to a fueling signal to provide fuel to the internal combustion engine of the vehicle; and means for generating said fueling signal in relation to said altitude signal. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification