Fuel consumption saving system and a method of operation thereof
First Claim
1. A fuel consumption saving system for use in combination with an electronic control unit of an internal combustion engine of a motor vehicle, the motor vehicle having a plurality of condition and engine parameter sensors connected to the electronic control unit operating the engine, the system comprising a controller adapted for connection to the electronic control unit and to a preselected first set of the sensors and a preselected second set of the sensors, said controller determining, based on respective first sensor values sensed by said first set of the sensors, an actual engine load factor and calculating, for said actual engine load factor, a modified engine load factor corresponding to a predefined efficiency region of operation of the engine, said controller modifying respective second sensor values sensed by said second set of the sensors to actual optimal values therefor corresponding to said modified engine load factor and transmitting said actual optimal values to the electronic control unit, whereby in use the electronic control unit accepts said actual optimal values for the operation of the engine at said predefined efficiency region.
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Abstract
A fuel consumption saving system for an internal combustion engine incorporates a means for determining the actual load factor from a set of first sensors, determining an actual minimum load factor, and modifying the actual values of sensed data in response to the actual minimum load factor thereby to yield actual optimal values for transmission to an engine control unit for controlling the engine.
17 Citations
18 Claims
- 1. A fuel consumption saving system for use in combination with an electronic control unit of an internal combustion engine of a motor vehicle, the motor vehicle having a plurality of condition and engine parameter sensors connected to the electronic control unit operating the engine, the system comprising a controller adapted for connection to the electronic control unit and to a preselected first set of the sensors and a preselected second set of the sensors, said controller determining, based on respective first sensor values sensed by said first set of the sensors, an actual engine load factor and calculating, for said actual engine load factor, a modified engine load factor corresponding to a predefined efficiency region of operation of the engine, said controller modifying respective second sensor values sensed by said second set of the sensors to actual optimal values therefor corresponding to said modified engine load factor and transmitting said actual optimal values to the electronic control unit, whereby in use the electronic control unit accepts said actual optimal values for the operation of the engine at said predefined efficiency region.
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12. A method for saving fuel consumption of an internal combustion engine of a motor vehicle having a plurality of condition sensors and engine parameter sensors connected to an electronic control unit operating the engine, the method comprising the steps of:
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a) determining an actual engine load factor from respective first sensor values sensed by a preselected first set of the sensors; b) determining from the actual engine load factor a corresponding modified load factor for a predefined efficiency region of operation of the engine; c) modifying respective second sensor values sensed by a preselected second set of the sensors to actual optimal values therefore corresponding to said modified load factor; and d) transmitting the actual minimum optimal values to the electronic control unit. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification