Method and device for controlling fuel injection in internal combustion engine
First Claim
1. A fuel injection control system for an internal combustion engine system said engine having a driven shaft, a sensor arrangement associated with said driven shaft for sensing the instantaneous rotational speed of said driven shaft during the rotation of said driven shaft for less than a complete rotation and for sensing the rotational speed of said driven shaft for a complete revolution thereof including the measured less than a complete rotation, and controlling said engine fuel injection system from these measurements.
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Accused Products
Abstract
An improved method and system for the control of an engine fuel injection system. The control senses the speed variations either during a portion of a complete cycle and a complete cycle and/or from cycle to cycle in order to determine the load on the engine from preprogrammed maps based upon the engine characteristics. From this load and the speed reading, it is possible to obtain the desired engine fuel injection control. This not only reduces the costs of the system by reducing the number of sensors, but also permits adjustments to be made more rapidly.
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Citations
34 Claims
- 1. A fuel injection control system for an internal combustion engine system said engine having a driven shaft, a sensor arrangement associated with said driven shaft for sensing the instantaneous rotational speed of said driven shaft during the rotation of said driven shaft for less than a complete rotation and for sensing the rotational speed of said driven shaft for a complete revolution thereof including the measured less than a complete rotation, and controlling said engine fuel injection system from these measurements.
- 29. A four cycle internal combustion engine for controlling a fuel injection system of the engine wherein the engine has a driven shaft, a sensor arrangement associated with said driven shaft for sensing the rotational speed of said driven shaft, said control measuring the rotational speed of said driven shaft during a revolution containing a compression stroke and measuring the rotational speed of said driven shaft during a revolution containing an exhaust stroke and controlling said fuel injection system from these measurements.
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34. An internal combustion engine for controlling a fuel injection system of said engine wherein the engine has a driven shaft, a sensor arrangement associated with said driven shaft for sensing two rotational conditions of said driven shaft during a first rotation of said driven shaft and for sensing same two rotational conditions of said driven shaft during the immediately succeeding rotation of said driven shaft and controlling said engine system on the third rotation of said driven shaft from these measurements.
Specification