Verification engine controller software
First Claim
1. In an electronic engine control system having diagnostics for determining whether a component of the system has failed and a means for communicating with a diagnostic scan tool, a method for determining the quality of the system, the method comprising the steps of:
- monitoring an engine parameter representative of the quality of a subsystem of interest;
comparing said parameter to at least one quality limit, wherein said at least one quality limit represents an acceptable performance boundary for a fully functional engine control system; and
based on the result of said comparing step, indicating whether said subsystem is of satisfactory quality.
20 Assignments
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Accused Products
Abstract
A method of determining the quality of subsystems of an electronic engine control system is provided. The method monitors an engine parameter representative of a subsystem of interest and compares the parameter to at least one quality limit. The at least one quality limit represents an acceptable performance boundary for a fully functional engine control system. The method then indicates, based on the result of the comparison, whether the subsystem is of satisfactory quality. The method is arranged, without limitation, to determining the quality of start time, start flare, idle control during transmission shift, and speed control.
6 Citations
20 Claims
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1. In an electronic engine control system having diagnostics for determining whether a component of the system has failed and a means for communicating with a diagnostic scan tool, a method for determining the quality of the system, the method comprising the steps of:
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monitoring an engine parameter representative of the quality of a subsystem of interest;
comparing said parameter to at least one quality limit, wherein said at least one quality limit represents an acceptable performance boundary for a fully functional engine control system; and
based on the result of said comparing step, indicating whether said subsystem is of satisfactory quality. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. In an electronic engine control system having diagnostics for determining whether a component of the system has failed and a means for communicating with a diagnostic scan tool, a method for determining the quality of the system comprising:
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monitoring an engine parameter representative of the quality of a subsystem of interest;
comparing said parameter to at least one quality limit, wherein said at least one quality limit is a function of a second parameter and represents an acceptable performance boundary for a fully functional engine control system; and
based on the result of said comparing step, indicating whether said subsystem is of satisfactory quality. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. In an electronic engine control system having diagnostics for determining whether a component of the system has failed and a means for communicating with a diagnostic scan tool having a display, a method for determining the quality of the system comprising:
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maintaining a timer;
monitoring an engine parameter of interest while said timer is active;
comparing said parameter to at least one limit;
upon said parameter reaching said at least one limit, comparing the present value of said timer to a quality boundary, wherein said quality boundary represents an acceptable performance boundary for a fully functional engine control system; and
based on the result of said comparison of said timer to said quality boundary, causing the display to indicate whether said subsystem is of satisfactory quality. - View Dependent Claims (17, 18, 19, 20)
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Specification