Method for identifying an operating state of an engine soak timer
First Claim
1. A method for use by a vehicle control assembly of the type having a soak timer and adapted for use in combination with an internal combustion engine, said method being effective to ascertain the existence of a short time state within the soak timer, said method comprising the steps of determining whether the engine has been recently activated;
- creating a cooling signature for a certain material;
measuring the temperature of said certain material at a first time;
inferring the temperature of said certain material at a second time by use of said cooling signature;
comparing said measured temperature and said inferred temperature; and
identifying the existence of said short time state by use of said comparison.
2 Assignments
0 Petitions
Accused Products
Abstract
A method for determining the existence of a “short time” type state within a vehicle control assembly 10. The method requires the measurement of the temperature 59 of engine coolant 16 at a first time 61 and the determination and/or the inferential creation of the temperature 60 of the engine coolant 16 at a second and later time 62. A “short time” type state is identified when the temperature 60 at the second time 62 is greater than or equal to the temperature 59 at the first time 61.
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Citations
10 Claims
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1. A method for use by a vehicle control assembly of the type having a soak timer and adapted for use in combination with an internal combustion engine, said method being effective to ascertain the existence of a short time state within the soak timer, said method comprising the steps of determining whether the engine has been recently activated;
- creating a cooling signature for a certain material;
measuring the temperature of said certain material at a first time;
inferring the temperature of said certain material at a second time by use of said cooling signature;
comparing said measured temperature and said inferred temperature; and
identifying the existence of said short time state by use of said comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- creating a cooling signature for a certain material;
Specification