Emission control system with temperature measurement and methods for use therewith
First Claim
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1. An emission control system comprising:
- an emission control device having a plurality of passages to facilitate emission control of an exhaust gas from a vehicle engine;
a controller that operates by;
determining a resonant frequency of a coil; and
generating a control signal to control induction heating of the emission control device based on the resonant frequency of the coil, wherein generating the control signal includes determining a temperature of the emission control device based on a temperature hysteresis curve and the resonant frequency of the coil, and wherein the temperature hysteresis curve has a first temperature value and a second temperature value for a value of the resonant frequency of the coil; and
an alternating current (AC) source that responds to the control signal by selectively generating a power signal to the coil to facilitate the induction heating of the emission control device via the coil.
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Abstract
Aspects of the subject disclosure may include, for example, an emission control system that includes an emission control device having a plurality of passages to facilitate emission control of an exhaust gas from a vehicle engine. A controller determines a resonant frequency of a coil and generates a control signal to control induction heating of the emission control device based on the resonant frequency of the coil. An alternating current (AC) source responds to the control signal by selectively generating a power signal to the coil to facilitate the induction heating of the emission control device via the coil.
26 Citations
20 Claims
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1. An emission control system comprising:
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an emission control device having a plurality of passages to facilitate emission control of an exhaust gas from a vehicle engine; a controller that operates by; determining a resonant frequency of a coil; and generating a control signal to control induction heating of the emission control device based on the resonant frequency of the coil, wherein generating the control signal includes determining a temperature of the emission control device based on a temperature hysteresis curve and the resonant frequency of the coil, and wherein the temperature hysteresis curve has a first temperature value and a second temperature value for a value of the resonant frequency of the coil; and an alternating current (AC) source that responds to the control signal by selectively generating a power signal to the coil to facilitate the induction heating of the emission control device via the coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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determining, via a controller, a resonant frequency of a coil; generating, via the controller, a control signal to control induction heating of an emission control device based on the resonant frequency of the coil, wherein generating the control signal includes determining a temperature of the emission control device based on a temperature hysteresis curve and the resonant frequency of the coil, and wherein the temperature hysteresis curve has a first temperature value and a second temperature value for a value of the resonant frequency of the coil; and selectively generating, via an alternating current (AC) source and responsive to the control signal, a power signal to the coil to facilitate the induction heating of the emission control device via the coil. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification