JP2019518199A - エンジンの排気成分を監視する無線周波数システム及び方法 - Google Patents
エンジンの排気成分を監視する無線周波数システム及び方法 Download PDFInfo
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Abstract
Description
本特許出願は、2015年6月8日に出願された米国特許出願第14/733,525号、及び2015年6月8日に出願された米国特許出願第14/733,486号の出願日についての優先権及び利益を主張すると共にこれらの一部継続出願であり、これらの開示及び内容全体は、参照により本明細書に明確に組み込まれる。
本発明は、全米科学財団によって授与された受賞番号IIP 1330313に基づいて、政府支援を受けてなされた。政府は、本発明における一定の権利を有する。
本発明は、内燃機関、または例えば粒子状物質、気体または液体成分などの排気成分を発生させる他の工程において、エンジンの排気成分を監視するための無線周波数システム及び方法に関する。
Claims (20)
- エンジンの排気成分を監視する無線周波数システムであって、
前記排気成分を含むハウジングと、
前記ハウジングへと広がって無線周波数信号を送受信する1つまたは複数の無線周波数センサーと、
前記無線周波数信号の1つまたは複数のパラメータの変化に基づいて前記無線周波数信号を制御して前記排気成分の変化を監視する制御装置と、を備える、前記無線周波数システム。 - 前記無線周波数信号が、無線周波数信号範囲に広がり、
前記制御装置が、前記無線周波数信号範囲の所定の領域における前記無線周波数信号の前記パラメータのうちの1つまたは複数の変化を測定する、請求項1に記載の無線周波数システム。 - 前記制御装置が、前記ハウジング内の1つまたは複数の所定の空間領域に対応する1つまたは複数の所定の無線周波数信号範囲における前記無線周波数信号の前記パラメータのうちの1つまたは複数の変化を測定する、請求項1に記載の無線周波数システム。
- 前記制御装置が、前記無線周波数信号のマグニチュードまたは振幅の変化及び/または前記無線周波数信号の相の変化を測定する、請求項1に記載の無線周波数システム。
- 1つまたは複数の排気成分が、1つまたは複数の所定の無線周波数信号範囲における前記無線周波数信号の前記マグニチュード及び/または前記相の変化を測定することによって監視される、請求項4に記載の無線周波数システム。
- 前記制御装置が、前記排気成分の変化率を監視するために、前記無線周波数信号の前記パラメータの1つまたは複数のパラメータの変化率を測定する、請求項1に記載の無線周波数システム。
- 前記1つまたは複数の無線周波数センサーに送信された電力を変化させて、前記無線周波数信号を改良する、請求項1に記載の無線周波数システム。
- 前記制御装置が、前記排気成分の排出率、蓄積率、及び/または消耗率を監視する、請求項6に記載の無線周波数システム。
- 排気成分を含むハウジングと、前記ハウジングへと広がって無線周波数信号を送受信する1つまたは複数の無線周波数センサーと、制御装置と、を含む、無線周波数システムにおける前記排気成分を監視する方法であって、
前記方法は、前記無線周波数信号の1つまたは複数のパラメータの変化に基づいて前記無線周波数信号を制御するステップと、前記排気成分の変化を監視するステップと、を備える、前記方法。 - 前記無線周波数信号が、無線周波数信号範囲に広がり、前記無線周波数信号範囲の所定の領域における前記無線周波数信号の前記パラメータの1つまたは複数の変化を測定するステップをさらに備える、請求項9に記載の方法。
- 前記ハウジング内の1つまたは複数の所定の空間領域に対応する1つまたは複数の所定の無線周波数信号範囲における前記無線周波数信号の前記パラメータの1つまたは複数の変化を測定するステップをさらに備える、請求項10に記載の方法。
- 前記所定の空間領域が、測定される前記無線周波数信号の前記パラメータに対して敏感である所定の空間領域に対応する、請求項11に記載の方法。
- 前記所定の空間領域が、測定される前記無線周波数信号の前記パラメータに対して好ましい振る舞いを示す所定の空間領域に対応する、請求項11に記載の方法。
- 前記測定の応答時間を減らすために、1つまたは複数の所定の狭い無線周波数信号範囲における前記無線周波数信号の前記パラメータの1つまたは複数をサンプリングするステップをさらに備える、請求項10に記載の方法。
- 前記1つまたは複数の所定の狭い無線周波数信号範囲が、前記無線周波数信号の1つまたは複数の所定の共振モードに対応する、請求項14に記載の方法。
- 前記無線周波数信号のマグニチュードまたは振幅の変化及び/または前記無線周波数信号の相の変化を測定するステップをさらに備える、請求項9に記載の方法。
- 1つまたは複数の排気成分が、1つまたは複数の所定の無線周波数信号範囲における前記無線周波数信号の前記マグニチュード及び/または前記相の変化を測定することによって監視される、請求項16に記載の方法。
- 前記排気成分の変化率を監視するために、前記無線周波数信号の前記パラメータの1つまたは複数の変化率を測定するステップをさらに備える、請求項9に記載の方法。
- 前記排気成分の前記変化率を、前記排気成分の前記変化率の期待値と比較するステップをさらに備える、請求項9に記載の方法。
- 前記排気成分の排出率、蓄積率、及び/または消耗率を監視するステップをさらに備える、請求項10に記載の方法。
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US15/481,670 US10260400B2 (en) | 2015-06-08 | 2017-04-07 | Radio frequency system and method for monitoring engine-out exhaust constituents |
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