US5379634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Misfire-detecting system for internal combustion engines
Assignee: Honda Motor Co Ltd
•
Filing: 1992-07-13
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Granted: 1995-01-10
•
Expires: 2012-07-13
Abstract
Abstract A misfire-detecting system for an internal combustion engine having a plurality of cylinders. A rotational speed of the engine is detected and a rotational speed signal indicative of the detected rotational speed of the engine is output. The rotational speed signal is filtered. Occurrence of a misfire in the engine is determined based on the filtered rotational speed signal.
Inventors
- 👤 Shigetaka Kuroda
- 👤 Kazutomo Sawamura
- 👤 Yuuichi Shimasaki
- 👤 Masaki Kanehiro
- 👤 Takuji Ishioka
- 👤 Shigeru Maruyama
- 👤 Yoichi Nishimura
- 👤 Akira Katoh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:05
CPC Classifications
G; G01; G01M; G01M15/00; G01M15/04; G01M15/11; F; F02; F02B; F02B2275/00; F02B2275/18; F02D; F02D41/00; F02D41/02; F02D41/14; F02D41/1401; F02D2041/1413; F02D2041/1432; F02D2200/00; F02D2200/02; F02D2200/10; F02D2200/1012; F02D2200/1015; F02D2200/50; F02D2200/502; F02D41/021; F02D41/0215; F02D41/022; F02D41/0225; F02D41/1497; F02D41/1498
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
97 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine and for outputting a waveform signal indicative of the detected rotational speed of said engine; signal-processing means for filtering said waveform signal to take out a waveform component having a particular frequency range therefrom; differentiating means for differentiating said waveform component output from said signal-processing means; and misfire-detecting means for determining occurrence of a misfire in said engine by comparing an output from said differentiating means with a predetermined reference value.
Claim 2
Dependent Claim
97 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine and for outputting a waveform signal indicative of the detected rotational speed of said engine; signal-processing means for filtering said waveform signal to take out a waveform component having a particular frequency range therefrom; differentiating means for differentiating said waveform component output from said signal-processing means; and misfire-detecting means for determining occurrence of a misfire in said engine by comparing an output from said differentiating means with a predetermined reference value.
Claim 3
Dependent Claim
31 words
A misfire-detecting system according to claim 1, wherein said signal-processing means includes characteristic-changing means for changing a filtering characteristic of said signal-processing means according to said rotational speed of said engine.
Claim 4
Dependent Claim
39 words
A misfire-detecting system according to claim 1, wherein said misfire-determining means includes misfire cylinder-determining means for determining a cylinder in which a misfire has occurred, based upon a time lag due to a filtering characteristic of said signal-processing means.
Claim 5
Dependent Claim
145 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine and for outputting a rotational speed signal indicative of the detected rotational speed of said engine; signal-processing means for filtering said rotational speed signal to take out a particular frequency component therefrom; differentiating means for differentiating an output from said signal-processing means; and misfire-detecting means for determining occurrence of a misfire in said engine by comparing an output from said differentiating means with a predetermined reference value, wherein said signal-processing means comprises at least one of a low-pass filter for allowing components of said rotational speed signal lower than a first setting frequency thereof to pass therethrough and a high-pass filter for allowing components of said rotational speed signal higher than a second setting frequency thereof to pass therethrough.
Claim 6
Dependent Claim
145 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine and for outputting a rotational speed signal indicative of the detected rotational speed of said engine; signal-processing means for filtering said rotational speed signal to take out a particular frequency component therefrom; differentiating means for differentiating an output from said signal-processing means; and misfire-detecting means for determining occurrence of a misfire in said engine by comparing an output from said differentiating means with a predetermined reference value, wherein said signal-processing means comprises at least one of a low-pass filter for allowing components of said rotational speed signal lower than a first setting frequency thereof to pass therethrough and a high-pass filter for allowing components of said rotational speed signal higher than a second setting frequency thereof to pass therethrough.
Claim 7
Dependent Claim
142 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine and outputting a rotational speed signal indicative of the detected rotational speed of said engine; first signal-processing means for taking out a first particular frequency component from said rotational speed signal and outputting a first signal; second signal-processing means for taking out a second particular frequency component from said rotational speed signal and outputting a second signal having a predetermined amount of difference in phase from said first signal; third signal-processing means for combining said first signal and said second signal to output a third signal; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said third signal from said third signal-processing means with a predetermined reference value.
Claim 8
Dependent Claim
142 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine and outputting a rotational speed signal indicative of the detected rotational speed of said engine; first signal-processing means for taking out a first particular frequency component from said rotational speed signal and outputting a first signal; second signal-processing means for taking out a second particular frequency component from said rotational speed signal and outputting a second signal having a predetermined amount of difference in phase from said first signal; third signal-processing means for combining said first signal and said second signal to output a third signal; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said third signal from said third signal-processing means with a predetermined reference value.
Claim 9
Dependent Claim
36 words
A misfire-detecting system according to claim 5, wherein said first signal-processing means and said second means comprise low-pass filters for taking said first and second particular frequency components lower than respective first and second predetermined frequencies.
Claim 10
Dependent Claim
55 words
A misfire-detecting system according to claim 5, wherein said engine has a transmission connected thereto, and said misfire-detecting system includes gear ratio-detecting means for detecting a gear ratio of said transmission, and frequency characteristic-changing means for changing a frequency characteristic of said second signal-processing means in response to an output from said gear ratio-detecting means.
Claim 11
Dependent Claim
151 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine and outputting a rotational speed signal indicative of the detected rotational speed of said engine; first signal-processing means for taking out a particular frequency component from said rotational speed signal and outputting a first signal; second signal-processing means for taking out a particular frequency component from said rotational speed signal and outputting a second signal; phase-adjusting means for adjusting a phase of said second signal; amplifying means for amplifying an output from said phase-adjusting means; third signal-processing means for combining said first signal and an output from said amplifying means to output a third signal; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said third signal from said third signal-processing means with a predetermined reference value.
Claim 12
Dependent Claim
151 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine and outputting a rotational speed signal indicative of the detected rotational speed of said engine; first signal-processing means for taking out a particular frequency component from said rotational speed signal and outputting a first signal; second signal-processing means for taking out a particular frequency component from said rotational speed signal and outputting a second signal; phase-adjusting means for adjusting a phase of said second signal; amplifying means for amplifying an output from said phase-adjusting means; third signal-processing means for combining said first signal and an output from said amplifying means to output a third signal; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said third signal from said third signal-processing means with a predetermined reference value.
Claim 13
Dependent Claim
25 words
A misfire-detecting system according to claim 8, including gain control means for changing a gain of said amplifier according to operating conditions of said engine.
Claim 14
Dependent Claim
43 words
A misfire-detecting system according to claim 5 or 8, wherein said misfire-determining means includes misfire cylinder-determining means for determining a cylinder in which a misfire has occurred, based upon a time lag due to filtering characteristics of said first and second signal-processing means.
Claim 15
Dependent Claim
116 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and for outputting a waveform signal indicative of the detected rotation speed of said engine; filter means for taking out a waveform component having a particular frequency range from said waveform signal and for outputting a signal; differentiating means for differentiating said waveform component output from said filter means and for outputting an output; and misfire-determining means for determining occurrence of a misfire in said engine by comparing an output from said differentiating means with a predetermined reference value.
Claim 16
Dependent Claim
116 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and for outputting a waveform signal indicative of the detected rotation speed of said engine; filter means for taking out a waveform component having a particular frequency range from said waveform signal and for outputting a signal; differentiating means for differentiating said waveform component output from said filter means and for outputting an output; and misfire-determining means for determining occurrence of a misfire in said engine by comparing an output from said differentiating means with a predetermined reference value.
Claim 17
Dependent Claim
55 words
A misfire-detecting system according to claim 11, wherein said filter means comprises a low-pass filter for allowing components of said rotational speed signal lower than a first setting frequency thereof to pass therethrough and a high-pass filter for allowing components of said rotational speed signal higher than a second setting frequency thereof to pass therethrough.
Claim 18
Dependent Claim
185 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and for outputting a rotational speed signal indicative of the detected rotational speed of said engine; filter means for taking out a predetermined frequency component from said rotational speed signal and for outputting a signal, wherein said filter means comprises a low-pass filter for allowing components of said rotational speed signal lower than a first setting frequency thereof to pass therethrough and a high-pass filter for allowing components of said rotational speed signal higher than a second setting frequency thereof to pass therethrough; differentiating means for differentiating an output from said filter means and for outputting an output; difference-calculating means for calculating a difference between a present value of said output from said differentiating means and an average value of immediately preceding values thereof; misfire-determining means for determining occurrence of a misfire in said engine by comparing an output from said difference-calculating means with a predetermined reference value.
Claim 19
Dependent Claim
185 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and for outputting a rotational speed signal indicative of the detected rotational speed of said engine; filter means for taking out a predetermined frequency component from said rotational speed signal and for outputting a signal, wherein said filter means comprises a low-pass filter for allowing components of said rotational speed signal lower than a first setting frequency thereof to pass therethrough and a high-pass filter for allowing components of said rotational speed signal higher than a second setting frequency thereof to pass therethrough; differentiating means for differentiating an output from said filter means and for outputting an output; difference-calculating means for calculating a difference between a present value of said output from said differentiating means and an average value of immediately preceding values thereof; misfire-determining means for determining occurrence of a misfire in said engine by comparing an output from said difference-calculating means with a predetermined reference value.
Claim 20
Dependent Claim
30 words
A misfire-detecting system according to claim 13, wherein said misfire-determining means determines that a misfire has occurred in said engine when said difference is larger than said predetermined reference value.
Claim 21
Dependent Claim
29 words
A misfire-detecting system according to claim 11 or 13, wherein said misfire-determining means includes setting means for setting said predetermined reference value according to operating conditions of said engine.
Claim 22
Dependent Claim
44 words
A misfire-detecting system according to claim 11 to 13, wherein said misfire-determining means includes setting means for setting said predetermined reference value depending on a state of engagement between said engine and a driving system of a vehicle on which said engine is installed.
Claim 23
Dependent Claim
43 words
A misfire-detecting system according to claim 11 or 13, wherein said misfire-determining means includes setting means for setting said predetermined reference value depending on whether a vehicle on which said engine is installed is a manual transmission type or an automatic transmission type.
Claim 24
Dependent Claim
31 words
A misfire-detecting system according to claim 11 or 13, wherein said misfire-determining means includes setting means for setting said predetermined reference value according to a filtering characteristic of said filter means.
Claim 25
Dependent Claim
83 words
A misfire-detecting system according to claim 11 or 13, wherein said filter means comprises a low-pass filter for allowing components of said rotational speed signal lower than a first setting frequency thereof to pass therethrough and a high-pass filter for allowing components of said rotational speed signal higher than a second setting frequency thereof to pass therethrough, said misfire-detecting system including changeover means for selecting for use between said high-pass filter and said low-pass filter according to said rotational speed of said engine.
Claim 26
Dependent Claim
29 words
A misfire-detecting system according to claim 11 or 13, including correcting means for correcting said output from said differentiating means according to a filtering characteristic of said filter means.
Claim 27
Dependent Claim
41 words
A misfire-detecting system according to claim 11 or 13, wherein said misfire-determining means includes misfire cylinder-determining means for determining a cylinder in which a misfire has occurred, based upon a time lag due to a filtering characteristic of said filter means.
Claim 28
Dependent Claim
117 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and outputting a rotational speed signal indicative of the detected rotational speed of said engine; filter means for taking out a predetermined frequency component from said rotational speed signal and outputting a signal; correcting means for correcting the output from said filter means according to a filtering characteristic of said filter means; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said signal from said filter means with a predetermined reference value.
Claim 29
Dependent Claim
117 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and outputting a rotational speed signal indicative of the detected rotational speed of said engine; filter means for taking out a predetermined frequency component from said rotational speed signal and outputting a signal; correcting means for correcting the output from said filter means according to a filtering characteristic of said filter means; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said signal from said filter means with a predetermined reference value.
Claim 30
Dependent Claim
133 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and outputting a rotational speed signal indicative of the detected rotational speed of said engine; filter means for taking out a predetermined frequency component from said rotational speed signal and outputting a signal; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said signal from said filter means with a predetermined reference value, wherein said misfire-determining means includes setting means for setting said predetermined reference value depending on a state of engagement between said engine and a driving system of a vehicle on which said engine is installed.
Claim 31
Dependent Claim
133 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and outputting a rotational speed signal indicative of the detected rotational speed of said engine; filter means for taking out a predetermined frequency component from said rotational speed signal and outputting a signal; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said signal from said filter means with a predetermined reference value, wherein said misfire-determining means includes setting means for setting said predetermined reference value depending on a state of engagement between said engine and a driving system of a vehicle on which said engine is installed.
Claim 32
Dependent Claim
132 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and outputting a rotational speed signal indicative of the detected rotational speed of said engine; filter means for taking out a predetermined frequency component from said rotational speed signal and outputting a signal; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said signal from said filter means with a predetermined reference value, wherein said misfire-determining means includes setting means for setting said predetermined reference value depending on whether a vehicle on which said engine is installed is a manual transmission type or an automatic transmission type.
Claim 33
Dependent Claim
132 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and outputting a rotational speed signal indicative of the detected rotational speed of said engine; filter means for taking out a predetermined frequency component from said rotational speed signal and outputting a signal; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said signal from said filter means with a predetermined reference value, wherein said misfire-determining means includes setting means for setting said predetermined reference value depending on whether a vehicle on which said engine is installed is a manual transmission type or an automatic transmission type.
Claim 34
Dependent Claim
120 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and outputting a rotational speed signal indicative of the detected rotational speed of said engine; filter means for taking out a predetermined frequency component from said rotational speed signal and outputting a signal; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said signal from said filter means with a predetermined reference value, wherein said misfire-determining means includes setting means for setting said predetermined reference value according to a filtering characteristic of said filter means.
Claim 35
Dependent Claim
120 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and outputting a rotational speed signal indicative of the detected rotational speed of said engine; filter means for taking out a predetermined frequency component from said rotational speed signal and outputting a signal; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said signal from said filter means with a predetermined reference value, wherein said misfire-determining means includes setting means for setting said predetermined reference value according to a filtering characteristic of said filter means.
Claim 36
Dependent Claim
145 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and outputting a rotational speed signal indicative of the detected rotational speed of said engine; filter means for taking out a predetermined frequency component from said rotational speed signal and outputting a signal, said filter means includes a low-pass filter for allowing components of said rotational speed signal lower than a first setting frequency thereof to pass therethrough and a high-pass filter for allowing components of said rotational speed signal higher than a second setting frequency thereof to pass therethrough; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said signal from said filter means with a predetermined reference value.
Claim 37
Dependent Claim
145 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and outputting a rotational speed signal indicative of the detected rotational speed of said engine; filter means for taking out a predetermined frequency component from said rotational speed signal and outputting a signal, said filter means includes a low-pass filter for allowing components of said rotational speed signal lower than a first setting frequency thereof to pass therethrough and a high-pass filter for allowing components of said rotational speed signal higher than a second setting frequency thereof to pass therethrough; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said signal from said filter means with a predetermined reference value.
Claim 38
Dependent Claim
171 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and outputting a rotational speed signal indicative of the detected rotational speed of said engine; filter means for taking out a predetermined frequency component from said rotational speed signal and outputting a signal, said filter means includes a low-pass filter for allowing components of said rotational speed signal lower than a first setting frequency thereof to pass therethrough and a high-pass filter for allowing components of said rotational speed signal higher than a second setting frequency thereof to pass therethrough; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said signal from said filter means with a predetermined reference value, said misfire-detecting system including changeover means for selecting for use between said high-pass filter and said low-pass filter according to said rotational speed of said engine.
Claim 39
Dependent Claim
171 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and outputting a rotational speed signal indicative of the detected rotational speed of said engine; filter means for taking out a predetermined frequency component from said rotational speed signal and outputting a signal, said filter means includes a low-pass filter for allowing components of said rotational speed signal lower than a first setting frequency thereof to pass therethrough and a high-pass filter for allowing components of said rotational speed signal higher than a second setting frequency thereof to pass therethrough; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said signal from said filter means with a predetermined reference value, said misfire-detecting system including changeover means for selecting for use between said high-pass filter and said low-pass filter according to said rotational speed of said engine.
Claim 40
Dependent Claim
130 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and outputting a rotational speed signal indicative of the detected rotational speed of said engine; filter means for taking out a predetermined frequency component from said rotational speed signal and outputting a signal; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said signal from said filter means with a predetermined reference value, wherein said misfire-determining means includes misfire cylinder-determining means for determining a cylinder in which a misfire has occurred, based upon a time lag due to a filtering characteristic of said filter means.
Claim 41
Dependent Claim
130 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders and a crankshaft, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine whenever said crankshaft rotates through a predetermined angle and outputting a rotational speed signal indicative of the detected rotational speed of said engine; filter means for taking out a predetermined frequency component from said rotational speed signal and outputting a signal; and misfire-determining means for determining occurrence of a misfire in said engine by comparing a value of said signal from said filter means with a predetermined reference value, wherein said misfire-determining means includes misfire cylinder-determining means for determining a cylinder in which a misfire has occurred, based upon a time lag due to a filtering characteristic of said filter means.
Claim 42
Dependent Claim
114 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine and outputting a rotational speed signal indicative of the detected rotational speed of said engine; signal-processing means for filtering said rotational speed signal to take out a particular frequency component therefrom; and misfire-determining means for determining occurrence of a misfire in said engine by comparing an output from said signal-processing means with a predetermined reference value, wherein said misfire-determining means includes misfire cylinder-determining means for determining a cylinder in which a misfire has occurred, based upon a time lag due to a filtering characteristic of said signal-processing means.
Claim 43
Dependent Claim
114 words
A misfire-detecting system for an internal combustion engine having a plurality of cylinders, comprising: engine rotational speed-detecting means for detecting a rotational speed of said engine and outputting a rotational speed signal indicative of the detected rotational speed of said engine; signal-processing means for filtering said rotational speed signal to take out a particular frequency component therefrom; and misfire-determining means for determining occurrence of a misfire in said engine by comparing an output from said signal-processing means with a predetermined reference value, wherein said misfire-determining means includes misfire cylinder-determining means for determining a cylinder in which a misfire has occurred, based upon a time lag due to a filtering characteristic of said signal-processing means.
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USPTO Annuity & Maintenance Windows
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| 3.5 Years (Year 4) | 1998-01-09 | 1998-07-11 | 1999-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-09 | 2002-07-11 | 2003-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-09 | 2006-07-11 | 2007-01-10 | $7700.00 | Window Closed / Lapsed |