Patent US4851791A successfully refreshed from Google Patents.
Patent US6339742B2 successfully refreshed from Google Patents.
US6339742B2
Expired / Lapsed
US
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System and method for engine data trending and analysis
Assignee: Detroit Diesel Corp
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Filing: 2001-04-24
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Granted: 2002-01-15
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Expires: 2021-04-24
Abstract
Abstract A system and method for monitoring engine operating data include monitoring various engine operating parameters and periodically storing engine data when corresponding criteria are met. In one embodiment, enigne operating parameters may include engine speed, powertrain demand, or a fluid temperature, for example. Engine operating data such as oil pressure, turbo boost pressure, battery voltage, fuel economy, oil temperature, coolant temperature, maximum RPM, maximum vehicle speed, and throttle position sensor voltage, for example may be stored for trending and analysis. In addition, engine components may be monitored to determine service or replacement.
Inventors
- 👤 II S. Miller Weisman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:09
CPC Classifications
B; B60; B60K; B60K31/00; B60K31/02; B60K31/04; B60K31/042; B60K31/045; B60K31/047; B60W; B60W10/00; B60W10/04; B60W10/06; B60W10/10; B60W30/00; B60W30/14; B60W30/143; B60W30/146; B60W30/18; B60W30/18009; B60W30/18054; B60W30/192; F; F01; F01P; F01P7/00; F01P7/02; F01P7/04; F01P7/048; F01P7/08; F02; F02D; F02D17/00; F02D17/04; F02D41/00; F02D41/02; F02D41/021; F02D41/0215; F02D41/0225; F02D41/04; F02D41/042; F02D41/08; F02D41/086; F02D41/22; F02D41/222; B60W50/00; B60W2050/0001; B60W2050/0019; B60W2050/0022; B60W2050/0042; B60W2050/0043; B60W2050/0052; B60W2510/00; B60W2510/06; B60W2510/0638; B60W2510/0676; B60W2555/00; B60W2555/20; B60W2710/00; B60W2710/06; B60W2710/0616; B60W2710/0666; F01P2023/00; F01P2023/08; F01P2025/00; F01P2025/08; F01P2025/13; F01P2025/40; F01P2025/46; F01P2031/00; F01P2060/00; F01P2060/06; F02B; F02B3/00; F02B3/06; F02D41/14; F02D41/1401; F02D2041/1413; F02D2041/1432; F02D2200/00; F02D2200/02; F02D2200/04; F02D2200/0414; F02D2200/10; F02D2200/1002; F02D2200/50; F02D2200/501; F02D2250/00; F02D2250/16; F02D2250/18; F02D2250/26; F16; F16H; F16H63/00; F16H63/40; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/40; Y02T10/80; Y02T10/84
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
51 words
A method for collecting operating data from a multi-cylinder internal combustion engine having an engine control module, the method comprising: monitoring engine operating conditions to determine when to store selected engine operating data; and periodically storing engine operating data in the engine control module in response to the step of monitoring.
Claim 2
Independent Claim
51 words
A method for collecting operating data from a multi-cylinder internal combustion engine having an engine control module, the method comprising: monitoring engine operating conditions to determine when to store selected engine operating data; and periodically storing engine operating data in the engine control module in response to the step of monitoring.
Claim 3
Dependent Claim
33 words
The method of claim 1 wherein the step of monitoring includes monitoring engine rotational speed and wherein engine operating data is stored only when the engine rotational speed is within a predetermined range.
Claim 4
Dependent Claim
20 words
The method of claim 2 further comprising: storing an indication of cumulative engine use corresponding to the engine operating data.
Claim 5
Dependent Claim
14 words
The method of claim 3 wherein the indication corresponds to hours of engine operation.
Claim 6
Dependent Claim
34 words
The method of claim 1 wherein the step of monitoring includes monitoring oil temperature and wherein the step of periodically storing includes storing oil pressure when the oil temperature is above a corresponding threshold.
Claim 7
Dependent Claim
26 words
The method of claim 5 further comprising: determining an average oil pressure; and monitoring the stored oil pressure data to detect a large drop in pressure.
Claim 8
Dependent Claim
29 words
The method of claim 1 wherein the step of monitoring includes monitoring powertrain demand and engine speed and wherein the step of periodically storing includes storing turbo boost pressure.
Claim 9
Dependent Claim
20 words
The method of claim 7 further comprising calculating an average turbo boost pressure based on the stored turbo boost pressure.
Claim 10
Dependent Claim
26 words
The method of claim 7 further comprising monitoring the turbo boost pressure to detect an air leak based on a reduction in the turbo boost pressure.
Claim 11
Dependent Claim
36 words
The method of claim 1 wherein the step of periodically storing includes storing battery voltage samples when engine rotational speed is within a predetermined range, the method further comprising calculating and storing an average battery voltage.
Claim 12
Dependent Claim
30 words
The method of claim 10 further comprising: monitoring the average battery voltage to detect an increase which exceeds a corresponding threshold to providing an indication of a voltage regulator fault.
Claim 13
Dependent Claim
24 words
The method of claim 11 further comprising storing an indication of cumulative engine use corresponding to a first one of the battery voltage samples.
Claim 14
Dependent Claim
39 words
The method of claim 1 wherein the step of periodically storing includes periodically storing an indication of fuel economy, the method further comprising determining an average fuel economy based on a current and previously stored indication of fuel economy.
Claim 15
Dependent Claim
30 words
The method of claim 1 wherein the step of periodically storing includes storing a maximum fluid temperature and an indication of cumulative engine use corresponding to the maximum fluid temperature.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-01-14 | 2005-07-16 | 2006-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-01-14 | 2009-07-16 | 2010-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-01-14 | 2013-07-16 | 2014-01-15 | $7700.00 | Window Closed / Lapsed |