US4884056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for displaying trouble in an electronic control system of a motor vehicle
Assignee: Subaru Corp
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Filing: 1988-08-16
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Granted: 1989-11-28
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Expires: 2008-08-16
Abstract
Abstract A system for displaying trouble in an electronic control system such as an anti-skid brake system of a motor vehicle. The system has a detector for detecting failure in a wheel speed sensor, and a warning lamp for displaying a detected failure. When a failure in the sensor is displayed on the lamp, an inspector depresses a brake pedal of the vehicle in accordance with a predetermined pattern to intermittently turn on a brake pedal switch to produce a failure signal representing the nature of the detected failure. In response to the failure signal, the warning lamp intermittently lights up in accordance with a predetermined pattern representing the nature of the failure.
Inventors
- 👤 Seiichi Ishizeki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:00
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/88; B60T8/885; B60T2270/00; B60T2270/40; B60T2270/416
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
113 words
A system for displaying trouble in an electronic control system of a motor vehicle having detecting means for detecting failure in the electronic control system, and a warning lamp for displaying a detected failure, the system comprising: means for detecting nature of a failure in the electronic control system; comparing means for comparing the pattern of a pulse signal generated by operating a brake pedal switch in the vehicle with a predetermined stored pattern and for producing a failure signal representing the nature of the detected failure; and display means responsive to the failure signal for intermittently lighting the warning lamp in accordance with a predetermined pattern representing the nature of the failure.
Claim 2
Independent Claim
113 words
A system for displaying trouble in an electronic control system of a motor vehicle having detecting means for detecting failure in the electronic control system, and a warning lamp for displaying a detected failure, the system comprising: means for detecting nature of a failure in the electronic control system; comparing means for comparing the pattern of a pulse signal generated by operating a brake pedal switch in the vehicle with a predetermined stored pattern and for producing a failure signal representing the nature of the detected failure; and display means responsive to the failure signal for intermittently lighting the warning lamp in accordance with a predetermined pattern representing the nature of the failure.
Claim 3
Dependent Claim
17 words
The system according to claim 1 wherein the electronic control system is an electronic brake control system.
Claim 4
Dependent Claim
47 words
The system according to claim 1, wherein: said electronic control system includes a plurality of wheel speed sensors, and wherein the detected failure is failure of one of said wheel speed sensors and the nature of the failure represents the position of the failed wheel speed sensor.
Claim 5
Dependent Claim
16 words
The system according to claim 1, wherein: the electronic control system is an anti-skid brake system.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-27 | 1993-05-29 | 1993-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-27 | 1997-05-29 | 1997-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-27 | 2001-05-29 | 2001-11-28 | $7700.00 | Window Closed / Lapsed |