EP0353331A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fault finding system with selective interactive communication
Assignee: Robert Bosch GmbH
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Filing: 1988-08-05
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Granted: —
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Expires: 2008-08-05
Abstract
Abstract A vehicle control system includes at least one electronic control unit (ECU1...ECUn) which has means for detecting a fault within the unit (ECU1...ECUn) itself and/or any actuators associated therewith, and means for illuminating a warning lamp (F1...Fn) in response to fault detection. The system includes means for interrogating the control unit (ECU1...ECUn), for example to detect the nature of a fault, whose operation may be initiated by depressing a manually controlled switch (SW1). A light, e.g. the warning lamp itself (F1...Fn), flashes in a coded sequence to "talk back" to the user.
Inventors
- 👤 Helmut Denz
- 👤 Florin Margarit-Metaxa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 18:00
CPC Classifications
G; G07; G07C; G07C5/00; G07C5/08; G07C5/0808; G01; G01R; G01R31/00; G01R31/005; G01R31/006; G01R31/007
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
74 words
An electronic system for controlling the operation of a vehicle including at least one electronic control unit (ECU) connected to at least one actuator or sensor, the system being arranged to carry out a plurality of tests for indicating faults in parts of the system, characterised by manually operable switch means for providing a signal indicative of a requested test and visual display means for providing a visual indication to confirm the test requested.
Claim 2
Dependent Claim
74 words
An electronic system for controlling the operation of a vehicle including at least one electronic control unit (ECU) connected to at least one actuator or sensor, the system being arranged to carry out a plurality of tests for indicating faults in parts of the system, characterised by manually operable switch means for providing a signal indicative of a requested test and visual display means for providing a visual indication to confirm the test requested.
Claim 3
Dependent Claim
84 words
A system as claimed in claim 1 including a plurality of electronic control units each connected to said visual display means and to at least one actuator or sensor and each arranged to operate in at least one mode for detecting a fault within the unit and/or said at least one actuator or sensor, in 'which said switch means is operable to address a desired ECU and the visual display means is activated by the selected ECU to confirm that it has been selected.
Claim 4
Dependent Claim
66 words
A system as claimed in claim 1 or 2, in which the or each ECU is arranged to operate in a plurality of operating modes for detecting a fault within the unit and/or said at least one actuator or sensor, said switch means is operable to select a particular operating mode and the visual display means is activated to indicate which operating mode has been selected.
Claim 5
Dependent Claim
35 words
A system as claimed in claim 2 or 3, in which the or each test includes a plurality of stages and the visual display means is arranged to indicate the progress of the requested test.
Claim 6
Dependent Claim
34 words
A system as claimed in claim 4 in which the visual display means further indicates one or more steps to be carried out by the operator to enable the continuation of the requested test.
Claim 7
Independent Claim
29 words
A system as claimed in any preceding claim in which the visual display means comprises a lamp arranged to flash in a coded sequence indicative of the selected test.
Claim 8
Dependent Claim
20 words
A system as claimed in claim 6 including more than one ECU, each ECU being provided with a separate lamp.
Claim 9
Independent Claim
21 words
A system as claimed in any of claims 1 to 5, in which the visual display means is a digital display.
Claim 10
Independent Claim
35 words
A system as claimed in any preceding claim in which the visual display means is arranged to indicate the presence of certain faults during running of the engine while no test is being carried out.
References Cited (Backward Citations)
EP0072000B1
Cited
WO1986001620A1
Cited
DE3440555A1
Cited
DE3540599A1
Cited
EP0231607A1
Cited
WO1988002122A1
Cited
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