Malfunction diagnosis system for engine
First Claim
1. A diagnostic system for aiding a technician or engineer in diagnosing engine faults in a mechanism that includes an engine, the diagnostic system comprising an electronic control unit operatively coupled to a memory storage device and to one or more engine sensors, and means for collecting operational data from the one or more engine sensors, comparing the operational data with a predetermined data, comparing the operational data with predetermined data so as to determine if the operational data indicates a fault, storing the collected operational data in the memory storage device, retrieving the operational data from the memory storage device, and displaying the retrieved operational data on a display such that the data indicating a fault is distinguished from operational data that does not indicate a fault.
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Accused Products
Abstract
A malfunction diagnosis system is provided to aid a technician or engineer in diagnosing an internal combustion engine. The diagnostic system comprises an electronic control unit that is operatively coupled to a data storage device and to one or more engine sensors. The electronic control unit is configured to collect data from the one or more engine sensors, compare the collected data with predetermined engine parameter values, and store the collected and compared data in the data storage device in various formats. A computer is selectively coupled to the data storage device. The computer program is configured to display specific sets of data and to clearly display any faulty engine parameter values resulting from the collected data comparison.
50 Citations
24 Claims
- 1. A diagnostic system for aiding a technician or engineer in diagnosing engine faults in a mechanism that includes an engine, the diagnostic system comprising an electronic control unit operatively coupled to a memory storage device and to one or more engine sensors, and means for collecting operational data from the one or more engine sensors, comparing the operational data with a predetermined data, comparing the operational data with predetermined data so as to determine if the operational data indicates a fault, storing the collected operational data in the memory storage device, retrieving the operational data from the memory storage device, and displaying the retrieved operational data on a display such that the data indicating a fault is distinguished from operational data that does not indicate a fault.
- 3. A diagnostic system for aiding in diagnosing an engine, the diagnostic system comprising an electronic control unit operatively coupled to a data storage device and to one or more engine sensors, the electronic control unit configured to collect operational data from the one or more engine sensors, to compare the collected operational data with predetermined data to determine if the operational data indicates a fault, and to store the collected operational data in the data storage device, an internal system within the electronic control unit with a computer processor being operatively coupled to a memory, an interface device and an external system with a display, the internal system comprising a computer program stored in the memory and configured to retrieve operational data from the data storage device, the computer program further configured to display the operational data collected from the engine sensors through the interface device on the display such that the data indicating a fault is distinguished from operational data that does not indicate a fault.
- 11. A method for diagnosing a malfunction in an internal combustion engine which includes an electronic control unit including a memory storage device, the method comprising collecting operational data from one or more engine sensors connected to the electronic control unit, comparing the operational data with predetermined data so as to determine if the operational data indicates a fault, storing the operational data in the memory storage device, retrieving the operational data from the memory storage device with a computer that is operatively connected to the electronic control unit, displaying a chosen set of operational data on a display such that the data indicating a fault is distinguished from the data that does not indicate a fault.
Specification