Automatically identifying Volvo communication protocols method and apparatus
First Claim
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1. A diagnostic tool for identifying a vehicle'"'"'s protocol, comprising:
- a processor that operates a software that can automatically identify the vehicle'"'"'s protocol used by an electronic control unit of a diagnostic system in a vehicle under test and the software used by the electronic control unit;
a memory that stores the software used by the processor;
a connector interface that connects the tool to a data link connector in the vehicle;
a signal translator that allows the tool to communicate with the vehicle in at least one communication protocol;
an input device for inputting information into the tool;
a display that displays information to the user; and
a housing surrounding the processor, the memory, the connector interface, the signal translator, the input device and the display.
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Abstract
A diagnostic tool and method are provided that can determine the communication protocol being used by diagnostic systems in a vehicle. The tool can automatically communicate with onboard computer of the diagnostic system in a first communication protocol and if unsuccessful, then can communicate with the diagnostic system in a second communication protocol. The tool can also determine the Baud rate of the communication protocol being used by the onboard computer.
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Citations
24 Claims
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1. A diagnostic tool for identifying a vehicle'"'"'s protocol, comprising:
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a processor that operates a software that can automatically identify the vehicle'"'"'s protocol used by an electronic control unit of a diagnostic system in a vehicle under test and the software used by the electronic control unit; a memory that stores the software used by the processor; a connector interface that connects the tool to a data link connector in the vehicle; a signal translator that allows the tool to communicate with the vehicle in at least one communication protocol; an input device for inputting information into the tool; a display that displays information to the user; and a housing surrounding the processor, the memory, the connector interface, the signal translator, the input device and the display. - View Dependent Claims (2, 3)
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4. A method for identifying a vehicle'"'"'s protocol, comprising:
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coupling a diagnostic tool to the vehicle; selecting at least one diagnostic system in the vehicle to query via a menu presented by the diagnostic tool; automatically communicating with an electronic control unit with the diagnostic tool using a first communication protocol; automatically communicating with a second communication protocol with the diagnostic tool when communicating with the first communication protocol is unsuccessful; determining the electronic control unit'"'"'s communication protocol; and identifying the electronic control unit and the electronic control unit'"'"'s software from a database. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An article comprising a machine-accessible medium having associated data, wherein the data, when accessed, results in a machine performing:
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providing at least one diagnostic system in a vehicle to query via a menu presented by a diagnostic tool; automatically communicating with a vehicle onboard computer with the diagnostic tool using a first communication protocol after receiving the selection of the diagnostic system; automatically communicating with a second communication protocol with the diagnostic tool when communicating with the first communication protocol is unsuccessful; determining the vehicle onboard computer'"'"'s communication protocol; and identifying the vehicle onboard computer and the vehicle onboard computer'"'"'s software from a database. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for identifying a vehicle'"'"'s protocol, comprising:
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coupling a diagnostic tool to the vehicle; selecting at least one diagnostic system in the vehicle to query via a menu presented by the diagnostic tool; automatically communicating with an electronic control unit with the diagnostic tool using ISO 9141; automatically communicating with controller area network with the diagnostic tool when communicating with ISO 9141 is unsuccessful; determining the electronic control unit'"'"'s communication protocol; and identifying the electronic control unit and the electronic control unit'"'"'s software from a database.
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Specification