Method and apparatus for fault diagnosis
First Claim
1. A method for performing at least one of fault diagnosis and control information reprogramming in a vehicle control unit having messages stored in a memory area that are transferable to a diagnostic handset that is operable within a range of 100 m around a vehicle, comprising:
- selecting particular messages from a total set of said messages stored in the memory area,transferring the particular messages from the memory area over any of a plurality of different vehicle data buses having a plurality of different message protocols to a data protocol converter,converting the particular messages from one of said message protocols, unknown to the diagnostic handset, into a data format for subsequent transfer to the diagnostic handset via a wireless interface using the data protocol converter,outputting particular data, including any of software for improved vehicle component operation, parameters for improved vehicle component operation, and a vehicle hardware description relating to a configuration of reconfigurable vehicle hardware, with the diagnostic handset,obtaining the fault diagnosis from said diagnostic handset when said fault diagnosis is performed, andtransferring said particular data directly from the diagnostic handset to the data protocol converter via the wireless interface, converting the particular data received from the diagnostic handset into said one of said message protocols permitting transfer of the particular data over any of a plurality of different vehicle data busses, and transferring the particular data to the control unit over one of said plurality of different vehicle data buses when said control information reprogramming is performed.
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Accused Products
Abstract
A data protocol converter has two interfaces, one of which can be connected to a standard vehicle diagnostic interface, and the other permitting wireless message transfer using a diagnostic handset. A data protocol translator converts the messages from the standard vehicle diagnostic interface into messages having a wireless data format, so that they can be received in the diagnostic handset using the latter'"'"'s wireless interface. The data protocol converter has a further interface so that it can be connected to a second standard diagnostic interface according to a different standard. The data protocol translator can convert the messages from the second standard vehicle diagnostic interface into messages having a wireless data format.
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Citations
8 Claims
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1. A method for performing at least one of fault diagnosis and control information reprogramming in a vehicle control unit having messages stored in a memory area that are transferable to a diagnostic handset that is operable within a range of 100 m around a vehicle, comprising:
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selecting particular messages from a total set of said messages stored in the memory area, transferring the particular messages from the memory area over any of a plurality of different vehicle data buses having a plurality of different message protocols to a data protocol converter, converting the particular messages from one of said message protocols, unknown to the diagnostic handset, into a data format for subsequent transfer to the diagnostic handset via a wireless interface using the data protocol converter, outputting particular data, including any of software for improved vehicle component operation, parameters for improved vehicle component operation, and a vehicle hardware description relating to a configuration of reconfigurable vehicle hardware, with the diagnostic handset, obtaining the fault diagnosis from said diagnostic handset when said fault diagnosis is performed, and transferring said particular data directly from the diagnostic handset to the data protocol converter via the wireless interface, converting the particular data received from the diagnostic handset into said one of said message protocols permitting transfer of the particular data over any of a plurality of different vehicle data busses, and transferring the particular data to the control unit over one of said plurality of different vehicle data buses when said control information reprogramming is performed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification