Method and apparatus for linking to a vehicle diagnostic system
First Claim
1. An off-board tool having an executable program for linking the off-board tool to a vehicle diagnostic system, the executable program comprising:
- code for transmitting a first message, having a first ID length from the off-board tool to the vehicle diagnostic system;
code for determining whether an acknowledgment receipt of the first message is received by the off-board tool from the vehicle diagnostic system; and
code for transmitting a second message, having a second ID length, from the off-board tool to the vehicle diagnostic system if the acknowledgement receipt of the first message is not received by the off-board tool.
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Abstract
Exemplary embodiments of the present invention relate generally to an improved off-board tool for communicating with a vehicle diagnostic system using a CAN communications protocol. In one exemplary embodiment, an off-board tool having an executable program for linking the off-board tool to a vehicle diagnostic system is provided. The program includes code for transmitting a first message, having a first length from the off-board tool to the vehicle diagnostic system and code for determining whether an acknowledgment receipt of the first message is received by the off-board tool from the vehicle diagnostic system. The program further includes code for transmitting a second message, having a second length, from the off-board tool to the vehicle diagnostic system if the acknowledgement receipt of the first message is not received by the off-board tool. Another exemplary embodiment provides a method for linking an off-board tool to a vehicle diagnostic system. The method includes transmitting a first message, having a first ID length including a first predetermined number of bits, from the off-board tool to the vehicle diagnostic system and determining whether an acknowledgment receipt of the first message is received by the off-board tool from the vehicle diagnostic system. The method further includes transmitting a second message, having a second ID length including a second predetermined number of bits, from the off-board tool to the vehicle diagnostic system if the acknowledgement receipt of the first message is not received by the off-board tool.
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Citations
23 Claims
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1. An off-board tool having an executable program for linking the off-board tool to a vehicle diagnostic system, the executable program comprising:
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code for transmitting a first message, having a first ID length from the off-board tool to the vehicle diagnostic system;
code for determining whether an acknowledgment receipt of the first message is received by the off-board tool from the vehicle diagnostic system; and
code for transmitting a second message, having a second ID length, from the off-board tool to the vehicle diagnostic system if the acknowledgement receipt of the first message is not received by the off-board tool. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 16)
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10. A method for linking an off-board tool to a vehicle diagnostic system comprising:
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transmitting a first message, having a first ID length including a first predetermined number of bits, from the off-board tool to the vehicle diagnostic system;
determining whether an acknowledgment receipt of the first message is received by the off-board tool from the vehicle diagnostic system; and
transmitting a second message, having a second ID length including a second predetermined number of bits, from the off-board tool to the vehicle diagnostic system if the acknowledgement receipt of the first message is not received by the off-board tool. - View Dependent Claims (11, 12, 13, 14, 15)
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17. An off-board tool for communicating with a vehicle diagnostic system comprising:
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a housing containing;
a processor in circuit communication with;
a memory;
an input; and
a display;
wherein the memory comprises bit set logic for communicating with the vehicle diagnostic system using a first ID bit length and waiting for a response from the vehicle diagnostic system and for communicating with the vehicle diagnostic system using a second ID bit length if there is no acknowledgement receipt to the communication using the first ID bit length. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification