Diagnostic System and Diagnostic Test with a WLAN Transmission Module
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Abstract
The invention relates to a motor vehicle diagnostic system for acquiring and storing diagnostic data and transmitting them from control units in a motor vehicle to a computer outside the motor vehicle. The system is composed of components which are located inside the vehicle and of components which are located outside the vehicle. Using a transmission module, in which a short diagnostic test is implemented, diagnostic data from onboard components are interrogated and are transmitted via a WLAN link to the computer system of a service company. The diagnostic data of the onboard components can be further processed using the computer system. The disclosed invention is aimed in particular at assisting a service employee in the vehicle reception of a service workshop.
25 Citations
19 Claims
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1-8. -8. (canceled)
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9. A motor vehicle diagonistic system comprising:
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onboard components; and offboard components;
wherein,the onboard components are connected to one another via communication links; and the offboard components have a communication link to one another; one of the offboard components is a transmission module which is connectable to a diagnostic interface of a motor vehicle onboard power system; a short diagnostic test program, which reads out diagnostic data from the onboard components and combines them to form a short diagnostic test result, is implemented in the transmission module; and the short diagnostic test result is read into at least one of the offboard components and is further processed by an offboard diagnostic program. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A diagnostic system for a vehicle that has a plurality of onboard control units which are coupled in data communication with each other and with an externally accessible diagnostic interface, each of said control units having a self diagnostic routine that can detect predefined faults and classify them according to fault codes, said diagnostic system comprising:
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an offboard transmission module which is externally connectable with said diagnostic interface; a short diagnostic test program that is stored in said transmission module, and is operable by said transmission module to read out diagnostic test data from said control units via said diagnostic interface, and to combine said diagnostic test data to form a short diagnostic test result; and at least one offboard data processing component which reads said short diagnostic test result from said transmission module, and uses it to perform further diagnostic processing. - View Dependent Claims (18, 19)
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Specification