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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | UP-0511872 (2006-08-29) |
| 등록번호 | US-7705602 (2010-05-20) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 62 인용 특허 : 460 |
An automotive vehicle electrical system diagnostic apparatus includes first and second electrical connections configured to electrically couple to an electrical system of an automotive vehicle which includes a battery. Digital samples are obtained during operation of the vehicle which are related to
An automotive vehicle electrical system diagnostic apparatus includes first and second electrical connections configured to electrically couple to an electrical system of an automotive vehicle which includes a battery. Digital samples are obtained during operation of the vehicle which are related to the system. The digital samples are stored in memory.
What is claimed is: 1. An automotive vehicle electrical system diagnostic apparatus for diagnosing operation of an electrical system of the vehicle, comprising: a first electrical terminal configured to electrically couple to the electrical system of the automotive vehicle configured to receive an
What is claimed is: 1. An automotive vehicle electrical system diagnostic apparatus for diagnosing operation of an electrical system of the vehicle, comprising: a first electrical terminal configured to electrically couple to the electrical system of the automotive vehicle configured to receive an electrical system signal; at least one input channel configured to couple to the electrical system of the vehicle, and receive a first electrical signal; digital sample circuitry coupled to the first electrical terminal, the digital sample circuitry configured to provide a plurality of digital samples during operation of the vehicle which are related to the electrical system signal; and a memory configured to store the plurality of digital samples, wherein the digital samples are stored in the memory in response to the first electrical signal. 2. The apparatus of claim 1 including an electrical connection configured to measure a voltage across the battery. 3. The apparatus of claim 2 wherein the electrical connection used to measure voltage across the battery comprises Kelvin connections. 4. The apparatus of claim 1 including a databus connection configured to couple to a databus of the vehicle and wherein the memory is further configured to store data received from the databus. 5. The apparatus of claim 1 including an output configured to provide an output to an operator. 6. The apparatus of claim 1 wherein the stored digital samples are a function of a forcing function applied to the battery. 7. The apparatus of claim 1 including an output configured to output the stored digital samples. 8. The apparatus of claim 1 wherein the digital samples are stored during operation of the vehicle. 9. The apparatus of claim 8 wherein operation of the vehicle is sensed based upon a voltage applied to the battery. 10. The apparatus of claim 8 wherein operation of the vehicle is sensed based upon monitoring of a databus of the vehicle. 11. The apparatus of claim 1 wherein the memory comprises a removable memory. 12. The apparatus of claim 1 wherein the at least one input channel is configured to sense a voltage. 13. The apparatus of claim 1 wherein the at least one input channel is configured to sense a current. 14. The apparatus of claim 1 wherein the digital samples are stored into the memory based upon a trigger from the first electrical signal. 15. The apparatus of claim 1 wherein the memory comprises a rotating buffer. 16. The apparatus of claim 1 wherein circuitry of the diagnostic system is configured to enter a sleep mode. 17. The apparatus of claim 1 including a temperature sensor. 18. The apparatus of claim 1 wherein a time between digital samples is a function of a trigger. 19. The apparatus of claim 1 including a real time clock. 20. The apparatus of claim 1 including a wireless communication circuitry. 21. The apparatus of claim 1 wherein the digital sample circuitry is configured to provide a plurality of digital samples related to the first electrical system signal. 22. The apparatus of claim 21 wherein the memory is configured to store the plurality of digital samples related to the first electrical system signal. 23. The apparatus of claim 1 wherein the storing of digital samples into the memory is based upon a boolean trigger. 24. A method of diagnosing an automotive vehicle electrical system, comprising: electrically coupling the electrical system of the vehicle and receiving an electrical system signal; coupling a first input channel to the vehicle electrical system and receiving a first electrical signal; digitally sampling the electrical system signal; and storing in a memory digital samples of the electrical system signal in response to a trigger received by the first input channel. 25. The method of claim 24 including measuring a voltage across the battery. 26. The method of claim 25 wherein measuring the voltage across the battery is through a Kelvin connection to the battery. 27. The method of claim 24 including connecting to a databus of the vehicle and storing data received from the databus in the memory. 28. The method of claim 24 including providing an output to an operator related to battery condition. 29. The method of claim 24 including applying a forcing function to the battery and wherein the stored digital samples are a function of a forcing function applied to the battery. 30. The method of claim 24 including outputting the stored digital samples. 31. The method of claim 24 including mounting a diagnostic apparatus to the vehicle. 32. The method of claim 24 including storing the digital samples during operation of the vehicle. 33. The method of claim 32 including sensing operation of the vehicle based upon a voltage applied to the battery. 34. The method of claim 33 including sensing operation of the vehicle based upon monitoring of a databus of the vehicle. 35. The method of claim 24 including displaying data logged during operation of a vehicle in a graphical manner. 36. The method of claim 35 wherein the displaying includes identifying a particular signature in the logged data. 37. The method of claim 36 wherein the identification is based upon a particular manufacturer or vehicle model. 38. The method of claim 36 wherein the identification is based upon a trigger. 39. The method of claim 24 including removing a memory from a diagnostic device which contains the digital samples. 40. The method of claim 24 including sensing a voltage with the at least one input channel. 41. The method of claim 24 including sensing a current with the at least one input channel. 42. The method of claim 24 wherein storing the digital samples are stored into the memory is based upon a trigger. 43. The method of claim 24 including entering a sleep mode. 44. The method of claim 24 including sensing a temperature. 45. The method of claim 24 wherein a time between digital samples is a function of a trigger. 46. The method of claim 24 including maintaining a real time clock. 47. A PC computer system configured to analyze data received from an automotive vehicle electrical system diagnostic apparatus in accordance with claim 1.
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