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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0098661 (2011-05-02) |
| 등록번호 | US-9255955 (2016-02-09) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 1 인용 특허 : 626 |
A vehicle electrical system tester for testing the electrical system of a vehicle is provided. The electrical system has a wiring harness which extends between components of the vehicle and includes a plurality of wires. The vehicle electrical system tester is configured to measure an electrical par
A vehicle electrical system tester for testing the electrical system of a vehicle is provided. The electrical system has a wiring harness which extends between components of the vehicle and includes a plurality of wires. The vehicle electrical system tester is configured to measure an electrical parameter of at least one of the plurality of wires through a first connection to coupled to a first end of the at least one of the plurality of wires and a second connection coupled to a second end of the at least one of the plurality of wires. An electrical signal is applied between the first and second ends of the at least one of the plurality of wires and the electrical parameter of the at least one of the plurality of wires is responsively measured.
1. A vehicle electrical system tester for testing the electrical system of a vehicle, the electrical system having a wiring harness which extends between electrical components of the vehicle, the wiring harness including a plurality of wires, the vehicle electrical system tester configured to measur
1. A vehicle electrical system tester for testing the electrical system of a vehicle, the electrical system having a wiring harness which extends between electrical components of the vehicle, the wiring harness including a plurality of wires, the vehicle electrical system tester configured to measure an electrical parameter of at least one of the plurality of wires and comprising: a first Kelvin connection having a current connection and a sense connection, the first Kelvin connection configured to couple to a first end of the at least one of the plurality of wires of the wiring harness;a second Kelvin connection having a current connection and a sense connection, the second Kelvin connection configured to couple to a second end of the at least one of the plurality of wires of the wiring harness; andtest circuitry coupled to the first Kelvin connection and the second Kelvin connection, the test circuitry applying an electrical signal between the first and second ends of the at least one of the plurality of wires through the current connection of the first Kelvin connection and the current connection of the second Kelvin connection, responsively measuring the electrical parameter of the at least one of the plurality of wires of the wiring harness using the sense connection of the first Kelvin connection and the sense connection of the second Kelvin connection and provides an output to a user related to a load carrying ability of the at least one of the plurality of wires which is determined based upon the measured parameter. 2. The vehicle electrical system tester of claim 1 wherein the measured parameter is based upon a measurement made through a connection to a battery of the vehicle. 3. The vehicle electrical system tester of claim 1 including an electrical connection to a battery of the vehicle and wherein circuitry of the vehicle system electrical tester is powered with power from the battery. 4. The vehicle electrical system tester of claim 1 wherein the test circuitry is further configured to provide an output to an operator, the output to the operator assisting the operator in identifying the second end of the at least one of the plurality of wires of the wiring harness. 5. The vehicle electrical system tester of claim 4 wherein the output comprises a tone. 6. The vehicle electrical system tester of claim 5 wherein the test circuitry applies a tone signal to the first end of the wire and the tone signal is received by the second Kelvin connection. 7. The vehicle electrical system tester of claim 1 including an input coupled to the microprocessor configured to receive information from an operator related to at least one of the components of the vehicle coupled to the first end of the at least one of the plurality of wires of the wiring harness. 8. The vehicle electrical system tester of claim 7 including a user output displaying a plurality of vehicle components and wherein the operator selects a vehicle component coupled to one end of the at least one of the plurality of wires of the wiring harness from the plurality of components through a user input. 9. The vehicle electrical system tester of claim 1 wherein the signal comprises a DC signal. 10. The vehicle electrical system tester of claim 1 wherein the signal comprises a AC signal. 11. The vehicle electrical system tester of claim 1 wherein the parameter relates to the ability of the at least one of the plurality of wires to carry digital data. 12. The vehicle electrical system tester of claim 1 including a user output and wherein the test circuitry prompts an operator to disconnect at least one end of the plurality of wires from the vehicle electrical system through a user output. 13. The vehicle electrical system tester of claim 1 wherein the second Kelvin connection comprises a piercing probe configured to pierce insulation of the at least one of the plurality of wires. 14. The vehicle electrical system tester of claim 1 including a user input coupled to the test circuitry. 15. The vehicle electrical system tester of claim 14 when the user input is configured to receive information related to a gauge of the at least one of the plurality of wires. 16. The vehicle electrical system tester of claim 1 wherein the test circuitry provides an output in the form of “voltage drop at XX amps”. 17. The vehicle electrical system tester of claim 1 wherein the test circuitry provides an output related to electrical parameter of the at least one of the plurality of wires and a scaling factor. 18. The vehicle electrical system tester of claim 1 wherein the electrical parameter of the at least one of the plurality of wires comprises a dynamic parameter. 19. A method of testing wiring of an electrical system of a vehicle, the wiring including a wiring harness which extends between electrical components of the vehicle, the wiring harness including a plurality of wires, the method comprising: coupling test circuitry to one end of at least one of the plurality of wires in the wiring harness using a first Kelvin connection, the first Kelvin connection comprising a current connection and a sense connection;coupling the test circuitry to a second end of the at least one of the plurality of wires of the wiring harness using a second Kelvin connection, the second Kelvin connection comprising a current connection and a sense connection; applying a signal with the test circuitry between the first and second ends of the at least one of the plurality of wires of the wiring harness through the current connection of the first Kelvin connection and the current connection of the second Kelvin connection;measuring a parameter of the at least one of the plurality of wires of the wiring harness with the test circuitry using the sense connection of the first Kelvin connection and the sense connection of the second Kelvin connection; andprovides an output to a user related to a load carrying ability of the at least one of the plurality of wires which is determined based upon the measured parameter. 20. The method of claim 19 including connecting to a battery of the vehicle and wherein the measured parameter is based upon a measurement made through a connection to the battery. 21. The method of claim 19 including providing an output to an operator, the output to the operator assisting the operator in identifying the second end of the at least one of the plurality of wires. 22. The method of claim 19 wherein the output comprises a tone. 23. The method of claim 20 including applying a tone signal to the first end of the at least one of the plurality of wires and receiving the tone signal with a probe proximate the second end of the at least one of the plurality of wires. 24. The method of claim 19 including receiving an input from an operator related to at least one of the components of the vehicle coupled to the first end of the at least one of the plurality of wires of the wiring harness. 25. The method of claim 24 including displaying a plurality of vehicle components on a display and wherein the operator selects a vehicle component coupled to one end of the at least one of the plurality of wires from the plurality of components. 26. The vehicle electrical system tester of claim 1 wherein the test performed on the at least one of the plurality of wires comprises a AC or a DC load capacity test. 27. The vehicle electrical system tester of claim 1 wherein the test performed on the at least one of the plurality of wires comprises detecting an electrical short circuit. 28. The vehicle electrical system tester of claim 1 wherein the test performed on the at least one of the plurality of wires comprises detecting leakage. 29. The vehicle electrical system tester of claim 1 wherein the microprocessor identifies the at least one of the plurality of wires based upon a voltage level bias applied to the first Kelvin connection. 30. The vehicle electrical system tester of claim 29 wherein the microprocessor identifies a power lead or a ground lead based upon the voltage level bias. 31. The vehicle electrical system tester of claim 1, wherein the first Kelvin connection is coupled to a battery and the second Kelvin connection is coupled to a load of the vehicle. 32. The vehicle electrical system tester of claim 1, further comprising a third Kelvin connection and a fourth Kelvin connection, wherein the third Kelvin connection is coupled to a battery and the fourth Kelvin connection is coupled to a load of the vehicle.
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