Method and apparatus for measuring a parameter of a vehicle electrical system
First Claim
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; and
test 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.
1 Assignment
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Accused Products
Abstract
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.
834 Citations
32 Claims
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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:
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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; and test 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 26, 27, 28, 29, 30, 31, 32)
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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:
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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; 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. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification