Current check module for hand-held vehicle tester

• US 5,899,947 A
• Filed: 06/30/1997
• Issued: 05/04/1999
• Est. Priority Date: 06/30/1997
• Status: Expired due to Term

• Current Assignee: FCA US LLC (Stellantis NV)
• Original Assignee: Daimler Chrysler Corporation (Mercedes-Benz Group AG)
• Inventors: Hall, Michael, Currier, Ray E.
• Primary Examiner(s): Teska, Kevin J.
• Assistant Examiner(s): FREJD, RUSSELL WARREN
• Application Number:
  US08/885,974
• Time in Patent Office: 673 Days
• Field of Search: 701/32, 701/33, 701/35, 701/99, 701/29, 701/30, 701/31, 701/34, 73/117.2, 73/117.3, 73/116, 73/1.44, 364/512, 307/9.1, 307/10.1, 324/503, 324/508, 324/511, 340/870.01-870.16, 340/904, 340/664, 340/52 F, 702/57, 702/64, 152/152.1
• US Class Current: 701/33
• CPC Class Codes: G01R 31/31914 Portable Testers

Abstract

A system for testing the electrical components of vehicles during manufacturing includes a hand held tester to which a translator unit can be detachably engaged and with which the tester is in RF communication. The translator unit can be detached from the tester and plugged into a test receptacle under a vehicle'"'"'s dashboard to communicate with the vehicle by translating computer formatted data from the tester to vehicle bus-formatted data, and vice-versa. Then, the vehicle'"'"'s VIN is scanned into the tester or manually input into the tester, and the tester transmits the VIN via an RF link in the assembly plant to a computer in the plant. Based on the VIN, the computer determines the electric equipment that the vehicle has, and the computer transmits this information back to the tester. The tester then determines which tests to execute, and the tester causes the translator unit to undertake these tests. The translator transmits the test results back to the tester which in turn transmits the results to the computer. A portable current module can be provided that monitors the current drawn from the vehicle'"'"'s battery during the testing and for communicating this data to the tester via RF link.

Claims

1. A current monitor for monitoring electric current in a vehicle during quality assurance testing of an electrical system of the vehicle, comprising:

a housing;

a current sensor in the housing;

a transceiver in the housing for transmitting signals to an electrical tester; and

an antenna on the housing and connected to the transceiver for communicating with the electrical tester via radio frequency.

2. The monitor of claim 1, further comprising:

a positive lead; and

a negative lead, both leads being electrically connected to the current sensor.

3. The monitor of claim 2, further comprising:

a positive clip attached to the positive lead and configured for engaging a positive terminal of a vehicle battery; and

a negative clip attached to the negative lead and configured for engaging a negative terminal of a vehicle battery.

4. The monitor of claim 3, wherein the signals are representative of the electrical current being drawn from a battery, when the clips are engaged with the battery.

5. The monitor of claim 4, in communication with the tester and engageable with a battery of a vehicle to be tested, the current monitor generating a signal representative of the current drawn from the battery during testing.

6. In an electrical system quality assurance system for testing vehicle electrical systems during vehicle assembly, a current monitor for monitoring electric current from a battery of a vehicle during testing of the vehicle'"'"'s electrical system, comprising:

a current sensor;

a positive lead;

a negative lead, both leads being electrically connected to the current sensor;

a transceiver connected to the current sensor for transmitting signals to an electrical tester; and

an antenna connected to the transceiver for communicating with the electrical tester via radio frequency.

7. The monitor of claim 6, further comprising:

a housing for holding the transceiver, antenna, and current sensor.

8. The monitor of claim 7, further comprising:

a positive clip attached to the positive lead and configured for engaging a positive terminal of a vehicle battery; and

a negative clip attached to the negative lead and configured for engaging a negative terminal of a vehicle battery.

9. The monitor of claim 8, wherein the current sensor generates a signal representative of the electrical current being drawn from a battery, when the clips are engaged with the battery.

10. A current monitor for monitoring the current drawn from a vehicle battery during testing of the electrical system of the vehicle, comprising:

a housing;

a current sensor in the housing, the current sensor being couplable to the battery;

a transceiver in the housing for transmitting signals to an electrical tester; and

an antenna on the housing and connected to the transceiver for communicating with the electrical tester via radio frequency.

11. The monitor of claim 10, further comprising:

a positive lead; and

a negative lead, both leads being electrically connected to the current sensor.

12. The monitor of claim 11, further comprising:

a positive clip attached to the positive lead and configured for engaging a positive terminal of a vehicle battery; and

a negative clip attached to the negative lead and configured for engaging a negative terminal of a vehicle battery to thereby couple the sensor to the battery.

13. The monitor of claim 12, wherein the signals are representative of the electrical current being drawn from a battery, when the clips are engaged with the battery.

14. The monitor of claim 13, in communication with the tester and engageable with a battery of a vehicle to be tested, the current monitor generating a signal representative of the current drawn from the battery during testing.