Alternator and starter tester apparatus and method

• US 7,212,911 B2
• Filed: 10/28/2005
• Issued: 05/01/2007
• Est. Priority Date: 10/29/2004
• Status: Active Grant

• Current Assignee: SPX Corporation
• Original Assignee: SPX Corporation
• Inventors: Raichle, Kurt, Miller, Garret, Krampitz, Scott, Xia, Weixing, Harrigan, Andrew
• Primary Examiner(s): Vo; Hieu T.
• Application Number:
  US11/260,184
• Publication Number:
  US 20060136119A1
• Time in Patent Office: 550 Days
• Field of Search: 701/114, 701/115, 701/102, 701/29, 701/33, 731/173, 731/16, 731/181, 731/182, 123/179.15, 324/120, 324/380, 324/426
• US Class Current: 701/114
• CPC Class Codes: F02N 11/10 Safety devices F02N11/08 takes precedence
• CPC Class Codes: G01R 31/007 using microprocessors or computers
• CPC Class Codes: G01R 31/343 in operation

Abstract

An alternator and starter tester system is provided that includes a protective hood or cover, a controller connecting an LCD touch-screen, an alternator main harness connector, a starter harness self-test connector, a barcode connector, USB host and USB function connectors, an Ethernet connector, and a compact flash connector. A multiplexer is also provided to reduce the number of connectors required for various alternators that have the same type of connections but have signals on different pins.

Claims

1. An alternator and starter tester with a multiplexer, comprising:

a memory for storing a software that controls the multiplexer;

a processor that communicates with the software and controls the multiplexer;

an alternator cable that communicates with a signal on a pin of a connector having multiple pins, the signal is communicated between the alternator and the processor; and

a relay cable for communicating with at least one switch in a set of switches of the multiplexer, wherein the multiplexer allows for the signal to be received from any desired pin on the connector.

2. The tester of claim 1, wherein the software instructs the switch to connect an appropriate gate in order to communicate with the desired pin.

3. The tester of claim 1, wherein the set of switches can receive the signal, the signal can be an ignition signal, a stator signal, a sense signal, a lamp signal, a field driver signal or any other signal.

4. The tester of claim 1, wherein the multiplexer allows for signal to be received from any desired pin on the connector by connecting or disconnecting the gates on the switch.

5. The tester of claim 1, wherein the connector has at least four pins.

6. The tester of claim 1, wherein the software controls the multiplexer to communicate with the appropriate pin on the connector based on an input of the operator.

7. The tester of claim 1, wherein the multiplexer has at least two switches in the set of switches.

8. An alternator and starter tester system with a multiplexer, comprising:

a memory means for storing a software that controls the multiplexer;

a processor means for communicating with the software and controlling the multiplexer;

an alternator cable means for communicating with a signal on a pin of a connector having multiple pins, the signal is communicated between the alternator and the processor means; and

a relay cable means for communicating with at least one switch in a set of switches of the multiplexer, wherein the multiplexer allows for the signal to be received from any desired pin on the connector.

9. The tester system of claim 8, wherein the software instructs the switch to connect an appropriate gate in order to communicate with the desired pin.

10. The tester system of claim 8, wherein the set of switches can receive the signal, the signal can be an ignition signal, a stator signal, a sense signal, a lamp signal, a field driver signal or any other signal.

11. The tester system of claim 8, wherein the multiplexer allows for signal to be received from any desired pin on the connector by connecting or disconnecting the gates on the switch.

12. The tester system of claim 8, wherein the connector has at least four pins.

13. The tester system of claim 8, wherein the software controls the multiplexer to communicate with the appropriate pin on the connector based on an input of the operator.

14. The tester system of claim 8, wherein the multiplexer has at least two switches in the set of switches.

15. The tester system of claim 8, wherein the memory can be compact flash, flash memory or accessed remotely.

16. A method of multiplexing in an alternator and starter tester, comprising:

inputting information about a component to be tested;

identifying the signal to be received from a pin of a connector that is connected to the component to be tested based on the information; and

controlling at least one gate of a switch of a multiplexer so that the tester can receive a signal from the appropriate pin in the connector, wherein the connector has at least two pins.

17. The multiplexing method of claim 16, wherein the controlling the at least one gate includes connecting or disconnect the at least one gate.

18. The multiplexing method of claim 16, wherein a software in the tester controls the multiplexer so that the signal from the appropriate pin is received by the tester.

19. The multiplexing method of claim 16, wherein the component is the alternator or the starter motor.

20. The multiplexing method of claim 16, wherein identifying the signal from the pin is based on the inputted information.