FLASH MEMORY SIGNATURE CAL

• US 20120116638A1
• Filed: 11/05/2010
• Published: 05/10/2012
• Est. Priority Date: 05/13/2008
• Status: Active Grant

• Current Assignee: BorgWarner Incorporated
• Original Assignee: BorgWarner Incorporated
• Inventors: Leising, Brian E., True, Ryan M., Wood, Phillip
• Granted Patent: US 9,279,461 B2
• Time in Patent Office: Days
• US Class Current: 701/67
• CPC Class Codes: B60W 10/02 including control of driveline clutches
• CPC Class Codes: B60W 10/10 including control of change-speed gearings
• CPC Class Codes: B60W 2710/027 Clutch torque
• CPC Class Codes: F16D 2300/18 Sensors; Details or arrangements thereof
• CPC Class Codes: F16D 2300/26 Cover or bell housings; Details or arrangements thereof
• CPC Class Codes: F16D 2500/50248 During assembly
• CPC Class Codes: F16D 2500/5116 Manufacture, testing, calibrating, i.e. test or calibration of components during or soon after assembly, e.g. at the end of the production line F16D2500/50248 takes precedence
• CPC Class Codes: F16D 2500/702 Look-up tables
• CPC Class Codes: F16D 2500/70223 Current
• CPC Class Codes: F16D 27/004 with permanent magnets combined with electromagnets
• CPC Class Codes: F16D 27/115 with more than two discs, e.g. multiple lamellae
• CPC Class Codes: F16D 27/14 Details
• CPC Class Codes: F16D 48/064 Control of electrically or electromagnetically actuated clutches F16D48/062, F16D48/068 take precedence
• CPC Class Codes: G01M 13/02 Gearings; Transmission mechanisms

Abstract

One embodiment includes a coupling device system for use in a motor vehicle is provided including a coupling device and a memory chip. The coupling device has an input member, an output member, and at least one modulating clutch assembly selectively coupling the input member to the output member. The modulating clutch assembly includes an electrical clutch operator and clutch plates. The clutch plates include at least one first clutch plate coupled to the input member and at least one second clutch plate coupled to the output member. The second clutch plate is disposed adjacent the first clutch plate. The memory chip is integrated with the coupling device and is configured to store data related to a measured characteristic of the coupling device. The memory chip is also configured to communicate with a vehicle controller. A method of providing a calibration curve of the coupling device to the vehicle controller is also disclosed.

Claims

1. A coupling device system for use in a motor vehicle, the coupling device system comprising:

a coupling device comprising;

an input member and at least one output member;

at least one modulating clutch assembly selectively coupling the input member to the at least one output member, the modulating clutch assembly including an electrical clutch operator and a plurality of clutch plates, the plurality of clutch plates having at least one first clutch plate coupled to the input member, and at least one second clutch plate coupled to the at least one output member and disposed adjacent to the at least one first clutch plate; and

a memory chip integrated with the coupling device and configured to store data related to at least one measured characteristic of the coupling device, the memory chip being configured to communicate with a vehicle controller.

2. The coupling device system of claim 1, wherein the data includes a curve associated with the coupling device, the curve being a function of torque versus current.

3. The coupling device system of claim 2, wherein the memory chip is configured to provide data to the vehicle controller.

4. The coupling device system of claim 3, wherein the memory chip is configured to provide data to the vehicle controller periodically, according to predetermined time intervals.

5. The coupling device system of claim 4, wherein the memory chip is configured to provide data to the vehicle controller when prompted by the vehicle controller.

6. The coupling device system of claim 1, wherein the memory chip is attached to the coupling device.

7. The coupling device system of claim 6, wherein the memory chip is mounted to the coupling device.

8. The coupling device system of claim 1, further comprising a coil connector attached to the electrical clutch operator, the memory chip being attached to the coil connector.

9. The coupling device system of claim 1, wherein the memory chip is removably attached to the coupling device.

10. The coupling device system of claim 1, wherein the electrical clutch operator comprises a solenoid coil.

11. The coupling device system of claim 10, where in the at least one first clutch plate is a plurality of first clutch plates and the at least one second clutch plate is a plurality of second clutch plates, the first and second pluralities of clutch plates being interleaved.

12. The coupling device system of claim 11, wherein the coupling device further comprises:

a pilot clutch pack having a first plurality of pilot clutch plates coupled to the input member and a second plurality of pilot clutch plates coupled to a clutch hub, the second plurality of pilot clutch plates being interleaved with the first plurality of pilot clutch plates; and

a pressure plate adjacent to the pilot clutch pack,

wherein energization of the solenoid coil translates a solenoid plunger, causing the pressure plate to compress the pilot clutch pack.

13. The coupling device system of claim 12, wherein compression of the pilot clutch pack engages a ball ramp operator to compress the clutch plates of a main clutch pack of the modulating clutch assembly.

14. A method of providing a calibration curve of a coupling device having an electrical clutch operator including a solenoid assembly to a vehicle controller, the method comprising:

measuring at least one characteristic of the coupling device, resulting in characteristic data;

writing the characteristic data to a memory chip, the memory chip being in communication with a vehicle controller and integrated with the coupling device; and

communicating the characteristic data from the memory chip to the vehicle controller.

15. The method of claim 14, wherein the step of measuring at least one characteristic of the coupling device comprises measuring a plurality of characteristics of the coupling device.

16. The method of claim 14, further comprising installing the coupling device, the memory chip, and the vehicle controller into a motor vehicle.

17. The method of claim 14, wherein the characteristic data includes values of torque output of the coupling device and values of current being drawn by the solenoid coil, each value of torque output corresponding to a value of current, resulting in a calibration curve.

18. The method of claim 17, wherein the coupling device includes an input member, at least one output member, and at least one modulating clutch assembly selectively coupling the input member to the at least one output member, the modulating clutch assembly including the electrical clutch operator and a plurality of clutch plates having a first plurality of clutch plates coupled to the input member, and a second plurality of clutch plates coupled to the at least one output member and interleaved with the first plurality of clutch plates.

19. The method of claim 18, wherein the coupling device is part of an all-wheel-drive coupling system.