Modular rearview mirror assembly including an electronic control module

• US 6,217,181 B1
• Filed: 01/04/2000
• Issued: 04/17/2001
• Est. Priority Date: 09/30/1994
• Status: Expired due to Fees

• Current Assignee: Donnelly Corporation (Magna International Incorporated)
• Original Assignee: Donnelly Corporation (Magna International Incorporated)
• Inventors: Lynam, Niall R., Veldman, Roger L., OʼFarrell, Desmond J.
• Primary Examiner(s): NGUYEN, THONG Q
• Application Number:
  US09/477,539
• Time in Patent Office: 469 Days
• Field of Search: 359/601-614, 359/871-872, 359/875, 359/877, 359/879-882, 340/825.22, 340/825.31, 340/825.54, 340/825.69, 340/525
• US Class Current: 359/879
• CPC Class Codes: B60R 1/0602 comprising means for cleaning or deicing
• CPC Class Codes: B60R 1/072 for adjusting the mirror relative to its housing
• CPC Class Codes: B60R 1/088 using a cell of electrically changeable optical characteristic, e.g. liquid-crystal or electrochromic mirrors
• CPC Class Codes: B60R 1/12 Mirror assemblies combined with other articles, e.g. clocks
• CPC Class Codes: B60R 1/1207 with lamps; with turn indicators
• CPC Class Codes: B60R 11/0241 for telephones
• CPC Class Codes: B60R 2001/1223 with sensors or transducers
• CPC Class Codes: B60R 2001/1261 with antennae
• CPC Class Codes: B60R 2001/1284 with communication systems other than radio-receivers, e.g. keyless entry systems, navigation systems; with anti-collision systems

Abstract

A modular rearview mirror assembly for vehicles incorporates a housing into the mirror assembly case for supporting an electronic control module to reduce the vibration, to ease the installation of the components in the mirror assembly, and to improve access to the various components in the mirror assembly for maintenance or repair. The rearview mirror assembly includes a reflective element, at least one electrical component mounted to the reflective element, and a case housing the reflective element and the electrical component. An electronic control module including at least one antenna is supported by the case which communicates with the electrical component. Preferably, the electronic control module is supported by a housing that is either molded with the case or welded to the inner surface of the case to support the electronic control module independently from the electrical component.

Claims

1. A vehicular rearview mirror assembly comprising:

a case having a wall;

a reflective element housed in said case;

an actuator supporting said reflective element in said case, said actuator permitting adjustment of an orientation of said reflective element in said case, said actuator and said reflective element defining an actuator supported reflective element assembly; and

an electronic control module supported by a wall of said case, said electronic control module having an inherent weight and including an antenna for at least one of transmitting electromagnetic signals outside of the vehicle and receiving electromagnetic signals originating outside of the vehicle, said inherent weight of said electronic module being distributed to said wall of said case and not to said actuator supported reflective element assembly to thereby reduce vibration of said reflective element.

2. A vehicle rearview mirror assembly according to claim 1, further comprising a housing mounted to said case, said electronic control module being supported in said housing.

3. A vehicular rearview mirror assembly according to claim 2, wherein said housing comprises a modular insert mounted in said wall of said case.

4. A vehicular rearview mirror assembly according to claim 3, wherein said wall of said case includes an opening receiving said modular insert.

5. A vehicular rearview mirror assembly according to claim 4, wherein said case includes an exterior surface and said modular insert includes an exterior surface aligned flush with said exterior surface of said case.

6. A vehicular rearview mirror assembly according to claim 5, wherein said housing includes at least one opening through which said electronic control module communicates with at least one electrical component supported by said reflective mirror element, said electronic control module including at least one lead extending through said opening in said housing for connecting to an external power supply.

7. A vehicular rearview mirror assembly according to claim 2, further comprising an electrical component supported by said reflective mirror element wherein said electronic control module includes at least one electronic device for communicating with said electrical component.

8. A vehicular rearview mirror assembly according to claim 7, wherein said antenna is selected from the group of a Global Positioning System antenna, a cellular phone antenna, and a garage door opener antenna.

9. A vehicular rearview mirror assembly according to claim 7, wherein said module includes a GPS receiver.

10. A vehicular rearview mirror assembly according to claim 9, wherein said antenna comprises a Global Positioning System antenna.

11. A vehicular rearview mirror assembly according to claim 1, further comprising an electrical component housed in said case, said electrical component selected from the group of a heater pad, an ultrasonic transducer for removing raindrops, a light sensor, an electro-optic mirror element, a blind spot detection system, a compass system, an intrusion detection system, a vehicle security light, a turn signal indicator, a keyless entry system, and a trainable garage door opener system.

12. A vehicular rearview mirror assembly according to claim 1, wherein said case includes a removable back can member, said electronic control module supported by said back can member.

13. A vehicular rearview mirror assembly according to claim 12, wherein said case includes a wall, said back can member adapted to cover said wall and removably secure to said wall, said wall including an opening through which said electronic control module electrically interconnects with an electrical component positioned in said case.

14. A vehicular exterior rearview mirror assembly comprising:

a reflective element;

a mirror case having a case wall, said case wall defining a cavity;

an actuator supporting said reflective element in said mirror case, said actuator adjusting an orientation of said reflective element in said mirror case, said actuator and said reflective element defining an actuator supported reflective element assembly; and

an electronic module including at least one antenna for transmitting electronic magnetic signals and having an inherent weight and being supported in said cavity independent and spaced from said actuator supported reflective element assembly, said weight of said electronic module being distributed to said case wall and not to said actuator supported reflective assembly to thereby reduce vibration of said reflective element.

15. A vehicular exterior rearview mirror assembly according to claim 14, wherein said antenna comprises an antenna selected from the group of a Global Positioning System antenna, a cellular phone antenna, and a garage door opener.

16. A vehicular exterior rearview mirror assembly according to claim 15, wherein said reflective element comprises a variable reflectance device.

17. A vehicular exterior rearview mirror assembly according to claim 16, wherein said variable reflectance device includes an electro-optic cell defining an electrical component, and said electronic module produces a drive signal for establishing a partial reflectance level in said reflective element.

18. A vehicular exterior rearview mirror assembly according to claim 17, wherein said electrical component includes at least one light sensor fixed to a rear surface of said variable reflectance device for providing an input to said electronic control module such that said electronic control module produces said drive signal as a function of light sensed by said at least one light sensor.

19. A vehicular exterior rearview mirror assembly according to claim 14, wherein said module includes a Global Positioning System receiver.

20. The vehicular exterior rearview mirror assembly according to claim 14, further comprising an electronic module housing, said electronic module housing supporting said electronic module and being mounted to said case wall.

21. The vehicular exterior rearview mirror assembly according to claim 14, further comprising an actuator support member, said actuator support member supporting said actuator support in said cavity, and said electronic module being spaced from and independent from said actuator support member.

22. The vehicular exterior rearview mirror assembly according to claim 14, wherein said electronic module is supported by said case wall.

23. The vehicular exterior rearview mirror assembly according to claim 22, wherein said case wall includes an opening, said electronic module being supported in said opening.

24. The vehicular exterior rearview mirror assembly according to claim 23, further comprising electronic module housing, said electronic module housing supporting said electronic module in said opening.

25. The vehicular exterior rearview mirror assembly according to claim 14, further comprising a back can member, said back can member forming at least a portion of said case wall.

26. The vehicular exterior rearview mirror assembly according to claim 25, wherein said electronic module supported by said back can member.

27. The vehicular exterior rearview mirror assembly according to claim 14, wherein said electronic module comprises an electronic control module.

28. The vehicular exterior rearview mirror assembly according to claim 14, further comprising a carrier member, said electronic module being supported on said carrier member.

29. The vehicular exterior rearview mirror assembly according to claim 28, wherein said carrier member is mounted to said case wall.

30. The vehicular exterior rearview mirror assembly according to claim 28, further comprising a back can member, said back can member forming at least a portion of said case wall, said carrier being mounted to said back can member.