IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0091864
(2002-03-06)
|
발명자
/ 주소 |
- Fleytman, Yakov
- Beyer, Charles E.
- Francis, Philip J.
|
출원인 / 주소 |
|
대리인 / 주소 |
Harness, Dickey & Pierce P.L.C.
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
30 |
초록
▼
A four-wheel drive transmission is provided which combines a continuously variable transmission unit and a transfer case into a common assembly. The four-wheel drive transmission includes a continuously variable transmission unit, a continuously variable range unit and a torque transfer unit. Variab
A four-wheel drive transmission is provided which combines a continuously variable transmission unit and a transfer case into a common assembly. The four-wheel drive transmission includes a continuously variable transmission unit, a continuously variable range unit and a torque transfer unit. Variable speed control of a first worm/worm gear transmission drives a component of an epicyclic gearset associated with the continuously variable transmission unit to provide continuous ratio control between an input shaft and an intermediate shaft. Likewise, variable speed control of a second worm/worm gear transmission drives a component of a differential associated with the continuously variable range unit to provide continuous ratio control between the intermediate shaft and a first output shaft. Finally, the torque transfer unit controls the selective/automatic transfer of drive torque from one of the intermediate shaft and the first output shaft to a second output shaft to provide front-wheel drive.
대표청구항
▼
A four-wheel drive transmission is provided which combines a continuously variable transmission unit and a transfer case into a common assembly. The four-wheel drive transmission includes a continuously variable transmission unit, a continuously variable range unit and a torque transfer unit. Variab
A four-wheel drive transmission is provided which combines a continuously variable transmission unit and a transfer case into a common assembly. The four-wheel drive transmission includes a continuously variable transmission unit, a continuously variable range unit and a torque transfer unit. Variable speed control of a first worm/worm gear transmission drives a component of an epicyclic gearset associated with the continuously variable transmission unit to provide continuous ratio control between an input shaft and an intermediate shaft. Likewise, variable speed control of a second worm/worm gear transmission drives a component of a differential associated with the continuously variable range unit to provide continuous ratio control between the intermediate shaft and a first output shaft. Finally, the torque transfer unit controls the selective/automatic transfer of drive torque from one of the intermediate shaft and the first output shaft to a second output shaft to provide front-wheel drive. ning said second major side of said module is provided by a panel cover, and said second opposing pair of directing surfaces is provided by an outer frame, said outer frame having an opening above said I/O connector for insertion of said module and otherwise having a shape conformed to fit said PCB, said I/O connector, and said panel cover. 11. The assembly of claim 1, wherein said expansion module of a second type is readily coupled to a portable computing host via said bus connector. 12. The assembly of claim 11, wherein said coupling is via is at least partial insertion of said expansion module of a second type into said portable computing host. 13. The assembly of claim 11, wherein said portable computing host uses a closed-back industrial design (ID). 14. The assembly of claim 13, wherein said pottable computing host accepts expansion modules compatible with at least one CF+ expansion module type. 15. The assembly of claim 11, wherein said expansion module of a first type is compatible with at least one MMC type. 16. The assembly of claim 11, wherein said portable computing host uses an open-back industrial design (ID)). 17. The assembly or claim 16, wherein said portable computing host accepts expansion cards compatible with at least one Springboard expansion module type. 18. The assembly of claim 11, wherein said circuitry provides application specific support for a particular application having functionality that is carried out in part on said portable computing host and in part by said circuitry. 19. The assembly of claim 18, wherein said particular application is a network connectivity application, said I/O connector being selectively coupled to an external network, and said module of a first type providing storage for files downloaded from said external network. 20. The assembly of claim 19, wherein said coupling to said external network is via a cell phone. 21. The assembly of claim 19, wherein said downloads includes at least one email that is stored to non-volatile memory in said module of a first type. 22. The assembly of claim 19, wherein said downloads includes at least one media file that is stored to non-volatile memory in said module of a first type. 23. A removable expansion module of a first type with an internal slot for inserting a removable expansion module of a second type, said module of a first type comprising: a) a printed circuit board (PCB); b) an I/O connector mounted on the PCB; c) a first outside frame having an opening to permit and guide the insertion of said module of said second type above the I/O connector; d) a second outside frame; and e) a contact assembly mounted on the PCB, the assembly including a raised shelf having a set of contact fingers electrically coupled to said PCB, at least two side stops, and an end stop; and wherein the I/O connector, the first outside frame, and the contact assembly are cooperatively aligned so as to guide the insertion of said module of said second type within said module of said first type so as to mate with said contact fingers for electrically coupling said module of said second type with said PCB. 24. The removable expansion module of a first type of claim 23, wherein said contact assembly further includes a key stop to insure the proper orientation of said module of said second type. 25. The removable expansion module of a first type of claim 23, further including a first cover for said first outside frame. 26. The removable expansion module of a first type of claim 23, further including covers for both said first and second outside frames. 27. The removable expansion module of a first type of claim 23, wherein said module of a first type is compatible with a portable computing host that uses a closed-back industrial design. 28. The removable expansion module of a first type of claim 27, wherein said module of a first type is compatible with at least one CF+ expansion module type. 29. The removable expansion module of a first type of claim 23, wherein said module of a second type is of the MMC type. 30. The removable expansion module of a first type of claim 23, wherein said module of a second type is a removable memory. 31. The removable expansion module of a first type of claim 23, further including a host expansion bus connector mounted on said PCB for coupling to a host expansion bus, and wherein said PCB includes application specific circuitry. 32. The removable expansion module of a first type of claim 23, wherein said module of a first type is comparable with a portable computing host that uses an open-back industrial design. 33. The removable expansion module or a first type of claim 32, wherein said module of a first type is compatible with the Springboard open-back industrial design. 34. The removable expansion module of a first type of claim 32, wherein said module of a first type flush mounts with the case of said open-back portable computer host. 35. A method of transferring data, comprising: a) providing a network access device; b) providing a removable expansion module or a first type; c) providing a removable expansion module of a second type with an internal slot for receiving and operating with said module of a first type, said module of said second type comprising: i. a printed circuit board (PCB); ii. an I/O connector mounted on the PCB; iii. an outer housing portion with an opening to permit and guide the insertion of said module of said first type above the I/O connector; iv. a contact platform mounted on the PCB, the contact platform including a central planar region with a protruding set of contact fingers, the central region being partially bounded by a guard rim projecting from said central region, said guard rim insuring that said module of said first type is correctly received, said contact fingers being electrically coupled to said PCB; v. a host expansion bus connector mounted on said PCB for coupling to a host expansion bus; and wherein said PCB includes application specific circuitry coupled to said I/O connector, said contact fingers, and said host expansion bus connector; d) providing a poltable computing host having an associated slot for receiving and operating with said module of said second type; c) populating said associated slot of said portable computing host with said module of a second type; f) populating said module of a second type with said module of a first type; g) coupling said module of a second type to said network device; h) under control of said portable computing host, transferring set or data between said network access device and said application specific circuitry. i) under control of said portable computing host, transferring said set of data between said application specific circuitry and said module or a first type. 36. The method of claim 35, wherein the network access device is a cell phone.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.