High reduction transaxle for electric vehicle
Abstract
A drivetrain (12) includes a transaxle assembly (16) for driving ground engaging wheels of a land vehicle powered by an AC motor. The transaxle includes a ratio change section having planetary gear sets (24, 26) and brake assemblies (28, 30). Sun gears (60, 62) of the gear sets are directly and continuously connected to an input drive shaft (38) driven by the motor. A first drive (78a) directly and continuously connects a planetary gear carrier (78) of gear sets (24) with a ring gear (68) of gear set (26). A second drive (80a) directly and continuously connects a planetary gear carrier (80) of gear set (26) with a sun gear (64) of a final speed reduction gear set (34) having a planetary gear carrier directly and continuously connected to a differential (22). Brakes (28, 30) are selectively engageable to respectively ground a ring gear 66 of gear set 24 and ring gear 68 of gear set 26.
- Inventors:
-
- Plymouth, MI
- Issue Date:
- Research Org.:
- EATON CORP
- OSTI Identifier:
- 866397
- Patent Number(s):
- 4702125
- Assignee:
- Eaton Corporation (Cleveland, OH)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60K - ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES
B - PERFORMING OPERATIONS B60 - VEHICLES IN GENERAL B60Y - INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- DOE Contract Number:
- AC07-84NV10366
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- reduction; transaxle; electric; vehicle; drivetrain; 12; assembly; 16; driving; ground; engaging; wheels; land; powered; motor; ratio; change; section; planetary; gear; sets; 24; 26; brake; assemblies; 28; 30; sun; gears; 60; 62; directly; continuously; connected; input; drive; shaft; 38; driven; 78a; connects; carrier; 78; 68; set; 80a; 80; 64; final; speed; 34; differential; 22; brakes; selectively; engageable; respectively; 66; speed reduction; ratio change; sun gear; electric vehicle; drive shaft; gear set; planetary gear; sun gears; change section; vehicle power; /475/
Citation Formats
Kalns, Ilmars. High reduction transaxle for electric vehicle. United States: N. p., 1987.
Web.
Kalns, Ilmars. High reduction transaxle for electric vehicle. United States.
Kalns, Ilmars. Thu .
"High reduction transaxle for electric vehicle". United States. https://www.osti.gov/servlets/purl/866397.
@article{osti_866397,
title = {High reduction transaxle for electric vehicle},
author = {Kalns, Ilmars},
abstractNote = {A drivetrain (12) includes a transaxle assembly (16) for driving ground engaging wheels of a land vehicle powered by an AC motor. The transaxle includes a ratio change section having planetary gear sets (24, 26) and brake assemblies (28, 30). Sun gears (60, 62) of the gear sets are directly and continuously connected to an input drive shaft (38) driven by the motor. A first drive (78a) directly and continuously connects a planetary gear carrier (78) of gear sets (24) with a ring gear (68) of gear set (26). A second drive (80a) directly and continuously connects a planetary gear carrier (80) of gear set (26) with a sun gear (64) of a final speed reduction gear set (34) having a planetary gear carrier directly and continuously connected to a differential (22). Brakes (28, 30) are selectively engageable to respectively ground a ring gear 66 of gear set 24 and ring gear 68 of gear set 26.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1987},
month = {Thu Jan 01 00:00:00 EST 1987}
}