High reduction transaxle for electric vehicle
- Plymouth, MI
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.
- Research Organization:
- EATON CORP
- DOE Contract Number:
- AC07-84NV10366
- Assignee:
- Eaton Corporation (Cleveland, OH)
- Patent Number(s):
- US 4702125
- OSTI ID:
- 866397
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12
16
22
24
26
28
30
34
38
60
62
64
66
68
78
78a
80
80a
assemblies
assembly
brake
brakes
carrier
change
change section
connected
connects
continuously
differential
directly
drive
drive shaft
driven
drivetrain
driving
electric
electric vehicle
engageable
engaging
final
gear
gear set
gears
ground
input
land
motor
planetary
planetary gear
powered
ratio
ratio change
reduction
respectively
section
selectively
set
sets
shaft
speed
speed reduction
sun
sun gear
sun gears
transaxle
vehicle
vehicle power
wheels