Variable ratio regenerative braking device

Patent · Tue Dec 15 00:00:00 EST 1981

OSTI ID:864068

Hoppie, Lyle O ^[1]

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1. Birmingham, MI

Disclosed is a regenerative braking device (10) for an automotive vehicle. The device includes an energy storage assembly (12) having a plurality of rubber rollers (26, 28) mounted for rotation between an input shaft (36) and an output shaft (42), clutches (38, 46) and brakes (40, 48) associated with each shaft, and a continuously variable transmission (22) connectable to a vehicle drivetrain and to the input and output shafts by the respective clutches. The rubber rollers are torsionally stressed to accumulate energy from the vehicle when the input shaft is clutched to the transmission while the brake on the output shaft is applied, and are torsionally relaxed to deliver energy to the vehicle when the output shaft is clutched to the transmission while the brake on the input shaft is applied. The transmission ratio is varied to control the rate of energy accumulation and delivery for a given rotational speed of the vehicle drivetrain.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Assignee: Eaton Corporation (Cleveland, OH)
• Patent Number(s): US 4305489
• Application Number: 06/100,783
• OSTI ID: 864068
• Country of Publication: United States
• Language: English

Related Subjects

variable
ratio
regenerative
braking
device
disclosed
10
automotive
vehicle
energy
storage
assembly
12
plurality
rubber
rollers
26
28
mounted
rotation
input
shaft
36
output
42
clutches
38
46
brakes
40
48
associated
continuously
transmission
22
connectable
drivetrain
shafts
respective
torsionally
stressed
accumulate
clutched
brake
applied
relaxed
deliver
varied
control
rate
accumulation
delivery
rotational
speed
vehicle drive
torsionally stressed
variable transmission
output shafts
rubber rollers
automotive vehicle
braking device
storage assembly
variable ratio
regenerative braking
rotational speed
output shaft
energy storage
input shaft
continuously variable
torsionally relaxed
accumulate energy
vehicle drivetrain
/192/74/185/474/477/