Variable ratio regenerative braking device

Patent · Tue Dec 15 04:00:00 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
• 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

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