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Title: Variable ratio regenerative braking device

Abstract

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.

Inventors:
 [1]
  1. (Birmingham, MI)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
864068
Patent Number(s):
4305489
Application Number:
06/100,783
Assignee:
Eaton Corporation (Cleveland, OH) LLNL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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/

Citation Formats

Hoppie, Lyle O. Variable ratio regenerative braking device. United States: N. p., 1981. Web.
Hoppie, Lyle O. Variable ratio regenerative braking device. United States.
Hoppie, Lyle O. Tue . "Variable ratio regenerative braking device". United States. https://www.osti.gov/servlets/purl/864068.
@article{osti_864068,
title = {Variable ratio regenerative braking device},
author = {Hoppie, Lyle O.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {12}
}

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