Variable ratio regenerative braking device

Title: Variable ratio regenerative braking device

Full Record
Other Related Research

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:

Hoppie, Lyle O. ^[1]

(Birmingham, MI)

Issue Date:: 1981-12-15

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.

Copy to clipboard


                    Hoppie, Lyle O. Variable ratio regenerative braking device.  United States.

Copy to clipboard


                    Hoppie, Lyle O. Tue .  
        "Variable ratio regenerative braking device".  United States.  https://www.osti.gov/servlets/purl/864068.

Copy to clipboard


                    
@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}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar records in DOE Patents and OSTI.GOV collections:

Regenerative braking device

Patent Hoppie, Lyle O. (Birmingham, MI)

Disclosed are several embodiments of a regenerative braking device for an automotive vehicle. The device includes a plurality of rubber rollers (24, 26) mounted for rotation between an input shaft (14) connectable to the vehicle drivetrain and an output shaft (16) which is drivingly connected to the input shaft by a variable ratio transmission (20). When the transmission ratio is such that the input shaft rotates faster than the output shaft, the rubber rollers are torsionally stressed to accumulate energy, thereby slowing the vehicle. When the transmission ratio is such that the output shaft rotates faster than the input shaft,more »« less
Full Text Available
Regenerative braking device with rotationally mounted energy storage means

Patent Hoppie, Lyle O. (Birmingham, MI)

A regenerative braking device for an automotive vehicle includes an energy storage assembly (12) having a plurality of rubber rollers (26, 28) mounted for rotation between an input shaft (30) and an output shaft (32), clutches (50, 56) and brakes (52, 58) 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. In a second embodiment the clutches and brakes are dispensed with and the variable ratio transmission is connected directly across the input and output shafts. In both embodiments the rubber rollers aremore »« less
Full Text Available
Variable compression ratio device for internal combustion engine

Patent Maloney, Ronald P.; Faletti, James J.

An internal combustion engine, particularly suitable for use in a work machine, is provided with a combustion cylinder, a cylinder head at an end of the combustion cylinder and a primary piston reciprocally disposed within the combustion cylinder. The cylinder head includes a secondary cylinder and a secondary piston reciprocally disposed within the secondary cylinder. An actuator is coupled with the secondary piston for controlling the position of the secondary piston dependent upon the position of the primary piston. A communication port establishes fluid flow communication between the combustion cylinder and the secondary cylinder.
Full Text Available
Combined hydraulic and regenerative braking system

Patent Venkataperumal, Rama R. (Troy, MI); Mericle, Gerald E. (Mount Clemens, MI)

A combined hydraulic and regenerative braking system and method for an electric vehicle, with the braking system being responsive to the applied hydraulic pressure in a brake line to control the braking of the vehicle to be completely hydraulic up to a first level of brake line pressure, to be partially hydraulic at a constant braking force and partially regenerative at a linearly increasing braking force from the first level of applied brake line pressure to a higher second level of brake line pressure, to be partially hydraulic at a linearly increasing braking force and partially regenerative at a linearlymore »« less
Full Text Available
Adaptive controller for regenerative and friction braking system

Patent Davis, Roy I. (Ypsilanti, MI)

A regenerative and friction braking system for a vehicle having one or more roadwheels driven by an electric traction motor includes a driver responsive device for producing a brake demand signal having a magnitude corresponding to the level of braking force selected by the driver and friction and regenerative brakes operatively connected with the roadwheels of the vehicle. A system according to this invention further includes control means for operating the friction and regenerative braking subsystems so that maximum brake torques sustainable by the roadwheels of the vehicle without skidding or slipping will not be exceeded.
Full Text Available

Similar Records