J257_198503: BRAKE RATING HORSEPOWER REQUIREMENTS—COMMERCIAL VEHICLES

Features

Issuing Committee: Truck and Bus Brake Systems Committee

Scope

Content

The minimum performance values in this recommended practice are applicable to vehicles with brake systems having typical service pressure ranges 0-1800 psi (0-12.4 MPa) hydraulic or 0-120 psi (0-0.8 MPa) air only. SAE J880 not only provides for determining maximum brake rating horsepower capability, but also permits verification of any desired or arbitrary level such as the requirement established herein. The determining criteria for deciding brake rating horsepower capability are:

(a)
Cold brake stopping ability.
(b)
Fade as a result of horsepower absorption.
(c)
Hot brake stopping ability following horsepower absorption.
(d)
Brake system stability following horsepower absorption.
(e)
Functional and structural integrity of brake system following test.

Meta Tags

Topics: Commercial vehicles
Braking systems

Details

DOI: https://doi.org/10.4271/J257_198503

Pages: 3

Citation: SAE International Recommended Practice, BRAKE RATING HORSEPOWER REQUIREMENTS—COMMERCIAL VEHICLES, SAE Standard J257_198503, Reaffirmed March 1985, Issued May 1972, https://doi.org/10.4271/J257_198503.

Additional Details