J1952_202405 All-Wheel Drive Systems Classification

Revised

05/16/2024

Features
Issuing Committee
Scope
Content
This document seeks to classify all-wheel drive (AWD) architectures primarily based on the installed hardware and does not consider the implementation of the controls and software. For example, a power transfer unit (PTU) may be equipped with a clutch that is capable of torque management, but the control implementation only uses it for disconnection functions without torque management.
In this SAE Recommended Practice, attention will be given to passenger cars and light trucks (through Class III). The definitions presented herein may also be applicable to heavy trucks (Class 4 through 8) and off-highway applications using more than two axles but are primarily focused on passenger cars and light trucks.
Rationale
Content
With the proliferation of hybrid and all-electric vehicles and their architectures, the all-wheel drive classifications currently in SAE J1952 do not accurately reflect the myriad of different ways all-wheel drive can be achieved with electrification. This revision proposes to update the standard to include relevant language and descriptions to cover all-electric, electrified (hybrid), and conventional internal combustion engine (ICE) architectures.
Meta TagsDetails
DOI
https://doi.org/10.4271/J1952_202405
Pages
10
Citation
SAE International Recommended Practice, All-Wheel Drive Systems Classification, SAE Standard J1952_202405, Revised May 2024, Reaffirmed April 2018, Issued January 1991, https://doi.org/10.4271/J1952_202405.
Additional Details
Publisher
Published
May 16
Product Code
J1952_202405
Content Type
Recommended Practice
Status
Revised
Language
English