This SAE Recommended Practice covers the requirements for ethernet physical layer (PHY) qualification. Requirements stated in this document provide a minimum standard level of performance for the PHY in the IC to which all compatible ethernet communications PHY shall be designed. When the communications chipset is an ethernet switch with an integrated automotive PHY (xBASE-T1), then the testing shall include performance for all switch PHY ports as well as each controller interface. No other features in the IC are tested or qualified as part of this SAE Recommended Practice. This assures robust serial data communication among all connected devices regardless of supplier. The goal of SAE J2962-3 is to commonize approval processes of ethernet PHYs across OEMs. The intended audience includes, but is not limited to, ethernet PHY suppliers, component release engineers, and vehicle system engineers.

Vehicle Architecture For Data Communications Standards

Communication Transceivers Qualification Requirements - Ethernet

J2962-3_202109-TEST-REC (Historical)09/21/2021

Vehicle Architecture For Data Communications Standards

Developing a Customized Glucometer Using GreenPAK

TBMG-3976909/01/2021

Glucometers play an important role in managing a diabetic patient’s health issues. Typically, the patient inserts a disposable test strip into the meter, pricks their finger, loads a droplet of blood onto the test strip, waits a couple of seconds, and then receives a reading of the current blood glucose level.

Aircraft Cargo Conveyor

ARP1836C (Current)04/08/2021

This SAE Aerospace Recommended Practice (ARP) outlines the functional and design requirements for a b self-propelled belt conveyor for handling baggage and cargo at aircraft bulk cargo holds. Additional considerations and requirements may legally apply in other countries. As an example, for operation in Europe (E.U. and E.F.T.A.), the applicable EN standards shall be complied with.

AGE-3 Aircraft Ground Support Equipment Committee

Development of High Frequency Response Battery and Enhancement of Power Density for Inverter

2021-01-075304/06/2021

We propose low inductance batteries and enhance power density for a inverter. Conventionally, the capacitors are used for smoothing ripple of the inverter. The low inductance battery which responds at carrier frequency of inverter can reduce the capacity of the smoothing capacitors and enable to enhance power density for the inverter. For reducing the inductance, it is necessary to separately understand the impact of electrochemical reaction under wide range of assumed conditions and structural reaction on frequency characteristics. Furthermore, it is also necessary to design the low inductance batteries based on combining the both of characteristics. However, there are no study focusing on modeling by combining such different domains. Therefore, we made original inductance model inside battery considering frequency characteristics among all materials and structural influence with electromagnetic field analysis simulator. Then, we compared obtained simulated values with actual battery

Komatsu, Daiki, Inoue, Takeshi, Yamauchi, Shin

Reinforcement Learning Based Energy Management of Hybrid Energy Storage Systems in Electric Vehicles

2021-01-019704/06/2021

Energy management in electric vehicles plays a significant role in both reducing energy consumption and limiting the rate of battery capacity degradation. It is especially important for systems with multiple energy storage units where optimally arbitrating power demand among the energy storage units is challenging. While many optimal control methods exist for designing a good energy management system, in this work a Reinforcement-Learning (RL) methodology is explored to design an energy management system for an electric vehicle with a Hybrid Energy Storage System (HESS) that included a battery and a supercapacitor. The energy management system is designed to optimally divide the traction power request among a battery and a super-capacitor in real-time; while trying to minimize the overall energy consumption and battery degradation. Along with a vehicle and electric propulsion model, an empirical battery aging model was incorporated in the problem formulation to address effect of energy

Haskara, Ibrahim, Hegde, Bharatkumar, Chang, Chen-Fang

Supercapacitor Hybrid Vehicle

SAE-PP-0023902/03/2021

Electric vehicles (EVs) has been in the rise in popularity, and as a result, opportunities for alternative power systems research have expanded. Traditional EVs consist of lithium-ion battery for the power source as they can provide long vehicle range at a relatively low cost. [1] Supercapacitors (SCs) are energy storage devices with the high-power density and low energy density, which means it can deliver and handle a high amount of energy in a short period, but energy deliverance is significantly shorter compared to batteries. As a result, supercapacitors cannot be the primary power source in electric vehicles as a long vehicle driving range is essential. However, supercapacitors are currently being studied for a hybrid electric vehicle powertrain. Compare to lithium-ion batteries, supercapacitors have higher charge/discharge efficiency, charge acceptance, and cycle life [2]. Using a supercapacitor as an ancillary device has been shown to reduce power loads on batteries.

Anthony, Lindsay

1.1.203 - Development and Control of Evasive Steer Assist Using Rear Wheel Steering

SAE-PP-0021802/02/2021

A first step towards autonomous rear-end collision avoidance is to start providing natural support to driver in avoiding collision by steering and braking intervention. The proposed system detects slower-moving and stationary vehicles ahead and classifies the risk of having a rear-end-collision. If the risk is high and there is insufficient space to avoid a collision by braking only, the system helps the driver to steer around the obstacle by steering rear toe angle of the wheels individually. A lot of research already exist in the rear wheel steering but the role of rear wheel steering in collision avoidance is not researched yet in great details. Rear wheel steering is used to increase agility and manoeuvrability of vehicle at lower vehicle speed and stability of vehicle at higher vehicle speed. In the situation of the high speed rear end collision where steering is more effective than braking the strategy of control design of rear wheel steering needs to be dynamically updated

Mutagaana, Festo

LEAD-FREE SOLDER VALIDATION TEST PLAN

USCAR40-2 (Current)

11/19/2020

This guideline is applicable to existing lead solder production products that will change to lead-free solder processes to meet the ELV Directive 2000/53/EC Annex II, exemption 8B requirements. This guideline is applicable to similar products used by multiple OEM's that have the same manufacturing processes / equipment. The intent is to streamline the supplier’s environmental testing via common qualification to reduce timing, quantities, and costs.

USCAR

Hybrid and Electric Vehicle Safety Systems Information Report

J2990/2_202011 (Current)11/04/2020

This information report provides an overview of a typical high voltage electric propulsion vehicle (xEV) and the associated on-board safety systems typically employed by OEM’s to protect these high voltage systems. The report aims to improve public confidence in xEV safety systems and dispel public misconceptions about the likelihood of being shocked by the high voltage system, even when the vehicle has been damaged. The report will document select high voltage systems used for xEV’s and describe safety systems employed to prevent exposure to the high voltage systems.

Hybrid - EV Committee

Creating Safe, Reliable Circuits for Next-gen EVs

20AVEP11_0911/01/2020

Design considerations for building robust circuit protection in electrified and increasingly automated vehicles. Designing circuits for electrified vehicles is extremely challenging. To ensure robust and safe designs that can withstand overloads, transients, and electrostatic discharge (ESD), designers need to ensure their circuits have the necessary components that will prevent damage. This article presents recommendations for both circuit protection and efficient control using the on-board charger as an example circuit. Hybrid vehicles, as seen in the Fig. 1 schematic, represent the worst-case scenario for designers who must develop circuitry that can withstand transients from both the internal combustion engine and the highpower electric motors. In this environment, the on-board charger must contend with the AC power line and its potential for generating overloads and transients.

Colby, Jim

Eddy Current Inspection of Open Fastener Holes in Aluminum Aircraft Structure

ARP4402A (Current)

09/22/2020

This SAE Aerospace Recommended Practice establishes the requirements and procedures for eddy current inspection of open fastener holes in aluminum aircraft structures.

AMS K Non Destructive Methods and Processes Committee

Eddy Current Inspection of Open Fastener Holes in Aluminum Aircraft Structure

ARP4402A-TEST-REC (Historical)09/22/2020

This SAE Aerospace Recommended Practice establishes the requirements and procedures for eddy current inspection of open fastener holes in aluminum aircraft structures.

AMS K Non Destructive Methods and Processes Committee

E-MOTORCYCLE PROJECT pushes battery boundaries

20AUTP08_0207/01/2020

For Triumph's TE-1 project, new materials and cell technologies target greater energy density and overall performance. Williams Advanced Engineering's CEO explains. Leveraging its experience in motor-racing technology, hypercars and jet fighters, Williams Advanced Engineering (WAE) is playing a key role in a developing a new high-performance battery system aimed at one of mobility's most package-critical, mass-intensive and promising vehicle applications: electric motorcycles. The project is a partnership with the U.K.'s Triumph Motorcycles, electric-drives specialist Integral Powertrain, and the University of Warwick Manufacturing Group. It is supported by the British government's Innovate program. The project aims to “generate technological innovation for future motorcycles,” said WAE's CEO Craig Wilson, in an interview with SAE's Automotive Engineering.

Birch, Stuart

Plug Power, Lightning Systems partner to produce fuel-cell-electric trucks

20TOFHP06_0706/01/2020

A first-of-its-kind propulsion alternative for transporting products between ports, warehouses and distribution centers is on the horizon. “The Class 6 fuel-cell-electric vehicle (FCEV) is a perfect zero-emission solution for the movement of goods through the ‘middle miles,’” said Andy Marsh, CEO of Plug Power Inc., a supplier of hydrogen fuel-cell systems. Plug Power and electric drivetrain manufacturer Lightning Systems recently partnered to produce what they claim is the world's first hydrogen fuel-cell-powered electric Class 6 truck. Built off the Chevrolet Low Cab Forward 6500XD platform, the standard FCEV has an estimated driving range of 200 miles (322 km). An extended-range option doubles the range to 400 miles (644 km). “The most important benefit of a fuel cell-equipped BEV is operating range,” said Tim Reeser, CEO of Lightning Systems. “Many intermodal delivery routes in the United States are greater than 150 miles, making the fuel-cell-equipped BEV an ideal piece of

Buchholz, Kami

Annual Product Guide

20TOFHP06_1206/01/2020

Auxiliary Power Unit Electrical Interface Requirements for Class Eight Trucks

J2891_202004 (Current)

04/29/2020

This SAE Recommended Practice covers the design and application of a 120 VAC single phase engine based auxiliary power unit or GENSET. This document is intended to provide design direction for the single phase nominal 120 VAC as it interfaces within the truck 12 VDC battery and electrical architecture providing power to truck sleeper cab hotel loads so that they may operate with the main propulsion engine turned off.

Truck and Bus Electrical Systems Committee