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TMC IR 2017-2, Compliance and Certification of Electronic Logging Devices

S.12 Onboard Vehicle Electronics Information Report: 2017-2, Compliance and Certification of Electronic Logging Devices This document provides motor carriers and owner-operators guidance on what constitutes a compliant electronic logging device (ELD) system. This paper is not meant to cover all aspects of the ELD certification process, but is intended to provide sufficient detail such that fleets and owner-operators using this document can determine what is an acceptable level of supplier compliance with the Federal Motor Carrier Safety Adminstration’s (FMCSA) new ELD mandate.

June 30, 2017

TMC IR 2016-1, Battery Electric Vehicles in Light- & Medium-Duty and Specialty Truck Commercial Applications

A Class 1-6 commercial motor vehicle (CMV) powered solely by electricity is much different than a CMV powered by an internal combustion engine (ICE) or by hybrid electric vehicle (HEV) design. A battery electric vehicle (BEV) design includes storage only for its onboard battery capacity, not fossil fuel. The battery capacity has a direct impact on vehicle range and powered features. The electrical propulsion system requires a high voltage supply and significant current draw that dictates the capability and therefore the battery capacity. Unlike electric cars that can transport a relatively light load within a limited range, a commercial application relates to the operator’s ability to fulfill a customer’s expectations. Commercial BEVs have balanced design considerations that involve total vehicle cost, weight, energy storage capability, and lifecycle value. The primary consideration is the battery in which lithium-ion (Li-ion) technology has grown to be most popular for its design. Other considerations rely on the unloaded weight amount the CMV has compared to its maximum load weight amount dependent on distance, geographical terrain, duty cycle and any other specific industry segments that test its capabilities. End users must understand their own applications before changing from ICE design or HEV fleet units to fully electric.

June 01, 2016

RP 628C, Aftermarket Brake Lining Classification

The purpose of this Recommended Practice (RP) is to provide information for judging the performance of aftermarket brake linings on air-actuated foundation brakes, when performing the dynamometer test and vehicle stopping distance procedures in Federal Motor Vehicle Safety Standard (FMVSS) No. 121, Air Brake Systems, and lining supplier qualification information. Such information will assist fleet operators in choosing aftermarket brake linings that will perform adequately on typical combination (tractor/trailer) vehicles and single trucks.

May 12, 2016

TMC IR 2015-1, Evaluation, Specification, Deployment and Maintenance Considerations for Natural Gas Powered Heavy-Duty Commercial Vehicles

Natural gas fuels can be a suitable alternative to diesel fuel for commercial vehicles in certain environments and applications. However, it is best to understand all facets of the operation, discuss them both internally and with local vendors (where applicable), and to establish realistic return-on-investment targets up front. Taking the time to build a proper business case and understand all the variables that come into play will pay dividends in terms of ensuring a successful natural gas vehicles deployment that meets corporate financial, reliability and acceptance expectations.

October 01, 2015

Aftermarket Brake Lining Classification (RP 628B)

The purpose of this Recommended Practice (RP) is to provide information for judging the performance of aftermarket brake linings on air-actuated foundation brakes, including testing in accordance with the dynamometer test procedure in Federal Motor Vehicle Safety Standard (FMVSS) 121 and lining supplier qualification information. Such information will assist fleet operators in choosing aftermarket brake linings that will perform adequately on typical combination (tractor/trailer) vehicles and single trucks.

June 01, 2014




RP 628B, Aftermarket Brake Lining Classification

The purpose of this Recommended Practice (RP) is to provide information for judging the performance of aftermarket brake linings on air-actuated foundation brakes, including testing in accordance with the dynamometer test procedure in Federal Motor Vehicle Safety Standard (FMVSS) 121 and lining supplier qualification information. Such information will assist fleet operators in choosing aftermarket brake linings that will perform adequately on typical combination (tractor/trailer) vehicles and single trucks.

June 01, 2013