Bus

Daimler Unveils EPA 2010-Compliant Orion Model

Posted on March 10, 2010 by Janna Starcic, Executive Editor

Page 1 of 2

[IMAGE]Daimler.jpg[/IMAGE]In early February, Daimler Buses North America (DBNA) held a transit clinic at its Mississauga, Ontario, plant to give customers a sneak peak at its revamped transit offering — the EPA 2010-compliant Orion VII model. In addition to being equipped with a propulsion system that adheres to the Environmental Protection Agency (EPA) emission standards, the new vehicle is also a showcase for new customer options such as BRT roof styling, a 1:6 slope ramp and floor hatches. Other innovations that aren't as visible include the standardization of various components and the simplification of processes across the hybrid, diesel and CNG models.

"The first goal was to reach EPA 2010, as well as reach a new level of quality," says Danijel Miklaucic, project EPA2010 manager, of the undertaking.

EPA 2010 changes

To be compliant with the EPA emission standards, the company employed SCR (selective catalytic reduction) technology, which required some adjustments to the vehicle frame, said Ian Moger, senior engineer manager for DBNA. The SCR technology needed to occupy the space of the rear air- conditioning unit, which led to the use of a roof-mounted air conditioning unit. The CNG model still uses the rear engine compartment to house the air- conditioning unit.

The hybrid product is equipped with a Cummins ISB 280 Diesel engine; the diesel bus is equipped with Cummins ISL 280 Diesel; and the CNG model features the Cummins ISL-G 280 CNG engine. The company integrated the latest in transmissions for the vehicle as well to further improve fuel economy performance. A new T-Drive Hybrid arrangement was also developed with BAE Systems.

"We looked for optimizations of standardizations in the area of the cooling system, battery tray, driver's barrier and bridge panel," Moger says. "We eliminated the engine cradle with the EPA2010 design and we've made improvements to the front and rear suspensions."

Other design standardizations included the mounting brackets for pipes and harnesses. "We've reduced the number of studs on the vehicle as well as reduced the number of ways we attached harnesses from 20 to about eight," Moger says.

In addition, more customer options were added to the new EPA2010 Orion VII, including BRT roof styling, disc brakes, a ramp with 1:6 slope and floor hatches that provide easy access to such areas as connections on transmissions.

"Bad road" testing

Once the prototypes were completed, DBNA conducted structural durability testing on the vehicles. This program, also know as the "bad road" test, was an all-new testing process for the new EPA 2010 compliant Orion VII transit bus. Daimler's testing program is comprised of the following tests: Altoona, endurance, functional, all-season road testing and the bad road test. The structural durability testing evaluates the lifetime of the bus in a compressed timeframe, allows for three-dimensional testing for the frame and includes all driving maneuvers (steering, braking, etc.). It takes up to one year to complete, while the previous testing method includes the use of the "shaker" test, which lasts three months and simulates vertical forces in a controlled, indoor environment.

The Daimler Durability Testing program is conducted at the Bosch Proving Ground in New Carlisle, Ind. During the 12-month test period, the buses are driven 24 hours a day over a track, which includes numerous "bad road" conditions such as impact bumps, staggered bumps, resonance road and light cobblestones as well as the Altoona upper/lower track." Our goal is to simulate the service life of our customers," says Oliver Kurz, manager of testing and prototyping.

Following 2,400 laps on the Bad Road Proving Ground, the EPA 2010 Orion VII will have completed a simulation of driving conditions representative of over 500,000 transit service miles in North America's most severe operating environment. Vehicle engineers are able to assess the long-term structural durability; steering and drive train effects; wear and tear of brakes; and wear and tear of the engine and other components based on this testing process." It takes one year to complete this testing versus three months with the shaker test," says Kurz. "And the benefits are far superior."

View comments or post a comment on this story. (0 Comments)

More News

TAPTCO, MSTCO create course to help drivers pass CDL test

The course is available in hard copy containing seven interactive CDs together with a trainer’s guide, a driver’s study guide, and a book of practice tests. Alternately, the course is available over the web through a learning management system, so that applicants can go through the training and practice tests from any location.

Canada's London Transit adding 28 New Flyer Xcelsior buses

The award is part of a contract extension from a Nov. 13, 2014 LTC contract, awarded to New Flyer, whereby a one-year extension on the contract was exercisable at the discretion of LTC.

Capital Metro retires last University of Texas shuttle bus

The fleet of burnt orange and white buses has served the UT campus since 1998 and has become a hallmark of Capital Metro’s longstanding partnership with the university.

COTA to provide free Wi-Fi on entire 444-bus fleet

The cost to COTA will be no more than $250,000 per year, though, the agency is hopeful negotiations with companies vying for the contract will result in no charge for them.

Suspicious device found on NY MTA bus

Discovered during a routine inspection, the device was attached with a large magnet to the bottom of the oil pan near the bumper.

See More News

Post a Comment

Post Comment

Comments (0)

More From The World's Largest Fleet Publisher

Automotive Fleet

The Car and truck fleet and leasing management magazine

Business Fleet

managing 10-50 company vehicles

Fleet Financials

Executive vehicle management

Government Fleet

managing public sector vehicles & equipment

TruckingInfo.com

THE COMMERCIAL TRUCK INDUSTRY’S MOST IN-DEPTH INFORMATION SOURCE

Work Truck Magazine

The number 1 resource for vocational truck fleets

Schoolbus Fleet

Serving school transportation professionals in the U.S. and Canada

LCT Magazine

Global Resource For Limousine and Bus Transportation

Please sign in or register to .    Close