Electric Vehicles

Chrysler’s Ram 1500 PHEV Program Shows Positive Results

December 2011, Green Fleet Magazine - Feature

by Greg Basich - Also by this author

Earlier in 2011 Chrysler launched a demonstration program of 140 Ram 1500 plug-in hybrid electric (PHEV) pickup trucks. Since the program started, private- and public-sector fleets across the country have been testing the vehicles. Green Fleet spoke with Abdullah A. Bazzi, Sr. Manager, Electrified Power Train Programs for Chrysler Group LLC, about the program’s progress and the company’s plan for the vehicles.

So far, Chrysler has delivered vehicles to the City of Yuma, Ariz., San Francisco and Sacramento, Calif., Charlotte, N.C., Boston, Mass., Albany N.Y., and Auburn Hills, Mich. Houston-based utility CenterPoint Energy is testing the trucks and, according to Chrysler, seven other fleets across the U.S. are scheduled to receive models for testing.

“There are a variety of vehicle uses the partners are engaged in; some are using them to replace existing fleet vehicles for transportation and commuting; some are being used as police vehicles, some for water meter readings,” Bazzi explained. “The variety of drive cycle, both city and highway, will give Chrysler invaluable data on a daily basis.”

Chrysler’s Bazzi said the project was submitted in April 2009 as part of a U.S. Department of Energy (DOE) American Reinvestment and Recovery Act grant program, and work started in September 2009.

“Chrysler believes this project is an enabler to demonstrate the technology for eventual production capabilities in a number of vehicle applications,” Bazzi said.

The automaker has used the funds to develop and demonstrate a range of industry-first electric vehicle technologies as part of this project. Two examples include the first V-8 ATPZEV engine and 6.6 Kw AC power generation.

“Chrysler has a number of technologies that are being implemented on this project, ranging from the ATPZEV engine performance, thermal management of the battery under extreme conditions, AC power generation, smart grid communication, and reverse power flow,” Bazzi said. “Out of all of these technologies, some are breakthroughs in the industry. Also, we have a NAVTEQ map-based system on a number of vehicles that will enable fuel-economy improvements as well as a front axle disconnect switch that will allow the vehicle to switch to 2WD, without driver intervention, under certain drive conditions.”

Bringing all of these technologies together in the pickup, while providing a level of performance that meets the needs of its users, has been a challenge, according to Bazzi, but one that Chrysler has met.

“The integration of the different elements of the PHEV system presented a challenge to optimize the performance of the engine and the Li-Ion Battery thermal management system, the battery’s performance under extreme weather conditions, meeting the ATPZEV emissions requirements, and the calibration of the system’s drivability,” he said.

Based on the current tests, the vehicles are performing well in the extreme conditions in which fleets are driving them. Bazzi said Chrysler is monitoring each vehicle via a cell-linked data recorder module and is receiving regular feedback from its fleet partners on fuel economy, usage cycle, maintenance schedule, and overall vehicle performance.

“So far, the key metrics of the project are being met with respect to vehicle operation, fuel used, and charging capability,” Bazzi said.

Chrysler’s Bazzi said that since the automaker announced the program, fleets across the U.S. are interested in the vehicles.

“We have received numerous requests to place vehicles with utility companies, fleets, transportation, government agencies; since the program scope is limited to 140 vehicles, we will not be placing additional vehicles,” Bazzi said.

Although the automaker doesn’t plan to place any vehicles in addition to the currently planned 140 units with fleets, Chrysler definitely sees potential for this type of vehicle in the fleet marketplace based on the program’s results.

“Based on the feedback and the reviews, we feel this technology has the potential acceptance by fleets; the utility of the Ram truck yields an ideal vehicle for fleet applications,” Bazzi said.

By Greg Basich

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