US Hybrid Licenses Parallel Hybrid Powertrain Design

US Hybrid Corp. announced that it has received a license to use and commercialize the Southwest Research Institute’s (SwRI) patented PECOS (Parallel Hybrid Electric Combination of Speeds) parallel hybrid drive system.

The PECOS system is described as offering a unique parallel/series hybrid solution utilizing a planetary system and is capable to operate in a parallel, series or pure EV mode. US Hybrid is commercializing the patented hybrid system technology for use in commercial delivery vehicles, ports, off-road and GSE vehicles.

"The PECOS system offers cost-effective hybrid solutions with substantial fuel economy improvement and emission reduction. The initial product development focus is for port operation support vehicles and off-road commercial vehicles," said Dr. Abas Goodarzi, President and CEO of US Hybrid.

The PECOS system was developed and tested at the SwRI in an internally funded project. Chassis testing of the powertrain on a mid-sized vehicle produced fuel economy benefits in the range of 40 to 50% for city driving.

US Hybrid states that it will provide an integrated hybrid solution for commercial and off-road vehicles to enhance fuel economy and reduce emissions. The PECOS system does not need a clutch or torque converter to launch the vehicle and has only one electric machine for both parallel and series hybrid operation. The company claims that the PECOS hybrid system provides a commercially viable hybrid solution to meet the 2010 emission requirements.