Chrysler Group LLC Transforms Powertrain Strategy

MULGRAVE, AUSTRALIA – January 11, 2010: Chrysler Group LLC is revamping its powertrain lineup with technology that will contribute to an overall fuel-efficiency improvement of more than 25 percent during the 2010-2014 period.

As a result of the new alliance with Fiat, the company’s five-year business plan has an uncompromising powertrain offensive, including a progressive vehicle electrification strategy.

“Chrysler Group will attain leadership by rapidly applying Fiat Powertrain technologies, such as Multiair, direct injection, turbocharging and transmission systems to its powertrain portfolio,” said Paolo Ferrero, Senior Vice President, Chrysler Powertrain. “By 2014 calendar year, more than 80 percent of Chrysler Group’s current powertrain lineup will undergo a complete makeover.”

In order to combine complementary strengths, Fiat Powertrain is the global centre of expertise for diesel technology and small displacement gas engines (less than or equal to 1.8 litres). Chrysler Powertrain is the global centre of expertise for large displacement gasoline engines and vehicle electrification technology. The primary goal is leveraging combined powertrain and vehicle knowledge to achieve best-in-class fuel economy for both companies.

New Four-cylinder Engines
Four-cylinder engine options are being expanded at Chrysler Group with the introduction of Fiat Powertrain's 1.4-litre, in-line four-cylinder Fully Integrated Robotized Engine (FIRE) featuring Multiair. In the early 1970s, the use of robotics in assembly plants was not common. The term “FIRE” came into existence when Fiat integrated the use of robotics in the production process of manufacturing plants. Although mechanized assembly is common today, the brand name FIRE has remained with Fiat’s powertrain lineup.

Two variations of the engine will be available, naturally aspirated and turbo. Both versions of the 1.4-litre FIRE feature four valves per cylinder and incorporate state-of-the-art technology for Fully Variable-valve Actuation (FVVA), also known as Multiair. Fiat’s Multiair technology significantly reduces emissions, while improving fuel economy and power. This sophisticated electro-hydraulic variable-valve actuation technology delivers an increase in power up to 10 percent, an improvement in low rpm torque up to 15 percent and a reduction in fuel consumption and emissions up to 10 percent when compared with similar engines without the technology. The Multiair system is based on a series of Fiat Powertrain patents related to hardware, combustion strategies and controls that allow for full control of the lift and timing of engine valves, independently on each cylinder and during each single engine stroke. Well suited for a small car application, the first North American vehicle to feature the 1.4-liter FIRE with Multiair is the Fiat 500