Our Terms of Service and Privacy Policy have changed.

By continuing to use this site, you are agreeing to the new Privacy Policy and Terms of Service.

Chrysler battery-less hybrids announced

hydraulic_hybrid.top.jpgChrysler engineers will adapt the EPA's hydraulic hybrid system to larger vehicles like the Town & Country minivan. By Peter Valdes-Dapena, senior writer


NEW YORK (CNNMoney) -- Chrysler Group is working on a new hybrid minivan that doesn't use batteries or electric motors to drive it, the automaker announced with the Environmental Protection Agency on Wednesday.

By the end of next year a Town and Country van built around a hybrid system that relies on pumped-up hydraulic fluid, rather than expensive batteries, will be up and running, Chrysler said.

The so-called hydraulic hybrid system was developed at the EPA's Ann Arbor laboratory and the agency has been testing the system for years in commercial trucks.

Chrysler wants to use it for light-duty trucks, minivans, and large passenger cars.

Instead of storing electricity in a battery pack, the hydraulic hybrid system stores energy normally lost during braking to drive pumps that squeeze hydraulic fluid into a large on-board tank that also contains a nitrogen-filled bladder. The nitrogen bladder acts like a spring, pushing back against the fluid.

When a driver is approaching a stop sign, some of the braking energy pumps fluid into the tank. As with most hybrid vehicles, the gasoline engine shuts off completely when the vehicle stops. When it's time to go again, the pressure in the tank is released to push hydraulic motors that turn the wheels. When it's needed, the gas engine takes over again.

The system increases fuel efficiency by about 30% to 35% in overall driving and up to 60% in city driving, according to the EPA.

Among the benefits of the system, according to the EPA, is its low cost and simplicity. Once produced in high volumes, the system will pay for itself through fuel savings in less than three years, the EPA predicts. Battery-electric hybrid cars typically take much longer.

"The EPA and Chrysler are working together to explore the possibilities for making this technology affordable and accessible to drivers everywhere," EPA Administrator Lisa Jackson.

Hybrid cars currently make up less than two percent of all new car sales, with Toyota's Prius model making up the largest number far, with Toyota introducing a new version later this year. Chrysler is working to improve the fuel economy of its vehicle line-up and has been working to rapidly revamp its offerings, but does not currently have any hybrids on the market. To top of page

Find Your Next Car
Index Last Change % Change
Dow 17,550.69 -47.51 -0.27%
Nasdaq 5,105.55 -9.83 -0.19%
S&P 500 2,093.32 -4.72 -0.22%
Treasuries 2.21 0.06 2.84%
Data as of 6:58pm ET
Company Price Change % Change
Apple Inc 114.64 -3.80 -3.21%
Baxter International... 40.31 0.80 2.02%
Bank of America Corp... 17.80 0.03 0.17%
Baxalta Inc 37.10 3.95 11.92%
Frontier Communicati... 5.25 0.10 1.94%
Data as of 4:02pm ET
Sponsors

Sections

The company's movie studios went up 13% thanks in large part to "Avengers: Age of Ultron." More

Facebook patented a technology to allow lenders to survey your friends' credit scores and use them to approve or reject your loan application. More

Candle-Lite is committed to manufacturing in America -- which is a good thing because it contributes more than $300 million to Ohio's economy. More

You can't blame it on the economy anymore. More Millennials now have jobs, but are still living at home. More