BorgWarner has said it is providing Ford with its Eco-Launch stop/start solenoid valve and hydraulic accumulator. It is available on the Ford 8-speed, front-wheel drive (FWD), mid-torque transmission used for a variety of vehicles in North America.
BorgWarner's Eco-Launch stop/start solenoid valve and hydraulic accumulator delivers smoother launches during restarts and enables automakers to easily integrate stop/start functionality across multiple platforms. "BorgWarner's Eco-Launch technology provides drivers with the fuel economy benefits of stop/start and the seamless launches they expect," said Dr Martin Fischer, president and general manager, BorgWarner Transmission Systems. "Our solution is a cost-effective, fast-to-market approach that allows automakers to enable existing or new automatic transmissions to be compatible with stop/start strategies."
Shutting off the engine when the vehicle stops increases fuel economy 3 to 10%, depending on driving patterns. However, accelerating from the stop mode can cause automatic transmissions to lurch or roll back. For quick launches without lurching, BorgWarner's low-noise, high-flow, low-leak solenoid valve enables the hydraulic accumulator to prime the transmission faster than the driver can switch from the brake to the accelerator.