Vehicle System Control for Start-Stop Powertrains with Automatic Transmissions Ford Motor Company

Format:

Conference/Event

Author/Creator:

Wang, Wang, author.

Contributor:

Kuang, Ming

McGee, Ryan

Conference Name:

SAE 2013 World Congress & Exhibition (2013-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2013

Summary:

The 2013 Ford Fusion will be launched with an optional automatic engine start-stop feature. To realize engine start-stop on a vehicle equipped with a conventional powertrain, there are two major challenges in the vehicle system controls. First, the propulsive torque delivery from a stopped engine has to be fast. The vehicle launch delay has to be minimized such that the corporate vehicle attributes can be met. Second, the fuel economy improvement offered by this technology has to justify the cost associated with it. In pursuing fuel economy, the driver's comfort and convenience should be minimally impacted. To tackle these challenges, a vehicle system control strategy has been developed to accurately interpret the driver's intent, monitor the vehicle subsystem's power demands, schedule engine automatic stop and re-start, and coordinate the fast and smooth torque delivery to the wheels. Vehicle tests have shown that the start-stop feature provides a seamless stop-start operation while introducing minimal intrusion to the driving experience. The start-stop technology improves fuel economy by 3.5% on average

Notes:

Vendor supplied data

Publisher Number:

2013-01-0347

Access Restriction:

Restricted for use by site license