Holistic Vehicle Energy Management - Moving Towards CAFE's Target Bosch Engineering GmbH

Format:

Conference/Event

Author/Creator:

Eymann, Eymann, author.

Contributor:

Benninger, Klaus

Lillie, Cathy

Vikas, Athanasios

Williams, Kyle

Conference Name:

SAE 2011 World Congress & Exhibition (2011-04-12 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2011

Summary:

EPA and NHTSA have harmonized Regulations for Greenhouse Gas(GHG) emissions and Corporate Average Fuel Economy (CAFE) for modelyear (MY) 2012-16, published on April 1st, 2010. This requirementapplies to all passenger cars and light trucks. Therefore thereduction of CO₂ emissions will be a major challenge for theautomotive industry in the coming years to achieve the targets (GHG& CAFE) of 250 g/mi CO₂ and 35.5 miles per gallon (mpg) for MY2016. In addition to combustion engine improvements, vehicle energymanagement and operating strategies offer a huge potential toreduce CO₂ emissions through innovative electronic systems.The paper will show a possible implementation of a holisticvehicle energy management system including the operating strategy"Free wheeling." Starting from a top-down approach, wehave developed operating strategies that offer the possibility tooptimize the energy usage of the entire system. Energy recuperationand advanced Stop/Start system are the main elements of theoperating strategies.Design of new power net architectures is necessary to tackle therequirements of the new systems. To achieve the same level ofreliability the vehicle systems and components must be adaptedaccordingly to allow engine stop for vehicle speed not equal tozero. The evaluation of the energy management strategies are basedon a "virtual" average CAFE passenger car. This vehicleis investigated in simulating the driving cycles FTP-75 and HWFET.The feasibility of the 35.5 mpg target will be shown

Notes:

Vendor supplied data

Publisher Number:

2011-01-1014

Access Restriction:

Restricted for use by site license