US Patent No. 9,296,301

ENVIRONMENT-AWARE REGENERATIVE BRAKING ENERGY CALCULATION METHOD


Patent No. 9,296,301
Issue Date March 29, 2016
Title Environment-aware Regenerative Braking Energy Calculation Method
Inventorship Yonghua Li, Ann Arbor, MI (US)
Assignee Ford Global Technologies, LLC, Dearborn, MI (US)

Claim of US Patent No. 9,296,301

1. A method of operating a vehicle, comprising:
determining a proposed vehicle trip route;
during planning the proposed vehicle trip route, calculating a total amount of discounted regenerative energy available for
the proposed trip route based on static and dynamic physical conditions extending over the proposed trip route and base regenerative
braking parameters for the vehicle, said calculation comprising estimating ire a total amount of discounted regenerative energy
to be generated from regenerative braking over the entire proposed trip route, the discounted regenerative energy at any point
along the proposed trip route calculated by discounting an amount of regenerative energy with respect to a base regenerative
braking energy at any point along the proposed trip route, the base regenerative braking energy at any point along the proposed
trip route determined from respective static physical conditions predicted to be present at any point along the route, the
discounting determined from respective dynamic physical conditions predicted to be present at any point along the proposed
trip route, the total amount of discounted regenerative energy estimated to be generated further comprising using regenerative
calibration information for the vehicle, the estimation prior to travelling along the proposed trip route; and,

implementing regenerative braking of the vehicle along said proposed trip route using the discounted regeneration energy.