US 9,809,214 B2
Battery state of charge control using route preview data
Wei Liang, Farmington Hills, MI (US); Yanan Zhao, Ann Arbor, MI (US); and Ming Lang Kuang, Canton, MI (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US)
Filed on May 6, 2015, as Appl. No. 14/705,314.
Prior Publication US 2016/0325726 A1, Nov. 10, 2016
Int. Cl. B60W 10/06 (2006.01); B60K 6/48 (2007.10); B60W 10/08 (2006.01); B60W 20/12 (2016.01)
CPC B60W 20/12 (2016.01) [B60K 6/48 (2013.01); B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60W 2510/244 (2013.01); B60W 2550/402 (2013.01); Y02T 10/6221 (2013.01); Y02T 10/6269 (2013.01); Y02T 10/6286 (2013.01); Y10S 903/93 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A vehicle comprising:
a navigation system configured to provide predicted speed and grade profiles;
a traction battery;
an engine; and
a controller programmed to (i) generate engine commands including engine off requests and commands permissive of engine off requests, and, in response to a first engine cycling command based on the profiles being an engine off request and a second engine cycling command derived independent of the profiles being permissive of engine off requests while the engine is on, cause the engine to transition to off and (ii) generate a target state of charge for the traction battery based on the profiles and a base battery power reference independent of the profiles, and, in response to the first engine cycling command defining at least a predetermined number of engine cycles over a route, charge and discharge the traction battery based on the target state of charge and the base battery power reference.