US 7,321,825 B2
Method and apparatus for determining vehicle operating conditions and providing a warning or intervention in response to the conditions
Ronald J. Ranalli, Livonia, Mich. (US)
Assigned to Ford Global Technologies, LLC, Dearborn, Mich. (US)
Filed on Oct. 24, 2003, as Appl. No. 10/605,768.
Prior Publication US 2005/0090938 A1, Apr. 28, 2005
Int. Cl. G01C 21/00 (2006.01)
U.S. Cl. 701—205  [701/209; 701/210; 340/995.21; 340/995.23] 16 Claims
OG exemplary drawing
 
1. A control system for a vehicle comprising:
a GPS system generating a vehicle position signal for a vehicle relative to a surface;
a plurality of driver inputs;
a plurality of vehicle sensors each providing a vehicle input; and
a controller coupled to the GPS system, the plurality of driver inputs and the plurality of vehicle inputs, said controller determining a predicted path in response to the plurality of driver inputs and the vehicle inputs, and determining a desired path in response to the GPS system, said controller performing a comparison of the predicted path and the desired path, said controller generating a control signal in response to the comparison,
wherein said controller performs the comparison using colinearity of a confidence level, or a linear regression model with said threshold corresponding to an estimated error.