Gm Global Technolgoy Operations, Inc.

Saab Automobile Ab

Thomas William Creech

Scott P Geisler

Flavio Nardi

Brian S Repa

Arne Nabo

Lisa Schreiner

Stefano Marica

Todd H Fast

Methods and apparatus are provided for controlling navigation guidance in a vehicle. The method includes: a) determining a re-route instruction based on a non-executed guidance instruction; b) presenting the re-route instruction; c) determining a non-execution of a re-route instruction; d) repeating steps a) through c) for a pre-determined number of re-route attempts; e) prompting for cancellation of navigation guidance after the pre-determined number of re-route attempts; and f) altering navigation guidance upon acceptance of the prompt for alteration.

Navigation guidance cancellation apparatus and methods of canceling navigation guidance

A method for estimating workload placed on the driver of a vehicle. The method comprises receiving workload estimation data. A driving workload estimate is calculated in response to the workload estimation data. The driving workload estimate is indicative of current and previously occurring conditions. The driving workload estimate is then output.

Driving workload estimation

A method for estimating workload placed on the driver of a vehicle. The method comprises receiving workload estimation data. Driving conditions responsive to the workload estimation data are detected. An impact value of at least one of the driving conditions is calibrated. The impact values are combined to determine a current driving workload estimate. The current driving workload estimate is output.

A method for vehicle information and interaction management. The method comprises receiving vehicle feature data and driver preference data for a vehicle. The method also comprises receiving an information message from the vehicle and a driving workload estimate that is indicative of current and previously occurring conditions. A control signal responsive to said vehicle feature data, said information message, said driver preference data and said driving workload estimate is provided to initiate the activation or disablement of a function of the vehicle.

Vehicle information and interaction management

A method for vehicle information and interaction management. The method comprises receiving vehicle feature data and driver preference data. The method also comprises receiving a driving workload estimate that is indicative of current and previously occurring conditions. A subroutine corresponding to at least one of the vehicle feature data is executed. The subroutine initiates the activation or disablement of a function of a vehicle and is responsive to the driver preference data and the driving workload estimate.

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Clarkston, MI, United States of America

Thomas William Creech