Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: An electronic concentration control system in which a first exhaust gas composition sensor located in an exhaust pipe downstream from a catalytic converter is connected to an input to a P.I. circuit which generates a control output signal comprising a succession of opposing triangular ramps. The system includes a second exhaust gas composition sensor located in the exhaust pipe upstream from the catalytic converter generating a signal which is fed to a proportional integral circuit whose integrating and multiplying coefficients are altered on the basis of the control signal. The system includes a diagnostic circuit which checks the efficiency of the first and second sensors.

Abstract: An electronic concentration control system in which a first exhaust gas composition sensor located in an exhaust pipe downstream from a catalytic converter is connected to an input to a P.I. circuit which generates a control output signal comprising a succession of opposing triangular ramps. The system includes a second exhaust gas composition sensor located in the exhaust pipe upstream from the catalytic converter generating a signal which is fed to a proportional integral circuit whose integrating and multiplying coefficients are altered on the basis of the control signal.