Abstract: A system comprising a computer including a processor and a memory, the memory including instructions such that the processor is programmed to: determine whether a difference between a friction coefficient label and a determined friction coefficient corresponding to an image depicting a surface is greater than a label threshold; modify the determined friction coefficient to equal the friction coefficient label when the difference is greater than the label threshold; and retrain a neural network using the image and the friction coefficient label.

Abstract: A vehicle includes one or more controllers, programmed to responsive to detecting a mismatch between a biometric information of a user collected via a biometric sensor and a biometric record, send a lockup signal to a mobile device enrolled with the vehicle to lock an application; and responsive to successfully performing an authentication through an interaction with the application in a lockup mode, send an unlock signal to the mobile device to unlock the application.

Abstract: A vehicle includes one or more controllers, programmed to responsive to detecting a mismatch between a biometric information of a user collected via a biometric sensor and a biometric record, send a lockup signal to a mobile device enrolled with the vehicle to lock an application; and responsive to successfully performing an authentication through an interaction with the application in a lockup mode, send an unlock signal to the mobile device to unlock the application.

Abstract: A parameter estimation system includes a first coil configured to be loosely inductively coupled to a second coil. A controller is programmed to output parameters of the first coil and second coil. The controller is programmed to estimate the parameters based on voltage and current measurement from only the first or the second coil. The voltage and current measurements may be used in a Kalman filter. In some configurations, the controller is further programmed to command a short circuit between terminals of the second coil and apply a test voltage to the first coil. The first coil may be part of a vehicle charging station and the second coil may be part of a vehicle. The parameters may be utilized to control charging of the vehicle.

Abstract: Systems to wirelessly power transfer to a tailgate are disclosed. An example disclosed vehicle includes a transmitting circuit in a body of the vehicle configured to transmit power via wireless capacitive transfer. The example vehicle also includes a receiving circuit in a tailgate of the vehicle configured to receive power via wireless capacitive transfer.

Abstract: A closed-loop system may include a plant (an elctric machine requiring control) and a fractional-order proportional-resonant controller. The fractional-order proportional-resonant controller may have an order greater than zero and less than or equal to one. The order for the fractional-order proportional-resonant controller may be selected to yield a target amplitude and target slope for frequency response. The frequency response may be such that a steady-state error associated with a speed of the electric machine is inversely proportional to the target amplitude and less than a predetermined threshold. The order of the controller may be 0.9.

Abstract: A closed-loop system may include a plant (an electric machine requiring control) and a fractional-order proportional-resonant controller. The fractional-order proportional-resonant controller may have an order greater than zero and less than or equal to one. The order for the fractional-order proportional-resonant controller may be selected to yield a target amplitude and target slope for frequency response. The frequency response may be such that a steady-state error associated with a speed of the electric machine is inversely proportional to the target amplitude and less than a predetermined threshold. The order of the controller may be 0.9.

Abstract: Systems to wirelessly power transfer to a tailgate are disclosed. An example disclosed vehicle includes a transmitting circuit in a body of the vehicle configured to transmit power via wireless capacitive transfer. The example vehicle also includes a receiving circuit in a tailgate of the vehicle configured to receive power via wireless capacitive transfer.

Abstract: A parameter estimation system includes a first coil configured to be loosely inductively coupled to a second coil. A controller is programmed to output parameters of the first coil and second coil. The controller is programmed to estimate the parameters based on voltage and current measurement from only the first or the second coil. The voltage and current measurements may be used in a Kalman filter. In some configurations, the controller is further programmed to command a short circuit between terminals of the second coil and apply a test voltage to the first coil. The first coil may be part of a vehicle charging station and the second coil may be part of a vehicle. The parameters may be utilized to control charging of the vehicle.