Abstract: A vehicle includes a battery and a controller. The controller is programmed to executed a parameter estimation strategy for the battery during time intervals when the current flowing through the battery is sufficiently dynamic. During periods of generally constant current, the parameters are derived from the last valid parameters from the parameter estimation strategy. During periods of generally constant current in which a battery temperature and/or a state of charge of the battery changes by a predetermined amount, the parameters are derived from historical parameter values.

Abstract: A battery system includes a cell, and an integrated circuit and flexible circuitry on and electrically isolated from a container of the cell. The flexible circuitry is arranged with the cell and integrated circuit to form a dipole antenna that wirelessly transmits signals from the integrated circuit.

Abstract: A power system includes a traction battery, and a rectifier including a pair of diodes, a pair of switches, and a pair of capacitors each in parallel with a different one of the switches such that alternating current input to the rectifier results in alternating voltage having parabolic approaches to maximum magnitude values being input to the rectifier. The maximum magnitude values correspond to a magnitude of voltage output to the traction battery.

Abstract: A system and method are disclosed for charging a depleted battery within a first hybrid vehicle when connected to a second hybrid vehicle using a junction box. The system may include a wire harness having high voltage interlock connectors (HVIL) and high voltage (HV) connectors that connected to both the first vehicle and second vehicle. The system may also include one or more controllers that engage the charged battery to start a first engine within the first vehicle or, alternatively, a second engine within the second vehicle. After the first engine or second engine is started, the charged battery will be disconnected and the depleted battery may be connected using a set of HV contactors. The first engine or the second engine may then be operated to charge the depleted battery. Charging may stop when the depleted battery is charged within a specified SoC range.

Abstract: A battery system has a cell, a substrate mounted on the cell, and monitoring circuitry on the substrate and exclusively powered by the cell. The battery system also has a switch on the substrate electrically between the cell and monitoring circuit, and control circuitry on the substrate. The control circuitry, responsive to a value of a parameter of the cell measured by the monitoring circuitry falling outside a predefined range, opens the switch to electrically disconnect the monitoring circuit from the cell.

Abstract: A system for a vehicle includes a controller and contactor arranged to close responsive to current magnitude through a coil thereof exceeding a first threshold. The controller, following a request to open the contactor, applies current to the coil at a magnitude less than the first threshold for a duration, and responsive to peak current through the contactor during the duration being less than a second threshold, prevents start of the vehicle.

Abstract: A vehicle battery system has a battery including a plurality of series connected cells, a bus bar electrically connected between an adjacent pair of the series connected cells, and circuitry. The circuitry injects a sinusoidal current waveform through the bus bar, obtains a magnitude of a sinusoidal voltage waveform contained by an overall voltage of the bus bar that is caused by the sinusoidal current waveform from a sampled and filtered version of the overall voltage and digital data defining the sinusoidal current waveform, obtains a resistance of the bus bar from the magnitude of the sinusoidal voltage waveform and a measured magnitude of the sinusoidal current waveform, and obtains a magnitude of current through the battery from a DC portion of a spectrum of the overall voltage and the resistance of the bus bar.

Abstract: A vehicle system is provided with a battery and a controller. The battery includes a first module having a first capacity and a second module. The controller programmed to responsive to indication that the second module has been replaced by a new module with a second capacity that is greater than the first capacity for a corresponding state of charge (SOC), adjust a second SOC of the new module such that a maximum SOC value of the new module aligns with a maximum SOC value of the first module. The controller is further programmed to balance the first module and the new module separately.

Abstract: A vehicle assembly includes, among other things, a battery array, and an identifier that is associated with the battery array. The identifier is readable by a control module of an electrified vehicle when the battery array is in an installed position within the electrified vehicle.

Abstract: A vehicle has a battery including a plurality of cells connected in series, and a battery management integrated circuit including a plurality of inputs each being directly electrically connected to a terminal of one of the cells via an electrical path that includes a thse and a resistor connected in series. The battery management integrated circuit farther includes a top input directly electrically connected to a positive output of the battery and configured to receive power from the battery that is defined by a current having a magnitude that is at least an order of magnitude greater than current received by the inputs and a voltage equal to a sum of voltages of all the cells.

Abstract: A charging system includes an inverter configured to receive rectified mains line voltage and current to power a primary coil to induce charge current in a secondary coil of a vehicle. The charging system also includes a controller configured to alter a switching frequency of the inverter based on charge voltage data from the vehicle to cause the inverter to operate to drive a voltage of an energy storage capacitor of a battery charger of the vehicle toward a constant value.

Abstract: A system for monitoring battery cells of a battery includes a capacitor, a processor, and a controller. The controller is configured to connect the capacitor with a first battery cell to charge the capacitor to a voltage of the first battery cell and then (i) connect the capacitor with a second battery cell to form a circuit having an output that is a voltage difference of the capacitor and the second battery cell and (ii) connect the output to the processor for the processor to measure the voltage difference. The voltage difference is the voltage difference between the first battery cell and the second battery cell.

Abstract: An electrically-propelled vehicle includes a traction battery and a conductive charging pad disposed beneath the vehicle and electrically coupled to the battery. The charging pad is configured to transfer power from at least one contact extension disposed at a charge station to charge the battery. A height from ground of the charging pad is configured to cause electrical engagement of the contact extension as a result of the vehicle entering a parking space proximate the charge station.

Abstract: A system for a vehicle includes a trio of ultrasonic sensors, and a controller configured to, responsive to a location of an object identified from a distance between the ultrasonic sensors, a receive time at each of the ultrasonic sensors associated with a same ultrasonic pulse from a transmitter of the object, and an absence of data regarding a send time of the ultrasonic pulse, steer the vehicle to the object.

Abstract: A system for monitoring battery cells of a battery includes a capacitor, a processor, and a controller. The controller is configured to connect the capacitor with a first battery cell to charge the capacitor to a voltage of the first battery cell and then (i) connect the capacitor with a second battery cell to form a circuit having an output that is a voltage difference of the capacitor and the second battery cell and (ii) connect the output to the processor for the processor to measure the voltage difference. The voltage difference is the voltage difference between the first battery cell and the second battery cell.

Abstract: A battery system has a battery cell including a can and tabs, flexible circuits on and electrically isolated from the can, and electrically connected with the tabs, and a monolithic integrated circuit. The monolithic integrated circuit is mounted to the can via thermally conductive adhesive such that the can and monolithic integrated circuit are electrically isolated from one another. The monolithic integrated circuit is also wire bonded to the flexible circuits, and configured to measure and transmit data about the battery cell.

Abstract: An off-board load power management system for an electrified vehicle is provided. The system may include a DC-to-AC inverter for providing power to auxiliary loads. Using a manual selector, an operator may select an amount of power to be allocated for inverter use at all time during vehicle operation. A controller may guarantee the selected amount of power is available for inverter use and control a generator accordingly. The controller may manage the distribution of power from a battery and/or generator to the powertrain and other vehicle accessories to ensure the selected amount for the inverter always remains available.

Abstract: An electrically-propelled vehicle includes a traction battery and a conductive charging pad disposed beneath the vehicle and electrically coupled to the battery. The charging pad is configured to transfer power from at least one contact extension disposed at a charge station to charge the battery. A height from ground of the charging pad is configured to cause electrical engagement of the contact extension as a result of the vehicle entering a parking space proximate the charge station.

Abstract: A system and method for managing communications with a vehicle wireless charging station include a vehicle having a battery configured for wireless charging and a vehicle computing system having a transceiver and a processor programmed to broadcast a signal by the vehicle computing system using the transceiver to establish a communication link with a vehicle wireless charging station in response to a current vehicle location being within a specified range of a previously authorized vehicle wireless charging station. The system and method may include a vehicle HMI to prompt a user for input to authorize communication with a wireless charging station that is not recognized or that has not been previously authorized. Wireless charging related broadcasts may be inhibited when the vehicle is not within a specified range of a known wireless charging station location to conserve energy and reduce potential for unauthorized responses to the vehicle broadcasts.

Abstract: A battery system includes a housing, a battery array inside the housing, a first wiring path that bypasses the battery array, and a second wiring path electrically connected to the battery array. The battery system is adapted to charge a battery pack of an electrified vehicle using AC power, DC power, or both.