Abstract: Systems devices and methods are disclosed for a vehicle power distribution system having a flat wire harness with integrated voltage converters. An example power distribution system includes a battery having a nominal voltage, a plurality of electrical loads, each corresponding to a respective rated voltage, and a flat wire harness. The flat wire harness includes a plurality of wire branches, each configured to couple the battery to a respective electrical load. The flat wire harness also includes a plurality of voltage converters, each integrated into a respective wire branch, configured to provide the respective rated voltage to each electrical load.

Abstract: Systems devices and methods are disclosed for detecting DC arc faults in a high voltage vehicle electrical distribution system. An example vehicle includes a high voltage electronic system comprising a current sensor configured to capture current data and a processor. The processor is configured to generate filtered data by applying a filter to the current data, determine a Hurst exponent based on the filtered data, and responsive to determining a threshold change in the Hurst exponent, detect the presence of a DC arc in the high voltage electronic system.

Abstract: Embodiments include a vehicle power distribution system comprising a vehicle battery having a nominal voltage; a plurality of electric loads, each load being associated with a rated voltage; and an integrated circuit coupled to the vehicle battery and comprising a plurality of solid-state circuitry blocks respectively coupled to the electric loads, each block including a circuit protection system and configured to supply the rated voltage associated with the electric load coupled to the block. Embodiments also includes a vehicle power distribution module comprising an integrated circuit configured to receive a first voltage from a vehicle battery and to supply respective rated voltages to a plurality of electric loads, the integrated circuit comprising a plurality of solid-state circuitry blocks, and each circuitry block including a circuit protection system and being coupled to a respective one of the electric loads.

Abstract: Systems devices and methods are disclosed for a vehicle power distribution system having a flat wire harness with integrated voltage converters. An example power distribution system includes a battery having a nominal voltage, a plurality of electrical loads, each corresponding to a respective rated voltage, and a flat wire harness. The flat wire harness includes a plurality of wire branches, each configured to couple the battery to a respective electrical load. The flat wire harness also includes a plurality of voltage converters, each integrated into a respective wire branch, configured to provide the respective rated voltage to each electrical load.

Abstract: Systems devices and methods are disclosed for detecting DC arc faults in a high voltage vehicle electrical distribution system. An example vehicle includes a high voltage electronic system comprising a current sensor configured to capture current data and a processor. The processor is configured to generate filtered data by applying a filter to the current data, determine a Hurst exponent based on the filtered data, and responsive to determining a threshold change in the Hurst exponent, detect the presence of a DC arc in the high voltage electronic system.

Abstract: A connector with self-powered mating detection is disclosed. An example disclosed connector pair includes a first connector. The example connector pair also includes a piezoelectric sensor attached to the first connector. The example piezoelectric sensor generates a voltage when the first connector and a second connector are mated. The example piezoelectric sensor generates a voltage when the first connector and a second connector are unmated. The example connector pair also includes a memory circuit electrically coupled to the piezoelectric sensor to record a connection event in response to detecting voltage generated by the piezoelectric sensor(s). Additionally, the example connector pair includes an RFID circuit electrically coupled to the memory circuit. The example RFID circuit transmits the connection events.

Abstract: A vehicle power distribution system includes a battery having a nominal voltage, a vehicle electrical load having a supply voltage different than the nominal voltage, and a monolithic solid state relay including integrated circuitry to convert the nominal voltage to the rated voltage and an output configured to selectively energize the vehicle electrical load with the rated voltage in response to a control signal from a vehicle controller applied to an input of the relay. The relay may include a PWM controller to provide a switching signal to a transistor connected to an output filter to step down the nominal voltage of the battery to the rated voltage of the vehicle electrical load. Relay output voltage and current monitoring circuitry may be connected to the PWM controller to provide over current and over voltage protection.

Abstract: Embodiments include a vehicle power distribution system comprising a vehicle battery having a nominal voltage; a plurality of electric loads, each load being associated with a rated voltage; and an integrated circuit coupled to the vehicle battery and comprising a plurality of solid-state circuitry blocks respectively coupled to the electric loads, each block including a circuit protection system and configured to supply the rated voltage associated with the electric load coupled to the block. Embodiments also includes a vehicle power distribution module comprising an integrated circuit configured to receive a first voltage from a vehicle battery and to supply respective rated voltages to a plurality of electric loads, the integrated circuit comprising a plurality of solid-state circuitry blocks, and each circuitry block including a circuit protection system and being coupled to a respective one of the electric loads.

Abstract: A connector with self-powered mating detection is disclosed. An example disclosed connector pair includes a first connector. The example connector pair also includes a piezoelectric sensor attached to the first connector. The example piezoelectric sensor generates a voltage when the first connector and a second connector are mated. The example piezoelectric sensor generates a voltage when the first connector and a second connector are unmated. The example connector pair also includes a memory circuit electrically coupled to the piezoelectric sensor to record a connection event in response to detecting voltage generated by the piezoelectric sensor(s). Additionally, the example connector pair includes an RFID circuit electrically coupled to the memory circuit. The example RFID circuit transmits the connection events.

Abstract: A vehicle power distribution system includes a battery having a nominal voltage, a vehicle electrical load having a supply voltage different than the nominal voltage, and a monolithic solid state relay including integrated circuitry to convert the nominal voltage to the rated voltage and an output configured to selectively energize the vehicle electrical load with the rated voltage in response to a control signal from a vehicle controller applied to an input of the relay. The relay may include a PWM controller to provide a switching signal to a transistor connected to an output filter to step down the nominal voltage of the battery to the rated voltage of the vehicle electrical load. Relay output voltage and current monitoring circuitry may be connected to the PWM controller to provide over current and over voltage protection.