Abstract: A vehicular apparatus receiving power from a battery mounted on a vehicle includes a main controller unit, a defect detection unit, and an operation controller unit. The operation controller unit is configured to turn off an operation of a target device among a plurality of devices controlled by the main controller unit in response to an occurrence of a voltage drop in which the voltage from the battery is equal to or lower than a predetermined threshold value. In response to turning off the operation of the target device due to the voltage drop, the operation controller unit is configured to transmit a notification indicating turning off of the operation of the target device to the defect detection unit. Upon receiving the notification, the defect detection unit is configured to cancel a determination of a defect relative to the target device.

Abstract: A vehicle power supply device converts power from high voltage to low voltage by selectively connecting a predetermined power storage element group to a low voltage electric load from a high voltage power supply formed by connecting power storage elements in series. A leakage current from the high voltage power supply is measured during the dead time period when the power storage element group is not connected to the low voltage electric load. When the value exceeds a predetermined value, the connection between the power storage element group and the low-voltage electric load is interrupted, so that electric shock is prevented.

Abstract: A vehicle power supply device converts power from high voltage to low voltage by selectively connecting a predetermined power storage element group to a low voltage electric load from a high voltage power supply formed by connecting power storage elements in series. A leakage resistance from the high voltage power supply to the ground is measured when the high voltage circuit is cut by the cutoff means placed between the high voltage power supply and the high-voltage load device. When the value less than a predetermined value, the connection between the high voltage power supply and the low-voltage load device is interrupted, so that electric shock is prevented.

Abstract: Connection and control concepts for battery packs in a high voltage battery assembly are provided. Parallel, modular configurations permit improved safety, voltage balancing, and redundancy, improving operation and reliability of an associated high voltage electrical vehicle such as a heavy-duty truck.

Abstract: A busbar for a battery system according to an exemplary embodiment of the present invention includes: a first bar member and a second bar member which are spaced apart from each other; and a third bar member which connects the first bar member and the second bar member to define a common bar, in which the third bar member is shunt resistance having ohmic resistance and electrically connects the first bar member and the second bar member. In addition, a battery system according to the exemplary embodiment of the present invention includes the busbar.

Abstract: A high-voltage relay system for a vehicle is provided. The system includes a relay, a first contact part positioned between a battery and a power converter, a voltage application unit, and a second contact part positioned between the voltage application unit and the ground. A first resistor is connected, at a first end thereof, in series to a second end of the second contact part and connected, at a second end thereof, to the ground. A controller operates the relay in response to an ON/OFF control signal to short-circuit or open the contacts at both ends of the first contact part or the contacts at both ends of the second and determines whether the relay fails based on the type of the ON/OFF control signal and the voltage value between both ends of the first resistor.

Abstract: A relay circuit includes a relay and a current divider. The relay includes a coil and a contact. The contact is configured to switches on and off a supply of power to a load that is configured to operate with power supplied from a direct-current power supply through conduction of the coil. The current divider is connected between the contact and the load and configured to split a current supplied from the power supply to the load. The current divider incudes a resistor and a capacitor connected in series and grounded.

Abstract: A power system for a vehicle includes a control module, a low-voltage battery electrically coupled to the control module, a high-voltage battery electrically coupled to the control module, an engine electrically coupled to the high-voltage battery, and a computer. The computer is programmed to, while the vehicle is in an off state, in response to a pending download to the control module, provide power to the control module with one of the low-voltage battery, the high-voltage battery, or the engine upon determining whether the low-voltage battery and the high-voltage battery have sufficient charge to power the control module for the download.

Abstract: A power supply system includes a first power circuit coupled to a capacity-type first battery and a drive motor, a second power circuit coupled to an output-type second battery, a voltage converter that converts a voltage between the first power circuit and the second power circuit, and a converter ECU and a management ECU that operate the voltage converter to control converter passing power in the voltage converter. The management ECU sets, when a first SOC that is a percentage of charge in the first battery is less than a predetermined lamp-on threshold and a first maximum output P1_lim that is a maximum output of the first battery is more them a predetermined output threshold Pe0 maximum converter passing power Pcnv_max corresponding to maximum power with respect to the converter passing power to 0 to prohibit discharging of the second battery.

Abstract: A power battery cooling system of an electric vehicle, including: a cooling circuit configured for cooling a power battery of the electric vehicle; a solar sunroof; and a sunroof control unit configured for controlling the operation of the cooling circuit and the electric energy output of the solar sunroof; wherein the sunroof control unit is configured to start a power battery cooling operation based on the solar sunroof in the condition that the power battery is not in a high voltage output state and the temperature of the power battery is higher than a temperature threshold, the power battery cooling operation including: controlling the solar sunroof to output electric energy to the cooling circuit so that the cooling circuit performs the cooling of the power battery using the electric energy from the solar sunroof.

Abstract: Disclosed herein is a switch device including a switch element coupled between a power supply terminal and an output terminal, and an output abnormality detection circuit that. When an output current flowing during a turn-on period of the switch element is smaller than a threshold value, the output abnormality detection circuit detects an occurrence of an output abnormal condition, and increases a turn-on resistance of the switch element to determine which of a load-open condition and a short-to-power-supply-voltage condition is occurring at the output terminal on a basis of an output voltage at the output terminal.

Abstract: A power supply unit for an aerosol inhaler, which includes a power supply configured to discharge electricity to a load that is configured to heat an aerosol generation source and has a correlation between temperature and electric resistance values, includes: a first element connected in series to the load and having a first electric resistance value; a second series circuit that includes a second element having a second electric resistance value, and a third element connected in series to the second element and having a third electric resistance value, the second series circuit being connected in parallel with a first series circuit including the load and the first element; and an operational amplifier connected to the first series circuit and the second series circuit. The first electric resistance value is less than an electric resistance value of the load.

Abstract: A switch system includes a system main relay, a temperature measuring unit, and a controller. The system main relay is configured to electrically connect a battery and an onboard device to each other by turning on a contact point, and to electrically disconnect the battery and the onboard device by turning off the contact point. The temperature measuring unit is configured to measure temperature of the contact point of the system main relay. The controller is configured to cause the system main relay to repeatedly turn on and off the contact point at a predetermined timing, (i) when the temperature of the contact point of the system main relay is a predetermined temperature or more or (ii) when an amount of rise in the temperature of the contact point is a predetermined amount or more.

Abstract: A battery system (10) for use on a vehicle electrical system (50) of a motor vehicle, comprising a negative pole (21), a positive pole (22), a battery module (5) and a switching unit (60) that has at least one actuatable switch and a current sensor (65) for measuring a battery current (IB) flowing through the battery system (10) is disclosed. The switching unit (60) is operable in a safety mode in which the at least one switch and the current sensor (65) interact such that the battery current (IB) is limited to a prescribed maximum value or is interrupted for a prescribed maximum period of time if the battery current (IB) exceeds a prescribed limit value and hence starting of the motor vehicle is prevented.

Abstract: A monitoring method includes, among other things, within an electrified vehicle, providing an accessory battery that is configured to power an electrical bus, and a traction battery that is configured to power the electrical bus. The method further includes loading the electrical bus with electrical loads of the electrified vehicle when an amount of power provided to the electrical bus by the traction battery is reduced. After the loading, the method compares an electrical parameter of the accessory battery to a threshold value to assess a condition of the accessory battery.

Abstract: A vehicle electric power supply apparatus includes a first electric power supply system, a second electric power supply system, an electric power fuse, a switch, a starter relay, an occupant operated unit, a starter control unit, and a switch control unit. The switch is controlled to be in one of an electrically-conductive state and a cutoff state. The starter relay is controlled to be in one of an electrically-conductive state or a cutoff state. The occupant operated unit is operated by an occupant. The starter control unit outputs an ON signal and the switch control unit outputs an OFF signal when the occupant operated unit is operated. The ON signal allows the starter relay to be controlled in the electrically-conductive state. The OFF signal allows the switch to be controlled in the cutoff state.

Abstract: A battery module according to an embodiment includes a battery; a breaker that switches electrical connection of an output line from the battery to outside; a power source switch circuit that receives an internal source voltage supplied from the battery, an external source voltage supplied from an external power source, and an boot signal from outside, and switches a source of power that supplies source voltage from the external power source to the battery when at least one of the external source voltage and the boot signal is at a second level; and a control circuit that uses, as power supply, the source voltage that is output from the power source switch circuit, and controls operation of the breaker and of the power source switch circuit.

Abstract: An ECU included in a vehicle performs a first charging control when a minimum output voltage of a direct-current (DC) charger obtained through an information exchange process is less than or equal to a lower limit charging voltage for a power storage device, and performs a second charging control when the minimum output voltage is higher than the lower limit charging voltage of the power storage device. In the second charging control, initially, the ECU electrically connects a pre-charge circuit to a charging path from the DC charger to the power storage device, starts DC charging, and checks a voltage that is actually applied from the DC charger to the vehicle. If a voltage applied from the DC charger to the vehicle is a value corresponding to the voltage of the power storage device, the ECU permits the DC charging and performs the first charging control.

Abstract: A method for detecting an internal short circuit in a first electrical energy storage unit of an electrical energy storage device is described, wherein the electrical energy storage device comprises at least two electrical energy storage units including a first electrical energy storage unit and a second electrical energy storage unit electrically connected in parallel in the electrical energy storage device, the method including recording an electric current flowing into or out of the first electrical energy storage unit, recording an electric current flowing into or out of the second electrical energy storage unit, determining a short-circuit current in the first electrical energy storage unit based on the at least two recorded electric currents, and detecting an internal short circuit when the magnitude of the short-circuit current exceeding a predefined short-circuit current threshold.

Abstract: A power conversion device for charging a battery of a vehicle may include the battery, a motor for receiving a battery power source from the battery, a power controller for controlling the motor to change the battery power source into charging power, and a charging controller for selectively performing a charging power supply control for supplying the charging power to the outside and a charging power receipt control for receiving external power.

Abstract: The present invention discloses a low voltage battery protector, interposed between a battery and a cable connected thereto, including: a main body having an upper end, a lower end substantially opposite to the upper end, and a frame connecting the upper end to the lower end. The frame further includes a mounting surface. The protector incudes a first contact extending from the top end; a supporting portion extending substantially perpendicularly from the mounting surface; a second contact assembled with the supporting portion. The second contact includes a connecting portion pivotally assembled with the supporting portion. Such a low voltage battery protector provides the user with great flexibility and convenience to choose an adaptive position to mount the protector, and provides the user with more space to mount the protector.

Abstract: The present disclosure provides a programmable controller for monitoring battery performance and usage at a remote pump jack location. The disclosure provides an energy efficient controller and display system which allows the operator to quickly and accurately test batteries in an installation. It uses programmable logic to switch between system modes and decide which battery supplies power to the output. Further it will sense any high voltages at and disable the input from the faulty source. Further, the programmable logic is designed such that the mode selection process is automatic when the system is in operation. The purpose is to elongate battery and connected equipment life by preventing battery failure. The present disclosure also provides an easy and economical method of communicating potential battery failure and status to an operator via cell phone communication.

Abstract: A learning algorithm for controlling a battery voltage, which reduces an error of the battery voltage by using a power generation voltage of an alternator while a vehicle is driven includes steps of: calculating, by a processor, a first error voltage indicating a difference between the power generation voltage of the alternator and the battery voltage after the vehicle has been assembled; calculating, by the processor, a second error voltage indicated by updating the difference between the power generation voltage of the alternator and the battery voltage according to an output amount of the alternator and a driving time; and calculating, by the processor, a line-to-line voltage between the alternator and the battery by adding the first error voltage and the second error voltage. This learning algorithm is advantageous since there is no side effect in voltage control such as open-loop control and there is a low voltage control error.

Abstract: An over-voltage comparator and shutdown circuit for a power converter, comprising at least a first voltage divider connected between ground and a monitored voltage, the voltage divider including a first resistor and a second resistor, a switch mode regulator connected to a primary switch of the power converter, and a first threshold comparator, wherein a monitored input of the first threshold comparator is connected between the first resistor and the second resistor, an anode of the first threshold comparator is connected to ground, and a cathode of the first threshold comparator is connected to the switch mode regulator, and wherein the monitored voltage is voltage at an end of a primary winding of the power converter. An auxiliary output circuit of the power converter may be provided having a first output providing the monitored voltage and a second output providing power to the switch mode regulator.

Abstract: An energy storage system includes an energy storage device; a current cutoff unit configured to cut off current of the energy storage device; a communication connector to be connected with an external communication connector; a detection terminal provided to the communication connector; and a control unit configured to control the current cutoff unit based on a connection state of the detection terminal of the communication connector when the communication connector is connected with the external communication connector. In a method of monitoring an energy storage device mounted on a vehicle, when a communication connector including a detecting terminal is connected with an external communication connector of the vehicle, current between the energy storage device and the vehicle is cut off based on a connection state of the detection terminal.

Abstract: An ECU performs a process including the steps of: acquiring a lowest temperature TBmin and a temperature TC of cooling air; acquiring a fan airflow volume; setting a cooling coefficient; calculating a resistance value Rtmin; calculating a root-mean-square value of a current; setting TBoffset1; calculating a resistance value Rtmax; calculating a temperature index Ftmax; calculating a temperature index Ftmin; calculating an evaluation function ?F; calculating a maximum current correction gain G; and calculating a maximum current value Imax.

Abstract: An electrical power supply device configured to interface with a start-stop controller within a vehicle includes a DC-DC power convertor receiving an input voltage and producing a first output voltage or a second output voltage that is less than the first output voltage and a device controller in communication with the DC-DC power convertor. The device controller has one or more processors and memory. The memory includes instructions which causes the device controller to command the DC-DC power convertor to output the first output voltage when the device controller receives a run signal from the start-stop controller or detects that the input voltage is above a voltage threshold or output the second output voltage when the device controller receives a stop signal from the start-stop controller or detects that the input voltage is below a voltage threshold. A method of operating the electrical power supply device is also presented.

Abstract: A system includes a computer including a processor and a memory, the memory including instructions executable by the processor to identify a degraded state of a vehicle component when a component usage exceeds a first threshold and a weather datum exceeds a second threshold, and then actuate the vehicle component in response to the degraded state.

Abstract: A vehicle includes a starter motor having a dedicated power source, an electric machine, and a controller configured to, responsive to a command for the motor to start an engine, open a switch to isolate the motor and source from a network electrically connected with the machine, and responsive to voltages on both sides of the switch falling within a predetermined range, close the switch to charge the source.

Abstract: A miniature fast charging and discharging circuit, including a power supply, a pre-stage boost auxiliary circuit, a bidirectional flyback circuit and an output capacitor. Input and output terminals of the pre-stage boost auxiliary circuit are respectively connected to the power supply and an input terminal of the bidirectional flyback circuit. The output capacitor is an output terminal of the bidirectional flyback circuit. The pre-stage boost auxiliary circuit includes a third switching MOSFET and a primary high-voltage storage capacitor connected in parallel with the power supply. When energy of the bidirectional flyback circuit reversely flows, the current cannot flow from the drain to the source, the current is stored in the primary high-voltage storage capacitor.

Abstract: Systems and methods for operating an internal combustion engine that includes an electric turbocharger are described. The systems and methods may operate the electric turbocharger in a motor mode or a generator mode. The electric turbocharger may be operated in a generator mode to reduce an amount of time to activate electric turbocharger in a motor mode.

Abstract: A vehicle electrical system has a battery monitor configured to measure battery current flowing from a vehicle battery and a power management controller receiving a measured battery current value from the battery monitor. A plurality of controller modules receives the current flowing from the vehicle battery, each controller module being coupled to the power management controller to exchange communication signals. The power management controller detects a key-off state wherein the plurality of controller modules are each configured to invoke a respective reduced-power mode. When the battery load exceeds a sleep threshold during the key-off state then the power management controller resets at least one of the modules to re-invoke the respective reduced-power mode. The resetting can involve cycling a status of an ignition signal from ON to OFF.

Abstract: An information handling system may include at least one processor, a management controller, a serial peripheral interface (SPI) read-only memory (ROM), and at least one logic device. The management controller may be communicatively coupled to the at least one processor and configured to provide out-of-band management of the information handling system. The logic device may be configured to reset the SPI ROM in response to an indication that the SPI ROM is to be reset, and the resetting may include detaching the SPI ROM from a SPI controller, disconnecting a power source from the SPI ROM, in response to a passage of a particular amount of time, reconnecting the power source to the SPI ROM, and re-attaching the SPI ROM to the SPI controller.

Abstract: In a resin vehicle body grounding structure, a positive terminal of a battery is connected to positive terminals of a first load and a second load, a negative terminal of the battery is connected to a first grounding structure element, a negative terminal of the first load is connected to the first grounding structure element, a positive terminal of an alternator is connected to the positive terminal of the second load, the negative terminal ? thereof is connected to a second grounding structure element, and the negative terminal of the second load is connected to the second grounding structure element.

Abstract: The present invention realizes a relay device that can prevent malfunction due to occurrence of reverse flow of current in any of paths. A control unit that is provided in a relay device functions as a switching control unit, keeps an ON state of a first relay unit and a second relay unit if both of currents flowing through a first conduction path and a second conduction path flow in a normal direction (direction toward a load, and if the current flows in the reverse direction in one of the paths, switches one relay unit that is provided in a reverse flow path in which the current flows in a reverse direction to an OFF state.

Abstract: A battery remaining capacity display device (30) comprises remaining capacity calculators (32A, 32B), a combined remaining capacity calculator (33), a display controller (35), a display instruction component (36), and a display component (34). The display controller (35) controls the display of the individual remaining capacities and the display of the total remaining capacity. The display instruction component (36) instructs the display controller (35) to display or not to display. The display component (34) displays the individual remaining capacities and the total remaining capacity. The display controller (35) performs control so that the individual remaining capacities and/or the combined remaining capacity is displayed on the display distribution (34) according to an instruction from the display instruction component (36).

Abstract: Various embodiments may relate to a lighting system including a string of light sources connected in series between a first terminal and a second terminal, wherein at least one electrical contact of the string of light sources is accessible. The system further includes a protection circuit that protects the light sources from an electrostatic discharge applied to the electrical contact that is accessible. In particular, the protection circuit includes at least one TVS diode or set of antiparallel diodes connected to the second terminal, and for each electrical contact a respective capacitor connected between the respective electrical contact and a TVS diode or set of antiparallel diodes, in such a way that an electrostatic event applied to an electrical contact is discharged through the respective capacitor and the respective TVS diode or set of antiparallel diodes towards the second terminal.

Abstract: A vehicle body structure includes: a recess formed in a rear floor panel of a trunk of a vehicle; a drive power supply device that supplies power to drive the vehicle; and an auxiliary power supply device that supplies power to auxiliary machinery mounted on the vehicle, wherein the auxiliary power supply device is configured as an auxiliary power supply device structure by being fixed to a pedestal formed in the recess, and the drive power supply device is disposed side by side in a vehicle width direction with the auxiliary power supply device in the recess, and the auxiliary power supply device structure has a rear end positioned behind a rear end of the drive power supply device in a vehicle front-rear direction.

Abstract: A safety-relevant system (S) in a vehicle comprises an electrical unit (EE) with at least one signal line input (SE). The signal line input (SE) is connected to a signal line. The electrical unit (EE) additionally comprises a supply connection (VA) for feeding the electrical unit (EE) with electrical energy. For supplying electrical energy to the electrical unit (EE), the signal line is in addition electrically coupled to the supply connection (VA) of the electrical unit (EE).

Abstract: A method for controlling a pressure inside a fuel tank system on board a vehicle, the fuel tank system having a fuel tank and a venting circuit having at least one controllable pressure relief valve, the vehicle having a source of energy adapted to activate said at least one pressure relief valve so as to move it from a closed position to a pressure relief position. The method entails: detecting a key off event indicative of the vehicle shut-down; determining an amount of energy available at the source of energy; starting at least one pressure relief operation by verifying whether the amount of energy available is lower than a first predetermined threshold amount and, if the verification is positive, activating the at least one pressure relief valve; and terminating the at least one pressure relief operation.

Abstract: A battery management method includes recording output information associated with a discharging of a battery unit, determining output pattern information based on the recorded output information, determining an adjusted cutoff physical quantity of the battery unit based on the determined output pattern information, and changing a cutoff physical quantity of the battery unit to the adjusted cutoff physical quantity.

Abstract: Aspects of the present disclosure include arrays of motion sensors that may be used to monitor a space to determine occupancy characteristics of the space, such as whether or not the space is occupied and the number of people located within the space. The array of motion sensors may be operatively connected to one or more building system components, such as lighting and HVAC equipment and can be used for adjusting an operating condition of the building system component based on whether a space is occupied.

Abstract: A modular power system is configured to supply configurable power to a load. The system includes battery submodules, each having at least one submodule circuit that is configured to replaceably connect one or more of a plurality of battery cells to a submodule positive bus and a submodule negative bus. The system further includes a power output that is in operable connection with each of the one or more battery submodules. The power output is configured to receive electrical power transmission from one or more of the plurality of battery cells, via the one or more battery submodules. The power output is further configured to transmit electrical power to the load. The system further includes a configuration circuit configured to interconnect each of the one or more battery submodules, operably connect the one or more battery submodules to the power output, and reconfigure characteristics of electrical power output.

Abstract: A battery device is provided. The battery device includes: a battery module, a protection device, a battery management circuit, and a battery protection circuit. The battery module includes one or more battery cells. The battery management circuit is for managing the protection device and charging and discharging of the battery module. When the battery device is in a charging mode, the battery protection circuit periodically checks and calculates a direct current internal resistance (DCIR) of the battery module, and determines a current operation temperature of the battery module and a temperature range corresponding to the current operation temperature. When the battery protection circuit determines that the DCIR is greater than a predetermined multiple of a first threshold corresponding to the temperature range, the battery protection circuit informs the battery management circuit to cut off the protection device.

Abstract: A first power supply line and a second power supply line are connected to a load device. A power-supply control device supplies power of a first electrical storage device to the load device via the first power supply line. The power-supply control device supplies power of a second electrical storage device to the load device via the second power supply line. A fuse and a relay of the power-supply control device constitute a first current path between the first electrical storage device and the load device. A fuse and a relay of the power-supply control device constitute a second current path between the second electrical storage device and the load device. A control circuit detects the direction of current on the first current path and the second current path, and detects whether there is a short-circuit between the first power supply line and the second power supply line.

Abstract: The present disclosure provides a programmable controller for monitoring battery performance and usage at a remote pump jack location. The disclosure provides an energy efficient controller and display system which allows the operator to quickly and accurately test batteries in an installation. It uses programmable logic to switch between system modes and decide which battery supplies power to the output. Further it will sense any high voltages at and disable the input from the faulty source. Further, the programmable logic is designed such that the mode selection process is automatic when the system is in operation. The purpose is to elongate battery and connected equipment life by preventing battery failure. The present disclosure also provides an easy and economical method of communicating potential battery failure and status to an operator via cell phone communication.

Abstract: A discharge control device controls a discharge bypass circuit for discharging a charge in a capacitor provided in a drive device for a motor that rotates wheels of a vehicle at time of a collision of the vehicle. The discharge control device includes a control circuit that makes the discharge bypass circuit start discharge if an induced voltage by the motor surpasses a predetermined threshold.

Abstract: An electrical system includes a contactor having a pair of contacts and a coil configured to electrically close and open the contacts. The electrical system also includes a high voltage (“HV”) circuit including a power supply electrically connected to at least one of the contacts of the contactor. The electrical system further includes a low voltage (“LV”) circuit electrically connected to the coil and configured to selectively energize the coil of the contactor. A disconnect mechanism is coupled with the LV electrical circuit and operable to electrically open the LV electrical circuit to actuate electrical opening of the contacts of the contactor.

Abstract: In a resin vehicle body grounding structure, a positive terminal of a battery is connected to positive terminals of a first load and a second load, a negative terminal of the battery is connected to a first grounding structure element, a negative terminal of the first load is connected to the first grounding structure element, a positive terminal of an alternator is connected to the positive terminal of the second load, the negative terminal ? thereof is connected to a second grounding structure element, and the negative terminal of the second load is connected to the second grounding structure element.

Abstract: An onboard electrical system for a motor vehicle includes a storage device with at least one first battery pack and a plurality of electrical loads supplied from the storage device. At least one control unit is configured to control the consumption of electrical energy by the remaining electrical loads. A main switch is controlled by the control unit and an auxiliary switch that can be manually activated, so as to connect the control unit with the first battery pack and activate the control unit to send a close command to the main switch.