B60L58/25

System and method for increasing temperature of battery using motor driving system

A system for increasing a temperature of a battery includes an inverter including a plurality of legs each including one pair of switching devices connected in series to each other between opposite ends of the battery and corresponding to a plurality of phases, respectively, a motor including a plurality of coils corresponding to the plurality of phases, respectively, where one end of each of the plurality of coils is connected to a connection node between one pair of switching devices included in a corresponding leg and other ends of the coils are connected to each other, and a controller configured to select two phases of the plurality of phases, and to alternately control an on/off state of switching devices included in two legs in the inverter, corresponding to the two selected phases, at a preset switching frequency to generate alternating current (AC) supplied to the battery.

Devices, systems, and methods for self-heating batteries
11290045 · 2022-03-29 · ·

At least one embodiment is directed to a system including a motor, a battery that provides power to the motor, and control circuitry that provides one or more first current pulses to the motor using power from the battery to cause one or more second current pulses in the battery that heat the battery to a desired temperature while maintaining zero torque in the motor.

Infrared thermal run-away detection for battery packs
11309596 · 2022-04-19 · ·

Systems and methods for identifying thermal run-away events in a battery pack can include using infrared sensors to measure infrared radiation emitted by and reflected by subsets of the battery cells arrayed in a battery pack. Each infrared sensor can generate temperature data based on the received infrared radiation, which includes reflected infrared radiation for several and potentially many individual battery cells aligned in rows or columns within the battery pack. Each infrared sensor can sense the beginning of a thermal run-away event by sensing when an individual battery cell in the array has a temperature exceeding a threshold, and can generate a signal indicative of a thermal run-away event based on the detected excessive temperature.

VEHICLE POWER SUPPLY

A vehicle power supply includes an electric accumulator pack, an electric motor, first and second switches, an output determiner, and a switch controller. The electric accumulator pack includes first and second electric accumulators. The first and second switches are controlled between on- and off-states. The output determiner determines whether the first electric accumulator is in a first output state or a second output state, and whether the second electric accumulator is in the first output state or the second output state. If at least one of the first electric accumulator or the second electric accumulator is in the first output state, the switch controller controls either one of the first and second switches to the on-state, and the other switch to the off-state. If both the first and second electric accumulators are in the second output state, the switch controller controls both the first and second switches to the on-state.

PORTABLE CHARGING CABLE WITH IN-LINE CONTROLLER

A portable electric vehicle support equipment (EVSE) unit is formed as a cord of plural insulated conductors and a flexible outer sheath enclosing said plural insulated conductors. The cord includes an EVSE docking connector on a docking end of the cord and a utility plug on a utility end of the cord, said cord being divided into a docking section terminated at said docking connector and a utility section terminated at said utility connector. The cord further includes an in-line EVSE controller and a housing enclosing said controller, said housing sealed with said flexible outer sheath and disposed at an intermediate section of said cord between said docking and utility sections.

PORTABLE CHARGING CABLE WITH IN-LINE CONTROLLER

A portable electric vehicle support equipment (EVSE) unit is formed as a cord of plural insulated conductors and a flexible outer sheath enclosing said plural insulated conductors. The cord includes an EVSE docking connector on a docking end of the cord and a utility plug on a utility end of the cord, said cord being divided into a docking section terminated at said docking connector and a utility section terminated at said utility connector. The cord further includes an in-line EVSE controller and a housing enclosing said controller, said housing sealed with said flexible outer sheath and disposed at an intermediate section of said cord between said docking and utility sections.

TRACTION BATTERY PACK THERMAL EVENT DETECTION

A method of detecting a thermal event associated with a battery assembly of an electrified vehicle includes, among other things, obtaining a temperature reading from a sensor associated with an area of the battery assembly, assessing whether the sensor is flagged with a first identifier or a second identifier. The first identifier indicates that the temperature reading is reliable. The second identifier indicates that the temperature reading is unreliable. If the sensor is flagged with the first identifier, the method detects a thermal event associated with the battery assembly based on the temperature reading from the sensor.

TRACTION BATTERY PACK THERMAL EVENT DETECTION

A method of detecting a thermal event associated with a battery assembly of an electrified vehicle includes, among other things, obtaining a temperature reading from a sensor associated with an area of the battery assembly, assessing whether the sensor is flagged with a first identifier or a second identifier. The first identifier indicates that the temperature reading is reliable. The second identifier indicates that the temperature reading is unreliable. If the sensor is flagged with the first identifier, the method detects a thermal event associated with the battery assembly based on the temperature reading from the sensor.

Method for charging a starter battery and charging device for charging a starter battery
11225171 · 2022-01-18 · ·

A method for charging a starter battery of a vehicle is disclosed, wherein the vehicle has at least one movable opening element and a motor unit, which is coupled to the opening element and is operable in a motor-powered drive mode to drive the opening element and in a generator mode to generate an electrical voltage, said method comprising: detecting the generator mode of the motor unit using the electrical voltage generated by the motor unit, comparing the generated electrical voltage with a specified voltage value, and establishing an electrical connection from the motor unit to the starter battery to charge the starter battery, if the generated electrical voltage is greater than the voltage value.

Method for charging a starter battery and charging device for charging a starter battery
11225171 · 2022-01-18 · ·

A method for charging a starter battery of a vehicle is disclosed, wherein the vehicle has at least one movable opening element and a motor unit, which is coupled to the opening element and is operable in a motor-powered drive mode to drive the opening element and in a generator mode to generate an electrical voltage, said method comprising: detecting the generator mode of the motor unit using the electrical voltage generated by the motor unit, comparing the generated electrical voltage with a specified voltage value, and establishing an electrical connection from the motor unit to the starter battery to charge the starter battery, if the generated electrical voltage is greater than the voltage value.