1134 results about "High voltage battery" patented technology

A system includes: an AC-DC converter; and a DC-DC converter, the DC-DC converter including: a first high voltage buck-boost converter having a secondary side connectable to a first high voltage battery; a second high voltage buck-boost converter having a secondary side connectable to a second high voltage battery; a first low voltage buck-boost converter having a secondary side connectable to a first low voltage battery; a second low voltage buck-boost converter having a secondary side connectable to a second low voltage battery; and one or more transformers having a primary side connected to the AC-DC converter and a secondary side connected to each of a primary side of the first high voltage buck-boost converter, a primary side of the second high voltage buck-boost converter, a primary side of the first low voltage buck-boost converter, and a primary side of the second low voltage buck-boost converter.

A system includes: an alternating current (AC) to direct current (DC) converter (AC-DC converter), the AC-DC converter connectable to a line voltage; and a DC to DC converter (DC-DC converter) connected to the AC-DC converter, the DC-DC converter including: a high voltage buck-boost converter having a secondary side connectable to a high voltage battery; a low voltage buck-boost converter having a secondary side connectable to a low voltage battery; and one or more transformers having a primary side connected to the AC-DC converter, a secondary side connected to a primary side of the high voltage buck-boost converter, and a tertiary side connected to a primary side of the low voltage buck-boost converter.

There is provided a vehicle control device including: an inverter that is configured to drive an electric motor; a DC / DC converter that is configured to step down a voltage output from a high voltage battery; a pre-charge circuit including a pre-charge switch; a voltage detector that is configured to detect an input voltage input to the inverter and the DC / DC converter; and a controller. When the input voltage is lower than the input voltage at the time when pre-charge of the inverter is completed, the controller is configured to determine that power supplied from a power supply of the DC / DC converter to the DC / DC converter is not normally stopped.

A direct current fast charging (DCFC) control system for a range extended electrified vehicle (REEV) includes a set of DCFC connectors electrically connecting a high voltage battery system of an electrified powertrain of the REEV to a charging port of the REEV and a control system configured to determine an ambient temperature external to the REEV, access a temperature model configured to model a temperature associated with the set of DCFC connectors, wherein the temperature model accounts for heat energy generated by an engine of the electrified powertrain, determine, using the temperature model, a modeled temperature associated with the set of DCFC connectors, and control, based on the ambient temperature and the modeled temperature associated with the set of DCFC connectors, a DCFC current provided by an external DCFC station to a high voltage battery system via a charging port and the set of DCFC connectors.

The invention relates to an on-board electrical system (1) for a vehicle, comprising a high-voltage on-board electrical system (2) with a high-voltage battery (HVB) and a low-voltage area with an on-board electrical system channel (EBN) which is designed as a comfort on-board electrical system (EBN), wherein the comfort on-board electrical system (EBN) is connected to the high-voltage on-board electrical system (2) via a DC / DC converter (DCDC2) and is configured to supply static loads (L1), wherein a low-voltage battery (LVB1) is arranged in the comfort on-board electrical system (EBN), wherein the on-board electrical system (1) is designed to be expandable by means of further on-board electrical system channels (SBN1, SBN2).

A motor vehicle traction battery arrangement includes two cooling plates respectively disposed in a horizontal plane and a high-voltage battery module. The lower and upper horizontal walls of which are cooled directly by the cooling plates and which encases a plurality of identical rectangular battery cells in a rigid battery module housing. The battery cells are all configured such that they are plate-like and elongated, are parallel to one another in vertical planes (y,z) and each includes two small-area vertical end walls, two large-area vertical side walls and two medium-area horizontal walls. On its end face, each battery cell includes an anodic connecting element and a cathodic connecting element. At least two similar cell stacks including a same plurality of battery cells are provided, and are stacked such that their battery cell side walls adjoin one another. The battery cell horizontal walls directly adjoin a cooled battery module horizontal wall.

The invention provides a low-cost series high-voltage battery management method and system based on wireless communication. The method comprises the following steps: calculating the residual life and the capacity attenuation amount of each single battery according to aging capacity data and the historical cycle index; generating a final balance control parameter according to a comparison result of the residual life of each single battery and a preset life threshold value, and dynamically adjusting a compensation parameter of each single battery according to the capacity attenuation and the state data of each single battery; and transmitting the final equalization control parameters and the adjusted compensation parameters of all the single batteries to a control circuit of the high-voltage battery pack in a double-antenna switching mode, so that the control circuit performs dynamic equalization management on the high-voltage battery pack according to the final equalization control parameters and the adjusted compensation parameters of all the single batteries. According to the technical scheme, the service life is dynamically predicted through monitoring data, active management of the battery pack is achieved through double-antenna transmission intelligent equalization parameters, and performance and safety are improved.

A route optimization system for a battery electric vehicle (BEV) includes a controller programmed to perform the following operations. Determine a navigational route to a destination. Determine a predicted intelligent energy consumption of the BEV based on a set of vehicle operating conditions. Determine a trip estimated energy consumption based on the navigational route and the predicted intelligent energy consumption. If the trip estimated energy consumption is greater than a remaining energy in the high voltage battery, determine an electric vehicle supply equipment (EVSE) charging location along the navigational route. Determine an updated trip estimated energy consumption that accounts for addition of the EVSE charging location to the navigational route. Propose, to the user, an updated navigational route including the EVSE charging location if the remaining energy in the high voltage battery is sufficient to account for the addition of the EVSE charging location to the navigational route.

A multifunctional unified structure thermal plate and system for supporting a plurality of battery cells included as part of a high voltage battery pack. The plate may include a bottom plate and a plurality of crossbeams configured for supporting the battery cells, with the bottom plate and the crossbeams together being from as a monolithic, one-piece structure.

A power supply system and method of a server, an electronic device, and a storage medium are provided. By means of cooperative work of main circuit structures such as a high-voltage battery power master control unit, battery string management and control units, and power conversion string management and control units, power information of each subsystem in the power supply system is collected and analyzed in real time, and the high-voltage battery power master control unit can also issue a corresponding control instruction to each subsystem according to the analysis result so as to realize power control of each subsystem, thereby controlling the total output power of the server.

The invention relates to an electrical traction network (1) for a motor vehicle, comprising a separately excited synchronous machine (2), a pulse-controlled inverter (3), a high-voltage battery (4), a DC / DC converter (6) and a charger (5), wherein the charger (5) has a mains connection (9) for an external AC voltage network, wherein the charger (5) is connected to AC voltage outputs of the pulse-controlled inverter (3) via first switching elements (S1), wherein the AC voltage outputs of the pulse-controlled inverter (3) are connected to the phases of the synchronous machine (2) via second switching elements (S2), wherein the DC voltage connections (HV+_PWR, HV-_PWR) of the pulse-controlled inverter (3) and an output of the DC / DC converter (6) are connected to the high-voltage battery (4) via third switching elements (S3), wherein the inputs of the DC / DC converter (6) are connected to the DC voltage connections (HV+_PWR, HV-_PWR) of the pulse inverter (3),wherein fourth switching elements (S4) are arranged between the output of the DC / DC converter (6) and two half-bridges of the DC / DC converter (6), wherein the DC / DC converter (6) is connected to a rotor winding of the synchronous machine (2) via fifth switching elements (S5), and a method for operating such an electrical traction network.

Embodiments for a battery pack for an electric marine vessel are described herein. In a particular embodiment, a battery pack for an electric marine vessel comprises a waterproof chassis, a high voltage battery comprising a plurality of battery cells disposed within the chassis, positive and negative high voltage connectors disposed on a front flange of the chassis, a manual disconnect connector disposed on the front flange of the chassis, and a signals connector disposed on the front flange of the chassis, the signals connector configured for signal communication with at least a power distribution unit and a vessel control unit. A battery management system disposed within the chassis and coupled to the signals connector comprises a battery management controller, a plurality of relays operable by the battery management controller, and a plurality of sensors electrically coupled to the battery management controller.

The disclosure provides a method of operating a system supported by an electric vehicle (EV). The method includes receiving input data from the input. When the input data is indicative of the EV being in a driving status, the method includes executing a first mode of operation causing a high voltage battery supported by the EV to supply power to one or more low voltage loads and to a motor. When the input data is indicative of the EV being connected to an alternating voltage source, the method includes executing a second mode of operation causing the motor and an inverter to behave as a two-phased interleaved PFC circuit. When the input data is indicative of the EV being connected to a direct voltage source, the method includes executing a third mode of operation causing the motor and the inverter to behave as a two-phased interleaved boost converter circuit.

A high-voltage battery pack for an electrical system includes a high-voltage output terminal configured for being connected to a high-voltage electrical load; a plurality of battery cells connected to form at least one string of series connected battery cells, wherein the battery cells of the at least one string are connected to the high-voltage output terminal for supplying high-voltage electrical power to the high-voltage electrical load; a first low-voltage output terminal configured for being connected to a first low-voltage electrical load, wherein a first subset of the series connected battery cells is configured for supplying low-voltage electrical power to the first low-voltage electrical load; and a second low-voltage output terminal configured for being connected to a second low-voltage electrical load, wherein a second subset of the series connected battery cells is configured for supplying low-voltage electrical power to the second low-voltage electrical load.

The invention relates to the technical field of wireless charging, in particular to a wireless charging system and an application method, and the system comprises m inverters, m-1 RIITs and transmitting coils at a GA end, n first rectifiers at a VA end, RIITs corresponding to n-1 first rectifiers, q second rectifiers, RIITs corresponding to q second rectifiers and receiving coils. The output ends of the n first rectifiers are connected in parallel and are used for outputting electric energy to the high-voltage battery; and the output ends of the q second rectifiers are connected in parallel and are used for outputting electric energy to the low-voltage battery. The high-voltage battery and the low-voltage battery supply energy through the receiving coil at the VA end, the charging mode can be changed by setting the working state of the rectifier, and decoupling control over charging of the high-voltage battery and the low-voltage battery is achieved. According to the invention, the size and cost of the charging structure of the VA end can be effectively reduced, and different levels of power requirements can be met by adjusting the number of inverters and rectifiers.

The invention discloses a high-voltage battery pack state estimation combined fault diagnosis method considering internal resistance, and the method comprises the steps: firstly obtaining micro internal resistance data from a high-voltage battery pack end, and enabling the micro internal resistance data of a high-voltage battery pack and the long-term operation data of the high-voltage battery pack to form a high-voltage battery pack original data set; secondly, performing correlation analysis on data in the original data set of the high-voltage battery pack; and then building an SOH estimation network, and inputting the data obtained by the correlation analysis into the SOH estimation network to obtain an SOH estimation value. Finally, a fault diagnosis network is built, the high-voltage battery pack micro-internal resistance, the battery SOC and the battery SOH estimated value serve as input, and a fault diagnosis result is output. The high-voltage battery pack joint SOH accurate estimation and fault diagnosis under multiple scenes can be achieved, the battery state monitoring and prediction efficiency can be improved, and the fault diagnosis efficiency is improved. And the service life and the operation safety of the battery can be improved.

The present invention relates to a method for determining the rotor temperature using a rotor temperature measuring device for an electrically powered vehicle, comprising a high-voltage battery, an inverter, a cooling device, and an electric machine comprising a stator and a rotatable rotor. A measuring device in the electrically powered vehicle acquires sensor data by means of a plurality of sensors, which are characteristic of at least one operating state of the rotor, and / or at least one operating state of the stator, and / or at least one operating state of the cooling device.The method according to the invention includes determining, in particular receiving, sensor data or data derived therefrom and providing them as input variables to a rotor temperature model of machine learning for processing, wherein the rotor temperature model comprises a set of parameters, in particular trainable ones, which are set to values ​​learned as a result of a training process, and wherein the rotor temperature model of machine learning determines at least one rotor temperature variable characteristic of a rotor temperature as an output variable.

Disclosed is a multi-port charger capable of charging a higher-voltage battery by boosting low DC charging voltage using an on-board charger (OBC) installed in a vehicle without adding a separate part or device and capable of being used for various applications, such as V2G and V2L, in addition to charging.

Systems and methods provide for battery conditioning for high voltage (HV) electrical vehicles. Battery temperatures are monitored, and responsive to one or more battery temperatures falling within designated ranges, one or more battery temperatures may be increased via heating in order to provide for more uniform battery performance and conditioning.

The present invention relates to a battery module (1) for a high-voltage battery of an electrically or partially electrically powered motor vehicle, wherein the battery module (1) comprises at least one first battery cell (10) and at least one second battery cell (20), wherein each battery cell (10, 20) has a first cell terminal (11) with a first polarity and a second cell terminal (21) with a second polarity, wherein the battery module (1) comprises a contact carrier plate (2), wherein the contact carrier plate (2) has at least one support rib (3) and adjacent to the support rib (3) a first through-slot (4) and a second through-slot (5), wherein one of the cell terminals (11, 21) of the first battery cell (10) passes through the first through-slot (4) and is bent towards the support rib (3), wherein one of the cell terminals (11,21) of the second battery cell (20) passes through the second through-slot (5) and is bent towards the support rib (3), so that one cell terminal (11, 21) of the first battery cell (10) and one cell terminal (11, 21) of the second battery cell (20) overlap on a contacting side of the contacting carrier plate (2) facing away from the multiple battery cells (10, 20), wherein the battery module (1) has a heat buffer element (50).

Test system (10) for simultaneous testing of several batteries, in particular high-voltage batteries, comprising: a DC voltage intermediate circuit (22), several basic converters (1a-1h) connected to the DC voltage intermediate circuit (22), each of which is switchably connected to a test channel (4a-4h) via a connection line (24a-24h), a boost converter (2a, 2b) connected to the DC voltage intermediate circuit (22) which, during operation of the test system (10), is switchable to different connection lines (24a-24h) to at least one of the test channels (4a-4h) via a boost line (26a, 26b) and one connection node (18a-18h), a control unit (27) for controlling the basic converters (1a-1h) and the boost converter (2a, 2b) according to a desired power transfer; wherein each connection line (24a-24h) comprises a safety-related switch (6a-6h) between test channel (4a-4h) and connection node (18a-18h).

The present invention relates to a battery module (1) for a high-voltage battery of an electrically or partially electrically powered motor vehicle, wherein the battery module (1) comprises at least one first battery cell (10) and at least one second battery cell (20), wherein each battery cell (10, 20) has a first cell terminal (11) with a first polarity and a second cell terminal (21) with a second polarity, wherein the battery module (1) comprises a contact carrier plate, wherein the contact carrier plate has at least one support rib (3) and adjacent to the support rib (3) a first through-slot (4) and a second through-slot (5), wherein one of the cell terminals (11, 21) of the first battery cell (10) passes through the first through-slot (4) and is bent towards the support rib (3), wherein one of the cell terminals (11,21) of the second battery cell (20) passes through the second through-slot (5) and is bent towards the support rib (3), such that one cell terminal (11, 21) of the first battery cell (10) and one cell terminal (11, 21) of the second battery cell (20) overlap on a contacting side of the contacting carrier plate (2) facing away from the battery cells (10, 20), wherein one cell terminal (11, 21) of the first battery cell (10) and one cell terminal (11, 21) of the second battery cell (20) are electrically connected to each other in the area of ​​their overlap, wherein the support rib (3) has a heat buffer element (50).

An electrical system for an aircraft, comprising at least one processor configured to: receive aircraft movement information, detect that the movement information indicates a potential crash, detect a loss of continuity in at least one low voltage wire, and blow a battery pack fuse to disconnect supply of the high voltage power to the aircraft.

The present application discloses a power supply and backup network of a communication device. The network includes a medium-low voltage power distribution system, a high voltage battery backup power system, a power distribution system, and a high-voltage direct-current (HVDC) bus system, where the medium-low voltage power distribution system is connected to the power distribution system by the HVDC bus system; the high-voltage battery backup power system is bypassed on the HVDC bus system; the medium-low voltage power distribution system is configured to provide HVDC power for the power distribution system by the HVDC bus system by using input mains power and oil energy backup power; the high-voltage battery backup power system is configured to provide HVDC backup power for the power distribution system by the HVDC bus system; and the power distribution system is configured to distribute, to a connected electrical device, the HVDC power.

A vehicle may include a motor system configured to drive a motor, a main high-voltage battery and a sub high-voltage battery configured to selectively supply power to the motor system, and a method controlling the vehicle may include monitoring the current state of each of at least two battery cells of the main high-voltage battery when the vehicle is parked, charging the main high-voltage battery for a preset time by allowing a certain amount of a constant current to flow through the sub high-voltage battery, a charging mode deterioration determination step of determining the degree of deterioration for each of the battery cells charged for the preset time, charging the sub high-voltage battery for a preset time by allowing an amount of a constant current to flow through the main high-voltage battery, and determining the degree of deterioration for each of the battery cells discharged for the preset time.

Example implementations include a method, apparatus and integrated circuit (IC) for active pre-charging a battery system. The IC may include a pre-charging controller configured to manage pre-charging of a capacitive load. The IC may include a programmable current control module configured to maintain constant charging current based on one or more parameters from the pre-charging controller. The IC may include a smart gate driver configured to drive one or more high voltage field-effect transistors (FETs) based on one or more control signals from the pre-charging controller. The IC may include a boundary mode controller configured to configure inductor current to maintain constant charging current. The IC may include a safety monitoring module configured to detect an overvoltage or undervoltage state based on system voltage monitoring. The IC may include a timing module configured to indicate a charge completion following a defined charge time.

A powertrain and control method that generates and transfers drive torque to a driveline of a hybrid electric vehicle is provided. The powertrain includes an internal combustion engine (ICE), at least one electric motor powered by a high-voltage battery, an integrated dual charge module (IDCM) and a controller. The controller is configured to: determine whether an external load is connected to the vehicle through the IDCM; determine an available engine-based power; determine whether the available engine-based power is above a threshold to support thermal loads; command power consumption from the high-voltage battery based on a determination that available engine-based power is not above the threshold; command power consumption from the ICE based on a determination that available engine-based power is above the threshold; and command a blending of power between the high-voltage battery and the ICE.

A mobile power conversion device for electric vehicle charging and a control method thereof are disclosed. An embodiment of the present disclosure provides a mobile power conversion device for electric vehicle charging, including: a first charging interface electrically connected to an external AC charger on one side; a second charging interface electrically connected to a vehicle without an external on-board charger (OBC) on the other side; a power supply such as a switching mode power supply (SMPS) configured to supply power to the inside of the device; an AC / DC converter configured to convert AC power input from the AC charger into DC power chargeable to a high-voltage battery of the vehicle; and a controller configured to perform vehicle charging control supplying the DC power converted by the AC / DC converter to the vehicle.

An arrangement is for increasing the range of an electrically driven vehicle combination. The arrangement includes a power adaptation and charging control unit for bidirectionally transmitting voltage between a first high-voltage battery of a towing vehicle of the vehicle combination and a second high-voltage battery of a trailer of the vehicle combination.

The invention relates to a vehicle (1) with an electric drive system, comprising - a high-voltage battery (2), - at least two electrical machines (3.1, 3.2) which are mechanically coupled or can be coupled to one another, each having at least one associated electrical inverter (5.1, 5.2), and - a charging connection (11), wherein a first of two high-voltage potentials (HV+, HV-) of the charging connection (11) can be separated from or connected to the high-voltage battery (2) via a first separating element (7.1), wherein a second separating element (7.2) is arranged to selectively connect or separate the other high-voltage potential (HV-, HV+) on the first inverter (5.1) from the same-pole high-voltage potential (HV-, HV+) on the second inverter (5.2) and on the high-voltage battery (2), wherein a third separating element (7.3) is arranged to selectively connect or separate the other high-voltage potential (HV-, HV+) on the first inverter (5.1) from the first high-voltage potential (HV+, HV-) on the second inverter (5.2), wherein a control device is configured to charge the high-voltage battery (2) at a charging station (4) with a maximum DC output voltage that is lower than the nominal voltage of the high-voltage battery (2), - to open the first and second separating elements (7.1, 7.2) and to close the third separating element (7.3) in order to connect the first inverter (5.1) in series with the charging terminal (11).