1419 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.

The invention relates to the technical field of industrial control, in particular to a battery SOC balance control method, an inverter parallel operation system, equipment and a medium. The battery SOC equalization control method comprises the following steps: according to a preset equalization period, a current inverter obtains a battery actual SOC of a high-voltage battery connected with the current inverter, and provides the battery actual SOC for a preset host so as to obtain an average SOC provided by the preset host according to the battery actual SOC; obtaining an SOC difference value between the actual SOC and the average SOC of the battery, and obtaining a current correction value based on the SOC difference value; and obtaining the charging and discharging states of the inverter parallel operation system and the battery current threshold value of the high-voltage battery, and correcting the battery current threshold value by adopting the current correction value based on the charging and discharging states to obtain a final current threshold value. According to the invention, the balance of the SOC of the inverter parallel operation system is improved, the overhigh load of part of inverters is avoided, and the fault risk is reduced, so that the stability and reliability of the inverter parallel operation system are enhanced.

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 provides a control mode switching method and device, a vehicle and a storage medium, the method is applied to the technical field of vehicles, and the method comprises the steps that in the process that the vehicle is switched from a pure electric four-wheel drive mode to a direct drive mode, if a target gear is an odd gear, whether the odd gear is available or not is judged; when it is determined that the odd gears are unavailable, whether the vehicle meets the preset condition of switching to the series connection mode or not is judged; and under the condition that it is determined that the vehicle meets the preset condition, an engine of the vehicle is controlled to be in a running state, and a second clutch is controlled to be closed, so that the vehicle is switched to a series connection mode from a pure electric four-wheel drive mode. The method can ensure the power performance of the vehicle, improve the driving safety of the vehicle, and avoid the safety problem caused by stall of the vehicle due to power shortage of a high-voltage battery since the engine is frequently started and the engine is forbidden to start after the engine is frequently started.

Electrified vehicle energy management techniques include determining when a state of charge (SOC) of a high voltage (HV) battery system is below an SOC threshold and, in response, determining whether an electric motor is operating as a generator or a consumer, when the electric motor is operating as a consumer, calculating a power offset value based on a difference between an available power of the HV battery system and a set of HV loads, when the electric motor is operating as a generator and its generated power is less than the set of HV loads, calculating the power offset value based on a difference between the generated power and the set of HV loads, and controlling the set of HV loads using a final output power calculated based on the power offset value and a minimum power for the set of HV loads.

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 formwork (104) for a high-voltage battery (100) comprising a cell carrier (101) having cell vanes (103), wherein the formwork (104) has at least a partially electrically insulating wall (105) configured to tightly seal an opening for inserting cells (102) into the cell carrier (101) against the escape of fire-resistant foam from the cell carrier (101). The formwork comprises a high-voltage battery and a vehicle.

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 flat towing technique for an electrified vehicle includes in response to a request for and during a flat towing operation, monitoring at least a back electromotive force (EMF) generated by an electric motor of the electrified powertrain, performing field weakening control of the electric motor such that the back EMF generated by the electric motor during the flat towing operation maintains a high voltage bus that powers the electric motor at a target voltage level, selectively isolating a high voltage battery system of the electrified powertrain from the high voltage bus based on a desired capacity of the high voltage battery system, and adjusting the target voltage level for the high voltage bus based on respective lower limits for electric motor speed and high voltage bus voltage and when the high voltage battery system is isolated from the high voltage bus.

The invention provides a coordinated regenerative braking system and method applied to a fuel cell vehicle, and the system comprises a brake pedal which is used for transmitting a brake signal to a brake controller when being stepped down; the braking controller is used for calculating the deceleration required by the vehicle, the braking torque T which is equal to m * a * r and is required by the vehicle, the distribution electric feedback braking torque T1 and the supplementary distribution air pressure braking torque T2, so that T1 + T2 is equal to T; the driving motor is used for generating negative torque, providing braking force, generating reverse current to charge the high-voltage battery and converting part of kinetic energy of the vehicle into chemical energy to be stored in the high-voltage battery; and the high-voltage battery is used for converting part of kinetic energy of the vehicle into chemical energy for storage through the driving motor. The technical scheme is used for solving the technical problems that in the prior art, the vehicle endurance mileage increasing degree is limited, obvious jerking feeling can occur in supplementary air braking, and the rushing phenomenon occurs in the speed reduction process.

The invention discloses a service-oriented high-voltage regulation electricity supplementing method and device and a storage medium. Comprising the steps that the SOC and the voltage of a low-voltage battery pack are continuously monitored, when the SOC of the low-voltage battery pack is smaller than a charging SOC threshold value and an enabling position is actively awakened, a back-domain controller, a vehicle control unit and a front-domain controller are awakened, and information of the low-voltage battery pack is sent to the back-domain controller; the back-domain controller judges that conditions are met, sends a charging request to the vehicle control unit, charges the low-voltage battery pack through the vehicle control unit and the high-voltage battery pack, customized services are made on the basis of an SOA framework and high-voltage power-on, during charging, high-voltage power-on can be achieved at an OFF gear, only the target controller is awakened on the basis of sub-network segment management, simultaneous awakening of the whole vehicle is avoided, power consumption is reduced, and power consumption is reduced. And meanwhile, the back-domain controller can be awakened only when the back-domain controller is at the active awakening enabling position, so that the problems of frequent network awakening, electric energy loss and battery safety are solved, and the requirements of accurate awakening, power saving, safety and high efficiency of power compensation are met.

According to this mounting structure of an electrical device (2) on a vehicle (1), the electrical device (2) provided on a power supply path from a high-voltage battery (7) mounted on the vehicle (1) to a high-voltage first electronic component (9) mounted on the vehicle (1) is disposed rearward of a center console box (3). Harnesses (12, 13) extend forward from the front of the electrical device (2), and the harnesses (12, 13) electrically connect the electrical device (2) to the battery (7) or the first electronic component (9). The mounting structure includes a bracket (20) that covers the top of the electrical device (2), and the bracket (20) has an eave part (21) with a distal end extending forwardly upward. The harnesses (12, 13) are routed to pass under the eave part (21) to the inside of the center console box (3).

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 system for monitoring a battery of a vehicle includes a processor and a memory storing instructions which when executed by the processor configure the processor to receive first features including statistics of internal resistances of a plurality of cell groups in a battery pack of the battery, compute second features for the battery pack based on the first features, determine whether the battery pack is faulty based on one or more of the second features, and determine, in response to the battery pack being faulty, whether one or more of the cell groups is faulty based on one or more of the first features.

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 invention provides an energy recovery control method and device, a vehicle and a storage medium. According to the method, when a target vehicle is braked, energy is recycled through a front wheel driving motor, and recycled electric quantity is obtained. And when the recycled electric quantity is greater than the first target electric quantity, charging the first electric quantity in the recycled electric quantity into the high-voltage battery through the first line, and storing the electric energy of the second electric quantity in the recycled electric quantity into an energy storage device in the rear wheel driving motor through the second line. Namely, the front wheel driving motor is used for energy recovery, and the rear wheel driving motor is used for temporary energy storage. Therefore, when the high-voltage battery cannot accommodate the recycled electric quantity, the electric energy of the rest electric quantity can be recycled through the rear wheel driving motor, so that the recycled electric quantity is fully absorbed. Therefore, when the vehicle is braked, heat energy originally generated by kinetic energy can be converted into electric energy, and abrasion to the brake disc is reduced. In addition, when the recycled electric quantity is large, the recycled electric quantity is absorbed as much as possible, the target vehicle can be assisted in braking rapidly, and the braking efficiency is improved.

Embodiments of the present application provide a power supply system and method of a server, an electronic device, and a storage medium. 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 whole main power utilization power path is simple and reliable, electric energy conversion on a high-voltage direct-current power supply at an input side is not required, the design structure between a high-voltage direct-current power supply inlet and a power utilization inlet of the server is simplified, thus the working efficiency of the power supply system can be effectively improved, and the heat loss is reduced; additionally, when a main power supply system outside the server works abnormally, the power utilization requirement of the server can be ensured, and the conversion efficiency and the working reliability of the power supply system are ensured.

A battery system for an electrified vehicle includes a battery pack, a fastening assembly, a decoupler, at least one sensor assembly and a controller. The battery pack includes a battery module assembly having at least a first battery module and a second battery module. The fastening assembly includes a fastening set associated with each battery module. The decoupler is configured to initiate decoupling of a selected battery module from the battery pack. The sensor senses a thermal event at a faulty battery module and communicates a thermal event signal in response to the sensing. The controller receives the thermal event signal and, responsive to the thermal event signal, communicates a decoupling signal to the decoupler to decouple the faulty battery module from the battery pack.

A power supply device includes: a low-voltage direct current-direct current converter (LDC) to convert a voltage of a high-voltage battery to supply power; a first low-voltage battery to be charged by receiving power from the LDC and supply power to a general load; a bidirectional converter to convert a voltage supplied from the LDC and control a charge amount of a second low-voltage battery; the second low-voltage battery to be charged by receiving power from the bidirectional converter and supply power to a dual power source load; a first relay disposed between the LDC and the first low-voltage battery; a second relay disposed between the bidirectional converter and the second low-voltage battery; a second battery sensor to measure a voltage of the second low-voltage battery; and a control unit to control the bidirectional converter.

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.

The invention relates to a high-voltage battery (1) as a traction battery for a motor vehicle, comprising a plurality of individual battery cells (2) whose battery terminals (8, 10) are arranged on a first side of a cell housing (4) and connected to current collectors (13, 14), wherein each of the individual battery cells (2) has a pressure relief element (12) which opens the cell housing (4) when a predetermined pressure is reached. The high-voltage battery according to the invention is characterized in that the The overpressure relief element (12) is arranged together with the battery terminals (8, 10) of the battery cell (2) on a first side of the cell housing (4), wherein the battery terminals (8, 10) connected to the current collectors (13, 14) and the overpressure relief element (12) are covered with an electrically insulating, chemically, mechanically and temperature-resistant potting compound (20), which is designed such that it bursts open in the area of ​​the affected battery cell (2) in the event of an activation of the overpressure relief element (12).

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.

An electrical system includes a high-voltage battery pack assembly having a first cell set with a first group of energy storage cells and a second cell set having a second group of energy storage cells connectable to the first cell set. The first cell set includes at least one first battery chemistry cell and the second cell set includes at least one second battery chemistry cell. At least one switch is in electrical communication with the first or second cell set. Battery connection terminals are in electrical communication with at least one of the first or second cell sets. A controller is configured to determine an operating strategy of the high-voltage battery pack assembly and place at least one of the first cell set or the second cell set in electrical communication with the battery connection terminals in response to the operating strategy of the high-voltage battery pack.

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.