510 results about "High voltage battery" patented technology

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.

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.

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.

A method for producing a high-voltage battery unit, particularly for vehicles, includes producing a housing, which has a plurality of housing walls coating interior sides of the housing walls with a heat-resistant metal foil, introducing an electrical battery and cooling system into the housing, and sealing the housing.

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.

A method for operating a high voltage on-board power supply of a vehicle having a protective device for when physical contact with the high voltage potentials and a reference potential when charging a high voltage battery by a direct current charging station is provided. The protective device has a voltage measuring device and a protective switch. In one of the high voltage potentials, between the protective device and a direct current charging connection, a galvanically coupled DC / DC converter is arranged and the direct current charging station provides a charging voltage, which is lower than a nominal voltage of the high voltage battery. It is determined whether physical contact with the high volage potential, in which the DC / DC converter is arranged, occurs between the DC / DC converter and the direct current charging station, and this is used as a triggering criterion for controlling the protective circuit and / or a further protective circuit.

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 a battery parallel capacity expansion circuit, a control method and an energy storage device, and relates to the technical field of batteries, and the battery parallel capacity expansion circuit comprises a first control unit and a second control unit which are respectively used for carrying out discharge control on a first battery pack and a second battery pack; the battery management system is used for detecting the voltage of the first battery pack and the second battery pack in real time, and when the voltage difference value of the two is larger than a first preset voltage threshold value, the switch element in the control unit corresponding to the high-voltage battery pack is closed, and the switch element in the control unit corresponding to the low-voltage battery pack is disconnected. The high-voltage battery pack independently supplies power to the load; and when the voltage difference value is smaller than a first preset voltage threshold value, all switching elements in the first control unit and the second control unit are closed and are connected in parallel to supply power to a load. By implementing the technical scheme provided by the invention, the safety effect of improving the capacity expansion of the battery is achieved.

This application relates to a transformer, a power supply circuit, and a vehicle. The transformer includes a core module and a winding module. A first winding suitable for connecting a power factor conversion circuit, a second winding suitable for connecting a high-voltage battery pack, and a third winding suitable for connecting a low-voltage power supply side share the core module. This significantly reduces the number of transformers, improves the integration of the transformer, and reduces the space occupied in the vehicle.

The invention relates to a method for checking the tightness of a high-voltage battery (1) of a motor vehicle, which has a battery housing (2) and a plurality of battery cells (3a-3c) which are housed inside the battery housing (2), comprising the steps: - Generating a defined overpressure inside the battery housing (2) of the high-voltage battery (1) relative to the environment by means of a pump device (4), - Measuring the pressure inside the battery housing (2) using a pressure sensor (5), - Evaluating a time course of the measured pressure using a pressure evaluation device (6), characterized in that the overpressure inside the battery housing (2) is permanently maintained relative to the environment.

A high-voltage circuitry system for a vehicle includes a high-voltage battery unit, a traveling system, a non-traveling system, an electric power distributor, an interlock circuit, and a vehicle control processor. The high-voltage battery unit includes a high-voltage battery and a first switcher. The first switcher is configured to switch a state of supply of electric power from the high-voltage battery between an on state and an off state. The interlock circuit is configured to be brought into an open state upon occurrence of a nonnormal situation. The vehicle control processor is configured to: when the interlock circuit is brought into the open state, block the high-voltage battery by turning off the first switcher; and after blocking the high-voltage battery, confirm that the traveling system and the high-voltage battery are electrically uncoupled from each other, and turn on the first switcher.

The invention relates to an electrical component arrangement (10) for a high-voltage box (46) of a high-voltage battery, which has a dimensionally stable carrier plate (12) having a first component mounting side (14) and an opposite second component mounting side (16), and which comprises at least one electrical and / or electronic first component (18; 18a, 18b, 18c) which is arranged on the first component mounting side (14) in a first arrangement area (20), and comprises at least one electrical and / or electronic second component (39; 40, 42) which is arranged on the second component mounting side (16) in a second arrangement area.The carrier plate (12) is formed in one piece from a plastic material (M) and at least the first mounting side (14) comprises a three-dimensionally formed surface (14a) which is formed with a recess (24) representing the first arrangement area (20) and / or a raised area (22) adjacent to the first arrangement area (20).

The present invention relates to an alternating current (AC) charging system for charging a high voltage (HV) battery of a vehicle, the AC charging system comprising: a socket configured to connect a cable and to receive AC via the cable from a first external power source; and a coil configured to wirelessly receive AC from a second external power source, the AC charging system being configured to charge the HV battery in a first mode based on the AC received via the cable and to charge the HV battery in a second mode based on the AC received wirelessly via the coil, the AC charging system further comprising: a first unit comprising at least one first electrical component usable only for charging in the first mode and connected to the socket; a second unit comprising at least one second electrical component usable only for charging in the second mode and connected to the coil; and a third unit comprising at least one third electrical component usable for charging in the first mode and for charging in the second mode and connectable to the HV battery.

The present invention relates to a method for heat dissipation from a high-voltage (HV) battery (11), in which a mini-channel cooling system is formed by a plurality of mini-channels (15), a coolant, a coolant pump pumping the coolant through the mini-channels, a heat exchanger, and a control unit, in which several energy storage cells (12) and several mini-channels are arranged in a housing of the HV battery, in which the mini-channels are partially connected to an outer surface of the energy storage cells (16), in which the coolant is formed by a mixture of a nano-liquid (13) and a phase-change fluid (14), and in which the coolant flow is controlled by the control unit such that an operating temperature range is maintained at the energy storage cells. Furthermore, a device with which the method can be carried out is presented.

The invention relates to the technical field of inverters, in particular to an off-grid and grid-connected inverter, a system thereof, a charging and discharging control method, a medium and equipment. The method comprises the following steps: determining a required working mode according to a setting state of a battery charging stop mark; if the required working mode is a Buck Boost mode, controlling to enter the Buck Boost mode, configuring the driving signal duty ratios of the first switch tube and the second switch tube to be complementary, configuring the driving signal duty ratios of the third switch tube and the fourth switch tube to be complementary, and controlling the first switch tube, the second switch tube, the third switch tube and the fourth switch tube to be normally conducted; and if the required working mode is a Boost mode, controlling to enter the Boost mode, configuring the driving signal duty ratios of the first switch tube and the second switch tube to be complementary, configuring the driving signal duty ratios of the third switch tube and the fourth switch tube to be complementary, controlling the second switch tube and the third switch tube to be normally conducted and work, and simultaneously turning off the first switch tube and the fourth switch tube. The high-voltage battery can be prevented from being overcharged, and stable power supply of the system is ensured.

Predictive control techniques for an electrified powertrain of a hybrid electric vehicle (HEV) include maintaining a database of past measured operational parameters of an electrified powertrain during a plurality of past drive cycles of the HEV, monitoring and comparing measured operational parameters of the electrified powertrain during a current drive cycle of the HEV to the past measured operational parameters of the electrified powertrain stored in the database, predicting or estimating operational parameters of the electrified powertrain for a remainder of the current drive cycle of the HEV based on the comparison, and controlling the electrified powertrain during the remainder of the current drive cycle of the HEV based on the predicted / estimated operational parameters of the electrified powertrain including at least controlling recharging of a high voltage (HV) battery system to increase a fuel economy or operational efficiency of the electrified powertrain.

Stack of cells (12), comprising: Adjacent first and second battery cells (16), each having a positive cell tab (17), a negative cell tab (17) and an outer surface, wherein the outer surface of the first battery cell (16) is flush with the outer surface of the second battery cell (16), the positive cell tab of the first battery cell (16) projects orthogonally from the outer surface of the first battery cell (16) and the negative cell tab of the second battery cell projects orthogonally from the outer surface of the second battery cell, and an insulating shield (20) with a housing (29) arranged in a perpendicular direction with respect to the cell tabs (17) of the positive and negative cell tabs and positioned adjacent to the outer surfaces of the adjacent first and second battery cells (16), wherein the insulating shield defines a pair of through-slots each accommodating one of the positive and negative cell tabs; wherein the insulating shield (20) is configured to align and structurally support these positive and negative cell tabs (17) prior to a welding process and to form a physical barrier against the penetration of weld spatter into the first and second battery cells during the welding process, wherein the insulating shield (20) defines first and second transverse ribs (24) each having an elongated tip (124) each defining a first and a second of the through slots (25), wherein an interference fit is provided between the first and second through slot (25) and the respective positive and negative cell tabs along the elongated tip (124), wherein the insulating shield (20) is made of thermoformed, injection-molded or compression-molded plastic. wherein the insulating shield (20) has a thickness of less than 1 mm, wherein the insulating shield (20) has a pair of flat end flanges with a bottom surface that rests on the outer surfaces of the adjacent first and second battery cells (17) wherein the thicknesses of the cell tabs (17) are 0.2 mm-0.4 mm.

The invention relates to a method for operating a high-voltage battery (20) of an electrically powered vehicle (10), which comprises at least one first cell unit (22) with a first cell type and a second cell unit (24) with a second cell type, wherein the first cell unit (22) has a higher cycle stability than the second cell unit (24) and wherein the second cell unit (24) has a higher energy density than the first cell unit (22). The high-voltage battery (20) is operated in a bidirectional charging mode depending on vehicle-internal and / or vehicle-external boundary conditions. The choice of which cell unit (22) and / or the second cell unit (24) is used depends on these vehicle-internal and / or vehicle-external boundary conditions.

High-voltage battery cooling control technology for a vehicle, comprising: Determine, by means of a control system, whether the vehicle's interior air temperature, vehicle speed, and high-voltage battery temperature meet a predetermined interior air switching requirement condition. Switching to an interior air mode via a control unit occurs when the interior air temperature, vehicle speed, and high-voltage battery temperature meet the predetermined interior air switching requirement condition. Determining a defrost mode state of the vehicle after the control unit determines that the interior air switching request state is met; and Implement the interior air mode only when the vehicle's defrost mode is off. where, if the interior air temperature is greater than the high-voltage battery temperature, the vehicle speed is 0 km / h, and the high-voltage battery temperature is greater than a predetermined high-voltage battery reference temperature range within which the high-voltage battery can operate normally, the predetermined interior air switching requirement condition is met.

The embodiment of the invention provides a multi-voltage platform control method and device and related equipment, and relates to the technical field of vehicle engineering. The method comprises the following steps: when a high-voltage battery and a first DC / DC converter are in a normal state, controlling the first DC / DC converter to be in a working mode; based on a first preset voltage gradient, the voltage of a first low-voltage battery is boosted to a first preset working voltage, and the first low-voltage battery is used for supplying power to a first low-voltage electric appliance; when the high-voltage battery and the first DC / DC converter are in the normal state, judging the state of the second DC / DC converter; when the second DC / DC converter is in the normal state, controlling the second DC / DC converter to be in a working mode; and based on a second preset voltage gradient, the voltage of a second low-voltage battery is boosted to a second preset working voltage, and the voltage of the second low-voltage battery is used for supplying power to a second low-voltage electric appliance. According to the embodiment of the invention, the three voltage platforms can work simultaneously and independently.

A predictive supervisory energy management technique for a fuel cell electric vehicle (FCEV) involves monitoring driver inputs to the FCEV, states of the FCEV, and external inputs affecting the FCEV along a defined route, predicting energy consumption by a high voltage system of the FCEV across a future prediction horizon based on the driver inputs, the states of the FCEV, and the external inputs affecting the determining weighting factors and boundary conditions for a cost function for the energy consumption by the high voltage system of the FCEV, evaluating the cost function based on the determined weighting factors, boundary conditions, and the predicted energy consumption by the high voltage system across the future prediction horizon, and optimally controlling a fuel cell system and a high voltage battery system of the high voltage system of the FCEV based on the evaluation of the cost function.

This utility model relates to electrical engineering, specifically to autonomous power sources based on lithium-polymer (Li-Po) cells. It can be used in portable electronic devices, power tools, robotic systems, unmanned aerial vehicles, and other equipment requiring a stable, high-capacity DC power source. The technical result of this utility model is increased mechanical strength and operational safety.A lithium-polymer High Voltage battery for portable use comprises a housing made of heat-shrinkable tube, in which batteries are placed, fixed together with polypropylene adhesive tape to form a battery pack, the terminals of which are connected to a printed circuit board, to which a balancing and power cable are connected, while adhesive tape is glued to the current-carrying parts of the printed circuit board, followed by the application of gaskets made of ethylene vinyl acetate and electrical cardboard, which are fixed with reinforced adhesive tape, and the battery pack consists of lithium-polymer batteries with a capacity of 4300-4500 mAh and a voltage of 22.8 V. 1 fig.

A vehicle system for an electrified vehicle that provides cost information for operating the electrified vehicle in a drive mode includes an electric traction motor configured to provide drive torque to a plurality of wheels, a high voltage battery system configured to power the electric traction motor, one or more sensors configured to monitor tire wear of each wheel of the plurality of wheels, and a human machine interface (HMI) configured to provide a plurality of user selectable drive modes. A controller is configured to detect a user selected drive mode, receive tire cost data for each wheel, receive tire wear data from the one or more sensors, determine a tire wear cost for operating the electrified vehicle in the user selected drive mode, based on the tire cost data and the tire wear data, and display the tire wear cost on the HMI.

A method of controlling the charging of a low-voltage battery (12) of an electric vehicle (V) via a high-voltage battery (14) of the electric vehicle is described. In a first operating state of the vehicle, wherein the vehicle is on, energy is transferred from the high-voltage battery (14) to the low-voltage battery (12) via a DC / DC converter (16) of the vehicle. A request for turn-off of the vehicle is detected, and in response to the turn-off request, the vehicle passes from the first operating state to a second operating state of the vehicle, wherein the electrical apparatuses of the vehicle are off except for the high-voltage battery and the DC / DC converter, and a timer is initialized. In the second operating state of the vehicle, energy is transferred from the high-voltage battery to the low-voltage battery via the DC / DC converter, and the timer is increased at a constant rate. The vehicle passes from the second operating state to a third operating state of the vehicle, wherein all electrical apparatuses of the vehicle including the DC / DC converter are off and the charging of the low-voltage battery is interrupted, in response to at least one of the following conditions: (i) the state of charge (SOCLV) of the low-voltage battery reaches a minimum safe value; (ii) the timer reaches a timeout value; (iii) a fault in the low-voltage battery is detected; (iv) a fault in the DC / DC converter is detected; and (v) the state of charge (SOCHV) of the high-voltage battery decreases below a threshold value. A request for turn-on of the vehicle is detected and, in response to the turn-on request, the vehicle passes from the second or third operating state to the first operating state of the vehicle.

The invention relates to an electric drive arrangement (1) for a vehicle, comprising a first high-voltage battery (2) and a second high-voltage battery (3) each with two terminals, at least one inverter (5) with two terminals connected to the first high-voltage battery (2), and an electric machine (6), wherein the first high-voltage battery (2) has a higher DC voltage than the second high-voltage battery (3), wherein a voltage converter (10) is arranged which is connected to the first high-voltage battery (2) and to which one of two terminals of the second high-voltage battery (3) is connected via a choke (L4), wherein the same terminal of the second high-voltage battery (3) is further connected via a switching element (12) to a star point (11) of the electric machine (6), wherein a second terminal of the second high-voltage battery (3) is connected to one of the terminals of the first high-voltage battery (2).

The utility model discloses a relay, a power distribution box and a battery pack. The relay comprises a first shell, an isolation plate, a first static contact terminal and a second static contact terminal. The first static contact terminal penetrates through the first shell and is provided with a first section exposed out of the first shell; the second static contact terminal penetrates through the first shell and is provided with a second section exposed out of the first shell; the isolation plate and the first shell are integrally formed, and the isolation plate is arranged between the first section and the second section. The creepage distance and the electric gap between the first section and the second section are increased through the isolation plate, so that the risk of electric leakage between the first static contact terminal and the second static contact terminal is reduced, and the insulation requirement of the high-voltage battery pack is met. Meanwhile, the isolation plate and the first shell are arranged to be of an integrally-formed structure, the connection strength of the isolation plate and the first shell can be improved, the isolation plate and the first shell are prevented from falling off in the use process, and the relay is convenient to assemble and use.

The invention relates to a power control system and a vehicle including the same. A power control system according to one embodiment of the present invention comprises: a first converter configured to convert a voltage of a high-voltage battery into a first voltage; a first battery; a first power distributor; a second converter configured to convert a voltage of the high-voltage battery into a second voltage; a first power distributor configured to distribute power of the first converter to the first battery and the first voltage load; a second converter configured to convert a voltage of the high-voltage battery into a second voltage; a second power distributor configured to distribute power of the second converter to a second battery and a second voltage load; the bidirectional converter is connected between the first power distributor and the second power distributor. Here, each of the first power distributor and / or the second power distributor includes at least one switch, and the at least one switch is controlled to be turned on or off in response to an occurrence of a set fault condition.

The invention relates to a method for fixing a threaded bushing (10) in a plastic component (20) for a high-voltage battery (110) of an electrically powered vehicle (100), comprising the following steps: a) Providing a recess (30) for the threaded bushing (10) in the plastic component (20), b) Heating the threaded bushing (10) to a process temperature, c) Inserting the heated threaded bushing (10) into the recess (30) and d) Pressing in the threaded bushing (10) using a press (40) so that the threaded bushing (10) is pressed radially into the plastic component (20) and melts.

A transformer for an OBC of an electric vehicle includes: a housing; a cover for opening and closing a storage space of the housing; a plate-type primary coil embedded in the storage space of the housing and supplied with power from a charger side; and a plurality of plate-shaped secondary coils embedded in the storage space of the housing to independently generate an induced current by magnetic field induction from the primary coil and output the induced current to a high voltage battery, and according to this, there is an advantage of reducing the size and improving the product productivity.