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公开(公告)号：US20210300207A1
公开(公告)日：2021-09-30
申请号：US17190627
申请日：2021-03-03
发明人： Maximilian HOFER , Christoph SCHMIEDHOFER , Thomas TRATHNIGG , Kurt DULLER , Renato MANDIC , Damir KOVAC
摘要： An electric-vehicle battery system includes a high voltage system with a plurality of connected rechargeable battery cells; a low voltage system with an operating voltage lower than an operating voltage of the high voltage system, the low voltage system supplying a battery system manager; and a real time clock configured to provide a system time to the battery system manager. The real time clock may be at least temporarily powered by the high voltage system.
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公开(公告)号：US20210328675A1
公开(公告)日：2021-10-21
申请号：US17228142
申请日：2021-04-12
IPC分类号： H04B10/275 , H04B10/114 , H01M10/48 , H01M10/42
摘要： A battery system includes: a plurality of battery modules including a plurality of battery cells, wherein each battery module comprises a battery module monitor configured to monitor a state of the battery cells; a battery system monitor; and an optical communication system configured to connect the battery module monitors with the battery system monitor over at least two communication paths, wherein the optical communication system is configured to use at least two different wavelengths of light to differentiate between the communication paths.
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公开(公告)号：US20210217693A1
公开(公告)日：2021-07-15
申请号：US17146785
申请日：2021-01-12
发明人： Florian MAXL , Markus PRETSCHUH , Maximilian HOFER , Peter KURCIK
IPC分类号： H01L23/498 , H01L25/065 , H01L23/367 , B60L58/10 , B60K6/28
摘要： A power semiconductor device includes: a power semiconductor; a base metal sheet; and a flexible printed circuit board (PCB) between the base metal sheet and the power semiconductor. The power semiconductor includes a first power pad on a side facing the flexible PCB, and the flexible PCB includes a conductive pad, one side of which is electrically connected to the first power pad of the power semiconductor and the opposite side of which is electrically connected to the base metal sheet.
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公开(公告)号：US20210143486A1
公开(公告)日：2021-05-13
申请号：US17074517
申请日：2020-10-19
发明人： Peter KURCIK , Markus PRETSCHUH , Maximilian HOFER
IPC分类号： H01M10/42 , G01R31/3842 , H02J7/00
摘要： A control unit for a battery system, comprising: a microcontroller configured to generate a first control signal; a monitoring unit configured to generate a fault signal indicative of the operational state of the microcontroller; a first signal source configured to generate a state signal indicative of a system state; a comparator circuit configured to generate an intermediate control signal based on a first control signal and a fault signal; the comparator circuit further comprising a comparator node, the comparator circuit configured to transmit the intermediate control signal to the comparator node; wherein the first signal source is connected to the comparator node to transmit the state signal to the comparator node; the comparator circuit further comprises a comparator connected to the comparator node and configured to generate a switch control signal based on a voltage on the comparator node and based on a threshold voltage.
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公开(公告)号：US20190326649A1
公开(公告)日：2019-10-24
申请号：US16461987
申请日：2017-10-18
摘要： The present invention refers to a battery module comprising: at least one battery cell; a protective circuit module electrically coupled to the battery cell and including a printed circuit board; and a thermocouple unit being assembled on the printed circuit board and including two wires composed of dissimilar conductors, which are joined together at a sensing point provided at the battery cell, the thermocouple unit providing a value for a temperature TSENCE at the sensing point.
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公开(公告)号：US20210234208A1
公开(公告)日：2021-07-29
申请号：US16761884
申请日：2018-06-01
摘要： The present invention relates to a testing method for the thermal contact between a temperature sensor (50) and a battery cell (10) of a battery module (30), wherein the method comprises the steps of measuring a temperature T1 of the temperature sensor (50) at a time point t1, heating the temperature sensor (50) for a defined time (t2-t1), measuring a temperature T2 of the temperature sensor (50) at a time point t2 and/or a temperature T3 of the temperature sensor (50) at a time point t3, and determining the thermal contact between the temperature sensor (50) and the battery cell (10) based on at least one of the temperature differences ΔT2,1=(T2-T1), ΔT3,1=(T3-T1) and/or ΔT3,2=(T3-T2). The invention further relates to a testing circuit (60) for a temperature sensor (50) of a battery module (30), comprising a thermistor (61) with a first node (67) connected to a first supply voltage (65) and a second node (68) connected to ground (69), a switch (63) interconnected between the first node (67) of the thermistor (61) and a second supply voltage (66), and an analog-to-digital converter (64) connected in parallel to the thermistor (61). The invention further relates to a cell supervision circuit (40) for a battery module (30), comprising a circuit carrier (45), a testing circuit (60) according to any one of the claims 1 to 10, and a temperature sensor (50) surface mounted to the circuit carrier (45) and comprising a measuring head (51) with
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公开(公告)号：US20210126481A1
公开(公告)日：2021-04-29
申请号：US17009325
申请日：2020-09-01
摘要： A power supply system for a battery system of a vehicle is provided. The power supply system includes: a switch control unit configured to control a power switch to switch an external load; an electronic unit; a first power supply electrically connected to the switch control unit and electrically connected to the electronic unit; a second power supply; and a switching unit. In a normal mode, the first power supply electrically supplies the electronic unit. The switching unit is configured to, in a cold crank mode: electrically disconnect the first power supply from the electronic unit when a voltage of the first power supply drops below a threshold voltage; and electrically connect the second power supply to the electronic unit when the voltage of the first power supply drops below the threshold voltage such that the second power supply powers the electronic unit in the cold crank mode.
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公开(公告)号：US20210028632A1
公开(公告)日：2021-01-28
申请号：US16852923
申请日：2020-04-20
发明人： Maximilian HOFER , Nikolaus HOCHGATTERER , Dolores KIM , Myungchul KIM , Sunmin KIM , Pyungkap KIM , Byeongseon MIN , Sangchul SEO , Jeongmo YANG , Kwangmin YOO
IPC分类号： H02J7/00
摘要： In a control unit for a battery system, the control unit includes: an input node configured to receive a sensor signal indicating a state of at least one of a plurality of battery cells of the battery system; a first microcontroller configured to generate a first control signal based on the state of the at least one battery cell; a first communication interface configured to receive a second state signal indicating an operation state of a second microcontroller; and a switch control circuit configured to: receive the first control signal; generate a second control signal based on the state of the at least one battery cell; and transmit one of the first and second control signal to a power switch of the battery system based on at least one received state signal indicating an operation state of the first microcontroller and of an operation state of the second microcontroller.
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9.发明申请公开(公告)号：US20190199105A1
公开(公告)日：2019-06-27
申请号：US16329702
申请日：2017-10-18
发明人： Maximilian HOFER , Thomas KORHERR
CPC分类号： H02J7/0014 , B60L53/22 , B60L58/10 , B60L58/22 , G04G19/00 , G06F1/14 , G06F1/32 , H01M10/425 , H01M10/4257
摘要： Embodiments of the present invention relate to a battery system with internally powered real time clock, the battery system includes a plurality of battery cells connected in series and/or in parallel between a first terminal and a second terminal and a real time clock electrically connected to a first node of the plurality of battery cells, a voltage of a single battery cell of the plurality of battery cells applies to the first node, and the real time clock draws power via the first node in a first operation state and in a second operation state of the battery system.
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公开(公告)号：US20180123353A1
公开(公告)日：2018-05-03
申请号：US15725137
申请日：2017-10-04
发明人： Maximilian HOFER , Thomas KORHERR
摘要： A method for operating a buck converter as a power source for electronics of a battery system, includes: operating the buck converter in a first mode in which the buck converter provides a first output voltage; receiving a first control signal; and in response to receiving the first control signal, operating the buck converter in a second mode in which the buck converter provides a second output voltage for a System Basis Chip of the battery system. The first output voltage has a first value in a range of a to b, and the second output voltage has a second value in the range of c to d, wherein b is less than c.
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