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公开(公告)号：US11218002B2
公开(公告)日：2022-01-04
申请号：US16329702
申请日：2017-10-18
发明人： Maximilian Hofer , Thomas Korherr
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：US11639967B2
公开(公告)日：2023-05-02
申请号：US17032240
申请日：2020-09-25
发明人： Maximilian Hofer , Markus Pretschuh
IPC分类号： G01R31/36 , G01R31/382 , G01R31/374
摘要： A sensor system for a battery module, includes: a shunt resistor including: a first current clamp and a second current clamp, each of the first and second current clamps to be connected to a current path of the battery module; a first voltage clamp and a second voltage clamp; and a measurement resistance between the first voltage clamp and the second voltage clamp, and electrically connected to the first current clamp and the second current clamp; a first landing pad electrically connected to the first voltage clamp; a second landing pad electrically connected to the second voltage clamp; a first temperature sensor connected to the first landing pad; and a second temperature sensor connected to the second landing pad.
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公开(公告)号：US11218008B2
公开(公告)日：2022-01-04
申请号：US16367015
申请日：2019-03-27
IPC分类号： H02J7/00 , H01M10/48 , G01R31/3842 , H01M10/42
摘要： A control unit for a battery system includes a plurality of battery cells is provided. The control unit includes: an input node configured to receive a sensor signal indicative of a state of at least one of the plurality of battery cells; a microcontroller connected to the input node and configured to generate a first control signal based on the sensor signal; and a switch control circuit configured to control a power switch of the battery system by: receiving the sensor signal, the first control signal, and a fault signal indicative of an operational state of the microcontroller; generating a second control signal based on the sensor signal; and transmitting one of the first control signal and the second control signal to an output node of the control unit based on the received fault signal.
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公开(公告)号：US11063460B2
公开(公告)日：2021-07-13
申请号：US16420027
申请日：2019-05-22
发明人： Maximilian Hofer , Stefan Doczy , Michael Haindl , Gerald Richter , Birgit Weissensteiner , Peter Kurcik , Manfred Marchl
摘要： A battery system includes: a plurality of battery cells electrically connected to each other in series between a first node and a second node; an intermediate node dividing the plurality of battery cells into a first subset of battery cells and a second subset of battery cells; a step-down converter connected in parallel with the plurality of battery cells between the first node and the second node and having an output node; a first diode, an anode of which is connected to the intermediate node and a cathode of which is connected to the output node; and a control unit interconnected between the output node and the first node and configured to control the step-down converter.
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公开(公告)号：US10270138B2
公开(公告)日：2019-04-23
申请号：US15625847
申请日：2017-06-16
摘要： A battery module includes: a battery cell; a protective circuit module electrically coupled to the battery cell; a temperature sensitive element at the battery cell; a flexible printed circuit board having first and second end portions and an inner portion extending between the first and second end portions; and a spring. The protective circuit module includes a rigid printed circuit board. The flexible printed circuit board is fixed to a surface of the rigid printed circuit board facing the battery cell by the first and second end portions such that the inner portion forms a loop, is electrically connected to the protective circuit module and to the temperature sensitive element, and is centrally positioned on the inner portion of the flexible printed circuit board. The spring is arranged within the loop of the flexible printed circuit board such that the temperature sensitive element is pushed towards the battery cell.
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公开(公告)号：US20180111572A1
公开(公告)日：2018-04-26
申请号：US15420914
申请日：2017-01-31
发明人： Maximilian Hofer , Thomas Korherr
CPC分类号： B60R16/02 , G01D5/14 , G01D5/145 , G01D5/20 , G01D5/2013 , G01D5/24466 , G01R27/2611
摘要： Embodiments of the present invention provide a crash detection circuit for detecting a crash of a vehicle and including a transformer including a first inductor as a part of a crash signal generation circuit, and a second inductor as a part of a crash signal evaluation circuit, and galvanically isolated from the first inductor, a first comparator including an output, an inverting input coupled to a first terminal of the second inductor, and a non-inverting input electrically coupled to a second terminal of the second inductor, and a window comparator including a first input terminal electrically connected to the output of the first comparator for an input voltage to be evaluated, and two second input terminals for receiving reference voltages.
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公开(公告)号：US11495836B2
公开(公告)日：2022-11-08
申请号：US17074517
申请日：2020-10-19
发明人： Peter Kurcik , Markus Pretschuh , Maximilian Hofer
IPC分类号： H02J7/00 , H01M10/42 , G01R31/3842
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：US11476690B2
公开(公告)日：2022-10-18
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：US11451072B2
公开(公告)日：2022-09-20
申请号：US16367015
申请日：2019-03-27
IPC分类号： H02J7/00 , H01M10/48 , G01R31/3842 , H01M10/42
摘要： A control unit for a battery system includes a plurality of battery cells is provided. The control unit includes: an input node configured to receive a sensor signal indicative of a state of at least one of the plurality of battery cells; a microcontroller connected to the input node and configured to generate a first control signal based on the sensor signal; and a switch control circuit configured to control a power switch of the battery system by: receiving the sensor signal, the first control signal, and a fault signal indicative of an operational state of the microcontroller; generating a second control signal based on the sensor signal; and transmitting one of the first control signal and the second control signal to an output node of the control unit based on the received fault signal.
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公开(公告)号：US11431178B2
公开(公告)日：2022-08-30
申请号：US16667179
申请日：2019-10-29
发明人： Peter Kurcik , Maximilian Hofer
IPC分类号： H02J7/00
摘要： A battery system includes a solid state switch (SSS), and a battery management system (BMS) including a gate driver and a shunt circuit. The SSS and the BMS share at least one module that is used for both the SSS and the BMS. The at least one module includes at least one of the gate driver and the shunt circuit.
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