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公开(公告)号：US20200309837A1
公开(公告)日：2020-10-01
申请号：US16363146
申请日：2019-03-25
申请人： LG Chem, Ltd.
发明人： Kerfegar K. Katrak
IPC分类号： G01R31/00 , G06F11/07 , G06F16/901
摘要： A diagnostic system for a vehicle electrical system is provided. The diagnostic system includes a microcontroller having microcontroller core components. A first diagnostic handler application sends a first index value to the microcontroller core component diagnostic safety application. The microcontroller core component diagnostic safety application accesses a microcontroller core component diagnostic flag in a first table in the RAM if the first index value is equal to a valid index value in a first table. The microcontroller core component diagnostic safety application sends the microcontroller core component diagnostic flag to the first diagnostic handler application
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公开(公告)号：US10720674B2
公开(公告)日：2020-07-21
申请号：US16031333
申请日：2018-07-10
申请人： LG Chem, Ltd.
发明人： Kerfegar K. Katrak , Nitin Bharane
IPC分类号： H01M10/42 , H04L1/00 , H04Q9/00 , G01R35/00 , G01R31/3835 , H01M10/48 , G01R31/396
摘要： A battery management system includes a microcontroller having first and second applications. The first application transitions a contactor to an open operational position if a first CRC diagnostic flag is equal to a first encoded fault value. The second application transitions the contactor to the open operational position if a second CRC diagnostic flag is equal to a second encoded fault value. The first and second encoded fault values have a Hamming distance of at least four from one another.
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3.发明授权公开(公告)号：US10664373B2
公开(公告)日：2020-05-26
申请号：US16028500
申请日：2018-07-06
申请人： LG Chem, Ltd.
发明人： Kerfegar K. Katrak
摘要： A self-diagnosing microcontroller includes a microprocessor having first and second applications, and a hardware abstraction layer. The microprocessor is operably coupled to an analog-to-digital converter. The hardware abstraction layer sequentially sets a first pre-check indicator to a first fault value for each encoded channel number of a second plurality of encoded channel numbers that does not have an identical and corresponding encoded channel number in a first plurality of encoded channel numbers indicating an incorrect channel was read from the analog-to-digital converter, and sends the first pre-check indicator to the first application.
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公开(公告)号：US10605846B2
公开(公告)日：2020-03-31
申请号：US16038331
申请日：2018-07-18
申请人： LG Chem, Ltd.
发明人： Kerfegar K. Katrak
摘要： A diagnostic system having first and second applications is provided. The first application multiplies a first voltage value associated with a voltage regulator by a first correction value to obtain a first corrected voltage value. The first application receives a second corrected voltage value from the second application. The first application sets a first voltage regulator status flag equal to a first fault value when a difference between the first and second corrected voltage values is greater than a threshold difference value. The first diagnostic handler application generates control signals if the first voltage regulator status flag is equal to the first fault value.
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公开(公告)号：US10439496B2
公开(公告)日：2019-10-08
申请号：US15682143
申请日：2017-08-21
申请人： LG Chem, Ltd.
发明人： Kerfegar K. Katrak
摘要： A control system for a DC-DC voltage converter includes a microcontroller having first and second applications. The first application commands the microcontroller to generate a first signal that is received at a first pin on a high side integrated circuit to transition a first plurality of FET switches to an open operational state, and that is received at a first pin on the low side integrated circuit to transition a second plurality of FET switches to the open operational state. The second application commands the microcontroller to generate a second signal that is received at a second pin on the high side integrated circuit to transition the first plurality of FET switches to the open operational state, and that is received at a second pin on the low side integrated circuit to transition the second plurality of FET switches to the open operational state.
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公开(公告)号：US10348207B2
公开(公告)日：2019-07-09
申请号：US15722326
申请日：2017-10-02
申请人： LG Chem, Ltd.
发明人： Kerfegar K. Katrak
摘要： A control system for a DC-DC voltage converter includes a microcontroller having first and second applications. The first application commands the microcontroller to generate a first signal that is received at a first pin on a high side integrated circuit to transition a first plurality of FET switches to an open operational state, and that is received at a first pin on the low side integrated circuit to transition a second plurality of FET switches to the open operational state. The second application commands the microcontroller to generate a second signal that is received at a second pin on the high side integrated circuit to transition the first plurality of FET switches to the open operational state, and that is received at a second pin on the low side integrated circuit to transition the second plurality of FET switches to the open operational state.
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公开(公告)号：US10338145B2
公开(公告)日：2019-07-02
申请号：US15657305
申请日：2017-07-24
申请人： LG Chem, Ltd.
发明人： Kerfegar K. Katrak
摘要： A voltage monitoring system having a microcontroller with an analog-to-digital converter with a first channel, and a memory device is provided. The microcontroller includes a monitoring application and a hardware abstraction layer. The monitoring application sends a first encoded channel number to the hardware abstraction layer. The hardware abstraction layer determines a first channel number based on the first encoded channel number, and obtains a measured voltage value associated with the first channel number. The hardware abstraction layer sends a second encoded channel number and the measured voltage value therein to the monitoring application. If the first encoded channel number is equal to the second encoded channel number, then the monitoring application stores the measured voltage value in the memory device.
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8.发明申请公开(公告)号：US20190036328A1
公开(公告)日：2019-01-31
申请号：US15928214
申请日：2018-03-22
申请人： LG Chem, Ltd.
发明人： Kerfegar K. Katrak
摘要： A diagnostic system is provided. A first monitoring application sets a first voltage regulator status flag equal to a first fault value when a first voltage value is greater than a first maximum voltage value. A first diagnostic handler application transitions each of a high voltage switch and a low voltage switch to an open operational state when the first voltage regulator status flag is equal to the first fault value. A second monitoring application sets a second voltage regulator status flag equal to a second fault value when the second voltage value is less than a first minimum voltage value. A second diagnostic handler application transitions the high voltage switch and the low voltage switch to the open operational state when the second voltage regulator status flag is equal to the second fault value.
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公开(公告)号：US20190033386A1
公开(公告)日：2019-01-31
申请号：US16046965
申请日：2018-07-26
申请人： LG Chem, Ltd.
发明人： Kerfegar K. Katrak
摘要： A self-diagnosing battery cell monitoring system having a battery cell voltage monitoring IC with a digital voltage substrate, an analog differential voltage substrate, and an analog voltage substrate is provided. The first diagnostic handler application commands a digital input-output device to generate control signals to transition a contactor to an open operational state if the first diagnostic flag associated with the digital voltage substrate is equal to the first encoded fault value, or the second diagnostic flag associated with the analog differential voltage substrate is equal to the second encoded fault value, or the third diagnostic flag associated with the analog voltage substrate is equal to the third encoded fault value.
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公开(公告)号：US10128648B2
公开(公告)日：2018-11-13
申请号：US15247087
申请日：2016-08-25
申请人： LG Chem, Ltd.
发明人： Kerfegar K. Katrak , Mehdi Rexha
摘要： A diagnostic system for a DC-DC voltage converter having a low voltage bi-directional MOSFET switch is provided. The low voltage bi-directional MOSFET switch has first and second nodes. The microcontroller samples a first voltage at the first node at a first sampling rate utilizing a first common channel in a first bank of channels to obtain a first predetermined number of voltage samples. The microcontroller determines a first number of voltage samples in the first predetermined number of voltage samples in which the first voltage is less than a first threshold voltage. The microcontroller sets a first voltage diagnostic flag equal to a first fault value if the first number of voltage samples is greater than a first threshold number of voltage samples indicating a voltage out of range low fault condition for the analog-to-digital converter.
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