公开(公告)号：US11852543B2

公开(公告)日：2023-12-26

申请号：US16502251

申请日：2019-07-03

申请人： Bayerische Motoren Werke Aktiengesellschaft

发明人： Gerhard Woelfl

IPC分类号： G01K7/01 ,  H03K17/0812 ,  H03K17/08

CPC分类号： G01K7/01 ,  H03K17/08122 ,  G01K2217/00 ,  H03K2017/0806

摘要： A method determines a temperature of at least one electronic switching element by way of a temperature measuring circuit. A first electronic switching element in an electronic module is first of all turned off and a second electronic switching element in the electronic module is turned on. A voltage measuring unit is then coupled to the electronic module and a voltage drop across the second electronic switching element is measured. A current intensity of a current flowing through the second electronic switching element is also determined and the temperature of the second electronic switching element is determined with the inclusion of the measured voltage drop and the determined current intensity. An electronic assembly for determining a temperature of at least one electronic switching element is also described.

公开(公告)号：US11656288B2

公开(公告)日：2023-05-23

申请号：US17672969

申请日：2022-02-16

申请人： Bayerische Motoren Werke Aktiengesellschaft

发明人： Jose Lopez De Arroyabe ,  Gerhard Woelfl

IPC分类号： G01R31/389 ,  H02J7/00 ,  B60L50/60 ,  G01R31/396 ,  G01R31/3835 ,  B60L58/20

CPC分类号： G01R31/389 ,  B60L50/60 ,  B60L58/20 ,  G01R31/3835 ,  G01R31/396 ,  H02J7/0013 ,  H02J7/0047 ,  H02J7/0063 ,  B60L2210/10 ,  H02J2207/20

摘要： A method for monitoring battery cells of a primary on-board electrical system battery of a motor vehicle by galvanostatic impedance spectroscopy is provided. An AC signal having alternating currents of different frequencies is impressed onto the battery cells as an excitation signal, cell voltage signals of the battery cells are detected as frequency-dependent response signals to the excitation signal, impedance spectra of the battery cells are determined depending on the excitation signal and the response signals, and the primary on-board electrical system battery is divided into at least two subsections each having at least one battery cell in order to provide the excitation signal. The primary on-board electrical system battery is electrically connected to a secondary on-board electrical system battery of the motor vehicle.

公开(公告)号：US09399977B2

公开(公告)日：2016-07-26

申请号：US14058540

申请日：2013-10-21

申请人： Bayerische Motoren Werke Aktiengesellschaft

发明人： Gerhard Woelfl ,  Daniel Findeisen ,  Michael Daurer ,  Hartmut Proebstle ,  Sherif Mahmoud ,  Rupert Neudecker

IPC分类号： F02N11/00 ,  H02P7/29 ,  F02N11/08 ,  F02N11/10

CPC分类号： F02N11/00 ,  B60L11/14 ,  B60L2260/26 ,  F02N11/0866 ,  F02N11/087 ,  F02N11/10 ,  F02N2011/0888 ,  H02P7/29 ,  Y02T10/642 ,  Y02T10/70 ,  Y02T10/7077

摘要： A system and method are provided for starting an internal-combustion engine arranged in a vehicle equipped with an electric machine that at least temporarily drives the internal-combustion engine and a first electrical energy storage unit. An adjusting unit is provided by which the electric machine is connectable with the first storage unit. The adjusting unit is configured to detect at least one defined internal-combustion engine operating state and/or at least one defined vehicle operating state and, at least as a function of the detected internal-combustion engine operating state and/or the detected vehicle operating state, for adjusting an electric quantity which determines an electric power drawn from the first storage unit by the electric machine when driving the internal-combustion engine, or for itself adjusting the drawn electric power.

摘要翻译： 提供一种系统和方法，用于启动布置在装备有至少暂时驱动内燃机和第一电能存储单元的电机的车辆中的内燃机。 提供了一种调节单元，通过该调整单元，电机可与第一存储单元连接。 调节单元被配置为检测至少一个限定的内燃机运行状态和/或至少一个限定的车辆操作状态，并且至少根据检测到的内燃机运行状态和/或检测到的车辆操作的函数 状态，用于调节在驱动内燃机时确定由电机从第一存储单元抽取的电力的电量，或者用于自身调整所抽取的电力。