-
公开(公告)号：US20240296702A1
公开(公告)日：2024-09-05
申请号：US18176902
申请日：2023-03-01
发明人： Amit ANEJA , Rahul GULATI , Sriram HARIHARAN
CPC分类号： G07C5/0808 , G01R31/007 , B60R16/023 , B60W50/0225
摘要： Fail-safe and Fail-operational behavior can be achieved by providing two fully-redundant execution channels comprising at least first and second chiplet dies on a single SoC that are in communication with one another via a D2D interface. At least first and second instances of a first automotive safety integrity level (ASIL) domain circuit disposed on the at least first and second chiplet dies, respectively, perform at least a first ASIL domain process on one or more automotive sensor output signals to produce first and second output signals, respectively. A fault monitoring system monitors at least the first chiplet die for faults and assigns a first value to a selector signal if it detects a fault in the first chiplet die. A selector circuit outputs the second output signal from the system if the selector signal has the first value.
-
公开(公告)号：US20240241190A1
公开(公告)日：2024-07-18
申请号：US18154390
申请日：2023-01-13
CPC分类号： G01R31/52 , G01R31/007
摘要： A method of detecting ground loss of an electrical component includes monitoring a ground circuit including a first ground line connected to the electrical component and a second ground line connected to the electrical component, where the monitoring includes measuring a current through each of the first ground line and the second ground line, and measuring a voltage through each of the first ground line and the second ground line. The method also includes calculating a first resistance of the first ground line and a second resistance of the second ground line based on the measured current and the measured voltage, estimating a difference between the first resistance and the second resistance, and comparing the estimated difference to a threshold difference, and based on the estimated difference being greater than the threshold difference, detecting a ground fault, and outputting an indication of the ground fault.
-
公开(公告)号：US20240219480A1
公开(公告)日：2024-07-04
申请号：US18392035
申请日：2023-12-21
申请人： Robert Bosch GmbH
CPC分类号： G01R31/52 , G01R31/007
摘要： A method for detecting a short circuit in a wiring harness that contacts an electric device. The method includes: carrying out a first and second test measurements, in which a first and second predefined electric current is applied to an electric device connected to a line to be monitored of the wiring harness and resulting first and second electric voltages are detected, the second electric current being greater than the first electric current; ascertaining a measurement current based on a predefined target electric voltage by interpolation from the first and second electric currents and the first and second electric voltages; and carrying out a measurement in which the measurement current is applied to the electric device connected to the line and a resulting electric measurement voltage is detected; wherein a short circuit is detected based on a comparison of the measurement voltage and the target voltage.
-
公开(公告)号：US20240219205A1
公开(公告)日：2024-07-04
申请号：US18285762
申请日：2022-05-23
发明人： Yannick Leroy , Thierry Bavois
CPC分类号： G01D3/08 , F02D41/009 , F02D41/222 , G01R31/007 , G01R31/2829
摘要： A diagnostic device for a sensor for measuring the position of a motor-vehicle drive shaft. The sensor includes a first wired communication link and a second wired communication link, via which wired communication links the sensor sends the signal, and being characterized by an average reference voltage. The diagnostic device for a sensor being intended to be electrically connected between the first wired communication link and the second wired communication link and being configured to: a) receive a first voltage value corresponding to the average voltage in the first wired communication link and a second voltage value corresponding to the average voltage in the second wired communication link; b) detect a short circuit on the first wired communication link; or c) detect a short circuit on the second wired communication link.
-
公开(公告)号：US11933831B2
公开(公告)日：2024-03-19
申请号：US17766993
申请日：2020-09-28
发明人： Urs Boehme , André Haspel
CPC分类号： G01R31/007 , B60L3/0046 , G01R31/40
摘要： A method for monitoring at least one Y-capacitance of an electrical on-board power supply of a vehicle includes ascertaining a current capacitance value of the at least one Y-capacitance and a current on-board power supply voltage of the electrical on-board power supply. The method further includes determining a currently stored amount of energy in the at least one Y-capacitance depending on the current on-board power supply voltage of the electrical on-board power supply and the current capacitance value of the at least one Y-capacitance of the electrical on-board power supply, comparing the currently stored amount of energy in the at least one Y-capacitance to a predetermined threshold value, and generating a control signal when the predetermined threshold value is exceeded in the comparing.
-
公开(公告)号：US11892863B2
公开(公告)日：2024-02-06
申请号：US16575488
申请日：2019-09-19
申请人： Ian R. Vinci , Peter Vinci
发明人： Ian R. Vinci , Peter Vinci , Richard A. Frantz
CPC分类号： G05F3/02 , G01R31/007 , B60R16/02
摘要： An electronic device for simulating load currents when testing a tow-vehicle brake controller is described. The electronic device utilizes current monitoring circuitry to measure a current of an input signal from the tow vehicle. The electronic device also includes a series of resistors that are arranged in parallel on the input signal as wells a series of switches (e.g., relays or transistors) that can activate and deactivate each one of the resistors. Microcontroller circuitry within the electronic device controls the series of switches based on the measured current of the input signal, and, by extension, controls the series of resistors applied to the input signal. In so doing, the electronic device is able to simulate a desired load current on the tow-vehicle brake controller being tested.
-
7.发明授权公开(公告)号：US11879908B2
公开(公告)日：2024-01-23
申请号：US17652203
申请日：2022-02-23
发明人： Julien Maitre , Maxime Valero , Benjamin Foras
CPC分类号： G01R31/007 , B60L58/12 , G01R21/133 , H02H1/0007 , H02H3/08 , B60L2200/40
摘要： A control method for determining an operational status of an electrical load of a heavy-duty vehicle includes measuring a global current consumption of the electrical network when the electrical load is not activated, detecting an activation of the electrical load, measuring the global current consumption of the electrical network after the electrical load has been activated, determining an electrical current consumption of the electrical load, determining a reference current consumption of the electrical load, if the difference between the determined electrical current consumption of the electrical load and the determined reference current consumption is higher than a first predetermined threshold and lower than a second predetermined threshold, the second predetermined threshold being higher than the first predetermined threshold, set the operational status of the electrical load to a first status called “nominal operation”.
-
公开(公告)号：US20240003953A1
公开(公告)日：2024-01-04
申请号：US18038199
申请日：2021-11-12
发明人： Longhui ZHONG , Dongdong XU , Fuqi LIU
IPC分类号： G01R31/00 , G01M17/007 , G07C5/08 , G07C5/00
CPC分类号： G01R31/007 , G01M17/007 , G07C5/0808 , G07C5/008
摘要： A vehicle inspection method, apparatus and device is disclosed. The method is applied to a vehicle inspection system including an oscilloscope, and the method includes: acquiring information about a to-be-measured vehicle; acquiring and displaying a measured item associated with information about the to-be-measured vehicle; receiving a user selection operation on the measured item to obtain a selected measured item; acquiring and displaying measurement guidance information corresponding to the selected measured item to prompt a user to connect the vehicle inspection system to the measured item according to the measurement guidance information; and measuring the selected measured item, and displaying a signal waveform corresponding to the measured item when a measurement start instruction of a user is received. In this way, embodiments of the present invention can greatly reduce the threshold for use of a vehicle inspection system, improve vehicle inspection efficiency, simplify user operations, and enhance user experience.
-
公开(公告)号：US11860211B2
公开(公告)日：2024-01-02
申请号：US17545429
申请日：2021-12-08
IPC分类号： B60L3/00 , G01R31/00 , G01R19/165 , B60L50/51
CPC分类号： G01R31/007 , B60L50/51 , G01R19/16528
摘要： Systems and methods are described for monitoring a high voltage electrical system in a vehicle. An interface circuit is configured to provide isolation between a high voltage component of the vehicle and a control module. The interface circuit comprises a high voltage constant current source, a voltage threshold detector and an electrical isolation circuit. The high voltage constant current source is configured to receive an input at a first voltage from the high voltage component. The voltage threshold detector is configured to receive an output from the high voltage constant current source and to output a signal to indicate whether the voltage of the high voltage component is at, or below, a desired voltage. The electrical isolation circuit is configured to receive the output signal from the voltage threshold detector, decouple the output signal from the high voltage component and, in response to receiving the output signal from the voltage threshold detector, output a signal at a second voltage to the control module.
-
公开(公告)号：US11833910B2
公开(公告)日：2023-12-05
申请号：US17653585
申请日：2022-03-04
发明人： Bostjan Bitene
CPC分类号： B60L3/0069 , B60L3/0046 , G01R27/025 , G01R27/18 , G01R31/007
摘要： A method of monitoring a battery system includes connecting a voltage divider circuit to a battery of the battery system; measuring a first battery voltage; sampling a first chassis voltage for less than a settling time of the first chassis voltage and estimating a settled value of the first chassis voltage using sampled values of the first chassis voltage; changing a configuration of the voltage divider circuit; measuring a second battery voltage; sampling a second chassis voltage for less than a settling time of the second chassis voltage and estimating a settled value of the second chassis voltage using sampled values of the second chassis voltage; and determining isolation impedance of the battery to a chassis using the first and second battery voltages and the estimated settled values of the first and second chassis voltages.
-
-
-
-
-
-
-
-
-
搜索结果
1013 条记录 (耗时 0.023 秒)
