-
公开(公告)号：US20240210465A1
公开(公告)日：2024-06-27
申请号：US18556158
申请日：2022-04-29
申请人： Robert Bosch GmbH
发明人： Andreas Schmidtlein , Simeon Lange
CPC分类号： G01R31/2817 , G01R31/2642
摘要： A method for determining wear in an electronic unit, in particular a power electronics unit, which includes at least one electronic component, in particular a semiconductor component, capacitor or the like. The unit is subjected to a test procedure in which at least two predefinable electrical load cycles are applied to the unit, in which cycles the unit is operated in each case in order to simulate at least one selected operating mode for a predefined period of time. During the test procedure, electromagnetic waves generated by the unit by an electrical load resulting from the application of the at least two load cycles to the unit are detected for at least two of the load cycles, and the detected electromagnetic waves of the at least two load cycles are compared with one another in order to detect wear in the unit.
-
公开(公告)号：US11705839B2
公开(公告)日：2023-07-18
申请号：US17630485
申请日：2020-07-01
申请人： Robert Bosch GmbH
IPC分类号： H02P21/09
CPC分类号： H02P21/09
摘要： A control unit for operating an electrical machine which includes a rotor, a stator, and power electronics. The power electronics have a plurality of switching elements, by which the phases of the stator winding are connected/connectible electrically to an electrical energy store. The control unit includes first and second processing units and is configured to determine control signals for controlling the switching elements, using the processing units. The first processing unit is configured to determine a magnitude of a setpoint voltage vector for the phases based on a setpoint rotational speed of the rotor and an actual rotational speed of the rotor. The second processing unit is connected to the first processing unit so as to be able to communicate with it, and being configured to determine the control signals as a function of the magnitude of the setpoint voltage vector and an actual angle of rotation of the rotor.
-
公开(公告)号：US20210072773A1
公开(公告)日：2021-03-11
申请号：US17048663
申请日：2019-04-05
申请人： Robert Bosch GmbH
IPC分类号： G05D7/06 , G05B19/4155
摘要： A method for actuating a valve with an electromagnetic valve drive through which electric current is conducted to open or close the valve or to hold the valve in an open or closed position includes receiving an opening signal, determining an adapted opening signal which is adapted to physical limits of the valve or valve drive, and determining a feed-forward signal for feed-forward control of an electric current to drive the electromagnetic valve drive to open the valve in reaction to the adapted opening signal. The method further includes calculating an actuation signal for actuating the valve drive using the feed-forward signal, and outputting the actuation signal.
-
公开(公告)号：US10097121B2
公开(公告)日：2018-10-09
申请号：US15287550
申请日：2016-10-06
申请人： Robert Bosch GmbH
摘要： A method and a device for controlling an electric motor using pulse-width modulated control signals. Control pulses having a setpoint duty factor and temporally varying pulse widths and pulse spacing are generated in the process, the temporally varying pulse widths and pulse spacing being selected as a function of a load and/or thermal loading of the electric motor and/or its control device.
-
5.发明授权公开(公告)号：US11912257B2
公开(公告)日：2024-02-27
申请号：US17040649
申请日：2019-03-07
申请人： Robert Bosch GmbH
CPC分类号： B60T8/1755 , B60T7/12 , B60T13/20 , B60T13/662 , B60T17/221 , H02P6/16 , B60T2270/10 , B60T2270/306
摘要： A method is provided for controlling a driving dynamics control unit for influencing the braking of wheels of a motor vehicle. The driving dynamics control device having a pump, which includes at least two pump elements for the supply of brake fluid, and an electric motor, which includes a rotor and a stator for driving the pump elements. The method includes the following steps: detecting the position of the rotor relative to the stator, and adjusting an ideal position of the rotor relative to the stator, the sum of the torques for moving the pump elements lying below a predefined torque limit value, in particular being minimal, in the ideal position.
-
公开(公告)号：US11650606B2
公开(公告)日：2023-05-16
申请号：US17048663
申请日：2019-04-05
申请人： Robert Bosch GmbH
IPC分类号： G05B19/41 , G05D7/06 , G05B19/4155
CPC分类号： G05D7/0635 , G05B19/4155 , G05D7/0623 , G05B2219/45006
摘要： A method for actuating a valve with an electromagnetic valve drive through which electric current is conducted to open or close the valve or to hold the valve in an open or closed position includes receiving an opening signal, determining an adapted opening signal which is adapted to physical limits of the valve or valve drive, and determining a feed-forward signal for feed-forward control of an electric current to drive the electromagnetic valve drive to open the valve in reaction to the adapted opening signal. The method further includes calculating an actuation signal for actuating the valve drive using the feed-forward signal, and outputting the actuation signal.
-
公开(公告)号：US11077836B2
公开(公告)日：2021-08-03
申请号：US16382979
申请日：2019-04-12
申请人： Robert Bosch GmbH
发明人： Christoph Emde , Heiko Druckenmueller , Holger Kurz , Patrick Schellnegger , Yakup Navruz , Andreas Schmidtlein
摘要： In a method for controlling a hydraulic braking system, wherein the braking system includes a hydraulic pump that is driven by an electric motor so as to generate a volume of fluid flow for the hydraulic braking system. the electric motor is controlled in such a manner that fluid pulsation in the hydraulic braking system is counteracted by means of modulating a rotational speed of the electric motor. The modulation is generated by means of the control procedure. Furthermore, a device is designed and configured so as to perform the method.
-
8.发明申请公开(公告)号：US20210016751A1
公开(公告)日：2021-01-21
申请号：US17040649
申请日：2019-03-07
申请人： Robert Bosch GmbH
摘要： A method is provided for controlling a driving dynamics control unit for influencing the braking of wheels of a motor vehicle. The driving dynamics control device having a pump, which includes at least two pump elements for the supply of brake fluid, and an electric motor, which includes a rotor and a stator for driving the pump elements. The method includes the following steps: detecting the position of the rotor relative to the stator, and adjusting an ideal position of the rotor relative to the stator, the sum of the torques for moving the pump elements lying below a predefined torque limit value, in particular being minimal, in the ideal position.
-
公开(公告)号：US20220255478A1
公开(公告)日：2022-08-11
申请号：US17630485
申请日：2020-07-01
申请人： Robert Bosch GmbH
IPC分类号： H02P21/09
摘要： A control unit for operating an electrical machine which includes a rotor, a stator, and power electronics. The power electronics have a plurality of switching elements, by which the phases of the stator winding are connected/connectible electrically to an electrical energy store. The control unit includes first and second processing units and is configured to determine control signals for controlling the switching elements, using the processing units. The first processing unit is configured to determine a magnitude of a setpoint voltage vector for the phases based on a setpoint rotational speed of the rotor and an actual rotational speed of the rotor. The second processing unit is connected to the first processing unit so as to be able to communicate with it, and being configured to determine the control signals as a function of the magnitude of the setpoint voltage vector and an actual angle of rotation of the rotor.
-
10.发明授权公开(公告)号：US09590544B2
公开(公告)日：2017-03-07
申请号：US14647753
申请日：2013-09-27
申请人： Robert Bosch GmbH
摘要： A method for operating an electric motor connectable via a switching device to a current source and connected in parallel with a freewheeling device, the switching device having control applied to it at a specific activation ratio within each working cycle to establish a desired effective operating voltage of the electric motor, so that in at least one operating mode each working cycle is includes an activation and a freewheeling time period. The freewheeling device has a freewheeling transistor and a freewheeling diode, connected in parallel with the transistor and reverse-biased as to the current source; and control is applied to the freewheeling transistor in the freewheeling time period as follows: identifying the freewheeling voltage dropping across the electric motor; and switching the freewheeling transistor for a specific switching time period if the freewheeling voltage is different from zero, particularly less than zero. Also described is an electric motor device.
摘要翻译： 一种用于操作经由开关装置连接到电流源并与续流装置并联连接的电动马达的方法，所述开关装置具有在每个工作周期内以特定的启动比施加到其上的控制，以建立期望的有效工作电压 电动机，使得在至少一个操作模式中，每个工作循环包括激活和续流时间段。 续流器件具有续流晶体管和续流二极管，与晶体管并联连接，并对电流源进行反向偏置; 并且在续流时间段中对续流晶体管进行如下控制：识别掉在电动机上的续流电压; 并且如果续流电压不同于零，特别是小于零，则将续流晶体管切换到特定的开关时间段。 还描述了一种电动机装置。
-
-
-
-
-
-
-
-
-
搜索结果
15 条记录 (耗时 0.014 秒)
