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公开(公告)号：US20180340969A1
公开(公告)日：2018-11-29
申请号：US15776826
申请日：2016-10-28
申请人： Robert Bosch GmbH
摘要： A method for detecting an error in a generator unit which has an electric machine (100) with a rotor winding (110) and a stator winding (120) and a rectifier (130) connected thereto, via which rectifier the electric machine (100) is connected to an electrical system (150) of a motor vehicle, the excitation current (IE) flowing through the rotor winding (110) of the electric machine (100) being plotted and it being concluded that there is an error in the generator unit depending on whether a frequency component (A) of a frequency spectrum of the plot of the excitation current (IE) in a frequency range above a lower speed limit (SW) is larger than a threshold value (S).
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公开(公告)号：US10411625B2
公开(公告)日：2019-09-10
申请号：US15776962
申请日：2016-10-28
申请人： Robert Bosch GmbH
IPC分类号： H02P9/00 , H02P9/08 , H02P29/024 , H02P101/25 , G01P3/48 , G01R31/34
摘要： A method for determining a speed (nG) of a generator unit which has an electric machine (100) with a rotor winding (110) and a stator winding (120) and a rectifier (130) connected thereto, via which rectifier the electric machine (100) is connected to an electrical system (150) of a motor vehicle, the speed (nG) being determined depending on the plot of an excitation current (IE) flowing through the rotor winding (110) of the electric machine (100). In particular, the speed is determined from a known relationship between the speed, the frequency of the excitation current, the number of pole pairs and optionally the number of phases when there is an error that leads to a constant phase voltage being output.
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公开(公告)号：US20180304751A1
公开(公告)日：2018-10-25
申请号：US15779354
申请日：2016-10-28
申请人： Robert Bosch GmbH
发明人： Manuel Mueller , Miriam Riederer , Udo Schulz , Wolfgang Fischer , Zoltan Ersek
CPC分类号： B60L3/0023 , B60R11/02 , G01R31/007 , G01R31/3679 , H02J7/242 , H02P9/30 , H02P29/024
摘要： Method for detecting a state of an electric system (150) in a motor vehicle, said electric system (150) comprising a generator unit that includes an electric machine (100) with a rotor winding (110) and a stator winding (120) as well as a rectifier (130) which is connected to the electric machine (100) and via which the electric system (150) is connected to the electric machine (100); in said method, a decision about the current state of the electric system (150), especially about the availability of a battery (200) of the electric system, is made in accordance with an excitation current (IE) flowing through the rotor winding (110) of the electric machine (100).
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公开(公告)号：US10992162B2
公开(公告)日：2021-04-27
申请号：US15779354
申请日：2016-10-28
申请人： Robert Bosch GmbH
发明人： Manuel Mueller , Miriam Riederer , Udo Schulz , Wolfgang Fischer , Zoltan Ersek
摘要： Method for detecting a state of an electric system (150) in a motor vehicle, said electric system (150) comprising a generator unit that includes an electric machine (100) with a rotor winding (110) and a stator winding (120) as well as a rectifier (130) which is connected to the electric machine (100) and via which the electric system (150) is connected to the electric machine (100); in said method, a decision about the current state of the electric system (150), especially about the availability of a battery (200) of the electric system, is made in accordance with an excitation current (IE) flowing through the rotor winding (110) of the electric machine (100).
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公开(公告)号：US10914776B2
公开(公告)日：2021-02-09
申请号：US16073727
申请日：2016-11-22
申请人： Robert Bosch GmbH
发明人： Manuel Mueller , Sebastian Paulus , Zoltan Ersek
IPC分类号： G01R31/00 , G01R31/34 , B60L3/00 , G01R31/42 , H02P29/024 , B60L3/12 , G01R31/50 , H02P9/00 , H02P101/45 , H02P103/20 , H02P9/48
摘要： The invention relates to a method for detecting an error in a generator unit which has an electric machine (100) with a rotor winding (110), a stator winding (120), and a rectifier (130) connected thereto, via which the electric machine (100) is connected to an onboard electrical system (150) of a motor vehicle, wherein a voltage of the onboard electrical system (150) is controlled to a target value via an excitation current (IE) through the rotor winding (110) of the electric machine (100), and a curve of a phase voltage (Uy) of the stator winding (120) is monitored, wherein an error in the generator unit is inferred when a change of the phase voltage (Uy) is detected and a voltage of the onboard electrical system (150) changing within a threshold value range (S) is detected.
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公开(公告)号：US10788527B2
公开(公告)日：2020-09-29
申请号：US15776826
申请日：2016-10-28
申请人： Robert Bosch GmbH
摘要： A method for detecting an error in a generator unit which has an electric machine (100) with a rotor winding (110) and a stator winding (120) and a rectifier (130) connected thereto, via which rectifier the electric machine (100) is connected to an electrical system (150) of a motor vehicle, the excitation current (IE) flowing through the rotor winding (110) of the electric machine (100) being plotted and it being concluded that there is an error in the generator unit depending on whether a frequency component (A) of a frequency spectrum of the plot of the excitation current (IE) in a frequency range above a lower speed limit (SW) is larger than a threshold value (S).
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公开(公告)号：US10514421B2
公开(公告)日：2019-12-24
申请号：US15778898
申请日：2016-10-28
申请人： Robert Bosch GmbH
发明人： Kurt Reutlinger , Michael Wohlfarth , Miriam Riederer , Paul Mehringer , Manuel Mueller , Sebastian Paulus
摘要： The invention relates to a method for detecting an error in a generator unit which has an electric machine (100) with a rotor winding (110), a stator winding (120) transformer-coupled to the rotor winding (110), and a rectifier (130) connected to said stator winding, via which the electric machine (100) is connected to an onboard power supply (150) of a motor vehicle, wherein a decision is made, depending on a magnitude of a correlation (K1, K2) between a curve of an excitation current (IE) flowing through the rotor winding (110) of the electric machine (100) and a curve of a voltage drop (UY, UDF) on one side of the transformer, as to whether the error is present or not.
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公开(公告)号：US20190011488A1
公开(公告)日：2019-01-10
申请号：US16073727
申请日：2016-11-22
申请人： Robert Bosch GmbH
发明人： Manuel Mueller , Sebastian Paulus , Zoltan Ersek
摘要： The invention relates to a method for detecting an error in a generator unit which has an electric machine (100) with a rotor winding (110), a stator winding (120), and a rectifier (130) connected thereto, via which the electric machine (100) is connected to an onboard electrical system (150) of a motor vehicle, wherein a voltage of the onboard electrical system (150) is controlled to a target value via an excitation current (IE) through the rotor winding (110) of the electric machine (100), and a curve of a phase voltage (UY) of the stator winding (120) is monitored, wherein an error in the generator unit is inferred when a change of the phase voltage (Uy) is detected and a voltage of the onboard electrical system (150) changing within a threshold value range (S) is detected.
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公开(公告)号：US20180331642A1
公开(公告)日：2018-11-15
申请号：US15776962
申请日：2016-10-28
申请人： Robert Bosch GmbH
CPC分类号： H02P9/006 , G01P3/48 , G01R31/343 , H02P9/08 , H02P29/0241 , H02P2101/25 , H02P2203/09
摘要： A method for determining a speed (nG) of a generator unit which has an electric machine (100) with a rotor winding (110) and a stator winding (120) and a rectifier (130) connected thereto, via which rectifier the electric machine (100) is connected to an electrical system (150) of a motor vehicle, the speed (nG) being determined depending on the plot of an excitation current (IE) flowing through the rotor winding (110) of the electric machine (100). In particular, the speed is determined from a known relationship between the speed, the frequency of the excitation current, the number of pole pairs and optionally the number of phases when there is an error that leads to a constant phase voltage being output.
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