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公开(公告)号：US10965146B2
公开(公告)日：2021-03-30
申请号：US15710882
申请日：2017-09-21
摘要： The present patent application relates to a high-voltage motor vehicle electrical system comprising an electrical heating device and at least on further consumer during switching on of which, undesired electromagnetic oscillations may occur in the electrical system. According to the invention, these are suppressed by initially switching on the heating device, before the further consumer is switched on. Switching on the heating device changes the complete impedance of the electrical system such that a resonant enhancement of the interference oscillations is prevented. Preferably, the heating device is switched on only as shortly as possible (only during the switching on process of the further consumer) in order to minimize an undesired heating.
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公开(公告)号：US11473548B2
公开(公告)日：2022-10-18
申请号：US16996006
申请日：2020-08-18
摘要： An electrical load resistance includes a housing having at least one U-shaped receiving pocket, in which at least one PTC heating element is accommodated. The PTC heating element includes at least one PTC element and at least one contact plate electrically conductively connected to the PTC element for energizing the PTC element. The contact plate has a terminal lug for plug contacting the PTC element, and the PTC heating element abuts at least on opposite main side surfaces of the receiving pocket in a heat-conducting manner and projects beyond the terminal lug of the receiving pocket. The housing of the electrical load resistance is closed, and thus has no inlet or outlet openings for a medium to be heated. Also provided is a device with an electrical load resistance for reducing the starting time of an internal combustion engine, a method for reducing the starting time of an internal combustion engine, and a use of a PTC heating device as an electrical load resistance for reducing the starting time of an internal combustion engine.
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公开(公告)号：US20180083479A1
公开(公告)日：2018-03-22
申请号：US15710882
申请日：2017-09-21
CPC分类号： H02J7/1423 , B60H1/2218 , B60H2001/2253 , B60L1/00 , B60L1/08 , B60L50/50 , B60L58/10 , B60L58/24 , B60L2240/427 , B60L2240/429 , B60L2270/147 , H02J1/02 , Y02T10/642 , Y02T10/7005
摘要： The present patent application relates to a high-voltage motor vehicle electrical system comprising an electrical heating device and at least on further consumer during switching on of which, undesired electromagnetic oscillations may occur in the electrical system. According to the invention, these are suppressed by initially switching on the heating device, before the further consumer is switched on. Switching on the heating device changes the complete impedance of the electrical system such that a resonant enhancement of the interference oscillations is prevented. Preferably, the heating device is switched on only as shortly as possible (only during the switching on process of the further consumer) in order to minimize an undesired heating.
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