Patents by Inventor Marcus Hafkemeyer
Marcus Hafkemeyer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10833352Abstract: A vehicle includes an electric onboard power system, in which electrical components and at least one lithium-ion battery are integrated. The lithium-ion battery includes a plurality of lithium-ion cells, each lithium-ion cell is based on a cell technology, and the cell technologies of at least two lithium-ion cells are different.Type: GrantFiled: September 26, 2014Date of Patent: November 10, 2020Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Markus Mauerer, Sebastian Scharner, Andreas Stoermer, Marcus Hafkemeyer
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Patent number: 9764701Abstract: A motor vehicle energy storage device includes a first electrical energy store characterized by a first characteristic voltage curve defining the open-circuit voltage of the first energy store depending on the relative charge state and by a first characteristic resistance curve defining the internal resistance of the first energy store relevant for a charge process of the energy store, and a second electrical energy store connected in parallel and characterized by a second characteristic voltage curve defining the open-circuit voltage of the second energy store depending on the relative charge state and by a second characteristic resistance curve defining the internal resistance relevant for a charge process of the second energy store.Type: GrantFiled: May 28, 2013Date of Patent: September 19, 2017Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Peter Lamp, Andreas Stoermer, Marcus Hafkemeyer
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Publication number: 20150010786Abstract: A vehicle includes an electric onboard power system, in which electrical components and at least one lithium-ion battery are integrated. The lithium-ion battery includes a plurality of lithium-ion cells, each lithium-ion cell is based on a cell technology, and the cell technologies of at least two lithium-ion cells are different.Type: ApplicationFiled: September 26, 2014Publication date: January 8, 2015Inventors: Markus MAUERER, Sebastian SCHARNER, Andreas STOERMER, Marcus HAFKEMEYER
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Publication number: 20130252035Abstract: A motor vehicle energy storage device includes a first electrical energy store characterized by a first characteristic voltage curve defining the open-circuit voltage of the first energy store depending on the relative charge state and by a first characteristic resistance curve defining the internal resistance of the first energy store relevant for a charge process of the energy store, and a second electrical energy store connected in parallel and characterized by a second characteristic voltage curve defining the open-circuit voltage of the second energy store depending on the relative charge state and by a second characteristic resistance curve defining the internal resistance relevant for a charge process of the second energy store.Type: ApplicationFiled: May 28, 2013Publication date: September 26, 2013Applicant: Bayerische Motoren Werke AktiengesellschaftInventors: Peter LAMP, Andreas STOERMER, Marcus HAFKEMEYER
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Patent number: 8324754Abstract: A system is provided for supplying voltage to electrical loads in the onboard electrical system of a motor vehicle, in which system the onboard electrical system includes at least two onboard electrical system regions. The first onboard electrical system region has an electric generator, a vehicle battery, and one or more first electrical loads, and the second onboard electrical system region has a double-layer capacitor or a so-called supercap, and one or more second electrical loads. A blocking apparatus, in particular a semiconductor diode or a circuit breaker, is provided between the two onboard electrical system regions. The blocking apparatus permits current to flow from the first onboard electrical system region to the second onboard electrical system region and largely prevents current from flowing in reverse from the second onboard electrical system region to the first onboard electrical system region.Type: GrantFiled: February 3, 2009Date of Patent: December 4, 2012Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Andreas Broesse, Dieter Polenov, Hartmut Proebstle, Marcus Hafkemeyer
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Publication number: 20100001581Abstract: A system is provided for supplying voltage to electrical loads in the on board electrical system of a motor vehicle, in which system the onboard electrical system includes at least two onboard electrical system regions. The first onboard electrical system region has an electric generator, a vehicle battery, and one or more first electrical loads, and the second onboard electrical system region has a double-layer capacitor or a so-called supercap, and one or more second electrical loads. A blocking apparatus, in particular a semiconductor diode or a circuit breaker, is provided between the two onboard electrical system regions. The blocking apparatus permits current to flow from the first onboard electrical system region to the second onboard electrical system region and largely prevents current from flowing in reverse from the second onboard electrical system region to the first onboard electrical system region.Type: ApplicationFiled: February 3, 2009Publication date: January 7, 2010Applicant: Bayerische Motoren Werke AktiengesellschaftInventors: Andreas Broesse, Dieter Polenov, Hartmut Proebstle, Marcus Hafkemeyer
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Patent number: 7489113Abstract: An energy storage system for a motor vehicle is provided, including an electric machine, which can be operated at least as a generator, for generating a generator current; a vehicle electrical system battery, which is connected to the electric machine in parallel; a capacitor unit, which is connected to the electric machine in parallel; and a controller for controlling the electric machine. The controller is configured such that if the vehicle is in the boost or braking operating mode, the battery of the vehicle electrical system is charged with a maximum battery charging current, whereas in all other cases the battery of the vehicle electrical system is charged by a battery charging current that is adjusted as a function of the charge state of the battery of the vehicle electrical system. Therefore, in order to adjust the battery charging current as a function of the charge state of the battery of the vehicle electrical system, three different charge states are considered.Type: GrantFiled: January 19, 2007Date of Patent: February 10, 2009Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Hartmut Proebstle, Thomas Christ, Johannes von Grundherr, Marcus Hafkemeyer, Michael Roesler
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Publication number: 20070170896Abstract: An energy storage system for a motor vehicle is provided, including an electric machine, which can be operated at least as a generator, for generating a generator current; a vehicle electrical system battery, which is connected to the electric machine in parallel; a capacitor unit, which is connected to the electric machine in parallel; and a controller for controlling the electric machine. The controller is configured such that if the vehicle is in the boost or braking operating mode, the battery of the vehicle electrical system is charged with a maximum battery charging current, whereas in all other cases the battery of the vehicle electrical system is charged by a battery charging current that is adjusted as a function of the charge state of the battery of the vehicle electrical system. Therefore, in order to adjust the battery charging current as a function of the charge state of the battery of the vehicle electrical system, three different charge states are considered.Type: ApplicationFiled: January 19, 2007Publication date: July 26, 2007Applicant: Bayerische Motoren Werke AktiengesellschaftInventors: Hartmut Proebstle, Thomas Christ, Johannes von Grundherr, Marcus Hafkemeyer, Michael Roesler