# US 11,897,414 B2 · Hinge system of a hood of a vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,897,414 B2 - Document ID: US11897414B2 - Status: Granted - Kind: B2 - Application number: 17/275,095 - Filed: 2019-07-10 - Published: 2022-02-17 - Granted: 2024-02-13 - Earliest claimed: 2018-09-17 - Assignees: Bayerische Motoren Werke Aktiengesellschaft - Applicants: Bayerische Motoren Werke Aktiengesellschaft - Inventors: Alexander Boiger; Michael Kelm; Walter Meierhofer; Walter Widl - Web page: https://patentgrep.com/patent/US11897414B2 ## CPC - B60R 21/38: using means for lifting bonnets - E05D 7/00: Hinges or pivots of special construction (used for special suspension arrangements E05D15/00; so as to be self-closing E05F1/06, E05F1/12; with means for raising wings before being turned E05F7/02) - E05Y 2900/536: Hoods - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR - E05D: HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS (pivotal connections in general F16C11/00) - E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF ## Abstract Please substitute the new Abstract submitted herewith for the original Abstract: A hinge system of a hood of a vehicle has a hinge which is arranged between the hood and a mating element of the vehicle. The hinge is designed both for opening the hood and for raising the hood when the latter is in the closed state, and includes a lifting-piston actuator for initiating a raising movement of the hood. The lifting-piston actuator has a piston element which can be connected to the hinge and/or the hood in a form-fitting manner in order to limit freedom of movement of the hood. ## Claims ### Claim 1 A hinge system of a hood of a vehicle, comprising: a hinge which is arranged between the hood and a counter-element of the vehicle, wherein the hinge is configured both for opening the hood and for lifting the hood in a closed state; and a lifting-piston actuator for introducing a lifting movement of the hood, wherein the lifting-piston actuator has a piston element which is connectable to the hinge and/or to the hood in a form-fitting connection, in order to limit a freedom of movement of the hood, wherein the hinge has a strap element with a holding region for the form-fitting connection to the piston element, the holding region is movable by the hinge in a piston displacement of the piston element, the holding region is a region of a through-opening in the strap element, the through-opening comprises a through-region with a larger cross section than the holding region, and the piston element is passable through the strap element at the through-region and not passable through the strap element at the holding region. ### Claim 2 (depends on 1) The hinge system according to claim 1, wherein the piston element has a flange-shaped region which is larger in size than the holding region but is smaller in size than the through-region. ### Claim 3 (depends on 1) The hinge system according to claim 1, further comprising: an elastic element for application of a force to the piston element in a direction of the holding region and/or for blocking the piston element in the holding region. ### Claim 4 A hinge system of a hood of a vehicle, comprising: a hinge which is arranged between the hood and a counter-element of the vehicle, wherein the hinge is configured both for opening the hood and for lifting the hood in a closed state; and a lifting-piston actuator for introducing a lifting movement of the hood, wherein the lifting-piston actuator has a piston element which is connectable to the hinge and/or to the hood in a form-fitting connection, in order to limit a freedom of movement of the hood in a lifting direction, wherein the hinge comprises: a hinge upper part with a main link and a hood part; two links which are each attached rotatably to the main link and to the counter-element of the vehicle, in order to produce a four-bar mechanism, wherein the hood part is configured for fastening to the hood, wherein the hood part is fastened to the main link so as to be rotatable at a bearing point and is connected to the main link in a non-rotatable manner by a fixing element, and wherein the fixing element is releasable by the lifting-piston actuator, in order to achieve torsion between the hood part and the main link. ### Claim 5 (depends on 4) The hinge system according to claim 4, wherein the hinge has a strap element with a holding region for the form-fitting connection to the piston element, the holding region is movable by the hinge in a piston displacement of the piston element, and the strap element is fixedly coupled with the hinge upper part. ### Claim 6 (depends on 4) The hinge system according to claim 4, wherein the hinge has a strap element with a holding region for the form-fitting connection to the piston element, the holding region is movable by the hinge in a piston displacement of the piston element, and the strap element is fastened to the main link. ### Claim 7 (depends on 4) The hinge system according to claim 4, wherein the fixing element has a predetermined breaking point that can be broken by the lifting-piston actuator and/or a latch device which can be actuated by the lifting-piston actuator. ### Claim 8 (depends on 4) The hinge system according to claim 4, wherein the hood part is mounted via a holding element in a slot of the main link, so that a maximum torsion angle is established between the main link and the hood part. ### Claim 9 A vehicle, comprising: a hood; and a hinge system comprising: a hinge which is arranged between the hood and a counter-element of the vehicle, wherein the hinge is configured both for opening the hood and for lifting the hood in a closed state; and a lifting-piston actuator for introducing a lifting movement of the hood, wherein the lifting-piston actuator has a piston element which is connectable to the hinge and/or to the hood in a form-fitting connection, in order to limit a freedom of movement of the hood, the hinge has a strap element with a holding region for the form-fitting connection to the piston element, the holding region is movable by the hinge in a piston displacement of the piston element, the holding region is a region of a through-opening in the strap element, the through-opening comprises a through-region with a larger cross section than the holding region, the piston element is passable through the strap element at the through-region and not passable through the strap element at the holding region, wherein the hood is lifted by the hinge system to a predefined protection height, and during the lifting action, an overswing is limited to maximum of 25% above the predefined protection height. ### Claim 10 (depends on 9) The vehicle according to claim 9, wherein the predefined protection height is approximately 60 mm.