Advanced pedestrian sensing system for vehicles with active hood

    公开(公告)号:US10974675B2

    公开(公告)日:2021-04-13

    申请号:US16003496

    申请日:2018-06-08

    Abstract: A method for operating an automobile vehicle pedestrian sensing system includes: embedding multiple piezoelectric sensors in a vehicle bumper fascia, each generating a voltage in response to an impact of an object with the fascia; retrieving multiple threshold values from a memory, each assigned to one of the sensors; reading the voltage from each of the sensors; grouping individual sensors into multiple different logic circuits, each including at least two of the sensors; determining for each sensor in each of the logic circuits if the voltage is greater than the assigned threshold value; creating a positive signal following any one of the logic circuits when the voltage is determined to be greater than the assigned threshold value for the sensors grouped into the one of the logic circuits; and generating a hood deployment system deployment signal when the positive signal is output from all of the logic circuits.

    Local energy absorber
    3.
    发明授权

    公开(公告)号:US10023239B2

    公开(公告)日:2018-07-17

    申请号:US15173149

    申请日:2016-06-03

    Abstract: A vehicle hood covering an underhood object includes an inner surface of the vehicle hood facing the underhood object and spaced from the underhood object, and an outer surface of the vehicle hood opposite the inner surface. A local energy absorber is operatively attached to the inner surface of the vehicle hood. The local energy absorber is a multiply-connected structure. The local energy absorber includes a wall defining an interior surface having symmetry about a central plane normal to the inner surface of the vehicle hood. A plurality of apertures is defined in the wall symmetrically about the central plane to initiate buckling and fracture in the wall during an impact applied to the outer surface defining an impact event having a duration of less than 20 milliseconds.

    Local energy absorber
    4.
    发明授权
    Local energy absorber 有权
    本地能量吸收器

    公开(公告)号:US09381879B2

    公开(公告)日:2016-07-05

    申请号:US14539132

    申请日:2014-11-12

    Abstract: A vehicle hood covering an underhood object includes an inner surface of the vehicle hood facing the underhood object and spaced from the underhood object, and an outer surface of the vehicle hood opposite the inner surface. A local energy absorber is operatively attached to the inner surface of the vehicle hood. The local energy absorber is a multiply-connected structure. The local energy absorber includes a wall defining an interior surface having symmetry about a central plane normal to the inner surface of the vehicle hood. A plurality of apertures is defined in the wall symmetrically about the central plane to initiate buckling and fracture in the wall during an impact applied to the outer surface defining an impact event having a duration of less than 20 milliseconds.

    Abstract translation: 覆盖下层物体的车罩包括面向底座物体的车辆罩的内表面并与底座物体间隔开,车辆罩的外表面与内表面相对。 局部能量吸收器可操作地附接到车辆罩的内表面。 当地的能量吸收器是一个多重连接的结构。 局部能量吸收器包括限定内部表面的壁,所述内表面具有围绕与车辆罩的内表面垂直的中心平面对称的内表面。 围绕中心平面对称地在壁中限定多个孔,以在施加到外表面的冲击期间在壁中起始弯曲和断裂,限定持续时间小于20毫秒的冲击事件。

    Local energy absorber
    5.
    发明授权

    公开(公告)号:US10696332B2

    公开(公告)日:2020-06-30

    申请号:US16036051

    申请日:2018-07-16

    Abstract: A vehicle hood covering an underhood object includes an inner surface of the vehicle hood facing the underhood object and spaced from the underhood object, and an outer surface of the vehicle hood opposite the inner surface. A local energy absorber is operatively attached to the inner surface of the vehicle hood. The local energy absorber is a multiply-connected structure. The local energy absorber includes a wall defining an interior surface having symmetry about a central plane normal to the inner surface of the vehicle hood. A plurality of apertures is defined in the wall symmetrically about the central plane to initiate buckling and fracture in the wall during an impact applied to the outer surface defining an impact event having a duration of less than 20 milliseconds.

    LOCAL ENERGY ABSORBER
    6.
    发明申请
    LOCAL ENERGY ABSORBER 有权
    本地能源吸收器

    公开(公告)号:US20160280280A1

    公开(公告)日:2016-09-29

    申请号:US15173149

    申请日:2016-06-03

    Abstract: A vehicle hood covering an underhood object includes an inner surface of the vehicle hood facing the underhood object and spaced from the underhood object, and an outer surface of the vehicle hood opposite the inner surface. A local energy absorber is operatively attached to the inner surface of the vehicle hood. The local energy absorber is a multiply-connected structure. The local energy absorber includes a wall defining an interior surface having symmetry about a central plane normal to the inner surface of the vehicle hood. A plurality of apertures is defined in the wall symmetrically about the central plane to initiate buckling and fracture in the wall during an impact applied to the outer surface defining an impact event having a duration of less than 20 milliseconds.

    Abstract translation: 覆盖下层物体的车罩包括面向底座物体的车辆罩的内表面并与底座物体间隔开,车辆罩的外表面与内表面相对。 局部能量吸收器可操作地附接到车辆罩的内表面。 当地的能量吸收器是一个多重连接的结构。 局部能量吸收器包括限定内部表面的壁,所述内表面具有围绕与车辆罩的内表面垂直的中心平面对称的内表面。 围绕中心平面对称地在壁中限定多个孔,以在施加到外表面的冲击期间在壁中起始弯曲和断裂,限定持续时间小于20毫秒的冲击事件。

    TWO-PIECE LIGHTWEIGHT METAL-POLYMER HYBRID STRUCTURES
    7.
    发明申请
    TWO-PIECE LIGHTWEIGHT METAL-POLYMER HYBRID STRUCTURES 有权
    双层轻金属聚合物混合结构

    公开(公告)号:US20160200370A1

    公开(公告)日:2016-07-14

    申请号:US14597176

    申请日:2015-01-14

    Abstract: An approach to designing lightweight metal-polymer composite structures in a manner that decomposes the structure into at least two parts. In one specific embodiment, the approach is a manufacturing process for a vehicle that includes attaching an impact beam to a vehicle structure. The process includes providing a vehicle structure including a back plate of the impact beam being made of a suitable material, such as a metal, that can withstand high temperature processes. A front part of the impact beam including a front plate and a polymer core is attached to the back plate. The back plate is designed to provide structural integrity that allows the vehicle structure to go through the high temperature processes and/or the vehicle structure provides structural integrity that allows the back plate to go through the one or more processes. The back plate is also designed to provide desired functional characteristics of the beam.

    Abstract translation: 以将结构分解为至少两部分的方式设计轻质金属 - 聚合物复合结构的方法。 在一个具体实施例中,该方法是一种用于车辆的制造过程,其包括将冲击梁附接到车辆结构。 该方法包括提供一种车辆结构,该车辆结构包括由可承受高温过程的合适材料(例如金属)制成的冲击梁的后板。 包括前板和聚合物芯的冲击梁的前部附接到背板。 后板被设计成提供结构完整性,其允许车辆结构经历高温过程和/或车辆结构提供允许后板通过一个或多个过程的结构完整性。 背板也被设计成提供梁的期望的功能特性。

    SYSTEM OF ON-DEMAND TUNABLE STIFFNESS FOR PEDESTRIAN PROTECTION

    公开(公告)号:US20250121793A1

    公开(公告)日:2025-04-17

    申请号:US18488210

    申请日:2023-10-17

    Abstract: A vehicle includes a first vehicle component having a shape memory polymer (SMP) including a first modulus of elasticity in a first state and a second modulus of elasticity in a second state, the second modulus of elasticity being less than the first modulus of elasticity, a heating element selectively movable from an OFF state to an ON state to supply the SMP with heat, the SMP moving from the first state to the second state in response to the heating element moving from the OFF state to the ON state, and at least one sensor attached to the vehicle and configured to generate an electric signal in response to a force of a predetermined magnitude being applied to the vehicle to move the heating element from the OFF state to the ON state.

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