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US 2009/0024323 A1Published application
Collision detecting device
AssigneeDenso Corporation
InventorTakatoshi Tanabe
Life of this patent
Estimating the term…
Abstract
A collision detecting device includes a chamber member providing a chamber, a pressure sensor connected to the chamber member, and a bumper absorber absorbing an impact generated by collision of an object with the vehicle. The bumper absorber has a region, which has a thickness in a front-rear direction of the vehicle. The thickness of the region is equal to or smaller than a predetermined thickness. The region is in contact with at least a portion of the chamber member. The collision is detected based on the pressure of the chamber detected by the pressure sensor. Hereby, a collision detecting device in which the bumper absorber has sufficient rigidity, and the chamber has sufficient deformability in case of collision can be obtained.
Claims19
A collision detecting device for a vehicle comprising:
- a chamber member providing a space, and arranged in front of a bumper reinforcement extending in a lateral direction of the vehicle;
- a pressure sensor connected to the chamber member, and detecting a pressure inside the space;
- and
- a bumper absorber absorbing an impact generated by collision of an object with the vehicle, and arranged in front of the bumper reinforcement,
- wherein the bumper absorber has a region, which has a thickness in a front-rear direction of the vehicle,
- wherein the thickness of the region is equal to or smaller than a predetermined thickness,
- wherein the region is in contact with at least a portion of the chamber member, and
- wherein the collision is detected based on the pressure of the space detected by the pressure sensor.
5 more elements
A collision detecting device for a vehicle comprising:
- a chamber member providing a space, and arranged in front of a bumper reinforcement extending in a lateral direction of the vehicle;
- a pressure sensor connected to the chamber member, and detecting a pressure inside the space;
- and
- a bumper absorber absorbing an impact generated by collision of an object with the vehicle, and arranged in front of the bumper reinforcement,
- wherein the bumper absorber includes at least one of a concave portion and a hollow portion,
- wherein a portion of the chamber member is accommodated in the at least one of the concave portion and the hollow portion, and
- wherein the collision is detected based on the pressure of the space detected by the pressure sensor.
4 more elements
A collision detecting device for a vehicle comprising:
- a chamber member providing a space, and arranged in front of a bumper reinforcement extending in a lateral direction of the vehicle;
- a pressure sensor connected to the chamber member, and detecting a pressure inside the space;
- and
- a bumper absorber absorbing an impact generated by collision of an object with the vehicle, and arranged in front of the bumper reinforcement,
- wherein a rear side end surface of the chamber member is in contact with a front surface of the bumper reinforcement,
- wherein the bumper absorber includes a main body portion and a deformation portion,
- wherein a rear side end surface of the bumper absorber is in contact with a front surface of the chamber member,
- wherein the main body portion extends to a front side of the chamber member and has a predetermined rigidity,
- wherein the deformation portion extends from a rear side of the main body portion to a rear direction of the vehicle, and a rear side end surface of the deformation portion is in contact with a front surface of the bumper reinforcement,
- wherein the deformation portion starts to compress and deform the chamber member when a load applied to the main body portion reaches greater than or equal to 2 kN and less than or equal to 6 kN, and
- wherein the collision is detected based on the pressure of the space detected by the pressure sensor.
8 more elements
A collision detecting device for a vehicle comprising:
- a chamber member providing a space, and arranged in front of a bumper reinforcement extending in a lateral direction of the vehicle;
- a pressure sensor connected to the chamber member, and detecting a pressure inside the space;
- and
- a bumper absorber absorbing an impact generated by collision of an object with the vehicle, and arranged in front of the bumper reinforcement,
- wherein the bumper absorber has a predetermined rigidity,
- wherein a rear side end surface of the bumper absorber is in contact with a front surface of the chamber member,
- wherein a rear side end surface of the chamber member is in contact with a front surface of the bumper reinforcement,
- wherein the chamber member is compressed and deformed when a load applied to the bumper absorber reaches greater than or equal to 2 kN and less than or equal to 6 kN, and
- wherein the collision is detected based on the pressure of the space detected by the pressure sensor.
6 more elements
A collision detecting device for a vehicle comprising:
- a chamber member providing a space, and arranged in front of a bumper reinforcement extending in a lateral direction of the vehicle;
- a pressure sensor connected to the chamber member, and detecting a pressure inside the space;
- and
- a bumper absorber absorbing an impact generated by collision of an object with the vehicle, and arranged in front of the bumper reinforcement,
- wherein the bumper absorber has a predetermined rigidity,
- wherein a rear side end surface of the bumper absorber is in contact with a front surface of the bumper reinforcement,
- wherein a rear side end surface of the chamber member is in contact with a front surface of the bumper absorber,
- wherein the chamber member is compressed and deformed when a load applied to the chamber member reaches greater than or equal to 2 kN and less than or equal to 6 kN, and
- wherein the collision is detected based on the pressure of the space detected by the pressure sensor.
6 more elements
Dependencies are inferred from the claim text.