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US 10,196,023 B2Granted
Vehicle collision detection system
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTakashi Fujinami, Yusuke Mase, Hisashi Hagiwara, Jiro Ohachi
Life of this patent
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Abstract
A vehicle collision detection system that includes: a controller that actuates an occupant restraint device in a case in which a collision between a vehicle and an object has been predicted by a collision prediction section, a collision mode has been determined to be an underride mode by a determination section, the object has been determined to be another vehicle by the determination section, and an acceleration detected by a first acceleration sensor is at or above an underride-mode-actuation determination threshold that is lower than a normal-actuation determination threshold for the occupant restraint device.
Claims7
A vehicle collision detection system comprising:
- a collision prediction section that includes a first processor, a camera, and a radar device;
- a memory;
- and
- a second processor that is connected to the collision prediction section and the memory, and that is configured to:
- in a case in which a collision between an object and a vehicle installed with an occupant restraint device has been predicted by the collision prediction section, determine whether or not a collision mode between the vehicle and the object is an underride mode based on an acceleration detected by a first acceleration sensor provided in a vehicle cabin and an acceleration detected by a second acceleration sensor provided further toward a vehicle front than the vehicle cabin, and determine whether or not the object is another vehicle;
- and
- actuate the occupant restraint device in a case in which the collision between the vehicle and the object has been predicted by the collision prediction section, the collision mode has been determined to be the underride mode, the object has been determined to be the another vehicle, and the acceleration detected by the first acceleration sensor is at or above an underride-mode-actuation determination threshold that is lower than a normal-actuation determination threshold for the occupant restraint device,
- wherein the first processor of the collision prediction section is configured to:
- detect a position of the object in an image input from the camera based on information input from the radar device
- extract feature quantities of the object, and
- determine whether or not the object is the another vehicle based on the extracted feature quantities,
- wherein the second processor is configured to actuate the occupant restraint device in a case in which all of the following four conditions have been met during a time duration less than a predetermined time duration:
- a first condition of the collision having been predicted by the collision prediction section;
- a second condition of the collision mode having been determined to be the underride mode by the second processor;
- a third condition of the object having been determined to be the another vehicle by the second processor;
- and
- a fourth condition of the acceleration detected by the first acceleration sensor being at or above the underride-mode-actuation determination threshold,
- wherein the occupant restraint device is a pre-tensioner.
15 more elements
A non-transitory recording medium storing a program executable by a computer to perform vehicle collision detection processing, the vehicle collision detection processing comprising:
- in a case in which a collision between an object and a vehicle installed with an occupant restraint device has been predicted, determining whether or not a collision mode between the vehicle and the object is an underride mode based on an acceleration detected by a first acceleration sensor provided in a vehicle cabin and an acceleration detected by a second acceleration sensor provided further toward a vehicle front than the vehicle cabin, and determining whether or not the object is another vehicle;
- and
- actuating the occupant restraint device in a case in which the collision between the vehicle and the object has been predicted, the collision mode has been determined to be the underride mode, the object has been determined to be the another vehicle, and the acceleration detected by the first acceleration sensor is at or above an underride-mode-actuation determination threshold that is lower than a normal-actuation determination threshold for the occupant restraint device,
- wherein the method further comprises:
- detecting a position of the object in an image input from a camera based on information input from a radar device,
- extracting feature quantities of the object, and
- determining whether or not the object is the another vehicle based on the extracted feature quantities,
- wherein, in the vehicle collision detection processing, the occupant restraint device is actuated in a case in which all of the following four conditions have been met during a time duration less than a predetermined time duration:
- a first condition of the collision having been predicted;
- a second condition of the collision mode having been determined to be the underride mode:
- a third condition of the object having been determined to be the another vehicle;
- and
- a fourth condition of the acceleration detected by the first acceleration sensor being at or above the underride-mode-actuation determination threshold,
- wherein the occupant restraint device is a pre-tensioner.
11 more elements
Dependencies are inferred from the claim text.