Title:
COLLISION DETECTOR AND COLLISION DETECTION METHOD
Document Type and Number:
Japanese Patent JP2019018658
Kind Code:
A
Abstract:
To prevent an occupant protection device from being erroneously activated.SOLUTION: A collision detector comprises: an activation determination section; an acquisition section; and a switching section. The activation determination section activates an occupant protection device mounted to a vehicle, when a sensor value from a sensor detecting impact shock applied to the vehicle exceeds a prescribed collision determination threshold value. The acquisition section acquires a vehicle door state. The switching section switches the collision determination threshold value to a prescribed low threshold value corresponding to a normal time threshold value, when the vehicle door state has been acquired in a normal manner by the acquisition section, and the vehicle door state indicates a closed door state, whereas the collision determination threshold value is switched to a prescribed high threshold value which is greater than the low threshold value, when the vehicle door state is not acquired in a normal manner by the acquisition section.SELECTED DRAWING: Figure 2
Inventors:
HAYASHI HIROTAKA
Application Number:
JP2017137242A
Publication Date:
February 07, 2019
Filing Date:
July 13, 2017
Export Citation:
Assignee:
DENSO TEN LTD
International Classes:
B60R21/0136; B60R21/00; B60R21/0132
Attorney, Agent or Firm:
Sakai International Patent Office