Method and device for determining deformation of a vehicle side part
First Claim
1. A method for determining deformation of a side part of a vehicle body, comprising the steps of:
- detecting an acceleration produced in a part of the vehicle body which moves in response to a deformation of the vehicle side part resulting from a side impact;
analyzing frequency components included in a time change of the detected acceleration over a prescribed preceding time period; and
determining deformation of a vehicle side part resulting from a side impact according to the frequency components obtained in the analyzing step.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention allows accurate determination as to if deformation of a vehicle side part has occurred or not as a result of a side impact even though the used data consists of outputs of acceleration sensors for detecting accelerations given as combinations of deformation of a vehicle side part and a travel of the vehicle body. The device comprises a unit for detecting an acceleration produced in a first part of the vehicle body which moves in response to a deformation of the vehicle side part resulting from a side impact; a unit for detecting an acceleration produced in a second part of the vehicle body which substantially does not move in response to a deformation of the vehicle side part resulting from a side impact; a unit for analyzing frequency components included in a time change of the detected acceleration of the first vehicle body part over a prescribed preceding time period; a unit for analyzing frequency components included in a time change of the detected acceleration of the second vehicle body part over a prescribed preceding time period; and a unit for determining deformation of a vehicle side part resulting from a side impact according to the frequency components obtained by the two analyzing units.
57 Citations
43 Claims
-
1. A method for determining deformation of a side part of a vehicle body, comprising the steps of:
-
detecting an acceleration produced in a part of the vehicle body which moves in response to a deformation of the vehicle side part resulting from a side impact; analyzing frequency components included in a time change of the detected acceleration over a prescribed preceding time period; and determining deformation of a vehicle side part resulting from a side impact according to the frequency components obtained in the analyzing step. - View Dependent Claims (2, 3, 4, 13)
-
-
5. A method for determining deformation of a side part of a vehicle body, comprising the steps of:
-
detecting an acceleration produced in a first part of the vehicle body which moves in response to a deformation of the vehicle side part resulting from a side impact; detecting an acceleration produced in a second part of the vehicle body which does not substantially move in response to a deformation of the vehicle side part resulting from the side impact; analyzing a frequency component included in a time change of the detected acceleration of the first vehicle body part over a prescribed preceding time period; analyzing a frequency component included in a time change of the detected acceleration of the second vehicle body part over a prescribed preceding time period; and determining deformation of a vehicle side part resulting from a side impact according to the frequency components obtained in the two analyzing steps. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
-
-
14. A device for determining deformation of a side part of a vehicle body, comprising:
-
means for detecting an acceleration produced in a part of the vehicle body which moves in response to a deformation of the vehicle side part resulting from a side impact; means for analyzing a frequency component included in a time change of the detected acceleration over a prescribed preceding time period; and means for determining deformation of a vehicle side part resulting from the side impact according to the frequency components obtained in the analyzing step. - View Dependent Claims (15, 16, 17, 26, 42, 43)
-
-
18. A device for determining deformation of a side part of a vehicle body, comprising:
-
means for detecting an acceleration produced in a first part of the vehicle body which moves in response to a deformation of the vehicle side part resulting from a side impact; means for detecting an acceleration produced in a second part of the vehicle body which does not substantially move in response to a deformation of the vehicle side part resulting from a side impact; means for analyzing a frequency component included in a time change of the detected acceleration of the first vehicle body part over a prescribed preceding time period; means for analyzing a frequency component included in a time change of the detected acceleration of the second vehicle body part over a prescribed preceding time period; and means for determining deformation of a vehicle side part resulting from the side impact according to the frequency components obtained by the two analyzing means. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
-
-
27. A device for determining deformation of a side part of a vehicle body, comprising:
-
an acceleration detecting unit which is mounted to a part of the vehicle body which moves in response to a deformation of the vehicle side part resulting from a side impact, said acceleration detecting unit including an acceleration sensor, and binary conversion means for producing a binary signal depending on a result of comparison of a prescribed frequency component included in a time change of an output signal from the acceleration sensor over a prescribed preceding time period with a prescribed threshold value; and means for determining deformation of a vehicle side part resulting from a side impact according to the binary sianal produced from the binary conversion means incorporated in the acceleration detecting unit. - View Dependent Claims (28, 29, 30, 31)
-
-
32. A device for determining deformation of a side part of a vehicle body, comprising:
-
a first acceleration detecting unit which is mounted to a part of the vehicle body which moves in response to a deformation of the vehicle side part resulting from a side impact, said first acceleration detecting unit including an acceleration sensor, and binary conversion means for producing a binary signal depending on a result of comparison of a prescribed frequency component included in a time change of an output signal from the acceleration sensor over a prescribed preceding time period with a prescribed threshold value; a second acceleration detecting unit which is mounted to a part of the vehicle body which does not substantially move in response to a deformation of the vehicle side part resulting from a side impact, said second acceleration detecting unit including an acceleration sensor, and binary conversion means for producing a binary signal depending on a result of comparison of a prescribed frequency component included in a time change of an output signal from the acceleration sensor over a prescribed preceding time period with a prescribed threshold value; and means for determining deformation of a vehicle side part resulting from a side impact according to a comparison of the binary signal produced from the binary conversion means incorporated in the first acceleration detecting unit with the binary signal produced from the binary conversion means incorporated in the second acceleration detecting unit. - View Dependent Claims (33, 34, 35, 36, 39, 40, 41)
-
-
37. A device for determining deformation of a side part of a vehicle body, comprising:
-
a first acceleration detecting unit which is mounted to a part of the vehicle body which moves in response to a deformation of the vehicle side part resulting from a side impact, said first acceleration detecting unit including an acceleration sensor, and binary conversion means for producing a binary signal depending on a result of comparison of a prescribed frequency component included in a time change of an output signal from the acceleration sensor over a prescribed preceding time period with a prescribed threshold value; a plurality of second acceleration detecting units which are each mounted to a part of the vehicle body which does not substantially move in response to a deformation of the vehicle side part resulting from a side impact, each of said plurality of second acceleration detecting units including an acceleration sensor, and binary conversion means for producing a binary signal depending on a result of comparison of a prescribed frequency component included in a time change of an output signal from the acceleration sensor over a prescribed preceding time period with a prescribed threshold value; and means for determining deformation of a vehicle side part resulting from a side impact according to the binary signal produced from the binary conversion means incorporated in the first acceleration detecting unit and the binary signals produced from the binary conversion means incorporated in the plurality of second acceleration detecting units. - View Dependent Claims (38)
-
Specification