Entrapment detecting system
First Claim
1. An entrapment detecting system, comprising:
- a detection portion provided at an opening/closing apparatus for detecting an acceleration of the opening/closing apparatus on the basis of an output from a piezoelectric sensor for outputting a voltage corresponding to the acceleration of the opening/closing apparatus; and
a control portion for judging whether or not an object is entrapped by the opening/closing apparatus on the basis of a detected result of the detection portion, wherein the detection portion includes a current control portion connected to the control portion in series as a closed circuit whereby electricity is supplied from the control portion to the current control portion, the current control portion for changing a consumed current of the detection portion on the basis of the output from the piezoelectric sensor, and the control portion judges whether or not the object is entrapped by the opening/closing apparatus on the basis of the consumed current of the detection portion changed by the current control portion.
1 Assignment
0 Petitions
Accused Products
Abstract
An entrapment detecting system includes a detection portion provided at an opening/closing apparatus for detecting an acceleration thereof on the basis of an output from a piezoelectric sensor for outputting a voltage corresponding to the acceleration and a control portion for judging whether or not an object is entrapped by the opening/closing apparatus on the basis of a detected result of the detection portion. The detection portion includes a current control portion connected to the control portion in series as a closed circuit whereby electricity is supplied from the control portion to the current control portion. The current control portion changes a consumed current of the detection portion on the basis of the output from the piezoelectric sensor. The control portion judges whether or not the object is entrapped on the basis of the consumed current of the detection portion changed by the current control portion.
8 Citations
12 Claims
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1. An entrapment detecting system, comprising:
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a detection portion provided at an opening/closing apparatus for detecting an acceleration of the opening/closing apparatus on the basis of an output from a piezoelectric sensor for outputting a voltage corresponding to the acceleration of the opening/closing apparatus; and
a control portion for judging whether or not an object is entrapped by the opening/closing apparatus on the basis of a detected result of the detection portion, wherein the detection portion includes a current control portion connected to the control portion in series as a closed circuit whereby electricity is supplied from the control portion to the current control portion, the current control portion for changing a consumed current of the detection portion on the basis of the output from the piezoelectric sensor, and the control portion judges whether or not the object is entrapped by the opening/closing apparatus on the basis of the consumed current of the detection portion changed by the current control portion. - View Dependent Claims (2, 3, 4, 5)
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6. An entrapment detecting system, comprising:
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a detection portion provided at a slide door of a vehicle and including a piezoelectric sensor for outputting a voltage according to a moving state of the slide door, the detection portion detecting the moving state of the slide door on the basis of an output from the piezoelectric sensor; and
a control portion for judging whether or not an object is entrapped between the slide door and a door frame of the vehicle when the slide door moves on the basis of a detected result of the detection portion, wherein the detection portion is connected to the control portion in series whereby electricity is supplied from the control portion to the detection portion, the detection portion includes a current control portion for changing a consumed current of the detection portion on the basis of the output from the piezoelectric sensor, and the control portion judges whether or not the object is entrapped on the basis of the consumed current of the detection portion. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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Specification