Vehicular pedestrian determining system
First Claim
1. A pedestrian determining system that is mounted on a vehicle and determines a collision object for protecting a pedestrian, the pedestrian determining system comprising:
- an impedance sensor that detects one of an alternating-current impedance and an electricity quantity being a function value of the alternating-current impedance to thereby output the detected one as an impedance signal, wherein the alternating-current impedance is varied by approaching of the collision object;
a collision load sensor that detects a collision load when the collision object collides with the vehicle to output the detected collision load as a collision load signal; and
a controller that determines whether the collision object is the pedestrian or not, using the impedance signal outputted from the impedance sensor and the collision load signal outputted from the collision load sensor, so as to control a pedestrian protecting device, wherein, at least when the impedance signal exhibits one of a waveform that corresponds to the pedestrian and a signal value that corresponds to the pedestrian, within a given period starting from when the impedance signal crosses a given signal value in a direction in which the collision object approaches the vehicle, the collision object is determined to be the pedestrian and the pedestrian protecting device is controlled for being activated, and wherein, at least when the impedance signal does not exhibit the one of the waveform and the signal value, the collision object is determined to be not the pedestrian and the pedestrian protecting device is controlled for being not activated.
1 Assignment
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Accused Products
Abstract
A pedestrian determining system mounted on a vehicle determines a collision object for protecting a pedestrian. An impedance sensor is included for detecting an alternating-current impedance or an electricity quantity being a function value of the alternating-current impedance to thereby output the detected one as an impedance signal, wherein the alternating-current impedance is varied by approaching of the collision object. A collision load sensor is included for detecting a collision load when the collision object collides with the vehicle to output the detected collision load as a collision load signal. Whether the collision object is a pedestrian or not is determined based on a value of a given function including as input variables the impedance signal outputted from the impedance sensor and the collision load signal outputted from the collision load sensor.
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Citations
28 Claims
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1. A pedestrian determining system that is mounted on a vehicle and determines a collision object for protecting a pedestrian, the pedestrian determining system comprising:
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an impedance sensor that detects one of an alternating-current impedance and an electricity quantity being a function value of the alternating-current impedance to thereby output the detected one as an impedance signal, wherein the alternating-current impedance is varied by approaching of the collision object;
a collision load sensor that detects a collision load when the collision object collides with the vehicle to output the detected collision load as a collision load signal; and
a controller that determines whether the collision object is the pedestrian or not, using the impedance signal outputted from the impedance sensor and the collision load signal outputted from the collision load sensor, so as to control a pedestrian protecting device, wherein, at least when the impedance signal exhibits one of a waveform that corresponds to the pedestrian and a signal value that corresponds to the pedestrian, within a given period starting from when the impedance signal crosses a given signal value in a direction in which the collision object approaches the vehicle, the collision object is determined to be the pedestrian and the pedestrian protecting device is controlled for being activated, and wherein, at least when the impedance signal does not exhibit the one of the waveform and the signal value, the collision object is determined to be not the pedestrian and the pedestrian protecting device is controlled for being not activated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A pedestrian determining system that is mounted on a vehicle and determines a collision object for protecting a pedestrian, the pedestrian determining system comprising:
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an impedance sensor that detects one of an alternating-current impedance and an electricity quantity being a function value of the alternating-current impedance to thereby output the detected one as an impedance signal, wherein the alternating-current impedance is varied by approaching of the collision object;
a collision load sensor that detects a collision load when the collision object collides with the vehicle to output the detected collision load as a collision load signal; and
a controller that determines whether the collision object is the pedestrian or not at least based on a value of a given function including as input variables the impedance signal outputted from the impedance sensor and the collision load signal outputted from the collision load sensor. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification