Side Impact Safety System with Blind-Spot Detection Radar Data Fusion
First Claim
1. A motor vehicle comprising:
- a blind-spot detection system comprising a remote sensor located adjacent a rear corner of the vehicle and having a beam pattern covering a blind spot sensing zone disposed in a rear quadrant of the vehicle, the remote sensor further having a side impact sensing zone disposed in a forward quadrant of the vehicle;
a side impact sensor mounted at a side impact portion of the vehicle;
an occupant safety device operable to protect an occupant during an impact on the side impact portion of the vehicle; and
a control module receiving signals from the side impact sensor and the blind-spot detection sensor and operative to;
calculate an approach vector of an object detected in the side impact sensing zone and/or the blind spot sensing zone;
determine, based on the approach vector, that the object is likely to impact the side impact portion of the vehicle;
initialize a side impact algorithm controlling activation of the occupant safety device;
detect, based on the signals received from the impact sensor, an impact on the side impact portion of the vehicle and determining a magnitude of the impact;
compare the magnitude of the impact with a threshold value established at least in part based upon the magnitude of the approach vector; and
activate the occupant safety device if the magnitude of the impact exceeds the threshold value.
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Accused Products
Abstract
A motor vehicle blind-spot detection system has a remote sensor covering a rear-quadrant blind spot sensing zone and a forward-quadrant side impact sensing zone. A control module receives signals from a side impact sensor and the blind-spot detection sensor, calculates an approach vector of an object in the side impact sensing zone and/or the blind spot sensing zone, determines that the object will impact the vehicle, initializes a side impact algorithm controlling activation of an occupant safety device, detects an impact on the side of the vehicle and determines a magnitude of the impact, compares the magnitude of the impact with a threshold value established at least in part based upon the magnitude of the approach vector, and activates the occupant safety device if the magnitude of the impact exceeds the threshold value.
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Citations
14 Claims
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1. A motor vehicle comprising:
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a blind-spot detection system comprising a remote sensor located adjacent a rear corner of the vehicle and having a beam pattern covering a blind spot sensing zone disposed in a rear quadrant of the vehicle, the remote sensor further having a side impact sensing zone disposed in a forward quadrant of the vehicle; a side impact sensor mounted at a side impact portion of the vehicle; an occupant safety device operable to protect an occupant during an impact on the side impact portion of the vehicle; and a control module receiving signals from the side impact sensor and the blind-spot detection sensor and operative to; calculate an approach vector of an object detected in the side impact sensing zone and/or the blind spot sensing zone; determine, based on the approach vector, that the object is likely to impact the side impact portion of the vehicle; initialize a side impact algorithm controlling activation of the occupant safety device; detect, based on the signals received from the impact sensor, an impact on the side impact portion of the vehicle and determining a magnitude of the impact; compare the magnitude of the impact with a threshold value established at least in part based upon the magnitude of the approach vector; and activate the occupant safety device if the magnitude of the impact exceeds the threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of operating an occupant safety system of a motor vehicle in response to a side impact comprising:
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operating a remote object detection sensor to detect a blind-spot threat object in a first sector rearward of the sensor and to detect a collision threat object in a second sector forward of the sensor; calculating an approach vector of the collision threat object; determining, based on the approach vector, that the collision threat object is likely to impact a side impact portion of the vehicle; in response to the determination, operating a control module to initialize a side impact algorithm controlling activation of an occupant safety device; operating a side impact sensor to detect an impact on the side impact portion of the vehicle and determine a magnitude of the impact; comparing the magnitude of the impact with a threshold value established at least in part based upon the magnitude of the approach vector; and activating the occupant safety device if the magnitude of the impact exceeds the threshold value. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method of operating an occupant safety system of a motor vehicle in response to a side impact comprising:
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operating an impact sensor to detect a magnitude of an impact on a side impact portion of the vehicle; activating an occupant safety device if the impact magnitude exceeds a contact-only threshold value; operating a blind spot detection sensor to detect an object in a forward quadrant relative to the vehicle; determining, based on information from the blind spot detection sensor, that the object is likely to impact the side impact portion of the vehicle; initializing a side impact algorithm in response to the determination that the impact is likely; determining a magnitude of the impact and comparing the magnitude with a predictive threshold value established at least in part based upon the information from the blind spot detection sensor; and activating the occupant safety device if the magnitude of the impact exceeds the predictive threshold value.
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Specification