Remote sensing based pre-crash threat assessment system
First Claim
1. A pre-crash assessment system, including a first target object in a near zone of a host object in motion, comprising:
- a remote sensor coupled to the host object for detecting a dynamic characteristic of the first target object in relation to the host vehicle;
a first safety device actuator, coupled to the host object, for activating a first safety device;
a pre-crash algorithm having a first threshold defined by a comparison of a future position prediction of the first target object relative to the host object and a fraction of a width of the host object; and
a safety device controller, coupled to the host object for generating a threshold assessment based on said dynamic characteristic, said controller estimating whether a potential for crash between the host object and the first target object is within said first threshold for said first safety device actuator, said safety device controller further controlling said first safety device actuator in response to said threshold assessment.
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Accused Products
Abstract
A pre-crash assessment system (1) includes a host vehicle (3) in motion and a high frequency sensor (4), which detects position and relative velocity of a target object in the near zone of the host vehicle (3). A safety device actuator (5) is also coupled to the host vehicle (3). A pre-crash algorithm provides a comparison of a future position prediction of the target object relative to the host vehicle (3). A safety device controller (9) is coupled to the host vehicle (3). The controller (9) generates a threshold assessment based on the target object future relative position and relative velocity. The controller (9) also controls the safety device actuator (5) by providing an actuation signal. The controller (9) operates through logic designed to estimate whether a potential for crash between the host vehicle (3) and the target object is within the threshold for the safety device actuator (5). The controller (9) activates the safety device actuator 5 when the potential for crash is within the pre-determined threshold and safety device specific deployment criteria are met.
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Citations
26 Claims
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1. A pre-crash assessment system, including a first target object in a near zone of a host object in motion, comprising:
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a remote sensor coupled to the host object for detecting a dynamic characteristic of the first target object in relation to the host vehicle;
a first safety device actuator, coupled to the host object, for activating a first safety device;
a pre-crash algorithm having a first threshold defined by a comparison of a future position prediction of the first target object relative to the host object and a fraction of a width of the host object; and
a safety device controller, coupled to the host object for generating a threshold assessment based on said dynamic characteristic, said controller estimating whether a potential for crash between the host object and the first target object is within said first threshold for said first safety device actuator, said safety device controller further controlling said first safety device actuator in response to said threshold assessment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for pre-crash threat assessment for a moving host vehicle, comprising:
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sensing a target vehicle in a near zone of the host vehicle;
tracking a current vehicle dynamic of said target vehicle with respect to the host vehicle;
calculating a future position of said target vehicle with respect to the host vehicle based on said vehicle dynamic of said target vehicle;
calculating a potential for collision by comparing said future position of said target vehicle to a fraction of a width of the host vehicle; and
determining whether said potential for collision of the host vehicle and said target vehicle is within a first pre-determined safety threshold. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A pre-crash assessment system, including a first target object in a near zone of a host vehicle, comprising:
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a high frequency remote sensor, coupled to the host vehicle, for detecting a vehicle dynamic of the first target object;
a first safety device actuator, coupled to the host vehicle for activating a first safety device;
a first pre-crash algorithm having a first threshold determined through a comparison of a future position prediction of the first target object relative to the host vehicle and a fraction of a width of the host vehicle;
a second safety device actuator, coupled to the host vehicle, for activating a second safety device;
a second pre-crash algorithm having a second threshold determined through a comparison of a future position prediction of the first target object relative to the host vehicle and a fraction of a width of the host vehicle; and
a safety device controller, coupled to the host vehicle for generating a threshold assessment based on said vehicle dynamic, said controller estimating whether a potential for crash between the host vehicle and the first target object is within said first threshold for said first safety device actuator and said second threshold for said second safety device actuator, said safety device controller further controlling said first safety device actuator in response to said threshold assessment. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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Specification