Safety system for a vehicle of a vehicle fleet
First Claim
1. A safety system for a vehicle of a fleet of vehicles, comprising:
- a personal protection device;
a contact sensor system for acquiring at least one impact-relevant physical quantity;
an environmental sensor system for acquiring at least one crash-relevant physical quantity in an environment surrounding the vehicle; and
an evaluation and control unit;
wherein;
the evaluation and control unit is configured to;
evaluate the at least one impact-relevant physical quantity acquired by the contact sensor system;
execute an adaptive pre-trigger function by which to;
evaluate the at least one crash-relevant physical quantity acquired by the environmental sensor system;
based on the evaluation of the at least one crash-relevant physical quantity acquired by the environmental sensor system, recognize that an unavoidable crash, which has not yet occurred, will occur; and
based on the recognition that the unavoidable crash will occur and only when the adaptive pre-trigger function is validated to be accurate, output a trigger signal that triggers deployment of the personal protection device prior to occurrence of the unavoidable crash; and
determine, for respective recognitions that the unavoidable crash will occur, whether a respective corresponding crash impact is recognized subsequent to the respective recognition that the unavoidable crash will occur, with a result of the determination impacting a rating indicating whether there is a threshold correspondence between the recognitions that the unavoidable crash will occur and the recognitions of crash impact; and
the adaptive pre-trigger function;
is initially installed without being validated to be accurate, prior to the rating indicating that there is the threshold correspondence, so that one or more recognitions that the unavoidable crash will occur is made by the execution of the adaptive pre-trigger function without the trigger signal being output to trigger the deployment of the personal protection device; and
is subsequently updated to be validated to be accurate in response to the rating being changed to indicate that there is the threshold correspondence so that in response to a subsequent recognition that the unavoidable crash will occur, the adaptive pre-trigger function causes deployment of the personal protection device prior to any corresponding crash impact being determined.
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Accused Products
Abstract
A pre-crash system has at least one dummy actuator and an adaptive pre-trigger function that is implemented with different parameter sets as a function of a current degree of validation, and evaluates the acquired physical quantities for pre-crash recognition in order to recognize an unavoidable crash, a first parameter set, which limits the pre-trigger function to a dummy operating mode in which the pre-trigger function produces at least one trigger signal for the dummy actuator if the evaluation of the physical quantities permits the inference of an unavoidable crash, being implemented until the current degree of validation satisfies a specified condition, the pre-trigger function comparing the triggering of the dummy actuator with the behavior of the evaluation and control unit, and, as a function of the comparison, rating the triggering of the dummy actuator as “correct” or as a “false positive.”
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Citations
11 Claims
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1. A safety system for a vehicle of a fleet of vehicles, comprising:
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a personal protection device; a contact sensor system for acquiring at least one impact-relevant physical quantity; an environmental sensor system for acquiring at least one crash-relevant physical quantity in an environment surrounding the vehicle; and an evaluation and control unit; wherein; the evaluation and control unit is configured to; evaluate the at least one impact-relevant physical quantity acquired by the contact sensor system; execute an adaptive pre-trigger function by which to; evaluate the at least one crash-relevant physical quantity acquired by the environmental sensor system; based on the evaluation of the at least one crash-relevant physical quantity acquired by the environmental sensor system, recognize that an unavoidable crash, which has not yet occurred, will occur; and based on the recognition that the unavoidable crash will occur and only when the adaptive pre-trigger function is validated to be accurate, output a trigger signal that triggers deployment of the personal protection device prior to occurrence of the unavoidable crash; and determine, for respective recognitions that the unavoidable crash will occur, whether a respective corresponding crash impact is recognized subsequent to the respective recognition that the unavoidable crash will occur, with a result of the determination impacting a rating indicating whether there is a threshold correspondence between the recognitions that the unavoidable crash will occur and the recognitions of crash impact; and the adaptive pre-trigger function; is initially installed without being validated to be accurate, prior to the rating indicating that there is the threshold correspondence, so that one or more recognitions that the unavoidable crash will occur is made by the execution of the adaptive pre-trigger function without the trigger signal being output to trigger the deployment of the personal protection device; and is subsequently updated to be validated to be accurate in response to the rating being changed to indicate that there is the threshold correspondence so that in response to a subsequent recognition that the unavoidable crash will occur, the adaptive pre-trigger function causes deployment of the personal protection device prior to any corresponding crash impact being determined. - View Dependent Claims (2, 3, 4, 11)
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5. A system for validating a pre-trigger function for a safety system in vehicles of a fleet of vehicles, comprising:
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a central unit that includes a computer system, a first communication device, and storage device, the computer system communicating with and exchanging data with the vehicles of the vehicle fleet via the first communication device; wherein; the safety system of the individual vehicles of the vehicle fleet includes; a personal protection device; a contact sensor system for acquiring at least one impact-relevant physical quantity; an environmental sensor system for acquiring at least one crash-relevant physical quantity in an environment surrounding the vehicle; and an evaluation and control unit; the evaluation and control unit is configured to; evaluate the at least one impact-relevant physical quantity acquired by the contact sensor system; execute an adaptive pre-trigger function by which to; evaluate the at least one crash-relevant physical quantity acquired by the environmental sensor system; based on the evaluation of the at least one crash-relevant physical quantity acquired by the environmental sensor system, recognize that an unavoidable crash, which has not yet occurred, will occur; and based on the recognition that the unavoidable crash will occur and only when the adaptive pre-trigger function is validated to be accurate, output a trigger signal that triggers deployment of the personal protection device prior to occurrence of the unavoidable crash; and determine, for respective recognitions that the unavoidable crash will occur, whether a respective corresponding crash impact is recognized subsequent to the respective recognition that the unavoidable crash will occur, with a result of the determination impacting a respective rating of correspondence in the respective vehicle between the recognitions that the unavoidable crash will occur and the recognitions of crash impact, by which a determination is made of whether there is a threshold correspondence between the recognitions that the unavoidable crash will occur and the recognitions of crash impact; the adaptive pre-trigger function; is initially installed without being validated to be accurate, prior to the rating indicating that there is the threshold correspondence, so that one or more recognitions that the unavoidable crash will occur is made by the execution of the adaptive pre-trigger function without the trigger signal being output to trigger the deployment of the personal protection device; and is subsequently updated to be validated to be accurate in response to the rating being changed to indicate that there is the threshold correspondence; and the computer system; receives data including one or both of (a) the respective ratings and (b) respective sums of operating hours of the adaptive pre-trigger function in the respective vehicles of the vehicle fleet; stores the data in the storage device; evaluates the data to determine whether the threshold correspondence is met; and in response to determining that the threshold correspondence is met, transmits, to the vehicles of the vehicle fleet and via the first communication device, an update by which the adaptive pre-trigger function in the vehicles of the vehicle fleet is validated to be accurate, so that in response to a subsequent recognition that the unavoidable crash will occur, the adaptive pre-trigger function causes deployment of the personal protection device prior to any corresponding crash impact being determined. - View Dependent Claims (6, 7, 8, 9, 10)
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Specification