SAFETY SYSTEM FOR A VEHICLE OF A VEHICLE FLEET
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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.”
7 Citations
20 Claims
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1-10. -10. (canceled)
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11. 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; a pre-crash system that includes 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 that evaluates the physical quantities acquired by the contact sensor system and by the environmental sensor system for impact recognition and for pre-crash recognition, and, as a function of the evaluation and of specified parameters, controls at least one actuator of the personal protection device; wherein the 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 a 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.” - View Dependent Claims (12, 13, 14)
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15. A system for validating a pre-trigger function for a safety systems in vehicles of a fleet of vehicles, comprising:
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a central unit that includes a computer system, a second communication device, and storage device, the computer system communicating with and exchanging data with the vehicles of the vehicle fleet via the second 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, a pre-crash system that includes 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 that evaluates the physical quantities acquired by the contact sensor system and by the environmental sensor system for impact recognition and for pre-crash recognition, and, as a function of the evaluation and of specified parameters, controls at least one actuator of the personal protection device, wherein the 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 a 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.”and wherein the computer system receives at least one of the ratings of triggerings of the dummy actuators and a sum of the operating hours of vehicles of the vehicle fleet, storing them in the storage device, and evaluating them for the calculation of the current degree of validation of the pre-trigger function and in order to check the first parameter set. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification