07-01-2021 дата публикации
Номер: US20210001878A1
Принадлежит:
A control method for a host vehicle (), comprising 1. A control method for a host vehicle , the method comprising the steps of:a) acquiring a speed Vx of the host vehicle, a relative speed Vr between a preceding vehicle and the host vehicle, and a relative distance Dr between the preceding vehicle and the host vehicle;{'sup': '2', 'b) calculating a perceived risk level as a function of said speed Vx of the host vehicle, said relative speed Vr, said relative distance Dr, and at least one of variables Vx*Vr and Vx;'}c) controlling at least one vehicle device of the host vehicle as a function of the perceived risk level.2. A control method according to claim 1 , wherein in step b) claim 1 , the perceived risk level PRL is calculated based on equation (1):{'br': None, 'i': PRL=', 'Dr−Pb*V', 'Pa*V, '()/(); wherein\u2003\u2003(1)'}Pa, Pb are five components vectors; and{'sup': '2', 'V=(1; Vx; Vr; Vx*Vr; Vx).'}3. A control method according to claim 2 , wherein Pa and Pb are linked by the following relations:Pa=(Pa1,Pa2,Pa3,Pa4,Pa5)Pb=(Pb1,Pb2,Pb3,Pb4,Pb5)Pa1/Pa2=0.295±0.15Pa2/Pa3=−0.236±0.12Pa3/Pa4=−8.2±4.1Pa4/Pa5=5.72±2.75Pb1/Pb2=1.8±0.9Pb2/Pb3=−3.98±2Pb3/Pb4=−32.6±16.3Pb4/Pb5=1.77±0.89in which Pa1, . . . Pa5 and Pb1, . . . Pb5 are real numbers.4. A control method according to claim 2 , wherein:Pa=(−0.00094±0.00047; −0.0032±0.0016; 0.014±0.007; −0.0017±0.00085; −0.00029±0.00015); andPb=(−4.5±2.25; −2.5±1.25; 0.62±0.31; −0.019±0.009; −0.011±0.0055).5. A control method according to claim 1 , wherein in step c) claim 1 , controlling said at least one vehicle device includes controlling said at least one vehicle device as a function of a difference between the perceived risk level and a predetermined maximum acceptable risk level.6. A control method according to claim 1 , wherein step c) includes actuating at least one driving actuator among said at least one vehicle device when the perceived risk level PRL exceeds a predetermined value.7. A control method according to claim ...
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