PROBLEM TO BE SOLVED: To improve collision detection performance with a simple configuration and with simple processing.SOLUTION: When a motor vehicle on which a passenger rides collides against a vehicle bumper, a deformation amount of the vehicle bumper exhibits characteristics (50) that include a characteristic 52 of a small deformation amount due to the collision against a wheel of the motor vehicle and a characteristic 54 of a relatively large deformation amount with a time difference from the former characteristic. When the deformation amount of the vehicle bumper exceeds a threshold (th3), it is detected that the motor vehicle contacted the vehicle bumper, and a threshold for determining the collision of an object is changed from a threshold (th1) for a pedestrian to a threshold (th2) for detecting the passenger of the motor vehicle for time (T2) for detecting the collision against the passenger of the motor vehicle after passage of waiting time (T1) until the passenger of the motor vehicle secondarily collides. As a result, even the collision against the motor vehicle on which the passenger rides with the small deformation amount can be detected.SELECTED DRAWING: Figure 4
【課題】衝突検出性能を簡単な構成でかつ簡単な処理で向上させる。【解決手段】車両用バンパに、乗員を乗せた二輪車が衝突した場合、車両用バンパの変形量は、二輪車の車輪に衝突した小さい変形量の特性52、および時間差をもって比較的大きい変形量の特性54を含む特性(50)となる。車両用バンパの変形量が閾値(th3)を超えた場合に車両用バンパへの接触として検出し、二輪車の乗員が二次的に衝突するまで待機する期間(T1)の経過後に、二輪車の乗員との衝突を検出する時間(T2)だけ、対象物の衝突を判定する閾値を、歩行者用の閾値(th1)から二輪車の乗員検出用の閾値(th2)に変更する。これによって、小さい変形量による乗員を乗せた二輪車に対する衝突であっても、これを検出できる。【選択図】図4
VEHICLE COLLISION DETECTOR AND VEHICLE COLLISION DETECTION METHOD
車両用衝突検出装置及び車両用衝突検出方法
2016-05-09
Patent
Elektronische Ressource
Japanisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
VEHICLE COLLISION DETECTOR AND VEHICLE COLLISION DETECTION METHOD
Europäisches Patentamt | 2016
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