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JPH11118925A Expired / Lapsed JP ⏱️ 0.0 years remaining

Inter-vehicle distance alarm

Assignee: Nissan Motor Co Ltd
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Filing: 1997-10-09
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Granted: —
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Expires: 2017-10-09
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Abstract

Abstract Translated from Japanese (57)【要約】 【課題】 下り方向へ道路勾配が変化したために先行車 に対する距離データが消失した場合には、車間距離警報 を出力し続けられるようにする。 【解決手段】 レーダ装置によって計測した先行車に対 する車間距離が警報車間距離よりも小さい時には信号処 理装置によって車間距離警報の出力指令を発し、これに よってブザー装置はドライバに車間距離警報を出力す る。そしてレーダ装置の有効検知エリアS0から遠距離境 界部分を除外した核検知エリアS1内に存在する先行車に 対する距離データを計測していて、次回の計測で距離デ ータが得られなくなった場合には、レーダ装置の検出範 囲を上向きに変更して距離計測を行い、それでも有効検 知エリアS0内に距離データが得られない場合には下り方 向の勾配変化ありと判定し、信号処理装置が別の警報出 力判断方法を用いて車間距離警報の出力判断を行う。 (57) [Problem] To output an inter-vehicle distance warning when distance data for a preceding vehicle is lost due to a change in a road gradient in a downward direction. When an inter-vehicle distance to a preceding vehicle measured by a radar device is smaller than an alarm inter-vehicle distance, a signal processing device issues an inter-vehicle distance alarm output command, whereby the buzzer device outputs an inter-vehicle distance alarm to a driver. And when the distance data for the preceding vehicle existing in the nuclear detection area S1 excluding the long distance boundary part from the effective detection area S0 of the radar device is measured, and the distance data can not be obtained in the next measurement, The detection range of the radar device is changed upward and distance measurement is performed. If the distance data is still not obtained in the effective detection area S0, it is determined that there is a gradient change in the down direction, and the signal processing device outputs another alarm. The output of the inter-vehicle distance warning is determined using the determination method.

Inventors

  • 👤 Kazuki Mizoguchi
  • 👤 和貴 溝口

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-10-23 12:10
CPC Classifications
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References Cited (Backward Citations)

JPS5316230A Cited
JPH0552934A Cited
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JPH085736A Cited

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