Tire pressure abnormality detection method

Abstract

Abstract Translated from Japanese (57)【要約】 【課題】 タイヤの内圧異常を迅速に検出し、適確な判 定と警報を行なうことができる空気圧異常検出方法を提 供する。 【解決手段】 車両用タイヤの空気圧低下を知らせるタ イヤ空気圧異常検出方法であって、各タイヤが正常内圧 であるときのタイヤ径のばらつきを補正する係数を計算 し、不揮発性メモリに記憶する初期化処理の進行状態に 合わせて、計算されるタイヤの車幅方向加速度によるデ ータの不採用判定のしきい値を下げていく。 (57) [Problem] To provide an air pressure abnormality detection method capable of quickly detecting an abnormality in the internal pressure of a tire and making an appropriate determination and alarm. SOLUTION: A tire air pressure abnormality detecting method for notifying a decrease in air pressure of a vehicle tire, wherein a coefficient for correcting a variation in a tire diameter when each tire has a normal internal pressure is calculated and stored in a nonvolatile memory. In accordance with the progress of the processing, the threshold value for the data rejection determination based on the calculated tire widthwise acceleration is reduced.

Inventors

• 👤 Hiroto Horie
• 👤 洋人 堀江

Bibliographic Details