The invention relates to a heavy truck steering automatic early warning method which comprises the following steps: S1, according to the length and width of a vehicle body and the diameter of a tire, an expected wheel speed difference phi is set, and the expected wheel speed difference phi is 0.65-0.99; s2, when the vehicle speed V is 10-50 km/h, the wheel speed of the left front wheel and the wheel speed of the right front wheel are detected once every 80-100 ms, the difference values are compared, the real-time wheel speed difference phi 1 is obtained, and the real-time wheel speed difference phi 1 is continuously detected 10-12 times; and S3, comparing the real-time wheel speed difference phi 1 with the expected wheel speed difference phi, starting a voice prompt by an alarm when the real-time wheel speed difference phi 1 reaches the expected wheel speed difference phi every time, and repeating the step S2 to continuously detect the real-time wheel speed difference phi 1 for 10-12 times when the real-time wheel speed difference phi 1 does not reach the expected wheel speed difference phi every time. According to the technical scheme, the expected wheel speed difference phi is set according to the length and width of a vehicle body and the size of tires of the vehicle, the real-time wheel speed difference phi1 is calculated by detecting the vehicle speed and the wheel speed of the heavy truck, and the intention of turning left and right of the vehicle is intelligently judged by comparing the phi1 with the phi.
本发明涉及一种重卡转向自动预警报的方法,采用以下步骤:S1,根据车辆车身的长宽以及轮胎直径,设定期望轮速差φ,期望轮速差φ为0.65‑0.99;S2,车速V在10‑50km/h时,每隔80‑100ms检测一次左前轮与右前轮的轮速,并做差值比较,得出实时轮速差φ1,连续检测10‑12次实时轮速差φ1;S3,将实时轮速差φ1与期望轮速差φ做比较,在每次实时轮速差φ1均达到期望轮速差φ时,报警器开启语音提示,在其中一次实时轮速差φ1未达到期望轮速差φ时,则重复步骤S2连续检测出10‑12次的实时轮速差φ1。本发明的技术方案根据车辆的车身长宽、轮胎的大小,设定期望轮速差φ,通过检测重卡车速、轮速,计算出实时轮速差φ1,φ1与φ进行比较,从而智能的判断出车辆左右转弯的意图。
Heavy truck steering automatic early warning method
一种重卡转向自动预警报的方法
2022-03-04
Patent
Electronic Resource
Chinese
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein |
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