解决N车型外后视镜调节失效问题
2021-04-09赵巍
赵巍
摘 要:车辆后视系统由车外反射镜和广角透镜组成,在车辆安全系统中起着重要的作用。现有的汽车后视镜系统还存在许多问题亟待解决,如汽车转向过程中的盲区等。本文提出了一种新型的智能车辆后视系统的设计方案,该系统能够在不同的行驶条件下自动调节车辆外部镜头的角度。影响因素包括车辆转向角、行驶速度和车辆尺寸参数。本设计以 AT90C516RD+单片机为核心控制单元。该系统增加了一个新的自动模式与现有的手动功能保留。通过理论仿真和模型试验,证明该设计完全可行,并已被具有工业潜力的客户调查所接受。
关键词:N车型 后视镜调节 失效控制
Solution of the Adjustment Failure of the Exterior Rearview Mirror of the N Model
Zhao Wei
Abstract:The vehicle rear view system is composed of an exterior mirror and a wide-angle lens, which plays an important role in the vehicle safety system. There are still many problems in the existing car rearview mirror system that need to be solved urgently, such as blind spots in the car steering process. This article proposes a new type of intelligent vehicle rear-view system design scheme, which can automatically adjust the angle of the vehicle's external lens under different driving conditions. Influencing factors include vehicle steering angle, driving speed and vehicle size parameters. This design uses AT90C516RD + single-chip microcomputer as the core control unit. The system adds a new automatic mode and retains the existing manual functions. Through theoretical simulations and model tests, it is proved that the design is completely feasible and has been accepted by customers with industrial potential.
Key words:N model, rearview mirror adjustment, failure control
1 引言
一般来说,驾驶员可以通过传统的后视镜观察车辆后面的交通状况。驾驶人在倒车或靠边停车时,由于没有调整后视镜角度,车辆右侧可能被路边刮伤,这些问题甚至发生在技术熟练的驾驶员身上。如果后视镜有盲点和畸变,必然会带来交通安全隐患。汽车后视镜系统的设计是为了实现汽车两侧外表面的镜面自动调节和智能化。这些反光镜可以进行二维转动,补偿程度取决于车辆的外形参数、行驶速度、转向速度、转向角度和驾驶员的驾驶习惯等。该设计可以提供视野补偿,避免或减小空间盲区、时区差盲区、准直误差和视觉持续性盲区误差的影响。
2 汽车后视镜调节失调问题概述
随着先进制造技术的飞速发展,越来越多的逆向工程技术被引入到制造和设计领域。……
