基于CAN总线的智能电动车窗系统设计

将CAN(控制器局域网)总线应用于电动车窗,提出一种基于CAN总线的汽车智能电动车窗系统,从功能方案、软硬件设计和防夹算法等几个方面进行研究。该系统基于集成CAN控制器的P8xC591单片机和电机驱动芯片BTS7960设计为分布式结构,采用监测电机电流无传感器的防夹算法,还具有电机保护和智能升窗等功能。与传统点对点通信相比,该系统减少线束、降低成本,具有良好的实时性和可移植性,能实现智能控制,有一定的实用价值和应用前景。

Design of Vehicle Intelligent Power Window System Based on CAN Bus

An intelligent power window system based on CAN bus is proposed and researched in its function program, software and hardware design and anti-pinch algorithm.This system is designed as the distributed structure based on the singlechip P8xC591 with integrated CAN controller and the motor driver chip BTS7960. It adopts the anti-pinch algorithm by monitoring motor current without sensor and has the functions of motor protection and intelligent window lifting. Compared with the traditional point-to-point communication, it reduces wire harness and the cost and has good real-time and portability. It can realize intelligent control and has practical value and application prospect.