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五一四厂发挥本行业优势和根据美、英、日、西德等国外有关资料,近几年经过反复试验,研制成功了具有国内先进水平的3500-QFBD-2型汽车电子防抱装置,1986年通过航空工业部级投产技术鉴定,1987年被陕西省评为优秀新产品和获航空工业部科学技术进步三等奖。 该装置主要由车轮速度传感器,电子控制器、刹车压力调节阀、操纵盒四部分组成。工作原理选用桥控制低选择的控制方法。控制参量为车轮速度变化率。每个传感器用于检测各车轮的旋转速度讯号,分别送给电子控制器。电子控制器对车轮速度讯号进行整形、转换、运算、比较。当任一桥中的某个车轮处于滑动状态时,电子控制器将给该桥电磁调节阀发出松刹控制讯号,以解除同桥两侧车轮的刹车压力。车轮解除滑动后,电子控制器再给调节阀发出刹车讯号,经
In May14th factory, taking advantage of the industry and based on relevant foreign materials such as the United States, Britain, Japan and West Germany, in recent years, after repeated experiments, the 3500-QFBD-2 automobile electronic anti-lock device with advanced domestic level was successfully developed. In 1986, it passed the ministry-level technical appraisal of aviation industry. In 1987, it was appraised as excellent new product by Shaanxi Province and won the third prize of science and technology progress by Ministry of Aeronautical Industry. The device is mainly composed of wheel speed sensor, electronic controller, brake pressure regulating valve and control box. Working principle of the bridge control of low choice of control methods. The control parameter is the rate of change of wheel speed. Each sensor is used to detect the rotation speed of each wheel signal, respectively, to the electronic controller. Electronic controller to the wheel speed signal shaping, conversion, computing, comparison. When any of the wheels in a bridge is sliding, the electronic controller will send a loose brake control signal to the bridge electromagnetic valve to release the brake pressure on the wheels on both sides of the bridge. After the wheel is released from sliding, the electronic controller sends a brake signal to the regulating valve again