基于BCM的汽车发电机调节器设计
2015-03-31赵栗伟许勇
赵栗伟 许勇
摘 要: 为了使车辆电气系统具有更好的稳定性,在汽车发电机电压调节器有故障,系统状态电压出现过大波动时,能利用车载智能BCM进行调压工作,设计了基于BCM的汽车发电机调节器。介绍了系统的整体结构、设计要求、工作原理及模拟测试。所设计系统实现了对发电机输出电压的监测,并在其过高或过低时进行调节,同时具有切断原调压电路功能,达到保护作用,使车辆电气系统能更安全地工作。
关键词: 车辆电气系统; 电压调节器; 智能BCM; 模拟测试
中图分类号: TN710?34 文献标识码: A 文章编号: 1004?373X(2015)05?0145?04
Design of vehicle generator regulator based on BCM
ZHAO Li?wei, XU Yong
(School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin 541004, China)
Abstract: In order to improve vehicle electrical system performance, and realize voltage regulation through the vehicle?mounted intelligent BCM (body control module) when something is wrong with vehicle generator regulator or fluctuation of the system state voltage is too much, a vehicle generator regulator based on BCM was designed. The whole structure, control mechanism and design requirements of the system are introduced. The designed system can monitor the output voltage of vehicle alternator, and adjust it as needed. At the same time, it can cut off the fault voltage regulator to protect the circuit. It can improve the working performances of vehicle electrical system.
Keywords: vehicle electrical system; voltage regulator; intelligent BCM; simulation testing
0 引 言
随着汽车行业的不断发展,汽车电子电器装置在整个汽车技术领域中的比重也在日趋增大。车辆电控单元也在不断增加,即用电设备的数量在不断增加,电子电器装备也将会逐步代替传统的机械式控制设备。这样车辆电气系统的负荷越来越重,对供电系统要求也越来越高。当电气系统发生故障时和车载供电电压波动剧烈时,汽车的正常工作和行车安全就会受到影响。作为车载供电系统的关键设备,汽车发电机输出的电压保持高稳定状态将是汽车电子发展的重要保障。
发电机电压调节器则是汽车整个供电系统电压稳定性保证的核心,其功能是无论负载、转速等其他外界因素如果变化,总能使发电机输出电压控制在正常范围。调压器的工作稳定与否,直接会影响到车辆各用电设备的正常运行。
电压调节器有多种类型,无论是采用传统的触点式调节器、晶体管调节器、集成电路调压器,或者是更高级的电脑控制调节器,在目前生产的汽车当中都只会选择其中之一。……
