减速刹车灯控制.pdf

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1、g-SensorHigh-BrightnessLEDBrakeLamp带重力传感器的高亮度LED刹车信号灯郭凯利译2013.1.21翻译说明这是译者学习翻译的第一个数据手册，由于英文水平有限，翻译过程中自己感觉有好多问题和翻译不到位的地方。希望各位朋友和精英在使用本手册时，多向我抛砖头，麻烦各位把您的高见发到我的电子邮箱www.ironkl@hotmail.com，给我提意见。谢谢！g-SensorHigh-BrightnessLEDBrakeLamp带重力传感器的高亮度LED刹车信号灯Theg-sensorhighbrightness

2、LEDbrakelampapplicationisdesignedwithmotorcyclistsafetyinmind.Althoughtheprinciplestransfertoanyvehicle,theyareespeciallyvaluabletodriversontwowheels.出于保证摩托车驾驶人安全的理念而设计的带重力传感器的高亮的LED刹车信号灯，尽管已扩展到所有的车辆，但这些应用对双轮驾驶者更有价值。Motorcyclistsarehardtoseeintraffic,andmostaccelerateand

3、deceleratefasterthancars.Thesecombinedfactorsincreasethechancesformotorcyclistinjuryandfatality.在堵车的环境下摩托车驾驶者很难看清周围的情况，并且加速或减速比汽车要快。这些因素使摩托车驾驶者更容易受到伤害或死亡。Theg-sensorbrakelampprovideshigh-intensityvariablelightoutputproportionaltoavehicle’sdeceleration,providingvaluablein

4、formationtodriversbehindmotorcycles.ThebrakelampusestheMMA7260Qthreeaxis,low-gaccelerometerandthehighlyintegratedFreescaleMM908E625systeminapackagedevicecontaininganHC908EY16microcontrollerandfullyself-protectingandintelligentanalogcircuitry.TheHC908EY16readsthreeaxesofa

5、ccelerationanddecelerationdatafromtheaccelerometer,controlsthesystem,anddriveseighthigh-brightnessLEDs.带重力传感器的刹车信号灯可以提供与车辆减速相适应的闪烁的高强度灯光，使摩托车驾驶者后面的驾驶者能得知车辆减速。刹车灯采用的MMA7260Q具有三轴向，低重力加速度计，和高集成的飞思卡尔MM908E625系统，其中MM908E625包含一个HC908EY16微控制器和完整的自我保护和智能的模拟电路。HC908EY16从加速度计中读取三向

6、的加速和减速数据，控制系统，驱动8个高亮LED。1BasicSystemDescription........................21.1KeySystemFeatures.......................21.2SystemBlockDiagram......................21.3BasicSystemBehavior......................42Accelerometers:TheKeytotheSystem.............52.1MeasuringDeceler

7、ationwiththeMMA7260Q.....52.2CollectingAcceleration/DecelerationData.......62.3ManagingVibrationandNoise................83DrivingtheHighBrightnessLEDs.................103.1BasicHBLEDDriveChannelswithMM908E625Half-Bridges.................................103.2AdditionalLED

8、ControlCircuitry..............124AdditionalSystemFeatures......................125SoftwareDesign.......