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1.发明授权公开(公告)号：US09433048B2
公开(公告)日：2016-08-30
申请号：US14921508
申请日：2015-10-23
CPC分类号： H05B33/0827 , B60Q1/0076 , H03K3/017 , H03K7/08 , H05B33/0806 , H05B33/0845
摘要： A method for controlling a motor-vehicle lighting device is provided that uses LEDs supplied with PWM signals temporally spaced apart from one another by a first time phase t1 and a second time phase t2. An interval of interest is defined in which an electromagnetic disturbance must not exceed a maximum threshold value θmax; driving signals are supplied on the basis of first phases t1 and t2 computed; and the measured or simulated waveform of the electromagnetic disturbance deriving from the phases t1 and t2 is compared with the maximum threshold value within the interval of interest defined. Where the waveform of the disturbance exceeds the threshold, two phases t1 and t2, once again different from one another, are recalculated; otherwise, the last phases t1 and t2 calculated are selected and used in the PWM control. An advantageous motor-vehicle lighting device is also provided.
摘要翻译： 提供一种用于控制机动车辆照明装置的方法，其使用经由第一时间段t1和第二时间相位t2彼此间隔开的PWM信号的LED提供。 定义感兴趣的间隔，其中电磁干扰不得超过最大阈值θmax; 基于计算出的第一相位t1和t2来提供驱动信号; 将从相位t1和t2导出的电磁干扰的测量或模拟波形与定义的关联间隔内的最大阈值进行比较。 在扰动波形超过阈值的情况下，重新计算两个相位t1和t2，彼此不同; 否则，计算的最后阶段t1和t2被选择并用于PWM控制。 还提供了一种有利的机动车照明装置。
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公开(公告)号：US20160119989A1
公开(公告)日：2016-04-28
申请号：US14921508
申请日：2015-10-23
CPC分类号： H05B33/0827 , B60Q1/0076 , H03K3/017 , H03K7/08 , H05B33/0806 , H05B33/0845
摘要： A method for controlling a motor-vehicle lighting device is provided that uses LEDs supplied with PWM signals temporally spaced apart from one another by a first time phase t1 and a second time phase t2. An interval of interest is defined in which an electromagnetic disturbance must not exceed a maximum threshold value θmax; driving signals are supplied on the basis of first phases t1 and t2 computed; and the measured or simulated waveform of the electromagnetic disturbance deriving from the phases t1 and t2 is compared with the maximum threshold value within the interval of interest defined. Where the waveform of the disturbance exceeds the threshold, two phases t1 and t2, once again different from one another, are recalculated; otherwise, the last phases t1 and t2 calculated are selected and used in the PWM control. An advantageous motor-vehicle lighting device is also provided.
摘要翻译： 提供一种用于控制机动车辆照明装置的方法，其使用经由第一时间段t1和第二时间相位t2彼此间隔开的PWM信号的LED提供。 定义感兴趣的间隔，其中电磁干扰不得超过最大阈值＆amp;最大值; 基于计算出的第一相位t1和t2来提供驱动信号; 将从相位t1和t2导出的电磁干扰的测量或模拟波形与定义的关联间隔内的最大阈值进行比较。 在扰动波形超过阈值的情况下，重新计算两个相位t1和t2，彼此不同; 否则，计算的最后阶段t1和t2被选择并用于PWM控制。 还提供了一种有利的机动车照明装置。
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