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发明公开
CN101980905A 具有电流测量电路的电子机动车控制系统 失效 - 权利终止

具有电流测量电路的电子机动车控制系统
摘要：
本发明涉及电子机动车控制系统，其具有借助脉宽调制控制负载电流的至少一个阀致动电路(2a，2b)，并具有至少一个电子电流测量电路，该电路具有有着至少一个模拟/数字转换器(13，33)的至少一个测量路径(1，3)，模拟/数字转换器将负载电流的模拟测量信号转换为负载电流的数字测量信号，并被致动或设计为每个PWM周期进行多个电流测量，其中，电流测量电路的所述至少一个测量路径(1，3)具有信号保存电路(12，32)，该电路至少对于规定的保持时间(toff→on，ton→off)提供实质上不变且与实际负载电流无关的负载电流模拟测量信号。
摘要（英）：

The invention relates to an electronic motor vehicle control system having at least one valve actuating circuit (2a, 2b) which controls a load current by means of pulse width modulation, and having at least one electronic current measuring circuit which has at least one measurement path (1, 3) with at least one analog/digital converter (13, 33) which converts an analog measurement signal of the load current into a digital measurement signal of the load current and which is actuated or designed in such a way as to carry out a plurality of current measurements per PWM period, wherein the at least one measurement path (1, 3) of the current measurement circuit has a signal conservation circuit (12, 32) which provides the analog measurement signal of the load current substantially unchanged, and independent of the actual load current, for at least a defined hold time (toff->on, ton->off).

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