某轻型越野车刮水电动机受大功率电台电磁干扰产生误动作。本文通过对该问题现象和间歇刮水及喷洗器控制电路进行分析，确定了产生问题的原因，然后对该车的间歇刮水及喷洗器控制电路进行改进，并进行了试验验证。结果表明：本改进设计实施容易、成本低、可靠性高，节约了时间和费用。%The wiper motor on a light off-road vehicle is easily to be interfered by high-power radio electroma- gnetism and get into malfunction. The author analyzed the phenomena and the intermittent wiping and washing control circuit to determine the cause of the problem, improved the circuit and verifed it in test. The test results show that the improved design has the advantages of easy implementation, low cost, high reliability and time and money saving.
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