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SCR后处理系统尿素品质传感器抗气泡干扰能力研究

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尿素品质是保证高效选择性催化还原(SCR)尾气处理效率的关键点,但尿素加注过程或整车行驶过程中所产生的气泡为其精确探测带来了挑战,其核心部件技术严重依赖国外.采用超声波和阻抗双诊断技术策略可解决上述典型问题,测试结果表明新产品抗气泡干扰能力明显强于市面上典型竞品.
Study on Anti-Bubble Disturbance Capability of Urea Quality Sensor in SCR After-Treatment System
Urea quality measurement is critical to ensuring high-efficiency SCR exhaust treatment efficacy.Bubbles during urea injec-tion or vehicle operation pose a challenge for precise detection.This dependency on importing from abroad for its core component tech-nology is thus pronounced.To address these typical issues,it introduces a product that employs a dual diagnostic strategy of ultrasonic and impedance techniques,with an improved sensor structure to enhance its anti-bubble disturbance capability.The testing results demonstrate that the new product significantly outperforms typical market competitors regarding its ability to resist bubble interference.

urea quality sensorSCR after-treatment systemanti-bubble disturbancedual diagnostic strategy

金建交、夏五星、张晨韵

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沙洲职业工学院智能制造学院,江苏 张家港 215600

宁波楷世环保科技有限公司,浙江宁波 315800

无锡工艺职业技术学院陶瓷学院,江苏 无锡 214200

尿素品质传感器 SCR后处理 抗气泡干扰 双诊断策略

2024

现代车用动力
中国一汽无锡油泵油嘴研究所

现代车用动力

影响因子:0.153
ISSN:1671-5446
年,卷(期):2024.(4)