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arXiv 2602.01109cs.AI
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将车辆诊断转型:一种多模态方法用于错误模式预测

Transforming Vehicle Diagnostics: A Multimodal Approach to Error Patterns Prediction

Augsburg University(艾尔福特大学)

Hugo Math, Rainer Lienhart

AI总结:

本文提出BiCarFormer,通过整合DTC序列和环境条件,实现车辆错误模式的多模态预测,提升诊断准确性与鲁棒性。

摘要:

准确诊断和预测车辆故障对于汽车行业的维护和安全至关重要。虽然现代诊断系统主要依赖于OBD系统注册的车辆诊断故障代码(DTC)序列,但它们往往忽略了有价值的上下文信息,如原始传感器数据(例如温度、湿度和压力)。这种上下文数据对于领域专家分类车辆故障至关重要,但由于其复杂性和现实世界数据的噪声性质,带来了独特的挑战。本文提出了BiCarFormer:首个多模态方法,用于将错误代码序列进行多标签序列分类,以识别错误模式,该方法整合了DTC序列和环境条件。BiCarFormer是一种专为车辆事件序列设计的双向Transformer模型,采用嵌入融合和共注意机制来捕捉诊断代码与环境数据之间的关系。在具有22,137个错误代码和360个错误模式的具有挑战性的现实世界汽车数据集上的实验结果表明,与仅依赖DTC序列和传统序列模型的模型相比,我们的方法显著提高了分类性能。这项工作强调了整合上下文环境信息对于更准确和稳健的车辆诊断的重要性,从而减少维护成本并提高汽车行业的自动化程度。

英文摘要:

Accurately diagnosing and predicting vehicle malfunctions is crucial for maintenance and safety in the automotive industry. While modern diagnostic systems primarily rely on sequences of vehicular Diagnostic Trouble Codes (DTCs) registered in On-Board Diagnostic (OBD) systems, they often overlook valuable contextual information such as raw sensory data (e.g., temperature, humidity, and pressure). This contextual data, crucial for domain experts to classify vehicle failures, introduces unique challenges due to its complexity and the noisy nature of real-world data. This paper presents BiCarFormer: the first multimodal approach to multi-label sequence classification of error codes into error patterns that integrates DTC sequences and environmental conditions. BiCarFormer is a bidirectional Transformer model tailored for vehicle event sequences, employing embedding fusions and a co-attention mechanism to capture the relationships between diagnostic codes and environmental data. Experimental results on a challenging real-world automotive dataset with 22,137 error codes and 360 error patterns demonstrate that our approach significantly improves classification performance compared to models that rely solely on DTC sequences and traditional sequence models. This work highlights the importance of incorporating contextual environmental information for more accurate and robust vehicle diagnostics, hence reducing maintenance costs and enhancing automation processes in the automotive industry.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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