摘 要

本文的目的是为了更好地选择失效模式和效果分析，FMEA首先认识到实现设计的框架结构，然后再进行分析，从而解决这些问题。将其能力和实践归纳为不同的失效模式和混合动力汽车冷却系统的效果分析，这些数据包称为物理、合法和属性对象，包括：失效模式和影响分析FMEA必须在产品或过程实施之前进行，其中存在故障模式，FMEA可用于分析过程或过程中的风险。安全系统的评估。

关键词：故障模式和影响分析FMEA，执行设计，冷却系统在混合动力汽车。

Abstact

This paper aims to provide a better selection of Failure Modes and Effects Analysis FMEA settle these issues by first recognizing the framework structure of Implementation Design and afterward disintegrates its capacities and practices into distinct Failure Modes and Effects Analysis of Cooling System in Hybrid Vehicles, data bundles called physical, legitimate and attribute object which comprise, the Failure Modes and Effects Analysis FMEA must be done before the Implementation of product or process in which the Failure Modes exists, the FMEA could be used to analyze risk in an process or the evaluation of a safety system.

Keywords: Failure Modes and Effects Analysis FMEA, Implementation Design, Cooling System in Hybrid Vehicles.

Table of Contents

摘 要 I

Abstact II

Chapter 1. Introduction 1

1.1 National and international research 1

1.2 Purpose and significance 2

1.2.1 Impact on Organization 3

1.3 Background 4

1.4 Outline 5

Chapter 2. Literature Review (Traditional FMEA) 6

2.1 Introduction to Failure Mode and Effect Analysis and FMEA by Definition 6

2.2 The Flame System and FMEA on Wind Turbines (WT) 10

2.3 FMEA for Software Based Automation System 12

2.4 FMEA based on Unified Modelling Language (UML) 13

Chapter 3. Methodology 15

3.1 Identifying Structure 16

3.2 Identify the Behavior. 17

3.3 Priorities the object and enter the information. 18

3.4 Generate failure modes 19

3.5 Completion of FMEA 21

3.6 Thermal Management System 24

3.6.1 Introduction 24

3.6.2 High Voltage PTC 26

Chapter 4. Data collection and Implementation 28

4.1 Structure 28

4.1.1 CAN (Controlled Area Network) 30

4.1.2 LIN (local Interconnected Network) 31

4.1.3 FLEXRAY 31

4.1.4 MOST (Media Oriented Systems Transport) 31

4.2 Behavior 31

4.2.1 Logical Objects 32

4.2.2 Physical Object 33

4.3 Prioritization 34

4.4 Failure Modes 35

4.5 FMEA Methodology 35

Chapter 5. Results and Recommendations 40

5.1 Comparison between traditional FMEA 42

Chapter 6. Conclusion 45

6.1 Future Work 45

References 47

Appendix 49

Acknowledgments 58

Chapter 1. Introduction

1.1 National and international research

A Failure Mode Effect Analysis was conducted in accordance with ISO standard 1497 for the various parts, joints, and functions of the system, and the potential effect of failure as well as recommended actions were examined, Failure Mode and Effect Analysis settle these issues by first recognizing the framework structure, and afterward disintegrates its capacities and practices into distinct data bundles called physical, legitimate and attribute object which comprises of various plan purposes. Unique consideration is given to these plan purposes of each question, keeping in mind the end goal to upgrade failure mode distinguishing proof later on. Articles are then hypothetically evaluated, as per the logical thinking of the FMEA technique.

Part of the evaluation and analysis is the assessment of risk, one of the most important factors for the successful implementation of an FMEA program is timeliness, it is meant to be a before the event action, not an after the fact exercise to achieve the greatest value, the FMEA must be done before the implementation of a product or process in which the failure mode exists. Actions resulting from an FMEA can reduce or eliminate the chance of chance of implementation a change that would create an even larger concern, FMEA could be used to analyze risk in an administration process or the evaluation of a safety system.

Volvo Car Group (VCG) is a standout amongst the most surely understood and regarded auto brands with deals in excess of 100 nations. The principal auto from VCG was created in 1927 at Gothenburg, from that point forward they have conveyed a few solid autos outfitted with the world-leading advancements. Today they have delivered some top-notch autos too, with various body writes: Sedans, Estates/Sports wagons, Cross Country vehicles, SUVs, Convertibles and so on [1] and still dedicated to convey top level fulfillment to clients with premium items and administrations, containing top notch guidelines. In 2012, Volvo Cars sold an aggregate of 421,951 autos. In respect to the quality of the brand, Volvo Cars is a little maker, with a worldwide piece of the overall industry of 1– 2 percent. The biggest market, the United States, spoke to about 16 for each penny of the aggregate deals volume in 2012, trailed by Sweden (12%), China (10%), German (7.5%) and the UK (7.5%).

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