GB/T 34402-2017 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 34402-2017 | English | 145 |
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Safety of motor vehicle product - Guidelines for risk assessment and risk control
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GB/T 34402-2017: Safety of motor vehicle product - Guidelines for risk assessment and risk control
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT34402-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.020
T 00
Safety of motor vehicle product -
Guidelines for risk assessment and risk control
Issued on: SEPTEMBER 29, 2017
Implemented on: APRIL 1, 2018
Issued by. General Administration of Quality Supervision, Inspection
and Quarantine;
Standardization Administration Committee.
3. No action is required - Full-copy of this standard will be automatically &
immediately delivered to your EMAIL address in 0~60 minutes.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Terms and definitions ... 4
3 General rules ... 5
4 Risk assessment ... 6
5 Risk control ... 12
Safety of motor vehicle product -
Guidelines for risk assessment and risk control
1 Scope
This standard specifies the basic process of risk assessment and the basic methods
of risk control of motor vehicle product safety.
This standard applies to the situation that in the process of motor vehicle product
defect analysis and identification, make risk assessment and risk control for the
dangerous events or situations of the motor vehicle products that have been sold.
2 Terms and definitions
The following terms and definitions apply to this document.
2.1 Hazard of motor vehicle product
Due to design, manufacture or identification, the vehicle itself, system, assembly or
parts are in an unsafe condition. It is appeared in the form of fault and failure of the
vehicle itself, system, assembly and parts.
2.2 Safety risk of motor vehicle product
It is the combination of the severity of dangerous events or situations that may result
from the risk of motor vehicle product endangering the safety of person or property
and the probability of occurrence.
Note. The dangerous events or situations in this standard include both what happened and
what could happen.
2.3 Severity
It is the degree of damage to personal and property safety that dangerous events or
situations can do.
2.4 Probability
It is the probability that motor vehicle product will have dangerous events or
situations in its useful life cycle.
Note. Probability refers to the probabilistic predictions of dangerous events or situations and
4 Risk assessment
4.1 The basic procedure of risk assessment
The basic procedure of risk assessment mainly includes.
-- Determine risk assessment objects;
-- Identify dangerous events or situations;
-- Assess the severity of dangerous events or situations;
-- Assess the probability of dangerous events or situations occurring;
-- Determine comprehensive risk level.
4.2 Determine objects of risk assessment
During the assessment process, determine the risk assessment object after
analyzing reasonably and trace back according to the actual situation of the fault or
failure of motor vehicle product. In particular, it is necessary to analyze whether the
fault or failure is related to design, manufacture or identification of motor vehicle
product.
-- In the event of the fault or failure of motor vehicle product due to the design, the
risk assessment object is all the batch of motor vehicle products that may have
adopted the same design;
-- In the event of the fault or failure of motor vehicle product due to the
manufacture, the risk assessment object is all the batch of motor vehicle
products that may have adopted the same manufacturing process;
-- In the event of the fault or failure of motor vehicle product due to the
identification, the risk assessment object is all the batch of motor vehicle
products that may have adopted the same identification.
4.3 Identify dangerous events or situations
4.3.1 Risk-transfer process
Identifying dangerous events or situations begins with a study of risk-transfer
process, and a technical analysis of the fault or failure of motor vehicle product.
Moreover, simulate potentially dangerous events or situations as well as possible
accidents or injury scenario. Risk-transfer process is shown in Figure 2.
Different types of vehicles have certain impacts on the severity in their use,
speed, accurate load number, weight, geometric dimensions, the level of active
and passive safety and nature of cargo. Such as, high-speed sports car,
medium and large buses, trucks and other high-speed, high-load vehicles, and
dangerous goods transport vehicles, etc. It is necessary to increase the
severity grade.
In addition to the above correction factors, in the process of correction of
preliminary assessment results of severity grade, correction may also be made
after comprehensive analysis based on the factors such as fault or failure
mode, situation of vehicle accident depth investigation, degree of casualties,
and analysis test results of defect engineering.
4.5 Assess the probability of dangerous events or situations
4.5.1 Probability level of occurrence of dangerous events or situations
The probability of occurrence of dangerous events or situations is divided into five
levels. high, relative-high, medium, relative-low and low. The probability assessment
includes two steps. preliminary assessment and result correction. Probability
assessment methods include. quantitative method, qualitative method and
combination of quantitative and qualitative.
4.5.2 Preliminary assessment of probability
In the case of fault or failure mode, the sample quality and quantity meeting the
requirements of quantitative analysis, use trend forecasting model in statistical
methods such as [such as Weibull Distribution model] or engineering analysis
method to predict the probability of occurrence of dangerous events or situations for
automotive products in their useful life cycle. The result of preliminary assessment of
probability can be identified according to the industry average of fault or failure
mode.
If the quality and quantity of the sample can not be analyzed quantitatively, organize
relevant professional and technical personnel to use qualitative approach to assess.
The qualitative assessment principles are as follows.
-- If the occurrence of dangerous events or situations is caused by design factors
such as materials, structural design of parts, manufacturing process, software
control strategy, overall layout or matching of components, the preliminary
assessment result of the probability may be high or relative-high;
-- If the occurrence of dangerous events or situations is caused by manufacturing
factors such as material processing, machining, improper assembly of
components or production management, the preliminary assessment result of
the probability may be relative-high, medium or relative-low;
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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