Identification of causes of bus safety accidents

Passenger car safety accident cause identification is a process of professional technical identification of passenger cars involved in safety accidents. It mainly inspects the safety and technical status of the vehicle's braking, steering, driving, lighting, tires, safety devices and other systems.
This identification aims to clarify whether the system failure or damage of the accident vehicle existed before the accident or was caused by the accident, determine whether these failures or damage are sudden or inherent, and analyze the degree of connection between the vehicle failure and the accident. Through identification, a factual basis can be provided for accident liability division and damage compensation.
In passenger car safety accident cause identification cases, Zhongke Testing can provide passenger car safety accident cause identification services.

Passenger cars can be divided into single cars and trains according to the overall structure. Bicycles are basic models and are often divided into large, medium and small according to the total weight of the bus or the number of seats.
Passenger buses can be divided into tourist buses, city buses, road buses and sightseeing buses according to their uses.

JT/T 1095-2022 Flame retardant properties of interior materials for commercial buses
JT/T 1026-2021 General technical specifications for pure electric city buses
JT/T 1343-2020 Technical specifications for dual-source electric city buses
JT/T 1342-2020 Technical specifications for fuel cell buses
TB/T 3443.2-2016 Coding rules for rolling stock types, models and vehicle numbers Part 2: Passenger cars
GB 38032-2020 Safety requirements for electric buses
GB 13094-2017 Structural safety requirements for passenger cars
GB/T 7726-2009 Mechanical connection device for articulated buses
GB 38262-2019 Combustion characteristics of passenger car interior materials
GB/T 16887-2008 Structural safety requirements for sleeper buses
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A travel company purchased a batch of small buses to carry passengers. Seven months later, one of the buses was involved in an accident while driving, resulting in one death and three serious injuries. However, when determining liability for the accident, the travel company believed it was a problem with the quality of the passenger car, while the car sales company insisted that it was a problem with the travel company's driving.
was entrusted by the court to conduct an appraisal and analysis of "whether there are quality problems" in the buses involved.
identification analysis results: The
identification analysis expert team inspected the vehicle involved in the case. Through a comprehensive quality and technical analysis of key accessories such as the drive shaft, oil pipe, casing, and circuit board, the following suggestions and conclusions were made: The cooperation between the drive shaft yoke and the cross shaft of the passenger car involved in the
case was obviously abnormal, resulting in eccentric wear between the yoke and the cross shaft. Long-term wear caused the drive shaft to break, leading to the accident.
Therefore, the quality problems of the bus involved were the main cause of the accident.