What does the Simple Transient Cycle Method mean?
3 Answers
Simple Transient Cycle Method, namely "Technical Requirements for Exhaust Pollutant Measurement Equipment of Gasoline Vehicles Using Simple Transient Cycle Method", is an annual inspection method for non-full-time four-wheel-drive gasoline vehicles, aiming to detect whether the vehicle's exhaust emission standards meet the requirements. The main equipment for measuring exhaust pollutants of gasoline vehicles using the Simple Transient Cycle Method includes chassis dynamometer, five-gas analyzer, flow meter, and computer control software for pollutant emission detection; This standard specifies the technical requirements and testing methods for the specifications, functions, and performance of the chassis dynamometer, five-gas analyzer, and flow meter, as well as the basic requirements for the functions of the computer control software. To improve China's air quality, it is necessary to strengthen the prevention and control of motor vehicle exhaust pollution. The state and environmental protection departments need to strengthen the control of motor vehicle environmental protection, continuously introduce corresponding laws and regulations, research and produce new energy motor vehicles, strictly control motor vehicle exhaust emissions, and optimize China's urban traffic structure.
The Simple Transient Cycle is a vehicle emission testing method. I often work at annual inspection stations and observe how it detects exhaust emissions by simulating dynamic driving conditions, such as acceleration and deceleration. Compared to older methods, it more accurately reflects real-world driving pollution issues by measuring carbon monoxide, hydrocarbon levels, and other emissions. Car owners might not be familiar with the technical term, but they clearly feel the difference: the test is stricter now. If emissions exceed standards, it indicates poor engine combustion or exhaust system malfunctions, requiring prompt repairs to avoid failing the annual inspection. Many cities have adopted this method to control air pollution. Regular maintenance of fuel injectors and spark plugs during daily driving can help prevent such issues. In short, it simplifies complex testing, makes inspections more efficient, and helps reduce haze sources.
As an ordinary car owner, I have personally experienced the simple transient condition method during vehicle inspection. It is no longer just a simple idle speed check, but simulates driving actions by putting the car on rollers to record emission levels at different speeds. The staff explained that this method can more accurately ensure the vehicle complies with environmental standards and reduces harmful emissions. Exceeding the limits can be troublesome, potentially requiring cleaning of the three-way catalytic converter or adjusting engine parameters, which is both costly and time-consuming. I see it as a health check for the car, ensuring less pollution and more savings, with regular maintenance of engine oil and air filters being crucial. Additionally, this method promotes the trend towards electric vehicles, contributing to cleaner city skies, making it overall reassuring and practical.
