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New Methods and Systems for Monitoring the Functional Stability Parameters of Wheeled Vehicle Powertrain
ISSN: 0148-7191, e-ISSN: 2688-3627
To be published on September 15, 2020 by SAE International in United States
The methods and principles of monitoring and diagnosing the parameters of powertrains are generalized, which allows to increase the wheeled vehicles operational reliability. Systems for monitoring the functional stability parameters of the most sensitive to operating conditions systems and assemblies of vehicles have been developed on the example of a cylinder-piston engine group and steering system. An improved method for diagnosing the steering system of an articulated wheeled vehicle, which significantly affects the safety of its use, is proposed based on the use of angular accelerations of sections in the road plane as a diagnostic parameter. Obtained the dependence for determining the angular accelerations for the case of the random installation of two sensors of the mobile registration and measuring complex on the vehicle, which allows to increase the accuracy of measurements. Experimental studies to diagnose the steering system of wheeled vehicles with various operating times have been carried out. It has been established that when running up to 6000 hours, the diagnostic parameter can be reduced to 15%. Theoretical and experimental studies were carried out for the cylinder-piston group, which established that the amount of gas passing through the valve mechanism of the cylinder head is proportional to wear and amounts to 5-15% for new and 25-40% for repaired engines of the total crankcase gases. Using the obtained dependences, a method for assessing the technical condition has been developed, which differs from the existing with separation of gas flows passing into the crankcase through the gaps "valve stem – guide sleeve" and "sleeve – piston", and a parameter control system that allows to determine the speed and quantity of gases passing through these gaps in all operating modes of new and repaired engines. The proposed system allows to increase the accuracy of assessing the technical condition of the cylinder-piston engine group by 40%.
- Mikhail Podrigalo - Kharkiv Automobile and Higway University
- Yevhen Dubinin - Kharkiv Automobile and Highway University
- ANDRII MOLODAN - Kharkiv Automobile and Higway University
- Oleksandr Polianskyi - Kharkiv Automobile and Higway University
- Mykhailo Kholodov - Kharkiv Automobile and Higway University
- Dmytro Klets - Kharkiv Automobile and Higway University
- Anton Kholodov - Kharkiv Automobile and Higway University
- Zadorozhnia Viktoriia - Kharkiv Technical University of Agriculture
- OLEKSANDR KHVOROST - Ivan Kozhedub Kharkiv National Air Force
- Potapov Mykola - Kharkiv Automobile and Higway University
- Alex Stepanov - Kharkov National Auto and Highway University