REDUCING THE NEGATIVE INFLUENCE OF KINEMATIC DISCREPANCY IN THE TRANSMISSION OF FOUR-WHEEL DRIVE WHEELED VEHICLES

• Published in: Naucnyj zurnal Kubanskogo gosudarstvennogo agrarnogo universiteta pp. 840 - 852
• Main Authors: Ismailov V. A, Melikov I. M
• Format: Journal Article
• Language: English
• Published: Kuban State Agrarian University 30.12.2015
• Subjects: BLOCKED DRIVE; FOUR-WHEEL DRIVE WHEELED VEHICLE; KINEMATIC DISCREPANCY; TRACTION DYNAMICS
• ISSN: 1990-4665; 1990-4665

The article discusses different types of drive axles of all-wheel drive machine. It is shown that if blocked drive of driving axle easy, it is able to provide the best traction drive qualities of the all-wheel car, if compensation of kinematic mismatch in movement of front and rear wheels. The article provides analysis of the causes of kinematic mismatch and its consequences. The analysis was given for the existing methods to reduce negative influence of kinematic discrepancy on the work of the four-wheel drive wheeled machine in locked mode. The method of reduction of kinematic mismatch by regulations of the air pressure in the tires of the wheels with one-time control of the leading moments on the axes was suggested. We show the relationship between the difference of kinematic radii of the wheels of different axles and the difference of the moments leading to them. The algorithm and description for the system of automatic control of air pressure in the tire, which realizes the proposed method, were presented. We have described experimental methods of determining the energy losses evaluation from kinematic mismatch when moving all-wheel drive machine. The article presents the results of the this assessment in relation to the agricultural wheel tractor of class 5 moving at different substructures