전기자동차 변속기용 도그 클러치의 보킹 발생확률 분석

For electric vehicles that are equipped with transmissions mat include a dog clutch as a coupling device, speed control through the motor is essential for vehicle performance and ride comfort during gear shifts. Speed control is based on the analysis of the condition to ensure successful engagement of the dog clutch. The successful engagement of the dog clutch strongly depends on the geometry of the dog clutch components, force applied by the actuator, and relative angular velocity of the dog clutch. In this study, we developed a performance simulator based on the theoretical model of a dog clutch, and derived a probability map for the engagement of the dog clutch. Based on the probability map, we obtained the minimum slip speed for the successful engagement of the dog clutch. The result was then verified through a theoretical analysis. It was confirmed that the theoretically obtained result showed a similar trend compared to the test result, with an error of less than 20%.