하이브리드 전기 자동차의 주행 모드에 따른 회생제동 토크 분석

Regenerative Braking is main issue of Hybrid Electric Vehicles(HEV). To analysis regenerative braking torque of HEV driving experiment is performed by using a test HEV in various driving modes. Driving modes are CITY MODE, HIGHWAY MODE and ROUTE MODE. Torque is measured by torque sensor attached to driving shaft during experiments. In this study, sheer type strain gages are used to construct torque sensor and telemetric signal amp is used to transport and amplify sensor signal of rotating drive shaft. Torque data of each cycle are sorted by vehicle speed and applied torque range. Characteristic of torque data of each driving mode is represented by time distribution map. Torque data of each driving mode can be used for development of control strategy and criteria of durability test for HEV mechanical components.