Tractive System Interface Design TSI overview: Hardware: Provide the high-voltage/high-current path between Battery Packs and Motor Controller System TSV/GLV isolation interface Analog throttle interface with plausibility check Precharge/Discharge circuits Power up TSAL, RTDS, Motor controller, and Cooling System Firmware: Manage drive states and startup/shutdown conditions Measurement of voltage, temperature and other system characteristics Data communication via CAN and displayed by VSCADA Go into drive mode if all occur: Safety loop is closed Throttle is Plausible Throttle is below 0.5V Brake is pressed Drive button is pushed TSI Block Diagram Throttle Plausibility Drive State Diagram TSI Enclosure TSI PCB, CAN isolator, IMD are mounted on the low-voltage mounting plate Precharge/Discharge circuits are mounted on the high-voltage mounting plate GLV and TSV are isolated by a Garolite board Motor controller are mounted on the high-voltage side Current measurements made with electromagnetic current sensor on HV+ All wires connected to TSV are protected by resistors (TSMPs) or fuses Drop out of drive if one of the following occur: AIRS open Drive button is pushed Throttle Implausibility occurs Throttle control from SCADA tells us to drop out of drive Throttle and brake are pressed at the same time Contact information Project website: sites.lafayette.edu/motorsports/tsi Faculty Advisors: Prof. Chris Nadovich, Prof. John Nestor