PACCAR

E-Truck Powertrain and Braking

The E-Truck project is a 4-year project to convert a diesel medium-duty truck to a battery electric vehicle. This student team will support this effort by focusing on the powertrain and braking sub-system design and integration. This includes working both with simulations and physical components to define and execute the intended functionality to move and stop the retrofitted truck. This student team will build on defined requirements from prior efforts and collaborate with other capstone teams (as partners) and the E-Truck Registered Student Organization (RSO) (as a customer) to specify the interfaces (e.g. between the eAxle and the battery), create software to communicate with other systems via CAN protocols, and evaluate overall system performance to meet defined mission. This student team will work within the following design parameters and performance: -All research and design work will build on prior studies and structural analysis to avoid re-work. -The resulting powertrain sub-system must perform under operational conditions (P&D drive cycle, environmental, etc.) as specified by RSO. -Software developed must undergo Hardware-in-the-Loop verification to ensure compliance with road-worthy product rules. This student team will work toward the following outcomes: 1. Finalize drawings, CAD, and structural analysis for all major components installed (e-axle, driveshaft, etc.) 2. Define system requirements and architecture, both elements and interfaces internal to powertrain and at the system boundary. 3. Evaluate system performance for selected components (e-axle, batteries, brakes) via simulation and HIL (requires SW code for later integration with physical components). 4. Create simulation and bench prototype for regenerative braking system (requires accompanying code and physical components).