Embedded Files
Project Management
Project Management
Project Objectives
Project Objectives
High Priority Objectives
Develop a traction control (TC) system for straight-line dynamic events:
Acceleration and brake test
Second Priority Objectives
Develop a TC system for combined driving and cornering events:
Skid pad, autocross, and endurance
Other Constraints and Issues
FSAE rules make it difficult for a TC system to be implemented using a hydraulic braking system
The TC system must be implemented on a microcontroller or standalone engine control unit (ECU) to control engine spark or fuel input
WOW Design Solution
A complete TC system with cockpit-adjustable settings for the various dynamic events
Risk Reduction
Risk Reduction
Areas of High Risk
Accurate Peak Slip Ratio Reference State Determination
Targeted slip ratio must be accurate for effective controller
System Modeling
The car is a complex system
Must be linearized to utilize linear control techniques
Engine Torque Output Control
Require high resolution of control and quick responses
Must not be too aggressive and damage engine
Risk Elimination Strategies
Peak Slip Ratio Characterization
MATLAB vehicle simulation
Relate a measured car state to the theoretical maximum performance state
System Modeling
Derive comprehensive linear model of the car relating engine cut to tire slip ratio
Linearize engine torque model using engine dynamometer data
Linearize tire thrust force model using tire data
Calculate system inertia from CAD
Preliminary Circuit Design and Testing
Design fuel and spark cut systems
Create risk reduction circuits to test component performance before installing on the car
Intermediate Milestones
Intermediate Milestones
Perform MATLAB simulations and develop a preliminary controller design
Design fuel and spark cut circuits
Test fuel and spark risk reduction circuits
Design mechanical components including sensor mounts and controller housing
Install system on the car
Test and tune system
Install cockpit-adjustable system controls
Page updated
Report abuse