Mission

[image]. ONE TEAM ONE DREAM. FOX eApcEup.

OBJECTIVE. All ATV parameters, from weight distribution to drivetrain, are meticulously entered into IPG CarMaker for an accurate simulation baseline. Comprehensive tests, including acceleration, braking, and sledge pull , provide detailed insights into vehicle behavior under varied conditions. The simulation identifies potential failure points early, allowing us to address them proactively, minimizing risk in physical prototypes..

7. Wheel base & Track width. 8. Distance CoG to front axle/ rear axle.

S.No Test Vehicle parameter Influence of Performance 1 Acceleration Test Vehicle Mass Affects inertia and acceleration potential. Lower mass = faster acceleration Motor Torque & Power power/torque enables quicker acceleration. Tire Traction and Compound Affects grip, influencing acceleration without slippage. 2. Brake Test Brake Force Distribution (front-rear bias) Impacts braking stability and stopping distance. Suspension Setup Stiffer suspension reduces dive and helps maintain stability during braking. ABS System Prevents tire lock-up, improving control and reducing stopping distance. 3 Constant Radius Cornering Center of Gravity (CoG) Lower CoG enhances stability in corners by reducing body roll. Suspension Stiffness and Roll Stiffness Affects body roll and cornering stability; stiffer setup aids cornering. Weight Distribution Balanced distribution improves stability and traction in turns. 4 On-Center Test Steering Ratio and System Response mpacts responsiveness and sensitivity at center position, crucial for straight-line stability. Tire Lateral Stiffness Affects vehicle’s response and steering precision at small steering inputs. Suspension Alignment (toe, camber) Optimized alignment improves stability and reduces wandering. 5 Step Steer Steering System Characteristics Quicker response systems improve handling during rapid steering changes. Suspension Stiffness and Roll Control Stiffer suspension reduces body roll, aiding stability during sudden steer maneuvers..

Kinematics and Compliance (K&C) analyses are essential evaluations in vehicle dynamics that assess how a vehicle's suspension and steering systems respond to different conditions..

z. KINEMATIC VERTICAL TEST:. PARAMETRES FRONT REAR BUMP STEER Toe changes from -0.9 deg to 0.01 deg BUMP CAMBER -0.350811125 0.195695 DAMPING & SPRING RATIO SUSPENSION RATE 6210 13000 VERTICAL WHEEL TRAVEL 140/85.29 101.6/50.87 RECESSIONAL WHEEL TRAVEL 70 50.8 TOTAL TRACK CHANGE 115 16.235 WHEEL RATE 4918 5835.

KINEMATIC STEER TEST:. PARAMETERS FRONT & REAR STEER RATIO 4:1 FULL LOCK INNER & OUTER WHEEL ANGLE 44 & 25 ACKERMANN PERCENTAGE 104.87 % CAMBER CHANGE WITH ROAD ANGLE (of 3 deg) -3.39 to +3.35 STEERING WHEEL ANGLE ( LOCK TO LOCK) 360 YAW RATE (rad/s) 9.91 LATERAL ACCELERATION.

ACCELERATION:. OBJECTIVE:. Assess the vehicle's acceleration capabilities under various conditions, ensuring it meets predefined performance criteria. This includes measuring acceleration times from standstill to specific speeds and evaluating how these metrics align with design specifications..

BRAKE:. OBJECTIVE:. Determine the effectiveness of the vehicle's deceleration under specific conditions and control maneuvers. To ensure the vehicle meets safety standards by testing its ability to stop safely in different scenarios, such as emergency braking or panic stops..

CONSTANT RADIUS CORNERING:. OBJECTIVE:. The Constant Radius Cornering (CRC) Test evaluates a vehicle's handling characteristics and stability during turns with a constant radius. This assessment focuses on understeer and oversteer behavior. Conducting this test helps optimize vehicle dynamics and verifies the effectiveness of stability control systems..

RESULT:. LATERAL ACCELERATION VS TIME. STEERING WHEEL ANGLE VS TIME.

STEP STEER:. OBJECTIVE:. The step steer test aims to evaluate steering response, test stability, optimize control algorithms, validate dynamics models, improve driver feedback, and ensure safety and performance. Assess the vehicle's ability to maintain stability during a sudden steering maneuver. Identify tendencies such as understeer, oversteer, or neutral steer..

STEERING WHEEL TORQUE VS TIME. YAW RATE VS TIME. PARAMETERS VALUE Steering input Vehicle speed (km/h) Lateral acceleration (m/s2) 73.49 Slip angle (deg) Below 3 degree Understeer Gradient( deg/g) '24.03.

ON CENTER:. OBJECTIVE:. Aims to evaluate the vehicle's steering behavior and stability when the steering wheel is centered, ensuring that the vehicle tracks straight without unintended deviations..

LATERAL ACCELERATION VS TIME. ROLL VS STEER WHEEL ANGLE.