Mean Lean Machine - Overview

Arcimoto Mean Lean Machine

Simulation & Validation Data

Accelerometer and tilt data collected on-vehicle before and after the suspension geometry changes, alongside Unity simulation screenshots of each evaluated condition.

Vehicle Data - Before Adjustments

On-vehicle accelerometer (x, y, z) and tilt angle logged prior to any geometry changes. The instability event in this data corresponds to the geometry condition in Simulation A.

Acceleration vs Tilt (Before Adjustment) - x, y, z accelerometer channels overlaid with tilt angle, showing steering instability event
FIG 01Acceleration vs. Tilt - Before Adjustment. Three-axis accelerometer data (blue) overlaid with tilt angle (red). Steering instability burst visible in all three channels.

Unity Simulation - Geometry Comparisons

Screenshots from the Unity suspension-geometry simulator, showing three evaluated conditions. Each pair shows the original geometry (left) alongside the optimized output (right).

Simulation AGeometry condition corresponding to the steering instability event in the before data
Depicts instability condition - see FIG 01
Before
Simulation A - before geometry changes, showing problematic Ackermann / steering geometry producing instability
FIG 02A - Original geometry
After
Simulation A - after geometry changes, showing corrected steering geometry
FIG 02B - Optimized geometry
Simulation BSecondary geometry condition evaluated by the optimizer
Before
Simulation B - before geometry changes
FIG 03A - Original geometry
After
Simulation B - after geometry changes
FIG 03B - Optimized geometry
Simulation CTertiary geometry condition evaluated by the optimizer
Before
Simulation C - before geometry changes
FIG 04A - Original geometry
After
Simulation C - after geometry changes
FIG 04B - Optimized geometry

Vehicle Data - After Adjustments

Same test route logged after implementing the geometry changes. The instability event is absent; acceleration and tilt data are consistent with simulation predictions.

Accelerometer - after adjustment, x, y, z channels with tilt angle overlay, showing reduced instability
FIG 05Accelerometer - After Adjustment. Three-axis data overlaid with tilt angle. Instability event absent.