SuspensionAnalyzer - Rally Stage - Aston Martin DBR9

Suspension force and travel analysis

Sample Data

Attribute	Value
Source	motec
Category	rally_stage
File	`/Users/mhild/src/durandom/racing/b4racing/packages/source-motec/tests/fixtures/telemetry-NGP-Car_5-Aston_Martin_DBR9-Stage_138-20260122_120000.ld`

Available Channels (30): brake, brake_layer_temp_fl, brake_layer_temp_fr, brake_layer_temp_rl, brake_layer_temp_rr, brake_temp_fl, brake_temp_fr, brake_temp_rl, brake_temp_rr, brake_wear_fl, brake_wear_fr, brake_wear_rl, brake_wear_rr, clutch, damping_force_fl, damping_force_fr, damping_force_rl, damping_force_rr, distance, engine_temp, gear, handbrake, lap_distance_pct, lat_accel, long_accel, pitch, position_x, position_y, position_z, roll

Configuration

Setting	Value
Slice Type	`lap`
Metadata Only	False
Required Channels	time

When to Use

User asks about suspension behavior
User wants to understand spring/damper forces
User asks about suspension balance

Key Options

Option	Description
`include_travel`	Include suspension travel analysis (default: True)

Sample Output

Subjects Analyzed: 1 Context: Rally stage data

Default

Options: include_travel=True

Metrics Summary

d0c8e5bbf805540b (RSF driver)

Metric	Value
Front Rear Balance	0.925
Left Right Balance	1.01

Raw JSON output

{
  "metrics": [
    {
      "subject_id": "d0c8e5bbf805540b",
      "driver_name": "RSF driver",
      "wheels": [
        {
          "position": "fl",
          "spring": {
            "min_n": 1343.949951171875,
            "max_n": 8543.01953125,
            "avg_n": 3591.9463797468566,
            "range_n": 7199.069580078125
          },
          "damping": {
            "min_n": -14616.2001953125,
            "max_n": 6284.5400390625,
            "avg_n": 0.636281488124686,
            "range_n": 20900.740234375
          },
          "strut": {
            "min_n": -20081.400390625,
            "max_n": 401.1470031738281,
            "avg_n": -3594.960932117503,
            "range_n": 20482.547393798828
          },
          "rollbar": {
            "min_n": -2082.169921875,
            "max_n": 1951.56005859375,
            "avg_n": 3.6510587959568586,
            "range_n": 4033.72998046875
          },
          "avg_travel_mm": 178.60453226772756,
          "max_travel_mm": 256.7969858646393
        },
        {
          "position": "fr",
          "spring": {
            "min_n": 1391.22998046875,
            "max_n": 8866.6904296875,
            "avg_n": 3588.1230614322476,
            "range_n": 7475.46044921875
          },
          "damping": {
            "min_n": -10049.5,
            "max_n": 6633.14990234375,
            "avg_n": 15.620262493830433,
            "range_n": 16682.64990234375
          },
          "strut": {
            "min_n": -16158.2001953125,
            "max_n": 345.2040100097656,
            "avg_n": -3568.851903352281,
            "range_n": 16503.404205322266
          },
          "rollbar": {
            "min_n": -1951.56005859375,
            "max_n": 2082.169921875,
            "avg_n": -3.6510587959568586,
            "range_n": 4033.72998046875
          },
          "avg_travel_mm": 178.74482912907982,
          "max_travel_mm": 254.32199239730835
        },
        {
          "position": "rl",
          "spring": {
            "min_n": 1294.7099609375,
            "max_n": 10825.2001953125,
            "avg_n": 3905.1698377811967,
            "range_n": 9530.490234375
          },
          "damping": {
            "min_n": -24036.400390625,
            "max_n": 8178.3701171875,
            "avg_n": 11.59225934650291,
            "range_n": 32214.7705078125
          },
          "strut": {
            "min_n": -29954.099609375,
            "max_n": 514.4829711914062,
            "avg_n": -3920.2489413899175,
            "range_n": 30468.582580566406
          },
          "rollbar": {
            "min_n": -2024.81005859375,
            "max_n": 2302.070068359375,
            "avg_n": 26.671177978234933,
            "range_n": 4326.880126953125
          },
          "avg_travel_mm": 171.6268585417388,
          "max_travel_mm": 259.5070004463196
        },
        {
          "position": "rr",
          "spring": {
            "min_n": 1340.489990234375,
            "max_n": 10528.7998046875,
            "avg_n": 3858.8783722162166,
            "range_n": 9188.309814453125
          },
          "damping": {
            "min_n": -8614.3095703125,
            "max_n": 7965.08984375,
            "avg_n": 9.880842870282422,
            "range_n": 16579.3994140625
          },
          "strut": {
            "min_n": -15377.599609375,
            "max_n": 447.5010070800781,
            "avg_n": -3822.326056799411,
            "range_n": 15825.100616455078
          },
          "rollbar": {
            "min_n": -2302.070068359375,
            "max_n": 2024.81005859375,
            "avg_n": -26.671177978234933,
            "range_n": 4326.880126953125
          },
          "avg_travel_mm": 172.5794658262175,
          "max_travel_mm": 256.72799348831177
        }
      ],
      "front_rear_balance": 0.9247842423149375,
      "left_right_balance": 1.0067295252090527
    }
  ],
  "metadata": {
    "analyzer": "suspension_analysis",
    "title": "Suspension Analysis",
    "subjects_analyzed": 1
  }
}

Example Calls

How is my suspension working?

analyze(analyzers='suspension_analysis', event='...')

Analyzes all suspension forces and calculates balance

Generated from b4racing.analysis.analyzers.suspension_analysis.SuspensionAnalyzer

Sample Data​

Configuration​

When to Use​

Key Options​

Sample Output​

Default​

Metrics Summary​

Example Calls​

How is my suspension working?​