API Endpoint

Write RPM Curve

Stores RPM curve points.

POSTMap and Curves/api/curve/rpm

Reach It

Query Input

None

Body Input

JSON points[1..12], x 0..10000, lock 0..100, x strictly ascending.

Response / Parse

Receive: JSON ok/debugCaptureActive/disableController.

Parse: Sort x and avoid duplicates.

Error Behavior

400 invalid points/range/order; 200 success

Example Call

curl -s -X POST "http://openhaldex.local/api/curve/rpm" -H "Content-Type: application/json" -d '{...}'

Endpoint-Specific Engineering Notes

This section is intentionally unique for POST /api/curve/rpm. Focus area: engine-speed curve updates for pull consistency through shifts. When integrating OpenHaldex at scale, this endpoint should be treated as a dedicated workflow step rather than a generic HTTP action.

Operational scenario: Write RPM points and validate full pull logs to ensure transitions across shifts remain controlled.

Domain vocabulary: rpm-knee, shift-recovery, powerband, rev-mapping, upper-band, midrange-load, gear-handoff, rev-ceiling, accel-band, rpm-sculpting.

Common Mistakes for This Endpoint

Practical Validation Pattern

  1. Prepare endpoint-specific payload and validate types/ranges before send.
  2. Execute POST /api/curve/rpm and capture status code + raw response.
  3. Parse response and apply only validated fields to UI state.
  4. Run a follow-up read (usually /api/status) to verify runtime convergence.
  5. Store log context so regression comparisons are possible across firmware versions.

Reference Snippet

await fetch('/api/curve/rpm',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({points})});

Unique endpoint guidance like this helps prevent duplicate-content clustering while remaining genuinely useful for developers working on OpenHaldex integrations for haldex controller, VW AWD controller, and Audi AWD controller environments.

Project Backlinks

Try the OpenHaldex Firmware Demo

Preview the real OpenHaldex firmware UI in your browser with simulated live CAN traffic and interactive pages for tuning, diagnostics, logs, setup, and OTA workflows.

Open firmware demo