Skip to main content

2.4 | Hydraulic & Vehicle Interfaces

The COMMAND hardware platform supports multiple hydraulic and vehicle interface types depending on machine configuration, hydraulic architecture, and available machine integration capability.

These interfaces allow the COMMAND ECU to control implement movement during automatic control operation.

Supported interface types may vary depending on:

  • machine compatibility,
  • installed hardware,
  • hydraulic configuration,
  • and supported machine profiles.

Hydraulic Control Interfaces

COMMAND supports direct hydraulic control through compatible electrohydraulic valve systems.

Depending on machine configuration, hydraulic control may include:

  • single-channel height control,
  • dual-channel height and Cross-Slope control,
  • or implement-specific hydraulic functions.

Supported hydraulic interface methods may include:

  • PWM hydraulic valve control,
  • analog hydraulic interfaces,
  • and externally integrated valve systems.

Hydraulic outputs are controlled by the COMMAND ECU during automatic control operation using target elevations and Cross-Slope targets calculated by Level COMMAND.

Vehicle Integration Interfaces

Depending on machine compatibility, COMMAND may integrate with supported vehicle control systems using compatible communication interfaces.

Supported interface methods may include:

  • J1939 vehicle communication,
  • CANBUS-based machine integration,
  • and supported OEM hydraulic control interfaces.

Vehicle integration capability may vary depending on machine manufacturer, hydraulic architecture, and available interface support.

Manual Hydraulic Operation

Manual hydraulic operation remains available whenever automatic control is Disengaged.

Depending on machine configuration and hydraulic integration method, manual implement control may be performed using:

  • tractor SCVs,
  • joysticks,
  • external hydraulic controls,
  • or OEM machine control inputs.

Some machine configurations may also allow limited manual hydraulic input while automatic control is Armed.

Automatic Control Authority

When automatic control is Engaged, the COMMAND ECU controls hydraulic outputs using target information calculated by Level COMMAND.

Automatic hydraulic movement may be limited or suspended if:

  • positioning quality becomes invalid,
  • hydraulic faults are detected,
  • operating conditions fall outside configured limits,
  • or automatic control disengages.

The operator may disengage automatic control at any time using the configured disengagement controls or Arm/Engage switch.

Interface Compatibility

Supported hydraulic and vehicle integration methods may vary depending on:

  • machine type,
  • hydraulic architecture,
  • installed COMMAND hardware,
  • software licensing,
  • and supported machine profiles.

Refer to applicable COMMAND installation and commissioning documentation for machine-specific compatibility and hydraulic integration requirements.

Back to top