GPRP-DI Pro

The GPRP-DI Pro Package is based on MoTeC's GPRP-DI Package with the addition of the following features:

• Torque-based throttle control used throughout the package:
  • Ignition delay and cut-off are also used for torque reductions. They are combined with Throttle Based Control for fast response and seamless transitions;
  • Torque is relevant for vehicle acceleration to improve traction control;
  • Much faster and more accurate control response than Boost Control;
  • Improved drivability with a torque-based accelerator pedal and seamless transition between Throttle, Overrun and Idle Control;
  • Torque limits based on engine speed, vehicle speed, gear, wheel torque, race time, fuel composition and more.
• Traction control:
  • Controls front to rear wheel slip, closed loop to a target value;
  • Torque reduction by controlling throttle, ignition timing or cutoff for quick response;
  • Dynamically adjustable and adjustable crosshair slide;
  • Option to limit slip to the fastest drive wheel.
• Traction model system:
  • Controls maximum wheel torque via throttle control;
  • Dynamically adjustable for downforce, G-force (lateral and vertical) and weight transfer.
  • This open-loop system works in conjunction with closed-loop slip-based control.
• Torque Limit Response System, to help improve throttle-based torque limiting (e.g. for traction control).
• Paddle Shift Gearbox Control for Sequential Gearboxes:
  • Feed pump support with soft start;
  • Rotation matching using delay or cutoff;
  • Shift error detection and automatic repetition;
  • Automatic gear shifting, adjustable for road, race and drag;
  • Automatic gear change on rev limiter.
• Flexible fuel and dual fuel control:
  • Fuel type selection based on model, reduces adjustment time;
  • Comprehensive improvements in adjustability;
  • Support for ethanol sensors;
  • Dual Fuel – shift input with a driver switch;
  • Flex Fuel – vary secondary injector input based on fuel composition;
  • Alternative Fuel Engine Load Average – Allows for higher limits and different trims on E85.
• Boost control for dual banks:
  • Two separate closed loop control systems with respective Boost Control solenoid outputs and boost pressure sensors.
  • Comprehensive tuning including influences for barometric pressure and gearing;
  • Allows for various intercooler configurations, including water-to-air with pump and fan control;
  • Integrates with the torque control system.
• Servo Boost Control
  • Controls servo-operated flush valves or dual flush valves;
  • Multiple sources for aiming position;
  • Use for boost control, wastegate or turbo surge prevention.
• Dual bank supply:
  • Double plenum with or without balance tube (calculates cross flow);
  • Each bank can be supplied from its respective set of sensors: MAF, Boost, MAP, TP, AT.
• Improved tuning tools:
  • Set an intake manifold pressure limit to adjust engine efficiency;
  • Set a throttle servo aiming limit to adjust the throttle area;
  • Boost Control bank copy Q functions. Tune one bank and copy to another for convenience.
• Fallback and limp home strategies:
  • Support for redundant sensors; if one sensor fails (e.g. MAP), the sensor in the other bank is automatically replaced;
  • Redundant crank position sensor;
  • Most critical sensors have a fallback strategy.
• Measuring vehicle speed using a combination of wheel speed sensors, engine speed and gear, acceleration limits and GPS.
• Gas pedal:
  • Translation table to change pedal feel, linked to driver switch;
  • Dominant engine torque for greater consistency;
  • Absolute or relative torque modes;
  • Pedal damper for better control under light loads.
• Vehicle tilt control to avoid wheelies in drag cars.
• Supported cross-bank exhaust manifolds (for dual-bank closed-loop lambda).
• Multi-level warning system.
• Clutch slip control for protecting or maximizing clutch performance.
• Custom CAN transmission (4 messages).
• Cruise Control with speed limiter and preset speed functions.
• 10-position wheel circumference driver setting.
• Water-to-air intercooler, pump, fan and sensor controls.
• The camshaft aiming position replaces the quick-thrust (launch and anti-delay) construction.
• Fuel pump control for multiple PWM pumps.
• Anti-delay system:
  • Controls Ignition Timing, Fuel Volume, Ignition Cutoff, Engine Speed Limit, Boost Aim and Torque (opens the throttle);
  • Configuration for Circuit, Rally or Roll Racing (rolling launch);
  • Basic resource 'Flames'.
• Engine oil level sensor with warning.
• CPU usage improvements.
• Vehicle roll rate, vehicle pitch rate and vehicle tilt angle sensor inputs.
• Switch Driver improvements, including Combine and Counter Switches.

• Integrated inertia fuel cut with torque control:
  • Sets a minimum throttle opening;
  • Controls torque via Ignition Timing once at minimum throttle opening;
  • Adjustable amount of fuel cut and/or ignition cut.
• BOV activation for overboost.
• Closed loop oil pressure control.
• Standardize PWM outputs:
  • A table is used to set the final output duty cycle. This overrides the Drive, Polarity, and Min/Max settings.
  • Increases flexibility and allows correction of actuator non-linearity.
• Exhaust Lambda Unavailable Fuel Volume Trim.
• Piston cooling/squirt control.
• Silencer Flap Control.
• Fuel purge control (charcoal bin).
• Idle speed control combines ignition timing and throttle control.
• Detonation control:
  • Single beat event rejection;
  • Ignition delay, fuel addition and ignition cut-based control;
  • Ignition Retard Limit mapped to Engine Speed and Load.
• Take-off assistant for high-response engines and light or push-button clutch:
  • Controls engine speed based on accelerator pedal position;
  • Can be used as a lightweight launch control.
• Transfer Clutch Control (AWD):
  • Closed-loop current or hydraulic pressure control;
  • Accumulator pressure and pump control;
  • Control based on acceleration, braking and wheel slip.
• Coolant servo thermostat.
• Dual Boost servo control with zero tracking and fault handling.