The S80 and S100 ECUs represent the top of the range, differing only in the number of individual coils and sequential injectors they can handle.
Comprehensive input and output features are provided allowing sophisticated 6, 8 , 10 and 12 cylinder engines to be controlled easily and successfully.
An extremely high level of environmental protection has been implemented in its design allowing safe use in extreme conditions such as grass track, off road, marine and motorcycles.
ECU Functions
Engine Configuration
- 20,000 rpm capability
- Flexible and easily adapted to different OEM, crank, cam sensor arrangements
- Genuine four and two stroke support
- Twin spark engines
- Twin injector engines
- Sequential or grouped injection
- Individual coils, wasted spark or distributor
- Unequal coil firing capability
- Unequal injection angle capability
- Delayed sequential injection
- User controlled fan activation
- Sensors can be calibrated individually with a lot of preset options supplied
- Flexible Tacho Output
- Soft and hard rev limits
Main Fuel and Ignition Functions
- Two main fuel, spark and turbo maps selected by a dashboard switch
- Comprehensive start up fuelling options both time and temperature dependant
- Air, coolant and manifold pressure compensation maps
- Throttle transient increase compensation
- Throttle transient reduction compensation
- RPM and load breakpoints can be calibrated by the user
- Throttle or MAP as load
- All maps with one or two dimensional with interpolation as required
Lambda control functions
- Extensive lambda parameters table to ensure stable closed loop operation and emissions requirements can be met where needed
- Full three dimensional lambda target map
- Auto-tuning function
Turbo Control Functions
- Open or closed loop turbo pressure control via PWM valve
- Modify target turbo pressure by gear selected
- Modify target turbo pressure by vehicle speed
- Two control maps selected by switch on dashboard
- Active base PWM map for easy calibration
Idle Control Functions
- Open or closed loop idle speed control via PWM valve
- Closed loop idle target speed temperature dependant
- Active base PWM map for easy calibration
- Fuel enrichment table calibrated versus PWM percentage
ALS Control Functions
- Full ALS ignition and fuel maps
- ALS valve control together with map switching controlled by dash board switch
Cam Control Functions
- Open or closed cam advance control via PWM valve
- Static offset table to zero out electrical movement effects
- Active Cam Target Advance map, load and speed dependant
- Active base PWM map for easy calibration
- Vtec control
Water Injection
When not being used to control the camshaft, cam base PWM map can be used instead for water injection, giving complete load and speed dependance.
Flexible Input/Output
Three uncommitted input tables which use 0 5 volt inputs or any input the S100 knows already, linked to fuel and advance modifiers and a PWM output.
Launch Control
- Fully flexible first gear launch capability
- Extensively tunable to individual vehicles
Traction Control
- Fully adjustable from the dashboard
- Measured from all 4 wheels
Full Throttle Gear Shift
Cut
Shift cut capability with 1ms resolution, variable for each gear with
full switch de-bounce capability.
Voltage Compensation Tables
User configurable voltage compensation tables for injector dead time and
coil on time (dwell time).
Firmware
The ECU firmware is flash upgradeable via the serial port with a special
calbe and software. Current firmware and software published on
www.alons-autosport.nl.
CAN PC Communications
The ECU can communicate with the PC via our USB -> CAN converter.
This solves the problem of unreliable USB -> RS232 converters.
Data Logging
- Up the thirty six seperate items can be logged
- Three user selectable logging frequencies
- Up to 16 hours logging capability
- Graphing can be done on-line to the ECU
Diagnostics and Test Features
- Full sensor diagnostics and fault recording
- Extensive engine run time recording at different load and speed
conditions
- Ability to exercise injectors and coils without engine running for
fault finding
Other Features
- Waterproof Enclosure
- Sealed Latching Connectors
- Size 134 x 240 x 46 mm
- Weight 1130 gm
- All outputs protected against over temperature and over current
- Inputs protected against severe wiring mistakes and accidents
- Reverse battery protection
- Alternator load dump protection
Input and Output Features
Inputs
- Crank Shaft (Magnetic and Hall Effect)
- 2 x Cam Shaft (Magnetic and Hall Effect)
- Throttle Position
- Coolant Temperature
- Air Temperature
- Manifold / Barometric Pressure
- 2 x Lambda
- Oil Pressure
- Fuel Pressure
- Oil Temperature
- Battery Volts
- 3 x User Defined Analogue (Shared Use), 1 x User Defined Switch
- Launch Switch, 2 x Traction Control Switches
- Shift Cut
- 4 x Wheel Speed
- ALS / Second Map Switch
Outputs
- 10 x Coil Drivers
- 10 x Injector Drivers
- Tacho
- Fuel Pump Relay
- Fan
- Turbo Pressure Valve
- Turbo ALS Valve
- Cam Control Valve
- VTEC Valve
- Idle Valve
- Shift Light
- 5 x User Programmable Aux (Shared Use)