Launch Control
The Launch Control function allows control of RPM and the power produced by the engine during the launching of the vehicle. This is done by introducing a temporary RPM Limiter, together with fuel and ignition mapping.
|
Page Contents |
|
Warning
|
Wiring Tab
Options
Input Type
Always On
Launch Control will always be active when all conditions are met in the Launch Control Tab.
Launch Switch
A Launch Switch is to be wired to the Elite ECU to enable Launch Control.
Clutch Switch
Allows the Launch Control function to operate when the Clutch Switch is engaged. A Clutch Switch should be configured as a separate function.
Trans-Brake Input
Allows the Launch Control function to operate when the Trans-Brake Input is active. Trans-Brake should be configured as a separate function.
Connections
Launch Control Switch Input
Select an appropriate input to use for the Launch Control Switch. An SPI or an AVI (Analogue Voltage Input) can be used.
Connection Type
SPI
An SPI (Synchronised Pulsed Input) requires configuring of the edge and the type of Sensor to be connected.
Edge Select
Falling is used when the input is grounded when the switch is activated. Rising is used when the input is supplied voltage when the switch is activated.
Sensor Type
Set to Hall Effect for all switch inputs
Pullup
Enables a pullup if required to generate a voltage when the switch is off.
AVI
An AVI will require Switch On and Switch Off voltages to be configured so the Elite ECU can know which voltages on the AVI meet the conditions required.
Switch On Voltage
The voltage either above or below where the switch is considered to be ON. When selecting an appropriate value some consideration should be given to allow for voltage fluctuations.
Switch Off Voltage
The voltage either above or below where the switch is considered to be OFF. When selecting an appropriate value some consideration should be given to allow for voltage fluctuations. Eg. if the switch is at 5V when it is Off and is grounded to 0V when the switch is On, you would set the On voltage to 1.0V and the Off Voltage to 4.0V.
Example 1
The switch is at 5V when it is Off and is grounded to 0V when the switch is On. Correct settings with tolerance would be to set the On voltage to 0.5V and the Off Voltage to 4.5V. i.e. when the voltage falls below 0.5V it is considered to be ON, and when it rises back above 4.5V it is considered to be OFF.
Example 2
The switch is at 2.5V when it is OFF, and is at 12V when it is ON. Correct settings with tolerance would be to set the On Voltage to 4.5V and the Off Voltage to 3.0V. i.e. when the voltage rises above 4.5V it is considered to be ON, and when it falls back below 3.0V it is considered to be OFF.
Launch Control Tab
Cut Method
Select if Fuel or Ignition is to be used to limit the engine. The same Cut Type (Hard or Soft) will be used as set in the RPM Limiter function.
Enable Coolant Validation
Allows engine Coolant Temperature to be used to enable Launch Control. This can be set to prevent Launch Control being used on a cold engine.
Min Coolant Temp
The engine coolant temperature must be above this amount before Launch Control can be activated.
Enable TPS Validation
Allows the Throttle Position Sensor to be used to enable Launch Control.
Min TPS
The Throttle Position Sensor must be greater than this amount for Launch Control to be active.
Enable Vehicle Speed Validation
Allows Vehicle Speed to be used to enable Launch Control.
Max Vehicle Speed
Launch Control will only operate below this amount of vehicle speed.
Related Tables
Launch Control
Fuel Enrichment
This table allows 3D (8x8) fuel corrections to be applied while the Launch Control is active. Often additional fuel is added to assist with turbo spool up when near to the desired RPM for launch. This is typically mapped over RPM and Load and should have values of 0% when not under actual launch RPM and Load.
Ignition Advance
This table becomes the new 3D (8x8) Ignition Base table while the Launch Control is active. The numbers in this table reflect actual ignition timing, and are not a correction amount. Typical numbers would reflect normal ignition timing until the engine is near to the desired launch RPM and load. When this point has been reached, retarded values would be used to generate high exhaust pressure with little actual engine power.
Related Articles
Torque Converter Control Function
The Torque Converter Control function allows the electronic control of the torque converter lockup, as well as the ability to "dump" torque converter line pressure in order to control engine power in a drag racing application, as well as assisting ...How Launch Control Works
Today we’re delving into the subject of Launch Control. What it is, how it works and how it can help you win races! But before we get into the specifics of things, we need to understand the problem that we’re trying to solve. The Basics In order for ...LPG Function
LPG function is used when a vehicle has a LPG system fitted to the engine.Wiring a switch input for LPG select enables the ECU to disable the injectors and fuel pump when the LPG switch is active. Page Contents Wiring Tab Connections Switch Input ...Alternator Control
The Alternator Control function allows for the Elite ECU to control the charging voltage of alternator that supports this function. This is done with a duty signal that is sent to the voltage regulator to alter the charging rate. A Target Voltage is ...Traction Control
The Traction Control function allows for multiple wheel speed inputs to be used to detect loss of traction. The Elite ECU can cut cylinder outputs to reduce power and regain lost traction. Page Contents Wiring Tab Options Traction Control Type ...