Gear Detection

Gear Detection

The Gear Detection function allows the Elite ECU to know or to calculate which gear the transmission is in either for tuning or datalogging purposes. This can be achieved by a gear position sensor, a gear ratio calculation simply by the use of a vehicle speed sensor and engine RPM, RPM drop with each gear selected, or with a gear switch.


Wiring Tab

Options

Gear Maximum Number

Enter the number of forward driving gears. From 1 to 6 are available.

Gear Detection Type

Select the method used to detect gear position.

Gear Ratio

This method requires the Gear Ratios function to be enabled and configured.

Gear Switch

This method is used with a gear change switch, such as a load sensor, to increment the gear number. A Clutch Switch activation will reset the Gear number back to zero.

Gear Position Sensor

This method is used when there is a sensor on the gearbox that reports a different resistance for each gear selected. This is the only Gear Detection Type that can be used when the Transmission Type is set to Automatic.

RPM Drop

This method is used when only Engine RPM is available, and is used primarily for drag racing where gears will not be downshifted.

CAN Input

This method is used when the Gear Position is transmitted via the vehicle CAN.

Selector Position Enable

Select the method used to detect gear position.

Disabled

Select when there is no Gear Selector Position Signal

Voltage Input

Selected when the supplied calibration data for the sensor is in voltage. This will require an Analogue Voltage Input (AVI) to be used and configured.

CAN Input

This method is used when the Selector Position is transmitted via the vehicle CAN.

Connections

Gear Switch Input

Available when Gear Switch is set as the Gear Detection Type. Select an AVI or SPI to be used. Gear Switch input requires the Clutch Switch function to also be configured and wired. The Switch On and Switch Off voltages should be entered to suit the switching conditions.

Gear Voltage Input

Available when Gear Position is set as the Gear Detection Type. Select an AVI or SPI to be used.

Selector Position Input

Available when Voltage Input is set as the Selection Position Enable Type. Select an AVI or SPI to be used.

Connection Type

AVI

An AVI (Analogue Voltage Input) is suggested.

Pull up

Enables a 1k pull up resistor to 5V.

Typically the pull up should be enabled with any two-wire temperature sensor, and disabled for sensors with their own voltage supply. If the sensor is being shared with another ECU, such as with a piggyback installation with an OEM ECU, then the other ECU will generally include a necessary pull up and this setting should be set to Disabled.

SPI

An SPI (Synchronised Pulsed Input) can be used where there are no available AVIs.

Sensor Type

Set to Hall Effect for all analogue inputs

Pull up

Enables a weak 10k pull up resistor to 5V.

Typically the pull up should be enabled with any two-wire temperature sensor, and disabled for sensors with their own voltage supply. If the sensor is being shared with another ECU, such as with a piggyback installation with an OEM ECU, then the other ECU will generally include a necessary pull up and this setting should be set to Disabled.


Gear Switch Tab

Available when the Gear Detection Type is set to Gear Switch.

The Gear Switch will activate when the Switch On Voltage amount set in the Wiring Tab has been exceeded and the Gear Number will increase by 1. Another activation of the Gear Switch is only allowed after the Switch Off Voltage has been exceeded.

Gear Switch Reset Time

The amount of time after the Clutch Switch has been activated before the Gear Number will reset to 0.

Clutch Release Time

The amount of time after the clutch switch has been deactivated before the Gear Number will increase from 0 to 1.

Gear Switch Debounce Time

The amount of time after the Gear Number has increased by 1 before another Gear Number increase is allowed.


Gear Position Tab

Available when the Gear Detection Type is set to Gear Position, for both Automatic and Manual Transmission types.

This allows for the Gear Position Sensor calibration to be created. By pressing the Calibrate button with the gear selector in the listed position, the Nominal Voltage value will be filled out automatically with the currently read voltage. This auomatically calibrates each gear position.

1st

Nominal Voltage

The voltage read by the gear position sensor when the transmission is in first gear.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for first gear. If the voltage of the gear selector falls within this distance from the nominal voltage, the selector is considered to be in first gear.

2nd

Nominal Voltage

The voltage read by the gear position sensor when the transmission is in second gear.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for second gear. If the voltage of the gear selector falls within this distance from the nominal voltage, the selector is considered to be in second gear.

3rd

Nominal Voltage

The voltage read by the gear position sensor when the transmission is in third gear.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for third gear. If the voltage of the gear selector falls within this distance from the nominal voltage, the selector is considered to be in third gear.

4th

Nominal Voltage

The voltage read by the gear position sensor when the transmission is in fourth gear.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for fourth gear. If the voltage of the gear selector falls within this distance from the nominal voltage, the selector is considered to be in fourth gear.

5th

Nominal Voltage

The voltage read by the gear position sensor when the transmission is in fifth gear.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for fifth gear. If the voltage of the gear selector falls within this distance from the nominal voltage, the selector is considered to be in fifth gear.

6th

Nominal Voltage

The voltage read by the gear position sensor when the transmission is in sixth gear.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for sixth gear. If the voltage of the gear selector falls within this distance from the nominal voltage, the selector is considered to be in sixth gear.

Neutral

Nominal Voltage

The voltage read by the gear position sensor when the transmission is in neutral.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for the neutral position. If the voltage of the gear selector falls within this distance from the nominal voltage, the selector is considered to be in neutral.

Reverse

Enable

Enables the reverse position as an option for gear position

Nominal Voltage

The voltage read by the gear position sensor when the transmission is in reverse.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for the reverse position. If the voltage of the gear selector falls within this distance from the nominal voltage, the selector is considered to be in reverse.

Park

Enable

Enables the park position as an option for gear position

Nominal Voltage

The voltage read by the gear position sensor when the transmission is in park.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for the park position. If the voltage of the gear selector falls within this distance from the nominal voltage, the selector is considered to be in park.


RPM Drop Tab

Available when the Gear Detection Type is set to RPM Drop. Gear 1 will always be the gear that this type of detection mode will start from.

Gear Reset RPM

The Engine RPM must fall below this amount to reset the gear position back to Gear 1.

Gear RPM Drop Reset Time

The Engine RPM must fall below the Gear Reset RPM for this amount of time.

First, Second, Third, Fourth Fifth Gear Setpoint

The Engine RPM must be above this amount before the Elite ECU will look for an Engine RPM Drop amount.

First, Second, Third, Fourth Fifth Gear Drop

When the Engine Speed falls by this amount after the Gear Set point has been exceeded, the Gear number will be incremented.

Selector Position Tab

Available when the Selector Position is Enabled and set to Voltage Input.

Park

Enable

Ticking this box will enable the Park position as a selector position, and will allow calibration of the selector.

Nominal Voltage

The voltage read by the selector position when the transmission is in Park.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for Park. If the voltage of the selector falls within this distance from the nominal voltage, the selector is considered to be in Park.

Reverse

Enable

Ticking this box will enable the Reverse position as a selector position, and will allow calibration of the selector.

Nominal Voltage

The voltage read by the selector position when the transmission is in Reverse.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for Reverse. If the voltage of the selector falls within this distance from the nominal voltage, the selector is considered to be in Reverse.

Neutral

Enable

Ticking this box will enable the Neutral position as a selector position, and will allow calibration of the selector.

Nominal Voltage

The voltage read by the selector position when the transmission is in Neutral.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for Neutral. If the voltage of the selector falls within this distance from the nominal voltage, the selector is considered to be in Neutral.

Drive

Enable

Ticking this box will enable the Drive position as a selector position, and will allow calibration of the selector.

Nominal Voltage

The voltage read by the selector position when the transmission is in Drive.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for Drive. If the voltage of the selector falls within this distance from the nominal voltage, the selector is considered to be in Drive.

Sport

Enable

Ticking this box will enable the Sport position as a selector position, and will allow calibration of the selector.

Nominal Voltage

The voltage read by the selector position when the transmission is in Sport.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for Sport. If the voltage of the selector falls within this distance from the nominal voltage, the selector is considered to be in Sport.

Manual

Enable

Ticking this box will enable the Manual position as a selector position, and will allow calibration of the selector.

Nominal Voltage

The voltage read by the selector position when the transmission is in Manual.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for Manual. If the voltage of the selector falls within this distance from the nominal voltage, the selector is considered to be in Manual.

Overdrive

Enable

Ticking this box will enable the Overdrive position as a selector position, and will allow calibration of the selector.

Nominal Voltage

The voltage read by the selector position when the transmission is in Overdrive.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for Overdrive. If the voltage of the selector falls within this distance from the nominal voltage, the selector is considered to be in Overdrive.

Low

Enable

Ticking this box will enable the Low position as a selector position, and will allow calibration of the selector.

Nominal Voltage

The voltage read by the selector position when the transmission is in Low.

Voltage Tolerance

The voltage amount added either side of the nominal voltage for Lowe. If the voltage of the selector falls within this distance from the nominal voltage, the selector is considered to be in Low.


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