AEM AQ1 – Installing and Setting Up the AQ1 Data Logger

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Connector Pin #

AQ1 Connection

Connector Pin #

AQ1 Connection

1

Analog Signal 1

(AQ1 Pin 8)

19

Digital Signal 2

(AQ1 Pin3)

2

Analog Signal 2 

(AQ1 Pin 9)

20

Digital Signal 3

(AQ1 Pin 4)

3

Analog Signal 3

(AQ1 Pin 10 )

21

Not Connected

4

Analog Signal 4

(AQ1 Pin 11)

22

AQ1 to Battery Ground

(From Sensor Harness, AQ1 Pin 19)

5

Sensor +5V from AQ1

(AQ1 Pin 20)

23

Not Connected

6

Sensor +5V from AQ1

(AQ1 Pin 20)

24

Not Connected

7

Sensor +5V from AQ1

(AQ1 Pin 20)

25

Sensor Ground from AQ1

(AQ1 Pin 7)

8

Sensor +5V from AQ1

(AQ1 Pin 20)

26

Sensor Ground from AQ1

(AQ1 Pin 7)

9

Not Connected

27

Sensor Ground from AQ1

(AQ1 Pin 7)

10

Sensor Ground from AQ1

(AQ1 Pin 7)

28

Sensor Ground from AQ1

(AQ1 Pin 7)

11

Sensor Ground from AQ1

(AQ1 Pin 7)

29

Not Connected

12

Sensor Ground from AQ1

(AQ1 Pin 7)

30

Sensor +5V from AQ1

(AQ1 Pin 20)

13

Sensor Ground from AQ1

(AQ1 Pin 7)

31

Sensor +5V from AQ1

(AQ1 Pin 20)

14

Not Connected

32

Sensor +5V from AQ1

(AQ1 Pin 20)

15

Not Connected

33

Sensor +5V from AQ1

(AQ1 Pin 20)

16

Switched +12V to AQ1

(From Sensor Harness, AQ1 Pin 1)

34

Analog Sensor 8

(AQ1 Pin 15)

17

Permanent +12V to AQ1

(From Sensor Harness, AQ1 Pin 6)

35

Analog Sensor 7

(AQ1 Pin 14)

18

Digital Signal 1

(AQ1 Pin 2)

36

Analog Sensor 6

(AQ1 Pin 13)

 

 

37

Analog Sensor 5

(AQ1 Pin 12)

Table 3.1: AQ1 to CPC Connector Pin Out Table

 

From the beginning, we knew that we wanted to study the suspension and aerodynamic characteristics of the car in order to better tune and develop the car’s handling capabilities. At the same time, we were also interested in studying some engine data, most specifically engine oil pressure and differential temperature. Tables 3.2 and 3.3 below show what we wanted to log for suspension, aerodynamics, and engine data.

 

Channel #

Sensor Type

Purpose

Analog 1

Ride Height Sensor

Shows us how ride height changes at different speeds. We use this data to calculate changes in downforce on the car, as well as affects of spring rate and damping adjustments on the car.

Analog 2

Ride Height Sensor

Analog 3

Ride Height Sensor

Analog 4

Ride Height Sensor

Analog 5

Pitot Tube

Used to see how headwinds and tailwinds affect drag and downforce of the car.

Analog 6

Pressure Sensor

Set up for a pressure sensor.

Analog 7

Pressure Sensor

Set up for a pressure sensor.

Analog 8

Open

Most likely another pressure sensor.

Serial/GPS

GPS Receiver

Allows us to create track maps as well as log vehicle acceleration and velocity on the track.

 
Table 3.2: Sensors for suspension and aero analysis

 

 

Channel #

Sensor Type

Purpose

Analog 1

Boost Gauge

Powertrain Development

Analog 2

Oil Temp. Gauge

Powertrain Development

Analog 3

Oil Pressure Gauge

Powertrain Development

Analog 4

Differential Controller (planned)

Powertrain Development

Analog 5

Water Temp Gauge

Powertrain Development

Analog 6

Fuel Pressure Gauge

Powertrain Development

Analog 7

Trans. Temp Gauge

Powertrain Development

Analog 8

Open

Open

Serial/GPS

GPS Receiver

Allows us to create Track maps to correlated the data to track position

 
Table 3.2: Sensors for powertrain analysis

 

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