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Lambdatronic LT4 ADV

Lambdatronic LT4 ADV

The Lambdatronic LT4 ADV is a control module designed to supply and control up to four Bosch LSU ADV. The lambda sensor LSU ADV offers extended features as an improved robustness, a shorter heating time and less influence from the ambient pressure.

The LSU ADV contains a Nernst cell and a pump cell. The lambda value between the Nernst cell and an internal oxygen reference chamber is controlled to lambda 1.013, independent of the oxygen concentration on the emission side. This happens thanks to the pump current throw the pump cell, responsible for the transmission of oxygen atoms in the sensor ceramic. The current proportional output voltage of the IC is translated in a lambda value. The LT4 ADV provides the sensors temperature and other diagnostics parameters over CAN. The 4 lambda signals can be read by using the CAN or analog output.

The main feature and benefit of this unit is its compact design, its lightweight construction, as well as the possibility to control up to 4 Lambda Sensors LSU ADV with multiple user-configurable parameters.

Product Highlights

Features

  • Supply of up to 4 Bosch lambda sensors, type LSU ADV
  • Integrated voltage compensation for sensor heater

Product Details

Application
Lambda 0.75 to 5
Application
Compatible Bosch sensor type
Lambda 0.75 to 5
LSU ADV
Application
Channels
Lambda 0.75 to 5
4
Application
Heater
Lambda 0.75 to 5
Internal
Mechanical Data
Mechanical Data
Weight with wire
98 g
Mechanical Data
Sealing
100 % humidity
Mechanical Data
Mounting
Velcro
Mechanical Data
Size w/o wire (w*l*h)
54 x 59 x 13 mm
Mechanical Data
Operating temp. range (housing)
-20 to 85°C
Mechanical Data
Storage temp. range
-20 to 85°C
Mechanical Data
Max. vibration
Vibration Profile 1
Electrical Data
Electrical Data
Power supply US
(6.5) 10 to 14 V
Electrical Data
Max power supply (1 min) US
Max. 26 V
Electrical Data
Thermal dissipation loss
3 W at 14 V
Electrical Data
Current Is
5 A
Electrical Data
Current Is (Heating up)
26 A
Software Tool (free download)
Software Tool (free download)
System Configuration tool RaceCon 2.7.0.9 or later
Characteristic
Characteristic
Signal output 1
CAN
Characteristic
Signal output 2
4 x 0 to 5 V “analog”
Characteristic
CAN- baud rate
500 kbaud or 1 Mbaud
Characteristic
Signal resolution
2,5 * 10-4 lambda
Characteristic
Signal sampling rate
100 Hz
Characteristic
CAN refresh rate
100 Hz
Connectors and Wires
Connectors and Wires
Connector
AS614-35PN
Connectors and Wires
Connector loom
AS114-35SN
F02U.000.365-01
Connectors and Wires
Sleeve
Viton
Connectors and Wires
Wire size
26
Connectors and Wires
Wire length L
20 cm
Pin Assignment
Pin Assignment
Pin
Function
Pin Assignment
1
+ 12 V (Battery +)
Pin Assignment
2
+ 12 V (Battery +)
Pin Assignment
3
Ground (Battery -)
Pin Assignment
4
Ground (Battery -)
Pin Assignment
5
K-Line diagnostic connection
Pin Assignment
6
CAN1 + (high)
Pin Assignment
7
CAN1 - (low)
Pin Assignment
8
Analog out 1
Pin Assignment
9
Analog out 2
Pin Assignment
10
Analog out 3
Pin Assignment
11
Analog out 4
Pin Assignment
12
Reference GND for analog out
Pin Assignment
13
Shield
Pin Assignment
14
Pump current LSU 1 IP1
Pin Assignment
15
Virtual GND LSU 1 VM1
Pin Assignment
16
Heater PWM LSU 1 Uh-1
Pin Assignment
17
Heater (Batt +) LSU 1 Uh+1
Pin Assignment
18
Not connected
Pin Assignment
19
Nernst voltage LSU 1 UN1
Pin Assignment
20
Pump current LSU 2 IP2
Pin Assignment
21
Virtual GND LSU 2 VM2
Pin Assignment
22
Heater PWM LSU 2 Uh-2
Pin Assignment
23
Heater (Batt. +) LSU 2 Uh+2
Pin Assignment
24
Not connected
Pin Assignment
25
Nernst voltage LSU 2 UN2
Pin Assignment
26
Pump current LSU 3 IP3
Pin Assignment
27
Virtual GND LSU 3 VM3
Pin Assignment
28
Heater PWM LSU 3 Uh-3
Pin Assignment
29
Heater (Batt +) LSU 3 Uh+3
Pin Assignment
30
Not connected
Pin Assignment
31
Nernst voltage LSU 3 UN3
Pin Assignment
32
Pump current LSU 4 IP4
Pin Assignment
33
Virtual GND LSU 4 VM4
Pin Assignment
34
Heater PWM LSU 4 Uh-4
Pin Assignment
35
Heater (Batt. +) LSU 4 Uh+4
Pin Assignment
36
Not connected
Pin Assignment
37
Nernst voltage LSU 4 UN4
.

Further Information

Communication link
K-Line / CAN
Typical lifetime: max. 220 h / 2 years
Typical lifetime: max. 220 h / 2 years
For application with severe conditions and/or high volume, please contact your Bosch Motorsport counterpart in order to define the most appropriate validation program
Typical lifetime: max. 220 h / 2 years
The LT4 ADV is designed to supply 4 Bosch lambda sensors, type LSU ADV
Typical lifetime: max. 220 h / 2 years
The LT4 ADV is featured with voltage compensation for the heating profile.
Typical lifetime: max. 220 h / 2 years
The unit can be connected to any CAN system (500 kbaud or 1 Mbaud) and analog measuring device.
Typical lifetime: max. 220 h / 2 years
To avoid signal errors, a cable length of maximum 1.5 m between sensor and box is recommended.
Typical lifetime: max. 220 h / 2 years
The unit is secure from miss-pinning.
Typical lifetime: max. 220 h / 2 years
The reference ground (GND_REF) has to be connected either to the measuring device or to the system ground.
Typical lifetime: max. 220 h / 2 years
A ground offset of 2 V (max.) between GND and GND_REF has not to be exceeded.
Typical lifetime: max. 220 h / 2 years
See the LT4 ADV function sheet for software documentation (e.g. CAN protocol).
Typical lifetime: max. 220 h / 2 years
Please find further application hints in the offer drawing at our homepage.

Lambdatronic LT4 ADV
Order number: F02U.V01.111-04

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