Bosch Motorsport | Lambdatronic LT4 ADV

Lambdatronic LT4 ADV

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

The Lambdatronic LT4 ADV is a control module designed to supply and control up to four BoschLSU ADV. The lambda sensor LSU ADV offers extended features as an improved robustness, a shorter
heating time and less influence from the ambientpressure.
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 tolambda 1.013, independent of the oxygen concentration on the emission side. This happens thanks tothe 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 asthe possibility to control up to 4 Lambda Sensors
LSU ADV with multiple user-configurable parameters.
Application
Application

Lambda 0.75 to 5

Compatible Bosch sensor type

LSU ADVChannels

4HeaterInternal

Sealing

100 % humidity

Mounting

VelcroSize w/o wire (w*l*h)

54 x 59 x 13 mm

Operating temp. range (housing)-20 to 85°C

Storage temp. range-20 to 85°C

Max. vibration

Vibration Profile 1 (see Downloads or www.boschmotorsport.com)

Electrical Data
Power supply US(6.5) 10 to 14 V

Max power supply (1 min) US

Max. 26 V

Thermal dissipation loss

3 W at 14 V

Current Is

5A

Current Is (Heating up)

26 A

Software Tool (free download)
System Configuration tool RaceCon 2.7.0.9 or later
Characteristic
Signal output 1CAN

Signal output 2

4 x 0 to 5 V “analog”

CAN- baud rate

500 kbaud or 1 Mbaud

Signal resolution

2,5 * 10-4 lambda

Signal sampling rate

100 HzCAN refresh rate

100 HzTechnical Specifications

Connectors and Wires

Mechanical Data

Connector

AS614-35PN

Connector loom
AS114-35SN

F02U.000.365-01

Weight with wire

98 g

Bosch Motorsport | Lambdatronic LT4 ADV2|3Sleeve

Viton

34

Heater PWM LSU 4 Uh-4

Wire size

2635

Heater (Batt. +) LSU 4 Uh+4

Wire length L

20 cm

36

Not connected

37

Nernst voltage LSU 4 UN4Pin Assignment
PinFunction

1+ 12 V (Battery +)2+ 12 V (Battery +)3Ground (Battery -)4Ground (Battery -)5

K-Line diagnostic connection

Typical lifetime: max. 220 h / 2 years

6

CAN1 + (high)7

CAN1 - (low)8Analog out 1

For application with severe conditions and/or high volume,
please contact your Bosch Motorsport counterpart in order todefine the most appropriate validation program

9Analog out 2

10Analog out 3

11Analog out 4

12Reference GND for analog out

13Shield

14

Pump current LSU 1 IP1

15Virtual GND LSU 1 VM1To avoid signal errors, a cable length of maximum 1.5 m between
sensor and box is recommended.

16

Heater PWM LSU 1 Uh-1

The unit is secure from miss-pinning.

17

Heater (Batt +) LSU 1 Uh+1

18

Not connected

The reference ground (GND_REF) has to be connected either tothe measuring device or to the system ground.

19Nernst voltage LSU 1 UN120

Pump current LSU 2 IP221

Virtual GND LSU 2 VM222

Heater PWM LSU 2 Uh-2

23

Heater (Batt. +) LSU 2 Uh+224

Not connected

25

Nernst voltage LSU 2 UN226

Pump current LSU 3 IP327

Virtual GND LSU 3 VM328

Heater PWM LSU 3 Uh-3

29

Heater (Batt +) LSU 3 Uh+330

Not connected

31

Nernst voltage LSU 3 UN332

Pump current LSU 4 IP433

Virtual GND LSU 4 VM4Communication
Communication link

K-Line / CAN

Installation Notes

The LT4 ADV is designed to supply 4 Bosch lambda sensors, typeLSU ADV
The LT4 ADV is featured with voltage compensation for the heating profile.
The unit can be connected to any CAN system (500 kbaud or 1Mbaud) and analog measuring device.

A ground offset of 2 V (max.) between GND and GND_REF has not
to be exceeded.
See the LT4 ADV function sheet for software documentation (e.g.
CAN protocol).
Please find further application hints in the offer drawing at ourhomepage.
Legal Restrictions
The sale of this product in Mexico is prohibited.
Due to embargo restrictions, sale of this product inRussia, Belarus, Iran, Syria, and North Korea is prohibited.
Ordering Information
Lambdatronic LT4 ADV
Order number F02U.V01.111-04

Bosch Motorsport | Lambdatronic LT4 ADV

3|3Dimensions

Represented by:
Europe:Bosch Engineering GmbH
Motorsport
Robert-Bosch-Allee 174232 AbstattGermany
Tel.: +49 7062 911 9101
Fax: +49 7062 911 79104
motorsport@bosch.com
www.bosch-motorsport.de

North America:
Bosch Engineering North America
Motorsport
38000 Hills Tech Drive
Farmington Hills, MI 48331-3417
United States of America
Tel.: +1 248 876 2977
Fax: +1 248 876 7373
motorsport@bosch.com
www.bosch-motorsport.com© Bosch Engineering GmbH 2024 | Data subject to change without notice66532747 | en, 1, 19. Jul 2024

Asia-Pacific:
Bosch Engineering Japan K.K.
Motorsports Department
1-9-32 Nakagawa Chuo, Tsuzuki-ku
Yokohama City
Kanagawa Prefecture 224-8601
Japan
Tel.: +81 45 605 3032
Fax: +81 45 605 3059
www.bosch-motorsport.jp

Australia, New Zealand and South
Africa:Robert Bosch Pty. Ltd
Motorsport
1555 Centre Road
Clayton, Victoria, 3168
Australia
Tel.: +61 (3) 9541 3901
motor.sport@au.bosch.com