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.
- Downloads
- Features
- Application
- Technical Specifications
- Communication
- Installation Notes
- Ordering Information
- Dimensions
- Legal Restrictions
Downloads
Features
- Supply of up to 4 Bosch lambda sensors, type LSU ADV
- Integrated voltage compensation for sensor heater
Application
Application | Lambda 0.75 to 5 |
Compatible Bosch sensor type | LSU ADV |
Channels | 4 |
Heater | Internal |
Technical Specifications
Mechanical Data
Weight with wire | 98 g |
Sealing | 100 % humidity |
Mounting | Velcro |
Size 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.bosch-motorsport.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 | 5 A |
Current Is (Heating up) | 26 A |
Software Tool (free download)
System Configuration tool RaceCon 2.7.0.9 or later |
Characteristic
Signal output 1 | CAN |
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 Hz |
CAN refresh rate | 100 Hz |
Connectors and Wires
Connector | AS614-35PN |
Connector loom | F02U.000.365-01 |
Sleeve | Viton |
Wire size | 26 |
Wire length L | 20 cm |
Pin Assignment
Pin | Function |
1 | + 12 V (Battery +) |
2 | + 12 V (Battery +) |
3 | Ground (Battery -) |
4 | Ground (Battery -) |
5 | K-Line diagnostic connection |
6 | CAN1 + (high) |
7 | CAN1 - (low) |
8 | Analog out 1 |
9 | Analog out 2 |
10 | Analog out 3 |
11 | Analog out 4 |
12 | Reference GND for analog out |
13 | Shield |
14 | Pump current LSU 1 IP1 |
15 | Virtual GND LSU 1 VM1 |
16 | Heater PWM LSU 1 Uh-1 |
17 | Heater (Batt +) LSU 1 Uh+1 |
18 | Not connected |
19 | Nernst voltage LSU 1 UN1 |
20 | Pump current LSU 2 IP2 |
21 | Virtual GND LSU 2 VM2 |
22 | Heater PWM LSU 2 Uh-2 |
23 | Heater (Batt. +) LSU 2 Uh+2 |
24 | Not connected |
25 | Nernst voltage LSU 2 UN2 |
26 | Pump current LSU 3 IP3 |
27 | Virtual GND LSU 3 VM3 |
28 | Heater PWM LSU 3 Uh-3 |
29 | Heater (Batt +) LSU 3 Uh+3 |
30 | Not connected |
31 | Nernst voltage LSU 3 UN3 |
32 | Pump current LSU 4 IP4 |
33 | Virtual GND LSU 4 VM4 |
34 | Heater PWM LSU 4 Uh-4 |
35 | Heater (Batt. +) LSU 4 Uh+4 |
36 | Not connected |
37 | Nernst voltage LSU 4 UN4 |
Communication
Communication link | K-Line / CAN |
Installation Notes
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 |
The LT4 ADV is designed to supply 4 Bosch lambda sensors, type LSU 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 1 Mbaud) and analog measuring device. |
To avoid signal errors, a cable length of maximum 1.5 m between sensor and box is recommended. |
The unit is secure from miss-pinning. |
The reference ground (GND_REF) has to be connected either to the measuring device or to the system ground. |
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 our homepage. |
Ordering Information
Lambdatronic LT4 ADV
Order number: F02U.V01.111-04
Dimensions
Legal Restrictions
The sale of this product in Mexico is prohibited.
Due to embargo restrictions, sale of this product in Russia, Belarus, Iran, Syria, and North Korea is prohibited.