Bosch Motorsport | Steering Wheel Angle Sensor LWS

Steering Wheel Angle Sensor LWS

 Steering Wheel Angle: ± 780°
 Angular Speed: 0 to 1,016°/s
 500 kbaud CAN-output

This sensor is designed to measure rotational movement and angular speed, e.g. steering wheel angle
and steering wheel speed.
In order to achieve this, the sensor is using the giant
magneto resistive (GMR) effect. The detection of theabsolute angle is realized by means of toothedmeasuring gears with different ratio including small
magnets. Corresponding GMR elements that change
their electrical resistance according to the magnetic
field direction detects the angle position of themeasuring gears.
The measured voltages are A/D converted and a microcontroller performs the angle calculations. Thesteering angle and the steering angle speed areprovided on a CAN-interface.

Application

CAN Message
CAN ID 01 0x2B0 LWS_Standard
Byte

Value / Bit
7/6/5/4/3

210TRIM

CAL

OK

7/6/5/4/3

2

100

Reserved

CCW

1

Reserved0

LWS_ANGLE1

LWS_ANGLE2

LWS_SPEED3

Reserved

4

Reserved

CAN ID 02 0x7C0 LWS_Config
Byte

Value / Bit

Steering wheel angle± 780°

Truth Table

Angular speed

0 to 1,016°/s

TRIMOKCALANGLESPEED

Sensor state

Operating temperature range-40 to 85°C

111

Value

Value

Sensor is calibrated and sensor in-Technical Specifications

formation is valid.

1

107FFFh

Value

Sensor is not calibrated, speed information is valid.

Mechanical Data

1Weight

Approx. 34 g

Size

83 x 60 x 21.35 mm

Protection class

IP5K0

Electrical Data
Power supply

7 to 16 VMax input current< 150 mA

CAN speed

500 kbaud

007FFFhFFhSensor is in failure mode, sensor information is not valid.

0007FFFh

FFHSensor is in failure mode, sensor information is not valid.

Other combinations for TRIM, OK and CAL are notvalid.
Signal Overview
OKFailure status

1Sensor information valid

Bosch Motorsport | Steering Wheel Angle Sensor LWS

2|3

OKFailure status

Pin 6

Not connected

0Sensor information invalid, an internal sensor fault occurred

Pin 7

Not connected

CAN Parameters

CALCalibration status

Byte order

LSB (Intel)

1Sensor calibrated

CAN speed

500 kbaud0Sensor not calibrated

CAN update rate

100 Hz / 10 ms

TRIM

Trimming Status

Installation Notes

1Sensor trimmed

0Sensor not trimmed, this is handled as a sensor failure(OK = 0)CCW

Command code word

3hSets the signal LWS_Angle to 0°

Please ensure that the environmental conditions do not exceed
the sensor specifications.

5hResets the calibration status of the angle

Please find further application hints in the offer drawing.

The LWS can be connected directly to most control units and datalogger systems via CAN bus.
Please avoid abrupt temperature changes.

Characteristics
Measuring range± 780°

Absolute physical resolution

0.1°

A zero adjustment is needed before using the sensor for the firsttime. To do so, reset the calibration with CCW = 5h. After resetting the calibration, a new calibration needs to be started with
CCW = 3h. The sensor is now newly calibrated and can be used
immediately.

Nonlinearity± 2.5°

Zero the sensor after every assembly.

Hysteresis

0 to 5°Steering Wheel Angle

Angular Speed
Measuring range

0 to 1,016°/s

Over range limit± 2,500°/sAbsolute physical resolution

4°/s

Safety NoteThe sensor is not intended to be used for safety related applications without appropriate measures for signal validation in the application system.
Legal Restrictions

Connectors and WiresConnector

Bosch 7 pole

Mating connector

F02U.B00.656-01

Pin 1

Gnd

Pin 2

12 V

Pin 3

CAN High

Pin 4

CAN Low

Pin 5

Not connected

Due to embargo restrictions, sale of this product inRussia, Belarus, Iran, Syria, and North Korea is prohibited.
Ordering Information
Steering Wheel Angle Sensor LWS
Order number F02U.V02.894-01Bosch Motorsport | Steering Wheel Angle Sensor LWS

3|3

Dimensions

Housing Size

Represented by:
Europe:Bosch Engineering GmbHMotorsport
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 notice54425995 | en, , 19. Jul 2024

Asia-Pacific:
Bosch Engineering Japan K.K.
Motorsports Department
1-9-32 Nakagawa Chuo, Tsuzuki-ku
Yokohama CityKanagawa 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