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1、 Instruction Manual MSW Sensors Measurement Steering Wheels Type CMSWA CMSWA_002-610e-10.12 Foreword CMSWA_002-610e-10.12 Page 1 Foreword Thank you for choosing a Kistler quality product characterized by technical innovation,precision and long life.Information in this document is subject to change w
2、ithout notice.Kistler reserves the right to change or improve its products and make changes in the content without obligation to notify any person or organization of such changes or improvements.2012 Kistler Group.All rights reserved.Except as expressly provided herein,no part of this manual may be
3、reproduced for any purpose without the express prior written consent of Kistler Group.Kistler Group Eulachstrasse 22 8408 Winterthur Switzerland Tel.+41 52 224 11 11 Fax+41 52 224 14 14 Kistler Automotive GmbH Competence Center Wetzlar Charlotte-Bamberg-Str.12 35578 Wetzlar Germany Tel.+49 6441 9282
4、 0 Fax+49 6441 9282 17 Measurement Steering Wheels Type CMSWA Page 2 CMSWA_002-610e-10.12 Content 1.Introduction.4 2.Important Notes.5 2.1 For your Safety.5 2.2 Disposal Instructions for Electrical and Electronic Equipment.6 2.3 Software Upgrades and Updates.6 3.Product Overview.7 3.1 General.7 3.2
5、Functional Principle.8 3.2.1 Steering Torque Acquisition.8 3.2.2 Steering Angle Acquisition.8 3.2.3 Steering Speed.8 3.3 Features.9 3.4 Application.9 3.5 Accessories.9 4.Technical Data.10 4.1 MSW Sensor.10 4.2 MSW Processor.12 4.3 Pin Assignments.13 5.Set-up and Connection.16 5.1 Pre-Installation Sa
6、fety Instructions.16 5.2 Application Instructions Adapters for Steering Shaft&Steering Wheel.16 5.3 Sensor Sketch.17 5.4 Mounting the Sensor.18 5.4.1 Sensor with Standard Steering Wheel and Standard Steering Shaft Adapter.18 5.4.2 MSW Sensor with Special Versions of the Steering Wheel or Steering Sh
7、aft Adapters.18 5.5 Connecting the Sensor.19 5.5.1 For Configuration.19 5.5.2 For Measurement.20 5.6 Startup.20 5.6.1 Resetting the Torque Outputs.20 5.6.2 Resetting the Steering Angle Outputs.21 6.Sensor-specific Software Description.22 6.1 Project Window Settings MSW Sensor.22 6.1.1 Measurement Di
8、splay.22 6.1.2 Sensor Configuration.23 6.1.3 Digital Channels.24 6.1.4 Analog Channels.25 6.1.5 Filter.26 6.1.6 CAN-Bus.27 6.2 Sensor Calibration.29 6.2.1 Calibration Instructions.29 6.2.2 Shunt Calibration.29 Content CMSWA_002-610e-10.12 Page 3 6.3 CAN Protocol.30 6.3.1 Definition of the Frames.31
9、6.3.1.1 Definition for Intel Format.31 6.3.1.2 Definitions for Motorola Format.32 6.3.1.3 Table 1:Sensor status.33 6.3.1.4 Trigger Frame:.33 6.4 Generating CAN Database files(CanDB).34 6.5 Firmware Update.35 6.6 Executing the Firmware Update.35 6.6.1 Problems during the Firmware Update.37 7.Troubles
10、hooting.39 7.1 Cables and Power Supply.39 7.2 Software.39 7.3 EMV Interference.39 7.4 MSW Processor Displays the Steering Angle with too low Resolution.39 7.5 CAN.40 7.6 Service.40 8.Appendix.41 Total pages:43 Measurement Steering Wheels Type CMSWA Page 4 CMSWA_002-610e-10.12 1.Introduction Please t
11、ake the time to thoroughly read this instruction manual.It will help you with the installation,maintenance,and use of this product.To the extent permitted by law Kistler does not accept any liability if this instruction manual is not followed or products other than those listed under Accessories are
12、 used.Kistler offers a wide range of products for use in measuring technology:?Piezoelectric sensors for measuring force,torque,strain,pressure,acceleration,shock,vibration and acoustic-emission?Strain gage sensor systems for measuring force and torque?Piezoresistive pressure sensors and transmitter
13、s?Signal conditioners,indicators and calibrators?Electronic control and monitoring systems as well as software for specific measurement applications?Data transmission modules(telemetry)Kistler also develops and produces measuring solutions for the application fields of engines,vehicles,manufacturing
14、,plastics and biomechanics sectors.Our product and application brochures will provide you with an overview of our product range.Detailed data sheets are available for almost all products.If you need additional help beyond what can be found either on-line or in this manual,please contact Kistlers ext
15、ensive support organization.Important Notes CMSWA_002-610e-10.12 Page 5 2.Important Notes 2.1 For your Safety Please read carefully before operating the equipment.Kistler is not responsible for damage that may occur when this system is used in any way other than that for which it is intended.To assu
16、re safe and proper operation,all supplied equipment,components and/or accessories must be carefully transported and stored,as well as professionally installed and operated.Careful maintenance and usage in full accordance with operating instructions is imperative.The equipment should be installed and
17、 operated only by qualified persons who are familiar with devices of this type.Local regulations may not permit the operation of motor vehicles on public highways while the equipment is mounted on the exterior of the vehicle.Working with an airbag-equipped wheel requires utmost caution due to high r
18、isk of injury.It is imperative to observe all instructions of the wheel manufacturer.When installing a MSW sensor the national type approval of the vehicle is terminated as long the sensor is installed.Do not use defective or damaged equipment.Do not modify or change the equipment or its accessories
19、 in any way.Improper use or mounting of the equipment may affect the safety of the vehicle and/or occupants.The equipment must not be mounted and/or operated in any way that may compromise vehicle or and/or occupant safety.Be sure to install and secure the sensor and the cables in a way that does no
20、t impair the vehicles steering.Measurement Steering Wheels Type CMSWA Page 6 CMSWA_002-610e-10.12 Use only original equipment,components and/or accessories included in the scope of delivery.Always note correct pin assignments and operating voltages when connecting equipment,otherwise it may be damag
21、ed if not properly connected and/or ope-rated.We recommend using only the cables included in the scope of delivery.If you think it is necessary to use own cables,please take special care of the correct pin assignment.Kistler assumes no liability for damages caused due to the use of cables other than
22、 delivered by Kistler.Disconnect power from the sensor if the vehicle is stationary or extended periods.For additional information,please call our Hotline:+49 6441 9282 82 or mail to 2.2 Disposal Instructions for Electrical and Electronic Equipment Do not discard old electronic instruments in munici
23、pal trash.For disposal at end of life,please return this product to an authorized local electronic waste disposal service or contact the nearest Kistler Instrument sales office for return instructions.2.3 Software Upgrades and Updates Kistler may from time to time supply upgrades or updates for embe
24、dded software.Such upgrades or updates must always be installed.Kistler declines any liability whatsoever for any direct or consequential damage caused by products running on embedded software which has not been upgraded or updated with the latest software supplied.Product Overview CMSWA_002-610e-10
25、.12 Page 7 3.Product Overview 3.1 General MSW sensors are measuring steering wheels designed especially for use with passenger cars and utility vehicles.MSW sensors mount between the steering wheel and the steering shaft.A central aperture makes mounting easy and also allows to feed cables,eg.for ai
26、rbag or multi-function steering wheel,through it.To permit universal application,the sensors are equipped with an exchange-able connection to the steering shaft gearing.For optimum safety,MSW sensors have a high breaking moment.As an additional safety measure,four driving pins ensure steering in the
27、 event of breakage.Electronics are incorporated into the sensor.Power supply and signal output is provided via a 15 pin D-Sub plug.Kistler MSW sensors have a TTL/BOX selector switch,which enables operation with or without the MSW processor.Fig.1:MSW sensor with steering wheel,front and back view Mea
28、surement Steering Wheels Type CMSWA Page 8 CMSWA_002-610e-10.12 3.2 Functional Principle 3.2.1 Steering Torque Acquisition Torque values are acquired using a specially designed measuring body equipped with strain gauges.Friction and clearance of the integrated ball bearings do not influence the accu
29、racy of the sensor.Torque applied to the steering wheel is transferred directly through the measuring body and into the steering shaft.Bearing friction may have a minor influence on the subjective judgment of the test driver.The torque signal is transmitted from the rotor to the stator via a short-d
30、istance telemetry system,which operates on the basis of frequency coding.Power supply of the DMS application is inductively coupled via the telemetry antennas.No internal battery required.An external zero-point balance for output signals M1 and M2 may be adjusted via two potentiometers.3.2.2 Steerin
31、g Angle Acquisition Two TTL signals,phase-shifted 90,are generated by an incremental drum(which produces 900 pulses per rotation)and a non-contact,optical sensor.An electronic,four-flank evaluation of the TTL signals produces 3 600 pulses per rotation.The summing of the pulses generates the analog o
32、utput signal.The phase-shifted pulse sequence enables the identification of the direction of rotation.An adjustable caliper on the MSW sensor allows the steering-angle signal to be set to 0 with the steering wheel in any position desired.The measuring steering wheel is capable of spinning without re
33、striction.3.2.3 Steering Speed Steering speed must be calculated externally by differentiating the angle signal.The two 90 phase-shifted TTL signals(900 pulses per rotation)are output via the Lemosa connector.Product Overview CMSWA_002-610e-10.12 Page 9 3.3 Features?Non-contact optical steering angl
34、e sensor with incorporated electronics?50 Nm version for passenger cars,250 Nm version for utility vehicles?Resolution up to 7 200 pulses/rotation(with MSW Processor)?Low fitting depth?100%overload protection on nominal range?Low mass moment of inertia 3.4 Application Universal measurement steering
35、wheel for non-contact measurement of steering moment,angle and speed;for vehicle driving dynamics testing like ISO 4148,steady-state circular course drive.3.5 Accessories Included Accessories Type/Art.No.?Signal and power cable,l=3 m KCD16905?Multimedia CD incl.software&manuals KCD11343?Sensor calib
36、ration for MSW sensors KCD11434?Transport case,complete KCD17214 Additional for MSWA1?Steering wheel 360 mm KCD11042 Additional for MSWA2?Steering wheel 390 mm KCD15391 Optional Accessories Type/Art.No.?Steering wheel 450 mm KCD17184?MSW processor KCD14075?Signal and power cable,l=1,5 m KCD17720?Cus
37、tom adapter for steering shaft KCD11439?Adaptation of customer-supplied KCD15767 steering wheel(passenger car)?Adaptation of customer-supplied KCD15947 steering wheel(utility vehicle)?Adapter passenger car 280.420 mm KCD16188?Adapter utility vehicle 400.560 mm KCD16458?1-point suction holder for mou
38、nting KCD15747 at the windshield Transport cases for custom adaptations on request.Measurement Steering Wheels Type CMSWA Page 10 CMSWA_002-610e-10.12 4.Technical Data 4.1 MSW Sensor Performance Specifications Power supply V 10 28 Power consumption at 12 V W 5 Temperature range Nominal temperature C
39、 0 70 Operating temperature(compensated)C 20 80 Mass moment of inertia(without steering wheel)kgcm2 60 Weight(without steering wheel)Sensor,passenger car version 1)kg 2,55 Sensor,utility vehicle version 1)kg 3,60 Steering Moment(when operated without processor)Steering moment passenger car version 2
40、)Range output M1,1 V=5 Nm Nm 50 Range output M2,1 V=1 Nm Nm 10 Steering moment utility vehicle version 2)Range output M1,1 V=25 Nm Nm 250 Range output M2,1 V=5 Nm Nm 50 Linearity deviation Of measurement range M1%0,5 Including hysteresis(typical)%0,2 Low pass filter(standard)Hz 100 Nominal index Nom
41、inal signal interval between torque=0 and measuring range final value M1 or M2 V 10 Index tolerance for M1%0,15 Zero point balance Via potentiometer with load-free steering wheel,separate for M1 and M2 up to about mV 100 mV 100 Technical Data CMSWA_002-610e-10.12 Page 11 Steering moment(continued)Te
42、mperature influence on the zero signal(in the nominal temperature range)M1 relative to the nominal index M1%0,8 M2 relative to the nominal index M2%4,0 Overload protection On measuring range final value%100 Braking moment Passenger car version Nm 250 Utility car version Nm 600 Steering angle Steerin
43、g angle 2)Output L1 1 V=125 1 250 Output L2 1 V=20 200 Angle resolution 0,1 Nominal index Nominal signal interval between angle=0 and measuring range final value L1 or L2 V 10 Index tolerance for L1%0,1 Zero-point balance With caliper at the steering wheel,possible at any steering wheel position yes
44、 Temperature influence in the nominal temperature range to the zero signal L1 relative to the nominal index L1%0,3 L2 relative to the nominal index L2%Create CanDB.Fig.12:Screen view generating CanDB,1 After selecting this menu item,you will be prompted to choose a location for storing the CAN datab
45、ase file.Fig.13:Screen view generating CanDB 2 Please select a suitable location and file name,and store the file by clicking the Save button.Sensor-specific Software Description CMSWA_002-610e-10.12 Page 35 6.5 Firmware Update Due to the continuous development of our sensors,an update of the sensor
46、 firmware could be necessary.This chapter describes how to perform this using CeCalWin Pro.This function is available from CeCalWin Pro Version 1.9 onwards.Before you start the firmware update,please be sure that the data connection(USB or RS-232C)between the computer and the sensor as well as the p
47、ower supply of the computer and sensor are correct.An interruption of sensor communication/power supply or a computer crash during the firmware update can result in an irreparable destruction of the sensor pro-gramming.6.6 Executing the Firmware Update Step 1:Start the firmware update function To st
48、art the firmware update,select from the menu Options Loading new Firmware.Fig.14:Screen view firmware update,step 1a Measurement Steering Wheels Type CMSWA Page 36 CMSWA_002-610e-10.12 Now,a message appears,prompting you to check data connection PC/Sensor and power supply.Fig.15:Screen view firmware
49、 update,step 1b Please make sure that both,data connections and power supply,are correct and then confirm this message by clicking OK.Step 2:Selection of firmware file Next,you will be prompted to select the firmware file,which you want to write into the sensor.For this purpose,please browse to the
50、location on your hard disk,where the desired file is stored.Clicking on Open will confirm the firmware file and starts loading the new firmware.Fig.16:Screen view firmware updates,step 2 From this moment on,the firmware update must not be interrupted!Sensor-specific Software Description CMSWA_002-61