Data acquisition is the process of sampling signals that measure real world physical conditions and converting the resulting samples into digital numeric values that can be manipulated by a computer. Figure 4 test vehicle 3 equipped with metrology for load data acquisition and power measurements figure 5 test vehicle 4 with modified motor control equipped with metrology for power measurements the measurement equipment is accommodated either in a saddlebag, handlebar bag or bike frame bag as depicted. How is road load data acquisition vehicle measurement abbreviated. May 16, 2012 road load data acquisition at magna steyr abstract. Vehicles of category l1ea and cycles designed to pedal of vehicle category l1eb shall be designed and constructed. Data acquisition basics manual labview data acquisition basics manual january 2000 edition part number 320997e01. Rlda and vehicle testing with canfd pdf in rlda and vehicle dynamics, testing engineers want to see time syncd data fusion at the end of their test getting a full picture of what is going on. Roadload is the force imparted on a vehicle while driving at constant speed over a smooth level surface from sources such as tire rolling resistance, driveline losses, and aerodynamic drag. Computeraided acquisition of road load data springerlink.
Electrodynamic shaker systems for vibration testing mb dynamics. Road load is define as the force or torque which opposes the movement of. This efficient and convenient rlda solution is not only about rugged and robust data acquisition equipment with flexible, builtin universal signal conditioning or synchronized road load time, video and vehicle bus data. Signal conditioning box and a 2 channel signal conditioning module for load cells. Temperature is a measure of how cold or hot something is, expressed in several different scales, such as celsius, kelvin or fahrenheit. Five sets of load stabilizing rods were tested on different road test tracks in rr conditions. Road load data acquisition and vehicle testing with can fd in rlda and vehicle dynamics, testing engineers want to see time syncd data fusion at the end of their test getting a full picture of what is going on. This in turn allows for the change in road load and fuel economy to be estimated at any speed, as well as over transient cycles. This efficient and convenient rlda solution is not only about rugged and robust data acquisition equipment. Bsr suite includes predefined test setups for rlda with up to 64 simultaneous measurement channels. Virtual road load data acquisition in practice at general motors 2011010025 measured vehicle loads have traditionally been used as the basis for development of component, subsystem and vehicle level durability tests. Rlda road load data acquisition vehicle measurement. Set the measurement channels, make a measurement and analyse data in our software. To understand whether such data can be useful for selffigure 1.
In the recent data acquisition of transport environment, many data with small data frame such as 1,024 points per frame are obtained and converted to the psd profile by fft method. Road load data acquisition vehicle components engine exhaust systems suspensionsteering systems environmental testing custom enclosures hotcold thermal shock capability salt, mud spray humidity data acquisitionanalysis laboratory measurements using pcbased data acquisition systems. In road load data acquisition rlda and vehicle dynamics, testing engineers want to see time syncd data fusion at the end of their test to get a full picture of what is going on. The default acquisition rates for intertek testing services, north america are 100 hz for nontemperaturebased data and 1 hz for temperaturebased data. Somat mobile data acquisition system mobile daq hbm. It features dualcoreadc analog inputs with 160 db dynamic range and acquisition speeds of 200 khz per channel or optional highspeed amplifiers with speeds up to 1 mhz per channel.
Jan 22, 2015 hbms data acquisition software catmanap also features a seamless integration of gps data. Tfps2000 mounting kits for load cells ftkftpftklftlftz max load 2000 kg laumas duration. Road inventory field data system how is road inventory. Hbms data acquisition software catmanap also features a seamless integration of gps data. Frame torque on chain stay due to electric motor and disc brake 6. Adobe acrobat reader dc software is the free global standard for reliably viewing, printing, and commenting on pdf documents. Road load data acquisition and vehicle testing with can fd in rlda and vehicle dynamics, testing engineers want to see time syncd data. Pdf road load data estimation on multiaxial test rigs. Due to reducing costs and development time virtual development is getting more and more important. The collected data was then processed to generate an actual road load power graph.
Study on the criteria for the determination of the road load. A limitation of the ratio of the added auxiliary propulsion power dependent on the actual pedal power is necessary to provide a safe handling for starting, during cornering or for low speed cruising. Turnkey system the edaq data acquisition system comes complete with the cables and accessories required to immediately start collecting dataright out of the box. The integrated solution for improved vehicle development. Failure assessment of loadstabilizing rod in heavyduty. Mar 15, 2019 amplifiers and summing boxesthe output from a load cell is usually a very low voltage, typically in the region of 20mv or 30mv. Download latest releases of dewesoft x software, dewesoft x addons, firmware and drivers for dewesoft data acquisition devices, technical reference manuals, user guides and brochures. Dyno theory chassis dynamometer and road load equation. Lab for road load data acquisition plugandgo data acquisition efficient hardware, easytouse software dedicated technical support team innovative tools for better brand confidence. And now, its connected to the adobe document cloud.
The measurement and analysis of road vehicle drag forces. Goktan and others published road load data estimation on multiaxial test rigs for exhaust system vibrations find, read and cite all the research you need on. Road load data provides the fundamental information necessary for designreliability analysis of the structural integrity and reliability of vehicle components. Apr 27, 2017 tfps2000 mounting kits for load cells ftkftpftklftlftz max load 2000 kg laumas duration. Data acquisition packages for load cell applications that include one 12 or 16 bit 16 channel board with cable. Using the two basic test methods road load data can be obtained with various. Each multibodysimulation model has to be validated. The data from the engine dynamometer such as engine speed and torque is recorded by using a data acquisition system. Temperature can be measured with thermocouples, rtds or thermistors. The on road fuel economy measurements only supply one lumped result, applicable at the specific test speed, but. Strain gauges are used to measure the maximum stresses and tensile force induced in the ls rod. Virtual road load data acquisition in practice at general motors 2011010025 measured vehicle loads have traditionally been used as the basis for development of component, subsystem and. Figure 4 test vehicle 3 equipped with metrology for load data acquisition and power measurements figure 5 test vehicle 4 with modified motor control equipped with metrology for power measurements.
At this link data acquisition you can find videos running through various feature of the data acquisition tool. An interface was also provided to the vehicle control area network. In this study, service loads in terms of responsetime history signal was obtained from accredited test track using road load data acquisition. Road load ratios of 2 vehicles, both tested as euro 4 and 5 configuration ta 100% comparing the type approval road load curves with the independently determined realistic road load. Road load ratios of 2 vehicles, both tested as euro 4 and 5 configuration ta 100% comparing the type approval road load curves with the independently determined realistic road load curves, the difference is an additional force that only weakly varies across the whole range of vehicle speeds.
Rlda is defined as road load data acquisition vehicle. Virtual road load data acquisition in practice at general. Amplifiers and summing boxesthe output from a load cell is usually a very low voltage, typically in the region of 20mv or 30mv. Load cell data acquisition adm instrument engineering. Rlda is defined as road load data acquisition vehicle measurement somewhat frequently. Road load data acquisition at magna steyr ieee conference. Currently, road load data are measured and provided by the vehicle. In phase 1, a data acquisition system, incorporating sensors, amplification, signal conditioning and data recording was fitted to the vehicle. Added two current sensors alternator current 12v battery current 4.
Power measurement and road load data acquisition march 2015 figure 2 15 annex xix of regulation eu nr. Pdf road load data estimation on multiaxial test rigs for. Road load data acquisition at magna steyr abstract. The somat product family offers the right data acquisition system for every requirement, even under the most difficult conditions. To transfer the survey to mx you need to select export to mx in the right click menu as shown. See our live video from a test drive, using the quantumx data acqu. Depending on the data acquisition system being used, you will. Our advanced daq technologies will shorten time to test dramatically and make sure you get the correct measurements right the first time. A road load data acquisition system from dewesoft is a perfect vehicle durability testing solution for realdrive tests or tests on the road simulator test benches. Vehicle durability testing and road load data dewesoft. By developing technology to scale road data acquisition to a large number of vehicles, this paper introduces a lowcost yet reliable solution, bigroad, that can derive internal driver inputs i. Road load data acquisition vehicle components engine exhaust systems suspensionsteering systems environmental testing custom enclosures hotcold thermal shock capability salt, mud spray humidity data acquisition analysis laboratory measurements using pcbased data acquisition systems.
Road load data acquisition system with saej1939 communications network. Apr 01, 2010 a method for testing road load durability of a truck rear bed includes calculating road pseudo fatigue damage on the rear bed based on road load data indicative of loads imparted on the rear bed while the truck is traveling on a proving road, determining a cyclic input applied to a rear bed assembly mounted on a bench test stand with the rear bed assembly being separated from at least a cab of. Perform a simple measurement with dewesoft x2 software and a sound card and a webcam. Estimation of road load parameters via onroad vehicle testing. Vehicle durability testing and road load data acquisition. Road load data acquisition with catmanap software youtube. Figure 6 shows a schematic of the engine dynamometer. The measured traces form the basis of the vehicle road load curve used subsequently in fuel consumption and. Load cell measurement with usb data acquisition hardware. To do a load cell measurement, you must wire your sensor per the above diagram and then set up your software via the interview process started after selecting sensor type in channel setup dialog or by manually running through the below steps.
Nov 11, 2019 failure analysis is carried out for different rough road rr conditions. Endtoend solution for road load data acquisition general motors using lms scadas and lms test. Road load data acquisition a totally unified approach combines high accuracy measurement, recording, and data analysis in a user friendly modular package. This combines analog sensors, vehicle bus information, position and movement gnss as well as a camera. Electrodynamic shaker systems and amplifiers from mb dynamics help to support a wide range of generalpurpose vibration test requirements. Derivation of psd profiles for random vibration test based.
Bsr suite software running on a laptop pc combined with multichannel data acquisition and signal conditioning is used for rlda when. Aerodynamic drag reduction technologies testing of heavy. Its the only pdf viewer that can open and interact with all types of pdf. Road load data acquisition vehicle components engine exhaust systems suspensionsteering systems environmental testing custom enclosures hotcold thermal shock capability salt, mud. Illustration of bigroad containing a smartphone and an imu sensor. Now you can record data from vehicle sensors while also collecting strain or temperature data at other points on the vehicle. In the end, you can also make a report and export you data to several formats. A method for testing road load durability of a truck rear bed includes calculating road pseudo fatigue damage on the rear bed based on road load data indicative of loads imparted on the. The electrodynamic shaker systems are offered in a variety of force ranges, from 100n 25 lbf to 22kn 5,000 lbf. Road load data acquisition and vehicle testing with can fd.
Rlda stands for road load data acquisition vehicle measurement. The mb bsr suite provides predefined test setups for rdla road load data acquisition and drive files. Failure analysis is carried out for different rough road rr conditions. Aerodynamic drag reduction technologies testing of heavyduty. Lab for road load data acquisition plugandgo data acquisition efficient hardware, easytouse software. Vibration can be considered to be the oscillation or repetitive motion of an object. For the calculation of time, a precision clock within the data acquisition. All three daq systems are designed and qualified for use in harsh environments for mobile on and offroad vehicle testing, as well as for test benches with tough. Electrodynamic shaker systems for vibration testing mb.
Jan, 2017 road load is the force imparted on a vehicle while driving at constant speed over a smooth level surface from sources such as tire rolling resistance, driveline losses, and aerodynamic drag. Depending on the data acquisition system being used, you will typically need a higher voltage level input, the most common voltages being 01v, 02. Dynomax 2010 the ultimate dynamometer control, dataacquisition, and analysis software, puts an advanced dynamometer lab onto your windows pc or laptop. Bsr suite software running on a laptop pc combined with multichannel data acquisition and signal conditioning is used for rlda when combined with accelerometers and possibly microphones. Tno report 2012 r10237 road load determination of passenger cars.
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