A Test Technology of a Vehicle Driveline Test Bench with Electric Drive Dynamometer for Dynamic Emulation

2015 ◽  
Author(s):  
Wenli Li ◽  
Xiao-Hui Shi ◽  
Dong Guo ◽  
Peng Yi
Keyword(s):  
Electric Drive ◽  
Test Bench ◽  
Test Technology ◽  
Dynamic Emulation

scholarly journals An Extended Approach for Validation and Optimization of Position Sensor Signal Processing in Electric Drive Trains

Electronics ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 77 ◽  
Author(s):  
Christoph Datlinger ◽  
Mario Hirz
Keyword(s):  
Data Processing ◽  
Electric Drive ◽  
Reference System ◽  
Test Bench ◽  
Position Angle ◽  
Drive Train ◽  
Position Sensor ◽  
Sensor Systems ◽  
Rotor Position ◽  
Rotor Shaft

Due to the increasing electrification of automotive drive train systems, accurate position and speed sensors play an important role to achieve an optimum drive train performance and driving range. These sensor systems determine the rotor shaft position to deliver exact data for efficient drive train control. The system itself must be reliable, sufficiently accurate and cost efficient at the same time. In this way, the design process of the sensor system is influenced by a trade-off, which influences the system performance in view of different parameters, e.g., resolution and data processing accuracy. The focus of the present work is to introduce a method for benchmarking the performance of not only the rotor shaft position sensor, but the whole electric drive train sensor systems by use of a highly accurate reference system on a specifically developed test bench. To achieve a significant benchmark statement by determination of the rotor position angle error, the independent measuring systems, the automotive drive train system and the reference system are synchronized by the use of a common trigger/clock signal. The mentioned signal defines the time steps of the system under test rotor position angle capturing procedure and those of the reference system simultaneously. This enables a common time-base for two independent working measurement systems. This publication provides information about a concept for enhanced rotor position sensor evaluation that enables the merging of real-time data processing with test bench measurement. This procedure provides an important basis for the selection and optimization of position sensor systems for sophisticated electric powertrains.

scholarly journals Design and Modeling of a Test Bench for Dual-Motor Electric Drive Tracked Vehicles Based on a Dynamic Load Emulation Method

Sensors ◽  
2018 ◽  
Vol 18 (7) ◽  
pp. 1993 ◽  
Author(s):  
Zhe Wang ◽  
Haoliang Lv ◽  
Xiaojun Zhou ◽  
Zhaomeng Chen ◽  
Yong Yang
Keyword(s):  
Electric Drive ◽  
Dynamic Load ◽  
Test Bench ◽  
Tracked Vehicles

scholarly journals Analysis of Passenger Car Turbocharged Diesel Engines Performance When Tested at Altitude and of the Altitude Simulator Device Used

2019 ◽  
Vol 141 (8) ◽  
Author(s):  
Alberto Broatch ◽  
Vicente Bermúdez ◽  
José Ramón Serrano ◽  
Roberto Tabet ◽  
Javier Gómez ◽  
...  
Keyword(s):  
Sea Level ◽  
Test Bench ◽  
Round Robin ◽  
Final Conclusion ◽  
Ambient Conditions ◽  
New Device ◽  
Driving Cycles ◽  
Low Energy Consumption ◽  
Performance And Emissions ◽  
Dynamic Emulation

According to current worldwide trends for homologation vehicles in real driving conditions is forced to test the engines in altitude and in highly dynamic driving cycles in order to approach nowadays and next future emissions standard. Up to now, there were two main options to perform this type of tests: round-robin tests of the whole vehicle or hypobaric chambers, both with high costs and low repeatability. In this paper a new device is described, which can emulate ambient conditions at whatever altitude between sea level and 5000 m high. Even it can be used to emulate ambient conditions at sea level when test bench is placed up to 2000 m high. The main advantages of the altitude simulation equipment are as follows: dynamic emulation of all the psychrometric variables affecting the vehicles during round-robin tests; lower space usage and low-energy consumption. The altitude simulator (AS) has been validated comparing with results from a hypobaric chamber at different altitudes. Previously a research about the dispersion in the measurements of both testing devices has been done for assessing the results of the comparison experiment. Final conclusion resulted in the same operating performance and emissions of the studied engine with both types of testing equipment for altitude simulation.

Energy Saving Electric Drive for the Tractor Tire Test Bench

Vestnik MEI ◽  
2019 ◽  
Vol 2 (2) ◽  
pp. 73-79
Author(s):  
Elena A. Vlasyevnina ◽  
◽  
Oleg I. Osipov ◽  
Keyword(s):  
Energy Saving ◽  
Electric Drive ◽  
Test Bench

scholarly journals Analysis of Passenger Car Turbocharged Diesel Engines Performance When Tested at Altitude and of the Altitude Simulator Device Used

2018 ◽  
Author(s):  
Alberto Broatch ◽  
Vicente Bermúdez ◽  
Jose Ramón Serrano ◽  
Roberto Tabet-Aleixandre ◽  
Javier Gómez ◽  
...  
Keyword(s):  
Sea Level ◽  
Test Bench ◽  
Round Robin ◽  
Final Conclusion ◽  
Ambient Conditions ◽  
New Device ◽  
Driving Cycles ◽  
Low Energy Consumption ◽  
Performance And Emissions ◽  
Dynamic Emulation

According to current worldwide trends for homologation vehicles in real driving conditions, is forced to test the engines in altitude and in highly dynamic driving cycles in order to approach nowadays and next future emissions standard. Up to now, there were two main options to perform this type of tests: round-robin tests of the whole vehicle or hypobaric chambers, both with high costs and low repeatability. In this paper a new device is described, which can emulate ambient conditions at whatever altitude between sea level and 5000m high. Even it can be used to emulate ambient conditions at sea level when test bench is placed up to 2000 m high. The main advantages of the altitude simulation equipment are: dynamic emulation of all the psychrometric variables affecting the vehicles during round-robin tests; lower space usage and low energy consumption. The altitude simulator has been validated comparing with results from a hypobaric chamber at different altitudes. Previously a research about the dispersion in the measurements of both testing devices has been done for assessing the results of the comparison experiment. Final conclusion resulted in the same operating performance and emissions of the studied engine with both types of testing equipments for altitude simulation.

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