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M. Zolot - One of the best experts on this subject based on the ideXlab platform.

  • Battery usage and thermal performance of the Toyota Prius and Honda Insight during Chassis Dynamometer testing
    Seventeenth Annual Battery Conference on Applications and Advances. Proceedings of Conference (Cat. No.02TH8576), 2002
    Co-Authors: K.j. Kelly, M. Mihalic, M. Zolot
    Abstract:

    This study describes the results from the National Renewable Energy Laboratory's (NREL) Chassis Dynamometer testing of a 2000 model year Honda Insight and 2001 model year Toyota Prius. The tests were conducted for the purpose of evaluating the battery thermal performance, assessing the impact of air conditioning on fuel economy and emissions, and providing information for NREL's Advanced Vehicle Simulator (ADVISOR). A comparative study of the battery usage and thermal performance of the battery packs used in these two vehicles during Chassis Dynamometer testing is presented. Specially designed charge and discharge Chassis Dynamometer test cycles revealed that the Insight limited battery usage to 60% of rated capacity, while the Prius limited battery usage to 40% of the rated capacity. The Prius uses substantially more pack energy over a given driving cycle but at the same time maintains the pack within a tight target state of charge (SOC) of 54% to 56%. The Insight does not appear to force the battery to a specific target SOC. The Prius battery contributes a higher percentage of the power needed for propulsion. The study also found that while both vehicles have adequate battery thermal management system for mild driving conditions, the Prius thermal management is more robust, and the Insight thermal management limits pack performance in certain conditions.

  • battery usage and thermal performance of the toyota prius and honda insight for various Chassis Dynamometer test procedures preprint
    Annual Battery Conference on Applications and Advances, 2001
    Co-Authors: K.j. Kelly, M. Mihalic, M. Zolot
    Abstract:

    This study describes the results from the National Renewable Energy Laboratory's (NREL) Chassis Dynamometer testing of a 2000 model year Honda Insight and 2001 model year Toyota Prius. The tests were conducted for the purpose of evaluating the battery thermal performance, assessing the impact of air conditioning on fuel economy and emissions, and providing information for NREL's Advanced Vehicle Simulator (ADVISOR).

  • Battery Usage and Thermal Performance of the Toyota Prius and Honda Insight during Chassis Dynamometer Testing XVII. The Seventeenth Annual Battery Conference on Applications and Advances
    2001
    Co-Authors: Kenneth Kelly, Mark Mihalie, M. Zolot
    Abstract:

    This study describes the results hm the National Renewable Energy Laboratory’s (NREL) Chassis Dynamometer testing of a 2000 model year Honda insight and 2001 model year Toyota Prius. The tests were conducted fbr the purpose of evaluating the battery thd perfixmame, assessing the impact of air conditioniag on fuel em”y and emissions, and providing inf6rmation fix NREL‘s Advanced Vehicle Simulator (ADVISOR). A comparative study of the battery usage and thermal performance of the battery packs used in these two vehicles during Chassis Dynamometer testing is presented Specially designed charge and discharge Chassis Dynamometer test cycles revealed that the Insight limited battery usage to 60% of rated capacity, while the Prius limited battery usage to 40% of the rated capacity. The Prius uses substantially more pack energy over a given driving cycle but at the same time “ins the pack within a tight taxgel state of charge (SOC) of 54% to 56%. The Insight does not appear to foroe . the battery to a specific target SOC. The Prius ham contributes a higher percentage of the power needed for propulsion. The study also found that while both vehicles have adequate battay thermal management systems for mild driving conditions, the prius thermal management is more robust, and the Insight thermal management limits pack performance in certain conditions.

Min Yong-jun - One of the best experts on this subject based on the ideXlab platform.

  • Study on Control System of Simple Transient Chassis Dynamometer
    2006
    Co-Authors: Min Yong-jun
    Abstract:

    The method of electric simulation for automotive inertia represents the development direction of simple transient Chassis Dynamometer.The control system of simple transient Chassis Dynamometer is a complicated system of multi-input multi-output coupling,time-varying nonlinear.Integrating predictive control,fuzzy control and decoupling control,a kind of simple transient Chassis Dynamometer control system is designed and developed.The DMC(dynamic matrix control) with fuzzy self-correcting gain coefficient and feedback predictive compensation decoupling is used in this system.The testing result shows this system obtains a satisfying accelerating simulation result for automotive inertia force.

Cheng Yong - One of the best experts on this subject based on the ideXlab platform.

  • Study on Control System of Simple Transient Chassis Dynamometer
    Internal Combustion Engine & Powerplant, 2009
    Co-Authors: Cheng Yong
    Abstract:

    This paper introduced the development process of simple transient Chassis Dynamometer and analysed the characteristic of eddy current Dynamometer.The control system model was designed,using human-computer composite control strategy.The DMC(dynamic matrix control) with feedback compensation decoupling is used in this system.The results have shown that the control performance is good enough to meet the application requirements.

Margaret Bell - One of the best experts on this subject based on the ideXlab platform.

  • Chassis Dynamometer Evaluation of On-board Exhaust Emission Measurement System Performance in SI Car under Transient Operating Conditions
    SAE Technical Paper Series, 2008
    Co-Authors: Karl Ropkins, James Tate, Gary Hawley, Gordon E. Andrews, Hu Li, Margaret Bell
    Abstract:

    A commercial on-board exhaust emissions measurement system, the Horiba OBS-1300, was evaluated in a series of Chassis Dynamometer test trails. A EURO 1 (petrol) SI passenger car, operated under normal and rich combustion conditions, and a combination of static and transient sampling provided a wide range of measurement conditions for the evaluation exercise. The Chassis Dynamometer facility incorporated an 'industry standard' measurement system comprising MEXA-7400 gas analyzer and CVS bag sampling system which were used as 'benchmarks' for the evaluation of both OBS-1300 component (exhaust flow meter and species analyzer) measurements and 'daughter' emission measurements for regulated gas-phase species (CO, CO2, HC and NOx). Trials demonstrated very good to reasonable agreement for exhaust flow and CO, CO2 and HC concentration measurements during static (R2 ≈ 0.97, 0.99, 0.99 and 0.97, respectively) and transient (R2 ≈ 0.88, 0.96, 0.95 and 0.86, respectively) testing. Transient emission measurements of CO, CO2 and HC were generally consistent with 'parent' exhaust and species analyzer measurements (R2 ≈ 0.89, 0.89 and 0.81, respectively). Minor issues associated with exhaust flow measurement error at engine 'tick-over'/idle and HC measurement agreement under different engine operating conditions are discussed. However, in general, the OBS-1300 provided a reliable measure of CO, CO2 and HC exhaust emissions under all conditions investigated. By contrast, the OBS NOx sensor cross-sensitivity to NH3 hindered the reliability of NOx data, especially under rich engine operation conditions.

  • Chassis Dynamometer Evaluation of On-board Exhaust Emission Measurement System Performance in SI Car under Transient Operating Conditions
    SAE Technical Paper Series, 2008
    Co-Authors: Karl Ropkins, James Tate, Gary Hawley, Gordon E. Andrews, Hu Li, Margaret Bell
    Abstract:

    A commercial on-board exhaust emissions measurement system, the Horiba OBS-1300, was evaluated in a series of Chassis Dynamometer test trails. A EURO 1 (petrol) SI passenger car, operated under normal and rich combustion conditions, and a combination of static and transient sampling provided a wide range of measurement conditions for the evaluation exercise. The Chassis Dynamometer facility incorporated an 'industry standard' measurement system comprising MEXA-7400 gas analyzer and CVS bag sampling system which were used as 'benchmarks' for the evaluation of both OBS-1300 component (exhaust flow meter and species analyzer) measurements and 'daughter' emission measurements for regulated gas-phase species (CO, CO2, HC and NOx). Trials demonstrated very good to reasonable agreement for exhaust flow and CO, CO2 and HC concentration measurements during static (R2 ≈ 0.97, 0.99, 0.99 and 0.97, respectively) and transient (R2 ≈ 0.88, 0.96, 0.95 and 0.86, respectively) testing. Transient emission measurements of CO, CO2 and HC were generally consistent with 'parent' exhaust and species analyzer measurements (R2 ≈ 0.89, 0.89 and 0.81, respectively). Minor issues associated with exhaust flow measurement error at engine 'tick-over'/idle and HC measurement agreement under different engine operating conditions are discussed. However, in general, the OBS-1300 provided a reliable measure of CO, CO2 and HC exhaust emissions under all conditions investigated. By contrast, the OBS NOx sensor cross-sensitivity to NH3 hindered the reliability of NOx data, especially under rich engine operation conditions.

Li Hua-ying - One of the best experts on this subject based on the ideXlab platform.

  • Control algorithm for Chassis Dynamometer based on RBF neural network
    Chinese journal of construction machinery, 2012
    Co-Authors: Li Hua-ying
    Abstract:

    Firstly,types of Chassis Dynamometers,together with the working principles of eddy current Dynamometers,are introduced.Then,the control system model is analyzed based on the radial basis function(RBF) neural network algorithm.By applying the online-setting PID control technology for system controller design,the control effect on system control mode is presented using MATLABTM.Finally,it is verified from testing results that the Chassis Dynamometer can meet the demands on control quality.