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Automation of Mode Driving Operation for Exhaust Gas Measurement

Article of Honda R&D Technical Review Vol.13 No.1


Mode driving is being automated using automatic driving units (robots) with the aim of reducing the number of man-hours needed for the measurement of automobile exhaust gases. Automation using robots offers significant advantages, particularly in high-altitude exhaust gas emissions tests, as it liberates workers from harsh working environments.
This system makes it possible to fully automate all work procedures by constructing automatic cooling fan start/stop systems and automatic hood opening/closing systems, which were issues for full automation with robotic driving under high-altitude conditions. In addition, vehicle speed trace accuracy relative to changes in atmospheric pressure inside the test chamber equivalent to that for driving with a human driver was realized by using separate acceleration parameters for low- and high-altitude conditions and optimizing the control parameters. These changes made it possible to reduce the number of staff and time required for tests and to eliminate tasks in harsh working environments.


(1) I. Inoue, et al.: Development of an Automatic Driving System Using Prediction Control and Applications for Emissions Testing, Ono Sokki Technical Report, No. 12, p. 29–33 (1999)
(2) S. Noguchi, et al.: Automatic Driving System for Chassis Dynamometers, Horiba Technical Report Readout, No. 6, p. 63–66 (1993)
(3) Y. Ogawa: Automatic Driving System for Chassis Dynamometers, Kansai Branch Symposium of the Society of Instrument and Control Engineers, October 1998
(4) T. Wolfgang, et al.: Investigations on Robot Drivers for Vehicle Exhaust Emission Measurements in Comparison to the Driver Strategies of Human Drivers, SAE Paper 982642

Author (organization or company)

Yoshiharu ABE(Tochigi R&D Center)、Yoshihiko KOBAYASHI(PSG Corporation)

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