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Fuel Consumption Test on 2-Axis Chassis Dynamometer~Effect of Restraint Method on Test Repeatability
Published October 3, 2012 by Society of Automotive Engineers of Japan in Japan
It is essential to conduct a fuel consumption test on the 2-axis chassis dynamometer for simulating the effect of regenerative braking. But, the 2-axis chassis dynamometer has some drawbacks that degrade the repeatability of test results due to unsteady tire mechanical loss on the drum.
We have studied the method to reduce resultant error in fuel consumption test conducted on 2-axis chassis dynamometer for evaluating the effect of component efficiency such as tire efficiency. In this report, we discuss on the method to cancel the influence of alternator control that has top priority on regenerative brake without vehicle ECU information. We show also the method to reduce the influence of lateral force generated on the front wheel.