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In this study, the test results of commercialized 2 ton cargo truck on road for 6 months, are reported using the soot removal equipment at low voltage and with a short regeneration time. The equipment consists of using commercial truck battery, changing electrically neutral soot to negative charged soot. It adsorbs charged soot electrically with the metal mesh connected to positive pole and washes the soot with liquid detergent, during the cutting off of electric source. The removal of the accumulated soot was completed within two minutes, with 100% regeneration.

When a heavy duty truck with 2 rear axles is turning a curve at slow speed, a large side bending force to the chassis frame occurres as vehicle turning radius becomes smaller. In the past, the stress produced by side bending forces was little analyzed. By our research work of FEM, side bending stress of heavy duty truck could be analyzed accurately.