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Development of a 4WD System for SUVs

Article of Honda R&D Technical Review Vol.13 No.2

Summary

Surveys of sports utility vehicle (SUV) use in the United States, where they are extremely popular, show that they are mostly driven on streets in urban areas. However, most SUVs are based on a truck chassis, and performance under adverse conditions is regarded as more important than on-road controllability and efficiency. Therefore, this system was created using an FF passenger car chassis with functions integrated in the rear final drive unit, clutch units installed on the axle for the left and right rear wheels, electronically controlled torque control, torque limit control, and so on. The result combines the rough road performance required for an SUV with the controllability of a passenger car, and achieves these goals in a system weighing only 97 kg, making it the lightest in its class.

Reference

(1) Takuno, H., et al.: Development of New Electromagnetic Controlled Coupling for Four-wheel Drive Vehicles, Society of Automotive Engineers of Japan, Inc., PROCEEDINGS No. 75-99, p. 5-8 (1999)
(2) Gotoh, A, et al.: Development of New 4WD System based on FF, Society of Automotive Engineers of Japan, Inc., PROCEEDINGS No. 97-99, p.1-4 (1999)
(3) Chulhee Lee: A Study of NVH Phenomenan in SUV Drivetrain caused by Propeller Shaft, JSAE Spring Convention Proceedings, No. 43 – 00, p. 17 – 20 (2000)

Author (organization or company)

Koji KURODA(Tochigi R&D Center)、Kazuhiro NAKANO(Tochigi R&D Center)、Yoshikazu KONISHI(Tochigi R&D Center)、Takeshi HORI(Tochigi R&D Center)、Kenzo NISHIDA(Tochigi R&D Center)、Kazunori KOBAYASHI(Tochigi R&D Center)

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