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Effect of Tractive Force on Directional Stability and Controllability of Vehicles
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Sector:
Event:
Mid-Year Meeting
Language:
English
Abstract
Theoretical calculation and experiments are made to make clear the transient response of a front wheel drive vehicle to change in tractive force. If the tractive force acting on the front wheel is reduced suddenly from a large stationary value, the turning radius decreases rapidly, and the stability and controllability of the vehicle decreases.
The following means are effective to improve stability and controllability: establish relations ∂C1/∂D1 > 0 and ∂T/∂D1 < 0; make the value of C1 + C2 as large as possible; maintain a relation C1 < C2; and increase rigidities of shafts and links of steering system, where C1, C2, T, and D1 are the cornering coefficient of the front wheel, that of the rear wheel, the aligning torque of the front wheel, and the tractive force at the front wheel, respectively.
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Authors
Citation
Okada, T. and Sagishima, T., "Effect of Tractive Force on Directional Stability and Controllability of Vehicles," SAE Technical Paper 690527, 1969, https://doi.org/10.4271/690527.Also In
References
- Segel, L. “Theoretical Prediction and Experimental Substantiation of the Response of the Automobile to SteeringControl.” Proc. Auto. Div. Instn. Mech. Engrs. 1956–1957 310 330
- Nordeen D. L. Cortese, A. D. “Force and Moment Characteristics of Rolling Tires.” SAE Transactions 72 1964 325 336
- Bergman, W. “Theoretical Prediction of the Effect of Traction on Cornering Force.” SAE Transactions 69 1961 614 640
- Krempel, G. “Untersuchungen an Kraftfahrzeugreifen.” ATZ 69 1967 262 268
- Okada, T. “A Practical Method of Obtaining the Frequency Response from the Transient Response.” Japan. J. Appl. Phys 7 1968 p. 781