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Tractive Torque Steer for On-Center Stability1 Handling Augmentation with Controlling Differential Gear for Large-Sized Vehicles - A Comparison with Passive Read-Axle Steer
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English
Abstract
The running direction of a vehicle can be controlled by not only wheel steer but also torque steer. This paper introduces the tractive torque steer effect produced by a newly developed electropneumatic control system, the limited-slip differential for large-sized vehicles. This system enhances the vehicle's running stability and controllability by controlling the tractive force of the drive axle. The tractive force maintains a stable running course against disturbances such as road roughness and wind gusts, thereby enhancing the steering response and providing a better feeling of handling to the driver. The system also improves mobility. especially on low-μ roads. It is expected that a single axle equipped with this system will exhibit good performance comparable to that of tandem axle.
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Citation
Momiyama, F., Hoshikawa, K., Katou, J., and Hosoda, T., "Tractive Torque Steer for On-Center Stability1 Handling Augmentation with Controlling Differential Gear for Large-Sized Vehicles - A Comparison with Passive Read-Axle Steer," SAE Technical Paper 912688, 1991, https://doi.org/10.4271/912688.Also In
Commercial Vehicle Suspensions, Steering Systems, and Traction
Number: SP-0892; Published: 1991-11-01
Number: SP-0892; Published: 1991-11-01
References
- Nakahara M. Momiyama F. Shirai Y. “Control of Steering Effort and Response for Power Steering of Commercial Vehicles SAE paper 852250
- Momiyama F. Kitagishi T. Tokuda N. “Electrohydraulic Feed-Forward Control Power Steering for Trucks and Buses,” SAE paper 892519
- Whitehead, J.C. “Stabilizing the Steering Weave Mode,” SAE paper 881136
- Whitehead, J.C. “Stabilizing Steering Weave with Active Torque Versus Semi-Active Damping,” SAE PAPER 891981