Electronically Controlled Steering Systems for Line Haul Vehicles 872270
A commercial vehicle power steering system with driver selectable electronically controlled efforts, designated by TRW as the X-4, was designed and tested on Class 8 trucks. The TRW X-4 system is a variable-flow power assist concept. Prototypes of the system proved successful in installations on highway line-haul tractors from several manufacturers. The X-4 system provides increased steering road feel at highway speeds, without a reduction in power assist at low speeds. In addition to enhanced steering and handling performance, test results indicate that the X-4 system significantly reduces the power consumption as compared to the production OEM power steering system.
Citation: Rau, J., Callahan, W., and Miller, L., "Electronically Controlled Steering Systems for Line Haul Vehicles," SAE Technical Paper 872270, 1987, https://doi.org/10.4271/872270. Download Citation
Author(s):
J. L. Rau, W. L. Callahan, L. L. Miller
Affiliated:
TRW Ross Gear Div., Lafayette, IN
Pages: 16
Event:
SAE International Truck and Bus Meeting and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Electronics in Commercial Vehicle Braking and Steering Systems-SP-0753
Related Topics:
Power steering
Steering systems
Commercial vehicles
Energy consumption
Roads and highways
Trucks
Vehicle drivers
Suppliers
Production
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