Road-holding (original) (raw)
La tenue de route est une expression mal définie décrivant le comportement routier des véhicules (automobiles ou motocyclettes essentiellement).
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| dbo:abstract | La tenue de route est une expression mal définie décrivant le comportement routier des véhicules (automobiles ou motocyclettes essentiellement). (fr) Road-holding – also written as roadholding and road holding – (in French being called "tenue de route", in German "Beibehaltung der Spur"), is essentially determined by the ability of a vehicle to stay on the road and on a desired trajectory of motion, whatever the circumstances (in curves, on greasy, wet or low-grip ground, loaded or not, etc.) may be, but also by the degree of ease that a driver may sense in controlling it in an emergency situation. (Hereby, the laws of nature as a framework, including the gravitational field of the planet Earth as well as the phenomenon of inertia, are tacitly assumed as given.) In the above context, the straight-line stability of a vehicle – which is concomitant with its ability to stay on a desired trajectory of motion – necessitates a certain degree of understeering. The capability to smooth down the road imperfections, affects both the comfort and the road-holding of a vehicle. To improve comfort in this regard means, basically, to limit the vertical acceleration fluctuations of the vehicle body and hence of passengers. To improve road-holding means, among other things, to limit the fluctuations of the that each tire exchanges with the road. Therefore, modeling and simulation using realistic suspension-damping models, taking the vehicle tires into account, offer a straightforward opportunity for road-holding improvement of vehicles. Optimization techniques for this purpose are also known. The application of inerters is a very new possibility in this regard, although this technology is more destined to race cars than to ordinary vehicle applications. As a more sophisticated means for improving road-holding, active suspension – involving sensors, actuators and microcontrollers – may also serve. For vehicle speeds above approximately 40 meters per second, the effects of aerodynamic forces at an automobile (that is not designed in a too odd manner) tend to become sensible for its road-holding. Beyond what has been previously mentioned, electronic stability control, if being present on a vehicle and properly tuned, will have a stabilizing influence on the trajectory of motion and accordingly an improving effect on road-holding of that vehicle. (en) |
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| dbo:wikiPageLength | 4015 (xsd:nonNegativeInteger) |
| dbo:wikiPageRevisionID | 1123006917 (xsd:integer) |
| dbo:wikiPageWikiLink | dbr:Scientific_law dbr:Electronic_stability_control dbr:Motion dbr:Race_car dbr:Inerter_(mechanical_networks) dbr:Inertia dbr:Gravitation dbr:Gravitational_field dbr:Conceptual_model dbr:Cornering_force dbr:Damping dbr:Comfort dbr:Emergency dbr:Suspension_(mechanics) dbr:Technology dbr:Automobile dbr:Automobile_handling dbr:Active_suspension dbr:Actuator dbr:Driving dbr:Acceleration dbr:Earth dbr:Microcontroller dbr:Road dbr:Grip_(auto_racing) dbr:Aerodynamic_force dbr:Tire dbr:Traction_(engineering) dbr:Trajectory dbr:Directional_stability dbc:Vehicle_dynamics dbr:Sensor dbr:Simulation dbr:Vehicle dbr:Road_surface dbr:Understeering dbr:Wikt:fluctuation dbr:Vertical_force |
| dcterms:subject | dbc:Vehicle_dynamics |
| rdfs:comment | La tenue de route est une expression mal définie décrivant le comportement routier des véhicules (automobiles ou motocyclettes essentiellement). (fr) Road-holding – also written as roadholding and road holding – (in French being called "tenue de route", in German "Beibehaltung der Spur"), is essentially determined by the ability of a vehicle to stay on the road and on a desired trajectory of motion, whatever the circumstances (in curves, on greasy, wet or low-grip ground, loaded or not, etc.) may be, but also by the degree of ease that a driver may sense in controlling it in an emergency situation. (Hereby, the laws of nature as a framework, including the gravitational field of the planet Earth as well as the phenomenon of inertia, are tacitly assumed as given.) (en) |
| rdfs:label | Tenue de route (fr) Road-holding (en) |
| owl:sameAs | wikidata:Road-holding dbpedia-fr:Road-holding https://global.dbpedia.org/id/8GjvM |
| prov:wasDerivedFrom | wikipedia-en:Road-holding?oldid=1123006917&ns=0 |
| foaf:isPrimaryTopicOf | wikipedia-en:Road-holding |
| is dbo:wikiPageRedirects of | dbr:Road_holding dbr:Roadholding |
| is dbo:wikiPageWikiLink of | dbr:Automobile_handling dbr:Red_Bull_Soapbox_Race dbr:Road_holding dbr:Roadholding |
| is foaf:primaryTopic of | wikipedia-en:Road-holding |