The invention refers to a method of calculation of a collision point between an ego vehicle and one or more target vehicles and to a method of emergency brake assist deceleration using the calculation of the collision point.The method of calculation of a collision point defines one or more areas of major collision risk of the ego vehicle, determines prediction of movement of the ego vehicle and target vehicles, calculates times to collision for a first ego vehicle intersecting point, a second ego vehicle intersecting point, and a target vehicle intersecting point to an intersection point. Then it applies a major risk collision point condition establishing that the collision point is inside one of the areas of the ego vehicle if the first time to collision for the first ego vehicle intersecting point to reach the intersection point is less than the third time to collision for the target intersection point to reach the intersection point and the second time to collision for the second ego vehicle intersecting point to reach the intersection point is greater than the third time to collision for the target intersection point to reach the intersection point. All the collision points for which the major collision point condition is satisfied are sent to an actuation unit.The method of emergency brake assist deceleration defines a plurality of levels of deceleration, each level of deceleration corresponding to one of the areas of major collision risk, sets an activation threshold to activate the method when the actuation unit receives the collision points for which the major risk collision point condition is satisfied, selects from the plurality of levels of deceleration the level of deceleration corresponding to one of the areas of major collision risk for which the major risk collision point condition is satisfied, and applies the selected level of deceleration.
Method of collision point calculation and emergency brake assist deceleration based on the method of collision point calculation
2024-08-21
Patent
Electronic Resource
English
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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