B60W 30/02 - Commande de la stabilité dynamique du véhicule
B60W 40/10 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés au mouvement du véhicule
B60W 40/064 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés à l'état de la route degré d'adhérence
B60W 50/02 - Détails des systèmes d'aide à la conduite des véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier pour préserver la sécurité en cas de défaillance du système d'aide à la conduite, p. ex. en diagnostiquant ou en palliant à un dysfonctionnement
2.
A SYSTEM FOR PREVENTING THE PHENOMENON OF AQUAPLANING IN A MOTOR-VEHICLE, AND RELATED METHOD
An anti-aquaplaning system for a motor-vehicle, includes control unit configured to assist a driver to avoid aquaplaning. The control unit is programmed for: receiving real time signals detected by automated driving assistance devices and a data transmission and receiving unit, integrating the received signals to generate an output signal indicative of a risk of aquaplaning, if said output signal exceeds a predetermined value of a minimum risk condition, generating a warning for the driver to inform him preventively of the risk of encountering a water layer which could lead to a lifting and/or slipping condition of the wheels on the wet road surface, in such a way that said control unit alerts the driver prior to contact of the wheels with the water layer on the road surface in such a quantity as to no longer ensure an adequate grip between the wheels and the road surface.
A method is described for determining interface conditions between a tire and the ground in a motor vehicle, particularly to determine an onset of an aquaplaning phenomena. The method includes: determining a reference longitudinal acceleration of the vehicle, measuring an actual longitudinal acceleration of the vehicle, calculating a difference between the reference longitudinal acceleration and the actual longitudinal acceleration, determining an additional drag at the interface between tire and ground on the basis of the difference, and a lift at the interface between tire and ground on the basis of the additional drag, and determining a threshold force at which a lifting of the tire from the ground occurs, comparing the lift with the threshold force and determining a degree of proximity of the interface conditions between tire and ground to an aquaplaning condition.
B60W 40/064 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés à l'état de la route degré d'adhérence
An anti-aquaplaning system for a motor vehicle includes: a storage unit for operating liquids, a mixing unit, a supply unit, and a dispensing unit. The dispensing unit includes at least a first injector and a second injector configured for the injection of liquid to the ground at the front of, respectively, a right tread and a left tread of a right wheel and a left wheel of a motor vehicle front axle. The anti-aquaplaning system operates with an operating mixture defined by operating fluids stored in a main tank and in at least one auxiliary tank.
The present invention relates to a method for determining interface conditions between tire and ground in a motor vehicle, particularly to determine the onset of aquaplaning phenomena, comprising: determining a plurality of indicators of interface conditions between tire and ground (RST, REST, GRP, GPRT, GPRD, IRR, CTR), - calculating respective values of the indicators of interface conditions between tire and ground (RST, REST, GRP, GPRT, GPRD, IRR, CTR) of said plurality on the basis of a dynamic equilibrium of the motor vehicle - determining, for each calculated value of said indicators of interface conditions between tire and ground of said plurality, a value of probability (PAq(RES), PAq(REST), PAq(GRP), PAq(GRPT), PAq(IRR), PAq(CTR), PAq(GPRD)) of the onset of an aquaplaning phenomenon, - determining, for each value of probability of the onset of an aquaplaning phenomenon, a weight (K1, K2, K3, K4, K5, K6, K7), and determining a weighed value of probability (PAq(RES)*K1, PAq(REST)*K2, PAq(GRP)*K3, PAq(GRPT)*K4, PAq(IRR)*K5, PAq(CTR) *K6, PAq(GPRD)*K7) for each value of probability of the onset of an aquaplaning phenomenon by means of application of each weight (K1, K2, K3, K4, K5, K6, K7) to the respective value of probability of the onset of an aquaplaning phenomenon (PAq(RES), PAq(REST), PAq(GRP), PAq(GRPT), PAq(IRR), PAq(CTR), PAq(GPRD)), - determining a final value (PAqJDUT) of probability of the onset of an aquaplaning phenomenon by combination of the weighed weighed values of probability (PAq(RES)*K1, PAq(REST)*K2, PAq(GRP)*K3, PAq(GRPT)*K4, PAq(IRR)*K5, PAq(CTR)*K6, PAq(GPRD)*K7).
B60W 40/06 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés à l'état de la route
B60W 40/064 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés à l'état de la route degré d'adhérence
B60W 40/068 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés à l'état de la route coefficient de friction de la route
B60W 40/10 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés au mouvement du véhicule
6.
AN ANTI-AQUAPLANING SYSTEM FOR A MOTOR VEHICLE AND RELATED METHOD
Disclosed herein is an anti-aquaplaning system (1) for a motor vehicle, comprising: - a storage unit (2) for operating liquids, - a supply unit (6), - a dispensing unit (8), wherein: - said dispensing unit (8) comprising at least a first and a second injector (10, 12) configured for injecting liquid towards the ground at a position in front of, respectively, a right tread (RT) and a left tread (LT) of a right wheel (R) and a left wheel (L) of an axle of the motor vehicle, and at least one fluid accumulator (14) configured for storing liquid under pressure and being in fluid communication with said first injector (10) and second injector (12).
09 - Appareils et instruments scientifiques et électriques
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
Produits et services
Electronic detection systems for road surface conditions; Sensors, Detectors; Monitoring instruments; Computer software and computer software platforms for detecting road surface conditions; Electronic detection systems for tyre grip and/or adhesion on the road surface. Vehicle security systems; Vehicle hydraulic system; Hydraulic power transmission units for land vehicles.
8.
A SYSTEM FOR PREVENTING THE PHENOMENON OF AQUAPLANING IN A MOTOR-VEHICLE, AND RELATED METHOD
There is described an anti-aquaplaning system (S) for a motor-vehicle (V), comprising an electronic control unit (1) configured to assist the driver to avoid a phenomenon of aquaplaning. The electronic control unit (1) is programmed for: • receiving in real time a plurality of signals detected by means of automated driving assistance devices (3) and by means of a data transmission and receiving unit (2), • integrating the received signals to generate an output signal indicative of the risk of aquaplaning, • if said output signal exceeds a predetermined value corresponding to a minimum risk condition, generating a warning for the driver so as to inform him preventively of the possible risk of encountering a water layer which could lead to a lifting and/or slipping condition of the wheels (W) on the wet road surface, • in such a way that said electronic control unit (1) is configured to alert the driver prior to the contact of the tires of the motor- vehicle (V) with a water layer extended on the road surface in such a quantity as to no longer ensure an adequate grip between the wheels (W) of the motor-vehicle (V) and the road surface.
B60W 40/06 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés à l'état de la route
B60W 40/064 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés à l'état de la route degré d'adhérence
B60W 50/14 - Moyens d'information du conducteur, pour l'avertir ou provoquer son intervention
G08G 1/048 - Détection du mouvement du trafic pour le comptage ou la commande avec des dispositions pour compenser les conditions ambiantes ou d'autres paramètres, p. ex. la neige, un véhicule arrêté à un détecteur
B60B 39/02 - Appareillage sur les véhicules pour épandre ou disperser des matériaux sur l'avant des roues
B60T 8/00 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage
9.
A METHOD FOR DETERMINING INTERFACE CONDITIONS BETWEEN TIRE AND GROUND, PARTICULARLY TO DETERMINE THE ONSET OF AQUAPLANING PHENOMENA
A method is described for determining interface conditions between tire and ground in a motor vehicle, particularly to determine the onset of aquaplaning phenomena, comprising: determining a reference longitudinal acceleration (aXPTMDL) of the vehicle, - measuring an actual longitudinal acceleration of the vehicle (SXCAN), - calculating a difference between said reference longitudinal acceleration and said actual longitudinal acceleration, determining an additional drag (FD, PWTMDL_Drag_Level ) at the interface between tire and ground on the basis of said difference, and a lift (FL) at tthhee interface between tire and ground on the basis of said additional drag (FD), - determining a threshold force at which a lifting of the tire from the ground occurs, - comparing said lift wwiitthh said threshold force and determining a degree of proximity of the interface conditions between tire and ground to an aquaplaning condition.
B60W 40/06 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés à l'état de la route
B60W 40/064 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés aux conditions ambiantes liés à l'état de la route degré d'adhérence
B60W 40/10 - Calcul ou estimation des paramètres de fonctionnement pour les systèmes d'aide à la conduite de véhicules routiers qui ne sont pas liés à la commande d'un sous-ensemble particulier liés au mouvement du véhicule
B60W 50/14 - Moyens d'information du conducteur, pour l'avertir ou provoquer son intervention
B60T 8/00 - Dispositions pour adapter la force de freinage sur la roue aux conditions propres au véhicule ou à l'état du sol, p. ex. par limitation ou variation de la force de freinage
B60W 30/02 - Commande de la stabilité dynamique du véhicule
10.
AN ANTI-AQUAPLANING SYSTEM FOR VEHICLES AND RELATED METHOD
Disclosed herein is an anti-aquaplaning system for a motor vehicle, including: • - a storage unit (2; 102) for operating liquids, • - a mixing unit (4; 104), • - a supply unit (6; 106), • - a dispensing unit (8; 108), said dispensing unit (8; 108) comprising at least a first and a second injector (12; 112) configured for the injection of liquid to the ground at the front of, respectively, a right tread (RT) and a left tread (LT) of a right wheel (R) and a left wheel (L) of a motor vehicle front axle. The system operates with an operating mixture defined by the operating fluids stored in a main tank and in at least one auxiliary tank.
There is described a dispensing unit (1; 100; 200) for an anti-aquaplaning system for a motor vehicle, comprising : - at least one injector (2; 102; 202) configured for the injection of a supply liquid towards the ground at the front of a tread (LT, RT) of a wheel of a motor vehicle axle, - a mounting element (4; 104; 204) configured for fixing the injector (2; 102; 202) to the vehicle, an actuator unit (6; 106; 206) operatively associated with each injector (2; 102; 202), the actuator unit (6; 110066;; 206) being configured to control a variation of trim of the injector (2; 102; 202) with respect to said mounting element (4; 104; 204). There are moreover described an ant i-aquaplaning system comprising; a dispensing unit and a corresponding method.
A pumping unit (1) of a system (S) for preventing the phenomenon of aquaplaning in a motor-vehicle (V), configured to generate the operating pressure of a jet of fluid directed onto a road surface. The pumping unit (1) comprises: - a cylinder-piston assembly (2) including a cylinder (3) within which a piston (4) extending along a pumping axis (X1) is slidably mounted, - wherein the piston (4) can be driven forward and backward to vary the effective volume of the cylinder (3), by means of a screw-nut mechanism (22) provided for converting a rotation movement into a linear movement, - an electric motor (5) comprising a crankshaft (50) extending along a second axis (X2) offset with respect to the pumping axis (X1) and operatively connected to the screw-nut mechanism (22), - a gear train transmission (6) provided for transmitting the rotation movement from the crankshaft (50) to the screw-nut mechanism (22), ensuring the required transmission ratio, and - a braking device (7) provided for locking the operation of the pumping unit (1) during an operational step of the motor-vehicle (V) wherein the emission of the jet of fluid is not required.
F04B 9/04 - "Machines" ou pompes à piston caractérisées par les moyens entraînants ou entraînés liés à leurs organes de travail les moyens étant mécaniques constitués par des cames, des excentriques ou des mécanismes à téton et rainure guide
B60B 39/00 - Amélioration de l'adhérence des roues
F04B 11/00 - Égalisation des pulsations, p. ex. au moyen de réservoirs d'airAnticavitation
F04B 17/03 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques
A system for preventing aquaplaning in a vehicle, said system comprising: a tank suitable for containing a fluid; sensor means configured to reveal the conditions of the vehicle and/or the environment in which the vehicle is found, and in particular, the conditions of a street surface; injector means configured to generate a jet of fluid on said street surface, said injector means being associated with at least one wheel of the vehicle; a control unit associated with sensor means and configured for controlling said injector means according to the conditions revealed by said sensor means. A unique feature of the system of the present invention consists in the fact that said injector means comprise at least one “fan-type” nozzle and equipped with a slit-shaped outlet opening suitable for creating a flat jet of fluid.
B60B 39/02 - Appareillage sur les véhicules pour épandre ou disperser des matériaux sur l'avant des roues
B60B 39/10 - Appareillage sur les véhicules pour épandre ou disperser des matériaux sur l'avant des roues le matériau étant de forme granuleuse, p. ex. sable la dispersion étant commandée électriquement ou électromagnétiquement
B60B 39/08 - Appareillage sur les véhicules pour épandre ou disperser des matériaux sur l'avant des roues le matériau étant de forme granuleuse, p. ex. sable la dispersion étant faite au moyen de fluides
Device to avoid the aquaplaning problem on a vehicle (10), the device being applicable at least on the drive wheels (28) of the vehicle and including a tank (12) of fluid under pressure that is connected to a plurality of fluid ejectors (26) associated with the respective wheels and suitable to shoot jets of pressurized fluid onto the road surface, and sensors (18) suitable to detect the conditions of the road surface to actuate the fluid ejectors. The fluid ejectors (26) are injector nozzles controlled by a central processing unit (CPU), which receives the signals from the sensors (18), and are operated in a manner coordinated with the physical position of the respective wheel so as to be continually oriented in the direction of travel of the same wheel.
B60B 39/02 - Appareillage sur les véhicules pour épandre ou disperser des matériaux sur l'avant des roues
B60B 39/10 - Appareillage sur les véhicules pour épandre ou disperser des matériaux sur l'avant des roues le matériau étant de forme granuleuse, p. ex. sable la dispersion étant commandée électriquement ou électromagnétiquement
