Device for controlling the trajectory of a vehicle

    公开(公告)号:US11352059B2

    公开(公告)日:2022-06-07

    申请号:US16488419

    申请日:2018-01-19

    Applicant: RENAULT s.a.s.

    Abstract: A device for controlling, in real time, the trajectory of an autonomous vehicle includes a control module which produces, in real time, from a state vector at each point in time, a first steering command in order to stabilize the trajectory of the vehicle relative to a vehicle path. The device includes an anticipation module which generates a variable representative of a meta-vector of deviations for each predicted position of the vehicle at points in time resulting in a given quantity at the current point in time and of the state vector at the current point in time. The control module produces the first steering command by quadratic optimization of a relationship between the generated representative variable and a meta-vector of successive steering commands for each predicted position of the vehicle at points in time resulting in a given quantity at the current point in time.

    REDUCTION OF THE ATTACK SURFACE IN A COMMUNICATIONS SYSTEM

    公开(公告)号:US20220174007A1

    公开(公告)日:2022-06-02

    申请号:US17436786

    申请日:2020-03-12

    Abstract: A system and a method are for routing data packets from or to at least one electronic control unit, referred to as outgoing packets or incoming packets respectively. The at least one electronic control unit is connected to a communications system via a first interface. The communications system is connected via a second interface to a modem suitable for transferring the outgoing packets and the incoming packets to or respectively from at least one telecommunications network through a plurality of access points. Each access point is secured or unsecured. The outgoing and incoming packets are processed according to the type of access point by which the packets are transferred to or from the at least one telecommunications network.

    METHOD FOR CONTROLLING THE START-UP OF AN OIL PUMP

    公开(公告)号:US20220170455A1

    公开(公告)日:2022-06-02

    申请号:US17432309

    申请日:2020-01-28

    Applicant: RENAULT s.a.s.

    Inventor: Mathieu LELEU

    Abstract: A method controls the start-up of an oil pump of a gearbox by a brushless electric motor that has no position sensor. The stator coils are powered from the off mode in a constant-current open-loop control sequence until the pump reaches a speed threshold at which speed regulation switches over to closed-loop control on a setpoint corresponding to the lubrication flow rate required to ensure the reliability of the gearbox, but without in so doing exceeding a current threshold indicative of pump seizure, at which point motor control switches back over to the constant-current open-loop control sequence. The open-loop current setpoint is higher than the threshold for switching over to closed-loop control so that in the open-loop control mode the motor torque available at the pump is higher than in the closed-loop control mode.

    METHOD FOR CONTROLLING THE POSITIONING OF A MOTOR VEHICLE ON A TRAFFIC LANE

    公开(公告)号:US20220165071A1

    公开(公告)日:2022-05-26

    申请号:US17439174

    申请日:2020-03-20

    Abstract: A method is for controlling the positioning of a motor vehicle on a road including several traffic lanes defined laterally by road marking lines. The method includes receiving a signal originating from a camera equipping the vehicle, analyzing the signal in order to detect the road marking lines, identifying, according to a predefined classification of the types of road marking lines, the type of lines detected defining the vehicle's current traffic lane, determining characteristics of the current traffic lane depending on the type of road marking lines defining it and, if the current traffic lane is one of the left-most lane or the right-most lane in the vehicle's direction of travel, shifting the vehicle towards the distal edge of the road relative to the central axis of the current traffic lane.

    VEHICLE DISPATCH SERVICE BOARDING LOCATION DETERMINATION METHOD, AND VEHICLE DISPATCH SERVICE BOARDING LOCATION DETERMINATION DEVICE

    公开(公告)号:US20220164737A1

    公开(公告)日:2022-05-26

    申请号:US17436107

    申请日:2019-04-03

    Inventor: Naoki KOJO

    Abstract: A vehicle dispatch service boarding location determination method uses a vehicle dispatch information data server and a terminal to determine a boarding location for a dispatched vehicle based on a vehicle dispatch request from the terminal. When there is a vehicle dispatch request, position information of a vehicle dispatch request point is acquired. Boarding location candidates present in a periphery of the vehicle dispatch request point are calculated based on the position information point and map information. A boarding location recognition difficulty, which is a difficulty for the user in recognizing the boarding location candidate as a boarding location, is calculated for each of the boarding location candidates. A boarding location candidate for which the boarding location recognition difficulty is low among the boarding location candidates is determined as the boarding location where the user will be picked up by the dispatched vehicle.

    DEVICE FOR COOLING AND LUBRICATING AN ELECTRIC POWER TRAIN OF AN ELECTRIC OR HYBRID MOTOR VEHICLE

    公开(公告)号:US20220126677A1

    公开(公告)日:2022-04-28

    申请号:US17602573

    申请日:2020-03-20

    Abstract: A device cools a power train of a vehicle including an electric machine with a wound rotor coupled to a speed reducer. The device includes: an oil cooling circuit for cooling the electric machine, the circuit include a heat exchanger connected to an oil tank and a water circuit that connects members of the power train through the radiator of the vehicle; a temperature adjuster of the oil flow supplied at the outlet of the exchanger to a distribution circuit projecting the oil to elements for heating the electric machine; a circuit for lubricating the reducer, the circuit including a sump, the bottom of the sump forming a reserve of oil for lubricating the reducer; and a bypass channel at the outlet of the exchanger, for conveying a portion of the temperature-adjusted oil in contact with the bottom of the sump in order to cool the oil reserve.

    Rotor for rotating electrical machine and rotor core support structure for rotating electrical machine

    公开(公告)号:US11303172B2

    公开(公告)日:2022-04-12

    申请号:US16979011

    申请日:2018-03-09

    Abstract: A rotor of a rotary electric machine includes a rotor shaft, a rotor core fixedly supported on an outer circumference of the rotor shaft. The rotor shaft is provided, in a cross section perpendicular to the rotation axis, with a first outer edge portion projecting in a radial direction of the rotor shaft, and a second outer edge portion arranged in line with the first outer edge portion one after the other in a circumferential direction of the rotor shaft. The rotor core has a core insertion hole into which the rotor shaft is inserted, and a shaft holding portion on an inner circumference forming the core insertion hole, the shaft holding portion being configured to hold the first outer edge portion from the opposite sides in the circumferential direction of the rotor shaft. The shaft holding portion is in a non-contact state with the second outer edge portion.

    Cage for wound rotor of a synchronous electric machine

    公开(公告)号:US11283322B2

    公开(公告)日:2022-03-22

    申请号:US17056908

    申请日:2019-05-13

    Abstract: A cage for a wound rotor includes a first portion and a second portion to be rigidly connected to one another. Each portion includes an end ring and a circumferential plurality of rods extending away from the end ring parallel to the axis of revolution of the end ring. Each rod has a main portion and an end portion. For each rod of the first portion, the end portion of the rod is shaped to be rigidly connected to the end portion of at least one complementary rod of the second portion when the two portions are each installed at a longitudinal end of the body of the rotor so that the two complementary rods rigidly connected form a slot wedge extending between the two end rings of the two portions of the cage.

    DEVICE AND METHOD FOR MONITORING THE TRAJECTORY OF A MOTOR VEHICLE

    公开(公告)号:US20220081028A1

    公开(公告)日:2022-03-17

    申请号:US17416965

    申请日:2019-12-12

    Applicant: RENAULT s.a.s.

    Abstract: A method for setting an anticipator module with which a control device controls the trajectory of a motor vehicle is equipped includes detecting whether the anticipator module is unsuitable during a turn by taking account of a lateral deviation with respect to an ideal trajectory and/or a contribution of a feedback module of the control device, determining primary parameters, calculating a secondary parameter by an optimization-based calculation method taking account of the determined primary parameters, and updating a bicycle model of the vehicle by taking account of the calculated secondary parameter.

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