DEVICE TO SUPPLY AN INTERNAL COMBUSTION ENGINE WITH WATER COMING FROM A TANK OF AN EXHAUST SYSTEM PROVIDED WITH EXHAUST GAS AFTER-TREATMENT

    公开(公告)号:US20190170036A1

    公开(公告)日:2019-06-06

    申请号:US16177595

    申请日:2018-11-01

    Abstract: A device to supply an internal combustion engine with water comprising one single tank of an exhaust system provided with exhaust gas after-treatment; the tank is divided, on the inside, into a first powder urea storage area and a second water collecting area, and wherein the powder urea and the water are mixed inside the tank so as to obtain a water solution of urea with a variable concentration, the device comprises at least one second electromagnetic injector, which is designed to inject water into the internal combustion engine, and a second pumping device, which is drowned inside the tank and draws from the second water collecting area in order to supply water under pressure to said at least one second electromagnetic injector.

    METHOD FOR ESTIMATING THE CURRENT AND THE STATE OF CHARGE OF A BATTERY PACK OR CELL, WITHOUT DIRECT DETECTION OF CURRENT UNDER OPERATING CONDITIONS

    公开(公告)号:US20180340981A1

    公开(公告)日:2018-11-29

    申请号:US15985926

    申请日:2018-05-22

    Abstract: A method for estimating an operating current I dispensed by a battery pack or cell including the steps of acquiring characterization data of the battery pack or cell, related to measured time trends of a voltage Vm and of a characterization current Im of the battery pack or cell, associated with a respective characterization temperature value Tk; and then processing the characterization data to determine a plurality of parameters P of a model of the battery pack or cell, as a function of temperature and state of charge SOC. Measuring an operating voltage V of the battery pack or cell and an operating temperature T and for estimating the operating current I of the battery pack or cell. A plurality of time observation windows Wi is identified and characterization voltage Vmi values are detected. Then, at each observation window Wi, the following actions are performed: calculating a value of the state of charge SOCi of the battery pack or cell; calculating an estimated voltage VABi, by means of the model of the battery pack or cell, as a function of respective nominal values of the parameters P; determining a respective error function Ei dependent on the difference between the estimated voltage VABi and the characterization voltage Vmi of the time observation window Wi; calculating an actual value Pi for each parameter P, by minimizing the aforesaid error function Ei.

    METHOD TO CONTROL A HYBRID DRIVE SYSTEM FOR A ROAD VEHICLE

    公开(公告)号:US20180319390A1

    公开(公告)日:2018-11-08

    申请号:US15969324

    申请日:2018-05-02

    Abstract: A method for controlling a hybrid drive system for a road vehicle provided with at least a pair of drive wheels; the hybrid drive system comprises: an internal combustion heat engine, which is designed to transmit the motion to the drive wheels and is provided with a turbocharger equipped with a turbine; a first electric machine, which is able to transmit the motion to the drive wheels; and a second electric machine, which is mechanically connected to the turbine of the turbocharger. In a possible operating mode, the internal combustion heat engine is controlled to pursue a target torque by completely opening a throttle valve, operating the second electric machine as an electric generator and the first electric machine as a motor, and varying the electric power generated by the second electric machine so as to adjust the flow rate of fresh air fed to the cylinder of the internal combustion heat engine.

    METHOD AND APPARATUS TO SUPPLY WATER TO A TANK OF AN EXHAUST SYSTEM PROVIDED WITH EXHAUST GAS AFTER-TREATMENT FOR A COMBUSTION ENGINE

    公开(公告)号:US20180258812A1

    公开(公告)日:2018-09-13

    申请号:US15912737

    申请日:2018-03-06

    Abstract: An exhaust system provided with exhaust gas after-treatment for a combustion engine comprising an exhaust pipe and a pumping device, which is buried inside the tank, from which it draws so as to feed a water solution of urea under pressure to an electromagnetic injector; the tank is supplied with urea powder and water, which are mixed on the inside so as to obtain a water solution of urea with a variable concentration; and a water supply circuit to supply water to the tank, which is provided with a first pipe, which draws the water from a basin and is regulated by a first valve, which allows water to be introduced into the tank, if necessary, or to be drained to the surrounding environment when the water quantity already contained in the tank is sufficient.

    Integrated electronic device with solid-state relay and pre-charge circuit

    公开(公告)号:US10046647B2

    公开(公告)日:2018-08-14

    申请号:US15050516

    申请日:2016-02-23

    Abstract: An electronic device including an electronic switch M1, an electrical pre-charge circuit and a measurement, command and diagnosis module. The main electronic switch M1 has a first electrical terminal D1, a second electrical terminal S1, and a main driving terminal G1. The main electronic switch M1 is adapted to take, based on a driving signal DRV, depending on the command signal CMD and on an enabling signal ENB, a closed condition or an open condition, wherein the first electrical terminal D1 is respectively connected to or disconnected from the second electrical terminal S1. The pre-charge electrical circuit is adapted to carry out, based on the command signal CMD, a pre-charge operation, aimed at equalizing the electric potentials (V1, V2) of the first and second terminals of the device, before the main electronic switch M1 takes a closed condition, upon of a transition from the open condition.

    METHOD FOR MONITORING DATA TRAFFIC IN A MOTOR-VEHICLE NETWORK

    公开(公告)号:US20180131712A1

    公开(公告)日:2018-05-10

    申请号:US15805242

    申请日:2017-11-07

    Abstract: A method for monitoring the data traffic over a CAN bus of a CAN-type communication network of a motor vehicle. The network includes a plurality of nodes associated to said CAN bus in a signal-exchange relationship in order to detect data traffic with anomalies and generate an alert. The method includes the steps of carrying out at each node an intrusion-detection operation on messages received at said node and a corresponding vehicle-recovery operation. The intrusion-detection operation includes receiving CAN messages or groups of CAN messages transmitted to the node on the CAN bus, analysing the CAN messages or groups of CAN messages, and issuing an alert comprising a type of anomaly that has caused the alert. The vehicle-recovery operation includes implementing, on the basis of said type of anomaly, a corresponding intrusion-recovery action.

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