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    • 3. 发明申请
    • A METHOD OF DETERMINING CLOSING TIME OF NEEDLE VALVE OF A FUEL INJECTOR
    • WO2022171822A1
    • 2022-08-18
    • PCT/EP2022/053417
    • 2022-02-11
    • DELPHI TECHNOLOGIES IP LIMITEDBORGWARNER FRANCE SAS
    • PERROT, Baptiste
    • F02D41/20F02D41/24
    • In a solenoid controlled fuel injector including a solenoid controlled actuator, said actuator adapted to control a needle valve by the movement of a needle to and from a valve seat of said needle valve, a method of determining the closing time of the needle valve when the valve needle contacts the valve seat during an operational cycle of said fuel injector, and subsequently controlling said injector based on said closing time comprising the steps of: a) providing a reference curve/signal, Ref (7); b) activating said injector by sending an activation pulse to said solenoid, and from a timepoint after the end of the activation pulse, measuring the voltage signal across the terminals of said solenoid to provide a solenoid voltage signal, Raw signal, (8) c) determining a difference signal, Delta_signal (9) based on of the difference between the signal of a step a) and that determined in step b); d) differentiating said signal of step c) to provide a first differential signal Diff1 (11);e) from step d) providing a signal Diff1_Normalised of values, whose values decrease the further away from zero the values of Diff1 are; f) differentiating the plot/single of step d) to provide a second derivative Diff2 (17) of said Delta _signal; g) multiplying the values of plots/signals from step f), step e) and c) to provide a further plot, Mix (19); h) determining the maximum peak value of the plot from step g), or a filtered version thereof, and determining the valve closing time from the time point of said determined maximum peak; i) subsequently controlling said fuel injector based on the result of step h).
    • 4. 发明申请
    • HVIL PLUG ASSEMBLY, HVIL CONNECTION DEVICE AND METHOD FOR REMOVING HVIL PLUG ASSEMBLY
    • WO2022106693A1
    • 2022-05-27
    • PCT/EP2021/082533
    • 2021-11-22
    • DELPHI TECHNOLOGIES IP LIMITEDBORGWARNER FRANCE SAS
    • XIANG, RenjiangLIU, JianGU, Jacky
    • H01R13/53H01R13/629
    • The present invention relates to a HVIL plug assembly (10) configured to establish circuit continuity when coupled to a HVIL connector (21) in a high voltage interlock circuit and disable circuit continuity when decoupled from the HVIL connector, the HVIL plug assembly (10) comprising:- a main body (11) configured to abut against an access opening (23) of a housing (25) of an electrical device (20); - a HVIL terminal (12) coupled to the main body (11) and configured to couple to the HVIL connector (21); - a fastener (14) coupled to the main body (11) and configured to move between a fastened position and a loosened position, wherein in the fastened position, the main body (11) abuts against the access opening (23) via the fastener (14) so as to prevent the access to the components in the electrical device (20), and in the loosened position, the main body (11) is adapted to be removed; and - a separation delay member (13) coupled to the main body (11) and, in cooperation with the housing (25) of the electrical device, configured to allow the main body (11) to move from a separation delay position to a removal position when the fastener (13) is in the loosened position, wherein in the separation delay position, the HVIL terminal (12) is decoupled from the HVIL connector (21) and the main body (11) is prevented from removal from the accessing opening (23) and prevents access to the components in the electrical device (20), and in the removal position, the main body (11) is free to be removed. The invention increases the safety of the high-voltage interlock system, and has simple structure, low manufacturing and maintenance costs.
    • 5. 发明申请
    • FUEL PUMP ASSEMBLY
    • WO2022101301A1
    • 2022-05-19
    • PCT/EP2021/081302
    • 2021-11-10
    • DELPHI TECHNOLOGIES IP LIMITEDBORGWARNER FRANCE SAS
    • JONES, David
    • F02M55/04F02M59/44F02M59/10
    • A fuel pump assembly (110) for an internal combustion engine comprises a plunger (114) arranged to reciprocate within a plunger bore (132) under the influence of a drive arrangement (123) driven by means of a drive shaft (18), to perform a pumping cycle comprising a pumping stroke and a return stroke, the pumping stroke comprising movement of the plunger (114) from a bottom dead centre (BDC) position to a top dead centre (TDC) position to pressurise fuel within a pump chamber (36), and the return stroke comprising movement of the plunger (114) from the TDC position to the BDC position. The fuel pump assembly comprises a spring assembly including a return spring (154) configured to apply a return force to the plunger (114) to effect the return stroke, wherein the return spring (154) is cooperable, at a first end (62), with a first member (150) coupled to the plunger (114) and movable at a first speed dependent on the speed of rotation of the drive shaft (18) and, at a second end (64), with a second member (70) which is movable at a damped speed relative to the first speed so that the return spring has a variable stroke length depending on the speed of rotation of the drive shaft (18).
    • 8. 发明申请
    • A PUMP MODULE FOR A DOSING SYSTEM AND A NON-RETURN VALVE ASSEMBLY THEREFOR
    • WO2020049131A1
    • 2020-03-12
    • PCT/EP2019/073770
    • 2019-09-05
    • DELPHI TECHNOLOGIES IP LIMITEDDELPHI FRANCE SAS
    • ZHOU, LarryWANG, FeiSHI, Bryce
    • F01N3/20
    • This invention concerns a pump module (20) for an SCR dosing system (2) arranged to provide reagent to an exhaust gas stream of an internal combustion engine (4) having an exhaust system (6) with a SCR catalyst (16), the pump module (20) comprising a pump assembly (32) configured to pump regent through a supply line (26) from a tank module (18) to a dosing module (22) and to pump excess reagent through a return line (28) back to the tank module (18), wherein the pump module (20) further comprises a non-return valve assembly (36) positioned within the return line (28), the non-return valve assembly (36) comprising a first body (52) comprising an inlet passage (60) and a valve seat (64) positioned at the end of the inlet passage (60); a second body (56) comprising an outlet passage (70); a valve chamber (84) defined between the first body (52) and the second body (56), the valve chamber (84) being in fluidic communication with the inlet and outlet passages (60, 70); and, a deformable valve member (54) received within the valve chamber (84), wherein the deformable valve member (54) is configured to deform between a closed position, in which it is biased into engagement with the valve seat (64) to seal the inlet passage (60), and an open position, in which it is held from the valve seat (64) to permit a flow of reagent through the valve chamber (84) from the inlet passage (60) to the outlet passage (70) when the pump assembly (32) is pumping reagent through the supply line (26) from the tank module (18) to the dosing module (22).
    • 9. 发明申请
    • TESTING APPARATUS
    • WO2020011528A1
    • 2020-01-16
    • PCT/EP2019/066888
    • 2019-06-25
    • DELPHI TECHNOLOGIES IP LIMITEDDELPHI FRANCE SAS
    • LYLE, Anthony P.
    • F02M65/00G01M15/02F02M37/00
    • 22 DP-324753 TESTING APPARATUS ABSTRACT5 A testing apparatus for a fuel injector for delivering fuel into an internal combustion engine, in use, wherein the fuel injector under test comprises an inlet for receiving fluid to be injected during a test and a nozzle end for delivering the fluid through an injector outlet, in use, the testing apparatus comprising an upper mount (40) for receiving the inlet of the fuel injector under test; a lower mount (42) located beneath10 the upper mount for receiving the nozzle end of the fuel injector under test; and at least one of a removable inlet adaptor (52) for use with a fuel injector under test of a first type, wherein the inlet end of the fuel injector under test of the first type fits into the inlet adaptor to allow a flow of fluid to be delivered through the inlet adaptor to the fuel injector under test of the first type, the inlet adaptor being removable15 from the upper mount when the fuel injector under test is of a second type or being interchangeable with a different inlet adaptor when the fuel injector under test is of a second type; and a removable outlet adaptor (74) for use with a fuel injector under test of a first type, and being removable from the lower mount (42) when the fuel injector under test is of a second type or being interchangeable with a different20 outlet adaptor (74) when the fuel injector under test is of a second type. FIGURE 3