公开(公告)号：EP2149695A3

公开(公告)日：2010-10-20

申请号：EP09175047.1

申请日：2003-09-23

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Baker, Nigel ,  Martin, Steven ,  Griffin, Peter ,  Cheever Jr, Gordon ,  Downey, Joel ,  Engel, Joseph

IPC: F02D41/20 ,  H01L41/04

CPC classification number: F02D41/2096 ,  F02D2041/2051 ,  F02D2041/2058 ,  F02D2041/2072 ,  F02D2041/2082

Abstract: A method of controlling a drive circuit (20a, 20b, 20c) for an injector arrangement including at least one injector (12; 12a, 12b) having capacitive-like properties, the drive circuit including at least one inductor (L1; L11; L21; L22) and a bidirectional current path (26) coupled to the at least one injector; selector means (Q13, Q14, Q23, Q24) for selecting one of the at least one injector(s) (12; 12a, 12b); and switching means for controlling current flow through the at least one injector (12; 12a, 12b) and the at least one inductor (L1; L11; L21; L22) to open and close the at least one injector, wherein the switching means includes a discharge switch means controllable to cause a charging current (I CHARGE ) to flow through the bidirectional current path (26) during a charge mode so as to charge the at least one injector, and discharge switch means (Q2; Q12; Q22) to cause a discharge current (I DISCHARGE ) to flow through the bidirectional current path (26) during a discharge mode so as to discharge the at least one injector. The method comprises selecting an injector (12; 12a, 12b) to permit a discharging current to be supplied thereto so as to initiate an injection event; activating the discharge switch means (Q2; Q12; Q22) to supply the discharging current to the selected injector until the voltage across the selected injector reaches a predetermined discharge level (V discharge ); and enabling the discharge switch means (Q2; Q12; Q22) for a time period (t1) after the predetermined discharge level (V discharge ) has been reached thereby reducing voltage ringing in the drive circuit.

公开(公告)号：EP2428670A1

公开(公告)日：2012-03-14

申请号：EP11191576.5

申请日：2006-04-03

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Perryman, Louisa ,  Baker, Nigel ,  Martin, Steven ,  Sykes, Martin

IPC: F02D41/20 ,  F02D41/22

CPC classification number: F02D41/2096 ,  F02D41/062 ,  F02D41/221 ,  F02D2041/2003 ,  F02D2041/2006 ,  F02D2041/2051 ,  F02D2041/2058 ,  F02D2041/2072 ,  F02D2041/2089 ,  F02D2041/2093

Abstract: The invention relates to a drive circuit (20a) for an injector arrangement comprising a fuel injector (12a,12b), and a method of detecting faults in the drive circuit (20a). The drive circuit (20a) comprises diagnostic means (R F ). The diagnostic means (R F ) is operable to sense a detected current (I dect ) and to provide a fault signal on detection of a fault, when the detected current (I dect ) is at variance from a threshold current (I trip ).

Abstract translation: 本发明涉及一种用于喷射器装置的驱动电路（20a），其包括燃料喷射器（12a，12b），以及一种检测驱动电路（20a）中的故障的方法。 驱动电路（20a）包括诊断装置（R F）。 当检测到的电流（I dect）与阈值电流（I跳闸）不同时，诊断装置（R F）可操作以检测检测到的电流（I dect）并且在故障检测时提供故障信号。

公开(公告)号：EP2290211A1

公开(公告)日：2011-03-02

申请号：EP10185653.2

申请日：2005-03-10

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Baker, Nigel ,  Martin, Steven

IPC: F02D41/20 ,  H02M3/158 ,  H02M3/335

CPC classification number: F02D41/2096 ,  F02D41/20 ,  F02D41/3005 ,  F02D2041/2003 ,  F02D2041/201 ,  F02D2041/2017 ,  F02D2041/2027 ,  F02D2041/2048 ,  F02D2041/2051 ,  F02D2041/2058 ,  F02D2400/14 ,  H02M3/1584 ,  H02M3/33523

Abstract: The invention relates to a power supply arrangement (60,70,80) for an injector drive circuit (12) configured to operate in an energy recovery mode. The power supply arrangement receives an input voltage and includes: voltage boost means (24,24) for increasing the input voltage to a power supply output voltage (Vsupply), the voltage boost means including a three-phase boost system (124) including first, second and third inductors (74a,74b,74c); switch means (28; 28a,28b,28c) operable between open and closed states to control current flow through said voltage boost means (24,124), and a controller (14) for generating at least one control signal (130; 230,64,130A,130B,130C) for the switch means to control switch status based on an injection running condition, thereby to regulate the power supply output voltage (Vsupply).

Abstract translation: 用于喷射器驱动电路（12）的电源装置（60,70,80）技术领域本发明涉及一种用于喷射器驱动电路（12）的电源装置（60,70,80） 该电源装置接收输入电压并且包括：用于将输入电压增加到电源输出电压（Vsupply）的升压装置（24,24），该升压装置包括三相升压系统（124），该三相升压系统包括第一 ，第二和第三电感器（74a，74b，74c）; 在开状态和闭状态之间可操作以控制流过所述升压装置（24,124）的电流的开关装置（28; 28a，28b，28c）;以及用于产生至少一个控制信号（130; 230,64,130A ，130B，130C），用于基于喷射运行条件来控制开关状态，从而调节电源输出电压（Vsupply）。