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    METHOD TO CONTROL A SOLENOID?S CURRENT RECIRCULATION PATH TO ENABLE A SPECIFIC ECU DESIGN TO BE APPLIED TO MULTIPLE TRANSMISSION ARCHITECTURES
    1.
    发明申请
    METHOD TO CONTROL A SOLENOID?S CURRENT RECIRCULATION PATH TO ENABLE A SPECIFIC ECU DESIGN TO BE APPLIED TO MULTIPLE TRANSMISSION ARCHITECTURES 审中-公开

    公开(公告)号：US20190264804A1

    公开(公告)日：2019-08-29

    申请号：US15903645

    申请日：2018-02-23

    Applicant: GM Global Technology Operations LLC

    Inventor： Timothy P. Philippart ,  Robert J. Horner ,  Michael R. Grimes

    IPC: F16H61/02 ,  F16H61/00

    Abstract: A method for controlling a vehicle transmission includes electrically connecting a Transmission or Powertrain Control Unit (TCU or PCU) to the vehicle transmission, the TCU or PCU controlling operation of the transmission and having switchable power on a high side, and switchable ground on a low side of a plurality of solenoids in a shared functional grouping configuration, proportionally controlling an amount of current through a load such as a solenoid via controlling an amount of time current is being sunk through the solenoid to ground and controlling an amount of time current is provided via an adaptable recirculation path in the TCU or PCU, the recirculation path minimizing current decay when the solenoid is driven in an OFF state. The TCU or PCU having a single hardware layout, but being electronically adaptable to control a plurality of transmission types and solenoid architectures based on any desired functional solenoid grouping.

    Combination oil control valve and fuel injector driver
    2.
    发明授权
    Combination oil control valve and fuel injector driver 有权

    公开(公告)号：US11073051B2

    公开(公告)日：2021-07-27

    申请号：US16449735

    申请日：2019-06-24

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： S.M. Nayeem Hasan ,  Timothy P. Philippart

    IPC: F01L1/344 ,  F01M9/10 ,  F02D7/00 ,  F01L1/053 ,  F01L1/047

    Abstract: A first high side switch is configured to connect and disconnect a first reference potential to and from a first node, the first node configured to be electrically connected to a second node and a first end of a first inductor coil of a fuel injector of a cylinder and a first end of a second inductor coil of an oil control valve of the cylinder. A second high side switch is configured to connect and disconnect a second reference potential to and from the second node. A first low side switch is configured to connect and disconnect a ground reference potential to and from a second end of the second inductor coil of the oil control valve. A second low side switch is configured to connect and disconnect the ground reference potential to and from a second end of the first inductor coil of the fuel injector.

    SYSTEM AND METHOD OF USING FLEXIBLE ECU INPUTS TO SPECIFICALLY DETERMINE THE TYPE OF ELECTRICAL FAULT ON AN INPUT
    3.
    发明申请
    SYSTEM AND METHOD OF USING FLEXIBLE ECU INPUTS TO SPECIFICALLY DETERMINE THE TYPE OF ELECTRICAL FAULT ON AN INPUT 有权
    使用灵活的ECU输入的系统和方法来特定地确定输入上的电气故障类型

    公开(公告)号：US20150022215A1

    公开(公告)日：2015-01-22

    申请号：US13943118

    申请日：2013-07-16

    Applicant: GM Global Technology Operations LLC

    Inventor： Timothy P. Philippart ,  Steven Zechiel

    IPC: G01R31/00

    CPC classification number: G01R31/007 ,  B60L3/0069 ,  B60L3/04 ,  B60L2240/36 ,  G01R19/16595

    Abstract: A control module includes an input module configured to operate in a normal operating state and a fault diagnosis state. The input module receives an input signal from a circuit module and generates a voltage based on the input signal. In the normal operating state, a fault diagnostic module determines whether the voltage is in a first range or a second range. The first range and the second range indicate that a fault is detected in the circuit module. The fault diagnostic module determines that the detected fault is a first fault type if the voltage is in the first range, transitions the input module from the normal operating state to the fault diagnosis state if the voltage is in the second range, and determines whether the detected fault is a second fault type or a third fault type based on the voltage in the fault diagnosis state.

    Abstract translation: 控制模块包括被配置为在正常操作状态和故障诊断状态下操作的输入模块。 输入模块从电路模块接收输入信号，并根据输入信号产生电压。 在正常工作状态下，故障诊断模块确定电压是处于第一范围还是第二范围。 第一个范围和第二个范围表示在电路模块中检测到故障。 如果电压处于第一范围，则故障诊断模块确定检测到的故障是第一故障类型，如果电压处于第二范围，则将输入模块从正常工作状态转变到故障诊断状态，并且确定是否 基于故障诊断状态下的电压，检测到的故障是第二种故障类型或第三种故障类型。

    METHOD AND SYSTEM FOR SELECTIVE RESET OF SENSORS POWERED FROM A COMMON POWER SUPPLY
    4.
    发明申请
    METHOD AND SYSTEM FOR SELECTIVE RESET OF SENSORS POWERED FROM A COMMON POWER SUPPLY 审中-公开

    公开(公告)号：US20200025841A1

    公开(公告)日：2020-01-23

    申请号：US16040016

    申请日：2018-07-19

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Timothy P. Philippart ,  S.M. Nayeem Hasan

    IPC: G01R33/07 ,  B60W20/10

    Abstract: A system and method for selective reset of a sensor powered from a common power supply. The system includes a power supply, a plurality of sensors, each sensor connected to the power supply, responsive to the power supply, configured to detect a sensed parameter and provide a signal corresponding to the parameter. The system also includes a transimpedance current limiting device connected in series with a sensor of the plurality of sensors that limits current from the sensor, a switching device connected in series with the transimpedance current limiting device, that is controllable to interrupt current flow through the sensor, and a controller connected to the plurality of sensors, the controller monitors various signals from at least one sensor and controls the switching device based on those signals, wherein the controller deactivates the switching device if the current from the sensor exceeds a selected threshold.

    THREE STEP CAM DEFAULTING STRATEGY FOR ENGINE POSITION SENSORS
    5.
    发明申请
    THREE STEP CAM DEFAULTING STRATEGY FOR ENGINE POSITION SENSORS 审中-公开

    公开(公告)号：US20180340484A1

    公开(公告)日：2018-11-29

    申请号：US15603794

    申请日：2017-05-24

    Applicant: GM Global Technology Operations LLC

    Inventor： Etsuko Stewart ,  Timothy P. Philippart ,  Scott T. Feldmann ,  Zhong Li

    IPC: F02D41/22 ,  F01L13/00

    Abstract: A method is provided for operating a three step camshaft system during engine position sensor fault conditions. The three step camshaft has multiple cam actuators each having an actuator pin. The method includes: disposing multiple camshaft barrels on a camshaft, each barrel having a slot receiving the actuator pin of a cam actuator during camshaft barrel rotation axially displacing each camshaft barrel to a high lift lobe position, a low lift lobe position and an active fuel management (AFM) lobe position; determining if an engine position sensor is in a fault condition; identifying if the fault condition occurs simultaneously with any of the camshaft barrels positioned in the AFM lobe position; energizing selected cam actuators in communication with the camshaft barrels positioned in the AFM lobe position to axially displace the camshaft barrel away from the AFM lobe position and to the low lift lobe position.

    Three step cam defaulting strategy for engine position sensors
    7.
    发明授权
    Three step cam defaulting strategy for engine position sensors 有权

    公开(公告)号：US10480444B2

    公开(公告)日：2019-11-19

    申请号：US15603794

    申请日：2017-05-24

    Applicant: GM Global Technology Operations LLC

    Inventor： Etsuko Stewart ,  Timothy P. Philippart ,  Scott T. Feldmann ,  Zhong Li

    IPC: F01L1/14 ,  F02D41/22 ,  F01L13/00

    Abstract: A method is provided for operating a three step camshaft system during engine position sensor fault conditions. The three step camshaft has multiple cam actuators each having an actuator pin. The method includes: disposing multiple camshaft barrels on a camshaft, each barrel having a slot receiving the actuator pin of a cam actuator during camshaft barrel rotation axially displacing each camshaft barrel to a high lift lobe position, a low lift lobe position and an active fuel management (AFM) lobe position; determining if an engine position sensor is in a fault condition; identifying if the fault condition occurs simultaneously with any of the camshaft barrels positioned in the AFM lobe position; energizing selected cam actuators in communication with the camshaft barrels positioned in the AFM lobe position to axially displace the camshaft barrel away from the AFM lobe position and to the low lift lobe position.

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