Variable valve timing system
    2.
    发明授权
    Variable valve timing system 有权
    可变气门正时系统

    公开(公告)号:US08020527B2

    公开(公告)日:2011-09-20

    申请号:US12438955

    申请日:2007-08-29

    IPC分类号: F01L1/34

    摘要: A valve timing control is executed by an ECU that controls an engine and an electric-motor ECU that controls an electric motor. The ECU and the electric-motor EDU serve different functions. The ECU sets the target phase of an intake valve based on the engine operating state, and prepares a rotational speed command value for the electric motor that serves as an actuator such that a phase feedback control loop, in which the intake valve phase is caused to match the target phase, is formed. The electric-motor EDU forms a feedback control loop for the motor speed, in which the electric power supplied to the electric motor is controlled such that the electric motor rotates in accordance with the rotational speed command value.

    摘要翻译: 气门正时控制由控制发动机的ECU和控制电动机的电动机ECU执行。 ECU和电动机EDU具有不同的功能。 ECU根据发动机工作状态设定进气门的目标相位,并为作为致动器的电动机准备转速指令值,使得使进气阀相位成为相位反馈控制回路 匹配目标阶段,形成。 电动机EDU形成用于电动机速度的反馈控制回路,其中控制供给到电动机的电力,使得电动机根据转速指令值旋转。

    Variable valve timing system
    3.
    发明授权
    Variable valve timing system 有权
    可变气门正时系统

    公开(公告)号:US07938088B2

    公开(公告)日:2011-05-10

    申请号:US12159987

    申请日:2007-08-29

    IPC分类号: F01L1/34

    摘要: An ECU transmits a pulsed operation command signal, indicating operation commands for an electric motor used as a VVT actuator, to an electric-motor EDU. The electric-motor EDU recognizes the combination of the direction in which the actuator should be operated (actuator operation direction) and the control mode based on the duty ratio of the operation command signal, and the rotational speed command value based on the frequency of the operation command signal. The electric-motor EDU controls the electric motor according to the control commands. The duty ratio indicating the combination is set such that even if the duty ratio is falsely recognized, a false recognition concerning the actuator operation direction is prevented, such false recognition causing the valve phase to change in an undesirable direction, and even if the actuator operation direction is falsely recognized, the rate of change in the phase is restricted.

    摘要翻译: ECU向电动机EDU发送用于指示用作VVT致动器的电动机的操作命令的脉冲操作指令信号。 电动机EDU基于操作指令信号的占空比和转速指令值,识别执行器应该被操作的方向(致动器操作方向)与控制模式的组合, 操作指令信号。 电动机EDU根据控制指令控制电动机。 设定表示组合的占空比,使得即使占空比被错误识别,也可以防止对致动器操作方向的错误识别,这种错误识别导致阀相在不期望的方向上变化,并且即使致动器操作 方向被错误地认定,阶段的变化率受到限制。

    VARIABLE VALVE TIMING SYSTEM
    4.
    发明申请
    VARIABLE VALVE TIMING SYSTEM 有权
    可变阀门时序系统

    公开(公告)号:US20100012061A1

    公开(公告)日:2010-01-21

    申请号:US12438955

    申请日:2007-08-29

    IPC分类号: F01L1/34 G05B11/32

    摘要: A valve timing control is executed by an ECU that controls an engine and an electric-motor ECU that controls an electric motor. The ECU and the electric-motor EDU serve different functions. The ECU sets the target phase of an intake valve based on the engine operating state, and prepares a rotational speed command value for the electric motor that serves as an actuator such that a phase feedback control loop, in which the intake valve phase is caused to match the target phase, is formed. The electric-motor EDU forms a feedback control loop for the motor speed, in which the electric power supplied to the electric motor is controlled such that the electric motor rotates in accordance with the rotational speed command value.

    摘要翻译: 气门正时控制由控制发动机的ECU和控制电动机的电动机ECU执行。 ECU和电动机EDU具有不同的功能。 ECU根据发动机工作状态设定进气门的目标相位,并为作为致动器的电动机准备转速指令值,使得使进气阀相位成为相位反馈控制回路 匹配目标阶段,形成。 电动机EDU形成用于电动机速度的反馈控制回路,其中控制供给到电动机的电力,使得电动机根据转速指令值旋转。

    Variable valve timing apparatus
    5.
    发明授权
    Variable valve timing apparatus 有权
    可变气门正时装置

    公开(公告)号:US07444969B2

    公开(公告)日:2008-11-04

    申请号:US11585200

    申请日:2006-10-24

    IPC分类号: F01L1/34

    CPC分类号: F01L1/34 F01L1/352 F01L1/356

    摘要: In the case where an intake valve has its phase in a first region between a most retarded angle and CA(1), the rotational speed of relative rotation between an output shaft of an electric motor and a sprocket is reduced at a reduction gear ratio R(1) to change the phase of the intake valve. In the case where the intake valve has its phase in a second region between CA(2) and a most advanced angle, the rotational speed of relative rotation is reduced at a reduction gear ratio R(2) to change the phase of the intake valve. As long as the rotational direction of relative rotation is the same, the phase of the intake valve is changed in the same direction for both of the first region between the most retarded angle and CA(1) and the second region between CA(2) and the most advanced angle.

    摘要翻译: 在进气门的相位处于最大延迟角和CA(1)之间的第一区域的情况下,电动机的输出轴与链轮之间的相对旋转速度以减速比R (1)改变进气阀的相位。 在进气门的相位在CA(2)和最高提前角度的第二区域的情况下,相对旋转的转速在减速比R(2)下减小,以改变进气门的相位 。 只要相对旋转的旋转方向相同,进气门的相位在最大延迟角和CA(1)之间的第一区域和CA(2)之间的第二区域的两个方向上沿相同的方向改变, 和最先进的角度。

    Device and method for controlling internal combustion engine
    6.
    发明申请
    Device and method for controlling internal combustion engine 审中-公开
    内燃机控制装置及方法

    公开(公告)号:US20070175427A1

    公开(公告)日:2007-08-02

    申请号:US11698057

    申请日:2007-01-26

    IPC分类号: F01L1/34

    摘要: When an ignition switch is turned off, an ECU executes a program including the steps of: stopping an engine; setting a phase of an intake camshaft (or a phase in which an intake valve opens/closes) to be a maximally retarded phase; advancing the phase of the intake camshaft; detecting the phase of the intake camshaft as based on a number or rotations of an electric motor of an intake VVT mechanism changing the phase of the intake camshaft; and, if the phase detected as based on the number or rotations of the electric motor is advanced to a target phase, stopping changing the phase of the intake camshaft.

    摘要翻译: 当点火开关关闭时,ECU执行程序,包括以下步骤:停止发动机; 将进气凸轮轴(或进气门打开/关闭的相位)设定为最大延迟相位; 推进进气凸轮轴的相位; 基于改变进气凸轮轴的相位的进气VVT机构的电动机的数量或旋转来检测进气凸轮轴的相位; 并且如果基于电动机的数量或旋转检测到的相位前进到目标相位,则停止改变进气凸轮轴的相位。

    Valve characteristic controller and control method for internal combustion engine
    7.
    发明授权
    Valve characteristic controller and control method for internal combustion engine 有权
    内燃机阀门特征控制器及控制方法

    公开(公告)号:US07204215B2

    公开(公告)日:2007-04-17

    申请号:US11257155

    申请日:2005-10-25

    IPC分类号: F01L1/34

    摘要: A valve characteristic controller for an engine including variable valve actuation mechanisms, one for a first valve and another for a second valve, to vary the opening and closing timings of the valves. The controller executes main control to calculate a target timing of the first valve in accordance with an operation state of the engine and has the corresponding variable valve actuation mechanism adjust the timing of the first valve to the target timing. Further, the controller executes sub-control to calculate a target timing of the second valve based on a target valve overlap amount and the actual timing of the first valve and has the corresponding variable valve actuation mechanism adjust the valve timing of the second valve to the target timing. The main control is executed on the one of the two variable valve actuation mechanisms having a lower response speed.

    摘要翻译: 一种用于发动机的阀门特征控制器,其包括可变气门致动机构,一个用于第一阀,另一个用于第二阀,以改变阀的打开和关闭正时。 控制器执行主控制,以根据发动机的操作状态来计算第一阀的目标定时,并且相应的可变气门致动机构将第一阀的定时调节到目标定时。 此外,控制器执行子控制,以基于目标阀重叠量和第一阀的实际正时来计算第二阀的目标正时,并且具有相应的可变阀致动机构将第二阀的气门正时调节为 目标时机。 在具有较低响应速度的两个可变气门致动机构中的一个上执行主控制。

    Air conditioner for vehicle capable of recovering vehicle deceleration energy
    9.
    发明授权
    Air conditioner for vehicle capable of recovering vehicle deceleration energy 有权
    能够回收车辆减速能量的车辆空调

    公开(公告)号:US07100383B2

    公开(公告)日:2006-09-05

    申请号:US10953702

    申请日:2004-09-29

    IPC分类号: B60H1/32 F25B1/00 F25B49/00

    摘要: During the period of deceleration of a vehicle, an air conditioning control unit modifies a target cooling temperature (TEO) of an evaporator to a temperature lower than that before the deceleration by γ ° C. in order to store cold in the evaporator (step S130). When the vehicle comes to rest, the air conditioning control unit sets an upwardly-modified target temperature TEOK, which is a temperature modified toward more or less higher temperatures from the target cooling temperature TEO, and brings a compressor to rest and keeps the resting state of the compressor until a detected temperature TE of an evaporator discharge temperature sensor exceeds TEOK (step S180). Therefore, it is possible to effectively utilize the cold heat stored in the evaporator 6 during the period of deceleration of the vehicle with a good feeling of passengers being maintained while the vehicle is at rest.

    摘要翻译: 在车辆减速期间,空调控制单元将蒸发器的目标冷却温度(TEO)改变为比减速前低的温度为伽马°C,以便在蒸发器中储存冷(步骤S 130)。 当车辆静止时,空调控制单元设定向上修正的目标温度TEOK,其是从目标冷却温度TEO向或多或少的较高温度修改的温度,并且使压缩机静止并保持静止状态 的压缩机直到蒸发器排出温度传感器的检测温度TE超过TEOK(步骤S180)。 因此,能够在车辆静止时保持乘客的良好感觉的车辆的减速期间有效地利用存储在蒸发器6中的冷热。