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    • 52. 发明申请
    • A METHOD AND APPARATUS FOR DETECTING ENGINE KNOCK
    • 一种用于检测发动机锁的方法和装置
    • WO2007062470A1
    • 2007-06-07
    • PCT/AU2006/001814
    • 2006-11-30
    • THE UNIVERSITY OF QUEENSLANDWENG, Larry, Lin, Feng
    • WENG, Larry, Lin, Feng
    • G01L23/22F02P5/152
    • G01L23/225F02D35/027F02D2200/1002F02P5/152Y02T10/46
    • A an engine management system includes a processor (8) in communication with a memory (10) that contains a program memory (28) containing instructions for the processor to implement a knock detection method. The knock detection method involves firstly sampling a torque sensor (4) that is responsive to an engine crankshaft (5). The torque sensor is sampled a number of times during a combustion stroke of one or more of cylinders (18a,...18d) of the engine (16). The sampled sensor values are processed to calculate a rate of change of the torque signal and knocking is deemed to be indicated in the event of the rate of change exceeding a predetermined value. In a preferred embodiment the processor (8) is further programmed to reduce knocking once it has been detected by adjusting one or more of a number of controllers including a fuel injection controller (34), an ignition controller (12), a throttle controller (13) and an exhaust gas recirculation controller (39).
    • 发动机管理系统包括与存储器(10)通信的处理器(8),所述存储器(10)包含程序存储器(28),所述程序存储器包含用于执行爆震检测方法的所述处理器的指令。 敲击检测方法首先对响应于发动机曲轴(5)的扭矩传感器(4)进行采样。 在发动机(16)的一个或多个气缸(18a,... 18d)的燃烧冲程期间,对转矩传感器进行多次采样。 处理采样的传感器值以计算转矩信号的变化率,并且在变化率超过预定值的情况下认为爆震被指示。 在优选实施例中,处理器(8)进一步被编程为一旦通过调节多个控制器中的一个或多个来检测到爆震,包括燃料喷射控制器(34),点火控制器(12),节气门控制器 13)和废气再循环控制器(39)。
    • 53. 发明申请
    • MEMORY SYSTEM AND METHOD FOR STROBING DATA, COMMAND AND ADDRESS SIGNALS
    • 存储器系统和数据,命令和地址信号的方法
    • WO2006026526A3
    • 2006-05-04
    • PCT/US2005030593
    • 2005-08-26
    • MICRON TECHNOLOGY INCLIN FENGKEETH BRENTJOHNSON BRIANLEE SEONG-HOON
    • LIN FENGKEETH BRENTJOHNSON BRIANLEE SEONG-HOON
    • H04L7/00G06F12/16
    • G11C7/109G11C7/1006G11C7/1078G11C7/1087G11C7/22G11C7/222
    • A memory system couples command, address or write data signals from a memory controller to a memory device and read data signals from the memory device to the memory controller. A respective strobe generator circuit in each of the memory controller and the memory device each generates an in-phase strobe signal and a quadrature strobe signal. Command, address or write data signals stored in respective output latches in the memory controller are clocked by the in-phase signals from the internal strobe generator circuit. These command, address or write data signals are latched into input latches in the memory device by the quadrature strobe signal coupled from the memory controller to the memory device. In substantially the same manner, read data signals are coupled from the memory device to the memory controller using the in-phase and quadrature strobe signals generated by the internal strobe generator circuit.
    • 存储器系统将来自存储器控制器的命令,地址或写入数据信号耦合到存储器设备,并将数据信号从存储器设备读取到存储器控制器。 存储器控制器和存储器设备中的每一个中的相应选通脉冲发生器电路均产生同相选通信号和正交选通信号。 存储在存储器控制器中的各个输出锁存器中的命令,地址或写入数据信号由来自内部选通脉冲发生器电路的同相信号计时。 这些命令,地址或写入数据信号被从存储器控制器耦合到存储器装置的正交选通信号锁存到存储器装置中的输入锁存器中。 以基本上相同的方式,使用内部选通脉冲发生器电路产生的同相和正交选通信号将读取数据信号从存储器装置耦合到存储器控制器。
    • 59. 发明申请
    • FLYBACK PRIMARY SIDE OUTPUT VOLTAGE SENSING SYSTEM AND METHOD
    • FLYBACK主输出电压传感系统及方法
    • WO2012078682A1
    • 2012-06-14
    • PCT/US2011/063606
    • 2011-12-06
    • SEMTECH CORPORATIONLIN, Feng
    • LIN, Feng
    • H02M7/5395
    • H02M3/33507
    • A method and apparatus of primary side output voltage sensing for a flyback power converter preserves secondary-side tranformer isolation without the use of opto-isolators and does not require multiple high-speed sample and hold circuits. A timing circuit measures the duration of the diode conduction interval during a first PWM control cycle and applies this measurement to set the voltage sampling time of the feedback loop during the next PWM cycle. The voltage sampling time for the next PWM cycle is configurable and may be set to occur near the middle of the diode conduction interval or near the end of the diode conduction interval. The cycle-to-cycle PWM duty cycle adjustment step size may be limited to ensure that the diode conduction interval does not vary substantially from cycle to cycle.
    • 用于反激式功率转换器的初级侧输出电压感测的方法和装置在不使用光隔离器的情况下保持次级侧变压器隔离,并且不需要多个高速采样和保持电路。 定时电路测量第一个PWM控制周期期间二极管导通间隔的持续时间,并应用该测量设置下一个PWM周期期间反馈回路的电压采样时间。 下一个PWM周期的电压采样时间是可配置的,并且可以设置为在二极管导通间隔的中间附近或接近二极管导通间隔的末端。 可以限制周期到周期的PWM占空比调节步长,以确保二极管导通间隔在周期之间不显着变化。