公开(公告)号：US06246951B1

公开(公告)日：2001-06-12

申请号：US09306332

申请日：1999-05-06

申请人： Jerry Dean Robichaux ,  Tobias John Pallett

发明人： Jerry Dean Robichaux ,  Tobias John Pallett

IPC分类号： G06F1578

CPC分类号： F02D11/105 ,  F02B2275/32 ,  F02D2200/703 ,  Y02T10/142

摘要： A system and method for controlling a powertrain including an internal combustion engine include generating a signal indicative of driver requested engine output, generating a signal indicative of current vehicle speed, determining a reference engine output parameter based on the driver requested engine output signal and the signal indicative of current vehicle speed, determining a value indicative of current barometric pressure, modifying the reference engine output parameter based on the value indicative of current barometric pressure, and controlling the engine based on the modified reference parameter. In one embodiment, the invention adjusts a base driver demanded torque based on barometric pressure to preserve full pedal travel and prevent “dead pedal” feel when operating the vehicle at high altitudes and maximum engine torque output. As such, the accelerator pedal position is interpreted as a request for a portion or percentage of the currently available engine torque or power which varies as a function of the barometric pressure.

摘要翻译： 用于控制包括内燃机的动力系统的系统和方法包括产生指示驾驶员所要求的发动机输出的信号，产生指示当前车辆速度的信号，基于驾驶员所要求的发动机输出信号和信号来确定参考发动机输出参数 指示当前车速，确定表示当前大气压力的值，基于表示当前气压的值修改参考发动机输出参数，以及基于修改的参考参数来控制发动机。 在一个实施例中，本发明基于气压来调整基座驾驶员所需扭矩以保持全踏板行程，并且在高海拔地区操作车辆和最大发动机转矩输出时防止“死板踏板”感觉。 因此，加速器踏板位置被解释为对当前可用的发动机扭矩或功率的一部分或百分比的要求，其作为大气压力的函数而变化。

公开(公告)号：US06766438B1

公开(公告)日：2004-07-20

申请号：US09674352

申请日：2000-10-30

申请人： Peter Haas

发明人： Peter Haas

IPC分类号： G06F1578

CPC分类号： G06F11/364 ,  G06F11/348

摘要： The present invention provides a RISC processor with a debug interface unit that enables the external replication of the data processing sequence within a RISC processor for debug purposes. The data exchanged between the sequence controller and the instruction decoder are intermediately stored and forwarded via a free bus line to an interface unit. In the interface unit, the data pending at its inputs are forwarded to defined outputs of the interface. This allows the register contents to be co-read in real time. Accordingly, all the required information to perform an efficient error search are displayed for an outside operator who may then monitor the data processing sequence and conduct an error search.

摘要翻译： 本发明提供了具有调试接口单元的RISC处理器，其能够在RISC处理器内部进行数据处理序列的外部复制以用于调试目的。 在序列控制器和指令解码器之间交换的数据经由自由总线中间存储和转发到接口单元。 在接口单元中，其输入中待处理的数据将转发到接口的定义输出。 这允许寄存器内容被实时地共同读取。 因此，为外部操作者显示执行有效的错误搜索的所有所需信息，然后可以监视数据处理序列并进行错误搜索。

公开(公告)号：US06286065B1

公开(公告)日：2001-09-04

申请号：US09193847

申请日：1998-11-18

申请人： Hideyuki Suzuki

发明人： Hideyuki Suzuki

IPC分类号： G06F1578

CPC分类号： G06F15/7832

摘要： The present invention provides a microcomputer having a built-in A/D converter circuit and sharing an external terminal with an input terminal of the A/D converter so as to reduce the size and weight of the semiconductor integrated circuit, wherein a resistor is inserted to eliminate deterioration of the A/D converter circuit due to the reduction in the number of the terminals.

摘要翻译： 本发明提供了一种具有内置A / D转换器电路并且与A / D转换器的输入端共享外部端子以便减小半导体集成电路的尺寸和重量的微计算机，其中插入电阻器 以消除由于端子数量的减少导致的A / D转换器电路的劣化。

公开(公告)号：US06691216B2

公开(公告)日：2004-02-10

申请号：US10004492

申请日：2001-10-24

申请人： Kenneth C. Kelly ,  Irvinderpal S. Ghai ,  Jay B. Reimer ,  Tai Huu Nguyen ,  Harland Glenn Hopkins ,  Yi Luo ,  Jason A. T. Jones ,  Dan K. Bui ,  Patrick J. Smith ,  Kevin A. McGonagle

发明人： Kenneth C. Kelly ,  Irvinderpal S. Ghai ,  Jay B. Reimer ,  Tai Huu Nguyen ,  Harland Glenn Hopkins ,  Yi Luo ,  Jason A. T. Jones ,  Dan K. Bui ,  Patrick J. Smith ,  Kevin A. McGonagle

IPC分类号： G06F1578

CPC分类号： G06F9/3802 ,  G06F9/3877 ,  G06F9/3879 ,  G06F9/3891 ,  G06F15/786 ,  Y02D10/13

摘要： A multi-core DSP device includes a shared program memory to eliminate redundancy and thereby reduce the size and power consumption of the DSP device. Because each of the program cores typically executes the same software program, memory requirements may be reduced by having multiple processor cores share only a single copy of the software. Accordingly, a program memory couples to each of the processor cores by a corresponding instruction bus. Preferably the program memory services two or more instruction requests in each clock cycle. Data is preferably stored in separate memory arrays local to the processor core subsystems and accessible by the processor cores via a dedicated data bus. In one specific implementation, the program memory includes a wrapper that can perform one memory access in the first half of each clock cycle and a second memory access in the second half of each clock cycle. A designated set of instruction buses is allowed to arbitrate for only the first access, and the remaining instruction buses are allowed to arbitrate for only the second access. In this manner, a reduction in on-board memory requirements and associated power consumption may be advantageously reduced.

摘要翻译： 多核DSP设备包括共享程序存储器以消除冗余，从而减小DSP设备的尺寸和功耗。 由于每个程序内核通常执行相同的软件程序，因此可以通过使多个处理器核心共享该软件的单个副本来减少内存需求。 因此，程序存储器通过相应的指令总线耦合到每个处理器核心。 优选地，程序存储器在每个时钟周期中服务两个或更多个指令请求。 数据优选地存储在处理器核心子系统本地的分开的存储器阵列中，并且可经由专用数据总线由处理器核心访问。 在一个具体实现中，程序存储器包括一个包装器，其可以在每个时钟周期的前半部分中执行一个存储器访问，并且在每个时钟周期的后半部分中执行第二存储器访问。 允许指定的一组指令总线仅对第一次访问进行仲裁，并且允许剩余的指令总线仅对第二次访问进行仲裁。 以这种方式，可以有利地减少车载存储器要求的降低和相关联的功率消耗。

公开(公告)号：US06366847B1

公开(公告)日：2002-04-02

申请号：US09649780

申请日：2000-08-29

申请人： Jing Sun ,  Narayanan Sivashankar

发明人： Jing Sun ,  Narayanan Sivashankar

IPC分类号： G06F1578

CPC分类号： F02D41/18 ,  F01P2025/13 ,  F02D2041/389 ,  F02D2200/0404 ,  F02D2200/1004 ,  F02D2200/704

摘要： A method of continuously estimating barometric pressure values for use in an engine control system. The vehicle includes an manifold absolute pressure (MAP) sensor, ambient air temperature sensor and a throttle position sensor. The method comprises the steps of determining the manifold absolute pressure, ambient air temperature, and throttle position. When the throttle position is at wide-open throttle, the method generates a barometric pressure value ({circumflex over (P)}anew) as a function of the manifold absolute pressure value (P) and previously estimated barometric pressure. Otherwise, the method generates a barometric pressure value as a function of the manifold absolute pressure value (P), and an estimated intake manifold pressure ({circumflex over (P)}) and estimated mass airflow (). In a further embodiment, a mass airflow sensor is also used to generate the estimated barometric pressure value when the engine is not operating at wide-open throttle.

摘要翻译： 一种连续估计用于发动机控制系统的大气压力值的方法。 车辆包括歧管绝对压力（MAP）传感器，环境空气温度传感器和节气门位置传感器。 该方法包括确定歧管绝对压力，环境空气温度和节气门位置的步骤。 当节气门位置处于大开口节气门时，该方法根据歧管绝对压力值（P）和先前估计的气压值产生大气压力值（（（P）}）。 否则，该方法产生作为歧管绝对压力值（P）的函数的大气压力值和估计的进气歧管压力（{回旋（P）}）和估计的质量气流（）。 在另一个实施例中，当发动机不在大开口节气门下操作时，质量气流传感器也用于产生估计的气压值。

公开(公告)号：US06779102B2

公开(公告)日：2004-08-17

申请号：US09886267

申请日：2001-06-22

申请人： Tadahiko Nishimukai ,  Atsushi Hasegawa ,  Kunio Uchiyama ,  Ikuya Kawasaki ,  Makoto Hanawa

发明人： Tadahiko Nishimukai ,  Atsushi Hasegawa ,  Kunio Uchiyama ,  Ikuya Kawasaki ,  Makoto Hanawa

IPC分类号： G06F1578

CPC分类号： G06F9/30047 ,  G06F9/30043 ,  G06F9/3802 ,  G06F9/3824 ,  G06F12/0848 ,  G06F12/0891

摘要： A data processor formed on a LSI chip has an instruction address generator, an instruction cache memory having entries each storing an instruction address and an instruction corresponding to the instruction address, an instruction decoder decoding an instruction from said cache memory corresponding to an instruction address from said instruction address generator, an operand address generator generating an operand address in response to an output signal of said instruction decoder, and an operand cache memory having entries each storing an operand address and operand data corresponding to the operand address in its entry. The data processor executes an instruction that makes entries in both of said instruction cache memory and said operand cache memory ineffective.

摘要翻译： 形成在LSI芯片上的数据处理器具有指令地址发生器，指令高速缓冲存储器，其具有各自存储指令地址的条目和与该指令地址对应的指令，指令译码器从对应于指令地址的所述高速缓冲存储器解码指令 所述指令地址生成器，响应于所述指令解码器的输出信号产生操作数地址的操作数地址生成器和具有条目的操作数高速缓存存储器，每个存储操作数地址和对应于其操作数地址的操作数数据。 数据处理器执行使得在所述指令高速缓冲存储器和所述操作数高速缓冲存储器两者中的条目无效的指令。

公开(公告)号：US06189094B1

公开(公告)日：2001-02-13

申请号：US09085752

申请日：1998-05-27

申请人： Christopher Neal Hinds ,  David Vivian Jaggar ,  David Terrence Matheny ,  David James Seal

发明人： Christopher Neal Hinds ,  David Vivian Jaggar ,  David Terrence Matheny ,  David James Seal

IPC分类号： G06F1578

CPC分类号： G06F9/3861 ,  G06F9/30014 ,  G06F9/3836 ,  G06F9/3838 ,  G06F9/3857 ,  G06F9/3867

摘要： A floating point unit having a register bank containing a plurality of registers supports vector operations that execute a specified operation a plurality of times upon a sequence of data values form different registers. The register bank is divided into subsets and with the sequence of registers used in a vector operation wrapping within a subset. The subsets comprise disjoint, contiguous ranges of register numbers. The wrapping within ranges allows compact code and efficient to be provided for performing DSP operations, such as FIR filtering and matrix transformations.

摘要翻译： 具有包含多个寄存器的寄存器组的浮点单元支持在数据值序列形成不同寄存器时多次执行指定操作的向量操作。 寄存器组被划分为子集以及在子集中的矢量操作中使用的寄存器序列。 子集包括不相交的寄存器编号的连续范围。 范围内的包装允许紧凑的代码和有效的提供用于执行DSP操作，如FIR滤波和矩阵转换。