公开(公告)号：US08826887B2

公开(公告)日：2014-09-09

申请号：US13505654

申请日：2009-12-28

申请人： Kohei Kodama ,  Daisuke Akihisa

发明人： Kohei Kodama ,  Daisuke Akihisa

IPC分类号： F02P5/00 ,  F02D13/02 ,  F02D15/04 ,  F02P5/152

CPC分类号： F02P5/152 ,  F02D13/0238 ,  F02D15/04 ,  Y02T10/12 ,  Y02T10/18 ,  Y02T10/46

摘要： An internal combustion engine provided with a variable compression ratio mechanism able to change a mechanical compression ratio and a variable valve timing mechanism able to control a closing timing of an intake valve. An actual compression ratio and ignition timing in a predetermined standard state after completion of engine warm-up are stored in advance as a reference actual compression ratio and a reference ignition timing. When the engine temperature is low or the intake air temperature is low, at the time of engine high speed operation, the actual compression ratio is made to increase over the reference actual compression ratio, while at the time of engine low speed operation, the ignition timing is made to advance over the reference ignition timing.

摘要翻译： 具有能够改变机械压缩比的可变压缩比机构的内燃机和能够控制进气门的关闭正时的可变气门正时机构。 作为基准实际压缩比和基准点火正时，预先存储在发动机预热结束后的预定标准状态下的实际压缩比和点火正时。 当发动机温度低或进气温度低时，在发动机高速运转时，实际压缩比超过参考实际压缩比而增加，而在发动机低速运转时，点火 使定时在参考点火正时以前进。

公开(公告)号：US20120222653A1

公开(公告)日：2012-09-06

申请号：US13505654

申请日：2009-12-28

申请人： Kohei Kodama ,  Daisuke Akihisa

发明人： Kohei Kodama ,  Daisuke Akihisa

IPC分类号： F02P5/04

CPC分类号： F02P5/152 ,  F02D13/0238 ,  F02D15/04 ,  Y02T10/12 ,  Y02T10/18 ,  Y02T10/46

摘要： An internal combustion engine provided with a variable compression ratio mechanism able to change a mechanical compression ratio and a variable valve timing mechanism able to control a closing timing of an intake valve. An actual compression ratio and ignition timing in a predetermined standard state after completion of engine warm-up are stored in advance as a reference actual compression ratio and a reference ignition timing. When the engine temperature is low or the intake air temperature is low, at the time of engine high speed operation, the actual compression ratio is made to increase over the reference actual compression ratio, while at the time of engine low speed operation, the ignition timing is made to advance over the reference ignition timing.

摘要翻译： 具有能够改变机械压缩比的可变压缩比机构的内燃机和能够控制进气门的关闭正时的可变气门正时机构。 作为基准实际压缩比和基准点火正时，预先存储在发动机预热结束后的预定标准状态下的实际压缩比和点火正时。 当发动机温度低或进气温度低时，在发动机高速运转时，实际压缩比超过参考实际压缩比而增加，而在发动机低速运转时，点火 使定时在参考点火正时以前进。

公开(公告)号：US08671894B2

公开(公告)日：2014-03-18

申请号：US13375106

申请日：2009-06-19

申请人： Kohei Kodama

发明人： Kohei Kodama

IPC分类号： F02B75/04

CPC分类号： F02B75/041 ,  F01L1/02 ,  F01L1/022 ,  F01L1/024 ,  F01L1/026 ,  F01L1/053 ,  F01L2001/0537 ,  F02B67/04 ,  F02B67/06

摘要： A variable compression ratio internal engine including at least two block portions connected to each other and moveable relative to each other so that the compression ratio can be varied. The engine includes an input gear for inputting a rotation output from an output gear to the cam shaft. The input gear and a rotation transmission shaft are constituted to be able to slide relative to each other or the output gear and the rotation transmission shaft are constituted to be able to slide relative to each other in the direction of the movement of the one block portion relative to the other block portion such that the meshing between the input gear and the cam shaft side gear or the meshing between the output gear and the crank shaft side gear is maintained when the one block portion is moved relative to the other block portion.

摘要翻译： 一种可变压缩比内部发动机，其包括彼此连接并可相对于彼此移动的至少两个块部，使得可以改变压缩比。 发动机包括用于输入从输出齿轮到凸轮轴的旋转输出的输入齿轮。 输入齿轮和旋转传递轴被构造成能够相对于彼此滑动或者输出齿轮和旋转传递轴构造成能够在一个块部分的移动方向上相对于彼此滑动 相对于另一个块部分，使得当一个块部分相对于另一个块部分移动时，保持输入齿轮和凸轮轴侧齿轮之间的啮合或输出齿轮与曲轴侧齿轮之间的啮合。

公开(公告)号：US20080104160A1

公开(公告)日：2008-05-01

申请号：US11661375

申请日：2005-04-14

申请人： Kohei Kodama

发明人： Kohei Kodama

IPC分类号： G06F7/485

CPC分类号： G06F1/03 ,  G06F7/483 ,  H03M7/24

摘要： Precision of arithmetic operations on floating-point numbers is improved while also preventing an increase in the amount of processing. A second converter converts an exponent included in an exponent field according to an exponent conversion rule defined in accordance with a function. A storage stores in a table a value obtained by converting a mantissa field according to a mantissa conversion rule defined in accordance with the function. A retrieving unit derives an index of the table, by extracting the most significant 8 bits from the 23 bits constituting the mantissa field. The retrieving unit adds 1 to the mantissa field approximated by the most significant 8 bits so as to derive a second index. A deriving unit derives a tentative return value A and a tentative return value B. Further, the deriving unit interpolates between the tentative return value A and the tentative return value B so as to derive a return value of the function.

摘要翻译： 提高了对浮点数的算术运算精度，同时也防止了处理量的增加。 第二转换器根据根据功能定义的指数转换规则，转换指数字段中包含的指数。 存储器在表中存储根据根据该功能定义的尾数转换规则转换尾数字段获得的值。 检索单元通过从构成尾数字段的23位中提取最高有效8位来导出表的索引。 检索单元对由最高有效8位近似的尾数字段加1，以便导出第二索引。 导出单元导出临时返回值A和暂定返回值B.此外，导出单元在暂定返回值A和暂定返回值B之间插值，以导出函数的返回值。

公开(公告)号：US08694567B2

公开(公告)日：2014-04-08

申请号：US11661375

申请日：2005-04-14

申请人： Kohei Kodama

发明人： Kohei Kodama

IPC分类号： G06F1/02 ,  G06F7/552

CPC分类号： G06F1/03 ,  G06F7/483 ,  H03M7/24

摘要： Precision of arithmetic operations on floating-point numbers is improved while also preventing an increase in the amount of processing. A second converter converts an exponent included in an exponent field according to an exponent conversion rule defined in accordance with a function. A storage stores in a table a value obtained by converting a mantissa field according to a mantissa conversion rule defined in accordance with the function. A retrieving unit derives an index of the table, by extracting the most significant 8 bits from the 23 bits constituting the mantissa field. The retrieving unit adds 1 to the mantissa field approximated by the most significant 8 bits so as to derive a second index. A deriving unit derives a tentative return value A and a tentative return value B. Further, the deriving unit interpolates between the tentative return value A and the tentative return value B so as to derive a return value of the function.

摘要翻译： 提高了对浮点数的算术运算精度，同时也防止了处理量的增加。 第二转换器根据根据功能定义的指数转换规则，转换指数字段中包含的指数。 存储器在表中存储根据根据该功能定义的尾数转换规则转换尾数字段获得的值。 检索单元通过从构成尾数字段的23位中提取最高有效8位来导出表的索引。 检索单元对由最高有效8位近似的尾数字段加1，以便导出第二索引。 导出单元导出临时返回值A和暂定返回值B.此外，导出单元在暂定返回值A和暂定返回值B之间插值，以导出函数的返回值。

公开(公告)号：US20120080012A1

公开(公告)日：2012-04-05

申请号：US13375106

申请日：2009-06-19

申请人： Kohei Kodama

发明人： Kohei Kodama

IPC分类号： F02D15/04

CPC分类号： F02B75/041 ,  F01L1/02 ,  F01L1/022 ,  F01L1/024 ,  F01L1/026 ,  F01L1/053 ,  F01L2001/0537 ,  F02B67/04 ,  F02B67/06

摘要： A variable compression ratio internal engine including at least two block portions connected to each other and moveable relative to each other so that the compression ratio can be varied. The engine includes an input gear for inputting a rotation output from an output gear to the cam shaft. The input gear and a rotation transmission shaft are constituted to be able to slide relative to each other or the output gear and the rotation transmission shaft are constituted to be able to slide relative to each other in the direction of the movement of the one block portion relative to the other block portion such that the meshing between the input gear and the cam shaft side gear or the meshing between the output gear and the crank shaft side gear is maintained when the one block portion is moved relative to the other block portion.

摘要翻译： 一种可变压缩比内部发动机，其包括彼此连接并可相对于彼此移动的至少两个块部，使得可以改变压缩比。 发动机包括用于输入从输出齿轮到凸轮轴的旋转输出的输入齿轮。 输入齿轮和旋转传递轴被构造成能够相对于彼此滑动或者输出齿轮和旋转传递轴构造成能够在一个块部分的移动方向上相对于彼此滑动 相对于另一个块部分，使得当一个块部分相对于另一个块部分移动时，保持输入齿轮和凸轮轴侧齿轮之间的啮合或输出齿轮与曲轴侧齿轮之间的啮合。