Patents by Inventor Yoshio Yamashita
Yoshio Yamashita has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20150354475Abstract: An internal combustion engine includes a control unit determining the occurrence or non-occurrence of dew condensation in a tip portion of a nozzle based on a nozzle heat receiving amount of an injector and a nozzle tip temperature of the injector at a point in time when ignition is turned OFF and performing nozzle corrosion prevention control when the dew condensation is determined to occur in the nozzle tip portion. The control unit calculates a nozzle tip temperature reduction rate based on the nozzle heat receiving amount, calculates a dew point arrival time based on the reduction rate, and determines the occurrence or non-occurrence of the dew condensation in the nozzle tip portion based on the dew point arrival time.Type: ApplicationFiled: January 15, 2014Publication date: December 10, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masato IKEMOTO, Masayoshi NAKAGAWA, Takashi MATSUMOTO, Yoshio YAMASHITA
-
Publication number: 20150027387Abstract: The influenced of condensed water on an EGR device is alleviated. A device (100) that controls a cooling system including adjusting means for being able to adjust a circulation amount of coolant in a first flow passage, including an engine cooling flow passage, an EGR cooling flow passage and a radiator flow passage, and a second flow passage, including the engine cooling flow passage, the EGR cooling flow passage and a bypass flow passage and not including the radiator flow passage, includes: measuring means for measuring a temperature of the coolant; limiting means for limiting circulation of the coolant at starting an internal combustion engine; and control means for circulating the coolant preferentially through the second flow passage via control over the adjusting means based on the Measured temperature in a period in which circulation of the coolant is limited.Type: ApplicationFiled: December 19, 2011Publication date: January 29, 2015Inventors: Nobumoto Ohashi, Taro Aoyama, Naoya Okamoto, Yoshio Yamashita, Yuki Haba, Hajime Takagawa, Koki Uno, Naoki Takeuchi, Masashi Shinoda, Teruhiko Miyake, Koji Nakayama
-
Publication number: 20140330542Abstract: A computer-based method and system brings together data from two business domains: real-time actual plant status operation data and predictive process simulation data based upon a design specification. This method and system correlates the plant data and the simulation data, and displays the results side-by-side for the user. The results assist the user, to determine whether the plant is operating properly, and to make further improvements to both the plant assets and to the simulation models. The invention assists with monitoring, maintaining, trouble shooting, and problem solving of plant operation. The invention facilitates a progressive visual collaborative environment between plant operation and process engineering teams, where engineers from respective domains may socialize and trouble shoot problems.Type: ApplicationFiled: May 2, 2013Publication date: November 6, 2014Applicant: Aspen Technology, Inc.Inventors: Ashok R. Subramanian, Simon Lingard, Yoshio Yamashita
-
Patent number: 8813493Abstract: A supercharger control device for an internal combustion engine is preferably applied to a system having a first supercharger and a second supercharger. A switching supercharging pressure setting unit sets a switching supercharging pressure used in case of switching a mode for operating the first supercharger and the second supercharger, based on a difference between a target supercharging pressure and an actual supercharging pressure. When the actual supercharging pressure reaches the switching supercharging pressure, a switching control unit performs a control of switching the mode. Therefore, it becomes possible to appropriately prevent the overshoot of the supercharging pressure at the time of switching the mode.Type: GrantFiled: December 11, 2008Date of Patent: August 26, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kazuki Iwatani, Taro Aoyama, Yoshio Yamashita, Hiroshi Oyagi
-
Patent number: 8763396Abstract: In a vehicle, which is provided with: a primary turbo and a secondary turbo, each of which is of an exhaust driven type; an exhaust changeover valve and an intake changeover valve, which are placed in a secondary exhaust passage and a secondary intake passage corresponding to the secondary turbo, respectively; and an intake bypass valve placed in an intake bypass passage, an ECU sets the opening/closing state of each changeover valve to an opening/closing state corresponding to a twin turbo mode at the time of engine stop, and it uses the drive control of each changeover valve which is necessitated in the transition to a single turbo mode at the engine start, thereby performing the sticking detection of the changeover valve at the same time.Type: GrantFiled: January 26, 2009Date of Patent: July 1, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroshi Oyagi, Yoshio Yamashita, Kazuki Iwatani, Taro Aoyama
-
Patent number: 8297407Abstract: An oil pan is provided with an oil pan separator that partitions a first chamber that communicates with a moving part inside a cylinder block and a second chamber outside the first chamber. A communicating hole is provided to a bottom panel of the oil pan separator. The communicating hole is shielded from a strainer.Type: GrantFiled: October 21, 2011Date of Patent: October 30, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Taiichi Mori, Hideo Kobayashi, Katuhiko Arisawa, Kenichi Yamada, Yoshio Yamashita, Kunihiko Hayashi
-
Patent number: 8161920Abstract: In the cylinder block of an engine including a heat storage apparatus, a water jacket is formed between a cylinder bore wall that forms a cylinder bore and a cylinder block outer wall. An actuator is installed on the cylinder block outer wall. A container is housed in the water jacket. A coolant temperature sensor is installed on the upper portion of the container. An ECU determines the state of a heat storage agent in the container and the state of the container, based on information on the temperature of coolant determined by the coolant temperature sensor.Type: GrantFiled: June 4, 2007Date of Patent: April 24, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kunihiko Hayashi, Hideo Kobayashi, Katuhiko Arisawa, Yoshio Yamashita, Kenichi Yamada
-
Publication number: 20120037456Abstract: An oil pan is provided with an oil pan separator that partitions a first chamber that communicates with a moving part inside a cylinder block and a second chamber outside the first chamber. A communicating hole is provided to a bottom panel of the oil pan separator. The communicating hole is shielded from a strainer.Type: ApplicationFiled: October 21, 2011Publication date: February 16, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Taiichi Mori, Hideo Kobayashi, Katuhiko Arisawa, Kenichi Yamada, Yoshio Yamashita, Kunihiko Hayashi
-
Publication number: 20110289919Abstract: The subject is to efficiently detect the sticking of changeover valves for realizing a plurality of supercharging modes in a vehicle provided with a plurality of superchargers, and also to realize preferable fail-safe in cases where the sticking is detected. In a vehicle, which is provided with: a primary turbo and a secondary turbo, each of which is of an exhaust driven type; an exhaust changeover valve and an intake changeover valve, which are placed in a secondary exhaust passage and a secondary intake passage corresponding to the secondary turbo, respectively; and an intake bypass valve placed in an intake bypass passage, an ECU sets the opening/closing state of each changeover valve to an opening/closing state corresponding to a twin turbo mode at the time of engine stop, and it uses the drive control of each changeover valve which is necessitated in the transition to a single turbo mode at the engine start, thereby performing the sticking detection of the changeover valve at the same time.Type: ApplicationFiled: January 26, 2009Publication date: December 1, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi Oyagi, Yoshio Yamashita, Kazuki Iwatani, Taro Aoyama
-
Patent number: 8066100Abstract: An oil pan is provided with an oil pan separator that partitions a first chamber that communicates with a moving part inside a cylinder block and a second chamber outside the first chamber. A communicating hole is provided to a bottom panel of the oil pan separator. The communicating hole is shielded from a strainer.Type: GrantFiled: October 5, 2005Date of Patent: November 29, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Taiichi Mori, Hideo Kobayashi, Katuhiko Arisawa, Kenichi Yamada, Yoshio Yamashita, Kunihiko Hayashi
-
Patent number: 8037851Abstract: A heat accumulator (1) is formed by connecting a first container (4) and a second container (5) using a spring (6). The first container (4) has a wall-shaped inner side wall that corresponds to the shape of a cylinder bore wall (7). Provided on this inner side wall is a flexible structural part (8). The flexible structural part (8) is formed of highly elastic resin. The second container (5) has a similar structure. A heat storage medium within the first container (4) and the second container (5) absorbs heat, which generates a change of phase from a solid to a liquid. When this happens, the volume of the heat storage medium increases. The increase in the heat storage medium projects the flexible structural part (8), and separates the first container (4) and the second container (5) from the cylinder bore wall (7).Type: GrantFiled: February 8, 2007Date of Patent: October 18, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hideo Kobayashi, Katuhiko Arisawa, Kenichi Yamada, Yoshio Yamashita, Kunihiko Hayashi
-
Patent number: 8020666Abstract: An oil pan separator 132 is disposed so as to divide a space within an oil pan 130 into a first chamber 30a and a second chamber 30b. The oil pan separator 132 has a protrusion 132b formed at a low position in such a manner that a portion of the first chamber 30a protrudes into the second chamber 30b. A protrusion upper-plate 132b1, which serves as an upper end portion of the protrusion 132b, is provided with an oil feed valve 138, which is a one-way valve, for allowing substantially only outflow of oil from the first chamber 30a to the second chamber 30b.Type: GrantFiled: February 7, 2007Date of Patent: September 20, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yoshio Yamashita, Hideo Kobayashi, Katuhiko Arisawa, Kenichi Yamada, Kunihiko Hayashi, Taiithi Mori
-
Publication number: 20110146634Abstract: A supercharger control device for an internal combustion engine is preferably applied to a system having a first supercharger and a second supercharger. A switching supercharging pressure setting unit sets a switching supercharging pressure used in case of switching a mode for operating the first supercharger and the second supercharger, based on a difference between a target supercharging pressure and an actual supercharging pressure. When the actual supercharging pressure reaches the switching supercharging pressure, a switching control unit performs a control of switching the mode. Therefore, it becomes possible to appropriately prevent the overshoot of the supercharging pressure at the time of switching the mode.Type: ApplicationFiled: December 11, 2008Publication date: June 23, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuki Iwatani, Taro Aoyama, Yoshio Yamashita, Hiroshi Oyagi
-
Patent number: 7946388Abstract: An oil temperature sensor is externally mounted on a side plate of an oil pan cover that constitutes an external cover for an oil pan apparatus. The oil temperature sensor can output a signal in accordance with the oil temperature prevailing near a thermostat valve apparatus in a second chamber. If the second chamber oil temperature rises immediately after startup of an engine, a CPU judges that an open valve failure has occurred, that is, the thermostat valve apparatus is stuck open. If the oil temperature of the second chamber is not raised when an adequate amount of time has elapsed after the end of a warm-up operation, the CPU judges that a closed valve failure has occurred, that is, the thermostat valve apparatus is stuck closed.Type: GrantFiled: January 16, 2006Date of Patent: May 24, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hideo Kobayashi, Katuhiko Arisawa, Yoshio Yamashita, Kunihiko Hayashi
-
Patent number: 7819093Abstract: A hydraulic control apparatus (1) is provided with an oil pump (4) that draws oil from an oil pan (3) due to the rotation of the crankshaft, a piston jet (6) that open when the hydraulic pressure of the oil that has been drawn from this oil pump (4) attains a valve opening pressure Qa and injects oil toward a piston through an oil injection path (5), a relief valve (8) that is disposed on an oil return path (7) and opens when the hydraulic pressure of the oil that has been drawn by the oil pump (4) has attained a valve opening pressure Qb, and a switching valve (9) that is disposed on the oil return path (7). The valve opening pressure Qb is set to a pressure that is lower than that of the valve opening pressure Qa.Type: GrantFiled: October 13, 2006Date of Patent: October 26, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yoshio Yamashita, Hideo Kobayashi, Katuhiko Arisawa, Kenichi Yamada, Kunihiko Hayashi
-
Publication number: 20100162972Abstract: In the cylinder block of an engine including a heat storage apparatus, a water jacket is formed between a cylinder bore wall that forms a cylinder bore and a cylinder block outer wall. An actuator is installed on the cylinder block outer wall. A container is housed in the water jacket. A coolant temperature sensor is installed on the upper portion of the container. An ECU determines the state of a heat storage agent in the container and the state of the container, based on information on the temperature of coolant determined by the coolant temperature sensor.Type: ApplicationFiled: June 4, 2007Publication date: July 1, 2010Inventors: Kunihiko Hayashi, Hideo Kobayashi, Fatuhiko Arisawa, Yoshio Yamashita, Kenichi Yamada
-
Patent number: 7654241Abstract: A dual-chamber oil pan includes an oil pan provided below an engine block, an oil pan separator that is provided within the oil pan and defines a first chamber communicating with the engine block, and a second chamber provided around the first chamber, and a suction port disposed within the first chamber. The first chamber includes a large-capacity portion including a bottom portion of the oil pan separator, and a small-capacity portion located above and integrally formed with the large-capacity portion.Type: GrantFiled: March 6, 2006Date of Patent: February 2, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hideo Kobayashi, Katuhiko Arisawa, Yoshio Yamashita, Kunihiko Hayashi, Tametoshi Mizuta
-
Patent number: 7647900Abstract: An engine cooling apparatus includes a coolant inlet of a block water jacket formed in a cylinder block, wherein coolant is introduced into the block water jacket through the coolant inlet, a flow-directing plate that is disposed in the block water jacket at a position downstream of the coolant inlet, and that directs the coolant, which has been introduced into the block water jacket through the coolant inlet, toward a head water jacket and a control portion that controls inflow of the coolant from the head water jacket into the block water jacket.Type: GrantFiled: June 4, 2007Date of Patent: January 19, 2010Assignee: Toyota Jidosha Kabuhsiki KaishaInventors: Kunihiko Hayashi, Hideo Kobayashi, Katuhiko Arisawa, Kenichi Yamada, Yoshio Yamashita
-
Publication number: 20090229561Abstract: A hydraulic control apparatus (1) is provided with an oil pump (4) that draws oil from an oil pan (3) due to the rotation of the crankshaft, a piston jet (6) that open when the hydraulic pressure of the oil that has been drawn from this oil pump (4) attains a valve opening pressure Qa and injects oil toward a piston through an oil injection path (5), a relief valve (8) that is disposed on an oil return path (7) and opens when the hydraulic pressure of the oil that has been drawn by the oil pump (4) has attained a valve opening pressure Qb, and a switching valve (9) that is disposed on the oil return path (7). The valve opening pressure Qb is set to a pressure that is lower than that of the valve opening pressure Qa.Type: ApplicationFiled: October 13, 2006Publication date: September 17, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshio Yamashita, Hideo Kobayashi, Katuhiko Arisawa, Kenichi Yamada, Kunihiko Hayashi
-
Patent number: 7590559Abstract: This invention provides an information processing system which executes settlement processing for a plurality of orders all at once. To implement this system, an estimated amount is calculated by estimate calculation modules (115A-115C) for each order received at a printsite (113). A plurality of calculated estimated amounts are received by a photosite (107) and totalized to calculate the charge amount, and charge amount settlement is requested.Type: GrantFiled: September 26, 2002Date of Patent: September 15, 2009Assignee: Canon Kabushiki KaishaInventors: Katsuhisa Ogawa, Yoshio Yamashita