Patents Assigned to Bosch Corporation
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Patent number: 11981210Abstract: A controller for a hybrid vehicle capable of making a first control rule and a second control rule cooperate with each other is provided. In the first control rule, a gear ratio is controlled such that output from an internal combustion engine via a transmission satisfies requested drive power. In the second control rule, the gear ratio is controlled such that a sum of drive power by a motor and drive power by the internal combustion engine becomes the requested drive power.Type: GrantFiled: June 26, 2019Date of Patent: May 14, 2024Assignees: Bosch Corporation, Robert Bosch GmbHInventors: Masashi Yukawa, Bryan Mani, Michael Just
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Patent number: 11964587Abstract: The present invention provides a power control device for a hybrid vehicle that can allow power generation by a generator connected to a low-voltage battery regardless of a charging rate of the low-voltage battery. The hybrid vehicle includes: a motor (21) that can be coupled to a drive wheel (18) of the vehicle; a generator (22) that can be coupled to an internal combustion engine (11); a first secondary battery (21) connected to the motor (21); a second secondary battery (32) that is connected to the generator (22), and a voltage of which is lower than that of the first secondary battery (31); and a converter (33) that steps up a DC voltage received from the second secondary battery (32) and can output the stepped-up DC voltage to the first secondary battery (31).Type: GrantFiled: May 30, 2019Date of Patent: April 23, 2024Assignee: Bosch CorporationInventor: Masashi Yukawa
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Patent number: 11815057Abstract: The present invention provides a fuel injector capable of suppressing separation of a fuel flow in an injection port during fuel injection. A fuel injector (30) includes plural injection ports (31a to 31f), each of which injects the fuel into an internal combustion engine (10). The plural injection ports (31a to 31f) are provided in plural on a first circle with a first radius (R1) and on a second circle with a larger second radius (R2) than the first radius (R1), and includes: a first injection port (31a), a center of an opening of which is provided on the first circle; and a second injection port (31c), a center of an opening of which is provided on the second circle on an opposite side of a tangent of the first circle, which passes the center of the opening of the first injection port, from a center axis (CF1) of the fuel injector (30).Type: GrantFiled: August 6, 2020Date of Patent: November 14, 2023Assignees: Bosch Corporation, Robert Bosch GmbHInventors: Yuichiro Goto, Jing Yang, Vinzenz Neubert
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Patent number: 11035275Abstract: The present invention provides a heater control device and a heater control method capable of suppressing a maximum value of a current flowing through a current supply circuit to a heater in a reducing agent supplier. The heater control device is a heater control device including: a tank heater for heating a reducing agent stored in a tank; and a piping heater for heating the reducing agent in a flow channel including a supply channel, and includes: a first current supply circuit that supplies a current to the tank heater; a second current supply circuit that supplies a current to the piping heater; a common current supply circuit that connects between a battery and each of the first current supply circuit and the second current supply circuit; and a heater control unit that controls driving of the tank heater and the piping heater.Type: GrantFiled: November 7, 2017Date of Patent: June 15, 2021Assignee: Bosch CorporationInventors: Keisuke Sakuma, Keijiro Ozaki, Eiichi Kitazawa, Masahiro Yamaguchi
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Patent number: 11022056Abstract: A vehicle control device is capable of securing engine output torque even in a case where a switching operation is performed between a first shift position and a second shift position, both of which are in an in-gear state. The vehicle control device is capable of performing a mutual switching operation between the first shift position and the second shift position, at both of which a power transmission system is in the in-gear state, and includes: a shift-position detecting section that detects a selected shift position; and a torque reserve control section that executes torque reserve control to increase output torque of an engine when a shift switching operation is performed between the first shift position and the second shift position.Type: GrantFiled: August 30, 2017Date of Patent: June 1, 2021Assignee: Bosch CorporationInventors: Tomohiro Shimura, Yuta Takimoto
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Patent number: 10458358Abstract: The invention realizes fuel microinjection volume correction with high degrees of accuracy, stability, and reliability regardless of a configuration of a transmission.Type: GrantFiled: February 9, 2017Date of Patent: October 29, 2019Assignee: Bosch CorporationInventors: Atsushi Hoshino, Shouta Tashiro
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Patent number: 10240504Abstract: An amount of electric power consumption by a battery is reduced, and deterioration of a coil is suppressed by efficiently heating an injector and melting urea crystals at an early stage. A control device for a reducing agent injection device fills the device with a reducing agent at a start-up of an internal combustion engine and executes control for injecting the reducing agent into an exhaust passage of the internal combustion engine by the injector. The control device includes an energization control section that executes energization control in which, after an exhaust temperature of the internal combustion engine becomes equal to or higher than a specified threshold value, a temperature of the injector is increased by energizing the coil of the injector for a specified time and melting of the crystals of the reducing agent precipitated in the injector is promoted.Type: GrantFiled: September 30, 2015Date of Patent: March 26, 2019Assignee: Bosch CorporationInventors: Eiji Nakao, Fumiyasu Kurogi, Akira Kunishima, Atsushi Kikuchi, Hiroyuki Watanabe, Syogo Tashiro, Wataru Domon
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Patent number: 10138793Abstract: An exhaust gas purification system capable of preventing clogging of a reducing agent injection valve due to solidified urea aqueous solution to prevent a decrease in the exhaust gas purification efficiency of an internal-combustion engine. The exhaust gas purification system includes a diesel particulate filter, a reducing agent injection valve and an SCR catalyst in this order from the exhaust upstream side. A condition satisfaction determination section determines whether or not urea aqueous solution is likely to be solidified when detecting that an ignition switch is turned off, and an internal-combustion engine stop prevention section prevents the internal-combustion engine from being stopped, based on a determination by the condition satisfaction determination section.Type: GrantFiled: July 30, 2015Date of Patent: November 27, 2018Assignee: Bosch CorporationInventors: Masanori Watanabe, Takeshi Miyamoto, Fumiyasu Kurogi
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Patent number: 10113744Abstract: A ceramic heater-type glow plug that includes a ceramic heater, and a metallic outer cylinder, one end side of which holds the ceramic heater and the other end side of which is inserted in and fixed to an inner hole of a housing.Type: GrantFiled: March 9, 2015Date of Patent: October 30, 2018Assignee: Bosch CorporationInventor: Katsumi Takatsu
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Patent number: 10052588Abstract: A control apparatus that includes a measured NOx purification ratio calculation unit calculating a measured NOx purification ratio of a reduction catalyst based on outputs of NOx sensors and provided upstream and downstream of the reduction catalyst reducing nitrogen oxide in an exhaust gas, an estimated NOx purification ratio calculation unit calculating an estimated NOx purification ratio of the reduction catalyst based on a temperature of the reduction catalyst, a flow rate of the exhaust gas, and an absorption amount of the reducing agent by the reduction catalyst, and a reducing agent concentration estimation unit estimating a concentration of the reducing agent injected from a reducing agent injection valve based on the measured NOx purification ratio and the estimated NOx purification ratio.Type: GrantFiled: May 19, 2014Date of Patent: August 21, 2018Assignee: Bosch CorporationInventor: Kenichi Tanioka
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Patent number: 10032324Abstract: An air bag ECU includes an ECU communication unit communicating with an external sensor (for example, a front right acceleration sensor) and a faulty sensor mount determination unit determining whether a faulty sensor having been diagnosed as being faulty before is connected to the air bag ECU based on failure history data indicating whether the external sensor has been diagnosed as being faulty before. The faulty sensor mount determination unit compares identification data recorded in, for example, a faulty sensor ID recording unit, for individually identifying an external sensor having been diagnosed as being faulty before with the identification data of the external sensor connected to the air bag ECU and determines whether a faulty sensor is connected to the air bag ECU.Type: GrantFiled: May 19, 2014Date of Patent: July 24, 2018Assignee: Bosch CorporationInventors: Ryojiro Akanuma, Kenji Arai, Keisuke Matsuura
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Patent number: 10017177Abstract: To suppress occurrence of a wheelie of a motorcycle. A torque control apparatus includes a the detection unit that detects a state in which the front wheel of the motorcycle is likely to be lifted up based on at least one of engine information of the motorcycle, accelerator operation information of the driver of the motorcycle, and information of the vehicle body or wheel of the motorcycle. The torque control apparatus further includes an output unit that, when the detection unit detects the state in which the front wheel is likely to be lifted up, outputs a torque smaller than a request torque of the driver as a request torque for an the engine of the motorcycle or outputs the difference between the request torque of the driver and a torque smaller than the request torque of the driver as a brake torque.Type: GrantFiled: March 21, 2014Date of Patent: July 10, 2018Assignee: Bosch CorporationInventors: Takuya Watanabe, Yoshihide Igari
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Patent number: 9944263Abstract: An object is to provide a master cylinder that ensures the responsivity during brake actuation, improves a release delay during brake release, ensures the responsivity during automatic braking, and quickly releases the residual pressure in the hydraulic chamber.Type: GrantFiled: August 7, 2014Date of Patent: April 17, 2018Assignee: Bosch CorporationInventor: Yuji Hirata
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Patent number: 9829197Abstract: A pressure-sensor-integrated glow plug which can increase reliability of a bonding portion between a ceramic heater and a metal-made outer sleeve while being manufactured with relatively simple manufacturing steps and, at the same time, can maintain airtightness over a long period, and a method of manufacturing such a pressure-sensor-integrated glow plug.Type: GrantFiled: January 16, 2014Date of Patent: November 28, 2017Assignee: Bosch CorporationInventors: Kan Cho, Yasuo Toyoshima
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Patent number: 9822755Abstract: Disclosed is a glow plug diagnosis method of being able to diagnose the aging or fault of a glow plug without being affected by cooling associated with air intake/exhaust or fuel injection, the method including: a step (S102) of energizing a glow plug 1 in a predetermined manner when a key switch 11 of a vehicle is turned on; and a step (S106) of measuring the resistance value of the glow plug 1 when the energization of the glow plug 1 is started, and the resistance value of the glow plug when the energization of the glow plug 1 is started and then a change in the resistance value is saturated, and of calculating a change in the resistance value over time as a resistance value gradient, in which it is determined that the glow plug 1 is normal when the resistance value gradient exceeds a predetermined first gradient reference value a, and it is determined that the glow plug 1 is faulty, and a warning lamp or the like is lighted when the resistance value gradient is less than a predetermined second gradient refType: GrantFiled: November 18, 2013Date of Patent: November 21, 2017Assignee: Bosch CorporationInventors: Yasuo Toyoshima, Shuichi Tsukahara, Tomohiro Nakamura, Yutaka Tanaka
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Patent number: 9816416Abstract: The control method for reducing agent supply apparatuses, when a liquid reducing agent is frozen, unfreezes the frozen liquid reducing agent using a heating device and enables the injection control of the liquid reducing agent in an exhaust passage of the internal combustion engine. The control method includes determining the necessity of unfreezing of the liquid reducing agent and calculating the necessary time required for the unfreezing when the speed of the internal combustion engine exceeds a predetermined threshold during startup of the internal combustion engine and permitting the injection control of the liquid reducing agent when the unfreezing is not necessary or the unfreezing is completed.Type: GrantFiled: May 19, 2014Date of Patent: November 14, 2017Assignee: Bosch CorporationInventor: Nobuaki Furesawa
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Patent number: 9758205Abstract: There is provided a two-wheeled vehicle overturn prevention method, wherein maximum allowable lean angles corresponding to vehicle body velocities are preset in relation to lean angles of a vehicle body, and in a case where an actual lean angle of the vehicle body exceeds a maximum allowable lean angle corresponding to an actual vehicle body velocity of the vehicle body or in a case where an estimated lean angle of the vehicle body after a predetermined amount of time exceeds or looks to exceed a maximum allowable lean angle corresponding to an estimated vehicle body velocity, the two-wheeled vehicle overturn prevention method is adapted to accelerate the vehicle body or keep the vehicle body from decelerating.Type: GrantFiled: April 25, 2013Date of Patent: September 12, 2017Assignee: Bosch CorporationInventor: Shunsaku Ono
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Patent number: 9759111Abstract: To provide an exhaust purifying system and a method for controlling the exhaust purifying system that avoid occurrence of clogging, breakage, or the like of a reducing agent injection valve caused by the solidification of a reducing agent and prevent reduction in the efficiency of reducing agent recovery processing and exhaust gas purification.Type: GrantFiled: February 14, 2014Date of Patent: September 12, 2017Assignee: Bosch CorporationInventors: Kenichi Tanioka, Masanori Watanabe
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Patent number: 9758168Abstract: A technique for simplifying the structure of an idling stop device. The idling stop device 100 includes a deceleration detector 200 which detects decelerations of a vehicle. The idling stop device 100 also includes an estimation part 350 which acquires, based on the deceleration detected by the deceleration detector 200, first deceleration when a vehicle is decelerated to a preset speed of less. Based on the acquired first deceleration, the estimation part 350 estimates a first brake pressure applied to the vehicle when the vehicle is decelerated to the preset speed or less.Type: GrantFiled: October 28, 2013Date of Patent: September 12, 2017Assignee: Bosch CorporationInventors: Taichi Hasegawa, Shuichi Miyagawa
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Patent number: 9716522Abstract: To reduce the size of a radio communication module installed in a vehicle by simplifying the structure thereof. A radio communication module 100 includes a board 170 on which electronic components 172 for radio communication are mounted and a housing 110 accommodating the board 170 and is installed in the vehicle. The board 170 has a hole 180 into which a pin 150 standing in the housing 110 is inserted to fix the board 170 in the housing 110 by inserting the pin 150 to the hole 180. The pin 150 functions as an antenna for transmitting and receiving a signal in the radio communication.Type: GrantFiled: March 21, 2014Date of Patent: July 25, 2017Assignee: Bosch CorporationInventors: Fevzi Yildirim, Yasuaki Kurita, Wilko-Gordon Block, Hiroshi Toida