Patents by Inventor Norihiko HATSUMI
Norihiko HATSUMI 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).
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Patent number: 10717369Abstract: A charge control apparatus for an electric vehicle that includes: a traction motor; a traction battery to which charging current is supplied from an external power source and that supplies current to the traction motor; and an electric device actuated by part of the charging current during charging of the traction battery is provided. The charge control apparatus includes: an instruction unit to instruct decrease of load of the electric device in case that the electric device is actuated during charging of the traction battery; a restriction unit to restrict the charging current after instruction of the decrease of load; and a load decreasing unit for decreasing load of the electric device after restricting the charging current.Type: GrantFiled: August 16, 2017Date of Patent: July 21, 2020Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHAInventors: Kazuya Koike, Shinya Fujiwara, Norihiko Hatsumi, Koichi Tano
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Patent number: 10093190Abstract: There is provided a voltage-between-terminals measurement unit that measures voltage between the terminals of a charging connector connecting an external charger that charges a battery. A release device of the charging connector determines melt of charging contactors, and disconnects main contactors to immediately reduce the voltage between the terminals of the charging connector if it is determined that the charging contactors melt.Type: GrantFiled: May 2, 2016Date of Patent: October 9, 2018Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHAInventors: Kosuke Moro, Norihiko Hatsumi
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Publication number: 20180056804Abstract: The present disclosure provides a charge, control apparatus for an electric vehicle, the electric vehicle including: a traction motor; a traction battery to which charging current is supplied from an external power source and that supplies current to the traction motor; and an electric device actuated by part of the charging current during charging of the traction battery. The charge control apparatus includes: an instruction unit to instruct decrease of load of the electric device in case that the electric device is actuated during charging of the traction battery; a restriction unit to restrict the charging current after instruction of the decrease of load; and a load decreasing unit for decreasing load of the electric device after restricting the charging current.Type: ApplicationFiled: August 16, 2017Publication date: March 1, 2018Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHAInventors: Kazuya KOIKE, Shinya FUJIWARA, Norihiko HATSUMI, Koichi TANO
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Patent number: 9853470Abstract: A charge amount display apparatus of an electric vehicle, which enables a driver to be easily aware that a charge amount has been set at a value less than a full charge, is provided. The charge amount display apparatus comprises a control unit 11 for setting a charge limit value which serves as the upper limit of the charge amount of a battery 2; and a display unit 13 for displaying a maximum charge amount, to which the battery 2 can be charged, and the charge limit value. The maximum charge amount is displayed by a segment group 30 composed of a plurality of segments 31 arranged side by side in one direction for representing the charge amount of the battery 2. The segments 31a for a value equal to or lower than the charge limit value, and the segments 31b for a value higher than the charge limit value are displayed in different colors. The segments for a charge amount equal to or lower than the charge limit value are displayed in a first region 21a of a first display region 21 of the display unit 13.Type: GrantFiled: December 22, 2015Date of Patent: December 26, 2017Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHAInventors: Norihiko Hatsumi, Kosuke Moro, Yoshihide Fujikawa, Koichi Tano
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Publication number: 20160339839Abstract: There is provide a control unit for an electrically driven vehicle that is charged by an exterior power supply being inserted into a charging inlet that can be closed by an opening and closing device, including a vehicle state determination module that determines whether or not the electrically driven vehicle is in a charging prohibited state, and a warning control module that controls a warning device for issuing a warning to activate the warning device when the electrically driven vehicle satisfies a warning condition, wherein the warning condition is such that the vehicle state determination module determines that the electrically driven vehicle is in the charging prohibited state and that the opening and closing device is switched to an opened state.Type: ApplicationFiled: May 3, 2016Publication date: November 24, 2016Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHAInventors: Norihiko HATSUMI, Yasuo KAMIMURA, Koichi TANO, Yoshihide FUJIKAWA
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Publication number: 20160243954Abstract: There is provided a voltage-between-terminals measurement unit that measures voltage between the terminals of a charging connector connecting an external charger that charges a battery. A release device of the charging connector determines melt of charging contactors, and disconnects main contactors to immediately reduce the voltage between the terminals of the charging connector if it is determined that the charging contactors melt.Type: ApplicationFiled: May 2, 2016Publication date: August 25, 2016Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHAInventors: Kosuke MORO, Norihiko HATSUMI
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Publication number: 20160190842Abstract: A charge amount display apparatus of an electric vehicle, which enables a driver to be easily aware that a charge amount has been set at a value less than a full charge, is provided. The charge amount display apparatus comprises a control unit 11 for setting a charge limit value which serves as the upper limit of the charge amount of a battery 2; and a display unit 13 for displaying a maximum charge amount, to which the battery 2 can be charged, and the charge limit value. The maximum charge amount is displayed by a segment group 30 composed of a plurality of segments 31 arranged side by side in one direction for representing the charge amount of the battery 2. The segments 31a for a value equal to or lower than the charge limit value, and the segments 31b for a value higher than the charge limit value are displayed in different colors. The segments for a charge amount equal to or lower than the charge limit value are displayed in a first region 21a of a first display region 21 of the display unit 13.Type: ApplicationFiled: December 22, 2015Publication date: June 30, 2016Applicant: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Norihiko HATSUMI, Kosuke MORO, Yoshihide FUJIKAWA, Koichi TANO
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Patent number: 9037372Abstract: An output torque control system includes a control unit which includes an acceleration mode detection unit and an output torque control unit. The acceleration mode detection unit selects a normal acceleration mode which includes output torque information indicating an increased amount of output torque of an electric motor as time elapses or a rapid acceleration mode which includes output torque information indicating the increased amount of output torque of the electric motor as time elapses more largely than in the normal acceleration mode based on a result of a detection by a depressing speed detection unit. The output torque control unit selects one of the output torque information which corresponds to the result of the detection by the acceleration mode detection unit to control the output torque produced by the electric motor based on the selected output torque information.Type: GrantFiled: March 6, 2012Date of Patent: May 19, 2015Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHAInventors: Akira Hashizaka, Yoshiaki Sano, Hiroaki Miyamoto, Toshiyuki Matsumi, Norihiko Hatsumi, Takanori Sugimoto, Yasuyuki Hatsuda, Noritaka Terakawa, Tsuyoshi Takeo, Yutaka Nakagi
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Patent number: 8956266Abstract: A vehicle driving force control device includes: a brake unit configured to generate a brake force of a vehicle; a stroke amount detecting unit configured to detect a stroke amount of a brake pedal of the vehicle; a monitoring unit configured to monitor whether generation of the brake force of the brake unit is abnormal; and a creep torque controlling unit configured to increase a reduction amount of a creep torque of the vehicle as the stroke amount increases, when the monitoring unit determines that the generation of the brake force in the brake unit is abnormal.Type: GrantFiled: October 19, 2011Date of Patent: February 17, 2015Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Toshiya Oue, Kazufumi Hayashikawa, Katsutoshi Nagura, Keisuke Imoto, Hiroaki Miyamoto, Yasuyuki Hatsuda, Takanori Sugimoto, Norihiko Hatsumi
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Patent number: 8947025Abstract: A regeneration control device of an electrically powered vehicle includes a motor generator which performs electric power regeneration by braking a driving wheel of the electrically powered vehicle, and a battery to which electric power regenerated by the motor generator is supplied. A monitoring unit includes at least one of a charging rate detection unit configured to detect a charging rate of the battery and a voltage value detection unit configured to detect a voltage value of the battery. A control unit controls the electric power regeneration of the motor generator according to at least one of the charging rate and the voltage value of the battery detected by the monitoring unit. The control unit is configured to decrease regenerative electric current of the motor generator as at least one of the charging rate and the voltage value is increased.Type: GrantFiled: July 13, 2012Date of Patent: February 3, 2015Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Norihiko Hatsumi, Yoshiaki Sano, Toshiyuki Matsumi, Takanori Sugimoto, Hiroaki Miyamoto, Yasuyuki Hatsuda, Akira Hashizaka, Masanori Watanabe, Nobuaki Ohta
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Patent number: 8694188Abstract: A motor torque control device of an electrically-driven vehicle equipped with a motor serving as a driving source, is configured to limit an output of the motor when both a brake pedal and an accelerator pedal of the electrically-driven vehicle are stepped. A motor limit torque, which is an upper limit value of a command torque for the motor, is changed depending on a vehicle velocity of the electrically-driven vehicle detected by a vehicle velocity detecting unit and a stepping amount of the brake pedal detected by a brake pedal stepping amount detecting unit.Type: GrantFiled: October 18, 2011Date of Patent: April 8, 2014Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Hiroaki Miyamoto, Yoshiaki Sano, Akira Hashizaka, Yasuyuki Hatsuda, Toshiyuki Matsumi, Norihiko Hatsumi, Takanori Sugimoto
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Patent number: 8439795Abstract: In a vehicle that generates creep torque using an electric motor, a controlling means that causes, on the basis of the results of the detecting by the vehicle speed detecting means and the braking operation detecting means, the electric motor to generate the creep torque, wherein if the brake is operated when the creep torque is generated, the controlling means decreases the creep torque by a first level, if the brake is not operated when the creep torque is generated, the controlling means increases or decrease the creep torque in a level range on the basis of the speed of the vehicle detected by the vehicle speed detecting means, and the first level is a decreasing level larger than a possible maximum decreasing level in the level range.Type: GrantFiled: August 15, 2011Date of Patent: May 14, 2013Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Hiroaki Miyamoto, Yoshiaki Sano, Takanori Sugimoto, Norihiko Hatsumi, Yasuyuki Hatsuda, Akira Hashizaka, Toshiyuki Matsumi
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Publication number: 20130015791Abstract: A regeneration control device of an electrically powered vehicle includes a motor generator which performs electric power regeneration by braking a driving wheel of the electrically powered vehicle, and a battery to which electric power regenerated by the motor generator is supplied. Monitoring means includes at least one of charging rate detection means configured to detect a charging rate of the battery and voltage value detection means configured to detect a voltage value of the battery. Control means controls the electric power regeneration of the motor generator according to at least one of the charging rate and the voltage value of the battery detected by the monitoring means. The control means is configured to decrease regenerative electric current of the motor generator as at least one of the charging rate and the voltage value is increased.Type: ApplicationFiled: July 13, 2012Publication date: January 17, 2013Inventors: Norihiko HATSUMI, Yoshiaki Sano, Toshiyuki Matsumi, Takanori Sugimoto, Hiroaki Miyamoto, Yasuyuki Hatsuda, Akira Hashizaka, Masanori Watanabe, Nobuaki Ohta
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Publication number: 20120232735Abstract: An output torque control system includes a control unit which includes an acceleration mode detection unit and an output torque control unit. The acceleration mode detection unit selects a normal acceleration mode which includes output torque information indicating an increased amount of output torque of an electric motor as time elapses or a rapid acceleration mode which includes output torque information indicating the increased amount of output torque of the electric motor as time elapses more largely than in the normal acceleration mode based on a result of a detection by a depressing speed detection unit. The output torque control unit selects one of the output torque information which corresponds to the result of the detection by the acceleration mode detection unit to control the output torque produced by the electric motor based on the selected output torque information.Type: ApplicationFiled: March 6, 2012Publication date: September 13, 2012Inventors: Akira Hashizaka, Yoshiaki Sano, Hiroaki Miyamoto, Toshiyuki Matsumi, Norihiko Hatsumi, Takanori Sugimoto, Yasuyuki Hatsuda, Noritaka Terakawa, Tsuyoshi Takeo, Yutaka Nakagi
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Publication number: 20120100958Abstract: A vehicle driving force control device includes: a brake unit configured to generate a brake force of a vehicle; a stroke amount detecting unit configured to detect a stroke amount of a brake pedal of the vehicle; a monitoring unit configured to monitor whether generation of the brake force of the brake unit is abnormal; and a creep torque controlling unit configured to increase a reduction amount of a creep torque of the vehicle as the stroke amount increases, when the monitoring unit determines that the generation of the brake force in the brake unit is abnormal.Type: ApplicationFiled: October 19, 2011Publication date: April 26, 2012Inventors: Toshiya OUE, Kazufumi HAYASHIKAWA, Katsutoshi NAGURA, Keisuke IMOTO, Hiroaki MIYAMOTO, Yasuyuki HATSUDA, Takanori SUGIMOTO, Norihiko HATSUMI
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Publication number: 20120095634Abstract: A motor torque control device of an electrically-driven vehicle equipped with a motor serving as a driving source, is configured to limit an output of the motor when both a brake pedal and an accelerator pedal of the electrically-driven vehicle are stepped. A motor limit torque, which is an upper limit value of a command torque for the motor, is changed depending on a vehicle velocity of the electrically-driven vehicle detected by a vehicle velocity detecting unit and a stepping amount of the brake pedal detected by a brake pedal stepping amount detecting unit.Type: ApplicationFiled: October 18, 2011Publication date: April 19, 2012Inventors: Hiroaki MIYAMOTO, Yoshiaki SANO, Akira HASHIZAKA, Yasuyuki HATSUDA, Toshiyuki MATSUMI, Norihiko HATSUMI, Takanori SUGIMOTO
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Publication number: 20120071296Abstract: In a vehicle that generates creep torque using an electric motor, a controlling means that causes, on the basis of the results of the detecting by the vehicle speed detecting means and the braking operation detecting means, the electric motor to generate the creep torque, wherein if the brake is operated when the creep torque is generated, the controlling means decreases the creep torque by a first level, if the brake is not operated when the creep torque is generated, the controlling means increases or decrease the creep torque in a level range on the basis of the speed of the vehicle detected by the vehicle speed detecting means, and the first level is a decreasing level larger than a possible maximum decreasing level in the level range.Type: ApplicationFiled: August 15, 2011Publication date: March 22, 2012Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHAInventors: Hiroaki MIYAMOTO, Yoshiaki SANO, Takanori SUGIMOTO, Norihiko HATSUMI, Yasuyuki HATSUDA, Akira HASHIZAKA, Toshiyuki MATSUMI