Patents by Inventor Hideki Hashigaya

Hideki Hashigaya 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).

  • Patent number: 9758008
    Abstract: In an air conditioning system, a control unit controls an adjusting unit to adjust a ratio between an amount of a first part of introduced air passing through a heater core and an amount of a second part of the introduced air bypassing the heater core to a first ratio at which the amount of the first part of the introduced air decreases from a maximized amount of the first part of the introduced air according to an increase in temperature of the heater core by a warming unit. When a setting temperature for air conditioning is increased by an input unit, the control unit controls the adjusting unit to change the ratio from the first ratio to a second ratio at which the amount of the first part of the introduced air increases.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: September 12, 2017
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Hideki Hashigaya, Kensuke Momose
  • Patent number: 9211777
    Abstract: A vehicle air-conditioning apparatus 10, installed in a vehicle having a no idling system (in which the engine stops rather than idling). The apparatus includes a blower fan 12 for sending air-conditioning air for temperature control in a vehicle compartment R to the vehicle compartment; a heater core 14 for heating the air-conditioning air by heat exchange with cooling water of an engine; and an automatic air controller 18 for executing temperature regulation control in the vehicle compartment by regulating an air-conditioning air volume to be heat exchanged with the heater core. The automatic air controller controls, on heating, during a no idling operation, driving of a blower fan so as to supply a determined air volume in response to the ambient air temperature detected by an ambient air temperature sensor 22a.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: December 15, 2015
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Hideki Hashigaya, Naoki Fukumoto
  • Patent number: 9114686
    Abstract: There is provided an air conditioning system for a passenger compartment R of an electric vehicle having a rechargeable battery unit that is chargeable by supply of power from an external power source external to the vehicle. An air conditioner (AC) ECU 27 acquires a preparatory air conditioning time ? that is the time it takes to condition the interior air of the vehicle to a target interior air temperature 27T. An HEV controller 25 acquires from a quick charger 100 a charge time left 100R that is the time it takes until charge is completed and initiate preparatory air conditioning within the passenger compartment if the charge time left 100R is less than or equal to the preparatory air conditioning time ?.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: August 25, 2015
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Hideki Hashigaya, Kensuke Momose
  • Patent number: 9090144
    Abstract: An air conditioning system for a passenger compartment of an electric vehicle has a battery unit that is chargeable by supply of electric power from an external power source. The system includes a charge-level detection section to detect a charge level of the battery unit and an HEV controller has an integrated control of the whole of an electric vehicle including an air conditioner. Before a preparatory air-conditioning operation for air conditioning in the passenger compartment during charge, the HEV controller grants permission to enter air conditioning in the passenger compartment if the battery charge level is greater than a predetermined level. The HEV controller adjusts an amount of electric power usable for air conditioning in the passenger compartment based on a change in the charge level.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: July 28, 2015
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Kensuke Momose, Hideki Hashigaya
  • Publication number: 20130292482
    Abstract: In an air conditioning system, a control unit controls an adjusting unit to adjust a ratio between an amount of a first part of introduced air passing through a heater core and an amount of a second part of the introduced air bypassing the heater core to a first ratio at which the amount of the first part of the introduced air decreases from a maximized amount of the first part of the introduced air according to an increase in temperature of the heater core by a warming unit. When a setting temperature for air conditioning is increased by an input unit, the control unit controls the adjusting unit to change the ratio from the first ratio to a second ratio at which the amount of the first part of the introduced air increases.
    Type: Application
    Filed: April 22, 2013
    Publication date: November 7, 2013
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Hideki HASHIGAYA, Kensuke MOMOSE
  • Publication number: 20130160986
    Abstract: An air conditioner for a vehicle equipped with a motor for driving the vehicle has a vehicle speed detecting unit, an electric compressor, an evaporator, an electric compressor rotation speed controlling unit, a controlling unit and a refrigerant pressure detecting unit. The controlling unit calculates a first candidate for a rotation speed upper limit value of the electric compressor based on a vehicle speed detected by the vehicle speed detecting unit, calculates a second candidate for the rotation speed upper limit value of the electric compressor based on a refrigerant pressure detected by the refrigerant pressure detecting unit, and decides a minimum value of the first and second candidates for the rotation speed upper limit value of the electric compressor, as the rotation speed upper limit value of the electric compressor.
    Type: Application
    Filed: April 19, 2011
    Publication date: June 27, 2013
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Hideki Hashigaya, Isamu Ito, Yorisada Kondo, Yuki Futsuhara
  • Publication number: 20130139532
    Abstract: A controlling unit includes a fan air supply amount setting unit communicated with a supply fan feeding air cooled by an electric compressor into an interior of a vehicle and setting an air supply amount of the supply fan, and sets a rotation speed upper limit value of the electric compressor based on a vehicle speed detected by a vehicle speed detecting unit and the air supply amount set by the fan air supply amount setting unit.
    Type: Application
    Filed: April 19, 2011
    Publication date: June 6, 2013
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Hideki Hashigaya, Isamu Ito, Yuki Futsuhara, Yorisada Kondo
  • Publication number: 20130020046
    Abstract: An air conditioning system for a passenger compartment of an electric vehicle has a battery unit that is chargeable by supply of electric power from an external power source. The system includes a charge-level detection section to detect a charge level of the battery unit and an HEV controller has an integrated control of the whole of an electric vehicle including an air conditioner. Before a preparatory air-conditioning operation for air conditioning in the passenger compartment during charge, the HEV controller grants permission to enter air conditioning in the passenger compartment if the battery charge level is greater than a predetermined level. The HEV controller adjusts an amount of electric power usable for air conditioning in the passenger compartment based on a change in the charge level.
    Type: Application
    Filed: July 10, 2012
    Publication date: January 24, 2013
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Kensuke MOMOSE, Hideki HASHIGAYA
  • Publication number: 20130020045
    Abstract: There is provided an air conditioning system for a passenger compartment R of an electric vehicle having a rechargeable battery unit that is chargeable by supply of power from an external power source external to the vehicle. An air conditioner (AC) ECU 27 acquires a preparatory air conditioning time ? that is the time it takes to condition the interior air of the vehicle to a target interior air temperature 27T. An HEV controller 25 acquires from a quick charger 100 a charge time left 100R that is the time it takes until charge is completed and initiate preparatory air conditioning within the passenger compartment if the charge time left 100R is less than or equal to the preparatory air conditioning time ?.
    Type: Application
    Filed: July 10, 2012
    Publication date: January 24, 2013
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Hideki HASHIGAYA, Kensuke Momose
  • Publication number: 20130014931
    Abstract: A vehicle air-conditioning apparatus 10, installed in a vehicle featuring an no idling system, includes a blower fan 12 for sending air-conditioning air for temperature control in a vehicle compartment R to the vehicle compartment; a heater core 14 for heating the air-conditioning air by heat exchanging between cooling water of an engine; an automatic air controller 18 for executing temperature regulation control in the vehicle compartment by regulating an air-conditioning air volume to be heat exchanged between the heater core, wherein the automatic air controller controls, on heating, during no idling, driving of a blower fan so as to run up to air volume in response to the ambient air temperature detected by an ambient air temperature sensor 22a.
    Type: Application
    Filed: June 25, 2012
    Publication date: January 17, 2013
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Hideki HASHIGAYA, Naoki Fukumoto
  • Publication number: 20120318880
    Abstract: A fault diagnosis unit 61 identifies that a system is out of order and stops driving of a heater 51 (step S8) when a preset first setting time elapses after a start of driving of an electric-powered water pump 42 and a heater 51 (step S3 and step S4), a value obtained by subtracting temperature detected by a heater inlet temperature sensor 52 from temperature detected by a heater outlet temperature sensor 53 is less than or equal to a preset first threshold (step S5), and a value obtained by subtracting temperature detected by a water temperature sensor 43 before a start of driving of the electric-powered water pump 42 and the heater 51 from temperature detected by the water temperature sensor 43 is less than or equal to a second threshold (step S6).
    Type: Application
    Filed: June 11, 2012
    Publication date: December 20, 2012
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Hideki Hashigaya, Isamu Ito, Yorisada Kondo, Yuki Futuhara
  • Publication number: 20120240608
    Abstract: An air-conditioning control apparatus performs detailed determination of the operating conditions of an air-conditioning apparatus, and performs efficient air-conditioning control such that power distribution is changed based on the detailed determination, in order to improve the comfort of occupants under a limitation on air-conditioning, thereby balancing ensuring the range with ensuring the comfort of the occupants. The air-conditioning control apparatus calculates usable power amounts for a cooling unit and a heating unit, and drives the cooling unit and the heating unit based on drive limit values. It allocates power amounts calculated for the condition of the battery and the vehicle drive, that can be allocated to the air-conditioning equipment, to the cooling unit and the heating unit according to an air-conditioning state that is set automatically or manually, thereby enabling necessary heating and cooling to be used to its full extent even during limitations on air-conditioning.
    Type: Application
    Filed: March 21, 2012
    Publication date: September 27, 2012
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Isamu Ito, Hideki Hashigaya, Yuki Futsuhara, Yorisada Kondo
  • Publication number: 20120216557
    Abstract: To determine whether or not integral control is performed when a requested compressor output value is limited by an upper or lower limit, based on an evaporator temperature deviation, prevent divergence of an integral value, and make an evaporator temperature follow a target evaporator temperature during the integral control, an evaporator temperature deviation calculation means, integral control means for calculating an integral value based on an evaporator temperature deviation, and output value calculation means for calculating a requested compressor output value based on the integral value and limiting the requested compressor output value to calculate a compressor output value are provided.
    Type: Application
    Filed: February 14, 2012
    Publication date: August 30, 2012
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Isamu Ito, Hideki Hashigaya