Patents by Inventor Yuichi Kajino
Yuichi Kajino 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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Publication number: 20010045099Abstract: In a control system of a vehicle air conditioner, when a temperature difference between a previous target air temperature at the previous manual operation and a present target air temperature at the present manual operation is smaller than a predetermined value, that is, when it is estimated that a passenger's desired air amount is not set by the previous manual operation, a blower voltage control characteristic for controlling an air amount of a blower is corrected so that a set value at the previous manual operation is not affected to the present learning. Accordingly, it can prevent air-conditioning feeling from being deteriorated due to mis-learning.Type: ApplicationFiled: March 9, 2001Publication date: November 29, 2001Inventors: Akira Ohga, Yuichi Kajino, Takayoshi Kawai, Toshifumi Kamiya, Yoshinori Ichishi
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Publication number: 20010039806Abstract: In a vehicle air conditioning system, a non-contact temperature sensor having plural temperature detecting elements is disposed to detect a predetermined region within a passenger compartment. The plural temperature detecting elements are constructed by plural first elements each of which has a smaller temperature detecting area in the predetermined region, and plural second elements each of which has a larger temperature detecting area in the predetermined region. The non-contact temperature sensor detects an area, where a detail temperature-distribution information is necessary, using the first elements, and detects an area, where the detail temperature-distribution information is unnecessary, using the second elements.Type: ApplicationFiled: May 8, 2001Publication date: November 15, 2001Inventors: Takayoshi Kawai, Toshifumi Kamiya, Akira Ohga, Hiroshi Ando, Yuichi Kajino, Hiroyuki Tarumi, Katsuyoshi Nishii
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Publication number: 20010029162Abstract: In a vehicle air conditioner, each of cool air outlets is provided at an upper side of each seat at second and third seat lines from a most front seat so that cool air from an air conditioning unit is blown from the cool air outlets toward upper sides of the seats, respectively, and each of warm air outlets is provided at a lower side of each seat at the second and third seat lines so that warm air from the air conditioning unit is blown from the warm air outlets toward lower sides of the seats, respectively. In addition, each of suction ports is provided for each corresponding seat at the second and third seat lines so that air inside a passenger compartment is sucked from the suction ports to be returned to the air conditioning unit.Type: ApplicationFiled: March 28, 2001Publication date: October 11, 2001Inventors: Takeshi Yoshinori, Kouji Sakai, Shinji Aoki, Yuichi Kajino
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Publication number: 20010022222Abstract: A vehicle air conditioning system includes a space air conditioning unit for blowing conditioned air into a passenger compartment, a seat air conditioning unit for blowing air into a vehicle seat, and a control unit for controlling the space air conditioning unit and the seat air conditioning unit. The control unit includes space controlling means for controlling the space air conditioning unit in accordance with a space control value calculated based on a space target air temperature, and seat controlling means for controlling the seat air conditioning unit in accordance with a seat control value calculated based on the space target air temperature. Further, the seat controlling means includes a first seat air conditioning means which determines the seat control value in a steady air conditioning state of the passenger compartment, and a second seat air-conditioning means which determines the seat control value in a transition air-conditioning state of the passenger compartment.Type: ApplicationFiled: January 25, 2001Publication date: September 20, 2001Inventors: Shinji Aoki, Takeshi Yoshinori, Koji Sakai, Yuichi Kajino
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Publication number: 20010004008Abstract: A vehicle seat air-conditioning system is used with a main air-conditioning unit which operates in one of a plurality of air blow modes. The main air-conditioning unit has an air-conditioned air outlet-port for supplying air-conditioned air irrespective of the air mode. The vehicle seat air-conditioning system includes an air-conditioned air duct connected to the air-conditioned air outlet-port, a seat-air duct connected to the air-conditioned air duct to supply the air-conditioned air to the inside of a seat and an air blower unit for blowing the air-conditioned air.Type: ApplicationFiled: December 15, 2000Publication date: June 21, 2001Inventors: Shinji Aoki, Yuichi Kajino, Takeshi Yoshinori
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Publication number: 20010000407Abstract: Temperatures in a Dr side air-conditioning zone and a Pa side air-conditioning zone are controlled highly independently of each other without temperature interference between each zone. A room internal air temperature sensor and a room external air temperature sensor are provided. Dr side and Pa side temperature setters separately set room setpoint temperatures (Tset(Dr), Tset(Pa)) in each zone. First and second target blow-out temperature calculating portions, which include neural network, input the room setpoint temperatures and the temperature data. Then it calculates Dr side and Pa side target blow-out temperatures (TAO(Dr), TAO(Pa)) relative to each air-conditioning zones by using a neural network. Air-mixing doors separately adjusts the temperatures of conditioned air blown out from Dr side air passage and Pa side air passage to be the first and second target blow-out temperatures. Here, the neural network has the learning function, which adjusts its output to be desired data (teacher signal).Type: ApplicationFiled: December 4, 2000Publication date: April 26, 2001Applicant: DENSO CorporationInventors: Yoshinori Ichishi, Takayoshi Kawai, Yuji Ito, Katsuhiko Samukawa, Yuichi Kajino
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Patent number: 6220517Abstract: Temperatures in a Dr side air-conditioning zone and a Pa side air-conditioning zone are controlled highly independently of each other without temperature interference between each zone. A room internal air temperature sensor and a room external air temperature sensor are provided. Dr side and Pa side temperature setters separately set room setpoint temperatures (Tset(Dr), Tset(Pa)) in each zone. First and second target blow-out temperature calculating portions, which include neural network, input the room setpoint temperatures and the temperature data. Then it calculates Dr side and Pa side target blow-out temperatures (TAO(Dr), TAO(Pa)) relative to each air-conditioning zones by using a neural network. Air-mixing doors separately adjusts the temperatures of conditioned air blown out from Dr side air passage and Pa side air passage to be the first and second target blow-out temperatures. Here, the neural network has the learning function, which adjusts its output to be desired data (teacher signal).Type: GrantFiled: April 21, 1999Date of Patent: April 24, 2001Assignee: Denso CorporationInventors: Yoshinori Ichishi, Takayoshi Kawai, Yuji Ito, Katsuhiko Samukawa, Yuichi Kajino
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Patent number: 6202934Abstract: An air conditioner for a vehicle which accurately estimates a thermal load to enhance inside temperature controllability. The air conditioner comprises a first surface temperature sensor for detecting a temperature of an internal surface region of a vehicle compartment which varies with a temperature of an external surface of a vehicle, and a second surface temperature sensor for detecting a temperature of a surface region which varies with an intensity of solar radiation intruding into the vehicle compartment. A target blowout air temperature is calculated using input signals including surface temperature signals detected by these sensors. Thus, intrusion heat (thermal load) due to a difference between an inside air temperature and a compartment internal surface temperature can be directly estimated to enable accurate thermal load calculation.Type: GrantFiled: August 31, 2000Date of Patent: March 20, 2001Assignee: Denso CorporationInventors: Toshifumi Kamiya, Takayoshi Kawai, Yoshinori Ichishi, Yuichi Kajino, Akira Ohga, Katsuyoshi Nishii, Hiroshi Ando
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Patent number: 6170274Abstract: A vehicle air-conditioning system for achieving a comfortable blowout state of conditioned air at all times both with respect to air-conditioning load factors which change frequently, like solar radiation strength, and with respect to air-conditioning load factors which change slowly, like passenger compartment temperature, by automatic control of grill louver swing control times corresponding to different air-conditioning loads. For example, when it can be estimated that solar radiation is incident on a driver side or passenger side front or rear seat occupant, oscillating driver side and passenger side center louvers are paused at a swing end of the occupant estimated to be exposed to solar radiation for a time that corresponds to the amount of cooling load. Therefore, it is possible to direct conditioned air at an occupant exposed to sun and thus improve the comfort of occupants upon whom sun is incident.Type: GrantFiled: May 12, 1999Date of Patent: January 9, 2001Assignee: Denso CorporationInventors: Yoshinori Ichishi, Toshifumi Kamiya, Katsuhiko Samukawa, Takayoshi Kawai, Yuichi Kajino, Hikaru Sugi
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Patent number: 6059018Abstract: An air-conditioning case (2d) of a front air-conditioning unit (2) includes therein a branching duct (2c) for dividing the flow of the air-conditioned air to the seat (3) of occupants, and a cool/warm air switch (10) for switching the cool air (7) and the warm air (8) of the air-conditioned air and sending the resultant air to air supply ports (19). The air supply ports (19) are connected to the seat (3) by a single air duct (4). Therefore, the duct configuration is very simple. Also, the air duct (4) can be an existing one connected to the rear foot vent (30).Type: GrantFiled: July 13, 1998Date of Patent: May 9, 2000Assignee: Denso CorporationInventors: Takeshi Yoshinori, Yuichi Kajino, Hikaru Sugi, Shinji Aoki, Yoshimitsu Inoue, Hajime Ito
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Patent number: 6012297Abstract: A vehicle air conditioning apparatus in which the larger the air conditioning cooling load in a vehicle compartment, for example, the larger the solar radiation amount, the lower the set temperature or the larger the temperature deviation between set temperature and inner air temperature, the narrower the swing ranges of swing louvers of respective center and side FACE blow outlets are set. Regardless of the swing range of the swing louvers, swing cycles of the swing louvers are set constant, and the narrower the swing ranges of the swing louvers, the slower the swing speeds of the swing louvers are set. Therefore, annoying feeling is reduced, and comfortable feeling for passengers is significantly improved.Type: GrantFiled: August 6, 1998Date of Patent: January 11, 2000Assignee: Denso CorporationInventors: Yoshinori Ichishi, Katsuhiko Samukawa, Takayoshi Kawai, Yuichi Kajino, Yuji Ito
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Patent number: 5921100Abstract: An air conditioning apparatus for a seat of a vehicle includes a seat air-blowing unit disposed in a lower portion of the seat, and a seat duct for blowing air from an air conditioning unit to the seat air-blowing unit. The air conditioning unit includes a case for forming therein a cool air passage and a warm air passage, and a switching door for opening and closing the cool air passage and the warm air passage. When a stationary state is set from a cool-down state during cooling mode, the switching door closes the cool air passage to fully open the warm air passage. Thus, inside air is introduced into the warm air passage from a foot air outlet of the air conditioning unit, is supplied to the seat air-blowing unit through the seat duct, and is blown from a seat surface of the seat toward a passenger seated on the seat. As a result, in the air conditioning apparatus, cool air and inside air can be readily switched with a simple structure.Type: GrantFiled: May 29, 1998Date of Patent: July 13, 1999Assignee: Denso CorporationInventors: Takeshi Yoshinori, Shinji Aoki, Yuichi Kajino, Hajime Ito, Hikaru Sugi
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Patent number: 5876277Abstract: A deodorizing filter for adsorbing malodorous particles in air is disposed at a downstream air side of a circumferential wall of an inside/outside air switching rotary door which opens and closes inside and outside air intake ports. A gap having a predetermined distance is provided between the deodorizing filter and the circumferential wall of the rotary door. The deodorizing filter is rotated integrally with the rotary door. When the rotary door is rotated to open both the outside and inside air intake ports at their intermediately opened positions, the inside air flowing from the inside air intake port directly flows into an outlet side of an inside/outside air switching box, and the outside air introduced from the outside air intake port passes through the gap and the deodorizing filter and flows into the outlet side of the inside/outside air switching box.Type: GrantFiled: January 28, 1998Date of Patent: March 2, 1999Assignee: Denso CorporationInventors: Yukio Uemura, Manabu Miyata, Takuya Natsume, Kazushi Shikata, Hikaru Sugi, Teruhiko Kameoka, Kazutoshi Kuwayama, Yuichi Kajino, Takeshi Yoshinori
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Patent number: 5392845Abstract: An air-conditioning device capable of obtaining a suitable blow-out temperature through one passage from the initial period of change even when the air-conditioning operation in which either a first passage or a second passage is closed is changed into an operation condition in which it is opened. A feet mode in which the hot air is blown to the feet of a passenger from a second passage 7, is changed to a bilevel mode in which a first passage 6 that communicates with the upper half body of the passenger is switched from the closed state to the open state. During a predetermined period of time in the initial period following the change, the temperature blown from the first passage 6 is determined based upon a blow-out temperature of the second passage 7 and a desired blow-out temperature TAOV of the first passage 6.Type: GrantFiled: January 12, 1994Date of Patent: February 28, 1995Assignee: Nippondenso Co., Ltd.Inventors: Yuuji Honda, Yuichi Kajino, Takayoshi Kawai, Yuji Ito, Katsuhiko Samukawa