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公开(公告)号：US20170274720A1
公开(公告)日：2017-09-28
申请号：US15436390
申请日：2017-02-17
Inventor： Ikuhide IYODA , Takayuki TACHI , Hideki OHASHI , Katsuyuki SANO , Jun TOKUMITSU , Ryo KANDA , Shogo TANAKA , Masao IKEYA , Masaaki OISHI
IPC: B60G17/015 , F04B41/02 , F15B11/16 , F04B35/04
Abstract: A vehicle-height control system includes: a fluid supply and discharge device including a compressor device and a tank storing fluid pressurized by the compressor device; a vehicle-height control actuator corresponding to a wheel and connected to the fluid supply and discharge device; a vehicle height controller that controls a vehicle height for the wheel by controlling the fluid supply and discharge device to control supply and discharge of fluid to and from the vehicle-height control actuator; a tank pressure controller that controls a tank pressure; and a fluid supply controller that supplies the fluid to a low pressure portion by controlling the fluid supply and discharge device at start and/or termination of at least one of control executed by the vehicle height controller and control executed by the tank pressure controller. The low pressure portion is at least a portion of the fluid supply and discharge device.
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公开(公告)号：US20170151849A1
公开(公告)日：2017-06-01
申请号：US15355588
申请日：2016-11-18
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hideki OHASHI , Katsuyuki SANO , Jun TOKUMITSU , Ryo KANDA , Shogo TANAKA
IPC: B60G17/015 , B60G17/016 , B60G17/017
CPC classification number: B60G17/0155 , B60G17/0157 , B60G17/016 , B60G17/017 , B60G17/0525 , B60G2204/62 , B60G2204/80 , B60G2400/252 , B60G2400/51 , B60G2400/952 , B60G2500/30
Abstract: A vehicle height adjustment system includes: a vehicle height adjustment actuator provided for each wheel of a vehicle; a pressure medium intake and exhaust device configured to supply and exhaust a pressure medium to and from the vehicle height adjustment actuator; and a vehicle height adjustment unit including a computer, the vehicle height adjustment unit configured to: adjust a vehicle height by controlling the pressure medium intake and exhaust device, the vehicle height being a distance between the wheel and a vehicle body; adjust the vehicle height when a get-in estimation condition is satisfied; and limit a number of times the vehicle height is adjusted within a set period to a number of times smaller than a set number of times.
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公开(公告)号：US20190176562A1
公开(公告)日：2019-06-13
申请号：US16097869
申请日：2017-06-08
Inventor： Hideki OHASHI , Jun TOKUMITSU , Ryo KANDA , Shogo TANAKA , Masaaki OISHI
IPC: B60G17/052
CPC classification number: B60G17/0523 , B60G2500/2014 , B60G2500/2021 , B60G2500/204 , B60G2500/205
Abstract: A vehicle-height control system including a tank, a compressor, an actuator, and a valve between the tank and the compressor. The valve is closed to a state of a pressure medium supplier to the compressor-pressure supply state when a tank pressure has reached a threshold in a tank-pressure supply state in which the tank pressure is supplied to the actuator. In the compressor-pressure supply state, the tank pressure is kept at the threshold, and a pressure in the actuator is greater than the tank pressure. The threshold makes it difficult for a pressure differential in the valve to become greater than a valve-opening pressure differential, making it difficult for the valve to be opened in the compressor-pressure supply state. This system enables good supply of a pressure medium from the compressor to the actuator, avoiding a longer time for vehicle height control and achieving a shorter compressor operation time.
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公开(公告)号：US20170341480A1
公开(公告)日：2017-11-30
申请号：US15605486
申请日：2017-05-25
Inventor： Masaaki OISHI , Hideki OHASHI , Jun TOKUMITSU , Ryo KANDA
CPC classification number: B60G11/30 , B60G11/27 , B60G17/052 , B60G2204/30 , B60G2500/205
Abstract: An air suspension system includes a controller that controls opening/closing of normally-closed electromagnetic switching valves constituting a control valve, a first supply/discharge switching valve, a second supply/discharge switching valve, a first tank switching valve, and a second tank switching valve. The controller controls opening/closing of the electromagnetic switching valves in an order of first control, second control, and third control. In the first control, the control valve is opened. In the second control, the first supply/discharge switching valve and the second supply/discharge switching valve are opened in an opened state of the control valve. In the third control, the control valve, the first supply/discharge switching valve, and the second supply/discharge switching valve are closed.
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公开(公告)号：US20170259639A1
公开(公告)日：2017-09-14
申请号：US15432219
申请日：2017-02-14
Inventor： Hideki OHASHI , Shogo TANAKA , Jun TOKUMITSU , Ryo KANDA , Masao IKEYA , Masaaki OISHI , Ken OGUE , Masakazu OHASHI
IPC: B60G17/015 , B60G17/052 , B60G11/27
CPC classification number: B60G17/0155 , B60G11/27 , B60G17/0523 , B60G17/0525 , B60G17/0528 , B60G2202/152 , B60G2202/154 , B60G2202/42 , B60G2500/202 , B60G2500/204 , B60G2500/205 , B60G2500/30
Abstract: A vehicle-height control system includes: a vehicle-height control actuator; a pressure-medium supply and discharge device configured to supply and discharge a pressure medium; and a vehicle height controller configured to control a vehicle height by controlling the pressure-medium supply and discharge device. The pressure-medium supply and discharge device includes a compressor and a tank configured to contain a pressure medium supplied from the compressor. The vehicle height controller includes a down controller configured to operate the compressor to discharge and supply the pressure medium from the vehicle-height control actuator to the tank to lower the vehicle height when a tank pressure is less than a set pressure. The down controller is configured to discharge the pressure medium from the vehicle-height control actuator to an outside to lower the vehicle height when the tank pressure is greater than or equal to the set pressure.
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Patent Agency Ranking
公开(公告)号：US20170182857A1
公开(公告)日：2017-06-29
申请号：US15337295
申请日：2016-10-28
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hideki OHASHI , Kohtaroh OKIMURA , Ryo KANDA , Shogo TANAKA , Jun TOKUMITSU
IPC: B60G17/033 , B60G11/27 , B60G11/30 , B60G17/056
CPC classification number: B60G17/033 , B60G11/27 , B60G11/30 , B60G17/0565 , B60G2400/252 , B60G2400/50 , B60G2400/51 , B60G2400/70 , B60G2400/952 , B60G2500/2021 , B60G2500/30 , B60G2600/02 , B60G2600/202
Abstract: A vehicle-height adjusting system includes: vehicle-height adjusting actuators each for adjusting a vehicle height for a corresponding one of wheels; a pressure medium supplier for supplying a pressure medium from a tank to each of the vehicle-height adjusting actuators; and a vehicle height adjuster for adjusting the vehicle height for each wheel. The vehicle-height adjusting actuators include a left vehicle-height adjusting actuator and a right vehicle-height adjusting actuator. The vehicle height adjuster includes a supply amount controller configured to control the pressure medium supplier such that substantially the same amount of the pressure medium is to be supplied from the tank to the left vehicle-height adjusting actuator and the right vehicle-height adjusting actuator, when at least one of the wheels is in contact with an uneven road surface.
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公开(公告)号：US20170151852A1
公开(公告)日：2017-06-01
申请号：US15348732
申请日：2016-11-10
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hideki OHASHI , Jun TOKUMITSU , Ryo KANDA , Shogo TANAKA , Kohtaroh OKIMURA
IPC: B60G17/052 , B60G17/015
CPC classification number: B60G17/018 , B60G17/0155 , B60G17/0525 , B60G2204/62 , B60G2204/80 , B60G2400/252 , B60G2400/51 , B60G2400/952 , B60G2500/30 , B60G2800/914
Abstract: A suspension system includes: suspensions that respectively include vehicle height control actuators; a pressure medium supply-discharge device; and a vehicle height controller configured to control the pressure medium supply-discharge device to control vehicle height, wherein a magnitude of resistance that is generated during a change in the vehicle height at one or more of the suspensions is larger than a magnitude of resistance at another one or more of the suspensions, and the vehicle height controller is configured to execute vehicle height control for the wheel that corresponds to the one or more of the suspensions with the large magnitude of the resistance prior to vehicle height control for the wheel that corresponds to the other one or more of the suspensions with the small magnitude of the resistance.
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公开(公告)号：US20170274723A1
公开(公告)日：2017-09-28
申请号：US15465115
申请日：2017-03-21
Inventor： Shogo TANAKA , Hideki OHASHI , Jun TOKUMITSU , Ryo KANDA , Hirokazu SHIOZAKI , Tomoyuki NAKAMURA
IPC: B60G17/052 , B60G17/019 , F15B11/16 , B60G17/015
CPC classification number: B60G17/0525 , B60G17/0155 , B60G17/019 , B60G17/0523 , B60G2202/152 , B60G2202/412 , B60G2202/42 , B60G2400/50 , B60G2500/2021 , B60G2500/204 , B60G2500/30 , B60R25/01 , F15B11/16 , F15B2211/426 , F15B2211/6306 , F15B2211/6652 , F15B2211/7051 , F15B2211/71 , F15B2211/7656 , F15B2211/78
Abstract: A vehicle-height control system includes: a fluid supply and discharge device including a compressor configured to suck fluid, and a tank configured to supply the fluid; an actuator-side passage connected to the fluid supply and discharge device; a vehicle-height control actuator provided for a wheel and connected to the actuator-side passage via a vehicle-height control valve; and a vehicle height controller configured to control a vehicle height for the wheel by controlling the fluid supply and discharge device and the vehicle-height control valve to control supply and discharge of the fluid in the vehicle-height control actuator. The vehicle height controller includes a start controller configured to open the vehicle-height control valve after establishing communication between the actuator-side passage and at least one of the tank and the compressor in a state in which the vehicle-height control valve is closed at a start of control of the vehicle height.
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公开(公告)号：US20170259641A1
公开(公告)日：2017-09-14
申请号：US15448950
申请日：2017-03-03
Inventor： Hideki OHASHI , Katsuyuki SANO , Jun TOKUMITSU , Ryo KANDA , Shogo TANAKA , Masaaki OISHI , Ken OGUE , Masakazu OHASHI
IPC: B60G17/0165 , B60G17/015 , B60G17/019 , B60G17/052
CPC classification number: B60G17/0165 , B60G17/0155 , B60G17/019 , B60G17/052 , B60G17/0523 , B60G17/0525 , B60G17/0528 , B60G2202/152 , B60G2202/42 , B60G2400/71 , B60G2400/7122 , B60G2400/8422 , B60G2500/202 , B60G2500/204 , B60G2500/30
Abstract: A vehicle-height control system is configured to control a vehicle height for a wheel. The vehicle-height control system includes: a vehicle-height control actuator provided so as to correspond to the wheel; a pressure-medium supply and discharge device configured to supply and discharge a pressure medium to and from the vehicle-height control actuator; and a vehicle height controller configured to control the vehicle height for the wheel by controlling the pressure-medium supply and discharge device based on an inside temperature and an outside-air temperature to control at least one of supply and discharge of the pressure medium to and from the vehicle-height control actuator. The inside temperature is a temperature in the vehicle-height control system.
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公开(公告)号：US20170259640A1
公开(公告)日：2017-09-14
申请号：US15449427
申请日：2017-03-03
Inventor： Hideki OHASHI , Katsuyuki SANO , Jun TOKUMITSU , Ryo KANDA , Shogo TANAKA , Masaaki OISHI , Ken OGUE
IPC: B60G17/015 , F16K31/02 , F16K31/06 , B60G17/016
CPC classification number: B60G17/0155 , B60G17/016 , B60G17/0485 , B60G17/0523 , B60G17/0525 , B60G17/0565 , B60G2400/71 , B60G2500/202 , B60G2500/204 , F16K31/025 , F16K31/06
Abstract: A vehicle-height adjustment system includes: a vehicle-height adjustment actuator provided so as to correspond to a wheel; and a pressure-medium supply and discharge device configured to supply and discharge a pressure medium to and from the vehicle-height adjustment actuator. The pressure-medium supply and discharge device includes a tank configured to store the pressure medium. The vehicle-height adjustment system includes a tank-pressure controller configured to control a tank pressure based on at least one of a vehicle height for the wheel and an inside temperature. The tank pressure is a pressure of the pressure medium stored in the tank, and the inside temperature is a temperature in the vehicle-height adjustment system.
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