Toyota Jidosha Kabushiki Kaisha

So-Ken Corporation

Jtekt Corporation

Hiroki Yahashi

Tsukuo Ishitoya

Eiji Okawachi

Koji Kida

Ryosuke Hori

Toshiyuki Kondo

Takuya Suzuki

Shota Yamamoto

Akio Nakamura

Daisuke Satoya

A gas supply module includes: a plurality of tanks; a solenoid valve; an intermediate flow path; a merging portion; a gas discharge flow path; a pressure measuring device; and a control unit. The control section controls the solenoid valve of any one of the solenoid valves to the open state at the start of the gas discharge, controls the solenoid valve to the closed state at the end of the gas discharge, and records the pressure measured by the pressure measuring device as the pressure of the tank provided with the solenoid valve controlled to the closed state.

Gas supply system for filling hydrogen into tank

To enable a hydrogen tank to be efficiently filled with hydrogen even when the hydrogen tank has a large capacity, hydrogen filling at the nozzle flow is prohibited when the nozzle flow of a nozzle is larger than the receptacle flow of a receptacle or when the receptacle flow is unknown under the condition that the nozzle and the receptacle can be connected to each other.

Hydrogen filling method, hydrogen filling apparatus, program, and record medium

A solenoid valve includes a coil, a valve element receiving portion, a valve element placed inside of the valve element receiving portion, and a valve portion configured to open and close a gas flow path accompanied with move of the valve element. Either a surface of the valve element opposed to the valve element receiving portion or a surface of the valve element receiving portion opposed to the valve element has a first groove that is extended in an axial direction and a second groove that is arranged to intersect with the first groove and to be extended in a circumferential direction. The first groove is formed to be extended at least from the second groove toward a valve portion-side.

Solenoid valve

Provided is a valve unit including a first gas flow channel to a gas tank and a second gas flow channel branching off from the first gas flow channel and leading to a gas-consuming device. The valve unit can avoid the entrance of water, which may be included in gas, into the second gas flow channel. The first gas flow channel to let gas from the outside in has a bend. The first gas flow channel has a communication port to the gas tank at an end downstream of the bend. A second gas flow channel branches off at a branching part between the bend and the communication port, and the second gas flow channel leads to the gas-consuming device. A straightening member is disposed between the bend and the branching part, and is to straighten the gas flow from the upstream to be parallel to the direction of the first gas flow channel.

Valve unit

In a gas supply system, a control portion acquires a first temperature and a first pressure of a gas in a fuel tank, and a first output signal value of a pressure sensor corresponding to the first pressure before gas supply, acquires a first amount of the gas in the fuel tank using a fuel tank volume, the first temperature, and the first pressure, acquires a second amount after gas supply, through integration of a measurement value obtained by a flowmeter during gas supply, acquires a second temperature, a second pressure, and a second output signal value corresponding to the second pressure after gas supply, calculates a third pressure using the fuel tank volume, the second amount, and the second temperature, and corrects a relationship between an output signal and the pressure using the first pressure, the first output signal value, the third pressure, and the second output signal value.

Gas supply system and correction method

A vehicle () equipped with gas tanks () has a common channel () and branch channels () that branch from the common channel () to the gas tanks (), as a filling passageway () through which gas is supplied from an external gas station () to the gas tanks (). The gas tank () is better in heat dissipation characteristic than the gas tank (). Only the branch channel () that corresponds to the gas tank () is provided with a shutoff valve () or a flow regulation valve () that is capable of restricting the amount of gas supplied to the gas tank ().

Vehicle

A fuel leakage detection system comprises: a communication part for acquiring data relating to fuel filling of an onboard fuel tank from the vehicle side when a fuel supply part is connected to a filler port; a fuel flow rate measurement part, provided on the upstream of the fuel supply part 18, for measuring the flow rate of fuel flowing to the fuel supply part; a fuel flow-out permission part for permitting/stopping the outflow of fuel to the fuel supply part; and a control unit for controlling the fuel flow-out permission part. The control unit further comprises a fuel leakage detection part for detecting fuel leakage when filling fuel to a vehicle based on the fuel flow rate acquired by the fuel flow rate measurement part and on data relating to fuel filling acquired from the vehicle side via the communication part, and the fuel flow out permission part stops outflow of fuel to the fuel supply part when occurrence of fuel leakage is detected by the fuel detection part.

Fuel leakage detection system and detection method

A damage detection system includes an electromagnetic valve that is provided at a first end of a pressure vessel and operated by supplied electric power, a harness that is disposed so as to at least partially extend along at least a part of a bottom surface of the pressure vessel and that serves to supply electric power to the electromagnetic valve, and a damage detector for detecting damage of the pressure vessel based on an input of a pressing force from the bottom surface side of the pressure vessel.

Growing community of inventors

Toyota, Japan

Hiroki Yahashi