公开(公告)号：US20210376353A1

公开(公告)日：2021-12-02

申请号：US17235231

申请日：2021-04-20

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryouichi NAMBA ,  Junichi MATSUO ,  Hiroyuki TSUNEKAWA

IPC: H01M8/04746 ,  H01M8/04225 ,  H01M8/04223 ,  B60L58/40 ,  B60L53/54 ,  H01M8/04828 ,  H01M8/04537

Abstract: During performance of low efficiency power generation, a control device controls the flow rate of feed of the oxidizing agent gas so that the amount of heat generation of the fuel cell accompanying power generation loss becomes a first amount of heat generation when the state of a mount on which the fuel cell system is mounted is a first mode and controls the flow rate of feed of the oxidizing agent gas so that the amount of heat generation becomes a second amount of heat generation smaller than the first amount of heat generation when the state of the mount is a second mode where the generated electric power of the fuel cell fluctuates more easily compared with the first mode.

公开(公告)号：US20210367282A1

公开(公告)日：2021-11-25

申请号：US17319268

申请日：2021-05-13

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Junichi MATSUO

IPC: H01M10/44 ,  H01M8/04746

Abstract: A fuel cell system installed in a vehicle, the system comprising: a fuel cell, a secondary cell, a system temperature acquirer for acquiring a temperature of an inside of the fuel cell system, and a controller, wherein, when the system temperature is a predetermined first temperature or less, the controller charges the secondary cell until a state-of-charge value of the secondary cell reaches a predetermined first threshold value, and the controller carries out a first pattern purge on the fuel cell, and wherein, when the system temperature exceeds the predetermined first temperature, the controller charges the secondary cell until the state-of-charge value of the secondary cell reaches a predetermined second threshold value that is larger than the predetermined first threshold value, and the controller carries out a second pattern purge having a shorter purge time than the first pattern purge on the fuel cell.

公开(公告)号：US20200036017A1

公开(公告)日：2020-01-30

申请号：US16505847

申请日：2019-07-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Junichi MATSUO ,  Tomotaka ISHIKAWA ,  Tomohiro OGAWA ,  Tomio YAMANAKA

IPC: H01M8/04223 ,  H01M8/04228 ,  H01M8/04828 ,  H01M8/04955 ,  H01M8/04119

Abstract: A fuel cell system comprises a fuel cell, a gas-liquid separator, a drain flow path through which moisture is discharged from the gas-liquid separator, a valve configured to control discharge of the moisture from the gas-liquid separator, and a controller configured to control fuel cell operation and opening and closing of the valve, and determine whether the valve is frozen. Upon receipt of a stop request of the fuel cell during the fuel cell operation, the controller repeatedly determines whether the valve is frozen. If the controller determines that the valve is frozen, it continues the fuel cell operation until it determines that the valve is not frozen. If the controller determines that the valve is not frozen, it executes stop processing of the fuel cell including opening valve processing.

公开(公告)号：US20170002709A1

公开(公告)日：2017-01-05

申请号：US15039462

申请日：2014-11-27

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Akira MIKAMI ,  Shigeki NAKAYAMA ,  Nobumoto OHASHI ,  Keishi TAKADA ,  Junichi MATSUO

IPC: F01N3/20 ,  F01N13/00 ,  B01D53/94 ,  F01N11/00

CPC classification number: F01N3/208 ,  B01D53/9418 ,  B01D53/9431 ,  B01D53/9495 ,  F01N9/00 ,  F01N11/002 ,  F01N11/007 ,  F01N13/008 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2900/1402 ,  F01N2900/1602 ,  Y02T10/24 ,  Y02T10/47

Abstract: An exhaust gas purification apparatus for an internal combustion engine comprises: a selective catalytic reduction (SCR) catalyst selectively reducing NOx in an exhaust gas of the internal combustion engine using ammonia as a reducing agent; a supply device adding an additive agent, such as ammonia, to the exhaust gas at an upstream side of the SCR catalyst; and a controller, when a temperature of SCR catalyst is higher than a predetermined temperature, increases a NOx concentration of the exhaust gas flowing into the SCR catalyst and increases an amount of addition of the additive agent in such a manner that a ratio of an amount of ammonia with respect to an amount of NOx contained in the exhaust gas flowing into the SCR catalyst, becomes large, as compared to when the temperature is equal to or less than the predetermined temperature.

Abstract translation: 一种内燃机的排气净化装置，其特征在于，包括：选择性催化还原（SCR）催化剂，其使用氨作为还原剂选择性地还原内燃机的废气中的NOx; 在SCR催化剂的上游侧向废气中添加氨等添加剂的供给装置; 以及控制器，当SCR催化剂的温度高于预定温度时，增加流入SCR催化剂的废气的NOx浓度，并且以增加添加剂的添加量的方式增加添加剂的添加量 相对于流入SCR催化剂的排气中含有的NOx的量，与当温度等于或小于预定温度相比变大。

公开(公告)号：US20210367253A1

公开(公告)日：2021-11-25

申请号：US17319245

申请日：2021-05-13

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Junichi MATSUO

IPC: H01M8/04537 ,  H01M16/00

Abstract: A fuel cell system comprising: the fuel cell, the secondary cell and a controller, wherein, when a power generation pretreatment of the fuel cell is carried out, and when there is a request from the fuel cell to run the vehicle by output power of the secondary cell, the controller calculates discharge permission energy of the secondary cell, calculates a running permission delay request time from the discharge permission energy, which is a time necessary from the request to run the vehicle to the permission to run the vehicle, and measures a running permission delay time, which is a time that elapsed from the request to run the vehicle, and wherein, when the running permission delay request time value is smaller than the running permission delay time value, the controller permits the vehicle to run.

公开(公告)号：US20200036023A1

公开(公告)日：2020-01-30

申请号：US16438620

申请日：2019-06-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tomohiro OGAWA ,  Tomotaka ISHIKAWA ,  Shinji ASOU ,  Tomio YAMANAKA ,  Junichi MATSUO ,  Ryosuke OYA

IPC: H01M8/04701 ,  H01M8/04225 ,  H01M8/04302 ,  H01M8/0432 ,  H01M8/04082 ,  H01M8/04029 ,  B60L58/33 ,  B60L58/34

Abstract: A fuel cell vehicle comprises a fuel cell, a power storage device, a drive motor, a temperature sensor configured to measure a temperature of the fuel cell, a detector configured to detect an operation condition of the fuel cell, and a controller. At a start time of the fuel cell, in a case where the temperature of the fuel cell detected by the temperature sensor is below a freezing point, when an output condition of the fuel cell shown by the detected operation condition of the fuel cell continuously corresponds to a predetermined low output condition for a predetermined reference time period or longer, the controller sets a driving state of the fuel cell vehicle to a first driving state that stops power generation of the fuel cell, drives the drive motor by using only the power storage device as a power source and limits a motor output of the drive motor to be equal to or lower than a predetermined first upper limit output.

公开(公告)号：US20190283613A1

公开(公告)日：2019-09-19

申请号：US16351665

申请日：2019-03-13

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takao WATANABE ,  Junichi MATSUO

IPC: B60L15/20 ,  B60W30/18 ,  B60L50/75 ,  B60L58/40

Abstract: A power generation amount of a power generator disposed on a vehicle is appropriately controlled by ordering the power generator a required power generation amount so as to control the power generator, driving a drive motor configured to drive a driving wheel of the vehicle using at least part of electric power generated by the power generator according to the required power generation amount, storing at least part of surplus power left in the electric power generated by the power generator in a storage device, detecting a slip of the driving wheel, and, executing reduction processing of a power generation amount for further reducing a required power generation amount that reflects a reduction amount of the electric power for driving the drive motor due to the slip of the driving wheel, if the detected extent of the slip is larger than a predetermined threshold.

公开(公告)号：US20180198145A1

公开(公告)日：2018-07-12

申请号：US15843377

申请日：2017-12-15

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takao WATANABE ,  Shinji ASO ,  Akihiro KAMIYA ,  Tomoya OGAWA ,  Junichi MATSUO

IPC: H01M8/04992 ,  H01M16/00 ,  H01M8/04858 ,  H01M8/04828 ,  H02P29/40 ,  B60L11/18

CPC classification number: H01M8/04992 ,  B60L11/1887 ,  B60L2240/42 ,  H01M8/04932 ,  H01M8/04947 ,  H01M16/006 ,  H01M2220/20 ,  H01M2250/20 ,  H01M2250/402 ,  H02P29/40 ,  Y02B90/12 ,  Y02T10/642 ,  Y02T90/32 ,  Y02T90/34

Abstract: A fuel cell system for a vehicle includes: a fuel cell; a plurality of loads that consumes power generated by the fuel cell and includes a vehicle driving motor; a secondary battery configured to be charged with excess power when an amount of power generated by the fuel cell is greater than an amount of power consumed by the loads and to discharge shortage power when the amount of power generated by the fuel cell is less than the amount of power consumed by the loads; and a control unit configured to control the amount of power generated by the fuel cell such that an amount of charging-discharging power of the secondary battery is maintained at a predetermined value.

公开(公告)号：US20170234186A1

公开(公告)日：2017-08-17

申请号：US15432151

申请日：2017-02-14

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hirotaka SAITOH ,  Yoshihisa TSUKAMOTO ,  Yuriko HAGIMOTO ,  Junichi MATSUO ,  Yasumasa NOTAKE

IPC: F01N3/20

CPC classification number: F01N3/208 ,  F01N3/2066 ,  F01N2610/02 ,  F01N2610/14 ,  F01N2610/1406 ,  F01N2610/144 ,  F01N2610/1493 ,  F01N2900/08 ,  F01N2900/1404 ,  Y02T10/24

Abstract: An exhaust gas control apparatus for an internal combustion engine includes an addition valve, a tank, a urea water passage, a pump, a nitrogen oxides catalyst, and an electronic control unit. The electronic control unit is configured to: control the pump, as a first control, such that a specified amount of the urea water stored in the addition valve and the urea water passage is returned to the tank after the internal combustion engine is stopped; control the pump, as a second control, such that the specified amount or more of the urea water in the tank is discharged from the tank to the urea water passage after the first control is executed; and control the pump, as a third control, such that all the urea water stored in the addition valve and the urea water passage is returned to the tank after the second control is executed.

公开(公告)号：US20150361858A1

公开(公告)日：2015-12-17

申请号：US14737602

申请日：2015-06-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Junichi MATSUO ,  Nobumoto OHASHI ,  Akira MIKAMI ,  Keishi TAKADA ,  Shigeki NAKAYAMA

IPC: F01N11/00 ,  F01N3/28 ,  F01N3/20

CPC classification number: F01N11/00 ,  F01N3/2066 ,  F01N3/2896 ,  F01N13/0093 ,  F01N13/011 ,  F01N2610/02 ,  F01N2610/144 ,  F01N2610/1466 ,  F01N2610/148 ,  F01N2610/1493 ,  F01N2900/1808 ,  F01N2900/1822 ,  Y02T10/24

Abstract: An object is to suppress the occurrence of a failure in supply of urea water as much as possible in filling control of urea water in a pump share-type urea water supply system with two supply valves. In the pump share-type urea water supply system with a first supply valve and a second supply valve, a urea water tank is connected with the respective supply valves by a urea water supply path. The urea water supply path includes a first supply path for the first supply valve and a second supply path for the second supply valve. The second supply path has a larger capacity than the capacity of the first supply path by a predetermined volume. Filling control of urea water pressure-feeds urea water to the first supply valve and the first supply path by a pump operated in a specified operating state in a state that at least the first supply valve out of the first and second supply valves is opened, and closes the first supply valve based on a pressure value or a pressure variation per unit time obtained by an acquirer.

Abstract translation: 目的是在具有两个供给阀的泵共用型尿素供水系统中，尽可能地抑制尿素水的供给发生故障的发生。 在具有第一供给阀和第二供给阀的泵共用型尿素供水系统中，通过尿素水供给路径将尿素水箱与各供给阀连接。 尿素水供给路径包括第一供给阀的第一供给路径和第二供给阀的第二供给路径。 第二供应路径具有比第一供应路径的容量大一预定体积的容量。 在第一和第二供给阀中的至少第一供给阀打开的状态下，通过在指定的运转状态下运转的泵对尿素水进行加压控制，将尿素水加压到第一供给阀和第一供给路径， 并且基于由收单者获得的每单位时间的压力值或压力变化来关闭第一供给阀。