公开(公告)号：US20170102354A1

公开(公告)日：2017-04-13

申请号：US15286964

申请日：2016-10-06

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keiichiro AOKI ,  Koji IDE ,  Yoshihisa SERIZAWA

IPC: G01N27/407 ,  G01N27/406

CPC classification number: G01N27/4074 ,  G01N27/4067 ,  G01N27/4071 ,  G01N27/417 ,  G01N27/419 ,  G01N33/0037 ,  G01N33/0054 ,  Y02A50/245 ,  Y02A50/246

Abstract: A multiple gas detection device comprises: a first cell part provided with a first electrochemical cell; a second cell part provided with a second electrochemical cell; a third cell part provided with a third electrochemical cell; an inlet diffusion controller controlling diffusion of measured gas; and a measured gas chamber into which the measured gas flows through the inlet diffusion controller. The first cell part is configured to selectively detect a concentration of NOx or ammonia contained in measured gas in the measured gas chamber. The second cell part is configured to discharge oxygen contained in measured gas in the measured gas chamber and convert NO2 and ammonia contained in measured gas in the measured gas chamber to NO. The third cell part is configured to detect a concentration of NO contained in measured gas in the measured gas chamber.

公开(公告)号：US20180003119A1

公开(公告)日：2018-01-04

申请号：US15637500

申请日：2017-06-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keiichiro AOKI ,  Yoshihisa SERIZAWA

IPC: F02D41/14 ,  G01M15/10 ,  G01N33/00

CPC classification number: F02D41/1495 ,  F02D41/123 ,  F02D41/1455 ,  F02D41/146 ,  F02D41/1461 ,  F02D41/1494 ,  F02D41/222 ,  F02D41/2474 ,  G01M15/102 ,  G01M15/104 ,  G01N33/0006

Abstract: An exhaust sensor 1 comprises a sensor cell 51, a voltage application circuit 61, a current detection circuit 62 and a concentration calculating part 80a. The current detection circuit detects a first current flowing through the sensor cell when fuel cut control is being performed in the internal combustion engine and a predetermined voltage is applied from the voltage application circuit to the sensor cell, and detect a second current flowing through the sensor cell when normal control is being performed in the internal combustion engine and the predetermined voltage is applied from the voltage application circuit to the sensor cell. The concentration calculating part is configured to calculate the concentration higher with respect to the second current when the first current is relatively low compared with when the first current is relatively high.

公开(公告)号：US20170315080A1

公开(公告)日：2017-11-02

申请号：US15499994

申请日：2017-04-28

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keiichiro AOKI ,  Yoshihisa SERIZAWA

IPC: G01N27/406 ,  G01N27/407 ,  F01N11/00

Abstract: A control device of a nitrogen oxide sensor comprises a voltage control part configured to control voltage applied to the pump cell, and a temperature estimation part configured to estimate a temperature of the pump cell. The voltage control part is configured to make the voltage applied to the pump cell a voltage of a starting voltage of decomposition of water or more when the estimated temperature of the pump cell estimated by the temperature estimation part is within a predetermined temperature region of less than an activation temperature of the pump cell as control suppressing evaporation.

公开(公告)号：US20150204370A1

公开(公告)日：2015-07-23

申请号：US14596493

申请日：2015-01-14

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoshihisa SERIZAWA

IPC: F16B33/00

CPC classification number: F16B33/02 ,  F16B2001/0064 ,  H01R4/304 ,  H01R4/34 ,  H01R4/64

Abstract: An earth bolt is electrically connected to a nut and an earth terminal, by being engaged in the nut to position the earth terminal between the bolt and the nut. The bolt has a head and a body, the body extending from the head and having threads of an external thread formed on the body and screw-fastened to an internal thread of the nut. Among the flank surfaces formed on the thread, a convex portion is formed on a head-facing flank surface, the head-facing flank surface facing the head, along a circumference centering a shaft center of the body in such a manner that the convex portion is protruded from the head-facing flank surface. A top surface parallel to the head-facing flank surface is formed on the convex portion in a position where the convex portion interests with a pitch line of the earth bolt.

Abstract translation: 接地螺栓通过接合螺母将接地端子定位在螺栓和螺母之间，电连接到螺母和接地端子。 螺栓具有头部和主体，主体从头部延伸并具有形成在主体上的外螺纹的螺纹，并且螺纹紧固到螺母的内螺纹。 在形成在螺纹上的侧面中，凸起部分形成在面向头部的侧面上，面向头部的头部朝向侧面沿着以身体的轴心为中心的圆周以凸出部分的方式形成 从头朝向的侧面突出。 平面于头朝向侧面的顶表面形成在凸起部分的凸起部分与接地螺栓的节距线相关的位置。