公开(公告)号：US20230228330A1

公开(公告)日：2023-07-20

申请号：US18190428

申请日：2023-03-27

Applicant: DENSO DAISHIN CORPORATION ,  DENSO CORPORATION

Inventor： Kota TAKEUCHI ,  Toru SHIMIZU ,  Satoshi NAGASAKA ,  Katsuhisa SAITO

IPC: F16K1/22 ,  F16K31/04 ,  F02D9/10

CPC classification number: F16K1/221 ,  F16K31/043 ,  F16K1/224 ,  F16K1/222 ,  F02D9/107

Abstract: A throttle valve device includes a shaft in a cylindrical passage, a slit passing through the shaft from one lateral side to another lateral side of the shaft, a pair of bearings on both sides of the cylindrical passage and rotatably supporting one end part and another end part of the shaft, and a circular-plate valve inserted into the slit of the shaft and rotatable to open and close the cylindrical passage. A length of the slit on the one lateral side of the shaft is, in an axial direction of the shaft, longer than a length of the slit on the other lateral side of the shaft. A round end hole is formed at an end of the slit in the one end part of the shaft on the one lateral side of the shaft.

公开(公告)号：US20220397069A1

公开(公告)日：2022-12-15

申请号：US17836345

申请日：2022-06-09

Applicant: DENSO DAISHIN CORPORATION ,  DENSO CORPORATION

Inventor： Akito SAKAKIBARA ,  Toru SHIMIZU

IPC: F02D9/10 ,  F02D11/10 ,  F16K31/04

Abstract: A throttle valve device includes a coil spring arranged in a body between a valve gear and a valve and having a spring end extending radially outward. A first guide covers an end of the coil spring and includes a first guide hook that contacts the spring end. A body hook in the body is capable of contacting a tip end part of the first guide hook. A valve gear hook in the valve gear is capable of contacting a base end part of the first guide hook. The first guide hook has a protrusion protruding toward the spring end between the tip end part and the base end part. The first guide hook is deformable by receiving the spring force at the protrusion as an effort while a fulcrum is at a contact between the first guide hook and the body hook or the valve gear hook.

公开(公告)号：US20130155562A1

公开(公告)日：2013-06-20

申请号：US13691985

申请日：2012-12-03

Applicant: Denso Corporation

Inventor： Takamitsu KUBOTA ,  Yoshiyuki KONO ,  Toru SHIMIZU

IPC: H02H3/20

CPC classification number: H02H3/20 ,  B60K37/02 ,  B60W2510/0604 ,  F02D11/106 ,  F02D2200/0404 ,  G01D5/145 ,  G01D5/24428 ,  H02H3/202

Abstract: A high-side output transistor and a low-side output transistor of an output circuit control voltages of conductors, which connect a power supply terminal and ground, and outputs a voltage signal to an output terminal through an output conductor. A voltage output circuit detects a voltage applied to the high-side output transistor based on a potential difference of a first resistor provided closer to the output terminal side. A comparator circuit outputs a signal to turn off a first switch and a second switch provided in the conductors, when the output voltage of the voltage output circuit exceeds a reference voltage Vr.

Abstract translation: 输出电路的高边输出晶体管和低边输出晶体管控制导体的电压，连接电源端和地，并通过输出导体将电压信号输出到输出端。 电压输出电路基于靠近输出端子侧的第一电阻器的电位差来检测施加到高侧输出晶体管的电压。 当电压输出电路的输出电压超过参考电压Vr时，比较器电路输出关闭设置在导体中的第一开关和第二开关的信号。

公开(公告)号：US20220412466A1

公开(公告)日：2022-12-29

申请号：US17685484

申请日：2022-03-03

Applicant: DENSO DAISHIN CORPORATION ,  DENSO CORPORATION

Inventor： Kota TAKEUCHI ,  Toru SHIMIZU ,  Satoshi NAGASAKA ,  Katsuhisa SAITO

IPC: F16K1/22 ,  F16K31/04

Abstract: A throttle valve device includes a shaft in a cylindrical passage, a slit passing through the shaft from one lateral side to another lateral side of the shaft, a pair of bearings on both sides of the cylindrical passage and rotatably supporting one end part and another end part of the shaft, and a circular-plate valve inserted into the slit of the shaft and rotatable to open and close the cylindrical passage. A length of the slit on the one lateral side of the shaft is, in an axial direction of the shaft, longer than a length of the slit on the other lateral side of the shaft. A round end hole is formed at an end of the slit in the one end part of the shaft on the one lateral side of the shaft.

公开(公告)号：US20150096533A1

公开(公告)日：2015-04-09

申请号：US14506035

申请日：2014-10-03

Applicant: DENSO CORPORATION

Inventor： Satoru HIRAMOTO ,  Toru SHIMIZU ,  Yoshiyuki KONO

IPC: F02D41/22 ,  F02D41/02 ,  F02D41/14 ,  F02D41/00

CPC classification number: F02D41/222 ,  F02D11/106 ,  F02D41/0002 ,  F02D41/021 ,  F02D41/1497 ,  F02D2011/102 ,  F02D2041/223 ,  F02D2200/0402 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0414 ,  Y02T10/42

Abstract: An ECU loads detected values of a rotation angle sensor and a pressure sensor which are mounted to an electric throttle, and executes an abnormal-sensor determination control to determine whether one of the rotation angle sensor and the pressure sensor is abnormal. Specifically, the ECU determines that one of the rotation angle sensor and the pressure sensor is abnormal, in a case where a state that a tendency of the actual opening angle detected by the rotation angle sensor does not match a tendency of the pressure detected by the downstream pressure sensor has continued for a period greater than or equal to a predetermined period. Therefore, since the pressure sensor can replace the rotation angle sensor used for detecting abnormality in a conventional technology, two rotation angle sensors can be reduced to one rotation angle sensor, and a cost is reduced.

Abstract translation: ECU加载安装在电动节气门上的旋转角度传感器和压力传感器的检测值，并执行异常传感器判定控制，以确定旋转角度传感器和压力传感器中的一个是否异常。 具体而言，在由旋转角度传感器检测到的实际开度的倾向与由所述旋转角度传感器检测到的压力的趋势不一致的情况下，ECU判断为旋转角度传感器和压力传感器中的一个异常 下游压力传感器持续大于或等于预定周期的时间。 因此，由于压力传感器能够代替传统技术中用于检测异常的旋转角度传感器，所以可以将两个旋转角度传感器减小到一个旋转角传感器，并降低成本。

公开(公告)号：US20130166172A1

公开(公告)日：2013-06-27

申请号：US13709362

申请日：2012-12-10

Applicant: DENSO CORPORATION

Inventor： Tetsuya HARA ,  Yoshiyuki KONO ,  Toru SHIMIZU ,  Takamitsu KUBOTA

IPC: F02D45/00

CPC classification number: F02D45/00 ,  F02D11/106 ,  F02D11/107

Abstract: A first integrated circuit includes a first voltage output circuit for outputting a voltage, which proportionally increases in correspondence to an angular position of a throttle valve, a first protective resistor, a first output terminal connected to the first protective resistor, and a first abnormality detection circuit for outputting a first abnormality detection signal based on a voltage produced by the first protective resistor. A second integrated circuit is configured similarly to the first integrated circuit by a second voltage output circuit, a second protective resistor, a second output terminal, and a second abnormality detection circuit.

Abstract translation: 第一集成电路包括：第一电压输出电路，用于输出对应于节流阀的角位置成比例地增加的电压，第一保护电阻，连接到第一保护电阻的第一输出端和第一异常检测 电路，用于基于由第一保护电阻器产生的电压输出第一异常检测信号。 第二集成电路通过第二电压输出电路，第二保护电阻器，第二输出端子和第二异常检测电路与第一集成电路类似地配置。