公开(公告)号：US20180058410A1

公开(公告)日：2018-03-01

申请号：US15686704

申请日：2017-08-25

Applicant: DENSO CORPORATION

Inventor： Tatsuya FUJITA ,  Mitsuhiro MURATA

IPC: F02N11/08 ,  F02D41/38 ,  F02D41/06

Abstract: An engine starting system is provided which is used with a vehicle equipped with a gear driving starter which is energized to bring a pinion gear into engagement with a ring gear of an engine mounted in the vehicle and also to rotate the pinion gear to crank the engine. The engine starting system works to terminate energization of the starter after the starter is energized to start the engine. The engine starting system executes combustion control to control combustion of fuel in the engine so as to develop a first firing event where the fuel is first fired in the engine after the energization of the starter is terminated. This minimizes the gear noise when the engine is being cranked and ensures the stability in starting the engine.

公开(公告)号：US20140041613A1

公开(公告)日：2014-02-13

申请号：US14060915

申请日：2013-10-23

Applicant: Denso Corporation

Inventor： Mitsuhiro MURATA ,  Hideya NOTANI ,  Shinji USAMI ,  Mikio SAITO ,  Yasuyuki YOSHIDA

IPC: F02N11/08

CPC classification number: F02N15/04 ,  F02N11/08 ,  F02N11/0833 ,  F02N11/0844 ,  F02N11/0855 ,  F02N11/087 ,  F02N15/067 ,  F02N2011/0892 ,  F02N2300/2011 ,  H01H51/065 ,  Y02T10/48 ,  Y10T74/132

Abstract: An engine start system which may be employed in automotive idle stop systems. To start an engine, the system brings a pinion gear into engagement with a ring gear coupled to the engine and turns on an electric motor to rotate the ring gear through the pinion gear to crank the engine. When it is requested to start the engine during deceleration of the engine before stop thereof, the system thrusts the pinion into engagement with the ring gear and then turns on the motor to rotate the pinion gear, in other words, delays the activation of the motor until after the pinion gear has engaged the ring gear. This minimizes mechanical impact or noise arising from the engagement of the pinion gear with the ring gear and improves the reliability in engagement with the ring gear during the deceleration of the engine and durability of the system.

Abstract translation: 可用于汽车怠速停止系统的发动机启动系统。 为了启动发动机，系统使小齿轮与联接到发动机的环形齿轮接合，并打开电动机以使齿圈通过小齿轮旋转以使发动机起动。 当在发动机停止之前要求发动机起动发动机时，系统将小齿轮推动与齿圈接合，然后接通电动机以使小齿轮转动，换句话说，延迟电动机的启动 直到小齿轮啮合齿圈。 这使得小齿轮与环形齿轮的接合产生的机械冲击或噪音最小化，并且提高了在发动机减速期间与齿圈接合的可靠性以及系统的耐久性。

公开(公告)号：US20170328331A1

公开(公告)日：2017-11-16

申请号：US15592365

申请日：2017-05-11

Applicant: DENSO CORPORATION

Inventor： Tatsuya FUJITA ,  Ryosuke UTAKA ,  Mitsuhiro MURATA

IPC: F02N15/04 ,  F02N11/10 ,  F02D41/06

CPC classification number: F02N15/04 ,  F02D41/042 ,  F02D41/062 ,  F02N11/006 ,  F02N11/04 ,  F02N11/0844 ,  F02N11/0848 ,  F02N11/101 ,  F02N2200/041 ,  F02N2200/102 ,  F02N2250/04 ,  F02N2300/102

Abstract: In a system for controlling rotation of torque applied to a rotating shaft of an engine of a vehicle that uses the engine as a drive source thereof, a motor is provided. A main controller controls the engine and the motor. The main controller selectably activates the motor that applies first torque to the rotating shaft of the engine, and deactivates the motor. A rotary electric machine includes a rotor connected to the rotating shaft of the engine. A rotation parameter detector measures a rotation parameter associated with rotation of the rotor of the rotary electric machine. A sequence controller performs, in response to an occurrence of a trigger situation, a control sequence that controls, independently of the main controller, the rotary electric machine based on the rotation parameter measured by the rotation parameter detector, thus applying second torque to the rotating shaft of the engine.

公开(公告)号：US20150316017A1

公开(公告)日：2015-11-05

申请号：US14679445

申请日：2015-04-06

Applicant: DENSO CORPORATION

Inventor： Tarou OKADA ,  Mitsuhiro MURATA

IPC: F02N11/08 ,  H02K7/116 ,  H02K3/12 ,  H02K3/28 ,  F02N15/06 ,  F02N15/02

CPC classification number: F02N11/0851 ,  F02N11/087 ,  F02N15/023 ,  F02N15/067 ,  H02K3/12 ,  H02K3/28 ,  H02K7/116

Abstract: An apparatus for starting an engine, including a motor, an output shaft driven by the motor, a pinion provided along the output shaft, and an electro-magnetic solenoid device. The electro-magnetic solenoid device is configured to push the pinion axially toward a ring gear of the engine to mesh the pinion with the ring gear and transfer a rotational force, which is referred to as a motor torque, generated by energization of the motor from the pinion to the ring gear, thereby starting the engine. The apparatus is configured such that, at starting of the engine in its warmed-up state, the motor torque can continue to be applied from the pinion to the ring gear until at least the second compression stroke even when an engine speed varies.

Abstract translation: 一种用于启动发动机的装置，包括电动机，由电动机驱动的输出轴，沿输出轴设置的小齿轮和电磁螺线管装置。 电磁螺线管装置构造成将小齿轮轴向推向发动机的齿圈以将小齿轮与环形齿轮啮合，并传递由电机通电所产生的称为电动机转矩的旋转力 小齿轮到齿圈，从而启动发动机。 该装置被构造成使得在发动机处于预热状态的启动时，即使当发动机转速变化时，马达转矩也能从小齿轮继续向环形齿轮施加，直到至少第二压缩行程。

公开(公告)号：US20150167617A1

公开(公告)日：2015-06-18

申请号：US14575515

申请日：2014-12-18

Applicant: DENSO CORPORATION

Inventor： Tatsuya FUJITA ,  Kouichi OOSAWA ,  Mitsuhiro MURATA

IPC: F02N11/08

CPC classification number: F02N11/0859 ,  B60W30/18027 ,  F02N11/08 ,  F02N11/0848 ,  F02N2200/101 ,  F02N2200/102

Abstract: In an engine starting apparatus, a starter control unit is configured to, upon command to start the engine, put a starter in a drive ON state to begin cranking of the engine and then put the starter in a drive OFF state at a predetermined timing. The starter control unit is configured to, when acceleration is requested within a predetermined time period from the command to start the engine, keep the starter in the drive ON state even after the time when the starter would be put in the drive OFF state without the acceleration request within the predetermined time period, and drive the starter to torque-assist the engine, thereby performing an assist mode in which both the engine) and the starter serve as drive sources for driving a vehicle.

Abstract translation: 在发动机起动装置中，起动控制单元构成为，在启动发动机的命令时，将起动器置于驱动器接通状态，开始发动机的起动，然后在预定的时刻将起动器置于驱动关闭状态。 起动控制单元被配置为当从启动发动机的命令的预定时间段内请求加速时，即使在起动器将被置于驱动器关闭状态的时间内也将起动器保持在驱动器接通状态，而没有 在预定时间段内加速请求，并且驱动起动器来对发动机进行扭矩辅助，从而执行辅助模式，其中发动机）和起动器都用作驱动车辆的驱动源。

公开(公告)号：US20150167613A1

公开(公告)日：2015-06-18

申请号：US14575320

申请日：2014-12-18

Applicant: DENSO CORPORATION

Inventor： Tatsuya FUJITA ,  Mitsuhiro MURATA

IPC: F02N11/08

CPC classification number: F02N11/0851 ,  F02N11/0822 ,  F02N11/0848 ,  F02N11/0859 ,  F02N2200/022 ,  F02N2200/043 ,  F02N2200/061 ,  F02N2200/102 ,  F02N2200/14

Abstract: An engine starting apparatus includes a starter and a starter control unit configured to control driving of the starter. The starter control unit operates a motor with a pinion engaged with a ring gear to thereby crank an engine, and de-engage the pinion from the ring gear or de-energize the motor to thereby terminate the cranking of the engine. A cranking time from when cranking of the engine is initiated to when a predetermined engine speed equal to or greater than 450 rpm is reached is equal to or less than an acceptable limit of cranking time that does not provide, to a user of a vehicle, noticeable discomfort caused by cranking noise generated during the cranking of the engine.

Abstract translation: 发动机起动装置包括起动器和起动器控制单元，其构造成控制起动器的驱动。 起动器控制单元操作具有与齿圈啮合的小齿轮的马达，从而使发动机起动，并使小齿轮与齿圈啮合，或者使马达断电，从而终止发动机的起动。 当达到等于或大于450rpm的预定发动机转速时，起动发动机起动时的起动时间等于或小于不向车辆用户提供的起动时间的可接受极限， 在发动机起动期间产生的起动噪音引起明显的不适。

公开(公告)号：US20150300311A1

公开(公告)日：2015-10-22

申请号：US14790358

申请日：2015-07-02

Applicant: DENSO CORPORATION

Inventor： Mitsuhiro MURATA ,  Hideya NOTANI ,  Shinji USAMI ,  Mikio SAITO ,  Yasuyuki YOSHIDA

IPC: F02N15/04 ,  F02N11/08

CPC classification number: F02N15/04 ,  F02N11/08 ,  F02N11/0833 ,  F02N11/0844 ,  F02N11/0855 ,  F02N11/087 ,  F02N15/067 ,  F02N2011/0892 ,  F02N2300/2011 ,  H01H51/065 ,  Y02T10/48 ,  Y10T74/132

Abstract: An engine start system which may be employed in automotive idle stop systems. To start an engine, the system brings a pinion gear into engagement with a ring gear coupled to the engine and turns on an electric motor to rotate the ring gear through the pinion gear to crank the engine. When it is requested to start the engine during deceleration of the engine before stop thereof, the system thrusts the pinion into engagement with the ring gear and then turns on the motor to rotate the pinion gear, in other words, delays the activation of the motor until after the pinion gear has engaged the ring gear. This minimizes mechanical impact or noise arising from the engagement of the pinion gear with the ring gear and improves the reliability in engagement with the ring gear during the deceleration of the engine and durability of the system.

Abstract translation: 可用于汽车怠速停止系统的发动机启动系统。 为了启动发动机，系统使小齿轮与联接到发动机的环形齿轮接合，并打开电动机以使齿圈通过小齿轮旋转以使发动机起动。 当在发动机停止之前要求发动机起动发动机时，系统将小齿轮推动与齿圈接合，然后接通电动机以使小齿轮转动，换句话说，延迟电动机的启动 直到小齿轮啮合齿圈。 这使得小齿轮与环形齿轮的接合产生的机械冲击或噪音最小化，并且提高了在发动机减速期间与齿圈接合的可靠性以及系统的耐久性。

公开(公告)号：US20150275837A1

公开(公告)日：2015-10-01

申请号：US14675848

申请日：2015-04-01

Applicant: DENSO CORPORATION

Inventor： Tatsuya FUJITA ,  Mitsuhiro MURATA

IPC: F02N11/08 ,  F02P9/00 ,  F02N15/04

CPC classification number: F02N11/08 ,  F02D41/062 ,  F02D2200/04 ,  F02D2200/1012 ,  F02N11/0848 ,  F02N11/0855 ,  F02N15/04 ,  F02N15/067 ,  F02N2200/022 ,  F02N2200/102 ,  F02P5/045 ,  F02P5/1506 ,  F02P9/00 ,  Y02T10/46

Abstract: An engine starting apparatus including a starter including a motor configured to generate a rotational force, and a pinion configured to transfer the rotational force of the motor to a ring gear. The starter is configured to crank an engine at a specific revolution-speed increase rate to increase a revolution speed of the engine to a predetermined revolution speed equal to or greater than 450 rpm. The apparatus further includes an ignition-timing setter configured to set an ignition timing at which fuel in a combustion chamber of the engine is ignited while the revolution speed of the engine is increased during cranking of the engine by the starter or during coasting of the engine after termination of cranking of the engine by the starter, and an engine-speed predictor configured to predict a revolution speed of the engine at the ignition timing based on the specific revolution-speed increase rate.

Abstract translation: 一种发动机起动装置，包括起动器，其包括构造成产生旋转力的马达和被配置为将马达的旋转力传递到齿圈的小齿轮。 起动器构造成以特定的转速增加速率使发动机起动，以将发动机的转速提高到等于或大于450rpm的预定转速。 该装置还包括点火正时设定器，其被配置为设定点火正时，在该点火正时，发动机的燃烧室内的燃料被点燃，同时发动机的转速在起动器的发动机起动期间或者在发动机的滑行期间增加 在由起动器终止发动机的起动器之后，以及发动机速度预测器，被配置为基于特定的转速增加率来预测发动机在点火正时的转速。

公开(公告)号：US20130321106A1

公开(公告)日：2013-12-05

申请号：US13961188

申请日：2013-08-07

Applicant: DENSO CORPORATION

Inventor： Masami NIIMI ,  Mitsuhiro MURATA ,  Kiyokazu HARUNO

IPC: H01H36/00

CPC classification number: H01H3/28 ,  F02N11/087 ,  F02N15/006 ,  F02N15/067 ,  H01H36/00 ,  H01H50/14 ,  H01H51/065 ,  H02K11/0094

Abstract: An electromagnetic switch is provided which includes: a coil generating magnetomotive force; a frame accommodating the coil and generating a flux path; a resin cover covering an opening of the frame; and a current-supply terminal member energizing the coil. The current-supply terminal member includes: a blade-shaped terminal whose end is connected to the coil and whose another end is drawn out of the resin cover in the axial direction of the electromagnetic switch; and a plate-shaped external connection terminal whose end is joined to an end of the blade-shaped terminal and whose another end is drawn out in the direction intersecting the axial direction. A portion between the ends of the external connection terminal is insert-molded in a terminal anchor block provided with the resin cover. A female terminal of a power supply connector provided at an electric supply line is fitted and electrically connected to the external connection terminal.

Abstract translation: 提供一种电磁开关，其包括：产生磁动势的线圈; 容纳所述线圈并产生磁通路径的框架; 覆盖框架的开口的树脂盖; 以及给线圈通电的供电端子构件。 供电端子构件包括：端部连接到线圈并且另一端沿着电磁开关的轴向从树脂盖拉出的叶片形端子; 以及一个板形的外部连接端子，其端部连接到叶片形端子的端部，并且其另一端在与轴向相交的方向上被拉出。 外部连接端子的端部之间的部分嵌入成型在设置有树脂盖的端子锚块中。 设置在电源线上的电源连接器的母端子被安装并电连接到外部连接端子。

公开(公告)号：US20180149130A1

公开(公告)日：2018-05-31

申请号：US15821239

申请日：2017-11-22

Applicant: DENSO CORPORATION

Inventor： Tatsuya FUJITA ,  Takashi HIRABAYASHI ,  Tasuku YAMADA ,  Mitsuhiro MURATA

IPC: F02N15/06

CPC classification number: F02N15/063 ,  F02N11/00 ,  F02N15/006 ,  F02N15/022 ,  F02N15/065 ,  F02N15/067 ,  F02N2015/061

Abstract: A starter for an internal combustion engine includes a rotating shaft formed with a helical spline on an outer periphery thereof and which rotates by a rotation of a motor, a pinion gear helically splined to the rotating shaft and movable in an axial direction of the rotating shaft along a tooth surface of the helical spline, a lever receiving member disposed opposing an end surface in an axial direction of the pinion gear, moved by receiving an axial pushing force by a pushing member, and causing the pinion gear to engage with a ring gear of the internal combustion engine by a movement thereof, and a buffer member for restricting a movement of the pinion gear in a rotational direction when the pinion gear moves along the teeth surface of the helical spline.