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：US20140239641A1

公开(公告)日：2014-08-28

申请号：US14268596

申请日：2014-05-02

Applicant: DENSO CORPORATION

Inventor： Kiyokazu HARUNO ,  Mitsuhiro MURATA ,  Mikio SAITO ,  Masami NIIMI

IPC: F02N11/08

CPC classification number: F02N11/087 ,  F02N15/067 ,  F02N2011/0892 ,  H01H51/065 ,  Y10T74/134

Abstract: In a starter for starting an on-vehicle engine, a solenoid is provided to push a pinion gear. The solenoid has an electromagnetic coil composed of a single coil and electrically separated from a motor circuit, a fixed core, and a plunger. Supply of excitation current to the electromagnetic coil allows the fixed core to be magnetized to attract the plunger. Hence, a movement of the plunger results in a push of the movable member toward the ring gear. A switch is provided in the circuit and has a contact, a movable core, and a switch coil functioning as an electromagnet attracting the movable core in response to supply of current to the switch coil. A movement of the movable core results in on/off switching operations of the switch. The switch is allowed to operate independently of the solenoid when both the switch and solenoid are controlled.

Abstract translation: 在用于启动车载发动机的起动器中，设置螺线管以推动小齿轮。 螺线管具有由单个线圈组成的电磁线圈，并且与电动机电路，固定铁芯和柱塞电分离。 向电磁线圈供应励磁电流使得固定磁芯被磁化以吸引柱塞。 因此，柱塞的运动导致可动件向环形齿轮的推动。 开关设置在电路中，并且具有接触件，可动铁芯和用作响应于向开关线圈提供电流而吸引可动铁芯的电磁体的开关线圈。 可动芯的运动导致开关的开/关切换操作。 当开关和螺线管都被控制时，开关允许独立于螺线管工作。

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。