APPARATUS AND METHOD FOR AUTOMATIC STOP AND RESTART OF ENGINE

• Main Authors: TANABE TSUNEO, FUJIWARA MICHITAKA
• Format: Patent
• Language: English
• Published: 22.04.2013
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDEDFOR; STARTING OF COMBUSTION ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

PROBLEM TO BE SOLVED: To prevent wear of a pinion gear and a ring gear while restraining noise at engagement of the pinion gear and the ring gear.SOLUTION: The apparatus for automatic stop control and restart control includes a ring gear (12), a pinion gear (24), pinion gear moving means (21, 22), and an engine control part (50). The engine control part starts energization to the pinion gear moving means when the engine speed becomes smaller than a rotational frequency enabling engagement during engine inertia rotation as a result of satisfaction of an automatic stop condition. After start of the energization, in the case the engine speed change amount exceeds a predetermined rise detection threshold value before passage of time necessary for contact of the pinion gear to the ring gear, energization to the pinion gear moving means is stopped temporarily. In the case the engine speed change amount exceeds a predetermined decline detection threshold value after the temporary stop of the energization, energization to the pinion gear moving means is restarted.