(19)
(11) EP 2 613 042 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
28.08.2013 Bulletin 2013/35

(43) Date of publication:
10.07.2013 Bulletin 2013/28

(21) Application number: 11866438.2

(22) Date of filing: 29.09.2011
(51) International Patent Classification (IPC): 
F02D 17/00(2006.01)
 F02D 29/02(2006.01)
(86) International application number:
PCT/JP2011/072343
(87) International publication number:
WO 2013/046387 (04.04.2013 Gazette 2013/14)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(71) Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Toyota-shi, Aichi-ken, 471-8571 (JP)

(72) Inventors:
  • KONDO, Yumi
    Toyota-shi, Aichi-ken, 471-8571 (JP)
  • YOSHITOMI, Yuuya
    Toyota-shi, Aichi-ken, 471-8571 (JP)
  • KAWAI, Toshihiro
    Toyota-shi, Aichi-ken, 471-8571 (JP)

(74) Representative: Kuhnen & Wacker 
Patent- und Rechtsanwaltsbüro Prinz-Ludwig-Strasse 40A
85354 Freising
85354 Freising (DE)

   


(54) ENGINE STARTUP DEVICE AND CONTROL METHOD


(57) A starter includes a pinion gear that can be engaged with a ring gear coupled to a crank shaft of an engine, an actuator that moves the pinion gear to a position where the pinion gear is engaged with a ring gear, and a motor that rotates the pinion gear. An ECU stops the engine when a predetermined stop condition is satisfied, and cranks the engine with a motor when a predetermined start condition is satisfied after the engine is stopped. The motor and the actuator are supplied with electric power from a battery. The ECU includes a mode in which the motor is driven prior to driving of the actuator. The ECU restricts a stop of the engine if, of a decreased voltage of the battery after driving the motor and a decreased voltage of the battery after driving the actuator, the lower voltage falls below a threshold value.