Invention Grant
- Patent Title: Engine start control apparatus for hybrid vehicle
- Patent Title (中): 混合动力汽车发动机起动控制装置
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Application No.: US14240487Application Date: 2011-08-31
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Publication No.: US09303551B2Publication Date: 2016-04-05
- Inventor: Susumu Kojima , Naoki Nakanishi , Yukihiko Ideshio
- Applicant: Susumu Kojima , Naoki Nakanishi , Yukihiko Ideshio
- Applicant Address: JP Toyota-Shi
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Toyota-Shi
- Agency: Kenyon & Kenyon LLP
- International Application: PCT/JP2011/069793 WO 20110831
- International Announcement: WO2013/030985 WO 20130307
- Main IPC: F02B17/00
- IPC: F02B17/00 ; B60K6/48 ; B60K6/54 ; B60W10/02 ; B60W10/06 ; B60W10/08 ; B60W20/00

Abstract:
In a hybrid vehicle, when using an ignition start to start a direct injection engine while any one of the cylinders has stopped near top dead center, engine revolutions are raised by producing a first explosion in a first cylinder, which is situated before a second cylinder in an ignition sequence and is in an expansion stroke and in which an exhaust value is not open, by directly injecting fuel into the first cylinder and igniting the fuel. Furthermore, assistance in increasing the engine revolutions is started by transmitting assist torque output from a motor-generator to the direct injection engine via a clutch, in a peak section immediately after the start of increase in the engine revolutions. The stopped direct injection engine can be started using a sufficient required assist torque, namely, electrical energy, whereby the electrical energy for engine starting that is always reserved in a battery (accumulator apparatus) is reduced and therefore a travel range is increased and vehicle fuel consumption is improved appropriately.
Public/Granted literature
- US20140209059A1 ENGINE START CONTROL APPARATUS FOR HYBRID VEHICLE Public/Granted day:2014-07-31
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