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Engine restart apparatus

A technology for restarting the engine, which is applied in the direction of starting the engine, starting the engine with an electric motor, and a starting device with a mechanical power storage, and can solve the problem of increasing the specification level of the alternator, increasing the weight of the ISG vehicle, and increasing the battery load, etc. problem, to achieve the effect of increasing weight, preventing the reduction of durability, and reducing the starting torque

Inactive Publication Date: 2013-03-06
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] However, the starter motor 300 with a high level of specification requires a large amount of electric power when starting the engine, thereby further increasing the battery load, and the specification level of the battery should be increased, so that the specification level of the alternator must be increased, which inevitably increases the ISG vehicle weight and reduce its fuel efficiency

Method used

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Embodiment Construction

[0042] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be appreciated that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments but also various alternatives, modifications, equivalents and others which may be included within the spirit and scope of the invention as defined by the appended claims. implementation.

[0043] refer to figure 1 As shown, the engine restart device includes a double-mass type flywheel unit 5, a power control circuit 20 and a controller 30. The flywheel unit 5 is arranged before the power connector 3, and the power connector 3 is connected between the engine 1 and the power train (power train) 2 to connect or disconnect the po...

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Abstract

An engine restart apparatus for improving fuel efficiency and reducing torque of an engine may comprise a double-mass type flywheel unit including a main flywheel rotating with an engine connected to a power train and having a ring gear to receive a power from a starter motor and a sub-flywheel rotatably fitted on a crankshaft of the engine and selectively connected to the main flywheel, a power control circuit forming an electric circuit connecting a battery with the sub-flywheel, and a controller combining the sub-flywheel with the main flywheel by connecting an electric current supplied to the sub-flywheel through a power control circuit or separating the sub-flywheel from the main flywheel by cutting the electric current supplied to the sub-flywheel, in accordance with the engine load condition, the engine start condition, and the vehicle mode condition.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2011-0082881 filed on Aug. 19, 2011, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to a vehicle having an Idle Stop and Go (ISG) function, and more particularly, the present invention relates to an engine restart device which reduces The unnecessary waste of small kinetic energy can greatly improve the fuel efficiency while preventing the durability of the starter motor from deteriorating. Background technique [0004] In general, an idle stop and go (ISG) function is used to control the stopping of engine idling, and can achieve fuel economy effects by repeatedly starting and stopping the engine according to road conditions. [0005] For such functionality, the ISG logic gives commands to stop the engine at idle in response to input information such as veh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02N11/08
CPCF02D2250/24F02N11/0814F02N5/04Y02T10/48F02D41/123Y02T10/40F02D29/02F02N15/02F02N15/06F16C15/00
Inventor 朴宰贤金才熊朴俊炯金尚勋
Owner HYUNDAI MOTOR CO LTD
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