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Idle stop control device for vehicle

A technology of idling stop and control device, which is applied in the direction of engine control, transmission control, and components with teeth, etc. It can solve problems such as deterioration of starting response and vibration, and achieve the effect of avoiding slipping of friction elements and suppressing energy consumption

Inactive Publication Date: 2012-01-25
MAZDA MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the switching operation to the drive position is performed again at the start of the vehicle, the friction elements are coupled again, due to the coupling delay, the starting responsiveness after engine restart deteriorates, and vibration occurs at the timing of the friction elements coupling

Method used

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  • Idle stop control device for vehicle
  • Idle stop control device for vehicle
  • Idle stop control device for vehicle

Examples

Experimental program
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Embodiment Construction

[0059] Hereinafter, embodiments of the present invention are described.

[0060] First, an automatic transmission to which an idle stop control device is applied according to a first embodiment of the present invention will be described. main components as in Figure 1A and Figure 1B Schematically shown in , the automatic transmission 1 is suitable for a vehicle with a transversely installed engine, such as a front-engine front-drive vehicle, and includes main constituent elements, such as a torque converter 3 connected to an engine output shaft 2, from the torque converter 3 through The first clutch 10 and the second clutch 20 to which the input shaft 4 receives power, and the transmission mechanism 30 to which power is input from the first clutch 10 , the second clutch 20 and the input shaft 4 . These components are arranged along the axis of the input shaft 4 and accommodated in the gearbox 5 .

[0061] In addition, between the torque converter 3 and the first clutch 10 ...

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PUM

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Abstract

A vehicle idle stop system is disclosed. The idle stop system comprises an engine, an automatic transmission, a first oil pump driven by said engine and generating hydraulic pressure which is supplied to a friction element of said automatic transmission, a second oil pump capable of operating and generating hydraulic pressure which is supplied to a friction element of said automatic transmission during an engine stop, and a controller. The controller is configured to control the engine to stop when a predetermined engine stop condition is satisfied, and to control the second oil pump to supply hydraulic pressure to a predetermined friction element coupled to a forward starting gear of the automatic transmission, the hydraulic pressure supplied to couple the predetermined friction element when the engine is automatically stopped and when a gear range of the automatic transmission is in a neutral range.

Description

technical field [0001] The invention relates to a vehicle such as an automobile, especially an idling stop control device for a vehicle with an automatic transmission, and belongs to the field of vehicle driving control technology. Background technique [0002] In recent years, when a vehicle stops at an intersection, etc., the engine is automatically stopped when a predetermined stop condition is satisfied, and the engine is automatically restarted when a predetermined restart condition is satisfied, and vehicles that perform so-called "idle stop control" have been put into practical use. [0003] When idling stop control is implemented in a vehicle equipped with an automatic transmission, an oil pump driven by the engine to supply operating pressure to each friction element of the automatic transmission is also stopped at the moment the engine is stopped. Therefore, once released, the friction element that was being coupled before the vehicle stops (in other words, the fri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/11B60W30/00F02D29/00B60W10/04B60W10/06F16H61/40F02D29/02B60W10/10F16H61/02
CPCB60W10/06B60W10/115F16H61/0206F16H2312/14B60W30/18018F16H61/0031F02N11/103
Inventor 镰田真也小林素身佐治恒士郎
Owner MAZDA MOTOR CORP
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