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Device for triggering control of idle speed control of internal combustion engine

A technology of idling speed and control device, applied in the direction of control device, engine control, fuel injection control, etc., can solve the problem that engine flameout cannot be avoided.

Active Publication Date: 2018-06-08
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In addition, there is a method of simply disabling the idle function and idle function adjustment by the automatic box when said box indicates that a transmission gear train upshift is in progress, which method has the disadvantage in some cases that engine stalling cannot be avoided

Method used

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  • Device for triggering control of idle speed control of internal combustion engine
  • Device for triggering control of idle speed control of internal combustion engine

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0029] figure 1 A first embodiment of the invention for a motor vehicle with an internal combustion engine fitted with a manual transmission is shown in .

[0030] A control device 10 is visualized, the function of which is to adapt the triggering conditions for the idle speed regulation and, if appropriate, to limit the triggering conditions for the idle speed regulation during an upshift of the transmission gear train.

[0031] The device includes in memory:

[0032] - a predetermined depression threshold 11 of the clutch pedal,

[0033] - a predetermined speed deviation 12 to be added to the idle speed setpoint to obtain the current speed threshold,

[0034] - a predetermined speed threshold 13 of the vehicle,

[0035] - Max implementation time 14,

[0036] - a predetermined temperature threshold of the engine 15, and

[0037] - A table of predetermined initial speed deviations associated with the transmission gear train, said predetermined initial speed deviations bei...

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PUM

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Abstract

The invention relates to a device (10) for triggering control of an idle speed control of a heat engine of a motor vehicle with a gearbox. The device comprises means for receiving a current value of engine speed (100) and an identification of the gear ratio engaged (110), and means for triggering the idle control in order to avoid stalling the engine when triggering conditions (190, 192) are met.The device also comprises means for restricting, in reaction to the start of an upward gear shift, the conditions for triggering (190, 192) the idle speed control if the speed value (100) at the startof the gear shift is higher than an initial speed threshold selected in accordance with the gear ratio (110) engaged at the start of the gear shift.

Description

technical field [0001] The invention relates to the field of control of the rotational speed of an internal combustion engine of a motor vehicle having a gearbox during an upshift of a transmission gear train. Background technique [0002] When a transmission gear train upshift is about to occur, the engine provides more torque to increase the engine speed (ie, the rotational speed of the engine). Shifting of the transmission gear train occurs after disconnection of the drive train. If the box is automatic, the drive train is disconnected via the reduction gear train. If the box is manual, the drive train is disconnected via the clutch. [0003] During a transmission gear train upshift, the torque requested by the engine is briefly reduced. In the case of a manual transmission, the torque is reduced due to transmission gear train shifts occurring at the same time as the driver lifts his foot on the gas pedal. In the case of an automatic transmission, the torque is reduce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/06B60W10/10F16H61/00F02D41/02F02D41/08B60W30/19F02D41/16B60W30/188
CPCB60W10/06B60W10/10B60W30/1884B60W30/19B60W2510/0638B60W2510/0652B60W2510/1005B60W2520/10B60W2540/10B60W2540/14B60W2710/065F02D41/022F02D41/023F02D41/08F02D41/16F02D2200/101F02D2200/1012F02D2200/602
Inventor P·蓬M·杜尔施特
Owner PEZHO SITROEN AUTOMOBILS SA