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Throttle opening control system and method for internal combustion engine

一种控制系统、节气门的技术，应用在电气控制、发动机控制、机械设备等方向，能够解决没有考虑驱动系统加速冲击、不能充分抑制加速冲击等问题，达到抑制摇回、抑制冲击的效果

Active Publication Date: 2008-03-19
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the throttle opening control system disclosed in the above document, the acceleration shock due to the rocking back of the drive system is not considered, and there may be a problem that the acceleration shock due to the rocking back of the driving system cannot be sufficiently suppressed

Method used

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  • Throttle opening control system and method for internal combustion engine
  • Throttle opening control system and method for internal combustion engine
  • Throttle opening control system and method for internal combustion engine

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Embodiment Construction

[0032] FIG. 1 is a view for explaining a system configuration according to a first embodiment of the present invention. An engine 11 serving as a power source shown in FIG. 1 is mounted on a vehicle, which is not shown. Cylinders 13 are formed in the cylinder block 12 of the engine 11 , and a piston 15 is accommodated in each cylinder 13 so that the piston 15 can reciprocate in the cylinder 13 . Each cylinder 13 cooperates with a cylinder head 14 and the top surface of a corresponding piston 15 to define a combustion chamber 16 within the engine 11 . The engine 11 also includes a crankshaft 17 serving as an output shaft, and a connecting rod 19 that converts reciprocating motion of the piston 15 into rotational motion of the crankshaft 17 .

[0033] An engine rotation speed sensor 20 (which will be referred to as “engine rotation speed NE”) that detects the rotation speed of the crankshaft 17 is placed in the vicinity of the crankshaft 17 .

[0034] Meanwhile, an intake port...

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PUM

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Abstract

During a process of increasing the throttle opening when the accelerator pedal is depressed while the vehicle is in a decelerating condition, first throttle opening holding control for holding the throttle opening substantially constant is performed. During the process of increasing the throttle opening after the first throttle opening holding control is finished, second throttle opening holding control for holding the throttle opening substantially constant again is performed.

Description

technical field [0001] The invention relates to a throttle opening control system and method of an internal combustion engine. Background technique [0002] Electronically controlled throttle valves are widely used in internal combustion engines of motor vehicles. An actuator drives, ie opens and closes, the electronically controlled throttle valve. Accordingly, the opening degree of the throttle valve (which will be referred to as "throttle valve opening degree") can be controlled with a high degree of flexibility or freedom regardless of the amount of depression of the accelerator pedal. [0003] Typically, play or looseness exists in drive systems including, for example, transmissions and differential gearing. When the accelerator pedal is depressed while the vehicle is decelerating (the accelerator pedal is released), the vehicle begins to accelerate and the direction of torque transmitted between the engine and drive system is reversed. Play in the drive system is ab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D9/02
CPCF02D11/105F02D41/10F02D2250/21F02D2250/28
Inventor 花村浩幸
Owner TOYOTA JIDOSHA KK