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Wastegate control method, device and storage medium

A technology of a control method and a control device, which is applied to combustion engines, machines/engines, internal combustion piston engines, etc., can solve problems such as increased wear of wastegate shafts and bushings, and achieve the effect of reducing wear

Active Publication Date: 2021-12-24
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a wastegate control method, device and storage medium to solve the problem in the prior art that the wastegate shaft and the bushing are aggravated due to excessively wide opening range of the wastegate after the engine is started

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  • Wastegate control method, device and storage medium
  • Wastegate control method, device and storage medium
  • Wastegate control method, device and storage medium

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Embodiment Construction

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0045] The wastegate control method provided by the embodiment of the present invention can be applied in a wastegate control system, and the wastegate control system includes a catalyst, a wastegate and a wastegate control device, wherein the wastegate is a wastegate of a turbocharger, The turbocharger as figure 1 As shown, it includes motor 1, connecting rod 2, motor end rocker arm 3, volute case 4, bushing 5, scroll end rocker arm 6, wastegate 7 and...

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Abstract

The invention discloses a waste gate control method, device and storage medium. The method part includes: determining the temperature of the catalytic converter after the engine starts, and then determining the opening range of the waste gate according to the temperature of the catalytic converter, and then controlling the waste gate within the opening range. The opening of the wastegate is adjusted; in the present invention, after the engine is started, the opening range of the wastegate is determined according to the actual temperature of the catalytic converter, so as to determine different wastegate opening ranges according to different catalytic converter operating conditions, so that the exhaust gas The opening range of the door changes with the temperature of the catalytic converter, and then the opening of the wastegate is adjusted in different opening ranges, which solves the problem that the wastegate shaft and the lining are too large after the engine is started. The problem of increased wear between the sleeves reduces the wear between the wastegate shaft and the sleeve.

Description

technical field [0001] The invention relates to the field of supercharged engines, in particular to a waste gate control method, device and storage medium. Background technique [0002] As emission regulations become more stringent, the requirements for engine emission control of vehicles are also increasing. In the existing engine emission control, the harmful gas discharged from the engine is generally converted into harmless gas by a catalytic converter. However, the catalytic converter at normal temperature does not have the catalytic ability. The catalyst in the catalytic converter must be heated to the light-off temperature through the exhaust of the engine to have the ability to oxidize or convert harmful gases. Usually the light-off temperature of the catalytic converter is 250-350°C . However, the heating of the catalytic converter by the exhaust gas of the engine usually takes a period of time before the temperature of the catalytic converter reaches the light-of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B37/18
CPCF02B37/18Y02T10/12
Inventor 彭文吴广权雷超群占文锋
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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