A turbocharger control method, device and storage medium

A technology of turbocharger and control method, which is applied in electrical control, engine control, fuel injection control, etc., can solve the problems of hysteresis in acceleration response of supercharged engines and reduction in power performance of supercharged engines, so as to improve acceleration responsiveness , Improving power performance and increasing cost

Active Publication Date: 2022-05-31
GUANGZHOU AUTOMOBILE GROUP CO LTD
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Problems solved by technology

[0005] The invention provides a turbocharger control method, device and storage medium to solve the technical problem in the prior art that the acceleration responsiveness of a supercharged engine is affected by the hysteresis phenomenon of the turbocharger, resulting in a reduction in the power performance of the supercharged engine

Method used

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  • A turbocharger control method, device and storage medium
  • A turbocharger control method, device and storage medium
  • A turbocharger control method, device and storage medium

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Embodiment Construction

[0048] Below in conjunction with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely

[0049] The turbocharger control method provided in the embodiment of the present invention can be applied to a turbocharger control system, the

[0053] S10: When the vehicle decelerates and closes the accelerator, determine the required intake air amount of the engine.

[0056] S20: Determine the rotational speed of the turbocharger according to the required intake air amount of the engine.

[0058] For example, the ECU queries the preset turbocharger data according to the required intake air volume of the engine to obtain the engine

[0060] In this embodiment, the turbocharger data obtained by testing the turbocharger is only illustrative,

[0061] S30: Adjust the wastegate of the turbocharger to make the turbocharger work at a determined rotational speed.

[0065]

[0070] S11...

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Abstract

The invention discloses a turbocharger control method, device and storage medium. The method part includes: when the vehicle decelerates and throttles, determining the required intake air volume of the engine, and determining the intake air volume of the turbocharger according to the required intake air volume of the engine. Speed, adjust the wastegate of the turbocharger, so that the turbocharger works at the speed; in the present invention, the speed of the turbocharger is determined according to the demand of the intake air volume of the engine, and the speed of the turbocharger and the wastegate The linkage between them controls the speed of the turbocharger to ensure that the turbocharger has a certain speed when the throttle is closed, so that the turbocharger can quickly reach the target working state when accelerating next time, thereby reducing the speed of the turbocharger. The hysteresis generated when reaching the target working state from a very low speed reduces the hysteresis phenomenon when the turbocharger accelerates without increasing the cost and fuel consumption, thereby improving the engine acceleration response and further improving the engine performance. power performance.

Description

A turbocharger control method, device and storage medium technical field The present invention relates to the field of supercharged engines, and in particular to a turbocharger control method, device and storage medium quality. Background technique During the operation of the vehicle, the acceleration responsiveness of the engine is very critical to the dynamic performance of the vehicle, and the vehicle Power is related to the user's driving experience. Therefore, it is necessary to continuously improve the acceleration response of the engine to meet the increasing demands of users. Strict driving needs. For a supercharged engine, the power performance of the supercharged engine relies on a turbocharger to increase the engine's power. In order to achieve a larger power output, the turbocharger needs to reach a certain speed to increase the intake air of the engine effect. The speed of the turbocharger depends on the amount of exhaust gas produced by the engine ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/00F02B37/18F02D23/00
CPCF02B37/18F02B2037/122Y02T10/12
Inventor 彭文孙云龙雷超群陈良吴广权
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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