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Twin-turbo control system and method

A technology of supercharging control and turbocharger, which is applied in electrical control, engine control, fuel injection control, etc., and can solve the problems of insufficient low-end torque and poor starting performance.

Active Publication Date: 2021-10-29
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to propose a twin turbocharger control system and method, aiming to solve the technical problems of poor starting performance and insufficient low-end torque in the prior art

Method used

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  • Twin-turbo control system and method
  • Twin-turbo control system and method

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Embodiment Construction

[0049] It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0050] refer to figure 1 , figure 1It is a schematic diagram of the functional modules of the first embodiment of the twin turbocharger control system of the present invention. The twin turbocharger control system includes: a pressure sensor 10, an electronic control unit 20, a first turbocharger 30 and a second turbocharger 40, wherein the first turbocharger and the second turbocharger The turbocharger is arranged on the engine, and the pressure sensor is arranged in the intake pipe connected with the engine;

[0051] The pressure sensor 10 is used to detect the current pressure value in the intake pipe, and send the current pressure value to the electronic control unit. It should be noted that the pressure sensor may be a pressure temperature sensor or a general pressure sensor, which is not limited in this...

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Abstract

The invention relates to the technical field of engines, and discloses a twin turbocharger control system and method, the twin turbocharger control system comprising: a pressure sensor, an electronic control unit, a first turbocharger and a second turbocharger , and when the engine in the prior art is under low-speed and light-load conditions, the exhaust energy cannot push the turbocharger to do work. When the turbocharger is not working, the engine is only equivalent to a small-displacement naturally aspirated engine. Compared with poor power performance, the present invention sets a pressure sensor and two turbochargers, detects the current pressure value in the intake pipe through the pressure sensor, controls the working state of the two turbochargers according to the current pressure value, and overcomes the In the prior art, the vehicle starting performance is poor and the low-end torque is insufficient, which improves the engine performance.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a twin turbocharger control system and method. Background technique [0002] With the increasingly stringent national fuel consumption regulations, the miniaturization of engine supercharging (using small-displacement turbocharged engines instead of large-displacement naturally aspirated engines) has become the development direction of various automobile manufacturers. Turbocharging uses the exhaust energy after engine combustion to do work to drive the turbine to rotate at high speed to compress fresh air, so as to increase the intake air volume and improve engine power. [0003] However, when the engine is under low-speed and low-load conditions, the exhaust energy cannot push the turbocharger to do work. As the engine speed and load increase, the turbocharger gradually starts to work. This phenomenon is turbocharger hysteresis. When the turbocharger is not working, the engine...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D23/00F02B37/007F02B37/18F02D41/00F02C6/12
CPCF02B37/007F02B37/183F02C6/12F02D23/00F02D41/0007F02D2200/04F02D2200/1002F02D2200/101Y02T10/12
Inventor 陈友祥韩丹李凯王三星欧阳彩云谢有路
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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