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Non-intelligent electronic actuator control method and device for variable cross-section supercharger

An electronic actuator, non-intelligent electronic technology, applied in mechanical equipment, engine control, machine/engine, etc., can solve problems such as blade operating range changes

Active Publication Date: 2022-03-29
DONGFENG AUTOMOBILE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The variable cross-section supercharger without an integrated control module in the electronic actuator cannot limit the motor itself, and the operating range of the blades may change due to wear of the mechanical structure when the engine is running for a long time
Or when driving instantaneously near the limit boundary, there is a risk that the blade position will exceed the operating limit range

Method used

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  • Non-intelligent electronic actuator control method and device for variable cross-section supercharger
  • Non-intelligent electronic actuator control method and device for variable cross-section supercharger

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specific Embodiment

[0041] Such as figure 2 Shown, a specific embodiment that the present invention proposes is as follows:

[0042] 1. According to the mechanical characteristics of the supercharger itself, and considering the ECU power supply voltage, set the feedback voltage of the minimum flow position of the electronic actuator and the full-open mechanical stop position to 0.5V and 4.7V respectively, and the supercharger operates at the minimum flow position, The fully open mechanical stop position can provide booster pressure ratios of 0.3 and 2, respectively.

[0043] 2. The required pressure ratio of the actual air intake of the engine is 0.5-1.8. When the supercharger reaches this required value, the feedback voltage of the electronic actuator is 0.7V and 4.5V respectively. The relationship between the driving range of the electronic actuator, the actual demand range, the starting and ending position feedback voltage and the ECU input voltage: 0<0.5<0.7<4.5<4.7<5V.

[0044] 3. Accordi...

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Abstract

The invention discloses a control method and equipment for a non-intelligent electronic actuator of a variable cross-section supercharger. The method and equipment first set the driving range of the actuator according to the mechanical structure of the supercharger, and then select the actual driving range according to the operating requirements of the engine. Range, the buffer area is set according to the actual driving range and the characteristics of the actuator motor, thus the relative area of ​​the actuator movement is given; then the feedback voltage obtained through self-learning corrects the assignment in the electronic actuator, so that the execution can be effectively controlled The operating range of the nozzle can avoid the risk of nozzle vane position exceeding the operating limit range.

Description

technical field [0001] The invention relates to the technical field of automobile engines, in particular to a control method and equipment for a non-intelligent electronic actuator of a variable cross-section supercharger. Background technique [0002] In the field of turbochargers equipped with automobile engines, there are two types of common turbochargers: a structure with a wastegate valve, and a structure with a variable-section nozzle. For an engine with a variable nozzle supercharger, all the exhaust gas generated passes through the variable nozzle mechanism, and the energy utilization rate of the exhaust gas is higher, so the engine is easier to achieve faster response and higher power. [0003] The variable nozzle structure is a ring structure composed of a series of blades with variable angles. The drive ring of the blades is connected to the external drive motor through the crank, and the drive motor receives the signal action of the ECU. When the ECU sends a dri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B37/24F01D17/16
CPCF02B37/24F01D17/16F05D2270/62F05D2220/40Y02T10/12
Inventor 赵昌鹏金明王善元李书伟毛勇余国强邓基峰贾育恒谢德海高光哲李利员王芳刘凯
Owner DONGFENG AUTOMOBILE COMPANY
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