Electronic air throttle control device and method

An electronic throttle valve and control device technology, applied in electrical control, engine control, fuel injection control and other directions, can solve the problems of abnormal electronic throttle valve operation, reduced flexibility, poor safety, etc., to improve fuel economy. , Emission Control, Control Precise Effect

Inactive Publication Date: 2009-08-05
CHINA VAGON AUTOMOTIVES HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this technology, the control unit in the electronic throttle is not organically combined with the engine management system, and the target value of the throttle opening is given by the host computer, so the control flexibility is reduced and the cost is also increased
When the opening position sensor

Method used

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  • Electronic air throttle control device and method
  • Electronic air throttle control device and method
  • Electronic air throttle control device and method

Examples

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Embodiment Construction

[0042] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0043] Such as figure 2Shown is the schematic block diagram of the circuit of the electronic throttle control device of the present invention, the main processor and the coprocessor communicate with each other through the serial peripheral interface SPI (Serial Peripheral Interfaace), the main processor and the two throttle position sensor input circuits and The two-way accelerator pedal position sensor input circuit is connected, and the two-way throttle position sensor input circuit and the two-way accelerator pedal position sensor are also respectively connected to the coprocessor, and the main processor is connected to the drive circuit to provide the drive circuit The enabling signal of the work and the pulse width modulation signal controlling the opening of the throttle valve. The coprocessor is connected with the drive circuit...

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PUM

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Abstract

The invention relates to a device and a method for controlling an electrical air damper. The device comprises a main processor, an auxiliary processor and a drive circuit, wherein the main processor is used for providing an enable signal of the drive circuit after being communicated with the auxiliary processor in a handshaking way and outputs a driving signal of the electrical air damper to the drive circuit according to an analog signal transmitted by an analog signal input circuit, the auxiliary processor is used for diagnosing the failure of the analog signal input circuit after being communicated with the main processor in a handshaking way and stopping the work of the drive circuit when a failure is generated, and the drive circuit is connected to the electrical air damper after being connected with a motor and is used for controlling the size of the opening of the electrical air damper by driving the motor to rotate according to the received driving signal of the electrical air damper. In the method, the auxiliary processor diagnoses the failure of the analog signal input circuit all the time and sends alarm information when the failure is generated. In addition, the electrical air damper control device immediately stops the operation of the motor after discovering the failure and enables the motor to return to an original position so as to ensure the safety of an automobile in a incontrollable state, and the electrical air damper control device utilizes the main processor to control the drive circuit so as to realize the precise control of the opening of the electrical air damper.

Description

technical field [0001] The invention relates to a throttle mechanism device and control of an electronically controlled fuel injection system, and the design field of an electronic throttle of an automobile engine, in particular to an electronic throttle control device and method. Background technique [0002] The engine electronic throttle uses a set of sensors, actuators and computer boards to replace the mechanical transmission structure between the accelerator pedal and the engine throttle on traditional cars. The electronic throttle control device is used to control the opening of the electronic throttle. The system can adjust the engine throttle opening according to the driver's intention and power system control requirements, change the engine torque output, and dynamically adjust the transfer function from the accelerator pedal to the throttle according to changes in different working conditions, effectively reducing fuel consumption and emissions, and optimizing driv...

Claims

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Application Information

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IPC IPC(8): F02D41/26F02D43/00
Inventor 李朝晖桂小波
Owner CHINA VAGON AUTOMOTIVES HLDG CO LTD
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