JPH01114945U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a throttle valve control device using a motor actuator according to the present invention;
FIG. 2 is a schematic configuration diagram of a throttle valve control device using a motor actuator according to the present invention, FIG. 3 is an operation flowchart depicting the operation of the present invention, and FIG.
The figure is a schematic configuration diagram of a throttle valve control device using a motor actuator according to a conventional example, FIG. 5 is an operation flowchart depicting the operation of the conventional example, and FIG. 6 is provided for explanation of the present invention and the conventional example. It is a diagram. 2... Throttle valve, 4... Motor actuator, 9... First potentiometer (valve opening detection means), 10... Accelerator pedal (valve opening command means), 11... Second potentiometer Meter (valve opening command means), 12...deviation calculation section (deviation calculation means)
, 13...Duty ratio calculation section (duty ratio calculation means), 15...Data storage section (valve opening judgment means), 16...Valve opening judgment section (valve opening judgment means), 17...Peak judgment part (peak judgment means)
, 18... Correction calculation unit (correction calculation means).

Claims (1)

[Scope of utility model registration request] A motor actuator 4 that drives the throttle valve 2 to open and close, a valve opening detection means 9 that detects the current valve opening of the throttle valve 2, and a valve that commands the target valve opening of the throttle valve 2. An opening command means 20, a deviation calculation means 12 that calculates the deviation between the two valve openings based on the current valve opening and the target valve opening of the throttle valve 2, and the deviation calculated by the deviation calculation means 12. and a duty ratio calculation means 13 for calculating the duty ratio of the motor actuator 4 based on the duty ratio calculation means 13, and configured to drive the motor actuator 4 based on the duty ratio calculated by the duty ratio calculation means 13. In the throttle valve control device using the motor actuator, the valve opening determination means 19 determines whether the target valve opening commanded by the valve opening command means 20 has changed within a predetermined sample time; , the deviation calculated by the deviation calculation means 12 is looked up from a data table of deviations stored as a data table of deviations within the predetermined sample time to detect a plurality of peak values; It is determined whether the peak value is larger than a predetermined value, and the peak value of the initial deviation is determined to be larger than the predetermined value, and the target valve opening does not change by the valve opening determining means 19. If it is determined that the initial deviation peak value and 2
A peak determining means 17 performs a judgment to compare the magnitude with a value obtained by multiplying the peak value of the first deviation by a predetermined value, and the peak determining means 17 determines that the peak value of the first deviation is higher than the second deviation. The present invention is characterized by comprising a correction calculation means 18 that outputs a correction signal for reducing the duty ratio of the motor actuator to the duty ratio calculation means when it is determined that the peak value is smaller than a value obtained by multiplying the peak value by a predetermined value. Throttle valve control device using a motor actuator.