Throttle-valve opening degree control for automatic step-wise transmission system

Claim 1

A method for regulating an automatic step-wise transmission system of a vehicle including a vehicle engine, comprising the steps of: sensing real throttle-valve opening degree sensor data of the vehicle engine; determining whether the vehicle engine is under start-up conditions when said real throttle-valve opening degree sensor data is sensed; calculating a difference between said real throttle-valve opening degree sensor data sensed under the start-up conditions and reference throttle-valve opening degree data previously stored so as to obtain a correction value for said real throttle-valve opening degree sensor data; correcting said real throttle-valve opening degree data by adding said correction value to produce controlling throttle-valve opening degree data; and controlling the automatic step-wise transmission system by inputting said controlling throttle-valve opening degree data to as to produce a gear-changing control signal and to perform a gear-changing operation of the vehicle engine; wherein said determining step further includes the steps of: determining whether an engine speed of the vehicle engine is within a predetermined engine speed range; determining whether a plurality of said sensed real throttle-valve opening degree sensor data contained fluctuation; and determining whether the engine is in an idling operation state by comparing said real throttle valve opening degree sensor data and said reference throttle valve opening degree data.

Claim 2

A method for regulating an automatic step-wise transmission system of a vehicle including a vehicle engine, comprising the steps of: sensing real throttle-valve opening degree sensor data of the vehicle engine; determining whether the vehicle engine is under start-up conditions when said real throttle-valve opening degree sensor data is sensed; calculating a difference between said real throttle-valve opening degree sensor data sensed under the start-up conditions and reference throttle-valve opening degree data previously stored so as to obtain a correction value for said real throttle-valve opening degree sensor data; correcting said real throttle-valve opening degree data by adding said correction value to produce controlling throttle-valve opening degree data; and controlling the automatic step-wise transmission system by inputting said controlling throttle-valve opening degree data to as to produce a gear-changing control signal and to perform a gear-changing operation of the vehicle engine; wherein said determining step further includes the steps of: determining whether an engine speed of the vehicle engine is within a predetermined engine speed range; determining whether a plurality of said sensed real throttle-valve opening degree sensor data contained fluctuation; and determining whether the engine is in an idling operation state by comparing said real throttle valve opening degree sensor data and said reference throttle valve opening degree data.

Claim 4

A method for regulating an automatic step-wise transmission system of a vehicle including a vehicle engine, comprising the steps of: sensing real throttle-valve opening degree sensor data of the vehicle engine; determining whether the vehicle engine is under start-up conditions when said real throttle-valve opening degree sensor data is sensed; calculating a difference between said real throttle-valve opening degree sensor data sensed under the start-up conditions and reference throttle-valve opening degree data previously stored so as to obtain a correction value for said real throttle-valve opening degree sensor data; correcting said real throttle-valve opening degree data by adding said correction value to produce controlling throttle-valve opening degree data; and controlling the automatic step-wise transmission system by inputting said controlling throttle-valve opening degree data so as to produce a gear-changing control signal and to perform a gear-changing operation of the vehicle engine, wherein said automatic vehicle transmission system regulating step includes the step of: slip-controlling a torque converter by inputting said controlling throttle-valve opening degree data to a shift valve.

Claim 5

A method for regulating an automatic step-wise transmission system of a vehicle including a vehicle engine, comprising the steps of: sensing real throttle-valve opening degree sensor data of the vehicle engine; determining whether the vehicle engine is under start-up conditions when said real throttle-valve opening degree sensor data is sensed; calculating a difference between said real throttle-valve opening degree sensor data sensed under the start-up conditions and reference throttle-valve opening degree data previously stored so as to obtain a correction value for said real throttle-valve opening degree sensor data; correcting said real throttle-valve opening degree data by adding said correction value to produce controlling throttle-valve opening degree data; and controlling the automatic step-wise transmission system by inputting said controlling throttle-valve opening degree data so as to produce a gear-changing control signal and to perform a gear-changing operation of the vehicle engine, wherein said automatic vehicle transmission system regulating step includes the step of: slip-controlling a torque converter by inputting said controlling throttle-valve opening degree data to a shift valve.

Claim 6

A method for regulating an automatic step-wise transmission system of a vehicle including a vehicle engine, comprising the steps of: sensing real throttle-valve opening degree sensor data of the vehicle engine; determining whether the vehicle engine is under start-up conditions when said real throttle-valve opening degree sensor data is sensed; calculating a difference between said real throttle-valve opening degree sensor data sensed under the start-up conditions and reference throttle-valve opening degree data previously stored so as to obtain a correction value for said real throttle-valve opening degree sensor data; correcting said real throttle-valve opening degree data by adding said correction value to produce controlling throttle-valve opening degree data; and controlling the automatic step-wise transmission system by inputting said controlling throttle-valve opening degree data so as to produce a gear-changing control signal and to perform a gear-changing operation of the vehicle engine, wherein said automatic vehicle transmission system regulating step includes the step of: direct-controlling a torque converter by inputting said controlling throttle-valve opening degree data to a shift valve.

Claim 7

A method for regulating an automatic step-wise transmission system of a vehicle including a vehicle engine, comprising the steps of: sensing real throttle-valve opening degree sensor data of the vehicle engine; determining whether the vehicle engine is under start-up conditions when said real throttle-valve opening degree sensor data is sensed; calculating a difference between said real throttle-valve opening degree sensor data sensed under the start-up conditions and reference throttle-valve opening degree data previously stored so as to obtain a correction value for said real throttle-valve opening degree sensor data; correcting said real throttle-valve opening degree data by adding said correction value to produce controlling throttle-valve opening degree data; and controlling the automatic step-wise transmission system by inputting said controlling throttle-valve opening degree data so as to produce a gear-changing control signal and to perform a gear-changing operation of the vehicle engine, wherein said automatic vehicle transmission system regulating step includes the step of: direct-controlling a torque converter by inputting said controlling throttle-valve opening degree data to a shift valve.

Claim 8

A method for regulating an automatic step-wise transmission system of a vehicle including a vehicle engine, comprising the steps of: sensing first real throttle-valve opening degree sensor data of the vehicle engine; determining whether the vehicle engine is in a start-up status when said first real throttle-valve opening degree data is sensed; calculating a difference between said first real throttle-valve opening degree sensor data sensed under the start-up status and reference throttle-valve opening degree data previously stored so as to obtain a first correction value for said first real throttle-valve opening degree sensor data; correcting said first real throttle-valve opening degree sensor data by adding said first correction value to produce first controlling throttle-valve opening degree data; changing a shift valve after determining whether a gear-changing operation is required based upon said first controlling throttle-valve opening degree sensor data; sensing second real throttle-valve opening degree sensor data of the vehicle engine; determining whether the vehicle engine is in a start-up status when said second real throttle-valve opening degree sensor data is sensed; calculating a second difference between said second real throttle-valve opening degree sensor data sensed under said start-up status and said reference throttle-valve opening degree data previously stored so as to obtain a second correction value for said second real throttle-valve opening degree sensor data; correcting said second real throttle-valve opening degree sensor data by adding said second correction value to produce second controlling throttle-valve opening degree data; and, controlling the automatic step-wise transmission system by inputting to said shift valve said second controlling throttle-valve opening degree data so as to accomplish the gear-changing operation of the vehicle engine.

Claim 9

A method for regulating an automatic step-wise transmission system of a vehicle including a vehicle engine, comprising the steps of: sensing first real throttle-valve opening degree sensor data of the vehicle engine; determining whether the vehicle engine is in a start-up status when said first real throttle-valve opening degree data is sensed; calculating a difference between said first real throttle-valve opening degree sensor data sensed under the start-up status and reference throttle-valve opening degree data previously stored so as to obtain a first correction value for said first real throttle-valve opening degree sensor data; correcting said first real throttle-valve opening degree sensor data by adding said first correction value to produce first controlling throttle-valve opening degree data; changing a shift valve after determining whether a gear-changing operation is required based upon said first controlling throttle-valve opening degree sensor data; sensing second real throttle-valve opening degree sensor data of the vehicle engine; determining whether the vehicle engine is in a start-up status when said second real throttle-valve opening degree sensor data is sensed; calculating a second difference between said second real throttle-valve opening degree sensor data sensed under said start-up status and said reference throttle-valve opening degree data previously stored so as to obtain a second correction value for said second real throttle-valve opening degree sensor data; correcting said second real throttle-valve opening degree sensor data by adding said second correction value to produce second controlling throttle-valve opening degree data; and, controlling the automatic step-wise transmission system by inputting to said shift valve said second controlling throttle-valve opening degree data so as to accomplish the gear-changing operation of the vehicle engine.