KR100227390B1 - How to improve your electronically controlled 4 A / T S / Q in your car - Google Patents

Abstract

The present invention relates to a method for improving electrically controlled 4 A / TS / Q of an automobile. The present invention provides a method for improving an electrically controlled 4 A / TS / Q of an automobile, wherein 1 If the shift start signal is low, set the initial duty to D _a , and if ta time is greater than the given time t _a , shift to interval b; if it is small, count up ta time and continue the routine. If the above conditions are met, the routine proceeds to the interval b routine, calculates the synchronization completion judgment rpm del_Nf, sets the start flag, and counts up the tb time if the tb time is less than the given time tb or if del_Nf is greater than 100 rpm, and initializes the initial engagement. Hold duty, but if del_Nf is less than 100rpm, set finish flag 2 and transition to interval c.If start flag is set and tb time is greater than the given time tb, hold hold as bears to constant slope (lamp D _b ). Continue with the above routine until del_Nf is less than 100rpm for increasing duty, set finish flag 2 and transition to interval c, time tc If less than the given time tc is characterized in that it comprises the step of outputting the duty increasing at a constant slope (lamp_Dc) to the end duty of the interval b during tc, the SCSV to the first speed state and completing the shift.

Description

How to improve your electronically controlled 4 A / T S / Q in your car

1 shows a duty pattern of the present invention.

2 is a flowchart of the control method.

The present invention relates to a method for improving electronically controlled 4 A / TS / Q of a motor vehicle. Shift pattern image 3 1 command system is 3 2 1 Control is also disadvantageous in terms of response and S / Q. 2 1 There may be problems in S / Q and durability due to sudden tightening of OWC at the time of shift.

Kickdown 3 The purpose is to improve response and S / Q by applying one skip shift. To this end, in the present invention, a system capable of detecting the speed (or input RPM) of the vehicle, configured to detect the throttle opening degree, a system capable of receiving a kick-down servo switch on / off signal, or one speed In the system where the reaction force element in the system is equipped with a one-way clutch and is capable of controlling it, it improves the response during P / ON up / down skip shifting in the case of setting RPM, setting speed, setting throttle opening, S / Q and The purpose is to improve the fastening shock and durability of the one-way clutch.

1 is a diagram showing a duty pattern of the present invention.

The control method for this is as follows.

1) Before shifting: Duty 0%

2) section a

SCSV state is set to 3 speeds.

Gives the initial duty D _a to release the hydraulic pressure during t _{a in the} clutch (FRONT CLUTCH, kick down BAND & kick down SERVO).

Transition to interval b after t _a

3) section b

After t _a , give the initial engagement duty D _b .

t _a post by the SCSV state to the second speed state Sikkim release control without a hydraulic pressure contained in the end clutch and the kick-down servo front clutch.

D _b = D _bO -D _bL -Dr

-D _bO : Initial engagement duty base value according to Nr rpm (MAP value)

-D _bL : Initial engagement duty learning value

-Dr: Duty correction value according to oil temperature (MAP value)

Hold initial engagement duty for t _a sec.

After hold, the duty of decreasing the rate of inclination of the section b is reduced until the synchronization completion decision, where the slope varies according to N _E.

D _b = last_D-ramp_D _b -Dr

ramp_D _b = ramp D _bi -ramp_D _bL

where

ramp_D _b : Initializes the old b duty.

ramp_D _bL : The ramp learning value for the interval b duty.

Transition to interval c after synchronous completion determination (ΔN _b ).

ΔN _b : Sync completion judgment rpm

(N _t -gear_ratio × Nol = 1000rpm measured in IPG_A)

4) section c

Shows the duty that increases with a constant slope (ramp_D _c ) during t _c with the end duty value of the interval b as the initial value.

After t _c , the SCSV state is accelerated to 1, the duty is 100%, and the shift is completed.

2 is a flowchart of the control method. The description of FIG. 2 is as follows. 3 1 If the shift start signal is low, the initial duty is set to D _a , and if ta_time is greater than the given time t _a , the transition to section b is performed; if it is small, ta_time is counted time and the routine is continued. If the condition is satisfied, the routine proceeds to the interval b routine. Synchronous completion judgment Calculate rpm del_Nf and set start_flag and if tb_time is less than the given time tb or del_Nf is greater than 100 rpm, count up tb_time and hold the initial engagement duty, but if del_Nf is less than 100 rpm set finish_flag2 and set to interval c. To fulfill. If start_flag is set and tb_time is greater than the given time tb, the routine continues executing the duty increasing with a constant slope (rampe_D _b ) based on the hold duty until del_Nf is less than 100 rpm, then sets finish_flag2 and sets to interval c. To fulfill. If tc_time is less than the given time tc, the duty increases with a constant ramp (ramp-Dc) to the end duty of the interval b during tc, and then the SCSV is set to 1 speed and the shift is completed.

1) 3 at kickdown 2 3 not 1 sequential The response is improved by 1 skip shift.

2) S / Q can be improved by reducing shock caused by sequential shifting.

3) OWC fastening shock and durability can be improved at 1 speed through release control.

Claims (1)

In the method for improving the electric control 4 A / TS / Q of the vehicle, 3 1 If the shift-start signal is low, set the initial duty to D _a , and if ta time is greater than the given time t _a , shift to interval b; if it is small, count up ta time and continue the routine. If the above condition is satisfied, the routine proceeds to the interval b routine, calculates the synchronous completion determination rpm del_Nf, sets the start flag, and if the tb time is less than the given time tb or if del_Nf is greater than 100 rpm, counts tb time and initializes the initial engagement duty. Hold is set, but if del_Nf is less than 100rpm, set finish flag 2 and transition to interval c.If start flag is set and tb time is greater than the given time tb, the hold duty is increased to a constant slope (lamp D _b ). Continue the above routine until del_Nf is less than 100rpm, set finish flag 2, go to interval c, time tc Is less than a given time tc, and outputs the duty increasing at a constant slope (lamp_Dc) to the end duty of the section b for tc, and then shifts the SCSV to the first speed state and completes the shifting. How to improve electrically controlled 4 A / TS / Q.