JPH0112026Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronically controlled automatic transmission.

This type of transmission is convenient because it allows the car to shift gears automatically and easily by simply pressing the control button, but instead of moving the control lever, multiple control buttons are selectively pressed. For example, it is possible to press the drive button by mistake while the reverse button is being pressed to reverse the vehicle.

However, if you press the operation buttons in this way, the transmission will be damaged, so when trying to press the drive button, second button, or row button from parking or reverse, do not press these operation buttons directly. , you must first press the neutral button and then press this button, and similarly when pressing the reverse button or parking button from drive, second, low, etc., press the neutral button once and then press these operation buttons. must be pressed.

The present invention was proposed in view of the above circumstances, and the object thereof is to provide a safe electronically controlled automatic transmission that will not damage the machine even in the case of erroneous operation of the operation button.

To this end, the present invention provides an electronically controlled automatic transmission equipped with a push-button operation dial on which each operation button is arranged to achieve the parking, reverse, neutral, and forward states. The present invention is characterized by comprising a control circuit that lights up a warning lamp and prohibits switching of the transmission state when a desired operation button is directly pressed without pressing the neutral button when switching the state.

An embodiment of the present invention will be explained with reference to the drawings.
FIG. 1 is a system diagram thereof, and FIG. 2 is a flowchart of FIG. 1.

In the diagram above, 1 is the engine, 2 is the automatic transmission, 3 is the park button P (hereinafter referred to as P), the reverse button R (hereinafter referred to as R), the neutral button N (hereinafter referred to as N), and the drive button D (hereinafter referred to as R). An operation panel consisting of a second button S (hereinafter referred to as S), a row button (hereinafter referred to as L), arranged side by side;
4 is a controller, 5 is a vehicle speed sensor, and 6 is a warning.

To explain the action of the controller 4 in such a device, as shown in FIG. 2, when the switch is turned on, a start signal is input and the first signal is P? If YES, it jumps to 4-3, and is the vehicle speed 0?
is asked, depending on the output of the vehicle speed sensor 5.
If YES, it will be set to P and P will be stored in memory.
This signal is repeated.

Is the vehicle speed 0? If it is NO depending on the output of the vehicle speed sensor 5, the signal that activates the warning 6 is sent to 4-1 and is not set to P, but only after the vehicle speed reaches 0. It is set to P.

Next is P? If NO, is it R? is asked, and if YES, was it P, N, or R last time?
is asked, and if it is NO, that is, D, S, or L other than P, N, and R, warning 6 is activated and returns to the original state, and warning 6 continues to sound.

What if it was P, N, R last time? If YES, was it P or R last time? is asked, and if YES, it is set to R and the signal to memorize R is repeated.

What if it was P and R last time? If the answer is NO, is the vehicle speed over 3km/h? If the answer is YES, it will be set to R and the signal to memorize R will be repeated, but if it is NO, that is, the vehicle speed is over 3km/h, the warning will continue to sound.

Also, is it R? If NO to the question, N
mosquito? If the answer is YES, it will be set to N.
The state where N is memorized continues, but if it is NO,
Is it D? is asked.

Here, if YES, last time D, S, L,
N? If you answer YES, it will jump to 4-4,
Was it N last time? If the answer is NO, it jumps to 4-5 and is set to D, and the state continues to memorize D, but if the answer is YES, was it R from the time before last? When asked, NO
If so, it jumps to 4-5, is set to D, continues to memorize D, and is it R two times before? If YES to the question, is the vehicle speed less than 3km/h? If it is YES, it will jump to 4-5 and set to D, and it will be in the state where D is pressed. If it is NO, Warning 6 will continue to sound and the vehicle speed will eventually decrease to less than 3km/h. If so, it becomes D.

Is it D? If you answered YES to the question D,
S, L, N? If the answer is YES, the game goes to 4-4 and the rest is as described above, but if the answer is NO, the game goes to 4-1 and a warning sounds.

Is it D? If NO to the question, is it S? If YES, the previous time was S, L, D, N.
mosquito? is asked, and if YES, it jumps to 4-6 and was it N last time? If the answer is NO, the process jumps to 4-7 and is set to S, causing S to be stored in memory.

Jumped to 4-6 and was N last time? If YES, is it R the time before last? If the answer is NO, 4-
Skip to step 7 and it will be as described above, but if YES, is the vehicle speed 3km/h or less? If you are asked YES, it will jump to 4-7 and proceed as described above, but NO
If so, warning 6 will sound.

Is it S? If the answer to the question is NO, it will jump to 4-2 and ask if it is L.If it is NO, it is neither, so it is a malfunction, so you will have to return it to the original position and press the switch again.

If YES, was it L, S, D, N last time? If the question is NO, the score jumps to 4-1 and a warning 6.
is activated, and if it is YES, was it N last time? When asked,
If YES, was it R the time before last? When asked, if NO, it is set to L and L is stored in memory, and if YES, is the vehicle speed less than 3km/h? If YES, it will be set to L, and if NO, warning 6 will be issued.
issue.

When the warning 6 is activated in the above operation, the automatic transmission 2 is simultaneously kept inactive.

Therefore, according to this structure, if the driver presses the operation button N once and then presses the next operation button, but due to a mistake, he directly presses the next operation button without pressing the operation button N. The warning is activated to warn of malfunction, and the transmission is kept inactive, thereby preventing damage to the machine.

In short, according to the present invention, parking, reversing,
In an electronically controlled automatic transmission equipped with a push-button operation board on which each operation button is arranged to achieve the neutral and forward states,
By being equipped with a control circuit that lights up a warning lamp and prohibits switching of the transmission state when the desired operation button is directly pressed without pressing the neutral button when changing the state of the transmission, The present invention is extremely useful industrially because it provides a safe electronically controlled automatic transmission that will not damage the machine even if operated incorrectly.

[Brief explanation of the drawing]

Figure 1 is a system diagram showing one embodiment of the present invention;
The figure is a flow chart of FIG. 1...Engine, 2...Automatic transmission, 3...Operation panel, 4...Controller, 5...Vehicle speed sensor, 6...Warning.

Claims (1)

[Scope of utility model registration request] In an electronically controlled automatic transmission equipped with a push-button control panel on which each operation button is arranged to achieve the parking, reverse, neutral, and forward states, the neutral button is used to change the state of the transmission. An electronically controlled automatic transmission characterized by comprising a control circuit that lights up a warning lamp and prohibits switching of the transmission state when a desired operation button is directly pressed without pressing the button.