JPS6299243A - Power source input device for vehicle - Google Patents

Abstract

PURPOSE:To prevent a vehicle from being stolen while demand a user to input a proper password number by providing a control circuit which outputs a warning signal and returns to an initial condition when the input of an erroneous password number is continually repeated for plural times. CONSTITUTION:When a password number is inputted from a key board 2, a password number judging means 9 judges the suitability of the password number and, when it is a set password number, outputs a signal to a system operation/ non-operation setting means 6, to drive a main switch relay 7. Also, the input of the password number is judged and, if the inputted numbers disagree with the set number continually for more than a certain times, e.g., three times or more, a password number continual disagreement times judging means 13 drives a horn relay 15 via a warning output driving circuit 14. Accordingly, if an erroneous password number is inputted, a horn gives a warning sound, which is effective in preventing a vehicle from being stolen, while notifying a user of erroneous password number.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a power input device for a vehicle that drives an electrical system by inputting a password from a keyboard.

(Prior Art) As a light rain power input device jδ, for example, a main switch is used in a motorcycle, and the main switch is used to open and close the electrical system.

By the way, this main switch directly activates the contacts to connect the electrical system and make the vehicle ready to drive, but in recent years it has been equipped with a keyboard, and input from the keyboard can indirectly drive the main switch. There are things that open and close electrical systems.

(Problem to be solved by the invention) In some cases, inputting power from a keyboard is performed using a PIN number, but there are cases where an attempt is made to steal the vehicle by entering the PIN number, or where the user enters the PIN number. Sometimes I make mistakes.

In this case, it is believed that issuing an alarm is effective in preventing theft. In addition, in addition to clearly informing the user of an incorrect PIN number and prompting the user to enter the correct PIN number, the system also disables input using the mechanical key in vehicles where the main switch can also be entered by other means, such as a mechanical key. You can do what you want.

This invention has been made in view of the above circumstances, and is a vehicle that can prevent theft by alerting the user of incorrectly entered PIN numbers, and can prompt the user to enter the correct PIN number with a simple operation. The purpose is to provide a power input device for

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a power input device for 41 cars that drives the electrical system by inputting a password from the keyboard. The device is characterized by being equipped with a control circuit that outputs an alarm signal and returns to the initial state if the password is incorrectly entered multiple times in a row.

(Function) In the present invention, if a password is input incorrectly from the keyboard several times in a row, an alarm signal is output and the system returns to the initial state.

In this way, a warning is given if the PIN is entered incorrectly, which prevents the vehicle from being stolen, and also allows the user to enter the correct PIN or enter the electrical system, such as the ignition system, by other means other than the PIN. can be done.

Furthermore, since the initial state is restored with the output of the alarm (No. 3), no special key operation is required to cancel an erroneous key input, making the operation easy.

(Example) Hereinafter, an example in which the present invention is applied to a motorcycle will be described in detail based on the accompanying drawings.

FIG. 1 shows a basic configuration diagram of this invention. In the figure, 1 is a mechanical key, 2 is a keyboard, and 3 is a mechanical key.
is a speed sensor, which constitutes an input means of the control circuit 4. The mechanical keys 1 and the keyboard 2 are power input means for the electrical system including the ignition system of the vehicle.

The output signal of the mechanical key 1 is input to an on/off operation state determining means 5 forming a control circuit 4. The on/off operation state determining means 5 determines whether the output signal of the mechanical key 1 is input or not, and outputs the output signal to the system operation/inoperation setting means 6 when the output signal is input. This system operation/inoperation setting means 6 drives a main switch relay 7, and when the mechanical key 1 is operated, power is input to the electrical system.

The output signal from the keyboard 2 is input to the password verification mode switch input determination means 8, the password number determination means 9, and the password change determination means 10, respectively.

When the verification mode switch for verifying the password on the keyboard 2 is operated, the operation is determined by the password verification mode switch input determination means 8, and the password determination means 9 is activated for the time set by the timer 11, and the keyboard illumination is activated. Drives relay 12. The time set by this timer 11 is the time to maintain the verification mode for verifying the PIN number.
After this predetermined period of time has elapsed, the operation of the recitation number determining means 9 is stopped and returned to the initial state.

Therefore, when entering your PIN number at night, 2 keychains 2
Battery consumption for lighting can be minimized.

When a password is input from the keyboard 2, the password determination means 9 determines whether the password is appropriate, and when a setting password is input, it outputs it to the system operation/inoperation setting means 6, and the main Drive switch relay 7.

This PIN number determination means 9 determines whether the PIN number has been input from the keyboard 2, and if the PIN number does not match five consecutive times beyond a predetermined value, for example, three or more times, the PIN number consecutive discrepancy number determination means 13
drives the horn relay 15 via the alarm output drive circuit 14 to sound the horn and issue an alarm.

Therefore, even if you try to steal an Ili-ryo and enter your password, if you enter more than a predetermined number, the horn will sound, which is effective in preventing theft of your Ili-ryo.

In addition, if the user makes a mistake in entering the PIN number, the horn will similarly sound, clearly informing the user of the error in the PIN number, prompting the user to enter the correct PIN number, and providing other means such as , mechanical key 1
In a vehicle in which the main switch can also be input, input can be performed using the mechanical key 1. Further, the f-stage 13 for determining the number of consecutive PIN number matches outputs a signal at the same time to return the PIN number determining means 9 to its initial state.

Therefore, no special key operation is required to cancel an erroneous key input, and since the operation can be performed from the initial state, the operation is simple and easy to understand.

After the vehicle has stopped, the na memorized PIN number change determination means 10
The speed signal determining means 16 determines the output signal from the speed sensor 3, and when the system operation/inoperation setting means 6 is activated by the output signal from the mechanical key 1 or the keyboard 2, the code number writing means 17 is set. Output a signal. The password writing means 17 writes a new password into the password memory 18, and thereafter, based on this password, the password determining means 9 determines whether or not the input of the password is appropriate.

FIG. 2 shows a more specific embodiment of the control circuit of the present invention.

The control circuit 4 is composed of an input interface 20, an A-reverse converter 21, an 8-bit microcomputer 22, and output interfaces 23, 24. The power input means of this control circuit 4 is composed of the mechanical key 1 mentioned above and a keyboard 2 provided on the meter device 25, and the keyboard 2 has an on/off key 2 which is an illuminated key switch.
6, a mode key 27, an input key 28, a set key 29, and a reset key 30 are arranged.

A liquid crystal display section 31 is provided on the upper part of the meter device 25,
The liquid crystal display section 31 is composed of a traveling speed display section 32, a remaining fuel amount display section 33, and a display switchable trip meter/time display section 34.

Further, various indicator lamps 35 are arranged on the right side of the keyboard 2, and an electric cumulative distance meter 36 is arranged on the left side.

The voltage of the vehicle battery 37 is converted to approximately 5V through the power supply stabilization circuit of the regulator 38.
The power supply Vccl obtained in step 8 is a power supply that is constantly supplied.
The signal is supplied to the bit microcomputer 22 and the clock IC 39.

On the other hand, the power supply Vcc2 obtained through the regulator 40
Is it even necessary for the system to work? a source, input interface 20, A-D converter 21, output interfaces 23, 24, fail-safe circuit 41, meter device 2
5 LCD drive IC 42, electric f buzzer 43, etc. power supply Vccl
Power is supplied to parts that require other power.

+if The regulator 40 is connected to the battery 37 via a switch 44, and the contact 4 of this switch 44
4a is closed by energizing relay 44b with the output of 8-bit microcomputer 22. The signal from this 8-bit microcomputer 22 is transmitted to the mechanical key 1.
When the contact point is closed or the input key 28 from the keyboard 2 is operated to input the password, the password is output.

The traveling speed signal of the speed sensor 3, the level signal of the fuel sensor 45, the operation signal of the flasher operation section 46, the angle signal of the steering wheel angle sensor 47, and the detection signal of the theft prevention 11-sensor 48 are inputted via the input interface 20 in 8-bit format. It is incorporated into the microcomputer 22. Then, the 8-bit microcomputer 22 performs arithmetic processing, and the output signal is output to the outside via the output ink face 23 and sent to on-vehicle equipment, such as the ignition circuit relay 49, main switch relay 7, and helmet holder 5.
0, the flasher relay 51, the horn relay 15, the lighting relay 52 of the meter device 25, the electric buzzer 43, the electric distance meter 36, and other electrical systems are driven.

8-bit microcomputer 22 is even more serious clock I
C39, failsafe circuit 41 and liquid crystal drive IC42
etc.

The running speed signal of the speed sensor 3 is obtained by transmitting the rotation of the surface width as rotation through a meter cable to rotate a magnet, and turning on and off a leet switch provided near the magnet. This on/off pulse is waveform-shaped by the input interface 20, and the 8-bit microcomputer 22 measures the pulse period at the leading edge or trailing edge of the pulse and converts it to heavy speed, and the calculation result is sent to the liquid crystal drive TC 42. It is converted into a segment output necessary for driving the liquid crystal of the meter device 25, and is displayed in an annular zone on the traveling speed display section 32.

The level signal of the fuel sensor 45 is obtained by a float-type variable resistance sensor provided in the fuel tank, and level changes are obtained as resistance value changes by upward movement of the float. This fuel level signal is converted into a voltage through the input interface 20 and sent to the A-D converter 21.
This makes it ready for reading by the 8-bit microcomputer 22. The 8-bit microcomputer 22 converts the calculation result into a segment output necessary for driving the liquid crystal of the meter device 25 using the liquid crystal driving IC 42, and displays the result in an annular zone on the fuel remaining amount display section 33.

A reference frequency is given to the clock IC 39 by a crystal oscillator, and time is integrated from this frequency to obtain the time. This time data is stored in the 8-bit microcomputer 22.
The time is displayed on the LCD via the

This display is a switchable display with a trip meter, and the trip meter shares the reed switch signal used for the traveling speed display, and is controlled by an 8-bit microcomputer 2.
2, the data is processed as distance data, and the liquid crystal drive rc 42 is driven.

The electric distance meter 36, like the trip meter, drives the distance meter from the traveling speed No. 3.

The operation signal of the flasher operation unit 46 is output by operating the left U of the direction indicating switch, controls the flasher relay 51 via the 8-bit microcomputer 22, and causes the flasher 53 to blink. The control of the flasher relay 51 is canceled by the input of the steering wheel angle signal from the steering wheel angle sensor 47, and this cancellation is performed when the flasher 53 starts blinking when turning right or turning left.

An inclination sensor is used as the anti-theft sensor 48 and is installed so that it can be detected when the vehicle is tilted in the rolling direction with respect to the direction in which the vehicle is traveling.
sound.

This horn relay 15 also causes the horn 54 to dim when a proper password is not input for a predetermined period of time or more when inputting a password from the keyboard 2. In addition, electric r buzzer 4
3 sounds when an input is made from the keyboard 2 to notify the user of the key input.

Next, the operation of the present invention will be explained in detail with reference to FIGS. 3 to 5.

First, in the off mode shown in FIG.
enters the operation to verify the PIN number, and checks whether the PIN number has been matched in advance (step b)
. This is due to the battery 37 being disconnected, etc., causing the PIN number to change to the 8-bit password memory 18 of the microcomputer 22.
If the password is missing, enter the mechanical key ■ (Step C).

By inputting this mechanical key 1, the relay 44b of the switch 44 is actuated to turn on the contact 44a, thereby shifting to the on mode.

If the PIN code is present, i11 is rejected, the meter device illumination relay 52 is driven to turn on the illumination lamp that illuminates the keyboard 2, and the initial operation of setting the timer 11 is carried out to shift to the verification mode (step d).

This timer! ■The verification mode or operating time is set, and when the predetermined time elapses, the illumination light is automatically turned off and returned to off mode (step k), and the illumination light is turned on to make key operations easier at night. are doing.

Enter the specified password using the input key 28 within 30 seconds after the on/off key 26 is pressed.Steps e, f, g
), when the set key 29 is pressed, the password is compared with the password stored in the 8-bit microcomputer 22,
If they match, the mode immediately shifts to the on mode (step h). If they do not match, enter a new PIN in verification mode and repeat the verification. In case of this mismatch,
Since the initial state of the verification mode is restored, no key operation is required to cancel an erroneous key input.

If the input of the PIN number 54 fails, for example, three times or more (step i), the horn 54 is sounded for three seconds as a warning, the illumination light is turned off, and the system returns to the off mode (steps j, k).

Next, the on mode and wait mode will be explained in detail with reference to FIG. 4.

In the on mode 2, all the power sources of the light rain are turned on in the same way as in the on state by the normal mechanical key 1. That is, the password is input from the keyboard 2 to the input interface 20 to 8.
When the signal is input to the bit microcomputer 22, the relay 44b of the switch 44 is activated, the contact 44a is closed, and the power Vcc2 is supplied. As a result, the ignition circuit tree 49 and main switch relay 7 are driven via the 8-bit microcomputer 22 (step a).

b).

Even when the mechanical key l is operated, the operation signal is sent to the 8-bit microcomputer 22 via the input interface 20.
When the password is input, this signal is accepted and the switch 44 is operated as if the password had been input.

In this on mode, the password is changed. This flowchart is shown in FIG.

In FIG. 5, first, when the speed is OK m/h and the input of the set key 29 of the key fob 2 is continued for 3 seconds or more, the password can be changed (steps a, b). The reason why the set key 29 is required to be input for more than 3 seconds is to prevent the password from becoming changeable when the set key 29 is pressed by mistake.

The timer 11 is started by inputting the set key 29, and the digits of the password are input using the input key 28 (step c
, d). The digits of this password are determined by the number of keys entered, and can range from 1 to 10 digits. Enter the number and press set key 2
If you enter 9, the 1@certificate number will be changed and press the set key 29.
If no input is made within 15 seconds, the process returns to the start (steps e and f).

When the set key 29 is input, the PIN code is stored in the PIN memory 18 of the 8-bit microcomputer 22, and the memory discrimination code 16 of the FA50 containing the PIN code is stored.
It is written as a base number and is changed or preempted (step g).

For example, when the battery 37 is disconnected, the password and identification code are changed to the password memory 18.
Since the key 37 disappears from the screen, only operations using the mechanical key 1 can be accepted. Therefore, once the hacker 37 is removed, it is necessary to input the password anew.

When stopping the operation of the internal combustion engine in the on mode, press the on/off key 26 once as shown in FIG. Off step d, e.

f), the headlights go out.

At this time, the display on the meter device 25 disappears.

The illumination lights are on, and the keyboard 2 remains illuminated for a predetermined period of time.

When using the mechanical key 1, the operation from on to off works similarly.

In the wait mode, the speed is detected to be OK m/h (steps e, f, g), and at the same time, the timer 11 is turned on (step h), and after 30 seconds, the meter illumination light relay 52 is turned off, and the process moves to the off mode (steps m, 0)
. It automatically shifts to off mode, but requires keystrokes to enter other modes.

In this wait mode, the theft alarm is set with the input key of the keyboard 2, and when the light rain slopes beyond a predetermined level, the theft alarm device is activated (step i).

j). Further, when the No. 1 input key of the keyboard 2 is pressed, the helmet holder 50 is unlocked and locked again after a few seconds (step k).

l). Therefore, it is necessary to immediately remove the helmet from the holder after keying in. This helmet holder 50
Since the electric signal is normally off and the electromagnetic lock is released by applying electricity for only a few seconds, the lock is maintained even if the battery 37 is disconnected.

By turning on the mechanical key 1 in this wait mode, it is possible to shift to the on mode, and by pressing the on/off key 26 once, it is possible to shift to the collation mode.

(Effects of the Invention) As stated in the supplementary notes, the present invention provides a power input device for a vehicle that drives the electrical system including the ignition system by inputting a password from the keyboard, and the control circuit continuously inputs the password from the keyboard. If an incorrect password is entered multiple times, an alarm signal is output to restore the initial state, so if an incorrect password is entered, an alarm is issued, which is effective in preventing theft. Further, the user can input an accurate password or input electrical system information such as an ignition system by means other than the password.

Furthermore, since the initial state is returned to when the alarm signal is output, no special key operation is required to cancel an erroneous key input, making the operation easy.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing the basic configuration of this invention, FIG. 2 is a circuit diagram showing a more specific configuration of this invention, and FIGS. 3 to 5 are flow charts showing this redundant operation. 1... Mechanical key 2... Keyboard 3... Speed sensor 4... Control circuit 7... Main switch relay 15... Horn relay

Claims (1)

[Claims] In a vehicle's power input device that drives the electrical system by inputting a password from the keyboard, if the password is input incorrectly multiple times in a row, an alarm signal is output and the system returns to the initial state. A vehicle power input device equipped with a control circuit that allows