JPS6299242A - Power source input device for vehicle - Google Patents

Abstract

PURPOSE:To prevent a vehicle from being stolen by providing a control circuit for changing a password number by means of an input from a key board when an electric system is operated while a vehicle is stopped. CONSTITUTION:A change of password number judging means 10 judges an output signal from a speed sensor 3 by means of a speed signal judging means 16 when a vehicle is stopped, and outputs a signal to a password number writing means 17 under a condition that a system operation/non-operation setting means 6 is operating according to the output signal of a mechanical key 1. This writing means 17 writes a new password number into a password number memory 18 and, after that, the suitability of an input is judged based on this password number by a password number judging means 9. The password number may be arbitrarily changed by a user. Accordingly, it is possible to make the input of power source through a key board 2 unable unless a password is newly written, preventing the vehicle from being stolen.

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 power input device for a vehicle, for example, a main switch is used in a motorcycle IT, and the main switch is used to open and close an electrical system.

By the way, this main switch directly operates 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 the main switch is indirectly driven by human power from the keyboard. Some are used to connect electrical systems.

(Problem to be solved by the invention) In this way, when manually inputting the password from the keyboard to manually operate the power supply, for example, in addition to the password that is erased when the battery is removed, the vehicle is If you provide a fixed master code that will not be erased even if you remove the battery to move the vehicle, if you know this master code, you will be able to remove the battery and enter the master code to move the vehicle, which will help prevent theft. Undesirable.

In this case, if you do not provide a fixed master code, and if the PIN is erased when the battery is removed and a new PIN is registered by the user, it is possible to prevent theft by manually inputting the PIN from the keyboard. It can be alleviated.

The present invention was made in view of the above circumstances, and an object of the present invention is to provide a manual power supply device for a vehicle that allows the user to arbitrarily change the password for inputting the power supply.

(Means for Solving the Problems) In order to solve the problems described above, the present invention provides a dual power input device for driving an electrical system by inputting a password from a keyboard. The present invention is characterized in that it includes a control circuit that changes the crime identification number by inputting from the keyboard when the vehicle is in a driving state and when the vehicle is stopped.

(Operation) In the present invention, the password is changed by manually inputting a new password from the keyboard while the electric system is powered on and the vehicle is stopped. This password can be changed by the user as needed, so if the password is erased when the battery is removed, etc., the power cannot be turned on from the keyboard unless a new password is written. Vehicle theft can be reduced.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail based on the accompanying drawings.

FIG. 1 shows a basic configuration diagram of this invention. In FIG. 1, reference numeral 1 is a mechanical key, 2 is a keyboard, and 3 is a mechanical key.
are speed sensors, which constitute the manual 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 ε of the mechanical key 1 is inputted 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 manually 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 inputted to a password verification mode switch input determination means 8, a recitation number determination means 9, and a recitation number change determination means 10, respectively.

When the verification mode switch for verifying the PIN number on the keyboard 2 is operated, the PIN verification mode switch human power determination means 8 determines whether the operation has been performed, and the PIN number ゛r1] determination means 9
is activated for the time set by the timer 11, and the key fob lighting relay 12 is turned on. The time set by the timer 11 is the time to hold the verification mode for verifying the password, and when 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 the 11Δ identification number at night, the consumption of the battery used to illuminate the key fod 2 can be minimized.

When a password is input from the keyboard 2, the password determination means 9 determines whether the I8 identification number is appropriate, and when a set password is input, it outputs it to the system operation/inoperation setting means 6, The main switch relay 7 is driven.

In this u8 identification number ↑ setting stage 9, the input of the PIN from the key fob 2 is judged, and the input of the PIN number from the key fob 2 is judged, and the input of the PIN number from the key fob 2 is continued, for example, 3.
If the number of consecutive discrepancies in the password exceeds the number of consecutive discrepancies, the means for determining the number of consecutive discrepancies in the PIN number is transmitted to the horn relay 1 via the alarm output drive circuit 14.
Drive the 5, sound the horn and make 2 alarms.

Therefore, even if an attempt is made to steal a vehicle, if the password is entered manually and exceeds a predetermined value, the horn will sound, which is effective in preventing the vehicle from being stolen.

In addition, if the user makes a mistake in inputting the PIN, the horn will similarly sound, which will clearly notify the user of the error in the PIN, prompting the user to enter the correct PIN, and provide 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 password consecutive mismatch count determination means 13 simultaneously outputs a signal to return the password flJ to the initial state.

Therefore, there is an advantage that no special key operation is required to release the extra key manually, and the operation is simple and easy to understand, even though it can be operated from the initial state.

When the vehicle is stopped, the password change determination means 10 uses the speed signal determination means 16 to detect the i1 speed sensor 3.
A signal is output to the password writing means 17 under condition F that the system operation/inoperation setting means 6 is activated by the output signal from the mechanical key 1.

The old password reading means 17 reads 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 has an input interface 20. It consists of an A-D converter 21, an 8-bit microcomputer 22, and output interfaces 23 and 24. The power supply means for this control circuit 4 is composed of the mechanical key 1 described above and a keyboard 2 provided on the meter device 25.
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.

Furthermore, an outer pole indicator lamp 35 is 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 5cm through the power supply stabilization circuit of the regulator 38.
The power supply Vcc1 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 the power supply necessary to operate the system, which includes the input interface 20, A-D converter 21, output interface 23, 24.7, work-safe circuit 41, and meter device 25.
It is supplied to parts that require power other than the power supply Vccl, such as the liquid crystal drive IC 42 and the electronic buzzer 43.

The regulator 40 is connected to the battery 37 via a switch 44, and a contact 44a of this switch 44
is the output of the 8-bit microcomputer 22 and the relay 4
It is closed by energizing 4b. This signal from the 8-bit microcomputer 22 is output when the contact 1a of the mechanical key 1 is closed or when the password 28 of the keyboard 2 is operated to enter the password manually.

The traveling speed signal of the speed sensor 3, the level 11 of the fuel sensor 45, the operation signal of the flasher operation unit 46, the angle signal of the steering wheel angle sensor 47, and the detection number 18 of the anti-theft l-sensor 48 are transmitted via the input interface 20. It is incorporated into an 8-bit microcomputer 22. Then, the 8-bit microcomputer 22 performs arithmetic processing,
The signals are outputted to the outside via the output interface 23 and sent to on-vehicle devices such as the ignition circuit relay 49, the main switch relay 7, the helmet holder 50, the flasher relay 51, the horn relay 15, and the illumination light relay of the meter device 25. 52, electronic buzzer 43, electrical distance meter 36, etc.'

The 8-bit microcomputer 22 also has a memorization clock [
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 reed switch provided near the magnet. This on/off pulse is waveform-shaped by the human interface 20, and the 8-bit microcomputer 22 measures the pulse period at the rising edge or falling edge of the pulse ff1h and converts it to heavy speed, and the calculation result is sent to the liquid crystal drive IC 42.
It is converted into a segment output necessary for driving the liquid crystal of the meter device 25, and 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 the level change is obtained as a resistance value change by the downward 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 driver 1C42, 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 2.
2, the time is displayed on the liquid crystal display.

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 distance data is processed and the liquid crystal drive IC 42 is driven.

The electric odometer 36 drives the odometer from the travel speed signal in the same way as the trip meter.

The operation signal of the flasher operation section 46 is output by operating the direction indicating switch to the left or right, and controls the flasher relay 51 via the 8-bit microcomputer 22 to cause the flasher 53 to blink. The control of the flasher relay 51 is canceled by manual input of the steering wheel angle signal from the steering wheel angle sensor 47, and this cancellation is performed when the flasher 52 stops flashing after turning right or turning left.

A tilt sensor is used as the anti-theft sensor 48, and is installed so as to detect when the vehicle is tilted in the rolling direction with respect to the traveling direction.
sound.

This horn relay 15 also sounds a horn 54 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, electronic buzzer 4
3 sounds when an input is made from the keyboard 2 to notify the user of the key force.

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 Pth PIN number is registered (step b)
. This is due to the battery 37 being disconnected, etc., and the password has been changed to 8-bit PIN number memory 1 of the computer 22.
8, it is determined whether the password is missing or not, and if there is no password, the contact 1a of the mechanical key 1 is input (step C).

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

This function allows when the battery is removed, if the 8-bit microcomputer 22 has the master code set at the time of manufacturing the rice, it will know this master coat.
In addition, if the battery 37 is intentionally removed and the password is erased, many vehicles can be easily moved by inputting the master code, which is not desirable in terms of crime prevention.

Therefore, once the battery is removed, unless a new password is input from the keyboard 2, driving with the password is not possible, so the password must be changed or the machine returns to the off mode and the mechanical key 1 waits for manual input.

If it is determined that the PIN number is present, the meter device illumination relay 12 is driven to turn on the illumination light of the keyboard 2 and perform the initial operation of setting the timer 11, and the process shifts to the verification mode (step d). ).

This timer 11 is set with a time for operating the verification mode, and when a predetermined period of time has elapsed, the illumination light is automatically turned off and returned to the off mode (step k), and the illumination light is turned off. This makes it easier to operate the keys at night.

Enter the specified password using the input key 28 within 30 seconds after pressing the on/off key 26.Steps e, f,
g) When the set key 29 is pressed, the password is checked against the pre-stored password in the 8-bit microcomputer 22, and if it matches, the 5-on mode is immediately entered (step h). If there is a mismatch, enter a new PIN in verification mode and repeat the verification. In the case of this mismatch, the verification mode returns to its initial state, so no key operation is required to cancel the erroneous keystroke.

If the input of the password does not match, for example, three times or more (step i), the horn 53 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, on-mode and wait mode will be explained in detail based on FIG. 4.

In the on mode 2, all power sources of the vehicle are turned on in the same way as when the mechanical key 1 is turned on. 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 relay 49 and main switch relay 7 are driven via the 8-bit microcomputer 22 (step a).

b).

Even when the mechanical key 1 is operated, the operation signal is sent to the 8-bit microcomputer 22 via the input interface 2o.
When input manually, this signal is accepted and the switch 44 can be operated as if the PIN number 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 set to 0 m/h and the set key 29 of the keyboard 2 is pressed manually for 3 seconds, the password can be changed (steps a and b). The reason why the manual input of the set key 29 is set for 3 seconds or more is to prevent the password from becoming changeable when the set key 29 is pressed by mistake.

The timer 11 is started manually using the set key 29, and the PIN number is entered manually 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
When 9 is input, the password is changed, and if the set key 29 is not input for 15 seconds or more, the process returns to the start (steps e and f).

When the set key 29 is input, the 8-bit microcomputer 22's PIN memory 8 stores the PIN as well as the stored identification code 16 of the FA50.
The change is completed by being written in base (step g).

For example, when the battery 37 is disconnected, the password and identification code are changed to the password memory 18.
Since it disappears from the screen, only the mechanical key 1 can be operated. Therefore, once the battery 37 is removed,
You will need to enter your PIN again.

For example, when an 8-bit microcomputer knows the master code, it is impossible to intentionally remove the battery and enter the master code to move 14 cars. Hard to steal.

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, but the illumination lamp remains on and the keyboard 2 remains illuminated for a predetermined period of time.

When using the mechanical key 1, the same function can be achieved by turning it on and off.

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 lighting relay 12 of the meter device 25 is turned off, and the mode is shifted to the off mode ( step m,
o). It will automatically go to off mode, but key operations are required to go to other modes.

In the wait mode, the theft alarm is set using the input key 28 of the keyboard 2, and when the vehicle tilts more than a predetermined level, the theft alarm device is activated (step i).

j). Further, when the No. 1 key of the input key 28 of the keyboard 2 is pressed, the helmet holder 50 is unlocked and locked again after a few seconds (step 1). Therefore,
After key-in, immediately attach the helmet to the helmet holder 5.
It is necessary to extract it from 0. 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 above, this invention allows changing the PIN number by inputting from the keyboard while the electric system is being driven by the control circuit and when the vehicle is stopped. This can be changed arbitrarily by the user as needed, so if the PIN is erased when the battery is removed, etc., the power cannot be input from the keyboard unless a new PIN is entered. It is possible,
Vehicle theft is reduced.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing the basic configuration of the invention, FIG. 2 is a circuit diagram showing a more specific configuration of the invention, and FIGS. 3 to 5 are flowcharts showing the operation of the invention. 1.-Mechanical key 2...Keyboard 3...Speed sensor 4...Control circuit 7...Main switch relay 12...Keyboard illumination relay 15...Horn relay

Claims (1)

[Claims] In a power input device for a vehicle that drives an electrical system by inputting a password from a keyboard, a control circuit changes the password by inputting a password from the keyboard while the electrical system is in a driving state and the vehicle is stopped. Power input device for vehicles equipped with