JPH0346334B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a control device for an automobile that allows a driver to carry a recording medium on which certain information is recorded, and uses the recording medium to drive or manage an automobile equipped with a computer. Regarding.

[Prior Art] Conventionally, automobiles have been equipped with a uniform control device. However, although a control selection mechanism has been provided that allows selective control to be performed according to the driver's preference, this device can only satisfy the average demands of an unspecified number of drivers. Therefore, it was not possible to satisfy the needs of each individual driver. That is, it had the following problems.

[Problems to be Solved by the Invention] Conventional automobiles have had the following problems regarding running, management, use of accessories, and operation.

(1) Driving Because specifications such as driving performance and fuel efficiency are fixed by the manufacturer at the time of vehicle manufacture, it is not easy to change these even if requirements for the vehicle specifications change after purchase. For example, at the time of purchase, you may have purchased a sports spec vehicle with emphasis on driving performance, but as you use it, you become dissatisfied with the fuel efficiency, and you may want to improve fuel efficiency even if the driving performance is reduced. Changes are quite time-consuming and expensive. Furthermore, when it is desired to use fuel mixed with alcohol or the like due to difficulty in obtaining gasoline, the same effort and expense as above is required for adjusting the fuel injection amount and ignition timing.

In addition, with automatic transmissions, depending on your preferences, you may want to drive at a shift point that emphasizes economy, or you may want to drive at a high speed shift point suitable for sports driving, or when driving on highways, mountain roads, and city streets. There are cases where it is desired to select a shift point that is suitable for the driving conditions such as the following, but it is difficult to do so.
The same thing can be considered for various other control systems related to driving.

(2) Management There are cases where people drive unknowingly even after the expiry date of their driver's license, vehicle inspection certificate, vehicle insurance card, etc. Additionally, since the vehicle can be operated using only the engine key, it is susceptible to theft. Furthermore, there are cases where the vehicle continues to be operated without realizing that the replacement period for parts, etc. has passed.

(3) Use of accessories Even if there is a radio program you want to listen to, you may not notice the broadcast time and miss it.

(4) Operation Since it is difficult to accurately know in advance the condition of the course and the route to the destination, it is difficult to know in advance the situation of the route and the route to the destination, so while driving, you may suddenly come across a sharp curve, an icy road surface, a landslide, etc., or a sudden junction, etc. There are times when it becomes difficult to decide on the course of action. Also, you may be unaware of the local speed limit and end up violating it.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the vehicle control device using the recording medium of the present invention uses running information that determines the running conditions of the vehicle, such as engine control information and automatic transmission control information. and a central processing unit for management control that processes management information such as information on expiry dates of driver's licenses, vehicle inspection certificates, vehicle insurance cards, etc., and information to prevent theft. an information transmission control center that processes vehicle accessory control information such as automatic radio music selection information and driving information such as road information, and performs the same processing as the driving information processing performed by the driving control central processing unit; a processing device; of the driving information, the management information, the automobile accessory control information, and the operation information, stratified and recorded into information that can be changed with constraints and information that can be changed without constraints; a recording medium, and a recording medium reading device disposed between the recording medium and the management control central processing unit, and inputting each of the information recorded on the recording medium to the management control central processing unit. and an interface between the recording medium reading device and the central processing unit for management control; and an interface for transmitting each of the information from the central processing unit for management control to the central processing unit for travel control and the central processing unit for information transmission control. and a data transfer bus for transferring.

[Operations and Effects] The vehicle control device using the recording medium of the present invention records necessary information on the recording medium and makes the driver carry it, and operates the computer installed in the vehicle based on the information on the card. A car can be made to the desired specifications, management information and operation information necessary for driving can be appropriately provided, and accessories such as a radio can be automatically operated according to a program. In addition, information such as engine control information that would be dangerous if changed by the user is recorded on the recording medium using perforations that cannot be easily changed, and information that needs to be changed at any time, such as road information, is recorded using magnetism that is easy to change, making it safer. An automatic control device using a recording medium is obtained.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a card on which information is recorded by magnetism and perforation. In this example, rows A and D contain engine control information and running information that require mechanical adjustment or modification. Changing the information without permission is dangerous, and the information that should be set by the dealer, repair shop, etc., as well as management information such as the expiry date of the driver's license, vehicle inspection certificate, vehicle insurance card, etc., or theft prevention, etc., are stored through the perforation. In rows C, out of driving information, information that can be changed by the user, control information for automobile accessories such as automatic radio station selection, and operation information such as road information are magnetically stored.

Writing to the card is possible using a card reader/writer installed in the car, and control information for car accessories can also be freely rewritten according to preference by installing a writing device at home, for example. be. Further, regarding road information, it is possible to input the information onto the card at a toll gate of a toll road or at a place where a data input device is specially provided on the road.

FIG. 2 is a block diagram showing the structure of a card-based vehicle control device. 1 is a card with information recorded by magnetism and perforation, 2 is a card reader/writer installed in the driver's seat of a car, and 3 is a card reader/writer.
Writer interface, 4 is a central processing unit for management control (hereinafter referred to as CPU), 4A is a random access memory (hereinafter referred to as RAM) of CPU 4, 5 and 6 are read-on memories (hereinafter referred to as ROM) of CPU 4, 7 is a display device , 8A is a clock with a built-in calendar. 8 is a driving control CPU managed by CPU 4, 9 and 10 are its RAM and
ROM, 11 is the input/output buffer of CPU8, 12 is
Input interface of CPU8, 13 is CPU8
is the output interface of Input signals to the input interface 12 include vehicle speed, engine speed, output shaft torque, crank angle, throttle opening, exhaust gas purification device temperature, oxygen sensor output, cooling water temperature, intake air amount, and the like. In addition, the output signals from the output interface include ignition timing, fuel injection amount, engine control signals such as automatic transmission, automatic transmission shift point or direct connection point, power steering force, suspension spring rate adjustment, etc. All of these controls are realized via actuators. 14 is a CPU for information transmission managed by CPU 4, 15 is its RAM, 1
6 and 17 are the ROM, 18 and 19 are the CPU 14
The input and output interfaces of Input signals to the input interface 18 include mileage, vehicle speed, etc., and the output interface 19 issues output signals for automatic radio tuning, warnings of curves, frozen roads, landslides, etc. 20 is CPU 4 and input/output buffer 1
an input/output buffer control line connecting 1 to 21;
is the failure determination line of CPU8, 22 is the CPU8 control bus, 23 is the interrupt request line from CPU8 to CPU4, and 24 is the line from CPU4 to CPU8 and CPU14.
25 is the interrupt request line from CPU14 to CPU4, 26 is CPU1
4 control buses, 27 a buffer between the CPU 8, CPU 14, and input/output buffer 11, and 28 a buffer control line. Reference numeral 29 indicates a key operation key, and 30 indicates a key input interface, which allows even a driver who does not have the card 1 to drive the car using the key.

As shown in Fig. 3, the card reader 2 has reading sections A' and D' for reading information on rows A and D of card 1 using photoelectric elements such as phototransistors and CdS, and reading sections A' and D' for reading information on rows A and D of card 1 using phototransistors, CdS, etc., and reading sections A' and D' for reading information on rows B and C of card 1 using magnetism. It has reading sections B' and C' for reading information, and sends the information of the card 1 to the card reader/writer interface 3, and from there to the CPU 4.

FIG. 4 shows an information flowchart of the card system. The information on the card 1 is read in the card 101, information management 102, and system management 103 in the CPU 4, and displayed in a predetermined manner on the display device 7 and data transferred 104 to the CPU 8 or
It is sent to the CPU 14.

The information processing in the CPU 4 is as shown in the card system processing flowchart in Figure 5.
01, the card data is read 202 from the card reader/writer interface 3 and transmitted to the information management system subroutine 300.

In the information management system subroutine 300, the sixth
Processing as shown in the flowchart illustrated in the figure is performed. After initial setting 301, the usage code data in the card 1 is read 302, and it is determined 303 whether or not the read usage data is registered in the ROM 5. If NO, a message indicating that the card is unregistered is displayed on the display unit 7 and a key input message is displayed 304, and it is determined 305 whether or not a usage code has been input using the key 29. If no code has been input, a key input message is displayed. 304 is displayed, and if there is an input, the usage code entered by the key is displayed.
A determination 306 is made as to whether or not it has been registered in the ROM 5. If NO, a message 307 indicating that the vehicle cannot run is displayed on the display section 7, and then a check 308 is made to see if there is a key input correction 308. If yes, the process returns to the key input message display 304, and if not, the process stops.
When the usage code of card 1 matches that of ROM 5 and when the key input code matches that of ROM 5, the expiration date of the driver's license, vehicle inspection certificate, and vehicle insurance card recorded on card 1 is read 310 Then, a determination 311 is made as to whether or not the expiration date has expired. If the expiration date has expired, a display 312 indicating that the vehicle cannot run is displayed on the display section 7, and then the vehicle stops. If it is before the expiration date, it is further determined 313 whether it is one month before the expiration date, and if it is before the expiration date, it immediately returns to the main program, and if it is within one month, it returns after displaying a warning 314. .

Next, the CPU 8 and the CPU 14 are activated via the CPU 8 control bus 22 and the CPU 14 control bus 26, and the CPU 8 and the CPU 14 are activated via the card data transfer bus 24.
The card is transferred 204 to the CPU 8 and the CPU 14, and a display 205 indicating that the vehicle is ready to run is displayed on the display unit 7. Next, a determination 206 is made as to whether or not the data has ended due to an external interrupt, and if the data has ended, a determination 207 is made as to whether there is any changed data. If there is no changed data, the process returns to step 206 to determine whether the data has ended due to an external interrupt, and if there is no changed data, it is determined whether the information is from the CPU 8 (208) or whether it is from the CPU 14 (209). When it is information about the CPU 8, an interrupt signal is sent to the CPU 8 (210), the input information is transferred (211), and it is determined whether or not to write the changed data to the card (212), and if there is no need to write it, it is left as is. , if there is, the data is written to the card 213 and then the process returns to 206 for determining whether the data is finished due to an external interrupt. When it is information on the CPU 14, an interrupt signal is sent 214 to the CPU 14, the input information is transferred 215, and it is determined 216 whether or not to write the changed data to the card, and if writing is not necessary, immediately If writing is necessary, the changed data is written to the card 217, and then the process returns to 206 for determining whether the data is finished by an external interrupt. Also information on CPU8 and CPU
If both of the information items 14 are different, a display 218 indicating that the data are different is performed, and then the process returns to 206 for determining the end of data by an external interrupt. When there is no data due to an external interrupt, it is determined whether or not there is a failure in the CPU 8. If there is no failure, the CPU 8 immediately outputs a signal 220 to the buffer line, and if there is a failure, it outputs a signal 220 to the buffer line, an interrupt signal 221 to the COU 14, and sends an interrupt signal 221 to the CPU 4. performs a warning interrupt 400, and then determines the end of data by an external interrupt 206
Return to

A warning interrupt 400 to the CPU 4 is processed by the interrupt processing subroutine of the CPU 4 shown in FIG. A warning display 401 is displayed along with the input,
Determination 402 of whether or not the interrupt is from the CPU 8;
A determination 403 is made as to whether the interrupt is from the CPU 4 or not.
In the case of an interrupt from the CPU 8, the data to be changed is displayed 404, and a determination 405 is made as to whether the changed data is due to a key input. Card data transfer bus 2 when changed data is by key input
4, transfers data 406 to CPU 4 via
After the change is written 407 to the card 1 by the card reader interface 2, the process returns. In case of interrupt from CPU4, display section 7
Display 408 the warning content to that effect, and
If the interrupt is neither from the CPU 4 nor from the CPU 8, a warning 409 is displayed and the process returns.

The operation of the traveling control CPU 8 is as shown in the flowchart shown in Fig. 7.
3, after initialization 501, card data is read 502 via the card data transfer bus 24, and the read data is stored in the RAM.
9 is stored 503. Next, the fuel supplied to the engine based on the read information is F ₁ , F ₂ , F ₃ ,
Determine which of the F ₄ is, and accordingly
Any flag set from F ₁ to F ₄ 504 to 50
7 is performed, and if neither is true, control is returned to the CPU 4 and a warning 508 is issued. First, it is determined whether or not engine control is necessary based on each flag set 50
9, data is read 510 if necessary, engine control data is selected 511 from the read data and the contents of the data indicated by the data set flag, and an engine control signal is output 512. It is determined 513 whether engine control is unnecessary or whether automatic transmission control is necessary after issuing a signal output for engine control. After passing through , the process returns to step 509 where it is determined whether or not engine control is necessary.

The automatic transmission control subroutine 600 will be explained based on the flowchart shown in FIG. This subroutine makes a determination 601 as to whether it is the first time, reads card data 602 from the RAM 9, and makes a determination 603 as to whether the pattern is stored in the ROM 10 or not. The pattern is
If it is the same as the specification related to the speed change built in ROM10, select Specification 1 or Specification 2 of the built-in one.
The determinations 604 and 605 are performed, data flags are set 606 or 607 according to the specifications, and automatic transmission control data is read 608. If the pattern differs from both Specification 1 and Specification 2, the process goes through the subroutine 400 of a warning interrupt to the CPU 4, and then returns to determination 603 whether the pattern is built in the ROM 10 or not. In addition, if the card data pattern is determined by the user's preference and differs from the specifications built into the ROM 10, the shift point data is read from the RAM 9 (610) and a data check is performed in the data check subroutine 611. Then, a determination 612 is made as to whether the data is appropriate, and if appropriate, a flag is set 613 for the data. If the pattern determined by the user is inappropriate, the process returns to the data check subroutine 611 after passing through the subroutine of warning interrupt 400 to the CPU 4. When the automatic transmission control subroutine is not executed for the first time, a determination 614 is made as to whether or not the data input by interruption has been completed, and when it has been completed, a determination 615 is made as to whether or not the changed data is for automatic transmission control; If it is for automatic transmission control, change data RAM9
After writing 616 to the RAM 9, card data is read 602 from the RAM 9. If the changed data is not for automatic transmission control, a display 617 indicating that the changed data is different is displayed, and the automatic transmission control data is read 608. Even if the data input by an interrupt has not been completed, the data is displayed in the same way. Reading 608 is performed. Along with this, vehicle speed, engine speed, output shaft torque, crank angle, throttle opening, exhaust gas purification device temperature,
The O ₂ sensor etc. are read into the RAM 9 via the input interface 12, automatic transmission control parameters are set 618 based on the read data and the contents of the data indicated by the data set flag, and a signal for engine control is output 619. Output and return are performed via the output interface 13 so that the shift point changes. The operation of the information transmission CPU 14 starts with activation 203 of the CPU 14 in FIG. 5, as shown in the flowchart shown in FIG.
After initial setting 701, card data is read 702 via the card data transfer bus 24.
The data is stored in the RAM 15, and the presence or absence of an interrupt signal to the CPU 14 is determined in step 703. When there is an interrupt signal to the CPU 14, it is determined 704 whether the changed data is for car radio control, and the changed data is
Write 705 to RAM15, determine whether the data has ended or not 706, and then finish.
The process returns to step 703 for determining the presence or absence of an interrupt signal to the CPU 14. If the changed data is not for car radio control, display 707 indicating that the data is different.
Then, the process returns to 703, and if the data has not been completed, the process returns to 705, where the changed data is written to the RAM 15. When there is no interrupt signal to CPU14,
A determination 708 is made as to whether or not road information control is being performed, and if road information control is being performed, a road information control subroutine 800 is executed, and after subroutine 800 is completed and if it is not road information control, determination 709 is being made as to whether or not radio control is being performed.
In the case of radio control, a car radio control subroutine 900 is executed. When neither road information control nor radio control is performed and subroutine 90
After completing 0, the process returns to step 703 for determining whether or not there is an interrupt signal to the CPU 14.

As shown in the flowchart of FIG. 10, the road information control subroutine 800, after starting, determines 801 whether or not there is a road information data transfer interrupt, and if there is, reads the road information data 802 and stores it in the road information data area of the RAM 15. storage to 8
Do 03. Next, the end of the road information data is confirmed 804, the cumulative distance is cleared 805, and it is determined whether the road information data storage area is blank or not 806
do. If it is blank, return, and if there is road information, read the cumulative distance 807.
The cumulative distance is written to the CPU 4 and an interrupt 808 is performed, and it is determined 809 whether the cumulative distance is greater than the total distance of the section having road information. If it is large, interrupt 810 to clear road information to CPU4.
After that, return and if the cumulative distance is smaller than the road information section, select 811 the data of 5 points whose distance is larger than the cumulative distance, calculate the distance to each point 812, and calculate the distance to each point and the road. The status is displayed 813. Furthermore, reading the vehicle speed 8
14, a determination 815 is made as to whether the vehicle speed is greater than the speed limit at that point, and if it is smaller, the process returns immediately, and if it is greater, a speed violation warning is outputted 816 and then the process returns. The alarm is displayed on the display section 7. Interruption 810 for clearing road information is
As shown in FIG. 13, after the start, it is determined whether or not it is a clear command. If it is a clear command, the road information area of the card is cleared 821 and the process returns. If it is not a clear command, the cumulative distance is written to the card. The program performs reading 822 and returns.

As shown in FIG. 11, the car radio automatic tuning subroutine 900 reads the current date and time 901 from the built-in calendar clock 8A as shown in FIG. Perform determination 902, and if it is included, determine whether the radio is currently ON or OFF9
Do 03. When the radio is ON, a determination 904 is made as to whether or not the channel selection is correct, and if it is correct, the process returns. Switch when the radio is off
After performing ON905, select channel 906 and return. If the channel selection is incorrect, the program selects the channel 906 and then returns. If the current date and time is not included in the date and time data for car radio tuning, the radio will
A judgment 907 is made as to whether or not it is turned off.
When it is OFF, it returns, and when it is ON, it returns after turning the radio switch OFF908.

As mentioned above, the card-based car control device of the present invention records necessary information on the card and makes the driver carry it, and operates the computer installed in the car based on the information on the card, so the card can be used to control the car to desired specifications. Management information and operation information necessary for driving can be appropriately provided, and accessories such as a radio can be automatically operated according to a program.
In addition, information such as engine control information that would be dangerous if changed by the user is recorded on the card using perforations that cannot be easily changed, while information that needs to be changed at any time, such as road information, is recorded using magnetic material that is easy to change, making the card even safer. An automatic control device is obtained.
Furthermore, the central processing unit is composed of a central processing unit for driving control, a central processing unit for information transmission, and a central processing unit for management and control that manages these, so that when the central processing unit for driving control fails, the central processing unit for information transmission By making it possible to use the vehicle for driving control, safety is further improved.

Further, although not described in the embodiments, it is clear that the above invention can also be applied to control of the following items. For example, when driving on a road with few curves and good road conditions, a soft suspension is required, but when the road has many curves and poor road conditions, a hard suspension with good damping is required. In such a case, it is possible to provide a device for changing the suspension characteristics and set the desired characteristics using card information.

Furthermore, it is also possible to easily change the characteristics of the power steering so that the steering force is light at low speeds and increases in response to the speed using the card.

Toll cards are received at the entrance to toll roads such as expressways, but even in such cases, toll data can be written in addition to the road information described in the example using the card data input device installed at the entrance. It is also possible to display the fare on the display device according to the included mileage.

In addition, maintenance records at dealers, maintenance shops, etc.
By storing parts replacement records etc. on the card, the history of the car becomes clear, which is very useful for maintenance, and it can also warn the driver when it is time to change the oil, replace the battery, replace the tires, etc.
Furthermore, by putting dealers, maintenance shops, etc. online, automobile manufacturers can easily collect the history of each vehicle, which can be useful in automobile design.

[Brief explanation of drawings]

Figure 1 is a plan view of the card, Figure 2 is a block diagram showing the configuration of an automobile control device using the card, and Figure 3 is a plan view of the card.
The figure is an explanatory diagram of the card reader/writer, Figure 4 is a flowchart of card system information, Figure 5 is a flowchart of card system processing, Figure 6 is an information management system subroutine, and Figure 7 is a flowchart of travel control processing. , FIG. 8 is an automatic transmission control subroutine, FIG. 9 is an information transmission processing flowchart, FIG. 10 is a road information control subroutine, and FIG.
Figure 1 shows the car radio automatic tuning subroutine, No. 12.
The figure shows an interrupt processing subroutine to the management control central processing unit, and FIG. 13 shows a road information clear subroutine. In the diagram, 1...card, 2...card reader, 3
...Card reader/writer interface, 4
...Management control central processing unit, 4A, 9, 15...
...RAM, 5, 6, 10, 16, 17...ROM,
8...Central processing unit for driving control, 14...Central processing unit for information transmission.

Claims (1)

[Scope of Claims] 1. A central processing unit for driving control for processing driving information that determines the driving conditions of a vehicle, such as engine control information and automatic transmission control information, and a driver's license, vehicle inspection certificate, and vehicle insurance. A central processing unit for management and control that processes management information such as expiry date information for certificates, etc. and information for preventing theft, and control information for automobile accessories such as automatic radio music selection information, and operation information such as road information. and an information transmission control central processing unit that processes the same as the driving information processing performed by the driving control central processing unit; , a recording medium in which information that can be changed with constraints and information that can be changed without constraints is recorded, and a recording medium that is disposed between this recording medium and the central processing unit for management control. , a recording medium reading device for inputting each of the information recorded on the recording medium to the management control central processing unit, and an interface between the recording medium reading device and the management control central processing unit; An automobile control device using a recording medium, comprising a data transfer bus that transfers each piece of information from a central processing unit for management control to the central processing unit for driving control and the central processing unit for information transmission control. 2. An automobile control device using a recording medium according to claim 1, wherein the recording medium is a card on which information is recorded by magnetism and/or perforation. 3. The information recorded on the card is such that information for selecting driving information and information necessary for vehicle management is recorded by perforation, and information for controlling accessories and information necessary for operation is recorded by magnetism. An automobile control device using a recording medium according to claim 2.