JP4895701B2 - Data processing apparatus and data processing method - Google Patents

Description

  The present invention relates to a data processing apparatus having a computer configuration for executing vehicle control arithmetic processing and a data processing method using the apparatus.

  Conventionally, for vehicles (automobiles), general vehicle control such as acceleration / deceleration control and steering control based on driver operations, and advanced vehicle control such as collision prevention support and driving support based on camera and radar information are performed. Various data processing devices having a microcomputer configuration for executing the arithmetic processing of these controls are mounted as in-vehicle processing devices.

  These in-vehicle data processing devices are connected to a communication bus of an in-vehicle LAN called CAN, and execute arithmetic processing for each control based on various data of the vehicle running state from the communication bus. Result data and the like are sent to the control mechanism and alarm device in the vehicle via the communication bus, and these are operated.

  By the way, when this type of data processing device is developed and mounted on a vehicle, the data processing device to be developed / evaluated is mounted on the vehicle, and the vehicle running state input to the data processing device while the vehicle is running After collecting the data, the apparatus is evaluated from the simulation results based on the collected data.

  When developing and evaluating an electronic control unit of a vehicle power output device corresponding to the data processing device, it has been proposed to use a dedicated evaluation electronic control system as follows (for example, a patent) Reference 1).

  That is, at the time of data collection, the electronic control unit (evaluation target unit) of the vehicle power output device is connected to the evaluation electronic control system, and each data that is input to the evaluation target unit and processed while the vehicle is running is evaluated. The data is accumulated and held in the storage means (hard disk) of the evaluation electronic control system by the interruption processing of the electronic control system.

  Furthermore, at the time of simulation of operation reproduction after data collection, the evaluation electronic control unit is removed from the vehicle and connected to the reproduction electronic control unit corresponding to the evaluation target unit of the evaluation system (simulation apparatus), Collected data in the storage means is sent from the evaluation electronic control unit to the reproduction electronic control unit, and based on the collected data, the operation of the vehicle power output device is reproduced by the evaluation system, and the reproduced operation of the evaluation system is The target unit is evaluated.

Therefore, even when developing the data processing apparatus, it is conceivable to perform development / evaluation data collection and simulation using an apparatus corresponding to the evaluation electronic control system and the reproduction electronic control unit.
JP 2000-234984 A (paragraphs [0028]-[0031], FIG. 1, FIG. 4, etc.)

  When this type of data processing device is developed and permanently installed in a vehicle, the development / evaluation target data processing device can be used for development / evaluation data collection and simulation in terms of development efficiency and cost reduction. It is desirable that it can be used as it is, and can be installed on a vehicle as it is after development.

  However, when the development / evaluation target data processing device is used for development / evaluation data collection, not only the various data of the vehicle running state is captured and processed by the CPU as the processing unit of the processing device, It is necessary to send out and accumulate in an external storage means such as a storage means of the electronic control system for evaluation.

  In this case, not only the arithmetic processing unit but also the external storage means needs to be an access destination for data transfer, and data exchange between the device internal circuit such as a CPU and the external storage means outside the device is required. It is also necessary to consider timing deviations.

  For this reason, when this type of data processing device is used for data collection for development and evaluation, it is necessary to use a program dedicated to data collection in consideration of the access destination and timing described above. Can only use such a data processing device dedicated to data collection or connect the electronic control system for evaluation.

  Also, for simulation after data collection, conventionally, it is necessary to use a dedicated data processing device such as the electronic control unit for reproduction.

  Therefore, in the development and evaluation of this type of data processing apparatus, conventionally, in addition to the data processing apparatus to be developed and evaluated, the data processing apparatus dedicated to data collection or the electronic control system for evaluation or the electronic for reproduction A data processing device dedicated to simulation, such as a control unit, is required, and development efficiency and cost reduction cannot be achieved.

  The present invention can be used not only as a data processing device for development / evaluation but also for development / evaluation data collection and simulation as it is, and can be installed in a vehicle as it is after development. In order to provide a highly efficient data processing device, and to dramatically improve the development of this type of data processing device, to reduce costs, etc. An object of the present invention is to provide a specific data processing method for collecting evaluation data and performing simulation, and thereafter mounting the data on a vehicle as it is and generating vehicle control data.

  In order to achieve the above-described object, a data processing device of the present invention is a data processing device having a computer configuration that performs vehicle control calculations set based on various types of input vehicle traveling state data, and is a communication device. A data receiving unit that receives data input from the bus to the bus connection terminal unit, an external storage unit for collecting data, and an external storage unit for providing data that holds data of the collection result are connected to each other in a freely connectable manner. It has an output terminal section and a multi-input / output data buffer function. In the initial setting state, the data received by the data receiving section is temporarily held and output to the input / output terminal section, and from the initial setting state by a simulation command By switching to the simulation state, a data transmission / reception processing unit that temporarily holds data of the collection result input to the input / output terminal unit; In each of the initial setting state and the simulation state, the vehicle control calculation is executed based on the data temporarily stored in the data transmission / reception processing unit, and the result of the vehicle control data is output to the bus connection terminal unit. And an arithmetic processing unit that performs the processing (claim 1).

  In addition, the data processing device of the present invention further includes an input terminal portion to which a detection device that outputs a part of data of the vehicle running state is detachably connected, and the data transmission / reception processing portion is in the initial setting state. In some cases, data input to the input terminal unit is also temporarily stored and output to the input / output terminal unit.

  Next, in the data processing method of the present invention, the in-vehicle processing device formed by the data processing device according to claim 1 is mounted in a vehicle, and the bus connection terminal portion of the in-vehicle processing device is connected to the communication bus in the vehicle. In the case of permanent installation, the data input / output processing unit of the in-vehicle processing device is set to the initial setting state by holding the input / output terminal unit of the in-vehicle processing device in a non-connected state, and the data of the in-vehicle processing device Data received by the receiving unit is temporarily stored in the data transfer processing unit of the in-vehicle processing device and processed by the arithmetic processing unit of the in-vehicle processing device, and at the time of data collection, the input / output terminal unit of the in-vehicle processing device To the external storage means for collecting data, and the data received by the data receiving unit of the in-vehicle processing device during traveling of the vehicle is collected through the data transfer processing unit of the in-vehicle processing device. The external storage means for providing data formed by the external storage means for data collection after data collection at the input / output terminal portion of the in-vehicle processing device during simulation of driving reproduction And switching the data transmission / reception processing unit of the in-vehicle processing device to the simulation state according to the simulation command, and collecting the collected result data read from the external storage means for data provision of the in-vehicle processing device The data processing unit is temporarily held and processed by the arithmetic processing unit of the in-vehicle processing device (Claim 3).

In the data processing method of the present invention, when data is collected, the on- board processing device formed by the data processing device according to claim 1 is mounted on the vehicle, and the bus connection terminal portion of the on- board processing device is connected to the communication in the vehicle. connected to the bus, the vehicle processing unit to connect an external storage unit for the data collected in the input-output terminal portion provided in the vehicle processes the data that the data receiving unit receives the vehicle processing unit while the vehicle is traveling Collected in the external storage means for data collection via the data transfer processing unit of the device,
2. The data formed by the external storage means for data collection after data collection at the input / output terminal portion of the non-vehicle processing device for simulation processing formed by the data processing device according to claim 1 during simulation of running reproduction The external storage means for providing is connected, the data exchange processing unit of the non-vehicle processing apparatus is switched to the simulation state by the simulation command, and the data of the collection result read from the external storage means for data provision Is temporarily stored in the data transmission / reception processing unit of the non-vehicle processing device and processed by the arithmetic processing unit of the non-car processing device (Claim 4).

Furthermore, in the data processing method of the present invention, the in- vehicle processing device further includes an input terminal unit, and at the time of data collection, a part of the vehicle running state data is output to the input terminal unit of the in- vehicle processing device. An external storage for collecting the data received by the data receiving unit of the in-vehicle processing device and the data of the detecting device through the data transfer processing unit of the in-vehicle processing device while connecting a detection device and traveling the vehicle It collects in a means (Claim 5).

  According to the first aspect of the present invention, the data transmission / reception processing unit having a multi-input / output data buffer function temporarily holds the received data of the vehicle running state of the data reception unit in the input / output terminal unit in the initial setting state. When using for development / evaluation data collection for output, connect the external storage means for data collection to the input / output terminal in the on-board state, so that the computation and control programs of the arithmetic processing unit are dedicated to data collection. Even if it is not changed, the data received by the data receiving unit can be used for data collection by accessing the input / output terminal unit by the data transfer processing unit and adjusting (absorbing) the timing shift by the data transfer processing unit. It can be collected and held as data of the collection result in the external storage means.

  Therefore, the data processing apparatus to be developed / evaluated can be used as it is for collecting data for the development / evaluation.

  Further, in the development / evaluation simulation after data collection, an external storage means for providing data holding the collected data is connected to the input / output terminal unit, and the data processing apparatus is set in the initial setting state by a simulation command. By switching from the simulation state to the simulation state, the data transmission / reception processing unit temporarily holds the collected result data read from the external storage means for providing data to the input / output terminal unit.

  Then, based on the data of the collection result obtained by adjusting (absorbing) the timing shift or the like by the temporary holding, the arithmetic processing unit executes the calculation of the vehicle control, and the vehicle control data of the calculation result (simulation result) is connected to the connection terminal unit. To the communication bus.

  Therefore, this data processing apparatus can be used as it is for the simulation of development / evaluation after data collection without rewriting the arithmetic and control programs of the arithmetic processing unit to those for simulation.

  After development based on the above data collection and simulation, this data processing device is always installed in the vehicle as it is and is used in the initial setting state, so that the received data of the data receiving unit is calculated through the data transfer processing unit. The data of the vehicle control as the calculation result of the calculation processing unit can be output from the connection terminal unit to the communication bus.

  Therefore, after development, the data processing apparatus can be permanently installed in the vehicle as it is, and desired vehicle control can be realized.

  Therefore, the development / evaluation target data processing apparatus can be used as it is for development / evaluation data collection and simulation, and after development, it can be installed in a vehicle as it is. Therefore, a highly versatile data processing apparatus can be provided, and the development and evaluation of this type of data processing apparatus can be dramatically improved and the cost can be reduced.

  Next, according to the invention of claim 2, by further including an input terminal portion, not only data input from the communication bus but also large-capacity vehicle running state data such as image data that is difficult to transmit through the communication bus. Also, vehicle running state detection data such as sensors added to the vehicle for function addition is sent directly from the input terminal unit to the data transfer processing unit without going through the communication bus, and via the data input / output terminal unit The data can be collected and held in the external storage means for data collection as the collected data.

  Next, according to the invention of claim 3, the in-vehicle processing device formed by the data processing device of claim 1 can perform development / evaluation data collection and simulation in the in-vehicle state, and further, the in-vehicle processing device after development. It is possible to provide a specific data processing method that can be installed and used in a vehicle as it is.

  According to a fourth aspect of the invention, the external storage means is connected to the input / output terminal portion of the in-vehicle processing device formed by the data processing device according to the first aspect, and development / evaluation data is collected in the in-vehicle state. Thereafter, the non-vehicle processing device formed by the data processing device according to claim 1 can perform development / evaluation simulation outside the vehicle based on the collected data, and after development, the vehicle processing device after development Can be used by being mounted on a vehicle as it is, and another specific data processing method having the same effect as that of claim 3 can be provided.

  Furthermore, according to the invention of claim 5, since the in-vehicle processing device further includes an input terminal unit as in the invention of claim 2, the detection device is connected to the input terminal unit when collecting development / evaluation data. Thus, it is possible to provide a specific data processing method having the same effect as that of the second aspect.

  Next, in order to describe the present invention in more detail, the embodiment will be described in detail with reference to FIGS.

(First embodiment)
First, a first embodiment in which development / evaluation data collection and simulation are performed in a vehicle-mounted state will be described with reference to FIGS.

  FIG. 1 is a schematic block diagram of an example of a data processing device 1 according to the present invention, FIG. 2 is an explanatory diagram of a vehicle-mounted processing device 1a formed by the data processing device 1, and FIG. 3 is data of the on-vehicle processing device 1a. FIG. 4 is an explanatory diagram of an example of the external connection state and data flow during simulation of the in-vehicle processing device 1a, and FIG. 5 is a diagram during simulation of the in-vehicle processing device 1a. 6 is an explanatory diagram of another example of the external connection state and the data flow, FIG. 6 is an explanatory diagram of the external connection state and the data flow when the in-vehicle processing device 1a is permanently installed, and FIG. 7 is an explanatory diagram of the operation of the in-vehicle processing device 1a. It is a flowchart.

  The data processing device 1 of the present invention shown in FIG. 1 is a computer-structured device formed using a microcomputer, and is a vehicle control device that is set based on various data of the input vehicle running state. In order to execute the calculation, a data receiving unit 3 for receiving vehicle running state data input to the bus connection terminal unit 2 from a communication bus described later, an external storage means for collecting data described later, and holding data of the collection result An input / output terminal unit 4 to which an external storage means for providing data, which will be described later, is detachably connected, a data transfer processing unit 5 having a multi-input / output data buffer function, and arithmetic processing formed by the CPU of the microcomputer And an input terminal portion 7 to which a detection device to be described later that outputs a part of detection data of the vehicle running state is connected.

  Note that the external storage means for collecting data and the external storage means for providing data holding the collected data are rewritable non-volatile storage means such as flash memory and HDD.

  Further, the input / output terminal unit 4 may be configured to include one or a plurality of terminals shared for input and output, but in the case of this embodiment, the input / output terminal unit 4 includes an output terminal 4a and an input terminal 4b. The external storage means for data collection is connected to the output terminal 4a so as to be freely connected and disconnected, and the external storage means for data provision holding the data of the collection result is connected to the input terminal 4b so as to be freely connected and disconnected.

  Further, the data transmission / reception processing unit 5 is a data buffer including, for example, a buffer circuit with a multi-input / output interface having a plurality of input / output ports. The data transmission / reception processing unit 5 temporarily captures data of one or more set input ports. The program is set so that the stored data is read out to one or a plurality of set output ports.

  In the case of this embodiment, based on the program setting, the data transfer processing unit 5 receives data and arithmetic processing from the data receiving unit 3, the input / output terminal unit 4, and the input terminal unit 7 in the initial setting state. Data of the calculation process of the unit 6 is fetched and temporarily stored, and transferred to the calculation processing unit 6 in accordance with the data request access of the calculation processing unit 6. When the simulation command is input and the initial setting state is switched to the simulation state, the data transfer processing unit 5 preferentially takes in the collected result data input to the input terminal 4b of the input / output terminal unit 4 and temporarily Are transferred to the arithmetic processing unit 6 in accordance with the data request access of the arithmetic processing unit 6. Furthermore, regardless of the initial setting state or the simulation state, the data transfer processing unit 5 unconditionally reads each temporarily held data to the output terminal 4a of the input / output terminal unit 4 by a first-in first-out (FIFO) method, for example.

  Next, the arithmetic processing unit 6 sets settings such as collision prevention support and driving support based on each data transferred and input from the data transfer processing unit 5 in each of the initial setting state and simulation state of the data transfer processing unit 5. The calculated vehicle control is executed, and the vehicle control data of the calculation result is output to the bus connection terminal unit 2.

  In addition, the detection device connected to the input terminal unit 7 is a device that outputs a part of data of the vehicle running state. Specifically, for example, an in-vehicle CCD camera or the like necessary for collision prevention support, driving support, etc. An imaging device. That is, the image data of the imaging device is large and serial communication via the communication bus is difficult, and therefore, the data is directly input from the input terminal unit 7 to the data transfer processing unit 5 via the differential transmission LVDS without using the communication bus. . For this reason, an input terminal portion 7 is provided, and an output terminal portion of some in-vehicle detection devices such as the imaging device is directly connected to the input terminal portion 7. Note that some in-vehicle detection devices connected to the input terminal unit 7 are not limited to devices with a large amount of data such as the above-described imaging measures. The number of detection devices in the section is not limited to one.

  When the data processing apparatus 1 having the above configuration is a development / evaluation target apparatus, the in-vehicle processing apparatus 1a shown in FIGS. 2 and 3 to 6 is formed by mounting the data processing apparatus 1 on a vehicle. The in-vehicle processing apparatus 1a collects development / evaluation data (FIGS. 2 and 3) and simulates (FIGS. 4 and 5) in an in-vehicle state, and is completed after development (after development). The processing apparatus 1a is always used as it is on the vehicle (FIG. 6).

  By the way, the in-vehicle processing device 1a monitors, for example, a vehicle around the own vehicle from data of a captured image of the imaging device as a detection device connected to the input terminal unit 7, and based on the result of the monitoring, the necessary information is obtained. It is an in-vehicle device that generates vehicle control data for sometimes issuing a warning to a driver or automatically generating a braking force.

  When executing the arithmetic processing necessary for the monitor, the in-vehicle processing device 1a detects various data of the vehicle running state detected by other data processing devices in the vehicle and sent to the communication bus, specifically Data from the communication bus, including vehicle speed data, inter-vehicle distance of target vehicles such as preceding vehicles based on radar detection, vehicle width data of target vehicles, etc., vehicle steering angle and yaw rate data And use it.

  The vehicle control data of the calculation result of the in-vehicle processing device 1a obtained in this way is transferred to another data processing device in the vehicle via the communication bus, and it is determined that there is a high possibility of a collision with the preceding vehicle. In such a case, a brake control for avoiding a collision and a warning for a collision are performed based on the vehicle control data.

  When developing this in-vehicle processing apparatus 1a, various data and calculations of the vehicle traveling state obtained during traveling are experimentally run under various running conditions by a vehicle equipped with the in-vehicle processing apparatus 1a under development. The vehicle control data in the middle of calculation by the processing unit 6 is collected as actual vehicle data, and then the collected actual vehicle data is reproduced by simulation using the in-vehicle processing device 1a in an on-vehicle state, and the optimal algorithm and control for vehicle control are performed. Study (evaluate) the constant and improve it.

  Therefore, the in-vehicle processing device 1a is mounted on the vehicle 8 as shown in the connection state at the time of development / evaluation data collection in FIG. 2, and the bus connection terminal portion 2 of the in-vehicle processing device 1a is, for example, a CAN communication bus 9a of the vehicle 8. Connected to. Note that the vehicle 8 is a so-called test vehicle at the time of development / evaluation data collection and simulation, and is a vehicle that is produced when it is permanently installed after development. The communication bus 9a is also connected with various data processing devices 10 for performing other vehicle control and detection processing in the vehicle.

  When collecting data for development / evaluation, as shown in FIG. 3, the external storage means 11 for data collection is connected to the output terminal 4a of the input / output terminal section 4 of the in-vehicle processing apparatus 1a, and the input terminal section 7 A detection device 12 such as an imaging device is connected.

  Further, during the development / evaluation simulation, as shown in FIG. 4, the external storage means 11 for data collection and the detection device 12 are not connected, and the data is collected at the input terminal 4b of the input / output terminal unit 4 of the in-vehicle processing device 1a. The external storage means 13a for providing data holding the result data is connected, and the simulation command α of the simulation device 14a is given to the data transfer processing unit 5 via the input terminal unit 7, for example, and at the same time, the data of the simulation device 14a A read command β is given to the external storage means 13 for providing data.

  The external storage means 13a for providing data is usually composed of the external storage means 11 to which various data has been written by the last data collection. However, in some cases, various data has been written by past data collection or the like. It may consist of other external storage means.

  On the other hand, when collecting the calculation results of the calculation processing unit 6 even during the simulation of development / evaluation, as shown in FIG. 5, an external terminal for data collection is connected to the output terminal 4a of the input / output terminal unit 4 of the in-vehicle processing device 1a. A storage means 11 is connected.

  Further, at the time of permanent installation after development, for example, as shown in FIG. 6, the input / output terminal unit 4 is in a non-connected state, and the input terminal unit 7 has a part of the inside of the vehicle such as the imaging device as necessary. The output terminal portion of the vehicle running state detection device 12 (one or a plurality) is connected.

  The CPU of the in-vehicle processing device 1a does not change the program of operation (processing) due to the development / evaluation data collection, simulation, and permanent installation after completion, but the rewritable nonvolatile memory such as the EEPROM of the data processing device 1 For example, the calculation / control program in steps S1 to S9 in FIG. 7 that is written and held in the memory (not shown) is repeatedly executed while the vehicle 8 is traveling.

  Next, development / evaluation data collection and simulation operation (processing) will be described with reference to FIGS.

  Note that the flowcharts of steps S1 to S9 in FIG. 7 are started (started) at a predetermined timing and repeatedly executed.

  3 to 6 indicate the direction in which data flows, and the dashed arrow indicates that data is generated in some cases.

  Further, in the following description, the detection device 12 is an in-vehicle image pickup device, and the driver is warned or automatically braked when necessary using image data around the vehicle photographed by the image pickup device. It is assumed that the vehicle control data necessary for this is formed.

[When collecting data]
When the vehicle 8 as a test vehicle starts running in the state shown in FIG. 3 in which the external storage means 11 and the detection device 12 are connected to the vehicle-mounted processing device 1a under development, the vehicle-mounted processing device 1a mounted on the vehicle 8 is, for example, When the engine is started, the program shown in FIG. 7 is executed, and the image data that is captured and output by the imaging device is taken into the data transfer processing unit 5 and temporarily held (image taking process in step S1).

  In addition, the data receiving unit 3 receives data on the vehicle running state of other data processing devices in the vehicle input from the communication bus 9a to the bus connection terminal unit 2, and the data transfer processing unit 5 receives the received data as received data. And temporarily holding them (received data input process in step S2).

  Further, at the time of data collection for development / evaluation, since the simulation command (interrupt command) α is not generated, step S3 is passed “No” and the process proceeds to step S4.

  Then, in order to perform vehicle control calculations, the calculation processing unit 6 accesses the data transfer processing unit 5, reads the data temporarily stored in the data transfer processing unit 5, and substitutes it into the control variable (step S4). .

  The arithmetic processing unit 6 that has acquired the necessary reception data and image data in this way needs to perform the set vehicle control arithmetic processing and automatically brake whether or not it is necessary to warn the driver. The data of the predetermined vehicle control is generated by determining whether or not there is, the processing result data is sent to the communication bus 9a via the bus connection terminal portion 2, and the data in the middle of processing (calculation process) is also transmitted. The data is sent to the data transfer processing unit 5 (step S5).

  The data transmission / reception processing unit 5 sends the temporarily received reception data and the data of the calculation process to the output terminal 4a of the input / output terminal unit 4, and sequentially transmits these data to the external storage means 11 by serial communication. Store and collect (serial communication in step S6).

  Further, the data transfer processing unit 5 sends the temporarily held image data to the output terminal 4a of the input / output terminal unit 4 by a communication method according to the data size, and sequentially stores it in the external storage unit 11. Collect (image transmission in step S7).

  Then, by repeatedly performing steps S1 to S7 in order, various data (received data, image data) of the vehicle traveling state obtained by traveling under various traveling conditions and data of the calculation process of the calculation processing unit 6 are externally transmitted. The data is sequentially accumulated in the storage unit 11 and collected.

[During simulation]
At the time of development / evaluation simulation in which the control state is simulated and reproduced / evaluated, the external storage means 11 in which data is accumulated by the above data collection is used as the external storage means 13a for providing data, and is shown in FIG. 4 or FIG. As described above, the external storage means 13a for providing data is connected to the input terminal 4b of the input / output terminal section 4, the engine of the vehicle 8 is started, and the program of FIG. 7 is executed.

  In addition, a simulation command α is given from the simulation device 14a to the data transfer processing unit 5, and a data read command β is given from the simulation device 14a to the external storage means 13a to start development / evaluation simulation. The simulation command α and the data read command β are generated by connecting the simulation device 14a to the input terminal unit 7 and the external storage unit 13a, for example.

  Then, when the process goes to Step S3 through Steps S1 and S2 of FIG. 7, since the interruption signal of the simulation command α is given to the data transfer processing unit 5 at this time, the determination of Step S3 is passed with “Yes”. Then, the process proceeds to simulation image data input in step S8, and the image data read from the external storage means 13a to the input terminal 4b of the input / output terminal unit 4 is taken into the data transfer processing unit 5 and temporarily held.

  Further, the process proceeds from step S8 to the simulation reception data input of step S9, and the reception data read from the external storage means 13a to the input terminal 4b of the input / output terminal unit 4 is taken into the data transfer processing unit 5 and temporarily held. To do.

  If some image data and received data are held in the data transfer processing unit 5 in step S1 and step S2, the image data and received data from the external storage unit 13a are overwritten on the data. Further, the data compression or the like applied to the image data or the received data of the external storage unit 13a is canceled by the reading process of the external storage unit 13a or the writing process of the data transfer processing unit 5, and those data are released. Is automatically expanded to the original state and held in the data transfer processing unit 5.

  In this way, when the data read from the external storage means 13a is expanded and held in the data transfer processing unit 5, the operation processing unit 6 moves from step S9 to step S4, so that the arithmetic processing unit 6 performs the data transfer processing unit 5. Is read (step S4), calculation processing is performed, data of the processing result (simulation result) is sent to the communication bus 9a, and data of the calculation process is output to the data transfer processing unit 5 (step S4). Step S5).

  At this time, the data transfer processing unit 5 sends the received data from the external storage unit 13a and the data of the calculation process from the calculation processing unit 6 to the output terminal 4a of the input / output terminal unit 4 (step S6), and the external storage unit The image data from 13a is also sent to the output terminal 4a of the output terminal unit 4 (step S7).

  The development / evaluation simulation is realized by repeating the processes of steps S3, S8, S9, S4, and S5.

  Further, the processes in steps S6 and S7 are invalid if nothing is connected to the output terminal 4a of the input / output terminal unit 4 as shown in FIG. 4. However, as shown in FIG. When the external storage means 11 for collecting new data in the recording state is connected as a simulation data storage means, the external storage means 11 receives received data, image data at the time of development / evaluation simulation, and the calculation process based on these data. Data can be accumulated and collected.

  When data at the time of development / evaluation simulation is collected, for example, it is possible to carry out a comparative evaluation between the data being calculated at the time of development / evaluation data collection and the data being calculated at the time of simulation of development / evaluation. In addition, there is an advantage that the in-vehicle processing apparatus 1a can be more easily developed and evaluated.

  The simulation device 14a has a function of displaying a running state on a display means (not shown), a function of changing the algorithm and constants of the arithmetic processing unit 6 based on an instruction from an instruction means (not shown), and confirming the effect. Also have.

[When permanently installed]
When the above-described data collection and simulation development / evaluation is completed, the in-vehicle processing device 1a is permanently installed in the vehicle to be produced. At this time, the in-vehicle processing device 1a is not connected to the input / output terminal unit 4 as shown in FIG.

  When the vehicle produced in this way is running (during normal running), the program of FIG. 7 is executed in steps S1, S2, as in the case of data collection for development / evaluation by starting the engine of the vehicle. The vehicle is repeatedly executed in the order of S3, S4, S5, S6, and S7, and the vehicle is calculated by the arithmetic processing unit 6 on the basis of the momentarily received data from the communication bus 9a and the momentary image data from the detection device 12 obtained during traveling. The control data is calculated, and this data is given from the communication bus 9a to other data processing devices in the vehicle to perform intended vehicle control.

  In steps S6 and S7, the received data, the calculation process data, and the image data of the calculation processing unit 6 are sent to the output terminal 4a of the input / output terminal unit 4 as in the case of data collection. Since nothing is connected, unnecessary data collection is not performed during this normal driving.

  As described above, in the case of this embodiment, the development / evaluation target in-vehicle processing device 1a formed by the data processing device 1 is used for development / evaluation data collection and simulation as it is for development / evaluation. In addition, after development, it can be installed and used as it is in a vehicle, so that a highly versatile data processing apparatus 1 can be provided, and the development can be greatly improved in efficiency and cost. be able to.

  Further, the in-vehicle processing device 1a formed by the data processing device 1 collects and simulates data for development and evaluation in the on-vehicle state. Further, after the development, the in-vehicle processing device 1a is directly mounted on the vehicle and used. A specific data processing method can be provided.

(Second Embodiment)
Next, a second embodiment in which a simulation system outside the vehicle provided with the data processing device 1 is used for the development / evaluation simulation will be described with reference to FIGS. 1 to 3 and FIGS. 6 to 8. To do.

  FIG. 8 is an explanatory diagram of the external connection state and data flow of the non-vehicle processing apparatus 1b formed by the data processing apparatus 1 of FIG.

  This embodiment differs from the first embodiment in that a data processing device (non-vehicle processing device 1b for simulation processing) of a non-vehicle simulation system is formed by using the data processing device 1 of FIG.・ Evaluation data collection and permanent installation after development are carried out by the in-vehicle processing device 1a of FIGS. 3 and 6 formed by the data processing device 1, and the development / evaluation simulation is provided with the non-in-vehicle processing device 1b of FIG. Further, this is implemented by the non-vehicle-mounted simulation system.

  8 is also formed by the data processing device 1. The non-vehicle processing device 1b is different from the vehicle processing device 1a, for example, based on a start / stop button operation and stopped from the start. 7 is repeatedly executed, and reception data and image data are not obtained during the simulation, and the detection device 12 is not connected to the input terminal unit 7.

  Then, by collecting the development / evaluation data and storing the received data, image data, and calculation process data in the external storage means 11 of FIG. 3 in the in-vehicle state of FIG. 3, then the external storage means 11 8 is disconnected from the in-vehicle processing device 1a for data collection and carried to the place of the simulation system outside the vehicle, and the external storage for data provision in FIG. 8 is input to the input terminal 4b of the input / output terminal portion 4 of the non-in-vehicle processing device 1b of this simulation system. Connected as means 13b.

  By the way, the simulation apparatus 14b of FIG. 8 which constitutes a part of the simulation system has the same configuration as the simulation apparatus 14a of FIGS. 4 and 5, and after the external storage means 13b is connected, the simulation apparatus 14b is connected to the non-vehicle processing apparatus. A simulation command α and a data read command β are given to the control unit 6 and the external storage means 13b of 1b. Note that 9b in FIG. 8 is a communication bus of the simulation system. Further, the solid line arrows and the broken line arrows in FIG. 8 are the same as those in FIGS.

  When a start operation is performed and a simulation command α and a data read command β are given to the control unit 6 and the external storage unit 13b, the received data and image data collected in the external storage unit 13b are executed by executing the program of FIG. Based on the above, almost the same simulation data processing as in the simulation of the first embodiment is performed.

  Therefore, in the case of this embodiment, the same effects as those of the first embodiment can be obtained, and the data processing apparatus 1 of FIG. Since it can be used not only for the apparatus 1a) but also for a data processing apparatus (non-in-vehicle processing apparatus 1b) when performing development / evaluation simulation outside the vehicle, the use of the data processing apparatus 1 is further expanded and versatile. There is also a peculiar effect of further improving.

  The present invention is not limited to the above-described embodiment, and various modifications other than those described above can be made without departing from the spirit thereof. For example, the detection device 12 is other than the imaging device. Of course, it may be a device. Further, when the vehicle control calculation can be performed only by the received data from the communication bus, the input terminal unit 7 can be omitted from the data processing device 1. Furthermore, when it is not necessary to collect the data of the calculation process, the output process of the data of the calculation process from the calculation processing unit 6 to the data transfer processing unit 5 can be omitted. Further, the calculation / control program executed by the data processing device 1 as the in-vehicle processing device 1a and the non-in-vehicle processing device 1b may have a configuration different from that shown in FIG.

  The present invention can be applied to a data processing device and a data processing method for various controls of a vehicle.

It is a block diagram of a data processor of a 1st embodiment of the present invention. It is explanatory drawing of the vehicle mounting state of the vehicle-mounted processing apparatus of the 1st Embodiment of this invention. It is explanatory drawing of the external connection state at the time of data collection of the vehicle-mounted processing apparatus of the 1st Embodiment of this invention, and the flow of data. It is explanatory drawing of an example of the external connection state at the time of simulation of the vehicle-mounted processing apparatus of the 1st Embodiment of this invention, and the flow of data. It is explanatory drawing of the other example of the external connection state at the time of simulation of the vehicle-mounted processing apparatus of the 1st Embodiment of this invention, and the flow of data. It is explanatory drawing of the external connection state at the time of permanent mounting of the vehicle-mounted processing apparatus of the 1st Embodiment of this invention, and the flow of data. It is a flowchart of operation | movement description of the 1st Embodiment of this invention. It is explanatory drawing of the external connection state and data flow of the non-vehicle-mounted processing apparatus of the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Data processing apparatus 1a In-vehicle processing apparatus 1b Non-in-vehicle processing apparatus 2 Bus connection terminal part 3 Data receiving part 4 Input / output terminal part 5 Data transmission / reception processing part 6 Arithmetic processing part 7 Input terminal part 8 Vehicle 9a, 9b Communication bus 11 Data collection External storage means 12 Detection device 13a, 13b External storage means for providing data

Claims (5)

A computer-configured data processing device that executes vehicle control calculations that are set based on various types of input vehicle driving state data,
A data receiving unit that receives data input from the communication bus to the bus connection terminal unit;
An external storage means for data collection, an input / output terminal portion to which an external storage means for providing data holding the data of the collection result is connected detachably;
It has a multi-input / output data buffer function, and temporarily stores the data received by the data receiving unit in the initial setting state and outputs it to the input / output terminal unit, and switches from the initial setting state to the simulation state by a simulation command. A data transmission / reception processing unit for temporarily storing data of the collection result input to the input / output terminal unit;
In each of the initial setting state and the simulation state, the calculation of the vehicle control is executed based on the data temporarily stored in the data transfer processing unit, and the vehicle control data of the calculation result is input to the bus connection terminal unit. A data processing apparatus comprising an arithmetic processing unit for outputting. The data processing apparatus according to claim 1, wherein
A detection device that outputs a part of the vehicle running state data further includes an input terminal portion that is detachably connected;
The data transmission / reception processing unit temporarily stores data input to the input terminal unit in the initial setting state and outputs the data to the input / output terminal unit. The vehicle processing device formed by the data processing device according to claim 1 is mounted on a vehicle, and the bus connection terminal portion of the vehicle processing device is connected to the communication bus in the vehicle,
At the time of permanent mounting, the data input / output processing unit of the in-vehicle processing device is set to the initial setting state by holding the input / output terminal unit of the in-vehicle processing device in a non-connected state, and the data reception of the in-vehicle processing device The data received by the unit is temporarily stored in the data transfer processing unit of the in-vehicle processing device and processed by the arithmetic processing unit of the in-vehicle processing device,
At the time of data collection, the external storage means for data collection is connected to the input / output terminal unit of the in-vehicle processing device, and the data received by the data receiving unit of the in-vehicle processing device during traveling of the vehicle To the external storage means for data collection through the data transfer processing unit of
At the time of simulation of running reproduction, the external storage means for data provision formed by the external storage means for data collection after data collection is connected to the input / output terminal portion of the in-vehicle processing device, and the simulation command causes the The data transmission / reception processing unit of the in-vehicle processing device is switched to the simulation state, and the collected data read from the external storage means for providing data is temporarily stored in the data transmission / reception processing unit of the in-vehicle processing device. The data processing method characterized by processing by the said arithmetic processing part of the said vehicle-mounted processing apparatus. At the time of data collection, the in- vehicle processing device formed by the data processing device according to claim 1 is mounted in a vehicle, the bus connection terminal portion of the in-vehicle processing device is connected to the communication bus in the vehicle, and the in-vehicle processing device the input-output terminal portions of the external storage unit for the data collection to connect to through the data exchange processing section of the vehicle processing the in-vehicle apparatus the data that the data receiving unit receives the device while the vehicle is traveling with Collected in the external storage means for data collection,
2. The data formed by the external storage means for data collection after data collection at the input / output terminal portion of the non-vehicle processing device for simulation processing formed by the data processing device according to claim 1 during simulation of running reproduction The external storage means for providing is connected, the data exchange processing unit of the non-vehicle processing apparatus is switched to the simulation state by the simulation command, and the data of the collection result read from the external storage means for data provision Is temporarily stored in the data transfer processing unit of the non-vehicle processing apparatus and processed by the arithmetic processing unit of the non-vehicle processing apparatus. The data processing method according to claim 3 or 4,
The in-vehicle processing device further includes an input terminal unit, and at the time of data collection, a detection device that outputs a part of the vehicle traveling state data is connected to the input terminal unit of the in- vehicle processing device, Data collected by the external storage means for data collection via the data transfer processing unit of the in-vehicle processing device the data received by the data receiving unit of the in-vehicle processing device and the data of the detection device Processing method.

Images