KR100387490B1 - Simulator for 4-shift and 5-shift vehicle - Google Patents

Abstract

The present invention discloses a four speed and five speed vehicle simulator.

The present invention includes an input unit including a simulation signal of the signal of the traveling sensor of the vehicle, and inputs a plurality of signals for simulating a shift control apparatus to be developed; A central processing unit operating according to an operation program of a shift control apparatus to be developed and outputting a driving signal based on a signal output from the input unit; An actuator operating according to the driving signal; A first interface unit which converts the signal output from the input unit to be processed by the central processing unit and inputs the same to the central processing unit; A second interface unit which converts the driving signal output from the central processing unit so as to be processed by the actuator and inputs the same to the actuator; And a display unit for displaying the operating state of the central processing unit.

According to the present invention, it is possible to simulate both the operating state of the four-speed and five-speed vehicle in one simulator. Therefore, the separate cost of developing the simulator is reduced every time the project is developed.

Description

4- and 5-speed vehicle simulators {SIMULATOR FOR 4-SHIFT AND 5-SHIFT VEHICLE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simulator, and more particularly, to a simulator capable of integrally simulating a light vehicle four speed and a new generation five speed shift vehicle.

In general, when developing a vehicle, it is first checked whether the specifications are developed through a simulator before applying them to an actual vehicle.

Since the input or output of the simulator varies according to the characteristics of the project to be developed, a simulator is required as many as the number of projects. Therefore, a separate cost is required for the development of the simulator every time the project is developed.

Therefore, the technical problem to be achieved by the present invention is to simulate both the operating state of the four-speed and five-speed vehicle in one simulator.

1 is a structural diagram of a four-speed and five-speed vehicle simulator according to an embodiment of the present invention.

Figure 2 is a flow chart of the operation of the four-speed and five-speed vehicle simulator in accordance with an embodiment of the present invention.

3 is an exemplary view of a screen displayed through the display unit of the four-speed and five-speed shift vehicle simulator according to an embodiment of the present invention.

The four-speed and five-speed vehicle simulator according to the characteristics of the present invention for achieving the technical problem, includes a simulation signal of the signal of the traveling sensor of the vehicle, input a plurality of signals for simulating the shift control device to be developed An input unit to perform; A central processing unit operating according to an operation program of a shift control apparatus to be developed and outputting a driving signal based on a signal output from the input unit; An actuator operating according to the driving signal; A first interface unit which converts the signal output from the input unit to be processed by the central processing unit and inputs the same to the central processing unit; A second interface unit which converts the driving signal output from the central processing unit so as to be processed by the actuator and inputs the same to the actuator; And a display unit for displaying the operating state of the central processing unit.

In particular, the central processing unit sets a corresponding shift mode when one mode is selected from a mode for simulating a four-speed shift control device and a mode for simulating a five-speed shift control device, and sets the corresponding shift mode according to the set shift mode. Outputs a drive signal for driving.

At this time, the central processing unit automatically calculates a drive signal for operating the actuator based on a manual mode for outputting a signal input from the input unit as a drive signal, and a simulation signal of a signal of a traveling sensor of the vehicle input from the input unit. Mode, which operates in one of the program modes, which produces a drive signal with a value already set.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. While many specific details, such as the following description and the annexed drawings, are shown to provide a more general understanding of the invention, these specific details are illustrated for the purpose of explanation of the invention and are not meant to limit the invention thereto. And a detailed description of known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

In developing a shift control device for controlling light vehicle four-speed and new generation A / T, it is not time and economically unreasonable to use a real automatic transmission and a vehicle to verify the software and hardware of the shift control device. Therefore, the present invention provides a simulator that simulates the characteristics of the actual automatic transmission and the vehicle to be used as a transmission control unit (TCU) development and verification tool.

1 is a view showing the structure of the four-speed and five-speed vehicle simulator according to an embodiment of the present invention.

As shown in FIG. 1, a simulator for a four-speed and five-speed vehicle according to an embodiment of the present invention (hereinafter, referred to as a "simulator") includes an input unit 10, a first interface unit 20, and a center. A processing unit 30, a second interface unit 40, a display unit 50, a RAM 60, and an EEPROM 70, and a shift stage setting actuator 80 on an output side of the second interface unit 40, The shift actuator 90 is connected, and the PC 100 or other external device 110 is also connected.

The input unit 10 includes a shift stage input 11 that simulates a signal according to an operation of a shift lever, a driving mode input 12 that simulates various electric loads for operating an automatic transmission and an actuator mounted on a vehicle, and the present invention. An operation mode input 13 for inputting an operation mode signal for operating the simulator according to an embodiment of the present invention, a driving sensor input 14 for simulating output signals of various sensors mounted on an actual automatic transmission, and a vehicle and various data inputs It includes a keypad 15 for. In particular, the input unit 10 may be composed of various knobs and switches installed on the front panel of the simulator for inputting such various signals.

Here, the shift stage input 11 is an inhibitor switch for outputting P, R, N, D, 3, 2, and L stage selection signals, and the operation mode input 13 is an operation of a simulator according to an embodiment of the present invention. It may be in the form of a rotary knob to selectively set the mode to manual mode, automatic mode, or program mode.

The first interface 20 processes the central processing unit 30 to process various signals input through the input unit 10, and specifically, the shift stage input 11, the driving mode input 12, and the operation. Digital interface 21 for inputting the signal output from the mode input 13 to the central processing unit 30, digital signal so that the central processing unit 30 can recognize the analog signal output from the travel sensor input 14 An analog interface unit 22 for converting into a signal, and a keypad interface unit 23 for inputting a signal output from the keypad 15 to the central processing unit 30 are included.

The RAM 60 stores the setup parameters of the simulator, the simulator pattern, etc. to be preserved even at power off. In this embodiment, the DS1243Y, which is an 8 Kbyte battery backup RAM, is used. The EEPROM 70 stores various programs for driving the simulator, that is, programs of a shift control device to be developed, for example, a 4-speed shift control device simulation program and a 5-speed shift control device simulation program.

The second interface unit 40 processes a signal output from the central processing unit 30 so that various actuators 80 and 90 or the external device 110 can recognize it. Specifically, in the central processing unit 30 D / A converter 41 for converting the output digital signal into an analog signal and outputting it to the shift stage setting actuator 80 or the shift actuator 90, and the EPP interface unit 42 for connecting an external PC 100 to the simulator. ), An address decoding unit 43 connecting the external device 110 to the simulator.

In the development of the simulator, it is necessary to monitor the variable state of the simulator using a PC in order to monitor debugging and operating conditions, and also to control the simulator using the PC. Therefore, in the embodiment of the present invention, the 1Kbyte dual port RAM CY7C130 is installed in the address 0x0D000-0x0D3FF area, and the data communication is performed between the dual port RAM and the PC through the EPP interface unit 42. Thus, the central processing unit accesses the address area 0x0D000-0x0D3FF with the dual port RAM, and the PC 100 accesses the EPP mode communication using the printer port, thereby exchanging data between the central processing unit 30 and the PC 100. This is done.

The display unit 50 displays the state of the simulator, and also displays a user input signal input through the operation mode input 13 or the keypad 15.

The central processing unit 30 operates on the basis of various signals input through the input unit 10, and in particular, operates the actuators 80 and 90 by processing signals according to a program according to the characteristics of the shift control apparatus to be developed. Outputs a signal for In the embodiment of the present invention, the central processing unit 30 operates according to a program for performing both a light vehicle four speed and a new generation five speed shift operation.

The simulator according to the embodiment of the present invention having such a structure operates in three modes.

The first mode is a manual mode, which is used to verify the hardware and firmware of the shift control device to be developed. When the manual mode is selected through the operation mode input 13, the central processing unit 30 controls the operation mode input 13 and the digital interface unit 21 according to the user's operation of the adjustment knob and the switch installed on the front panel of the simulator. An output signal is output in accordance with the signals input through the actuator to drive the actuator 80.90. That is, the output signals of the simulator are independently adjusted manually and output.

The second mode is used to verify the software of the shift control device to be developed as an auto mode, and the output speed, TPS (through the driving mode input 12) is adjusted by using adjustment knobs and switches installed on the front panel of the simulator. throttle position sensor), slip RPM, inhibitor switch, mode switch, brake switch, cooler switch, OTS, engine torque, torque reduction level, TCS no-shift request, automatic driving on / off status, etc. The input speed, the engine speed, the vehicle speed, and the state of the idle switch are calculated by the built-in program, and the value is displayed through the display unit 50, and also drives the corresponding actuators 80 and 90.

The third mode is a program mode, in which a signal is not input through the input unit 10 irrespective of adjustment knobs and switches on the simulator, and the central processing unit 30 outputs preprogrammed signal values, thereby repeating the pattern. Output control or signal values corresponding to specific driving conditions are verified to verify the control logic and software of the shift control device. Also in this mode, the central processing unit may generate data output by communicating with the PC 100 via the EPP interface unit 42.

As described above, the simulator according to the embodiment of the present invention operates on the basis of the manual mode, the automatic mode, and the program mode to perform the 4 speed and the 5 speed shift simulations, respectively. 4 and 5 according to the embodiment of the present invention. A flowchart of the operation of the speed change vehicle simulator is shown.

When the power is supplied to the simulator and the start of the actuators 80 and 90 is turned on, that is, a start switch or the like for driving the actuators 80 and 90 is activated, the central processing unit 30 shifts to four speeds and five speeds. In order to perform the shift simulation, all used variables and respective devices are initialized (S100 to S120).

Next, when a screen for selecting a shift mode to be simulated is displayed on the PC 100 connected through the EPP interface unit 42 of the simulator, the user selects the shift mode to be simulated and selects the selected shift mode. The signal corresponding to the signal is processed according to the protocol set between the simulator and the PC and input to the central processing unit 30 of the simulator.

When the 4-speed mode is selected, the central processing unit 30 sets the operation mode of the simulator to the 4-speed shift mode for 4-speed shift simulation, and transmits the setting result to the PC 100 so that the mode set on the screen is changed. Display is made (S130 to S140).

On the other hand, the four-speed mode is selected to set the operation mode of the controller to the four-speed shift mode that can perform the four-speed shift simulation, and transmits the setting result to the PC 100 to display the set mode on the screen (S150). ).

After displaying the set mode as described above (S160), the central processing unit 30 performs the simulation according to the set shift mode, and in particular, based on the program for the shift control device simulation corresponding to the mode selected from the EEPROM 70. To perform the simulation. That is, the central processing unit 30 performs the four-speed simulation by driving the actuators 80 and 90 based on various data input through the input unit 10 based on the TCU program corresponding to the four-speed shift mode, or 5 A 5 speed simulation is performed by driving the actuators 80 and 90 based on various data input through the input unit 10 based on the TCU program corresponding to the speed shift mode (S170).

3 illustrates an example of various data input through the input unit 10 for this simulation. The screen for inputting data for simulation as shown in FIG. 3 may be displayed on the PC 100. Accordingly, the user performs a TCU simulation for a desired shift mode through the PC 100. FIG. You can do it.

As such, by precisely analyzing the operation of the TCU, it is possible to more specifically write software specifications in developing the TCU itself.

According to the embodiment of the present invention as described above, it is possible to simulate the operating state of the four-speed and five-speed vehicle in one simulator. Therefore, the separate cost of developing the simulator is reduced every time the project is developed.

Claims (3)

An input unit including a simulation signal of a signal of a traveling sensor of a vehicle and inputting a plurality of signals for simulating a shift control apparatus to be developed; A central processing unit operating according to an operation program of a shift control apparatus to be developed and outputting a driving signal based on a signal output from the input unit; An actuator operating according to the driving signal; A first interface unit which converts the signal output from the input unit to be processed by the central processing unit and inputs the same to the central processing unit; A second interface unit which converts the driving signal output from the central processing unit so as to be processed by the actuator and inputs the same to the actuator; And Display unit for displaying the operating state of the central processing unit Simulator that includes. The method of claim 1, The central processing unit sets a corresponding shift mode when one mode is selected from among a 4-speed mode for simulating a 4-speed shift control device and a mode for simulating a 5-speed shift control device, and sets the actuator according to the shift mode. Simulator that outputs a drive signal for driving. The method according to claim 1 or 2, The central processing unit may be a manual mode for outputting a signal input from the input unit as a drive signal, an automatic mode for calculating a drive signal for operating the actuator based on a simulation signal of a signal of a traveling sensor of a vehicle input from the input unit, A simulator characterized in that it operates in one of the program modes for calculating a drive signal with a value already set.