An electric chassis vehicle simulation device
By designing the electric chassis car simulation device and using control chips and circuits to simulate the working conditions of the electric chassis car, the problem of cumbersome testing of the electric chassis car controller is solved, and the testing is simplified and the site is saved.
Patent Information
- Application Number
- CN202111505016.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-12-10
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2041-12-10
AI Technical Summary
The lack of special testing equipment for electric chassis controllers leads to cumbersome testing work and requires a large testing site.
An electric chassis car simulation device is designed, including a control chip, signal extraction circuit, control output circuit and power processing circuit. By simulating the working condition of the electric chassis car, the controller test is completed instead of the actual electric chassis car.
The test work of the electric chassis car controller is simplified, the structure is simple, the functions are complete, and the operation and maintenance are convenient, avoiding the need to prepare large-scale test sites.
Smart Images
Figure CN114199589B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a simulation device, in particular to an electric chassis vehicle simulation device, belonging to the technical field of electric chassis vehicle testing. Background Art
[0002] With the continuous advancement of the intelligent upgrading and transformation of substations, the demand for intelligent switch cabinets for installing electric chassis vehicles and electric ground cutters is gradually increasing. The intelligent switch cabinet realizes the four states of "operation", "hot standby", "cold standby" and "line maintenance" with five-protection one-button safety switching through long-distance remote control operation, which effectively improves the personal safety of operators. As the core controller of the electric chassis vehicle and the electric ground cutter, the finished controller needs to be functionally tested before leaving the factory to ensure the quality of the product. At present, there is no special test equipment for electric chassis vehicle controllers. Enterprises generally need to prepare an electric chassis vehicle and install the controller to be tested in the electric chassis vehicle to complete various tests. The operation is cumbersome and requires a larger test site. Summary of the invention
[0003] The technical problem to be solved by the present invention is to provide an electric chassis vehicle simulation device to facilitate the testing work of the electric chassis vehicle controller.
[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:
[0005] An electric chassis vehicle simulation device is characterized in that it comprises a control chip, a signal extraction circuit, a control output circuit and a power processing circuit, the control chip is respectively connected to the signal extraction circuit, the control output circuit and the power processing circuit, the signal extraction circuit and the power processing circuit are respectively connected to the A and B motor output terminals of the electric chassis vehicle controller, the control output circuit is connected to the HW, FW, and COM signal input terminals of the electric chassis vehicle controller, and the power processing circuit generates a stable voltage to power each module.
[0006] Furthermore, the control chip adopts STC11 chip U1.
[0007] Furthermore, pin 8 of the chip U1 is grounded, pin 9 of the chip U1 is connected to pin 1 of the micro switch S1 and one end of the resistor R7, the other end of the resistor R7 is connected to VCC, pin 2 of the micro switch S1 is connected to one end of the resistor R8, the other end of the resistor R8 is grounded, pin 15 of the chip U1 is connected to the anode of the light-emitting diode L5, the cathode of the light-emitting diode L5 is connected to one end of the resistor R6, the other end of the resistor R6 is grounded, and pin 16 of the chip U1 is connected to VCC.
[0008] Furthermore, the signal extraction circuit includes a photocoupler Q1 and a photocoupler Q2, wherein pin 3 of the photocoupler Q1 is connected to pin 6 of the chip U1 and one end of the resistor R2, the other end of the resistor R2 is connected to VCC, pin 4 of the photocoupler Q1 is grounded, pin 3 of the photocoupler Q2 is connected to pin 7 of the chip U1 and one end of the resistor R3, the other end of the resistor R3 is connected to VCC, pin 4 of the photocoupler Q2 is grounded, pin 1 of the photocoupler Q1 is connected to the cathode of the light-emitting diode L1, pin 2 of the photocoupler Q1 is connected to the anode of the diode D1, pin 1 of the photocoupler Q2 is connected to the cathode of the light-emitting diode L2, pin 2 of the photocoupler Q2 is connected to the anode of the diode D2, the anode of the light-emitting diode L1 and the cathode of the diode D2 are connected to the A motor output end of the electric chassis vehicle controller, the cathode of the diode D1 and the anode of the light-emitting diode L2 are connected to one end of the resistor R1, and the other end of the resistor R1 is connected to the B motor output end of the electric chassis vehicle controller.
[0009] Furthermore, the power processing circuit includes a DCDC module U2, wherein pin 1 of the DCDC module U2 is connected to one end of a capacitor C5, a positive electrode of an electrolytic capacitor C3 and pin 3 of a rectifier module B1, pin 2 of the DCDC module U2 is connected to the other end of the capacitor C5, a negative electrode of the electrolytic capacitor C3 and pin 4 of the rectifier module B1, pin 1 of the rectifier module B1 is connected to an output end of motor A of an electric chassis vehicle controller, pin 2 of the rectifier module B1 is connected to an output end of motor B of the electric chassis vehicle controller, pin 7 of the DCDC module U2 is connected to a positive electrode of an electrolytic capacitor C2, one end of a capacitor C4 and VCC, and pin 5 of the DCDC module U2 is connected to a negative electrode of an electrolytic capacitor C2, the other end of the capacitor C4 and grounded.
[0010] Furthermore, the control output circuit comprises a dual-position magnetic latching relay J1 and a relay J2, wherein pin 1 of the dual-position magnetic latching relay J1 is connected to VCC and the cathode of a diode D3, pin 2 of the dual-position magnetic latching relay J1 is connected to the anode of a diode D3 and pin 10 of a chip U1, pin 3 of the dual-position magnetic latching relay J1 is connected to VCC and the cathode of a diode D4, pin 4 of the dual-position magnetic latching relay J1 is connected to the anode of a diode D4 and pin 11 of a chip U1, pin 5 of the dual-position magnetic latching relay J1 is connected to pin 6 of the relay J2, pin 6 of the dual-position magnetic latching relay J1 is connected to the FW signal input terminal of the electric chassis vehicle controller, and pin 7 of the dual-position magnetic latching relay J1 is connected to the FW signal input terminal of the electric chassis vehicle controller. The HW signal input end of the controller, pin 8 of the two-position magnetic latching relay J1 is connected to pin 3 of relay J2, pin 9 of the two-position magnetic latching relay J1 is connected to the cathode of light-emitting diode L4, pin 10 of the two-position magnetic latching relay J1 is connected to the cathode of light-emitting diode L3, the anode of light-emitting diode L3 is connected to one end of resistor R4, the anode of light-emitting diode L4 is connected to one end of resistor R5, the other end of resistor R4 and the other end of resistor R5 are connected to VCC, pin 1 of relay J2 is connected to pin 12 of chip U1 and the anode of diode D5, pin 8 of relay J2 is connected to VCC and the cathode of diode D5, pin 7 of relay J2 is connected to the COM signal input end of the electric chassis vehicle controller, and pin 2 of relay J2 is grounded.
[0011] A simulation method for an electric chassis vehicle simulation device, characterized by comprising the following steps:
[0012] When the electric chassis vehicle simulation device receives the propulsion voltage from the electric chassis vehicle controller, the A end of the electric chassis vehicle simulation device obtains positive electricity, the B end obtains negative electricity, and the power processing circuit obtains electricity to generate a stable voltage to power each module; the photoelectric coupler Q1 of the signal extraction circuit extracts the propulsion signal, and the chip U1 starts timing the propulsion signal. When the timing time is less than the short delay, the chip U1 controls the control output circuit to maintain the original state unchanged; when the timing time is greater than the short delay, the YDOUT of the chip U1 is set low, the relay J2 is closed, and the COM is disconnected from the HW and FW, simulating that the electric chassis vehicle is in motion; when the timing time is greater than the long delay, the Delay, HQOUT of chip U1 is set low, dual-position magnetic latching relay J1 is actuated, and YDOUT of chip U1 is set high at the same time, relay J2 is released, HW and COM are short-circuited, and a closing signal is output to the electric chassis vehicle controller. The electric chassis vehicle controller receives the closing signal, and stops the output voltages of A and B after a short delay. After a medium delay, the electric chassis vehicle controller outputs a reverse voltage of A negative and B positive for a short delay. The photoelectric coupler Q2 of the signal extraction circuit extracts the exit signal, and chip U1 starts timing the exit signal. When the timing time is less than the short delay, chip U1 controls the output circuit to maintain the original state.
[0013] When the electric chassis vehicle simulation device receives the exit voltage sent by the electric chassis vehicle controller, the A terminal of the electric chassis vehicle simulation device obtains negative electricity, the B terminal obtains positive electricity, and the power processing circuit obtains electricity to generate a stable voltage to power each module; the optocoupler Q2 of the signal extraction circuit extracts the exit signal, and the chip U1 starts timing the exit signal. When the timing time is less than the short delay, the chip U1 controls the control output circuit to maintain the original state; when the timing time is greater than the short delay, the YDOUT of the chip U1 is set low, the relay J2 is closed, and the COM is disconnected from the HW and FW, simulating that the electric chassis vehicle is in motion; when the timing time is greater than the long delay, the Delay, FQOUT of chip U1 is set low, and the two-position magnetic holding relay J1 is activated. At the same time, YDOUT of chip U1 is set high, relay J2 is released, FW and COM are short-circuited, and the position-separation signal is output to the electric chassis vehicle controller. The electric chassis vehicle controller receives the position-separation signal, and the short delay time stops the A and B output voltages. After the medium delay time, the electric chassis vehicle controller outputs the reverse voltage A positive and B negative for the short delay time. The optocoupler Q1 of the signal extraction circuit extracts the propulsion signal, and chip U1 starts timing the propulsion signal. When the timing time is less than the short delay, chip U1 controls the control output circuit to maintain the original state.
[0014] Furthermore, when the micro switch S1 is in the short-circuit position 1 and 2, the chip U1 simulates the action sequence of the electric chassis vehicle; when the micro switch S1 is in the short-circuit position 1 and 3, the chip U1 simulates the action sequence of the electric ground knife; the long delay time of the electric ground knife is inconsistent with that of the electric chassis vehicle during movement.
[0015] Furthermore, when the chip U1 detects that the timing of the controller is correct, the LED L5 is always on, and when the timing is wrong, the LED L5 flashes.
[0016] Compared with the prior art, the present invention has the following advantages and effects: the electric chassis vehicle simulation device of the present invention simulates the working condition of the electric chassis vehicle through a simple circuit. When the electric chassis vehicle control device sends out a forward / reverse voltage, the simulation device simulates the forward / reverse action of the electric chassis vehicle motor and simulates sending out a corresponding position signal according to the power-on time, thereby replacing the electric chassis vehicle to complete the test of the electric chassis vehicle control device. The electric chassis vehicle simulation device of the present invention has the advantages of simple structure, complete functions, reasonable design, convenient operation and maintenance, etc. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of an electric chassis vehicle simulation device of the present invention.
[0018] Figure 2 It is a circuit diagram of the control chip of the present invention.
[0019] Figure 3 is a circuit diagram of a signal extraction circuit of the present invention.
[0020] Figure 4 is a circuit diagram of a power processing circuit of the present invention.
[0021] Figure 5 is a circuit diagram of a control output circuit of the present invention.
[0022] Figure 6 It is a usage state diagram of an electric chassis vehicle simulation device of the present invention. DETAILED DESCRIPTION
[0023] In order to elaborate on the technical scheme adopted by the present invention to achieve the predetermined technical purpose, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only partial embodiments of the present invention, rather than all embodiments, and the technical means or technical features in the embodiments of the present invention can be replaced without paying creative work. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.
[0024] like Figure 1 As shown, an electric chassis vehicle simulation device of the present invention comprises a control chip 1, a signal extraction circuit 2, a control output circuit 3 and a power processing circuit 4, the control chip 1 is respectively connected to the signal extraction circuit 2, the control output circuit 3 and the power processing circuit 4, the signal extraction circuit 2 and the power processing circuit 4 are respectively connected to the A and B motor output terminals of the electric chassis vehicle controller, the control output circuit 3 is connected to the HW, FW, COM signal input terminals of the electric chassis vehicle controller, and the power processing circuit 4 generates a stable voltage to power each module.
[0025] like Figure 2 As shown, the control chip uses STC11 chip U1, which has low cost and reduces the manufacturing cost of the overall analog device. Pin 8 of chip U1 is grounded, pin 9 of chip U1 is connected to pin 1 of micro switch S1 and one end of resistor R7, the other end of resistor R7 is connected to VCC, pin 2 of micro switch S1 is connected to one end of resistor R8, the other end of resistor R8 is grounded, pin 15 of chip U1 is connected to the anode of light emitting diode L5, the cathode of light emitting diode L5 is connected to one end of resistor R6, the other end of resistor R6 is grounded, and pin 16 of chip U1 is connected to VCC.
[0026] like Figure 3As shown, the signal extraction circuit includes a photocoupler Q1 and a photocoupler Q2, pin 3 of the photocoupler Q1 is connected to pin 6 of the chip U1 and one end of the resistor R2, the other end of the resistor R2 is connected to VCC, pin 4 of the photocoupler Q1 is grounded, pin 3 of the photocoupler Q2 is connected to pin 7 of the chip U1 and one end of the resistor R3, the other end of the resistor R3 is connected to VCC, pin 4 of the photocoupler Q2 is grounded, pin 1 of the photocoupler Q1 is connected to the cathode of the light-emitting diode L1, pin 2 of the photocoupler Q1 is connected to the anode of the diode D1, pin 1 of the photocoupler Q2 is connected to the cathode of the light-emitting diode L2, pin 2 of the photocoupler Q2 is connected to the anode of the diode D2, the anode of the light-emitting diode L1 and the cathode of the diode D2 are connected to the A motor output terminal of the electric chassis vehicle controller, the cathode of the diode D1 and the anode of the light-emitting diode L2 are connected to one end of the resistor R1, and the other end of the resistor R1 is connected to the B motor output terminal of the electric chassis vehicle controller. When the signal extraction circuit is working, when advancing, A+ passes through the light-emitting diode L1, the photocoupler Q1, the diode D1, and the resistor R1 to B-; the photocoupler Q1 is turned on, HQXH is connected to the chip U1, and the chip U1 obtains the advancement signal; when exiting, B+ passes through the resistor R1, the light-emitting diode L2, the photocoupler Q2, and the diode D2 to A-; the photocoupler Q2 is turned on, FQXH is connected to the chip U1, and the chip U1 obtains the exit signal.
[0027] like Figure 4 As shown, the power processing circuit includes a DCDC module U2, wherein the pin 1 of the DCDC module U2 is connected to one end of the capacitor C5, the positive electrode of the electrolytic capacitor C3 and the pin 3 of the rectifier module B1, the pin 2 of the DCDC module U2 is connected to the other end of the capacitor C5, the negative electrode of the electrolytic capacitor C3 and the pin 4 of the rectifier module B1, the pin 1 of the rectifier module B1 is connected to the A motor output end of the electric chassis vehicle controller, the pin 2 of the rectifier module B1 is connected to the B motor output end of the electric chassis vehicle controller, the pin 7 of the DCDC module U2 is connected to the positive electrode of the electrolytic capacitor C2, one end of the capacitor C4 and VCC, and the pin 5 of the DCDC module U2 is connected to the negative electrode of the electrolytic capacitor C2, the other end of the capacitor C4 and grounded. When the power processing circuit is working, the A and B voltages are rectified by the rectifier module B1, filtered by the electrolytic capacitor C3 and the capacitor C5 to supply power to the DCDC module U2, and the output voltage of the DCDC module U2 supplies power to the relay, the control chip and the optocoupler.
[0028] like Figure 5As shown, the control output circuit includes a dual-position magnetic latching relay J1 and a relay J2, wherein pin 1 of the dual-position magnetic latching relay J1 is connected to VCC and the cathode of a diode D3, pin 2 of the dual-position magnetic latching relay J1 is connected to the anode of a diode D3 and pin 10 of a chip U1, pin 3 of the dual-position magnetic latching relay J1 is connected to VCC and the cathode of a diode D4, pin 4 of the dual-position magnetic latching relay J1 is connected to the anode of a diode D4 and pin 11 of a chip U1, pin 5 of the dual-position magnetic latching relay J1 is connected to pin 6 of the relay J2, pin 6 of the dual-position magnetic latching relay J1 is connected to the FW signal input terminal of the electric chassis vehicle controller, and pin 7 of the dual-position magnetic latching relay J1 is connected to the electric chassis vehicle controller. The HW signal input terminal of the dual-position magnetic latching relay J1 is connected to the 3rd pin of the relay J2, the 9th pin of the dual-position magnetic latching relay J1 is connected to the cathode of the light-emitting diode L4, the 10th pin of the dual-position magnetic latching relay J1 is connected to the cathode of the light-emitting diode L3, the anode of the light-emitting diode L3 is connected to one end of the resistor R4, the anode of the light-emitting diode L4 is connected to one end of the resistor R5, the other end of the resistor R4 and the other end of the resistor R5 are connected to VCC, the 1st pin of the relay J2 is connected to the 12th pin of the chip U1 and the anode of the diode D5, the 8th pin of the relay J2 is connected to VCC and the cathode of the diode D5, the 7th pin of the relay J2 is connected to the COM signal input terminal of the electric chassis vehicle controller, and the 2nd pin of the relay J2 is grounded. When the control output circuit is working, the light-emitting diodes L3 and L4 locally display the position status of the analog device.
[0029] like Figure 6 As shown, in the electric chassis vehicle simulation device of the present invention, A and B are the motor power outputs of the electric chassis vehicle controller; HW (closed position), FW (open position), and COM (common end) are the signal inputs of the electric chassis vehicle controller.
[0030] A simulation method of an electric chassis vehicle simulation device comprises the following steps:
[0031] When the electric chassis vehicle simulation device receives the propulsion voltage from the electric chassis vehicle controller, the A end of the electric chassis vehicle simulation device obtains positive electricity, the B end obtains negative electricity, and the power processing circuit obtains electricity to generate a stable voltage to power each module; the photoelectric coupler Q1 of the signal extraction circuit extracts the propulsion signal, and the chip U1 starts timing the propulsion signal. When the timing time is less than the short delay, the chip U1 controls the control output circuit to maintain the original state unchanged; when the timing time is greater than the short delay, the YDOUT of the chip U1 is set low, the relay J2 is closed, and the COM is disconnected from the HW and FW, simulating that the electric chassis vehicle is in motion; when the timing time is greater than the long delay, the Delay, HQOUT of chip U1 is set low, dual-position magnetic latching relay J1 is actuated, and YDOUT of chip U1 is set high at the same time, relay J2 is released, HW and COM are short-circuited, and a closing signal is output to the electric chassis vehicle controller. The electric chassis vehicle controller receives the closing signal, and stops the output voltages of A and B after a short delay. After a medium delay, the electric chassis vehicle controller outputs a reverse voltage of A negative and B positive for a short delay. The photoelectric coupler Q2 of the signal extraction circuit extracts the exit signal, and chip U1 starts timing the exit signal. When the timing time is less than the short delay, chip U1 controls the output circuit to maintain the original state.
[0032] When the electric chassis vehicle simulation device receives the exit voltage sent by the electric chassis vehicle controller, the A terminal of the electric chassis vehicle simulation device obtains negative electricity, the B terminal obtains positive electricity, and the power processing circuit obtains electricity to generate a stable voltage to power each module; the optocoupler Q2 of the signal extraction circuit extracts the exit signal, and the chip U1 starts timing the exit signal. When the timing time is less than the short delay, the chip U1 controls the control output circuit to maintain the original state; when the timing time is greater than the short delay, the YDOUT of the chip U1 is set low, the relay J2 is closed, and the COM is disconnected from the HW and FW, simulating that the electric chassis vehicle is in motion; when the timing time is greater than the long delay, the Delay, FQOUT of chip U1 is set low, and the two-position magnetic holding relay J1 is activated. At the same time, YDOUT of chip U1 is set high, relay J2 is released, FW and COM are short-circuited, and the position-separation signal is output to the electric chassis vehicle controller. The electric chassis vehicle controller receives the position-separation signal, and the short delay time stops the A and B output voltages. After the medium delay time, the electric chassis vehicle controller outputs the reverse voltage A positive and B negative for the short delay time. The optocoupler Q1 of the signal extraction circuit extracts the propulsion signal, and chip U1 starts timing the propulsion signal. When the timing time is less than the short delay, chip U1 controls the control output circuit to maintain the original state.
[0033] When the micro switch S1 is in the short-circuit position 1 and 2, the chip U1 simulates the action sequence of the electric chassis vehicle; when the micro switch S1 is in the short-circuit position 1 and 3, the chip U1 simulates the action sequence of the electric ground knife; the long delay time of the electric ground knife is inconsistent with that of the electric chassis vehicle during movement.
[0034] If the timing of the chip U1 detection controller is correct, the LED L5 will be always on; if the timing is wrong, the LED L5 will flash.
[0035] The electric chassis vehicle simulation device of the present invention simulates the working condition of the electric chassis vehicle through a simple circuit. When the electric chassis vehicle control device sends out a forward / reverse voltage, the simulation device simulates the forward / reverse action of the electric chassis vehicle motor and simulates sending out a corresponding position signal according to the power-on time, thereby replacing the electric chassis vehicle to complete the test of the electric chassis vehicle control device. The electric chassis vehicle simulation device of the present invention has the advantages of simple structure, complete functions, reasonable design, convenient operation and maintenance, etc.
[0036] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement made to the above embodiments without departing from the content of the technical solution of the present invention, based on the technical essence of the present invention, within the spirit and principles of the present invention, still fall within the protection scope of the technical solution of the present invention.
Claims
1. An electric chassis vehicle simulation device, characterized in that: It includes a control chip, a signal extraction circuit, a control output circuit and a power processing circuit. The control chip is connected to the signal extraction circuit, the control output circuit and the power processing circuit respectively. The signal extraction circuit and the power processing circuit are connected to the A and B motor output terminals of the electric chassis vehicle controller respectively. The control output circuit is connected to the HW, FW, and COM signal input terminals of the electric chassis vehicle controller. The power processing circuit generates a stable voltage to supply power to each module. The control chip adopts STC11 chip U1; Pin 8 of the chip U1 is grounded, Pin 9 of the chip U1 is connected to Pin 1 of the micro switch S1 and one end of the resistor R7, the other end of the resistor R7 is connected to VCC, Pin 2 of the micro switch S1 is connected to one end of the resistor R8, the other end of the resistor R8 is grounded, Pin 15 of the chip U1 is connected to the anode of the light-emitting diode L5, the cathode of the light-emitting diode L5 is connected to one end of the resistor R6, the other end of the resistor R6 is grounded, and Pin 16 of the chip U1 is connected to VCC; The signal extraction circuit comprises a photocoupler Q1 and a photocoupler Q2, wherein the 3rd pin of the photocoupler Q1 is connected to the 6th pin of the chip U1 and one end of the resistor R2, the other end of the resistor R2 is connected to VCC, the 4th pin of the photocoupler Q1 is grounded, the 3rd pin of the photocoupler Q2 is connected to the 7th pin of the chip U1 and one end of the resistor R3, the other end of the resistor R3 is connected to VCC, the 4th pin of the photocoupler Q2 is grounded, the 1st pin of the photocoupler Q1 is connected to the cathode of the light-emitting diode L1, the 2nd pin of the photocoupler Q1 is connected to the anode of the diode D1, the 1st pin of the photocoupler Q2 is connected to the cathode of the light-emitting diode L2, the 2nd pin of the photocoupler Q2 is connected to the anode of the diode D2, the anode of the light-emitting diode L1 and the cathode of the diode D2 are connected to the A motor output end of the electric chassis vehicle controller, the cathode of the diode D1 and the anode of the light-emitting diode L2 are connected to one end of the resistor R1, and the other end of the resistor R1 is connected to the B motor output end of the electric chassis vehicle controller; The power processing circuit comprises a DCDC module U2, wherein pin 1 of the DCDC module U2 is connected to one end of a capacitor C5, a positive electrode of an electrolytic capacitor C3 and pin 3 of a rectifier module B1, pin 2 of the DCDC module U2 is connected to the other end of the capacitor C5, a negative electrode of the electrolytic capacitor C3 and pin 4 of the rectifier module B1, pin 1 of the rectifier module B1 is connected to an output end of a motor A of an electric chassis vehicle controller, pin 2 of the rectifier module B1 is connected to an output end of a motor B of the electric chassis vehicle controller, pin 7 of the DCDC module U2 is connected to the positive electrode of an electrolytic capacitor C2, one end of a capacitor C4 and VCC, and pin 5 of the DCDC module U2 is connected to the negative electrode of an electrolytic capacitor C2, the other end of the capacitor C4 and grounded; The control output circuit comprises a dual-position magnetic latching relay J1 and a relay J2, wherein pin 1 of the dual-position magnetic latching relay J1 is connected to VCC and the cathode of a diode D3, pin 2 of the dual-position magnetic latching relay J1 is connected to the anode of the diode D3 and pin 10 of the chip U1, pin 3 of the dual-position magnetic latching relay J1 is connected to VCC and the cathode of a diode D4, pin 4 of the dual-position magnetic latching relay J1 is connected to the anode of the diode D4 and pin 11 of the chip U1, pin 5 of the dual-position magnetic latching relay J1 is connected to pin 6 of the relay J2, pin 6 of the dual-position magnetic latching relay J1 is connected to the FW signal input terminal of the electric chassis vehicle controller, and pin 7 of the dual-position magnetic latching relay J1 is connected to the HW signal input terminal, pin 8 of the two-position magnetic latching relay J1 is connected to pin 3 of relay J2, pin 9 of the two-position magnetic latching relay J1 is connected to the cathode of light-emitting diode L4, pin 10 of the two-position magnetic latching relay J1 is connected to the cathode of light-emitting diode L3, the anode of light-emitting diode L3 is connected to one end of resistor R4, the anode of light-emitting diode L4 is connected to one end of resistor R5, the other end of resistor R4 and the other end of resistor R5 are connected to VCC, pin 1 of relay J2 is connected to pin 12 of chip U1 and the anode of diode D5, pin 8 of relay J2 is connected to VCC and the cathode of diode D5, pin 7 of relay J2 is connected to the COM signal input terminal of the electric chassis vehicle controller, and pin 2 of relay J2 is grounded.
2. A simulation method for an electric chassis vehicle simulation device according to claim 1, characterized in that The following steps are involved: When the electric chassis vehicle simulation device receives the propulsion voltage from the electric chassis vehicle controller, the A end of the electric chassis vehicle simulation device obtains positive electricity, the B end obtains negative electricity, and the power processing circuit obtains electricity to generate a stable voltage to power each module; the photoelectric coupler Q1 of the signal extraction circuit extracts the propulsion signal, and the chip U1 starts timing the propulsion signal. When the timing time is less than the short delay, the chip U1 controls the control output circuit to maintain the original state unchanged; when the timing time is greater than the short delay, the YDOUT of the chip U1 is set low, the relay J2 is closed, and the COM is disconnected from the HW and FW, simulating that the electric chassis vehicle is in motion; when the timing time is greater than the long delay, the Delay, HQOUT of chip U1 is set low, dual-position magnetic latching relay J1 is actuated, and YDOUT of chip U1 is set high at the same time, relay J2 is released, HW and COM are short-circuited, and a closing signal is output to the electric chassis vehicle controller. The electric chassis vehicle controller receives the closing signal, and stops the output voltages of A and B after a short delay. After a medium delay, the electric chassis vehicle controller outputs a reverse voltage of A negative and B positive for a short delay. The photoelectric coupler Q2 of the signal extraction circuit extracts the exit signal, and chip U1 starts timing the exit signal. When the timing time is less than the short delay, chip U1 controls the output circuit to maintain the original state. When the electric chassis vehicle simulation device receives the exit voltage sent by the electric chassis vehicle controller, the A terminal of the electric chassis vehicle simulation device obtains negative electricity, the B terminal obtains positive electricity, and the power processing circuit obtains electricity to generate a stable voltage to power each module; the optocoupler Q2 of the signal extraction circuit extracts the exit signal, and the chip U1 starts timing the exit signal. When the timing time is less than the short delay, the chip U1 controls the control output circuit to maintain the original state; when the timing time is greater than the short delay, the YDOUT of the chip U1 is set low, the relay J2 is closed, and the COM is disconnected from the HW and FW, simulating that the electric chassis vehicle is in motion; when the timing time is greater than the long delay, the Delay, FQOUT of chip U1 is set low, and the two-position magnetic holding relay J1 is activated. At the same time, YDOUT of chip U1 is set high, relay J2 is released, FW and COM are short-circuited, and the position-separation signal is output to the electric chassis vehicle controller. The electric chassis vehicle controller receives the position-separation signal, and the short delay time stops the A and B output voltages. After the medium delay time, the electric chassis vehicle controller outputs the reverse voltage A positive and B negative for the short delay time. The optocoupler Q1 of the signal extraction circuit extracts the propulsion signal, and chip U1 starts timing the propulsion signal. When the timing time is less than the short delay, chip U1 controls the control output circuit to maintain the original state.
3. The simulation method according to claim 2, characterized in that: When the micro switch S1 is in the short-circuit position 1 and 2, the chip U1 simulates the action sequence of the electric chassis vehicle; when the micro switch S1 is in the short-circuit position 1 and 3, the chip U1 simulates the action sequence of the electric ground knife; the long delay time of the electric ground knife is inconsistent with that of the electric chassis vehicle during movement.
4. The simulation method according to claim 2, characterized in that: If the timing of the chip U1 detection controller is correct, the LED L5 will be always on; if the timing is wrong, the LED L5 will flash.
Citation Information
Patent Citations
Embedded intelligent switch cabinet system
CN108183398A
Intelligent protection monitoring device
CN204046044U