CN108614133B - Wire breakage box and vehicle detection system - Google Patents
Wire breakage box and vehicle detection system Download PDFInfo
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- CN108614133B CN108614133B CN201810503658.2A CN201810503658A CN108614133B CN 108614133 B CN108614133 B CN 108614133B CN 201810503658 A CN201810503658 A CN 201810503658A CN 108614133 B CN108614133 B CN 108614133B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
Abstract
An embodiment of the present invention provides a wire break box and a vehicle detection system, wherein the wire break box includes: the device comprises a network card module, a first control switch, a second control switch, a first serial port and a second serial port; the network card module comprises a gateway and at least two CAN cards; when data information transmitted between the controller and the CAN bus is changed, a data information change signal is input through the first serial port, and the first control switch and the second control switch are controlled to be closed; when the data information on the CAN card is changed, the changed data information is input through the second serial port, the data information on the first CAN card is changed and then sent to the second CAN card and/or the data information on the second CAN card is changed and then sent to the first CAN card. According to the scheme of the invention, the data information between the controller and the CAN bus is changed, so that the reaction of the controller to different working conditions and the reaction of the whole vehicle to various data information sent by the controller are tested, and the vehicle CAN be comprehensively tested conveniently.
Description
Technical Field
The invention relates to the technical field of vehicle testing, in particular to a wire breaking box and a vehicle detection system.
Background
With the continuous development of the electric vehicle technology and the wide popularization of the electric vehicle, in the production process of the electric vehicle, in order to judge whether the function of the electric vehicle after production reaches the expected state, the real vehicle function of the electric vehicle needs to be tested. In the process of carrying out traditional real vehicle function test, need the driver to control the car and get into certain operating mode and test usually, can only test a operating mode once, and efficiency of software testing is low, and can't test real vehicle function under certain operating mode or test and need pay great cost.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is to provide a wire break box and a vehicle detection system, which are used for solving the problems that in the traditional real vehicle function test process, a driver is generally required to operate a vehicle to enter a certain working condition for testing, the test efficiency is low, and the real vehicle functions under all working conditions cannot be tested or the cost is high for testing.
In order to solve the above technical problem, an embodiment of the present invention provides a wire breaking box, including: the device comprises a network card module, a first control switch, a second control switch, a first serial port and a second serial port;
one end of the first serial port is connected with the upper computer, and the other end of the first serial port is connected with the control end of the first control switch and the control end of the second control switch;
the Network card module comprises a gateway and at least two CAN (Controller Area Network) cards, wherein the gateway is connected with the upper computer through a second serial port and is respectively connected with the first CAN card and the second CAN card;
the first control switch is respectively connected with a high-bit data line and a low-bit data line of the controller, and the first control switch is also connected with the high-bit data line and the low-bit data line of the first CAN card;
the second control switch is respectively connected with a high-bit data line and a low-bit data line of the CAN bus, the second control switch is also connected with the first control switch, and the second control switch is also respectively connected with the high-bit data line and the low-bit data line of the second CAN card;
when data information transmitted between the controller and the CAN bus is changed, a data information change signal is input through the first serial port, and the first control switch and the second control switch are controlled to be closed; when the data information on the CAN card is changed, the changed data information is input through the second serial port, the data information on the first CAN card is changed and then sent to the second CAN card and/or the data information on the second CAN card is changed and then sent to the first CAN card.
Specifically, as described above, in the wire breaking box, the first control switch is: a double pole double throw switch;
the first contact and the second contact of the first control switch are respectively connected with a high-bit data line and a low-bit data line of the controller, and the third contact and the fifth contact of the first control switch are respectively connected with the high-bit data line and the low-bit data line of the first CAN card; the fourth contact and the sixth contact of the first control switch are connected with the second control switch.
Specifically, as described above, the second control switch is: a double pole double throw switch;
a first contact and a second contact of the second control switch are respectively connected with a high-order data line and a low-order data line of the CAN bus, a third contact of the second control switch is connected with a fourth contact of the first control switch, a fifth contact of the second control switch is connected with a sixth contact of the first control switch, and the fourth contact and the sixth contact of the second control switch are also respectively connected with the high-order data line and the low-order data line of the second CAN card.
Preferably, as mentioned above, the network card module further comprises: a first resistor, a second resistor, a third control switch and a fourth control switch;
the first resistor is connected in series with the third control switch and then connected in parallel with a high-bit data line and a low-bit data line of the first CAN card, and the control end of the third control switch is connected with the upper computer through a first serial port;
the second resistor is connected in series with the fourth control switch and then connected in parallel with a high-bit data line and a low-bit data line of the second CAN card, and the control end of the fourth control switch is connected with the upper computer through the first serial port;
when the data information transmitted between the controller and the CAN bus is changed and the data line at the controller end is provided with a terminal resistor, a data information change signal is input through the first serial port to control the third control switch and the fourth control switch to be closed.
Specifically, the wire breaking box, the third control switch and the fourth control switch are all as follows: single pole single throw switch.
Furthermore, in the disconnection box, the first serial port is connected with the first control switch, the second control switch, the third control switch and the fourth control switch through hard wires;
the second serial port is connected with the gateway through a hard wire, the third control switch is connected with the first resistor, and the fourth control switch is connected with the second resistor through a hard wire.
Still another embodiment of the present invention also provides a vehicle detecting system including: the upper computer and the wire breaking box connected with the upper computer;
the disconnection box is respectively connected with a controller on the vehicle and a Controller Area Network (CAN) bus of the vehicle.
Specifically, the vehicle detection system as described above, the controller includes: a vehicle control unit and/or a motor controller.
Compared with the prior art, the wire break box and the vehicle detection system provided by the embodiment of the invention at least have the following beneficial effects:
in the embodiment of the invention, when the wire breaking box is used for vehicle test, the data information change signal is input through the first serial port to control the first control switch and the second control switch to be closed, and the data information on the first CAN card is changed by inputting the changed data information through the second serial port, sent to the second CAN card and/or sent to the first CAN card after the data information on the second CAN card is changed, and then the data information sent by the controller to the CAN bus and/or the data information sent by the CAN bus to the controller is changed, so that only by controlling and changing the content of the data information, the controller can receive or send data information which is suitable for various working conditions respectively, and then the reaction of the test controller to different working conditions and the reaction of the whole vehicle to various data information sent by the controller are convenient for carrying out comprehensive test on the vehicle. The problem that in the process of testing the functions of the traditional real vehicle, a driver is required to operate the vehicle to enter a certain working condition for testing, the testing efficiency is low, and the real vehicle functions under all the working conditions cannot be tested or the testing needs to pay large cost is solved.
Drawings
FIG. 1 is one of the principle schematic diagrams of the control circuit of the wire break box of the present invention;
FIG. 2 is a second schematic diagram of the control circuit of the wire-breaking box of the present invention;
FIG. 3 is a third schematic diagram of the control circuit of the wire break box of the present invention;
fig. 4 is a control flow diagram of the wire breaking box of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Referring to fig. 1 to 4, a preferred embodiment of the present invention provides a wire break box, including: the network card module 1, the first control switch 2 (shown as K1 in the figure), the second control switch 3 (shown as K2 in the figure), the first serial port 4 and the second serial port 5;
one end of the first serial port 4 is connected with the upper computer 6, and the other end of the first serial port is connected with the control end of the first control switch 2 and the control end of the second control switch 3;
the network card module 1 comprises a gateway 101 and at least two Controller Area Network (CAN) cards, wherein the gateway 101 is connected with an upper computer 6 through a second serial port 5 and is respectively connected with a first CAN card 102 and a second CAN card 103;
the first control switch 2 is respectively connected with a high-bit data line and a low-bit data line of the controller 7, and the first control switch 2 is also connected with the high-bit data line and the low-bit data line of the first CAN card 102;
the second control switch 3 is respectively connected with a high-order data line and a low-order data line of the CAN bus 8, the second control switch 3 is also connected with the first control switch 2, and the second control switch 3 is also respectively connected with the high-order data line and the low-order data line of the second CAN card 103;
when data information transmitted between the controller 7 and the CAN bus 8 is changed, a first data information change signal is input through the first serial port 4, and the first control switch 2 and the second control switch 3 are controlled to be closed; when the data information on the CAN card is changed, the changed data information is input through the second serial port 5, the data information on the first CAN card 102 is changed, and then the changed data information is sent to the second CAN card 103 and/or the data information on the second CAN card 103 is changed and then sent to the first CAN card 102.
In the embodiment of the invention, the first control switch 2 is respectively connected with a high-order data line and a low-order data line of the controller 7, and is also connected with the second control switch 3, the second control switch 3 is respectively connected with a high-order data line and a low-order data line of the CAN bus 8, when the first control switch 2 and the second control switch 3 are in default states, the controller 7 is directly connected with the CAN bus 8 through the first control switch 2 and the second control switch 3, and data transmission between the controller 7 and the CAN bus 8 is carried out; the first control switch 2 is also connected with a high-order data line and a low-order data line of the first CAN card 102, the second control switch 3 is also connected with a high-order data line and a low-order data line of the second CAN card 103, when the first control switch 2 and the second control switch 3 are in working states, the controller 7 is connected with the CAN bus 8 through the first control switch 2, the first CAN card 102, the gateway 101, the second CAN card 103 and the second control switch 3 in sequence, and data transmission between the controller 7 and the CAN bus 8 is carried out;
when the wire breaking box is used for vehicle testing, a first data information change signal is input through the first serial port 4, the first control switch 2 and the second control switch 3 are controlled to be closed, the first control switch 2 and the second control switch 3 are switched to be in a working state through default states, change data information is input through the second serial port 5, the data information on the first CAN card 102 is changed and then sent to the second CAN card 103 and/or the data information on the second CAN card 103 is changed and then sent to the first CAN card 102, the data information sent to the CAN bus 8 by the controller 7 and/or the data information sent to the controller 7 by the CAN bus 8 are changed, the controller 7 CAN receive or send the data information suitable for various working conditions respectively only by controlling and changing the content of the data information, and the reaction of the controller 7 to different working conditions and the reaction of various data information sent by the controller 7 are tested And the vehicle can be conveniently and comprehensively tested. The problem that in the process of testing the functions of the traditional real vehicle, a driver is required to operate the vehicle to enter a certain working condition for testing, the testing efficiency is low, and the real vehicle functions under all the working conditions cannot be tested or the testing needs to pay large cost is solved.
Specifically, as described above for the wire breaking box, the first control switch 2 is: a double pole double throw switch;
wherein, the first contact C1 and the second contact C2 of the first control switch 2 are respectively connected with the high data line and the low data line of the controller 7, and the third contact C3 and the fifth contact C5 of the first control switch 2 are respectively connected with the high data line and the low data line of the first CAN card 102; the fourth contact C4 and the sixth contact C6 of the first control switch 2 are connected to the second control switch 3.
In the embodiment of the present invention, the first control switch 2 is a double-pole double-throw switch, and the connection between the controller 7 and the second control switch 3 or the first CAN card 102 CAN be realized by changing the position of the double poles. Other forms of control switches are used for this purpose, such as: the double-pole triple-throw switch, the double-pole double-throw relay and the like belong to the protection scope of the invention.
Specifically, as described above for the wire breaking box, the second control switch 3 is: a double pole double throw switch;
the first contact C7 and the second contact C8 of the second control switch 3 are connected to a high-order data line and a low-order data line of the CAN bus 8, respectively, the third contact C9 of the second control switch 3 is connected to the fourth contact C4 of the first control switch 2, the fifth contact C11 of the second control switch 3 is connected to the sixth contact C6 of the first control switch 2, and the fourth contact C10 and the sixth contact C12 of the second control switch 3 are also connected to a high-order data line and a low-order data line of the second CAN card 103, respectively.
In the embodiment of the present invention, the second control switch 3 is a double-pole double-throw switch, and the connection between the CAN bus 8 and the first control switch 2 or the second CAN card 103 CAN be realized by changing the position of the double poles. Other forms of control switches are used for this purpose, such as: the double-pole triple-throw switch, the double-pole double-throw relay and the like belong to the protection scope of the invention.
Referring to fig. 1 to 4, preferably, as mentioned above, the network card module 1 further includes: a first resistor 104 (shown as R1), a second resistor 105 (shown as R2), a third control switch 106 (shown as S1), and a fourth control switch 107 (shown as S2);
after being connected in series with the third control switch 106, the first resistor 104 is connected in parallel with a high-bit data line and a low-bit data line of the first CAN card 102, and a control end of the third control switch 106 is connected with the upper computer 6 through the first serial port 4;
the second resistor 105 is connected in series with the fourth control switch 107 and then connected in parallel with the high-bit data line and the low-bit data line of the second CAN card 103, and the control end of the fourth control switch 107 is connected with the upper computer 6 through the first serial port 4;
when data information transmitted between the controller 7 and the CAN bus 8 is changed and a data line at the end of the controller 7 is provided with a terminal resistor, a second data information change signal is input through the first serial port 4, and the third control switch 106 and the fourth control switch 107 are controlled to be closed.
In the embodiment of the present invention, the network card module 1 further includes: a first resistor 104, a second resistor 105, a third control switch 106, and a fourth control switch 107; when data information transmitted between the controller 7 and the CAN bus 8 is changed and a data line at the end of the controller 7 is provided with a terminal resistor, a second data information change signal is input through the first serial port 4, and the third control switch 106 and the fourth control switch 107 are controlled to be closed, so that a first resistor 104 is connected in parallel between a high-bit data line and a low-bit data line of the first CAN card 102, a second resistor 105 is connected in parallel between a high-bit data line and a low-bit data line of the second CAN card 103, and resistance matching is performed, so that the first CAN card 102 and the first resistor 104 are equivalent to the CAN bus 8, and the second CAN card 103 and the second resistor 105 are equivalent to the controller 7; when data information transmitted between the controller 7 and the CAN bus 8 is changed and a data line at the end of the controller 7 does not have a termination resistor, the third control switch 106 and the fourth control switch 107 are controlled to be turned off, so that the first CAN card 102 corresponds to the CAN bus 8 and the second CAN card 103 corresponds to the controller 7; the modification of the data information is facilitated.
Specifically, as described above, the third control switch 106 and the fourth control switch 107 are all: single pole single throw switch.
In the embodiment of the present invention, the third control switch 106 and the fourth control switch 107 are both: the single pole single throw switch determines whether the first CAN card 102 is in parallel with the first resistor 104 and the second CAN card 103 is in parallel with the second resistor 105 by changing the open and closed states of the single pole single throw switch. Other forms of control switches are used for this purpose, such as: single-pole double-throw switches, single-pole single-throw relays and the like belong to the protection scope of the invention.
Further, as for the disconnection box described above, the first serial port 4 is connected to the first control switch 2, the second control switch 3, the third control switch 106 and the fourth control switch 107 through hard wires;
the second serial port 5 is connected with the gateway 101, the third control switch 106 is connected with the first resistor 104, and the fourth control switch 107 is connected with the second resistor 105 through hard wires.
In the embodiment of the invention, the connection among all the components in the wire breaking box is mostly connected by hard wires, and the service life of the wire breaking box is longer due to the simple manufacturing process and better mechanical property of the hard wires, thereby being beneficial to reducing the production cost and the maintenance cost.
Still another embodiment of the present invention also provides a vehicle detecting system including: the upper computer 6 and the wire breaking box connected with the upper computer 6;
the disconnection box is respectively connected with a controller 7 on the vehicle and a controller area network CAN bus 8 of the vehicle.
An embodiment of the present invention provides a vehicle detection system, including: the upper computer 6 and the wire breaking box connected with the upper computer 6; the breaker boxes are also connected to a controller 7 on the vehicle and to a CAN bus 8 of the vehicle, respectively. When the vehicle is tested, a tester judges whether data information is changed, whether a data line at the end of the controller 7 is provided with a terminal resistor and the position of the changed information, and inputs a control signal and the data information to the disconnection box through the upper computer 6, wherein the control signal comprises a first data information change signal and/or a second data information change signal, and controls data transmission between the controller 7 and the CAN bus 8 through controlling the disconnection box, so that the controller 7 CAN receive or send data information which is respectively suitable for various working conditions only through changing the content of the data information in the disconnection box, and then the controller 7 is tested to react to different working conditions and the whole vehicle to react to various data information sent by the controller 7, thereby being convenient for comprehensively testing the vehicle. The problem that in the process of testing the functions of the traditional real vehicle, a driver is required to operate the vehicle to enter a certain working condition for testing, the testing efficiency is low, and the real vehicle functions under all the working conditions cannot be tested or the testing needs to pay large cost is solved.
Specifically, as the vehicle detection system described above, the controller 7 includes: a vehicle control unit and/or a motor controller.
In the embodiment of the present invention, the controller 7 includes, but is not limited to, a vehicle controller and/or a motor controller, and is also suitable for controllers with other purposes on vehicles such as a vehicle body controller, and the like, and has universality, which is beneficial to performing comprehensive tests on the vehicle and improving test efficiency.
Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A wire break cassette, comprising: the device comprises a network card module (1), a first control switch (2), a second control switch (3), a first serial port (4) and a second serial port (5);
one end of the first serial port (4) is connected with an upper computer (6), and the other end of the first serial port is connected with the control end of the first control switch (2) and the control end of the second control switch (3);
the network card module (1) comprises a gateway (101) and at least two Controller Area Network (CAN) cards, wherein the gateway (101) is connected with the upper computer (6) through the second serial port (5) and is respectively connected with a first CAN card (102) and a second CAN card (103);
the first control switch (2) is respectively connected with a high-order data line and a low-order data line of the controller (7), and the first control switch (2) is also connected with the high-order data line and the low-order data line of the first CAN card (102);
the second control switch (3) is respectively connected with a high-bit data line and a low-bit data line of a CAN bus (8), the second control switch (3) is also connected with the first control switch (2), and the second control switch (3) is also respectively connected with the high-bit data line and the low-bit data line of the second CAN card (103);
when data information transmitted between the controller (7) and the CAN bus (8) is changed, a first data information change signal is input through the first serial port (4), and the first control switch (2) and the second control switch (3) are controlled to be closed; when data information on the CAN card is changed, the data information is changed by inputting through a second serial port (5), the data information on the first CAN card (102) is changed and then is sent to the second CAN card (103) and/or the data information on the second CAN card (103) is changed and then is sent to the first CAN card (102).
2. The wire break box according to claim 1, characterized in that the first control switch (2) is: a double pole double throw switch;
wherein a first contact (C1) and a second contact (C2) of the first control switch (2) are respectively connected with a high data line and a low data line of the controller (7), and a third contact (C3) and a fifth contact (C5) of the first control switch (2) are respectively connected with a high data line and a low data line of the first CAN card (102); the fourth contact (C4) and the sixth contact (C6) of the first control switch (2) are connected to the second control switch (3).
3. The wire breakage box according to claim 1 or 2, characterized in that the second control switch (3) is: a double pole double throw switch;
a first contact (C7) and a second contact (C8) of the second control switch (3) are respectively connected with a high-order data line and a low-order data line of a CAN bus (8), a third contact (C9) of the second control switch (3) is connected with a fourth contact (C4) of the first control switch (2), a fifth contact (C11) of the second control switch (3) is connected with a sixth contact (C6) of the first control switch (2), and a fourth contact (C10) and a sixth contact (C12) of the second control switch (3) are also respectively connected with a high-order data line and a low-order data line of the second CAN card (103).
4. The disconnect box of claim 1, wherein the network card module (1) further comprises: a first resistor (104), a second resistor (105), a third control switch (106), and a fourth control switch (107);
the first resistor (104) is connected in series with the third control switch (106) and then connected in parallel with a high-bit data line and a low-bit data line of the first CAN card (102), and the control end of the third control switch (106) is connected with the upper computer (6) through the first serial port (4);
the second resistor (105) is connected in series with the fourth control switch (107) and then connected in parallel with a high-bit data line and a low-bit data line of the second CAN card (103), and the control end of the fourth control switch (107) is connected with the upper computer (6) through the first serial port (4);
when data information transmitted between the controller (7) and the CAN bus (8) is changed and a data line at the controller (7) end is provided with a terminal resistor, a second data information change signal is input through the first serial port (4) to control the third control switch (106) and the fourth control switch (107) to be closed.
5. The wire break box according to claim 4, characterized in that the third control switch (106) and the fourth control switch (107) are each: single pole single throw switch.
6. The wire breaking box according to claim 4, characterized in that the first serial port (4) is connected with the first control switch (2), the second control switch (3), the third control switch (106) and the fourth control switch (107) through hard wires;
the second serial port (5) is connected with the gateway (101), the third control switch (106) is connected with the first resistor (104), and the fourth control switch (107) is connected with the second resistor (105) through hard wires.
7. A vehicle detection system, comprising: an upper computer (6) and a disconnection box according to any one of claims 1 to 6 connected with the upper computer (6);
the wire breaking box is respectively connected with a controller (7) on the vehicle and a controller area network CAN bus (8) of the vehicle.
8. The vehicle detection system according to claim 7, wherein the controller (7) includes: a vehicle control unit and/or a motor controller.
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| CN201810503658.2A CN108614133B (en) | 2018-05-23 | 2018-05-23 | Wire breakage box and vehicle detection system |
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| CN201810503658.2A CN108614133B (en) | 2018-05-23 | 2018-05-23 | Wire breakage box and vehicle detection system |
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