Vehicle-mounted Ethernet data bypass control device and electric vehicle
By designing the on-board Ethernet data bypass control device, the problem of destroying the integrity of the original vehicle Ethernet bus when the data acquisition equipment is abnormal is solved, and the integrity and reliability of data transmission are achieved, avoiding the risk of disconnection of the vehicle backbone network.
Patent Information
- Application Number
- CN202421417490.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-20
AI Technical Summary
In the process of on-board Ethernet data acquisition, when abnormalities occur in the data acquisition equipment, it is easy to destroy the integrity of the Ethernet bus of the original vehicle, resulting in serious consequences of alarm and disconnection of the backbone network.
A vehicle-mounted Ethernet data bypass control device is designed, including an input power supply, a relay module, a bypass switch control module and multiple Ethernet interfaces. When the bypass switch control module is closed, the Ethernet interface of the electric vehicle end is connected to the Ethernet interface of the data acquisition device end to collect data; when an abnormality occurs in the data acquisition device, the bypass switch control module is disconnected and the Ethernet network of the original vehicle is restored.
Through the use of this device, the integrity and reliability of on-board Ethernet data transmission are ensured, the serious consequences of disconnection of the vehicle's backbone network is avoided, and the electrical performance degradation caused by excessive plugging and unplugging of the original vehicle's Ethernet lines is reduced.
Smart Images
Figure CN222691748U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electric vehicles, and in particular to the field of Ethernet data testing of electric vehicles. Background Art
[0002] With the continuous development of vehicle autonomous driving technology and vehicle networking technology, the original bus topology on the vehicle can no longer meet the needs of the vehicle. In the vehicle backbone network, the application of 100M automotive Ethernet is increasing. Different from the traditional CAN bus architecture, automotive Ethernet uses E2E point-to-point data transmission, which brings considerable challenges to the testing of the automotive Ethernet bus.
[0003] Generally, the vehicle Ethernet data is collected by disconnecting the original vehicle Ethernet connection and connecting the data acquisition device (datalogger) in series to the Ethernet to monitor and forward the data. This method will destroy the integrity of the original vehicle's Ethernet bus once the data acquisition device has abnormal operation, power failure, restart, update port configuration, etc., causing the vehicle to alarm. If the above problems occur during driving, the backbone network will be disconnected, resulting in serious consequences. Utility Model Content
[0004] In order to solve the above-mentioned problem of the vehicle Ethernet data acquisition backbone network being damaged due to abnormality of the data acquisition device, an embodiment of the utility model provides a vehicle Ethernet data bypass control device, comprising:
[0005] Input power;
[0006] A relay module connected to the input power supply;
[0007] A bypass switch control module connected to the relay module;
[0008] At least four Ethernet interfaces, including a first Ethernet interface, a second Ethernet interface, a third Ethernet interface and a fourth Ethernet interface; wherein,
[0009] The first Ethernet interface and the second Ethernet interface are arranged on the electric vehicle and connected to the relay module, and the third Ethernet interface and the fourth Ethernet interface are arranged on the data acquisition device end and connected to the relay module;
[0010] When the bypass switch control module is closed to collect data, the first Ethernet interface is connected to the third Ethernet interface through the relay module, and the second Ethernet interface is connected to the fourth Ethernet interface through the relay module. When the bypass switch control module is disconnected or the input power supply stops supplying power, the connection between the first Ethernet interface and the third Ethernet interface and the connection between the second Ethernet interface and the fourth Ethernet interface are disconnected.
[0011] In one embodiment of the above-mentioned vehicle-mounted Ethernet data bypass control device, the relay module further includes:
[0012] a first input terminal and a second input terminal;
[0013] a first normally closed terminal and a second normally closed terminal;
[0014] The first normally open end and the second normally open end;
[0015] A coil having a first end and a second end; wherein
[0016] The first Ethernet interface and the second Ethernet interface are connected to the first input end and the second input end respectively, the third Ethernet interface and the fourth Ethernet interface are connected to the first normally open end and the second normally open end respectively, the first end of the coil is connected to the input power supply, and the second end of the coil is connected to the ground;
[0017] When the bypass switch control module is closed to collect data, under the action of the coil, the first input end and the second input end are connected to the first normally open end and the second normally open end respectively; when the bypass switch control module is disconnected or the input power supply stops supplying power, under the action of the coil, the first input end and the second input end are connected to the first normally closed end and the second normally closed end respectively.
[0018] In one embodiment of the above-mentioned vehicle-mounted Ethernet data bypass control device, when the bypass switch control module is closed and an abnormality occurs in the data acquisition device, the data acquisition device automatically controls the input power supply to stop supplying power.
[0019] In one embodiment of the above-mentioned vehicle-mounted Ethernet data bypass control device, it also includes a power conversion module connected to the input power supply, and the power conversion module converts the voltage of the input power supply and then supplies power to the relay module.
[0020] In one embodiment of the above-mentioned vehicle-mounted Ethernet data bypass control device, it also includes a filter circuit connected to the bypass switch control module, which is used to filter the switch signal of the bypass switch control module.
[0021] In one embodiment of the above-mentioned vehicle-mounted Ethernet data bypass control device, a bypass status indication module is also included. The bypass status indication module is connected to the bypass switch control module and is used to indicate whether the Ethernet data bypass function is turned on.
[0022] In one embodiment of the above-mentioned vehicle-mounted Ethernet data bypass control device, the bypass status indication module is connected to the first Ethernet interface or the third Ethernet interface to indicate whether the Ethernet data bypass corresponding to the first Ethernet interface is turned on; and / or the bypass status indication module is connected to the second Ethernet interface or the fourth Ethernet interface to indicate whether the Ethernet data bypass function corresponding to the second Ethernet interface is turned on.
[0023] In one embodiment of the above-mentioned in-vehicle Ethernet data bypass control device, the first normally closed end and the second normally closed end of the relay module are connected.
[0024] In one embodiment of the above-mentioned vehicle-mounted Ethernet data bypass control device, the relay module is a double-pole double-throw relay.
[0025] The utility model also discloses an electric vehicle, comprising a chassis, a body connected to the chassis, a vehicle drive unit and a vehicle control unit, wherein the vehicle control unit comprises the vehicle-mounted Ethernet data bypass control device as described in any one of the above items.
[0026] The vehicle-mounted Ethernet data bypass control device and the electric vehicle disclosed by the utility model are connected with a plurality of Ethernet interfaces through a relay module. When the bypass switch control module is closed, the Ethernet interface at the electric vehicle end is connected with the Ethernet interface at the data acquisition device end to collect data. When an abnormality occurs in the data acquisition device, the Ethernet interface at the electric vehicle end and the Ethernet interface at the data acquisition device end are disconnected under the action of the relay module, and the Ethernet network connection of the original vehicle is restored, thereby ensuring the integrity and reliability of data transmission and avoiding the serious consequence of the disconnection of the vehicle backbone network.
[0027] At the same time, the signal generated by the bypass switch control module is filtered through the filter circuit to reduce the impact on the bus data and make the bus data accurate.
[0028] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a block diagram of a vehicle-mounted Ethernet data bypass control device in one embodiment of the utility model.
[0030] Figure 2 It is a connection diagram of a relay module in one embodiment of the utility model.
[0031] Figure 3 It is a block diagram of a vehicle-mounted Ethernet data bypass control device in another embodiment of the utility model.
[0032] Figure 4 It is a block diagram of a vehicle-mounted Ethernet data bypass control device in another embodiment of the utility model.
[0033] Figure 5 It is a block diagram of a vehicle-mounted Ethernet data bypass control device in another embodiment of the utility model.
[0034] Figure 6 It is a block diagram of a vehicle-mounted Ethernet data bypass control device in another embodiment of the utility model.
[0035] Figure 7 It is a block diagram of a vehicle-mounted Ethernet data bypass control device in another embodiment of the utility model.
[0036] Figure 8 It is a schematic diagram of a power conversion circuit in one embodiment of the utility model.
[0037] Fig. 9 It is a block diagram of an electric vehicle in one embodiment of the utility model.
[0038] Wherein, the reference numerals are:
[0039] 1: Electric vehicle end
[0040] 2: Data collection device side
[0041] eth1: the first Ethernet interface
[0042] eth2: Second Ethernet interface
[0043] eth3: the third Ethernet interface
[0044] eth4: the fourth Ethernet interface
[0045] 3: Relay module
[0046] in1: first input terminal
[0047] in2: second input terminal
[0048] nc1: first normally closed terminal
[0049] nc2: second normally closed terminal
[0050] no1: first normal start
[0051] no2: second normal start
[0052] Coil: coil
[0053] 4: Input power
[0054] 5: Bypass switch control module
[0055] 6: Power conversion module
[0056] 7: Filter circuit
[0057] 8a, 8b, 8c: Bypass status indicator module
[0058] 10: In-vehicle Ethernet data bypass control device
[0059] 100: Electric vehicles
[0060] 110: Chassis
[0061] 120: Body
[0062] 130: Vehicle drive unit
[0063] 140: Vehicle control unit DETAILED DESCRIPTION
[0064] The following specific embodiments and accompanying drawings are used to illustrate the implementation methods disclosed in the utility model. Those skilled in the art can understand the advantages and effects of the utility model from the contents disclosed in this specification. However, the contents disclosed below are not intended to limit the scope of protection of the utility model. Without departing from the principle of the spirit of the concept of the utility model, those skilled in the art can implement the utility model with other different embodiments based on different viewpoints and applications.
[0065] For the sake of clarity, the drawings of the present invention are simplified schematic diagrams to illustrate the basic structure of the present invention. Therefore, the structures shown in the drawings of the present invention are not drawn according to the shape and size ratio of the actual implementation. For example, the size of a specific component is enlarged for the convenience of description.
[0066] In addition, it should be understood that when a component such as a layer, film, region, or substrate is referred to as being "on" or "connected to" another component, it can be directly on or connected to the other component, or intermediate components may also exist. In contrast, when a component is referred to as being "directly on" or "directly connected to" another component, there are no intermediate components. As used herein, "connected" can refer to physical and / or electrical connections. Furthermore, "electrically connected" or "coupled" can mean the presence of other components between two components.
[0067] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as understood by those with ordinary knowledge in the field to which the utility model belongs. It will be further understood that those terms such as those defined in commonly used dictionaries should be interpreted as having the same meaning as they have in the context of the relevant technology and the utility model, and will not be interpreted as idealized or overly formal meanings unless explicitly defined in this article.
[0068] In addition, it should be understood that although the terms "first", "second", "third", etc. may be used herein to describe various components, parts, regions, layers and / or parts, these components, parts, regions, and / or parts should not be limited by these terms. These terms are only used to distinguish one component, part, region, layer or part from another component, part, region, layer or part. Therefore, the "first component", "component", "region", "layer" or "part" discussed below may be referred to as a second component, part, region, layer or part without departing from the teachings of this article.
[0069] It should be understood that references in the specification to "one embodiment", "an embodiment", "an example embodiment", etc., mean that the embodiment being described may include certain features, structures, or characteristics, but does not necessarily include these certain features, structures, or characteristics. In addition, such expressions do not refer to the same embodiment. Further, when a certain feature, structure, or characteristic is described in conjunction with an embodiment, it is indicated that it is within the knowledge of those skilled in the art to combine such feature, structure, or characteristic into other embodiments, whether or not it is explicitly described.
[0070] Certain words are used in the specification and subsequent claims to refer to specific modules, components or parts. It should be understood by ordinary technicians in this field that technical users or manufacturers can refer to the same module, component or part with different nouns or terms. This specification and subsequent claims do not use the difference in name as a way to distinguish modules, components or parts, but use the difference in function of modules, components or parts as the criterion for distinction. "Including" and "including" mentioned throughout the specification and subsequent claims are open-ended terms and should be interpreted as "including but not limited to". In addition, the word "connect" here includes any direct and indirect electrical connection means. Indirect electrical connection means include connection through other devices.
[0071] Furthermore, in the following specification and claims, reference will be made to a number of terms which shall be defined as having the following meanings. The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. "Optional" or "optionally" means that the subsequently described event or circumstance may or may not occur, and that the description includes instances where the event occurs and instances where it does not.
[0072] The structural principle and working principle of the utility model are described in detail below in conjunction with the accompanying drawings:
[0073] like Figure 1 As shown, the utility model provides a vehicle-mounted Ethernet data bypass control device 10, comprising:
[0074] Input power 4;
[0075] A relay module 3 connected to the input power supply 4;
[0076] A bypass switch control module 5 connected to the relay module 3;
[0077] At least four Ethernet interfaces, including a first Ethernet interface eth1, a second Ethernet interface eth2, a third Ethernet interface eth3 and a fourth Ethernet interface eth4; wherein,
[0078] The first Ethernet interface eth1 and the second Ethernet interface eth2 are arranged at the electric vehicle end 1 and connected to the relay module 3, and the second Ethernet interface eth3 and the fourth Ethernet interface eth4 are arranged at the data acquisition device end 2 and connected to the relay module 3;
[0079] When the bypass switch control module 5 is closed to collect data (i.e., the on-board Ethernet data bypass control device is in the data collection mode), the first Ethernet interface eth1 is connected to the second Ethernet interface eth3 through the relay module 3, and the second Ethernet interface eth2 is connected to the fourth Ethernet interface eth4 through the relay module 3. When the bypass switch control module 5 is disconnected or the input power supply 4 stops supplying power (i.e., the on-board Ethernet data bypass control device is in the data collection mode), the connection between the first Ethernet interface eth1 and the second Ethernet interface eth3 and the connection between the second Ethernet interface eth2 and the fourth Ethernet interface eth4 are disconnected.
[0080] like Figure 2 As shown, in one embodiment of the vehicle-mounted Ethernet data bypass control device 10, the relay module 3 further includes:
[0081] A first input terminal in1 and a second input terminal in2;
[0082] A first normally closed terminal nc1 and a second normally closed terminal nc2;
[0083] The first normally open end no1 and the second normally open end no2;
[0084] The coil has a first end and a second end; wherein
[0085] The first Ethernet interface eth1 and the second Ethernet interface eth2 are connected to the first input terminal in1 and the second input terminal in2 respectively, the second Ethernet interface eth3 and the fourth Ethernet interface eth4 are connected to the first normally open terminal no1 and the second normally open terminal no2 respectively, the first end of the coil coil is connected to the input power supply 4, and the second end of the coil coil is connected to the ground;
[0086] When the bypass switch control module 5 is closed to collect data (that is, the on-board Ethernet data bypass control device is in the data collection mode), under the action of the coil coil, the first input terminal in1 and the second input terminal in2 are respectively connected to the first normally open terminal no1 and the second normally open terminal no2; when the bypass switch control module 5 is disconnected or the input power supply 4 stops supplying power (that is, the on-board Ethernet data bypass control device is in the data collection mode), under the action of the coil coil, the first input terminal in1 and the second input terminal in2 are respectively connected to the first normally closed terminal nc1 and the second normally closed terminal nc2.
[0087] In an embodiment of the vehicle-mounted Ethernet data bypass control device 10 , when the bypass switch control module 5 is closed and an abnormality occurs in the data acquisition device, the data acquisition device automatically controls the input power supply 4 to stop supplying power.
[0088] When the data acquisition device controls the input power supply 4 to stop supplying power, it can be controlled by direct electrical connection or wirelessly. In addition, the input power supply 4 can be located inside or outside the data acquisition device. The utility model does not limit the position of the input power supply 4.
[0089] like Figure 3 As shown, in one embodiment of the vehicle-mounted Ethernet data bypass control device 10, it also includes a power conversion module 6 connected to the input power supply 4, and the power conversion module 6 converts the voltage of the input power supply 4 and then supplies power to the relay module 3.
[0090] Specifically, the input power 4 received by the power conversion module 6 may be a 12V power supply or a universal USB input power 4 .
[0091] like Figure 8FIG. 1 is a schematic diagram of a power conversion circuit in an embodiment of the present invention. The power conversion circuit includes a KIA78xx series integrated voltage regulator and peripheral resistors, PNP transistors and capacitors. in Converts to a stable V out The output supplies power to the relay module 3, and also has a function of preventing the power polarity from being reversed. It should be noted that the power conversion circuit is a prior art, and its working principle is not described in detail. The above power conversion circuit is only an embodiment, and other types of power conversion circuits can also be used. The utility model is not limited to this.
[0092] like Figure 4 As shown, in one embodiment of the vehicle-mounted Ethernet data bypass control device 10 , a filter circuit 7 connected to the bypass switch control module 5 is further included, which is used to de-jitter and filter the switch signal of the bypass switch control module 5 .
[0093] Specifically, in one embodiment, the filter circuit 7 may be a capacitor connected in parallel with the bypass switch control module 5 , or may be other forms of filter circuits 7 , but the present invention is not limited thereto.
[0094] like Figure 5 As shown, in one embodiment of the vehicle-mounted Ethernet data bypass control device 10, a bypass state indication module 8a is further included. The bypass state indication module 8a is connected to the bypass switch control module 5 and is used to indicate whether the Ethernet data bypass function is turned on.
[0095] Specifically, in one embodiment, the bypass status indication module 8a may include an LED indicator light and a resistor, or may be other types of circuits that play a role of status indication, but the present invention is not limited thereto.
[0096] like Figure 6 As shown, in one embodiment, the bypass status indication module 8b is connected to the first Ethernet interface eth1 to indicate whether the Ethernet data bypass function corresponding to the first Ethernet interface eth1 is turned on; and the bypass status indication module 8c is connected to the second Ethernet interface eth2 to indicate whether the Ethernet data bypass function corresponding to the second Ethernet interface eth2 is turned on.
[0097] like Figure 7 As shown, in one embodiment, the bypass status indication module 8b is connected to the third Ethernet interface eth3 to indicate whether the Ethernet data bypass function corresponding to the first Ethernet interface eth1 is turned on; and the bypass status indication module 8c is connected to the fourth Ethernet interface eth4 to indicate whether the Ethernet data bypass function corresponding to the second Ethernet interface eth2 is turned on.
[0098] Specifically, the bypass status indication module can be set on the main line and connected to the bypass switch control module 5, or it can be set on the branches of the two Ethernet interfaces at the same time to indicate whether the bypass function is enabled for the entire or each branch. The position of the bypass status indication module can be combined and set as needed.
[0099] In an embodiment of the vehicle-mounted Ethernet data bypass control device 10 , the first normally closed end nc1 of the relay module 3 is connected to the second normally closed end nc2 .
[0100] In an embodiment of the vehicle-mounted Ethernet data bypass control device 10 , the relay module 3 is a double-pole double-throw (DPDT) relay, and may also be other types of relay switches.
[0101] like Fig. 9 As shown, the utility model also discloses an electric vehicle 100, including a chassis 110, a body 120 connected to the chassis 110, a vehicle drive unit 130 and a vehicle control unit 140, and the vehicle control unit 140 includes an in-vehicle Ethernet data bypass control device 10 as described in any one of the above items.
[0102] The vehicle-mounted Ethernet data bypass control device 10 and the electric vehicle 100 disclosed by the utility model are connected with multiple Ethernet interfaces through the relay module 3. When the bypass switch control module 5 is closed, the Ethernet interface of the electric vehicle end 1 is connected with the Ethernet interface of the data acquisition device end 2 to collect data. When an abnormality occurs in the data acquisition device, the Ethernet interface of the electric vehicle end 1 and the Ethernet interface of the data acquisition device end 2 are disconnected under the action of the relay module 3, and the Ethernet network connection of the original vehicle is restored, thereby ensuring the integrity and reliability of data transmission, reducing the electrical performance degradation caused by excessive plugging and unplugging of the original vehicle Ethernet line, and avoiding the serious consequence of disconnection of the vehicle backbone network.
[0103] At the same time, the signal generated by the bypass switch control module 5 is filtered by the filter circuit 7 to reduce the impact on the bus data, so that the bus data is accurate.
[0104] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.
Claims
1. A vehicle-mounted Ethernet data bypass control device, characterized in that: include: Input power; A relay module connected to the input power supply; A bypass switch control module is connected to the relay module; wherein the first Ethernet interface and the second Ethernet interface provided on the electric vehicle, and the third Ethernet interface and the fourth Ethernet interface provided on the data acquisition device are all connected to the relay module; When the bypass switch control module is closed, the vehicle-mounted Ethernet data bypass control device is in a data acquisition mode, the first Ethernet interface is connected to the third Ethernet interface through the relay module, and the second Ethernet interface is connected to the fourth Ethernet interface through the relay module; when the bypass switch control module is disconnected, the vehicle-mounted Ethernet data bypass control device is in the original vehicle Ethernet mode or when the input power supply stops supplying power and the vehicle-mounted Ethernet data bypass control device is in a data acquisition mode, the relay module disconnects the first Ethernet interface from the third Ethernet interface and the second Ethernet interface from the fourth Ethernet interface.
2. The vehicle-mounted Ethernet data bypass control device according to claim 1, characterized in that: The relay module further comprises: a first input terminal and a second input terminal; a first normally closed terminal and a second normally closed terminal; The first normally open end and the second normally open end; A coil having a first end and a second end; wherein The first Ethernet interface and the second Ethernet interface are connected to the first input end and the second input end respectively, the third Ethernet interface and the fourth Ethernet interface are connected to the first normally open end and the second normally open end respectively, the first end of the coil is connected to the input power supply, and the second end of the coil is connected to the ground; When the vehicle-mounted Ethernet data bypass control device is in the data acquisition mode, under the action of the coil, the first input end and the second input end are respectively connected to the first normally open end and the second normally open end; when the vehicle-mounted Ethernet data bypass control device is in the original vehicle Ethernet mode or when the input power supply stops supplying power and the vehicle-mounted Ethernet data bypass control device is in the data acquisition mode, under the action of the coil, the first input end and the second input end are respectively connected to the first normally closed end and the second normally closed end.
3. The vehicle-mounted Ethernet data bypass control device according to claim 1 or 2, characterized in that: When the bypass switch control module is closed and an abnormality occurs in the data acquisition device, the data acquisition device automatically controls the input power supply to stop supplying power.
4. The vehicle-mounted Ethernet data bypass control device according to claim 1, characterized in that: It also includes a power conversion module connected to the input power supply, and the power conversion module converts the voltage of the input power supply and then supplies power to the relay module.
5. The vehicle-mounted Ethernet data bypass control device according to claim 1, characterized in that: It also includes a filter circuit connected to the bypass switch control module, which is used to filter the switch signal of the bypass switch control module.
6. The vehicle-mounted Ethernet data bypass control device according to claim 5, characterized in that: It also includes a bypass status indication module, which is connected to the bypass switch control module and is used to indicate whether the Ethernet data bypass function is turned on.
7. The vehicle-mounted Ethernet data bypass control device according to claim 6, characterized in that: The bypass status indication module is connected to the first Ethernet interface or the third Ethernet interface to indicate whether the Ethernet data bypass corresponding to the first Ethernet interface is turned on; and / or the bypass status indication module is connected to the second Ethernet interface or the fourth Ethernet interface to indicate whether the Ethernet data bypass function corresponding to the second Ethernet interface is turned on.
8. The vehicle-mounted Ethernet data bypass control device according to claim 2, characterized in that: The first normally closed end of the relay module is connected to the second normally closed end.
9. The vehicle-mounted Ethernet data bypass control device according to claim 1, characterized in that: The relay module is a double-pole double-throw relay.
10. An electric vehicle, comprising a chassis, a vehicle body connected to the chassis, a vehicle drive unit and a vehicle control unit, characterized in that: The vehicle control unit includes the in-vehicle Ethernet data bypass control device according to any one of claims 1 to 9.