Standardized case used during testing of automobile chassis electric control system

Abstract

The utility model provides a standardized case used in testing of an automobile chassis electric control system. The standardized case comprises a case body, a wheel speed board card, a relay board card and a high-power relay, wherein the wheel speed board card, the relay board card and the high-power relay are arranged in the case body; a plurality of connectors are arranged on a front panel of the case body, the connectors are connected with corresponding channels of the relay board card, the wheel speed board card and the high-power relay through connecting wires, and one end, facing the outside of the case body, of each connector is used for connecting a sample piece to be tested and equipment required for testing; a plurality of interfaces are arranged on a rear panel of the case body; one end, facing the outside of the box body, of each interface on the rear panel is used for being connected with a corresponding interface of a cabinet to be assembled through a cable; a power supply port of the high-power relay is connected with a power interface of the rear panel; power supply ports of the wheel speed board card and the relay board card are in short circuit and are connected with a 12V power supply port of the rear panel; the ground terminals of the wheel speed board card and the relay board card are connected with the ground interface of the rear panel; and the high-power relay is connected with the relay board card.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive safety detection, and particularly relates to a standardized chassis for testing an automotive chassis electronic control system. Background Technique

[0002] The performance of the automotive chassis electronic control system is the key to vehicle safety and electrification. The performance test of the chassis electronic control system is essential in the development of automotive intelligence. When conducting simulation tests, it is necessary to provide a simulation environment for the sample on the vehicle for the sample, so as to achieve the corresponding performance test.

[0003] Before the test, it is necessary to purchase a cabinet, install the test boards into the cabinet, and then conduct the test. Since there are many lines for each board and the installation is complex, it takes a long time to install the boards into the cabinet, and the installation can only be carried out after the cabinet arrives.

[0004] Therefore, if the test can be carried out quickly after the cabinet arrives, it is a problem that those skilled in the art are concerned about. Content of the Utility Model

[0005] The purpose of the utility model is to provide a standardized chassis for testing an automotive chassis electronic control system, which can quickly conduct the test after the cabinet arrives.

[0006] To achieve the above purpose, the utility model provides a standardized chassis for testing an automotive chassis electronic control system, including:

[0007] A chassis box body and a wheel speed board, a relay board, and a high-power relay arranged inside the chassis box body;

[0008] A variety of connectors are provided on the front panel of the chassis box body. One end of each connector facing the inside of the box is connected to the corresponding channels of the relay board, the wheel speed board, and the high-power relay through a connecting wire, and the end of the connector facing the outside of the box is used to connect the sample to be tested and the equipment required for the test;

[0009] A CAN interface, a 12V power supply port, a power supply interface, and a ground interface are provided on the rear panel of the chassis box body; one end of the CAN interface, the 12V power supply port, the power supply interface, and the ground interface facing the outside of the box is used to be connected to the corresponding interfaces of the cabinet to be assembled through a cable;

[0010] The power supply port of the high-power relay is connected to the power supply interface on the rear panel;

[0011] The power supply ports of the wheel speed board card and the relay board card are short-circuited and connected to the 12V power supply port of the rear panel through a connecting wire; the grounding ends of the wheel speed board card and the relay board card are connected to the ground interface of the rear panel;

[0012] The high-power relay is connected to the relay board card through a connecting wire.

[0013] In an alternative solution, the types of the connectors include DB9 plugs.

[0014] In an alternative solution, the CAN channels of the wheel speed board card and the relay board card are connected to the DB9 plug on the front panel. The CAN channels between the wheel speed board card and the relay board card are short-circuited and connected to the CAN interface on the rear panel of the chassis box. The CAN interface on the rear panel of the chassis box is connected to the CAN tool of the cabinet through a cable.

[0015] In an alternative solution, the high-power relay, the wheel speed board card and the relay board card are fixed to the bottom of the chassis box by screws.

[0016] The beneficial effects of the present utility model are as follows:

[0017] The present utility model integrates the relay board card, the high-power relay and the wheel speed board card in the chassis in advance (that is, the relatively complex circuit connections are connected in advance). After the cabinet arrives, the chassis is installed in the cabinet, and then a simple circuit connection is made between the chassis and the cabinet. Description of the Drawings

[0018] By describing the exemplary embodiments of the present utility model in more detail in conjunction with the drawings, the above and other objects, features and advantages of the present utility model will become more obvious. In the exemplary embodiments of the present utility model, the same reference numerals generally represent the same components.

[0019] Figure 1 It is a schematic structural diagram of a standardized chassis used in the test of an automotive chassis electronic control system in an embodiment of the present utility model.

[0020] Description of the Reference Numerals in the Drawings

[0021] 1 - Chassis box; 2 - Front panel; 3 - Wheel speed board card; 4 - Relay board card; 5 - High-power relay; 6 - Connector; 7 - Rear panel. Detailed Embodiments

[0022] The following further elaborates on the present utility model in conjunction with the accompanying drawings and specific embodiments. According to the following description and drawings, the advantages and features of the present utility model will be clearer. However, it should be noted that the concept of the technical solution of the present utility model can be implemented in a variety of different forms and is not limited to the specific embodiments described herein. The accompanying drawings are all in a very simplified form and use non-precise scales, only for the purpose of conveniently and clearly assisting in explaining the purpose of the embodiments of the present utility model.

[0023] It should be understood that when an element or layer is referred to as "on", "adjacent to", "connected to", or "coupled to" another element or layer, it can be directly on, adjacent to, connected to, or coupled to the other element or layer, or there can be intervening elements or layers. In contrast, when an element is referred to as "directly on", "directly adjacent to", "directly connected to", or "directly coupled to" another element or layer, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer, or part from another element, component, region, layer, or part. Thus, under the teachings of the present utility model, the first element, component, region, layer, or part discussed below can be represented as the second element, component, region, layer, or part.

[0024] Spatial relationship terms such as "under", "below", "lower", "beneath", "above", "upper", etc. are used herein for convenience in describing the relationship of one element or feature shown in the figures to other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relationship terms are intended to also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, then an element or feature described as "under" or "beneath" or "below" other elements or features will be oriented "on" the other elements or features. Thus, the exemplary terms "under" and "below" can include both an upper and a lower orientation. The device can be otherwise oriented (rotated 90 degrees or other orientations) and the spatial descriptors used herein are to be interpreted accordingly.

[0025] The purpose of the terms used herein is only to describe specific embodiments and is not a limitation of the present utility model. As used herein, the singular forms "a", "an" and "the" are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprising" and / or "including", when used in this specification, identify the presence of the stated features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups. As used herein, the term "and / or" includes any and all combinations of the related listed items.

[0026] Embodiment 1

[0027] Referring to Figure 1 , this embodiment provides a standardized chassis used in the testing of an automotive chassis electronic control system, including:

[0028] A chassis box body 1 and a wheel speed board card 3, a relay board card 4 and a high-power relay 5 arranged inside the chassis box body 1;

[0029] A variety of connectors 6 are provided on the front panel 2 of the chassis box body 1. One end of each connector 6 facing the inside of the box is connected to the corresponding channels of the relay board card 4, the wheel speed board card 3, and the high-power relay 5 through connecting wires, and the end of the connector 6 facing the outside of the box is used to connect the sample to be tested and the equipment required for testing;

[0030] A CAN interface, a 12V power supply port, a power supply interface PVCC, and a ground interface GND are provided on the rear panel 7 of the chassis box body 1; One end of the CAN interface, the 12V power supply port, the power supply interface PVCC, and the ground interface GND facing the outside of the box is used to be connected to the corresponding interfaces of the cabinet to be assembled through cables;

[0031] The power supply port of the high-power relay 5 is connected to the power supply interface PVCC of the rear panel 7;

[0032] The power supply ports of the wheel speed board card 3 and the relay board card 4 are short-circuited and connected to the 12V power supply port of the rear panel 7 through connecting wires; The grounding ends of the wheel speed board card 3 and the relay board card 4 are connected to the ground interface GND of the rear panel;

[0033] The high-power relay 5 is connected to the relay board card 4 through a connecting wire.

[0034] Specifically, the chassis box body 1 is used to install circuit boards and high-power relays, as well as integrate the wiring harnesses of various parts. Various connectors are processed on the front panel for connecting the sample and the test system. The various interfaces on the rear panel are used to connect to the corresponding interfaces of the cabinet to be assembled, so as to integrate the chassis and the cabinet. An installation plate can be set on the chassis, and rails are installed inside the purchased cabinet. There are multiple mounting holes on the rails. After the positions are determined, the installation plate of the chassis is fixed to the rails of the cabinet with screws.

[0035] In this embodiment, the high-power relay 5, the wheel speed circuit board 3, and the relay circuit board 4 are fixed to the bottom of the chassis box body 1 with screws.

[0036] The high-power relay 5 is used to control the power-on of the sample. The wheel speed circuit board 3 is used to send analog wheel speed signals to the sample and can support the simulation of wheel speed signals of three types of wheel speed sensors: active non-intelligent wheel speed sensors, AK protocol intelligent wheel speed sensors, and PWM protocol intelligent wheel speed sensors. The relay circuit board controls the power-on and power-off of the sample through the high-power relay. The relay circuit board can also be used to realize the on-off switching and pull-up and pull-down switching of the switching signals and signal lights of the sample.

[0037] The 12V of the two circuit boards are short-circuited respectively, and the grounds are short-circuited respectively. The power supply of the circuit board is connected to the 12V power supply of the chassis through a connecting wire, and the ground of the circuit board is connected to the ground of the chassis. The power supply of the sample is connected to the high-power relay through a connecting wire at the connector on the panel. The high-power relay is connected to the power interface on the rear panel of the chassis. The opening and closing of the high-power relay are respectively connected to the corresponding channels of the relay circuit board through connecting wires. Other switching signals and signal light signals of the sample are connected to the corresponding channels of the relay circuit board through connecting wires at the connectors on the panel.

[0038] The CAN channels of the wheel speed circuit board and the relay circuit board are connected to the DB9 plug on the front panel. The CAN channels between the wheel speed circuit board and the relay circuit board are short-circuited and connected to the CAN interface on the rear panel of the chassis box body. The CAN interface on the rear panel is connected to the CAN tool of the cabinet through a cable. The CAN channel of the sample is connected to the corresponding DB9 plug on the rear panel through a connecting wire from the DB9 plug connected to the front panel. The DB9 plug on the rear panel is connected to the CAN tool of the cabinet.

[0039] In the present utility model, the relay circuit board, the high-power relay, and the wheel speed circuit board are integrated in the chassis in advance (that is, the relatively complex circuit connections are connected in advance). After the cabinet arrives, the chassis is installed in the cabinet, and then a simple circuit connection is made between the chassis and the cabinet.

[0040] The above description is only a description of the preferred embodiments of the present utility model, and does not limit the scope of the present utility model in any way. Any changes and modifications made by those of ordinary skill in the art of the present utility model based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A standardized chassis used in testing the electronic control system of an automobile chassis, characterized in that: include: A chassis body and a wheel speed board, a relay board and a high-power relay arranged inside the chassis body; A plurality of connectors are arranged on the front panel of the chassis body, and one end of each connector facing the inside of the chassis body is connected to the corresponding channels of the relay board, the wheel speed board, and the high-power relay through a connecting line, and the other end of the connector facing the outside of the chassis body is used to connect the sample to be tested and the equipment required for the test; The rear panel of the chassis body is provided with a CAN interface, a 12V power supply port, a power interface, and a ground interface; the ends of the CAN interface, the 12V power supply port, the power interface, and the ground interface facing the outside of the chassis are used to connect with the corresponding interfaces of the cabinet to be assembled through cables; The power supply port of the high-power relay is connected to the power interface of the rear panel; The power supply ports of the wheel speed card and the relay card are short-circuited and connected to the 12V power supply port of the rear panel through a connecting line; the grounding ends of the wheel speed card and the relay card are connected to the ground interface of the rear panel; The high-power relay is connected to the relay board via a connecting line.

2. The standardized chassis used in the test of the automobile chassis electronic control system as claimed in claim 1, characterized in that: The types of connectors include DB9 plugs.

3. The standardized chassis used in the test of the automobile chassis electronic control system as claimed in claim 2, characterized in that: The CAN channels of the wheel speed board and the relay board are connected to the DB9 plug of the front panel, the CAN channels between the wheel speed board and the relay board are short-circuited, and connected to the CAN interface of the rear panel of the chassis body, and the CAN interface of the rear panel is connected to the CAN tool of the cabinet through a cable.

4. The standardized chassis used for testing the automobile chassis electronic control system as claimed in claim 1, characterized in that: The high-power relay, the wheel speed board and the relay board are fixed to the bottom of the chassis body by screws.

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