CN211741920U - Analog signal interference device for mass production vehicle evaluation experiment - Google Patents

Abstract

The utility model discloses a volume production car aassessment experiment analog signal interference unit, the device include the electronic box, be provided with first interface and second interface on the electronic box, be provided with manual simulation subassembly on the electronic box, manual simulation subassembly's input with first interface connection, manual simulation subassembly's output with second interface connection, manual simulation subassembly includes from reset button switch, from reset button switch setting in the electronic box surface. The utility model discloses device embodiment is through setting up from reset button switch, as long as rely on and frequently carry out the button break-make fast and can realize analog signal interference recurrence, the simple operation, equipment cost is cheap.

Description

Analog signal interference device for mass production vehicle evaluation experiment

Technical Field

The utility model relates to a volume production car aassessment experiment fault code recurrence technique especially relates to a volume production car aassessment experiment analog signal interference unit.

Background

Mass production vehicle PVE experiments need simulation reproduction of relevant fault codes of emission control system information monitored by an OBD system (OBD is an abbreviation of English On-Board Diagnostics, and Chinese is translated into a vehicle-mounted automatic diagnosis system), and therefore, corresponding equipment is needed to realize the simulation reproduction. The existing device is mainly realized by combining a four-quadrant signal amplifier and a signal generator, needs strong professional of operators, and has a single operation mode.

Disclosure of Invention

An object of the utility model is to provide an easily volume production car aassessment experiment analog signal interference unit who operates.

The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.

According to the utility model discloses an aspect provides a volume production car aassessment experiment analog signal interference unit, including the electronic box, be provided with first interface and second interface on the electronic box, be provided with manual simulation subassembly on the electronic box, manual simulation subassembly's input with first interface connection, manual simulation subassembly's output with second interface connection, manual simulation subassembly includes from reset button switch, from reset button switch setting in the electronic box surface.

In one embodiment, the self-reset button switch of the device is a small circular normally-closed self-reset no-latch-point button switch.

In one embodiment, the device further comprises a frequency display assembly, wherein the frequency display assembly comprises a fault code input unit, a controller, a frequency display and a power supply, the fault code input unit and the frequency display are in signal connection with the controller, the fault code input unit, the frequency display and the controller are electrically connected with the power supply, and the fault code input unit and the frequency display are arranged on the surface of the electric box.

In one embodiment, the device further comprises a manual simulation reminder, and the manual simulation reminder is connected with the controller.

In one embodiment, the manual simulated reminder of the device comprises a buzzer and/or an indicator light.

In one embodiment, the device further comprises an automatic simulation component, the automatic simulation component comprises a signal generator and a signal amplifier, the signal generator and the signal amplifier are connected in series, the input end of the automatic simulation component is connected with the first interface, the output end of the automatic simulation component is connected with the second interface, the first interface is connected with the manual simulation component and the automatic simulation component through a selection switch, and the selection switch is arranged on the surface of the electric box.

The utility model discloses device embodiment's beneficial effect is: through setting up from reset button switch, as long as rely on frequently to carry out the button break-make fast and can realize analog signal interference recurrence, the simple operation, equipment cost is cheap.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

The above features and advantages of the present invention will be better understood upon reading the detailed description of embodiments of the present disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components having similar relative characteristics or features may have the same or similar reference numerals.

Fig. 1 is a schematic perspective view of an embodiment of the device of the present invention;

fig. 2 is a schematic diagram of the connection of the frequency display module according to the embodiment of the present invention;

FIG. 3 is a schematic diagram of the connection relationship between the manual simulation module and the automatic simulation module according to the embodiment of the present invention;

wherein: 1-an electric box; 2-a first interface; 3-a second interface; 4-self-reset button switch; 5-fault code input device; 6-frequency display; 7-a controller; 8-a power supply; 9-a buzzer; 10-an indicator light; 11-a signal generator; 12-a signal amplifier; 13-selection switch.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It is noted that the aspects described below in connection with the figures and the specific embodiments are only exemplary and should not be understood as imposing any limitation on the scope of the present invention.

As shown in fig. 1-3, the embodiment of the utility model discloses a volume production car aassessment experiment analog signal interference unit, including electronic box 1, be provided with first interface 2 and second interface 3 on the electronic box, be provided with manual simulation subassembly on the electronic box 1, manual simulation subassembly's input and first interface 2 are connected, manual simulation subassembly's output and second interface 3 are connected, manual simulation subassembly includes from reset button switch 4, sets up in electronic box 1 surface from reset button switch 4. Through setting up from reset button switch 4, as long as carry out the button break-make fast frequently and can realize analog signal interference recurrence, the simple operation, equipment cost is cheap.

The self-reset button switch can adopt a DS-212 small circular normally-closed self-reset non-locking point-action button switch. The first interface 2 may be a red banana socket and the second interface 3 may be a black banana socket to facilitate operator differentiation. The two banana sockets are respectively arranged in 2 round holes with the diameter of 8mm on the upper panel of the electric box 1.

In order to prompt the operator of the frequency for pressing the button switch, in a possible embodiment, the device further includes a frequency display component, the frequency display component includes a fault code input unit 5, a controller 7, a frequency display unit 6 and a power supply 8, the fault code input unit 5 and the frequency display unit 6 are both in signal connection with the controller 7, the fault code input unit 5, the frequency display unit 6 and the controller 7 are all electrically connected with the power supply 8, the fault code input unit 5 and the frequency display unit 6 are disposed on the surface of the electronic box 1, the fault code input unit 5, the controller 7 and the frequency display unit 6 are all implemented by using existing devices, and details are not repeated here, and the controller 7 needs to store a corresponding fault code and a corresponding pressing frequency in advance. During operation, a fault code in the OBD is input through the fault code input device 5, and the recommended pressing frequency is displayed on the frequency display 6 by the controller 7 according to the correspondence between the fault code stored therein and the frequency, so that the operator can roughly estimate the speed at which pressing is required according to the frequency.

Since the frequency display 6 is not yet intuitive, in a possible embodiment, the device further comprises a manual analog reminder, the manual analog reminder is connected with the controller 7, and the controller 7 controls the manual analog reminder to operate according to the frequency. The manual analogue reminder may comprise a buzzer 9 and an indicator light 10. During the operation, the operator presses the button according to the sound of the buzzer 9 and the flashing frequency of the light of the indicator lamp 10.

The manual operation is simple and easy to understand, professional knowledge is not needed, and a relatively accurate analog signal is still needed under partial scenes. Therefore, in a possible embodiment, the device further comprises an automatic simulation assembly, which comprises a signal generator 11 and a signal amplifier 12, the signal generator 11 and the signal amplifier 12 are connected in series, the input end of the automatic simulation assembly is connected with the first interface 2, the output end of the automatic simulation assembly is connected with the second interface 3, the first interface 2 is connected with the manual simulation assembly and the automatic simulation assembly by means of a selection switch 13, and the selection switch 13 is arranged on the surface of the electrical box 1. The operator can switch between the manual mode and the automatic mode by means of the selector switch 13, and when the automatic mode is selected, the operator can set the frequency of the interference signal by means of the signal generator 11.

The embodiment of the utility model provides an operating method as follows:

s101, finding out a pin corresponding to an ECU (Electronic Control Unit, namely a vehicle-mounted computer) according to a fault code of the OBD, connecting a wiring harness end of the pin with a first interface, and connecting the pin with the ECU end and a second interface;

and S102, starting the vehicle, and quickly and frequently pressing and releasing the self-reset button switch until the corresponding fault code is reported in the OBD.

The signal interference can be reproduced through wiring operation and pressing of the button switch, and an operator does not need professional training and has simple steps.

In a possible embodiment, S102 further comprises: the fault code of the OBD is input into the fault code input device, the reference frequency of manual simulation is read on the frequency display, and the self-reset button switch is released by pressing down according to the reference frequency until the corresponding fault code is reported in the OBD.

In a possible embodiment, S102 further comprises: and pressing down according to the signal frequency of the manual simulation reminder to release the self-resetting button switch until the OBD is checked and seen to report a corresponding fault code.

In a possible embodiment, before S102, further comprising: selecting a manual simulation mode or an automatic simulation mode through a selection switch, and entering S102 when the manual simulation mode is selected; when the automatic simulation mode is selected, the signal generator sets the frequency of the analog signal to start the vehicle, the signal generator generates the analog signal, and the corresponding fault code is reported in the OBD.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The above description is only a preferred example of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the scope of the present application.

Claims (6)

1. The utility model provides a volume production car aassessment experiment analog signal interference device which characterized in that: the electric box is provided with a first interface and a second interface, a manual simulation assembly is arranged on the electric box, the input end of the manual simulation assembly is connected with the first interface, the output end of the manual simulation assembly is connected with the second interface, the manual simulation assembly comprises a self-reset button switch, and the self-reset button switch is arranged on the surface of the electric box.

2. The mass production vehicle evaluation experiment simulation signal interference device of claim 1, wherein: the self-reset button switch is a small circular normally-closed self-reset non-locking point-action button switch.

3. The mass production vehicle evaluation experiment simulation signal interference device of claim 1, wherein: still include the frequency display module, the frequency display module includes fault code input unit, controller, frequency display and power, fault code input unit and frequency display all with controller signal connection, fault code input unit, frequency display and controller all with the power electricity is connected, fault code input unit and frequency display set up in the electronic box surface.

4. The mass production vehicle evaluation experiment simulation signal interference device of claim 3, wherein: the automatic reminding device is characterized by further comprising a manual simulation reminder, and the manual simulation reminder is connected with the controller.

5. The mass production vehicle evaluation experiment simulation signal interference device of claim 4, wherein: the manual simulation reminder comprises a buzzer and/or an indicator light.

6. The mass production vehicle evaluation experiment simulation signal interference device of claim 5, wherein: the automatic simulation device comprises an electric box, and is characterized by further comprising an automatic simulation assembly, wherein the automatic simulation assembly comprises a signal generator and a signal amplifier, the signal generator and the signal amplifier are connected in series, the input end of the automatic simulation assembly is connected with the first interface, the output end of the automatic simulation assembly is connected with the second interface, the first interface is connected with the manual simulation assembly and the automatic simulation assembly through a selection switch, and the selection switch is arranged on the surface of the electric box.

Images