CN201773321U

CN201773321U - Can bus controller debugging system

Info

Publication number: CN201773321U
Application number: CN2010205007856U
Authority: CN
Inventors: 扶朝阳; 扶朝晖
Original assignee: NINGBO YINZHOU SUELIMAN ELECTRIC METER CO Ltd
Current assignee: NINGBO YINZHOU SUELIMAN ELECTRIC METER CO Ltd
Priority date: 2010-08-19
Filing date: 2010-08-19
Publication date: 2011-03-23
Anticipated expiration: 2020-08-19

Abstract

The utility model discloses a CAN bus controller debugging system, which comprises a PC machine (1), a diagnosis module (2), an analog output module (3), a data acquisition module (4), a fictitious load box (5) and a CAN bus controller (7). The PC machine (1) is electrically connected with the diagnosis module (2) through a USB interface line, the diagnosis module (2) is electrically connected with the analog output module (3) through a CAN bus, the analog output module (3) is electrically connected with the CAN bus controller (7), the CAN bus controller (7) is electrically connected with the fictitious load box (5) and electrically connected with the diagnosis module (2) through the CAN bus, and the data acquisition module (4) is electrically connected with the fictitious load box (5) and connected with the diagnosis module (2) through the CAN bus after acquiring signals. The CAN bus controller debugging system has the advantages of convenient debugging and capability of judging fault reasons better.

Description

CAN bus controller debug system

Technical field

The utility model relates to the Vehicle Electronic Control field, relates in particular to automobile bus control field, specifically is meant a kind of CAN bus controller debug system.

Background technology

Bus is undertaken exchanges data and instruction transmission between each subsystem as " passages through which vital energy circulates " of distributed servo-control system, is the important component part of dcs, and its performance quality has directly determined the performance of whole dcs.CAN, full name are " Controller Area Network ", i.e. controller local area network is one of most widely used fieldbus in the world.The CAN bus be German Bosch company from the beginning of the eighties for solving control the Hyundai Motor and a kind of data communication protocol of walking of two exploitations of the exchanges data between the testing tool.It is a kind of serial communication bus of many master modes, and basic design specifications requires that the bit rate of doing is arranged, and high noise immunity, error detecing capability are very strong.Because it has adopted many new technologies and unique design, it not only is widely used at aspects such as automotive control system, Medical Instruments and boats and ships transportations, equally also in the servocontrol field outstanding performance is arranged equally.The data communication of comparing the CAN bus with general communication bus has outstanding reliability, real-time and dirigibility.

The effect of above-mentioned bus is the data communication that is connected between the instrument that controller and connection are provided on the bus controller, and bus controller then is to be used for receiving the phase related control information and to send relevant execution signal according to control information inputing to the load execution.

At present, in field of automobile control, control module and back control module before bus controller generally is divided into again, module is controlled on the top that also is provided with that has, before control module, back control module and top control module be equality for its control relation, difference is that each module controls different loads respectively, all receive each other on the CAN bus signal and mutually scheduling distribute to the control corresponding module and go to carry out.

After bus controller develops, to debug it, check its function whether to reach the requirement of the development function of wanting, common way is to be connected with the CAN bus controller being provided with the load simulation case that fictitious load uses, the preceding control module of CAN bus controller, back control module and top control module connect by the CAN bus each other, control needs according to each load are provided with gauge tap respectively in addition, gauge tap to each load correspondence is operated control load, thereby whether check CAN bus controller satisfies the requirement of development function.Though this debug system is simple in structure, but debugging is inconvenience very, can only control a load at every turn, and the gauge tap that needs each load of manual operation, the record implementation status is very inconvenience also, in addition, if break down in the implementation, where out of joint also be difficult to judgement, thereby can not fix a breakdown to CAN bus controller or other modules more targetedly.

The utility model content

The technical problems to be solved in the utility model is, provides a kind of and debugs conveniently, the better CAN bus controller debug system of failure judgement reason.

Technical solution of the present utility model provides following a kind of CAN bus controller debug system, comprise PC, diagnostic module, analog output module, data acquisition module, fictitious load case and CAN bus controller, described PC is electrically connected with diagnostic module by usb line, diagnostic module is electrically connected with analog output module by the CAN bus, analog output module is electrically connected with the CAN bus controller, the CAN bus controller is electrically connected with the fictitious load case, described CAN bus controller is electrically connected with diagnostic module by the CAN bus, and described data acquisition module is electrically connected with the load simulation case also and is connected in diagnostic module by the CAN bus after the acquired signal;

Wherein said diagnostic module is that the signal with the signal of USB interface communication standard and CAN bus communication standard changes mutually, and whether the signal of diagnosis output input is correct;

Wherein said analog output module is that the signal with the control load of PC output is converted into and carries out signal and export to the CAN bus controller, and promptly analog output module be the action of the control signal fictitious load gauge tap exported according to PC;

Wherein said fictitious load case is to be used for the various loads of simulated automotive reality;

Data acquisition module wherein is the data that are used for gathering the various fictitious load implementation status in the fictitious load case.

After adopting this programme, during debugging CAN bus controller, can make things convenient for each fictitious load of centralized control by PC, except bus controller can report to PC by diagnostic module with implementation status, also be provided with the actual implementation status of data collecting module collected load and report to PC by diagnostic module, so the implementation status that can more effective inspection controller and the implementation status of actual loading, and can judge the reason that fault occurs preferably so that get rid of according to feedback.

As preferably, also comprise Displaying Meter, described Displaying Meter is electrically connected with the CAN bus controller, the implementation status of bus controller can be reflected on the instrument by this scheme, can test to the demonstration situation of instrument so simultaneously.

As preferably, control module, back control module and top control module before described CAN bus controller comprises, preceding control module, back control module and top control module adopt the CAN bus to connect each other, and this is a kind ofly on automobile to use comparatively widely.

Description of drawings

Fig. 1 is the utility model CAN bus controller debug system theory diagram.

Shown in the figure:

1, PC, 2, diagnostic module, 3, analog output module, 4, data acquisition module, 5, the fictitious load case, 6, Displaying Meter, 7, the CAN bus controller

Embodiment

Embodiment of the present utility model is described in detail the technical solution of the utility model for better illustrating below in conjunction with accompanying drawing.

As shown in fig. 1, a kind of CAN bus controller debug system, comprise PC 1, diagnostic module 2, analog output module 3, data acquisition module 4, fictitious load case 5 and CAN bus controller 7, described CAN bus controller 7 comprises the preceding control module that adopts the CAN bus to connect each other, back control module and top control module, described PC 1 is electrically connected with diagnostic module 2 by usb line, diagnostic module 2 is electrically connected with analog output module 3 by the CAN bus, analog output module 3 is electrically connected with CAN bus controller 7, CAN bus controller 7 is electrically connected with fictitious load case 5, described CAN bus controller 7 is electrically connected with diagnostic module 2 by the CAN bus, and described data acquisition module 4 is electrically connected with load simulation case 5 also and is connected in diagnostic module 2 by the CAN bus after the acquired signal;

Wherein said diagnostic module 2 is that the signal with the signal of USB interface communication standard and CAN bus communication standard changes mutually, and whether the signal of diagnosis output input is correct;

Wherein said analog output module 3 is that the signal with the control load of PC 1 output is converted into and carries out signal and export to CAN bus controller 7, and promptly analog output module 3 be the action of the control signal fictitious load gauge tap exported according to PC;

Wherein said fictitious load case 5 is to be used for the various loads of simulated automotive reality;

Data acquisition module 4 wherein is the data that are used for gathering the various fictitious load implementation status in the fictitious load case 5.

As a kind of embodiment preferably, also comprise Displaying Meter 6, described Displaying Meter 6 is electrically connected with CAN bus controller 7.

Describe especially at this, the PC 1 that the utility model is mentioned, analog output module 3, fictitious load case 5, CAN bus controller 7 and CAN bus are prior art and existing product are arranged, described diagnostic module 2 markets also have existing product can realize correlation function, data acquisition module 4 also is prior art as a kind of sampling module, analog output module 3 for simulation gauge tap action module, so be not described in detail in this.

In the above-described embodiments, preferred forms of the present utility model is described, obviously, under inventive concept of the present utility model, still can make a lot of variations, described control procedure is to realize by software programming basically entirely, can realize more perfect control function by different software programmings.Key of the present utility model is, is provided with analog output module, utilizes PC and the conversion of signals by diagnostic module to realize centralized control and debugging to the CAN bus controller, and is easy to operate.At this, should illustrate that any change of being made all will fall in the protection domain of the present utility model under inventive concept of the present utility model.

Claims

1. CAN bus controller debug system, it is characterized in that: comprise PC (1), diagnostic module (2), analog output module (3), data acquisition module (4), fictitious load case (5) and CAN bus controller (7), described PC (1) is electrically connected with diagnostic module (2) by usb line, diagnostic module (2) is electrically connected with analog output module (3) by the CAN bus, analog output module (3) is electrically connected with CAN bus controller (7), CAN bus controller (7) is electrically connected with fictitious load case (5), described CAN bus controller (7) is electrically connected with diagnostic module (2) by the CAN bus, and described data acquisition module (4) is electrically connected with load simulation case (5) also and is connected in diagnostic module (2) by the CAN bus after the acquired signal;

Wherein said diagnostic module (2) is that the signal with the signal of USB interface communication standard and CAN bus communication standard changes mutually, and whether the signal of diagnosis output input is correct;

Wherein said analog output module (3) is that the signal with the control load of PC (1) output is converted into and carries out signal and export to CAN bus controller (7);

Wherein said fictitious load case (5) is to be used for the various loads of simulated automotive reality;

Data acquisition module wherein (4) is the data that are used for gathering the various fictitious load implementation status in the fictitious load case (5).

2. CAN bus controller debug system according to claim 1 is characterized in that: also comprise Displaying Meter (6), described Displaying Meter (6) is electrically connected with CAN bus controller (7).

3. CAN bus controller debug system according to claim 1 is characterized in that: described CAN bus controller (7) comprises preceding control module, back control module and the top control module that adopts the CAN bus to connect each other.