CN204258837U - A kind of vehicle bus failure detector - Google Patents

A kind of vehicle bus failure detector Download PDF

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Publication number
CN204258837U
CN204258837U CN201420732402.6U CN201420732402U CN204258837U CN 204258837 U CN204258837 U CN 204258837U CN 201420732402 U CN201420732402 U CN 201420732402U CN 204258837 U CN204258837 U CN 204258837U
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China
Prior art keywords
bus
vehicle
bus failure
control unit
electronic control
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CN201420732402.6U
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Chinese (zh)
Inventor
欧艳
王建磊
熊想涛
陈文强
吴成明
冯擎峰
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
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Priority to CN201420732402.6U priority Critical patent/CN204258837U/en
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Abstract

The utility model provides a kind of vehicle bus failure detector, belongs to technical field of automotive electronics.The bus requirements it solving vehicle in prior art manually carries out the problem of troubleshooting maintenance.This vehicle bus failure detector, the bus comprising vehicle and several control modules be connected in bus, vehicle bus failure detector also comprises for carrying out data communication with several control modules in bus thus the bus detection control device that whether breaks down of testbus and the electronic control unit for being connected output bus fault cues signal with bus detection control device, electronic control unit is connected with the bus failure suggestion device for pointing out bus failure signal, bus detection control device is connected in bus, bus detection control device is connected with electronic control unit, electronic control unit is connected with bus failure suggestion device.This device can go out bus failure by automatic decision, reduces the workload of bus testing staff, improves practicality.

Description

A kind of vehicle bus failure detector
Technical field
The utility model belongs to technical field of automotive electronics, relates to a kind of vehicle bus failure detector.
Background technology
Along with the development of economy, improving constantly of the living standard of people, automobile has progressed into common people family, due to the development of electronic technology, original complicated mechanical structure on automobile, gradually the electronic device more stable by performance replaces, and simultaneously the function of automobile also constantly increases, and a large amount of function increases improves automobile comfortableness in actual use and practicality.
The increase of a large amount of electronic modules, for vehicle provides more function, thus improves comfortableness and the practicality of vehicle, but the increase of electronic module in actual use, and the potential faults that electronic module exists also can correspondingly increase.At present, between each module on vehicle, most connection by CAN realizes data communication, CAN can solve the data communication problem in numerous module between ECU very well, but there will be due to external cause in actual use or the ECU internal cause of each electronic module causes its data do not send or all do not send out, this may be the ECU internal fault of each electronic module, also may be CAN fault, the method of sort this problem out is generally undertaken investigating thus confirming by bus testing staff, when bus malfunctions, bus testing staff arranges to keep in repair, when components and parts break down, other element testing personnel are needed to carry out troubleshooting maintenance, the fault that not bus failure causes sometimes is caused to need bus testing staff to carry out troubleshooting, thus increase the workload of bus testing staff.For the problems referred to above, Chinese patent discloses a kind of vehicle electronic controlling device (its application number is 200610088530.1), this device is sorted under multiple ECU group by multiple electronic control unit, relay is provided each ECU group, and between each ECU be connected in corresponding group and power supply supply.Connected between each ECU by communication network.When electric power is switched on, as long as no communication function mistake, each ECU exports the mark of the communication initiate mode indicating himself.The communicate status information of communication initiate mode or communication disabled status is in based on each ECU of instruction, when communicating status information between ECU group is inconsistent, relay error detection portion detects the mistake of relay, utilizes simple structure can detect mistake in the relay that every group provides like this.
Although above-mentioned patent can investigate out the mistake of ECU group appearance by relay, vehicle bus cannot be reflected intuitively and break down, still need bus to detect workman and carry out on-the-spot troubleshooting maintenance.
Summary of the invention
There are the problems referred to above for existing technology in the utility model, proposes a kind of vehicle bus failure detector, and this vehicle bus failure detector can go out bus failure by automatic decision, reduces the workload of bus testing staff, improve practicality.
The utility model is realized by following technical proposal: a kind of vehicle bus failure detector, the bus comprising vehicle and several control modules be connected in bus, it is characterized in that, described vehicle bus failure detector also comprises for carrying out data communication with several control modules in bus thus the bus detection control device that whether breaks down of testbus and the electronic control unit for being connected output bus fault cues signal with bus detection control device, described electronic control unit is connected with the bus failure suggestion device for pointing out bus failure signal, described bus detection control device is connected in bus, described bus detection control device is connected with electronic control unit, described electronic control unit is connected with bus failure suggestion device.
Be connected to several control modules in bus by bus connecting communication, if bus malfunctions, then can cause between each module and occur communication failure, for investigation is bus failure or control module faults itself faster, bus arranges bus detection control device, the data-signal that bus detection control device receives data-signal and its internal calculation that several control modules export default is compared, and during contrast judgement bus malfunctions output bus fault-signal to electronic control unit, electronic control unit receives bus failure signal output control signal and points out people to bus failure suggestion device, be convenient to bus and detect workman's investigation, troubleshooting maintenance is carried out to bus.
In above-mentioned vehicle bus failure detector, several control modules described comprise full-vehicle control module, engine control module, transmission control module and ABS brake control module.Full-vehicle control module, engine control module, transmission control module and ABS brake control module are control modules indispensable in modern vehicle car.
In above-mentioned vehicle bus failure detector, described bus failure suggestion device comprises bus failure warning light, and the output of described electronic control unit is connected with bus failure warning light, and described bus failure warning light is arranged in the panel board of vehicle.Electronic control unit exports control signal to bus failure warning light, and control bus fault cues lamp flash for prompting, is convenient to driver and discovers.
In above-mentioned vehicle bus failure detector, described bus failure suggestion device also comprises voice cue module and internal loudspeaker, and described electronic control unit is connected with voice cue module, and described voice cue module is connected with internal loudspeaker.Electronic control unit exports control signal to voice cue module, and control voice cue module and export voice message signal to internal loudspeaker, internal loudspeaker carries out bus failure voice message.
In above-mentioned vehicle bus failure detector, the bus of described vehicle is CAN.Vehicle car control module, engine control module, transmission control module and ABS brake control module, need by CAN connecting communication.
Compared with prior art, this vehicle bus failure detector has the following advantages: 1, automatically detect bus by arranging bus detection control device, reduces the workload that bus detects workman; 2, suggestion device is set, by the mode of warning light or voice message, car owner is pointed out; 3, be arranged in meter panel of motor vehicle by bus failure warning light, prompting effect is better.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1, CAN; 2, bus detection control device; 3, electronic control unit; 4, bus failure suggestion device; 4a, bus failure warning light; 4b, voice cue module; 4c, internal loudspeaker; 5, full-vehicle control module; 6, engine control module; 7, transmission control module; 8, ABS brake control module.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, a kind of vehicle bus failure detector, comprise the CAN 1 of vehicle, several control modules, bus detection control device 2, electronic control unit 3 and bus failure suggestion device 4, several control modules comprise full-vehicle control module 5, engine control module 6 transmission control module 7 and ABS brake control module 8, full-vehicle control module 5, engine control module 6, transmission control module 7 and ABS brake control module 8 are all connected in car CAN 1 even, bus detection control device 2 is connected in CAN 1, full-vehicle control module 5 is received by CAN 1, the data-signal that engine control module 6 transmission control module 7 and ABS brake control module 8 export, the output of bus detection control device 2 is connected with the input of electronic control unit 3, the output of electronic control unit 3 is connected with bus failure suggestion device 4.
Bus failure suggestion device 4 comprises bus failure warning light 4a and/or has voice cue module 4b and the internal loudspeaker 4c of sound prompt function, and the output of electronic control unit 3 is connected with bus failure warning light 4a; Bus failure warning light 4a is arranged in the panel board of vehicle; As the scheme of another kind of sound prompt function, electronic control unit 3 is connected with voice cue module 4b, and voice cue module 4b is connected with internal loudspeaker 4c.
The operation principle of this vehicle bus failure detector is as follows: be connected to the full-vehicle control module 5 in bus, engine control module 6, transmission control module 7 needs to be connected by bus to carry out data communication with modules such as ABS brake control module 8, if CAN 1 breaks down, then can cause between each module and occur communication failure, cause data communication complete or cannot communication be carried out, for investigation is bus failure or control module faults itself faster, fast vehicle is keeped in repair, CAN 1 arranges bus detection control device 2, bus detection control device 2 receives full-vehicle control module 5, engine control module 6, the data-signal that transmission control module 7 and ABS brake control module 8 export is through physical layer, data link layer, network layer, application layer is packaged into data the data-signal that can identify, and the data-signal that data-signal and its internal calculation are preset is compared, and contrast judgement CAN 1 when breaking down output bus fault-signal to electronic control unit 3, electronic control unit 3 receives bus failure signal and exports control signal to bus failure warning light 4a, control bus fault cues lamp 4a glimmers, electronic control unit 3 exports control signal to voice cue module 4b, control voice cue module 4b and export voice message signal to internal loudspeaker 4c, thus bus detection workman is pointed out, be convenient to bus and detect workman's investigation, troubleshooting maintenance is carried out to CAN 1, if when the data-signal of comparison is consistent, then do not output signal control bus fault cues lamp 4a to glimmer or internal loudspeaker 4c sounding.

Claims (5)

1. a vehicle bus failure detector, the bus comprising vehicle and several control modules be connected in bus, it is characterized in that, described vehicle bus failure detector also comprises for carrying out data communication with several control modules in bus thus the bus detection control device (2) that whether breaks down of testbus and the electronic control unit (3) for being connected output bus fault cues signal with bus detection control device (2), described electronic control unit (3) is connected with the bus failure suggestion device (4) for pointing out bus failure signal, described bus detection control device (2) is connected in bus, described bus detection control device (2) is connected with electronic control unit (3), described electronic control unit (3) is connected with bus failure suggestion device (4).
2. vehicle bus failure detector according to claim 1, it is characterized in that, several control modules described comprise full-vehicle control module (5), engine control module (6), transmission control module (7) and ABS brake control module (8).
3. vehicle bus failure detector according to claim 1, it is characterized in that, described bus failure suggestion device (4) comprises bus failure warning light (4a), the output of described electronic control unit (3) is connected with bus failure warning light (4a), and described bus failure warning light (4a) is arranged in the panel board of vehicle.
4. the vehicle bus failure detector according to claim 1 or 3, it is characterized in that, described bus failure suggestion device (4) also comprises voice cue module (4b) and internal loudspeaker (4c), described electronic control unit (3) is connected with voice cue module (4b), and described voice cue module (4b) is connected with internal loudspeaker (4c).
5. vehicle bus failure detector according to claim 1, is characterized in that, the bus of described vehicle is CAN (1).
CN201420732402.6U 2014-11-27 2014-11-27 A kind of vehicle bus failure detector Active CN204258837U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420732402.6U CN204258837U (en) 2014-11-27 2014-11-27 A kind of vehicle bus failure detector

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Application Number Priority Date Filing Date Title
CN201420732402.6U CN204258837U (en) 2014-11-27 2014-11-27 A kind of vehicle bus failure detector

Publications (1)

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CN204258837U true CN204258837U (en) 2015-04-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106161142A (en) * 2016-07-22 2016-11-23 广州众志诚信息科技有限公司 A kind of polymorphic type vehicle bus detector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106161142A (en) * 2016-07-22 2016-11-23 广州众志诚信息科技有限公司 A kind of polymorphic type vehicle bus detector
CN106161142B (en) * 2016-07-22 2019-12-03 广州众志诚信息科技有限公司 A kind of polymorphic type vehicle bus detector

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