CN104057826A - Automobile combined instrument control unit, automobile combined instrument and display control method of automobile combined instrument - Google Patents

Abstract

The invention provides a control unit of an automobile combination instrument, comprising: a detection module, used to detect abnormal electronic system signals from various electronic system signals received by the CAN bus; a classification module, connected to the detection module, used to detect abnormal The electronic system signals are graded and processed according to the rules; the sorting module is connected with the graded module, and is used to determine the display sequence of the abnormal electronic system signals after graded processing by the graded module on the display screen. The present invention also provides an automobile combination instrument comprising the above-mentioned automobile combination instrument control unit and a display control method of the automobile combination instrument. The invention is simple and easy to implement, easy to popularize, and can display rich driving information, which is convenient for the driver to accurately grasp the state of the whole vehicle.

Description

Automobile combination instrument control unit, automobile combination instrument and display control method thereof

technical field

The invention relates to the technical field of automobiles, in particular to an automobile combination instrument control unit, an automobile combination instrument and a display control method thereof.

Background technique

With the improvement of living standards, more and more people own cars, and the car combination instrument is the interactive interface between people and cars, providing drivers with the required car operating parameters, faults, mileage and other information. An essential part of a car.

The intuition and beauty of the car combination instrument display make driving not only a need for transportation, but also a part of a comfortable life, and the accuracy and timeliness of parameter transmission are related to the safety of car driving.

At present, most cars use the indicator light on the car combination instrument to judge the state of the car, but many drivers do not know that the light on indicates that the system in the car is faulty, and they do not know whether the fault is serious or not. . In order to solve the above problems, the industry proposes to display the fault information on the display screen of the automobile combination instrument. Due to the influence of factors such as vehicle shape and cost, the size of the display screen on the trip computer is generally relatively small, and it cannot be easily displayed on this display screen. It is good to display driving information and fault information at the same time, especially when there are many fault information and the display is chaotic, the driver cannot judge the status of the vehicle at the first time, which affects safe driving.

Contents of the invention

Features and advantages of the invention are set forth in part in the description which follows, or may be obvious from the description, or may be learned by practice of the invention.

In order to overcome the problems in the prior art, the present invention provides a control unit of an automobile combination meter and an automobile combination meter including the vehicle combination meter control unit, and also provides a display control method of the car combination meter. These schemes are simple and easy to implement, easy to promote, and can display rich driving information, which is convenient for the driver to accurately grasp the status of the whole vehicle, reduces the possibility of traffic accidents, and is full of humanized design concepts.

The technical solution adopted by the present invention to solve the problems of the technologies described above is as follows:

According to one aspect of the present invention, there is provided a vehicle combination instrument control unit, including: a detection module, used to detect abnormal electronic system signals from various electronic system signals received by the CAN bus; a classification module, connected to the detection module for classifying and processing the abnormal electronic system signal according to a rule; the sorting module is connected with the classifying module and is used for determining the display sequence of the abnormal electronic system signal after being classified and processed by the classifying module on the display screen.

According to an embodiment of the present invention, the grading module classifies the abnormal electronic system signal that affects driving safety as high priority, and classifies the abnormal electronic system signal that affects driving stability as low priority.

According to an embodiment of the present invention, the sorting principle of the sorting module is: the display order is determined according to the grading result of the grading module, and the abnormal electronic system signal with a higher level is displayed first; when two or more abnormal electronic system signals If they belong to the same priority, the display sequence is determined according to the discovery time, and the abnormal electronic system signal with the earliest discovery time is displayed first.

According to an embodiment of the present invention, when the detection module detects the abnormal electronic system signal, the display screen automatically displays the abnormal electronic system signal processed by the sorting unit.

According to another aspect of the present invention, there is provided an automobile combination instrument, including: a CAN transceiver, which is used to receive each electronic system signal received from the CAN bus and forward the electronic system signal; the above-mentioned automobile combination instrument control unit, It is used to receive the electronic system signal forwarded by the CAN transceiver and process the electronic system signal; the display screen is used to display the driving information or the alarm information corresponding to the electronic system signal processed by the vehicle combination instrument control unit.

According to one embodiment of the present invention, when the detection module in the combination meter control unit detects no abnormal electronic system signal, the display screen displays the driving information; when the detection module in the combination meter control unit detects When there is an abnormal electronic system signal, the display screen will display the alarm information first.

According to an embodiment of the present invention, a switching key is also included for switching the driving information displayed on the display screen and the alarm information.

According to an embodiment of the present invention, after the abnormal electronic system signal returns to normal, the display screen will no longer display the alarm information corresponding to the abnormal electronic system signal.

According to yet another aspect of the present invention, a display control method of an automobile combination instrument is provided. First, a CAN transceiver receives signals from various electronic systems through the CAN bus and sends them to the automobile combination instrument control unit; Whether the system signal is abnormal, then classify the abnormal electronic system signal according to the law, and finally determine the display sequence of the abnormal electronic system signal; The alarm information corresponding to the signal is displayed.

According to an embodiment of the present invention, when the abnormal electronic system signal is classified according to the law, the abnormal electronic system signal that affects driving safety is classified as a high priority, and the abnormal electronic system signal that affects driving stability is classified as high priority. The system signals are divided into low priority; when determining the display order of the abnormal electronic system signals, the abnormal electronic system signals with higher levels are displayed first; when two or more abnormal electronic system signals belong to the same priority The display sequence is determined according to the discovery time, and the abnormal electronic system signal with the earliest discovery time is displayed first.

According to an embodiment of the present invention, when there is an abnormal electronic system signal, information corresponding to the abnormal electronic system signal is automatically displayed on the display screen; otherwise, the display screen displays the driving information.

According to an embodiment of the present invention, the driving information and the alarm information can be switched and displayed on the display screen by clicking the switching key.

According to an embodiment of the present invention, the display screen cyclically displays the alarm information corresponding to the abnormal electronic system signal processed by the vehicle combination meter control unit.

The invention provides an automobile combination meter control unit, an automobile combination meter including the vehicle combination meter control unit, and a display control method of the automobile combination meter, which can well display driving information and alarms even on a display screen with a limited size Information, so that the driver can judge the status of the vehicle at the first time, increasing driving safety. Moreover, these programs are simple to implement and easy to promote.

Those of ordinary skill in the art will better understand the features and contents of these technical solutions by reading the description.

Description of drawings

The advantages and implementation methods of the present invention will be more obvious by referring to the accompanying drawings and describing the present invention in conjunction with examples below, wherein the content shown in the accompanying drawings is only used for explaining the present invention, and does not constitute any sense of the present invention The constraints, in the attached image:

FIG. 1 is a schematic structural diagram of an automobile combination instrument according to an embodiment of the present invention.

Fig. 2 is a working principle diagram of the automobile combination instrument according to the embodiment of the present invention.

Fig. 3 is a logic diagram of the automatic display of the automobile combination instrument according to the embodiment of the present invention.

Fig. 4 is a logic diagram of switching and displaying an automobile combination meter according to an embodiment of the present invention.

Detailed ways

Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of an automobile combination instrument according to an embodiment of the present invention. The vehicle combination instrument 200 of the present invention includes a CAN (Controller Area Network, controller area network) transceiver 210 , a vehicle combination instrument control unit 220 and a display screen 230 . Wherein the CAN transceiver 210 is responsible for receiving the signals of each electronic system received from the CAN bus and forwarding these signals. In this embodiment, the automatic transmission control unit (Transmission ControlUnit, TCU) 110, the air conditioning system ( Heating, Ventilation and Air Conditioning (HVAC) 120 and Anti-locked Braking System (ABS) 130 are connected to CAN bus 140 , and the CAN transceiver 210 receives signals from various electronic systems through the CAN bus 140 . The CAN transceiver 210 processes the received signals and transmits them to the vehicle combination instrument control unit 220 through the CAN bus 140 .

The vehicle combination instrument control unit 220 is composed of a detection module 221 , a classification module 222 and a sorting module 223 connected in sequence. The detection module 221 is used to detect abnormal electronic system signals from various electronic system signals received by the CAN bus. The grading module 222 is connected with the detection module 221, and is used for grading and processing the abnormal electronic system signal according to the law; in this embodiment, the grading module classifies the abnormal electronic system signal that affects driving safety into High priority, classify the abnormal electronic system signal that affects driving stability as low priority. The sorting module 223 is connected with the grading module 222 , and is used for determining the display sequence of the abnormal electronic system signals that have been classified and processed by the grading module 222 on the display screen 230 . In this embodiment, the sorting principle of the sorting module 223 is: the display order is determined according to the classification result of the ranking module 222, and the abnormal electronic system signal with a higher level is displayed first; when two or more abnormal electronic system signals belong to For the same priority, the display order is determined according to the discovery time, and the abnormal electronic system signal with the earliest discovery time is displayed first.

The display screen 230 is used to display the driving information or the alarm information corresponding to the electronic system signal processed by the vehicle combination meter control unit. When the detection module 221 detects the abnormal electronic system signal, the display screen 230 automatically displays the abnormal electronic system signal processed by the sorting module 223. In this embodiment, the display screen 230 is on the trip computer.

Please refer to FIG. 2 at the same time. FIG. 2 is a working principle diagram of an automobile combination instrument according to an embodiment of the present invention. The storage battery 300 supplies power to the vehicle combination meter 200. When the ignition switch 400 is in the OFF gear, the display screen 230 on the vehicle combination meter 200 does not display any information, but when the ignition switch 400 is not in the OFF gear, the vehicle combination meter The display screen 230 on the 200 will display driving information or warning information. The driving information includes average vehicle speed, outdoor temperature, average fuel consumption, instantaneous fuel consumption, and mileage; the alarm information includes failure information of various systems, mainly engine control system, airbag system, anti-lock brake system, smart key system, electronic Parking brake (Electrical Park Brake, EPB) system and other system failure information.

The method for automatically displaying alarm information of the automobile combination instrument is shown in FIG. 3 . When there is no fault, what is displayed on the display screen 230 is the driving information. At this time, if the detection module 221 in the instrument cluster control unit 220 finds an abnormal electronic system signal, that is, when a faulty electronic system is found, it means If fault information is input, the classification module 222 will further confirm which priority these faulty electronic systems belong to, and pass the classification processing result to the sorting module 223 . The sorting module 223 will judge whether the fault information processed by the classification module 222 has only one priority. If there is only one priority, the display order will be determined according to the order of time. The late ones come last. If fault information belonging to high priority and fault information belonging to low priority exist at the same time, the fault information of high priority is displayed first and then the fault information of low priority is displayed. The fault information sorted by the sorting module 223 is cyclically displayed on the display screen 230 .

The detection module 221, the grading module 222 and the sorting module 223 work cyclically, so that the driver can grasp the real-time vehicle status, so when the failure of the faulty electronic system is eliminated, the faulty system should be alarmed accordingly The information is no longer displayed. For some failure information, the car combination instrument 200 will give the driver an operation prompt, such as "please close the trunk" and so on.

The car combination meter 200 also includes a switch key for switching the driving information and alarm information displayed on the display screen 230 , please refer to FIG. 4 for the specific method. Fig. 4 is the logical diagram of the switching display of the automobile combination instrument according to the embodiment of the present invention. When the vehicle combination instrument 200 displays the driving information, the driver can make the automobile combination instrument 200 display the alarm information by clicking the switching key. If there is no alarm information , then the car combination meter 200 does not display or displays prompts such as "no fault". If the driver does not click the switch key, the vehicle combination meter 200 will enter the mode of automatically displaying the alarm information, that is, the alarm information will be displayed when there is a fault information input, and the driving information will be displayed when there is no fault information input. In this embodiment, the switching key can be realized through a display mode switching (DISP) key on the car.

The automobile combination instrument control unit provided by the present invention, the automobile combination instrument including the automobile combination instrument control unit and the display control method of the automobile combination instrument take into account the inconvenient readability of multi-information display, adopt information level and classification processing, and automatically display through the display screen The way of displaying the alarm information and switching the alarm information by the user enables the user to fully understand the status of the vehicle in a timely manner and perform corresponding operations to achieve good driving habits and improve the driving safety factor.

The preferred embodiments of the present invention have been described above with reference to the accompanying drawings. Those skilled in the art can implement the present invention with various variants without departing from the scope and essence of the present invention. For example, features illustrated or described as part of one embodiment can be used on another embodiment to yield a still further embodiment. The above are only preferred feasible embodiments of the present invention, and are not intended to limit the scope of rights of the present invention. All equivalent changes made by using the description and drawings of the present invention are included in the scope of rights of the present invention.

Claims (12)

1. an automobile combination meter control unit, is characterized in that, comprising:

Detection module, detects abnormal electronic system signal for each electronic system signal of receiving from CAN bus;

Diversity module, is connected with described detection module, for described abnormal electronic system signal is carried out to classification processing by rule;

Order module, is connected with described diversity module, for determining through described diversity module classification abnormal electronic system signal after treatment DISPLAY ORDER on read-out.

2. automobile combination meter control unit according to claim 1, it is characterized in that, the described abnormal electronic system signal that affects drive safety is divided into high priority by described diversity module, and the described abnormal electronic system signal that affects driving stability is divided into low priority.

3. automobile combination meter control unit according to claim 1, is characterized in that, the principle of ordering of described order module is: determine DISPLAY ORDER by the classification results of described diversity module, the described abnormal electronic system signal that rank is high first shows; In the time that two and electronic system signal that the above is abnormal belong to same priority, determine DISPLAY ORDER by the priority of discovery time, discovery time described abnormal electronic system signal early first shows.

4. automobile combination meter control unit according to claim 1, is characterized in that, in the time that described detection module detects described abnormal electronic system signal, described read-out shows automatically through described sequencing unit abnormal electronic system signal after treatment.

5. an automobile combination meter, is characterized in that, comprising:

CAN transceiver, it is for receiving each electronic system signal of receiving from CAN bus and forwarding described electronic system signal;

Automobile combination meter control unit as claimed in claim 1, the electronic system signal forwarding for receiving described CAN transceiver, and described electronic system signal is processed;

Read-out, for showing running information or through the corresponding alarm message of described automobile combination meter control unit electronic system signal after treatment.

6. automobile combination meter according to claim 5, is characterized in that, in the time that the described detection module in described combination instrument control unit does not detect abnormal electronic system signal, described read-out shows described running information; In the time that the described detection module in described combination instrument control unit detects abnormal electronic system signal, the described alarm message of the preferential demonstration of described read-out.

7. automobile combination meter according to claim 5, is characterized in that, also comprises switch key, for the described running information and the described alarm message that are presented on described read-out are switched.

8. a display control method for automobile combination meter, is characterized in that,

CAN transceiver receives each electronic system signal by CAN bus, and sends to automobile combination meter control unit;

Described automobile combination meter control unit judges that whether described electronic system signal is abnormal, then abnormal electronic system signal is carried out to classification by rule, the DISPLAY ORDER of abnormal electronic system signal described in final decision;

Read-out shows by running information or through described automobile combination meter control unit described abnormal alarm message corresponding to electronic system signal after treatment.

9. the display control method of automobile combination meter according to claim 8, it is characterized in that, in the time that described abnormal electronic system signal is carried out to classification by rule, the described abnormal electronic system signal that affects drive safety is divided into high priority, the described abnormal electronic system signal that affects driving stability is divided into low priority; In the time determining the DISPLAY ORDER of described abnormal electronic system signal, described abnormal electronic system signal high rank is first shown; In the time that two and electronic system signal that the above is abnormal belong to same priority, determine DISPLAY ORDER by the priority of discovery time, discovery time described abnormal electronic system signal early first shows.

10. the display control method of automobile combination meter according to claim 8, it is characterized in that, in the time there is abnormal electronic system signal, on described read-out, automatically show the described abnormal corresponding information of electronic system signal, otherwise described read-out shows described running information.

The display control method of 11. automobile combination meters according to claim 8, is characterized in that, described running information and described alarm message can switch demonstration by pressing switch key on described read-out.

The display control method of 12. automobile combination meters according to claim 8, is characterized in that, described read-out is by the demonstration that circulates through described automobile combination meter control unit described abnormal alarm message corresponding to electronic system signal after treatment.