CN209756811U - A combination car instrument - Google Patents

Abstract

The utility model discloses a combined automobile instrument, which comprises a central control unit, a display unit and a signal receiving port; the signal receiving port is used for receiving signals from vehicle sensors, the signal receiving port is connected with the central control unit, and the display unit is connected with the signal receiving port respectively. The receiving port is connected to the central control unit; the display unit is connected to the driving indicator group and the vehicle condition indicator group, the driving indicator group is connected to the central control unit through the CAN bus, and the vehicle condition indicator group is connected to the signal receiving port. Data information code transmission is very fast; reduce the dependence of the combination instrument on the wiring harness sensor, thereby reducing the price of the vehicle wiring harness. The combination instrument is designed with a TFT LCD screen, which can meet the requirements for displaying content on the multi-functional UI interface.

Description

A combination car instrument

technical field

The utility model relates to the field of automobile electronics, in particular to a combined automobile instrument.

Background technique

Auto instrumentation is one of the important parts of the car, which can reflect various dynamic indicators of the car in a concentrated, intuitive and rapid manner. It is a window through which the driver can directly understand the status of the car. Driving offers a guarantee.

With more and more intelligent functions of vehicle models, the traditional hard-wire driven electronic instrument cluster through sensors can no longer meet the modern digital development trend.

Utility model content

In order to solve the above problems, the utility model proposes a combined vehicle instrument, including a central control unit, a display unit and a signal receiving port; the signal receiving port is used to receive signals from vehicle sensors, and the signal receiving port is connected to the central control unit to display The units are respectively connected to the signal receiving port and the central control unit; the display unit driving indicator group and the vehicle condition indicator group, the driving indicator group is connected to the central control unit through the CAN bus, and the vehicle condition indicator group is connected to the signal receiving port connection.

Further, the display unit further includes a backlight group connected to the signal receiving port for backlighting the instrument.

Further, the display unit also includes a dial connected to the central control unit for displaying vehicle parameters.

Further, the display unit also includes an instrument screen, which is connected to the central control unit, and the instrument screen is a TFT liquid crystal screen for displaying vehicle information.

The combined vehicle instrument also includes a power control unit, the input end of which is connected to the signal receiving port, and the output end is connected to the central control unit for transmitting the received vehicle power signal and providing power for the instrument at the same time.

The combined vehicle instrument also includes a power warning unit, which receives the vehicle power signal through the signal receiving port, and is used for power failure warning.

The beneficial effect of the utility model is that: the data information code transmission is very fast; the dependence of the combined instrument on the wire harness sensor is reduced, thereby reducing the price of the whole vehicle wire harness. The combination instrument is designed with a TFT LCD screen, which can meet the requirements for displaying content on the multi-functional UI interface.

Description of drawings

Figure 1 is a structural schematic diagram of a combined vehicle instrument;

Fig. 2 is a structural schematic diagram of the driving indicator group;

Fig. 3 is a structural schematic diagram of the vehicle condition indicator group.

Detailed ways

In order to make those skilled in the art better understand the technical solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Fig. 1, a kind of combined automobile instrument comprises central control unit, display unit and signal receiving port; Described signal receiving port is used for receiving the signal of vehicle sensor, and signal receiving port is connected with central control unit, and display unit is connected with respectively The signal receiving port is connected to the central control unit; the display unit is connected to a driving indicator group and a vehicle condition indicator group, the driving indicator group is connected to the central control unit through a CAN bus, and the vehicle condition indicator group is connected to the signal receiving port.

The combination instrument adopts the CAN communication controller LAN structure design. By building the CAN communication controller LAN of each control system matched with the vehicle, the various electrical controllers matched with the vehicle can identify the working status of each system component of the vehicle, and then The identified working status is converted into data information codes and sent to the central control unit of the combination instrument. The internal design of the central control unit has been edited to complete the storage of all data information codes of the vehicle and the corresponding response actions, analyze the faults of various data information codes, and make corresponding indicator lights and fault alarm display prompts.

In this embodiment, A1~A32 signal interfaces as shown in FIG. 1 are provided for accessing various sensor signals of the vehicle. Among them, as shown in Figure 2, the driving status signal is directly connected to the central control unit, and the driving indicator group includes functional indicators such as lights, reversing, and slope assistance, and the central control unit processes the received signals and makes corresponding responses instruct. The driving indicator group is controlled by the CAN bus, which reduces the need for sensor hard wires and reduces costs. CAN communication data information code transmission is very fast, can reach 32bytes effective data transmission per second, and use intelligent control to achieve more functions. As shown in Figure 3, the vehicle condition indicator group is directly controlled by the vehicle sensor signal, depending on the function, it is selected to be controlled by one or more sensor signals. The vehicle condition indicator group includes engine oil pressure, water level and air filter blockage, etc.

Further, the display unit further includes a backlight group and a dial, and the backlight group is connected to the signal receiving port for backlighting the instrument. The backlight is set under the instrument panel, etc., and the brightness is adjusted according to the intensity of the external light, so that the driver can clearly observe the instrument parameters. The dial is connected with the central control unit, and the central control unit outputs numerical values according to the input signal to display the vehicle speed, vehicle speed, water temperature, and fuel quantity parameters, so that the driver can directly see them.

Further, the display unit also includes an instrument screen, which is connected to the central control unit, and the instrument screen is a TFT liquid crystal screen for displaying vehicle information. It can realize the display content requirements of the multi-function UI interface, including multi-failure liquid crystal UI interface reminder display of the combined instrument, instrument auxiliary function setting (time, backlight brightness), tire pressure monitoring real-time monitoring function, maintenance mileage setting reminder function, etc.

The combined vehicle instrument also includes a power control unit, the input end of which is connected to the signal receiving port, and the output end is connected to the central control unit for transmitting the received vehicle power signal and providing power for the instrument at the same time.

The combined vehicle instrument also includes a power warning unit, which receives the vehicle power signal through the signal receiving port, and is used for power failure warning. Including buzzer, voltage alarm, charging reminder, brake wear, and low oil alarm. One end of the power warning unit is connected to the signal receiving port to receive sensor signals, and the other end is connected to the central control unit. The alarm function is mainly controlled by the central control unit.

What is disclosed above is only a preferred embodiment of the utility model, and of course it cannot limit the scope of rights of the utility model. Therefore, equivalent changes made according to the claims of the utility model still fall within the scope of the utility model.

Claims (6)

1. A combination vehicle instrument, is characterized in that, comprises central control unit, display unit and signal receiving port; Described signal receiving port is used for receiving the signal of vehicle sensor, and signal receiving port is connected with central control unit, and display unit is connected with respectively The signal receiving port is connected to the central control unit; the display unit is connected to a driving indicator group and a vehicle condition indicator group, the driving indicator group is connected to the central control unit through a CAN bus, and the vehicle condition indicator group is connected to the signal receiving port. 2 . The combined vehicle instrument according to claim 1 , wherein the display unit further comprises a backlight group, and the backlight group is connected to the signal receiving port to perform backlighting for the instrument. 3 . 3 . The combined vehicle instrument according to claim 1 , wherein the display unit further comprises a dial, and the dial is connected to the central control unit for displaying vehicle parameters. 4 . 4. A combination vehicle instrument according to claim 1, characterized in that, the display unit also includes an instrument screen, the instrument screen is connected to the central control unit, and the instrument screen is a TFT liquid crystal screen for displaying Vehicle Information. 5. A combination vehicle instrument according to claim 1, further comprising a power control unit, the input end of the power control unit is connected to the signal receiving port, and the output end is connected to the central control unit for transmitting and receiving Vehicle power signal, also provides unit for instrumentation. 6 . The combined vehicle instrument according to claim 1 , further comprising a power warning unit, the power warning unit receives the vehicle power signal through the signal receiving port, and is used for power failure warning. 7 .