Vehicle-mounted combination instrument control system

Abstract

The utility model relates to a vehicle-mounted combination instrument control system which comprises an instrument controller, a storage battery, a vehicle speed sensor, an air pressure sensor, a steering wheel operation key and a light switch. The vehicle speed sensor, the air pressure sensor, the steering wheel operation key and the light switch are connected with the CAN bus through the instrument controller, and the CAN bus is connected with the multimedia device, the remote terminal control device and the whole vehicle controller. A layered architecture is adopted, and each controller is not limited by an overall operating system and a hardware platform, so that the universality and portability are improved; the application module controller is independent, corresponding application software can be increased or decreased according to different requirements, customized development of instrument functions is achieved, the development period is shortened, and the development efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a vehicle-mounted combined instrument control system. Background Art

[0002] Existing vehicle instruments are unique instrument control systems developed by various manufacturers based on their own resources and tool chains. They are restricted by hardware platforms and development tool chains, and the controller architecture design hierarchy is not clear enough. The application layer and the underlying driver are coupled together without strict interface specification constraints. They are often costly in terms of portability and versatility. When switching between different operating systems or hardware platforms, it is difficult to reuse application layer codes, which reduces development efficiency. Summary of the invention

[0003] In order to solve the problems existing in the prior art, the utility model provides a vehicle-mounted combined instrument control system.

[0004] In order to solve the problems in the above background technology, the present invention is implemented through the following technical solutions:

[0005] A vehicle-mounted combined instrument control system comprises an instrument controller, a battery, a vehicle speed sensor, an air pressure sensor, a steering wheel operating button and a light switch, wherein the battery is connected to a light relay via the instrument controller, the vehicle speed sensor, the air pressure sensor, the steering wheel operating button and the light switch are connected to a CAN bus via the instrument controller, and the CAN bus is connected to a multimedia device, a remote terminal control device and a vehicle controller.

[0006] Preferably, the instrument controller is connected to the vehicle speed sensor through the GPIO interface; the instrument controller is connected to the air pressure sensor through the AD interface; the instrument controller is connected to the steering wheel operation buttons through the LIN bus; one end of the light relay is connected to the instrument controller, and the other end of the light relay is connected to the cab indicator light and the warning light.

[0007] Preferably, the multimedia device includes a central control screen and an instrument screen

[0008] Compared with the prior art, the utility model has the following beneficial technical effects:

[0009] By adopting a layered architecture, each controller is not restricted by the overall operating system and hardware platform, which improves versatility and portability; the application module controller is independent and can add or reduce corresponding application software according to different needs, realizing customized development of instrument functions, shortening the development cycle and improving development efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1This is a system topology diagram of the present utility model.

[0011] Reference numerals

[0012] 1. Instrument controller; 2. Battery; 3. Vehicle speed sensor; 4. Air pressure sensor; 5. Steering wheel operation buttons; 6. Light switch; 7. Light relay; 8. CAN bus; 9. Multimedia device; 10. Remote terminal control device; 11. Vehicle controller. DETAILED DESCRIPTION

[0013] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0014] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0015] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] like Figure 1 As shown, a vehicle-mounted combined instrument control system includes an instrument controller 1, a battery 2, a vehicle speed sensor 3, an air pressure sensor 4, a steering wheel operation button 5 and a light switch 6. The battery 2 is connected to a light relay 7 through the instrument controller 1, the vehicle speed sensor 3, the air pressure sensor 4, the steering wheel operation button 5 and the light switch 6 are connected to a CAN bus 8 through the instrument controller 1, and the CAN bus 8 is connected to a multimedia device 9, a remote terminal control device 10 and a vehicle controller 11.

[0017] The battery 2 is used to power the instrument controller 1. The instrument controller 1 uses the GPIO interface to collect pulse signals from the vehicle speed sensor 3, uses the AD interface to collect data from the brake pressure sensor 4, obtains operation information from the steering wheel operation buttons 5 through the LIN bus, realizes data interaction with the multimedia device 9 and the vehicle controller 11 through the CAN bus 8, and controls the cab indicator lights and warning lights by driving the light relay 7.

[0018] The vehicle instantaneous speed information is received through the vehicle speed sensor 3 or the CAN bus 8, and the real-time increment of the vehicle mileage is calculated according to the instantaneous speed. The mileage is stored at certain driving distances, and the updated total mileage value is sent to the remote terminal through the remote terminal control device 10 for backup. When the instrument mileage is lost or replaced, the total mileage value is written through the remote terminal, thereby correctly recording the total mileage data, ensuring normal vehicle maintenance, and preventing malicious mileage writing.

[0019] The instrument controller 1 is connected to the vehicle speed sensor 3 through the GPIO interface; the instrument controller 1 is connected to the air pressure sensor 4 through the AD interface; the instrument controller 1 is connected to the steering wheel operation button 5 through the LIN bus; one end of the light relay 7 is connected to the instrument controller 1, and the other end of the light relay 7 is connected to the cab indicator light and the warning light.

[0020] The multimedia device 9 includes a central control screen and an instrument screen.

Claims

1. A vehicle-mounted combination instrument control system, characterized in that: The invention comprises an instrument controller (1), a battery (2), a vehicle speed sensor (3), an air pressure sensor (4), a steering wheel operating button (5) and a light switch (6); the battery (2) is connected to a light relay (7) through the instrument controller (1); the vehicle speed sensor (3), the air pressure sensor (4), the steering wheel operating button (5) and the light switch (6) are connected to a CAN bus (8) through the instrument controller (1); and the CAN bus (8) is connected to a multimedia device (9), a remote terminal control device (10) and a vehicle controller (11).

2. The vehicle-mounted combination instrument control system according to claim 1, characterized in that: The instrument controller (1) is connected to the vehicle speed sensor (3) via a GPIO interface; the instrument controller (1) is connected to the air pressure sensor (4) via an AD interface; the instrument controller (1) is connected to the steering wheel operation button (5) via a LIN bus; one end of the light relay (7) is connected to the instrument controller (1), and the other end of the light relay (7) is connected to a cab indicator light and a warning light.

3. The vehicle-mounted combination instrument control system according to claim 1, characterized in that: The multimedia device (9) comprises a central control screen and an instrument screen.

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