Multi-functional automotive central information integration system for realizing filtration and forwarding between two CANs

An information integration system and multi-functional technology, which is applied in the field of multi-functional vehicle central information integration system, can solve problems such as the inability to realize the status display of the vehicle body, and achieve the effects of saving manufacturing costs, ensuring real-time performance and accuracy, and saving board-level costs
CN101559747AActive Publication Date: 2009-10-21CHINA AUTOMOTIVE TECH & RES CENT
0 Cites 51 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA AUTOMOTIVE TECH & RES CENT
Publication Date
2009-10-21

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a multi-functional automotive central information integration system for realizing filtration and forwarding between two CANs. Content displayed by an LCD comprises vehicle running state, vehicle body state display, navigation and position display and reversing backsight display. The method for realizing data filtration and forwarding between the two CANs comprises the following steps of: a, judging whether CAN data forwarding is idle and whether data exist in an FIFO buffer of CAN information, executing step e if .f., otherwise, sequentially executing the next step; b, reading frame data from the buffer, judging whether a data frame needs to be forwarded, executing step d if .f., otherwise, sequentially executing the next process; c, setting a forwarding busy flag bit, transferring the data frame to another CAN interface, clearing the forwarding busy flag bit after the data frame is sent, and returning to the step a; d, adjusting a data sending pointer, and processing the data frame; and e, executing the corresponding control display in a central information integration system according to frame definition (comprising parameter groups during data filtration and forwarding and corresponding parameter definition).
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to an automobile central information integration system, in particular to a multi-functional automobile central information integration system which integrates vehicle body CAN / power CAN bus network bridge function, instrument function, navigation positioning (GPS) function, and rear view function. system. Background technique

[0002] At present, in terms of the display function of the human-machine interface, most of my country's automobile central information integration systems still stay on the traditional functions of instrument display, mainly including speedometer, tachometer, fuel gauge, water temperature gauge, mileage and various Alarm indicator light. Mid-to-high-end cars are equipped with a central information display on the instrument system to display information such as instantaneous fuel consumption, average fuel consumption, average speed, mileage, door opening and closing status, indoor and outdoor tempe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More