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Combination instrument for hybrid vehicle type

A combination meter and hybrid technology, applied in vehicle components, transportation and packaging, etc., can solve problems such as low physical communication rate of K-line diagnostic system

Active Publication Date: 2012-12-05
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the physical communication rate of K-line diagnosis system is mostly low, and its online diagnosis function has great limitations, and the online diagnosis function is particularly important in the complex vehicle network of hybrid vehicles.

Method used

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  • Combination instrument for hybrid vehicle type
  • Combination instrument for hybrid vehicle type
  • Combination instrument for hybrid vehicle type

Examples

Experimental program
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Embodiment Construction

[0022] as attached figure 1 As shown, the hybrid vehicle of the present invention performs bus signal control based on the CAN communication network, and all sensing signals and I / O signals are transmitted to the corresponding control system nodes of the CAN network, and each control system node sends information to the instrument cluster through the CAN bus and other corresponding control units. The combination meter contains two physical CAN ports. Compared with the general single CAN port node, the combination meter can realize the gateway function. At the same time, the combination meter is connected to one of the control system nodes of the CAN network of the vehicle, and has CAN bus communication Function. The combination meter includes an instrument shell, an intelligent terminal display screen, a display control unit and a CAN interface module, the combination meter is connected to the control node of the CAN bus through the CAN interface module, and the CAN interface...

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Abstract

The invention provides a combination instrument based on a CAN (controller area network) bus, which has an on-line diagnosis function and can effectively improve a signal display reuse area and the display technology sense. The combination instrument comprises an instrument shell, an intelligent terminal display screen, a display control unit and a CAN interface module, wherein display information (comprising sensor information and I / O information) is transmitted to the combination instrument via the CAN bus to be displayed; a diagnosis protocol adopts CAN-based KWP2000 on-board diagnostic service protocol; the intelligent terminal display screen comprises an LED (light emitting diode) display area and a liquid crystal display area; and the liquid crystal display area further comprises a multifunctional display area capable of carrying out switching display. When the combination instrument is adopted, the display information amount and the display precision can be greatly improved. Meanwhile, the combination instrument based on the CAN bus has an on-line fault diagnosis function, and the maintainability of a finished vehicle can be effectively improved.

Description

technical field [0001] The invention relates to the field of instrument display of automobiles, and more specifically relates to a liquid crystal display combined instrument with CAN communication function for a hybrid electric vehicle. Background technique [0002] In recent years, energy is scarce, and the promotion of new energy vehicles is an inevitable trend in the future development of the world. Hybrid vehicles can effectively reduce fuel consumption and are not limited by the mileage similar to pure electric vehicles. They are currently the most popular new vehicles. Energy models. [0003] Due to the use of a large number of power electronics related equipment in hybrid vehicles, the demand for display has increased sharply. In the case of generally limited space for passenger cars and simple and clear display requirements, such as the use of traditional instrument display solutions can no longer meet the needs of hybrid vehicles. Therefore, there is an urgent need...

Claims

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Application Information

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IPC IPC(8): B60K35/00
Inventor 周嗣理刘长伟赵涛
Owner CHERY AUTOMOBILE CO LTD
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