Engine powered fork lift truck self-diagnosis control system

Abstract

The invention relates to an engine poweredfork lift truck self-diagnosis control system, which comprises a storage battery B, wherein the storage battery B supplies power to an engine controller ECU, an electric control gearbox controller TCU, a self-diagnosis intelligent instrument, a direction gear unit and a fingertip operation unit, and the engine controller ECU, the electronic control gearbox controller TCU, the self-diagnosis intelligent instrument, the direction gear unit and the fingertip operation unit communicate with one another through a CAN bus. According to the engine controller ECU and the self-diagnosis intelligent instrument, whether bus connection is smooth or not can be easily judged, and even if field personnel are not familiar with the bus, the problem can be easily solved; and on-site personnel can directly judge correct connection or fault points of the direction switch through the direction switch self-diagnosis chart in the self-diagnosis intelligent instrument, detection can be carried out without maintenance tools, and the maintenance time is shortened.

Description

technical field [0001] The invention relates to the technical field of internal combustion forklifts, in particular to a self-diagnosis control system for internal combustion forklifts. Background technique [0002] With the development of the internal combustion forklift industry and the upgrading of emissions, the number of electrical components used in forklifts has also increased, and the control has become increasingly complex. Real-time data exchange between electronic control units is required. At the same time, customers have put forward requirements for vehicle safety and comfort. For new requirements, most of the traditional connections adopt a single point-to-point communication method, and there are few connections between each other. Therefore, in order to meet the needs of traditional connections, a huge wiring system will be created. At the same time, in order to improve the communication speed and information exchange between electronic control units, reduce ...

AI Technical Summary

Problems solved by technology

[0003] A large number of CAN bus applications for internal combustion forklifts facilitate the control of parts or the whole machine. However, in the application, when a fault occurs or the status of a certain part needs to be known, because there is no professional tool for bus diagnosis, or personnel who do not understand bus technology cannot achieve it. Spending a lot of time at the user's place can't check out the fault, and can only eliminate and check the faulty parts one by one by replacing the parts

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