ECU and voice service method for engine electric injection system

Abstract

The invention relates to an engine electronic fuel injection system ECU and a speech service method. The engine electronic fuel injection system ECU comprises an ECU microprocessor for controlling oil injection and ignition of an internal combustion engine, and is characterized in that the ECU further comprises a speech information processor and a speech information memory, wherein the speech information memory stores content requiring broadcast, and the content requiring broadcast is controlled by the ECU microprocessor. The method comprises the following steps that: a) states and maintenance service information related to the engine and the electronic fuel injection system thereof are subjected to classification numbering, and the obtained states and the information are adopted as content requiring broadcast to be subjected to classification numbering and stored in the speech information memory; and b) the ECU microprocessor generates at least one classification number according to the failure diagnosis result and the service type, the classification number is adopted as an index to sequentially transfer the related broadcast content into the speech information processor, and the speech information processor converts the content into an audio signal. With the present invention, maintenance staffs or users can conveniently, timely and accurately acquire failure contents of the engine and the electronic fuel injection system thereof, and perform self-maintenance so as to reduce maintenance cost.

Description

technical field [0001] The invention relates to an electronic control unit (ECU) of an engine equipped with an electronic fuel injection system (EFI system) and related voice service technology, especially for motorcycles, small general power machinery, all-terrain vehicles, small general aviation aircraft and watercraft Fault diagnosis and maintenance services for motorboats and other types of EFI engines. Background technique [0002] The EFI penetration rate of automobiles, especially cars, has a very high proportion all over the world. The after-sales service network is relatively sound, and the training of after-sales service personnel is relatively in place. [0003] In contrast, motorcycles, small general-purpose power machinery, all-terrain vehicles, small general aviation aircraft and jet skis do not have a sound after-sales service network for EFI systems, and even lack professional after-sales service personnel. Traditional after-sales service technology is very p...

AI Technical Summary

Problems solved by technology

Another example is the vehicle diagnostic test voice reporting method and device disclosed in Chinese invention patent 200610163908. The dedicated telematics processing unit receives the request from the remote call center or the car driver, then exchanges information with the on-board diagnostic system by means of communication, and then broadcasts the relevant information to the car driver or the remote call center in the form of voice. Complex and huge, the essence of its invention is not to solve the problem at low cost through the resource advantages of the ECU itself, nor to try to use existing social resources: such as mobile phones and personal computers to solve the problem at low cost, so it is not suitable for use in the present invention. Large-scale promotion in the field of application involved

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