Control unit for controlling IP (Intellectual Property) core by integrating multiple engines

Abstract

The invention discloses a control unit for controlling an IP core by integrating multiple engines, adopting an FPGA (Field Programmable Gate Array) and comprising a processor, a bus, a DCM (Digital Clock Manager), an output clock signal, an EPA (Engine Position Acquisition) module, an IPC module (Injection Process Control), an ADC (Analog-to-Digital Conversion) module and an interrupt controller, wherein the EPA module is used for outputting phase signals for representing the current positions of engines and engine rotation speed signals according to input crank signals and camshaft signals; the IPC module is used for outputting engine oil injection pulse control signals according to the input phase signals of the current positions of the engines; the ADC module is used for controlling an external analog-to-digital conversion chip to carry out the analog-to-digital conversion on the signals; the EPA module, the IPC module and the ADC module respectively support an interrupt work mode; the interrupt controller manages all interrupt signals and outputs the interrupt signals of the processor; and the processor, the DCM, the EPA module, the IPC module, the ADC module and the interrupt controller are respectively mounted to the bus in manner of the IP core. The invention utilizes FPGA hardware, thereby greatly increasing the computation speed.

Description

technical field [0001] The present invention relates to an electronic fuel injection (electronic fuel injection, EFI) system of an engine, such as for a marine or vehicle engine, and in particular to an electronic control unit (electronic control unit) in an electronic fuel injection system of an engine. ECU). Background technique [0002] The EFI system of the engine can be divided into three subsystems: fuel delivery system, air induction system and electronic control system. Among them, the electronic control subsystem includes ECU, various sensors, fuel injector assembly and so on. [0003] At present, the ECU in the engine EFI system generally selects a microcontroller (microcontroller, microcontroller). With the increasing requirements of engine control accuracy and the increasingly complex control functions, the computing and processing capabilities of single-chip microcomputers have been difficult to handle the requirements of large amounts of information. For exa...

AI Technical Summary

Problems solved by technology

For example, the life cycle of the single-chip microcomputer is inconsistent with the life cycle of the engine, which may cause inconvenience to engine maintenance after the single-chip microcomputer stops production; this contradiction is particularly prominent when the electronic control subsystem is produced in small batches

Images