Comprehensive test and control system for engine bench based on CAN bus

Abstract

The invention provides a comprehensive test and control system for an engine bench based on a CAN bus. The system comprises an engine, a dynamometer coaxially connected with the engine and applying adamping moment to the engine, a throttle for controlling the engine power, a lower computer and an upper computer communicates bidirectionally with the lower computer through the CAN bus, the lower computer includes a policy module, the policy module includes multiple control strategies, some of the control strategies adopt a PID control algorithm adopting increment to control the engine speed andtorque of the engine by adjusting the throttle opening of the engine and the excitation of the dynamometer, the remaining control strategies adopting a fuzzy PID control algorithm to adjust the throttle opening of the engine and the excitation of the dynamometer so as to control the speed and torque of the engine, and the upper computer is connected with the policy module to write a control program to the policy module to cause the policy module to execute the corresponding control strategies.

Description

technical field [0001] The invention relates to the technical field of engine bench comprehensive test control, in particular to a CAN bus-based engine bench comprehensive test control system. Background technique [0002] There are hundreds of internal combustion engine manufacturing enterprises in my country, and each enterprise has a different number of diesel engine test benches, plus various relevant scientific research institutes and colleges and universities, there are thousands of diesel engine test benches of various sizes. However, its development level is uneven. Some test benches are still in the condition of manual adjustment, and are currently in the original state of using visual readings and handwritten records, which are far from meeting the performance testing requirements of the modern automotive industry. For this reason, it is urgent to design a diesel engine test system with a high degree of automation, superior algorithms, relatively high measurement a...

AI Technical Summary

Problems solved by technology

However, its development level is uneven. Some test benches are still in the condition of manual adjustment. At present, they are in the original state of using visual readings and handwritten records, which are far from meeting the performance testing requirements of the modern automobile industry.

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