Intelligent starting protection system for starters

Abstract

The invention discloses an intelligent starting protection system for starters. Both input ends of a voltage stabilizing module and a voltage detection module are connected with a system power source while output ends thereof are respectively connected with a power source end and a voltage detection end of an electronic chip with a program package. An input end of an electronic switch detection module is connected with an electronic switch while an output end of the electronic switch detection module is connected with a signal input end of the electronic chip. A crystal oscillator control module is connected to a frequency control end of the electronic chip. An output end of the electronic chip is connected to a start relay of a starter through a main control switch. The real-time high-voltage protection voltage value of the protection system is set to be 27.8+ / -0.3V, the longest time for delay releasing of the start relay after starting is set to be 30s, and the system voltage value, at the rising edge, for controlling release of the start relay after starting, is set to be 24+ / -0.3V. The intelligent starting protection system judges states of the starters and controls starting circuits by analyzing variation of system voltage intelligently, thereby overcoming the defect of imperfect protection performance to the starters in the prior art.

Description

technical field [0001] The invention belongs to the technical field of electronic protection control of starters, and specifically refers to an intelligent starting protection system for starters. Background technique [0002] The starter is a DC motor with a short-time working system. It is prone to damage and other problems if it exceeds the specified working time. During use, the operator often forces the starter motor for a long time, and the starter is not disconnected in time after the engine is started. The operation method, as well as the long-term energization of the starter due to external circuit failures, will cause the starter to be damaged due to overheating. At present, the starter protection of the diesel engine is mainly realized through the protective relay. The main control method of the protective relay is to collect the voltage signal of the generator to control the on-off of the protective relay. It mainly has the following disadvantages: First, it need...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an intelligent starting protection system for a starter, which judges the state of the engine and controls the starting circuit by intelligently analyzing the voltage change of the system, and overcomes the defects of unsatisfactory starter protection performance in the prior art

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