Power interruption device for motorcycle falling

Abstract

The invention relates to a power interruption device for motorcycle falling, which comprises a switch circuit arranged between a power supply end and an engine control unit of a motorcycle and a falling sensor arranged between the power supply end and the switch circuit. The falling sensor comprises a falling sensing circuit, an abnormal voltage checking circuit and an inverse voltage protection circuit for the falling sensing circuit, wherein the falling sensing circuit and the abnormal voltage checking circuit are respectively matched with a delay circuit; the falling sensing circuit outputs a falling signal to the switch circuit when the motorcycle falls down, so that the switch circuit shuts down the engine control unit; and the abnormal voltage checking circuit outputs an abnormal voltage signal to the switch circuit when the power supply end supplies abnormal voltage, so that the switch circuit shuts down the engine control unit. Therefore, the reliability and the safety of motorcycle riding are improved, and the engine control unit is prevented from being damaged due to abnormal voltage.

Description

technical field [0001] The present invention relates to a power-off device that works when a motorcycle is dumped, in particular to a dumping sensor for power-off of an engine control unit of a motorcycle, and to a dumping sensing circuit of the dumping sensor and the abnormal voltage detection circuit, and the reverse voltage protection circuit of the dumping sensing circuit. Background technique [0002] At present, most motorcycles use electronic injection engines, and use a set of engine control units (ECUs) to control the operation of the electronic injection engines, so that the fuel pumps of the electronic injection engines can pressurize the gasoline to the gasoline nozzles, and at the exact time It is injected into the cylinder for combustion, so no matter what angle the engine is placed, it will not affect its fuel supply status; however, when the motorcycle is in an accident or accidentally dumped, if the engine control unit cannot be turned off immediately, the m...

AI Technical Summary

Problems solved by technology

[0004] However, the dumping sensor of the above-mentioned traditional dumping power-cutting device is generally composed of a pendulum structure and an electronic detection circuit, so when the motorcycle is in a state of continuous cornering or turning at a large angle, it is easy to cause the pendulum The phenomenon that the structure oscillates violently in a short period of time leads to the misjudgment of the dumping sensor, which affects the reliability of riding a motorcycle; in addition, the above-mentioned engine control unit and dumping sensor generally need to rely on the motorcycle Therefore, when the power supply of the battery or generator at the power supply end is abnormal, it is easy to cause the engine control unit and dumping sensor to burn out, which will affect the durable service life of the engine control unit and dumping sensor, and at the same time affect Safety while riding a motorcycle

[0005] In addition, there are relatively advanced perception methods for motorcycle dumping. It can be seen that in Taiwan's new patent No. M360160, a static dumping power-off device for vehicles is disclosed. , a plurality of angle detection units will output tilt signals to the electronic control unit, so that the electronic control unit regulates the output control unit, and then cuts off the fuel pump, so that the fuel pump stops supplying fuel; but its disadvantage is that the angle The detection unit is respectively connected to the electronic control unit, and receives the electric energy supplied by the power supply end of the motorcycle together. When the power supply end is abnormal, it is also easy to cause the angle detection unit and the electronic control unit to burn out, thereby affecting The durable service life of the electronic control unit and the angle detection unit also affects the safety of riding a motorcycle, so it needs to be improved urgently

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