Overpressure-preventing puncture-type forklift fuel consumption detecting system

Abstract

The invention discloses an overpressure-preventing puncture-type forklift fuel consumption detecting system which has the advantages of simple structure, safety and reliability. Compare with the prior art, a positive pole of a vehicle-mounted power supply E1 is connected to a fuel consumption detector A through a positive diode D2 and a self-recovery fuse wire F2 which are connected in series, and a negative pole of the vehicle-mounted power supply E1 is connected to the fuel consumption detector A through a negative diode D1 and a self-recovery fuse wire F1 which are connected in series; a singlechip U1 is arranged, the singlechip U1 is respectively connected to a positive pole of the negative diode D1 and a negative pole of the positive diode D2 through a photoelectric coupler U2, an output of the singlechip U1 is connected to a base electrode of an audion Q2 through a resistor R2, an emitting electrode of the audion Q2 is grounded, a collector electrode of the audion Q2 is connected to a standby power E2 through a field-effect tube Q1, a positive pole of the standby power E2 is connected to the fuel consumption detector A through the field-effect tube Q1, and a negative pole of the standby power E2 is directly connected to the fuel consumption detector A.

Description

technical field [0001] The invention relates to a fuel consumption detection system of a forklift, in particular to a fuel consumption detection system of a forklift with a simple structure, safety and reliability, and an anti-overvoltage breakdown type. Background technique [0002] At present, there are two methods for detecting the fuel consumption of motor vehicles: one is to detect the speed through the GPS locator, and calculate the fuel consumption with the speed as a variable. This method cannot accurately reflect the actual fuel consumption of the motor vehicle; the other is to directly use the fuel tank The oil quantity detection device obtains the fuel quantity information of the vehicle, and then counts and calculates the fuel consumption by a computer, etc. Compared with the first detection method, the accuracy is improved. Existing motor vehicle fuel tank fuel quantity detection devices (also known as fuel consumption detectors) have various structural forms, b...

AI Technical Summary

Problems solved by technology

Due to the harsh working environment of industrial forklifts (frequently moving forward, backward, lifting and lowering), the number of revolutions of the engine, the workload, the regulation voltage of the generator, etc. are constantly changing, especially the connection and disconnection of some inductive loads. The vehicle power supply is overloaded with high voltage, which can cause devastating damage such as overvoltage breakdown to the fuel consumption detection device

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