Oil pump controller

Abstract

The present invention discloses an oil pump controller which consists of a signal collecting circuit, a signal transformation circuit and a protective circuit and is characterized in that the signal transformation circuit consists of a gate drive circuit and an MOS pipe amplifying circuit, wherein, the signal collecting circuit obtains an oil pump start instruction and transports the oil pump start instruction to the gate drive circuit; the gate drive circuit transforms the oil pump start instruction and sends the oil pump start instruction to the MOS pipe amplifying circuit; the MOS pipe amplifying circuit amplifies the oil pump start instruction and generates a drive signal; the MOS pipe amplifying circuit is provided with a switch pipe, the drain electrode of which outputs the oil pumpstart instruction to the protective circuit. The oil pump controller is also provided with a temperature protective circuit, an overcurrent protective circuit and an non-load protective circuit. The oil pump controller has the obvious effects of reducing the cost, low heat, reducing surge current, increasing various kinds of safety protection measures and providing the oil pump safe operation with effective safeguard. The oil pump controller reduces ECU head dissipation load and improves ECU working efficiency.

Description

oil pump controller technical field The invention belongs to the technical field of motorcycles, in particular to an oil pump controller for motorcycles. Background technique There are currently two main driving modes for the oil pump control circuit on the EFI motorcycle: One is composed of a signal acquisition circuit, a signal shaping circuit and a protection circuit, wherein the signal acquisition circuit obtains the oil pump starting command output by the ECU and sends it to the signal shaping circuit, and the signal shaping circuit shapes the oil pump starting command and sends it to the protection circuit, the protection circuit Generally, a relay is used to achieve signal amplification, and the relay directly outputs a signal to drive the oil pump to work. Its disadvantages are: the surge current of the relay is relatively large, which is likely to cause damage to the oil pump circuit, and the life of the relay is short and the cost is high, which affects the rel...

AI Technical Summary

Problems solved by technology

Its disadvantages are: the surge current of the relay is large, which is easy to cause damage to the oil pump circuit, and the life of the relay is short and the cost is high, which affects the reliability of the entire oil pump control circuit

The second type of oil pump control circuit integrates the signal acquisition circuit and signal shaping circuit in the ECU, and the ECU outputs the shaped oil pump start command, and the semiconductor replaces the relay as a DC switch, and the output signal drives the oil pump to work. Compared with the first method, The reliability of the entire oil pump control circuit is improved, but its disadvantages are: the use of integrated chips in the ECU will occupy the computing space of the ECU, increase the heat dissipation burden of the ECU, reduce the working efficiency of the ECU, and the cost is high

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