New energy vehicle electronic water pump, control system and method

Abstract

The invention discloses a new energy automobile electronic water pump and a control system and method. An upper shell, a middle shell and a lower shell which are detachable in a sealed manner are arranged. The upper shell and the middle shell are internally provided with ceramic rotor center shafts, a fixed cover cap and an upper shaft seat are arranged at the upper end, the lower end is fixed to the middle shell, a rotating ceramic shaft sleeve is arranged on the periphery, and the ceramic shaft sleeve, an impeller body and an impeller cover are manufactured into a whole; a rotor is formed by a ferrite magnet and a steel plate which are integrated, and is fixed to the lower plane of the impeller body; a stator and a control part are arranged in the middle shell and the lower shell; a motor driver formed by an MOS tube, a single-chip microcomputer, a fault detection part, a communication module connected with an automobile water pump controller and the like are arranged; and a starting and malfunction interrupt service and sine wave control method is provided; and the problems that a brush motor is high in energy consumption and low in efficiency are solved, structural water prevention is good, the pump is small and light and convenient to maintain, due to the cover cap, the water noise is low, and sine waves are used for driving. During running, no torque pulsation exists, the noise is low, the control method is simple and accurate, faults of temperature, voltage, current, idling, rotation blockage and the like are monitored and overcome in real time, and the aim that the water pump can still run at the higher temperature is achieved.

Description

[0001] (1) Technical field: The present invention relates to an electronic water pump for automobile engines, which is used for cooling automobile engines. It belongs to engine cooling type (F01P), non-variable pump type (F04D). (2) Background technology [0002] With the rapid development of the automobile industry, automobiles have entered thousands of households, and people's demand for automobiles is also increasing day by day, leading automobile manufacturers to continuously improve the performance of automobile parts and components, hoping that their products can better meet customer requirements, among which It is particularly important to realize the improvement of the electronic water pump for cooling the heating parts of the car. [0003] The electric motor of the traditional automobile engine electronic water pump is a brush-type commutated DC motor. The stator of the motor is a permanent magnet, and the rotor is an energized winding. However, the rotor winding of ...

AI Technical Summary

Problems solved by technology

The second purpose is to solve the safety problems such as water leakage and other problems in the existing brushless motor electronic water pump structure

The third purpose is to solve the existing brushless motor electronic water pumps that have torque pulsation, loud noise, and no comprehensive fault monitoring, alarm and other facilities, which bring safety hazards to the car.

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