Automotive electronic water pump controller with multiple interfaces

Abstract

The invention discloses an automobile electronic water pump controller with multiple interfaces and relates to an electronic water pump for an automobile. The automobile electronic water pump controller comprises an embedded microprocessor, a motor driver and a parameter detection circuit, wherein the embedded microprocessor is connected with an electric control unit (ECU) or bus of the automobile through a communication interface module and is used for receiving a rotating speed control signal transmitted from the ECU; the communication interface is one of pulse width modulation (PWM), LIN and controller area network (CAN); the input end of the motor driver is connected with the embedded microprocessor, and the output end of the motor driver is connected with the motor; the motor driver is used for driving the motor to work under control of the embedded microprocessor; the parameter detection circuit comprises at least one detection circuit for voltage, current, temperature and rotating speed signal; the signal output end of the parameter detection circuit is connected with the embedded microprocessor; and the parameter detection circuit is used for acquiring working parameters of the motor. The automobile electronic water pump controller is high in universality, the fault diagnosis requirements of the automobile electronic water pump can be met, and the reliability of an automobile cooling system is improved.

Description

technical field [0001] The invention relates to an electronic water pump for automobiles, in particular to an automobile electronic water pump controller with multiple interfaces. Background technique [0002] As the country pays more and more attention to energy saving, emission reduction and environmental protection, various automobile factories use turbocharging for traditional engines to increase power or adopt hybrid and pure electric drive methods to achieve energy saving and environmental protection. Accompanying is the cooling of the turbocharger and the heat dissipation of the electronic power device. In order to solve the problem of cooling and heat dissipation, the water cooling system is mainly used at present. Since the water cooling system needs to run continuously and the quality of the system operation is directly related to the normal operation of the core components of the car, a more advanced design is proposed for the core component of the water cooling s...

AI Technical Summary

Problems solved by technology

The traditional electronic water pump generally adopts the driving method of direct connection between the DC motor and the impeller or through the connection between the impeller and the magnetic coupler. The former will greatly shorten the service life of the water pump due to the existence of the water seal, and the latter will increase the production cost due to the complexity of the structure. volume increase etc.

[0003] In order to avoid the disadvantages of traditional electronic water pumps, the method of brushless DC motor drive is mainly used at present. The Chinese invention patent application "An Electronic Water Pump for Vehicles" with the publication number CN102297142A discloses an electronic water pump for automobiles, including a power part, a turbine, The stator part, the rotor part and the casing part, but the core controller part is not detailed

At present, the research results of brushless DC motor controllers are not aimed at automotive electronic water pumps, and its reliability is difficult to meet the requirements of automotive electronic products, especially the lack of fault diagnosis functions. When a fault occurs, the cooling system will fail. If it cannot be found in time And deal with it, it will bring a devastating disaster to the core components of the car

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