Internal-combustion engine cooling system based on integrative permanent magnet synchronous motor water pump and electronic speed regulation technology

Abstract

The invention discloses an internal-combustion engine cooling system based on an integrative permanent magnet synchronous motor water pump and an electronic speed regulation technology, belonging to the (electronic control) technical field of internal-combustion engine. The internal-combustion engine cooling system can be used for small water-cooled internal-combustion engine cooling systems and can be used for cooling other mechanical, electronic and electrical equipment. The purpose of the invention is to bring simple system, improve cooling control performance and temperature control precision, lower power consumption and obviously improve reliability and practicality. The internal-combustion engine cooling system is characterized in that the internal-combustion engine cooling system comprises a single circulation path cooling circulation system; a permanent magnet rotor operating in a water pump case forms an integrative permanent magnet synchronous motor water pump; the permanent magnet synchronous motor water pump, a temperature sensor and an electronic speed regulation driving circuit form an automatic cooling control system which can realize required temperature-water pump flow characteristic and engine body temperature-heat dissipating characteristics and can keep the engine body temperature stable.

Description

technical field [0001] The invention relates to an internal combustion engine cooling system based on an integrated permanent magnet synchronous motor water pump and electronic speed regulation technology, which belongs to the technical field of (motor vehicle) internal combustion engine (electric control) or automatic control device, and can be used for cooling small water-cooled internal combustion engines The system can also be used for cooling systems of other mechanical, electronic or electrical equipment (or their components). Background technique [0002] The internal combustion engine cooling system is mainly divided into water cooling system or air cooling system. Small internal combustion engines such as motorcycle internal combustion engines also use an oil cooling system similar in principle to the water cooling system. With the advancement of technology and the improvement of environmental protection and energy saving standards, modern internal combustion engine...

AI Technical Summary

Problems solved by technology

Compared with the mechanical thermostat, the sensitivity of the electronic thermostat is slightly improved, but it does not substantially improve the performance of the cooling system, but makes the cooling system more complicated

The electric water pump and the electronically controlled cooling system will greatly improve the performance of the cooling system, but the electric water pump with the existing structure adopts the structure of the ordinary electric water pump in order to ensure the performance of the motor. Transmission, there are dynamic sealing parts on the shaft, so not only the cost is high but also the reliability is reduced. At present, it is only reported to be applied to a high-end engine of BMW (it is also reported that other new models that will be put into production in the next few years, such as Toyota, will also be used. Cooling system with electric water pump)

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