Intelligent new energy vehicle whole vehicle heat management system

Abstract

The invention discloses an intelligent new energy vehicle whole vehicle heat management system and belongs to the technical field of new energy electric vehicles. The problems that a traditional electric vehicle heat management system is unreasonable in design, limited in function, poor in cooling effect, large in occupied space and large in energy dissipation are solved. The intelligent new energy vehicle whole vehicle heat management system mainly comprises a battery heat management subsystem, a motor heat management subsystem and an ECU controller. The energy utilization rate is very high, the energy saving effect is very obvious, the system design concept is ingenious, the structure design is simple and feasible, realization is easy, purchasing cost of main engine plants is effectively reduced, the economic and social benefits are greatly increased, high practicability is achieved, and important significance is achieved for development of new energy electric vehicles in our country.

Description

technical field [0001] The invention belongs to the technical field of new energy electric vehicles, and in particular relates to an intelligent new energy vehicle thermal management system. Background technique [0002] my country has become the world's largest automobile production and consumption country. In 2016, the production and sales of automobiles exceeded 28 million. However, with the increasingly serious problem of environmental pollution, reducing dependence on fossil energy has become the development trend of the international automobile industry and environmental protection industry. As an important part of the development of alternative energy and the construction of a sustainable low-carbon society, new energy vehicles have attracted more and more attention from all countries in the world. my country has officially listed new energy vehicles as one of the seven strategic industries. [0003] Batteries and motors are the main powertrains of new energy vehicle...

AI Technical Summary

Problems solved by technology

Therefore, if the heat dissipation of the powertrain is not timely, there will be a great potential safety hazard.

At present, the design of the motor and battery thermal management system of new energy electric vehicles is unreasonable. With the development of fast charging technology, the battery dissipates a lot of heat, and the air-conditioning system "cold air" to cool the battery can no longer meet the battery cooling requirements; although a small number of companies are also trying to develop thermal management systems with better cooling effects, However, its system design is complex and its implementation cost is high, so it is difficult to be popularized; 2. In the cold winter or when the ambient temperature is relatively low, the battery of new energy electric vehicles cannot be discharged, that is to say, the battery cannot be discharged under low temperature conditions. The drive motor works normally; 3. The motor cooling and battery cooling of traditional new energy electric vehicles are independently installed on the vehicle frame. The design of the independent thermal management system takes up a lot of space, and the manufacturing cost is high. The effect is relatively poor

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