Intelligent CO2 automobile thermal management system and method controlled by functional integrated structure module

Abstract

The invention discloses an intelligent CO2 automobile thermal management system and method controlled by a functional integrated structure module. The system comprises a front-end module, a water treatment module, a CO2 treatment module and an HVAC module, the front-end module comprises a heat exchanger for dissipating heat to the environment and is used for dissipating heat to the environment; the water treatment module is connected with the front-end module and the CO2 treatment module and is used for performing water-cooling heat dissipation on the battery and the inverter; the HVAC module comprises an in-vehicle temperature and humidity processing part; and the HVAC module is connected with the CO2 treatment module and used for controlling the temperature and humidity in the vehicle, and the CO2 treatment module is used for providing a cold source for the water treatment module and the HVAC module. Through modular setting, each module is provided with a standard interface, and the modules are connected through the standard interfaces; according to the invention, through modular arrangement, arrangement and maintenance of each module can be facilitated; and refined heat management is achieved, the system is dynamically operated in the most energy-saving mode all the time, the system reliability is improved, and the NVH management difficulty is reduced.

Description

technical field [0001] The invention belongs to the field of heat pump air conditioners and thermal management of new energy vehicles, and in particular relates to a functional integrated structure module control intelligent CO 2 Automotive thermal management system and method thereof. Background technique [0002] New energy vehicles have become a national strategy that shoulders multiple historical missions such as future travel, industrial development, energy security, and air quality improvement. Its industry development is also facing the reality of fierce market competition, insufficient development motivation, shortage of technical reserves, and unsound industrial chains. question. [0003] Freon working fluids currently widely used in new energy vehicles have a strong greenhouse effect, and transcritical CO 2 The thermal management system of circulation is of great significance to the emission reduction of gases with strong temperature effect, and it is also an imp...

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Problems solved by technology

[0004] However, new energy vehicles are currently facing bottlenecks such as low-temperature endurance attenuation and high-temperature endurance attenuation. The main reason is that the low-temperature heating capacity of traditional Freon working fluids attenuates, and PTC heating still needs to be assisted. The energy utilization efficiency is low, resulting in low-temperature attenuation; In addition, the thermal management of the motor, battery, and electronic control is scattered, with many influencing parameters and complex dependent variables. Traditional control methods are not only difficult to maintain the fine management of the temperature of the motor, battery, and electronic control at all times, but also difficult to ensure the energy utilization efficiency of the integrated system.

[0005] In addition, compared with the traditional automotive air-conditioning system, the thermal management system of new energy vehicles is becoming more and more complex and the number of components is increasing. The traditional method relies on the scattered arrangement of components at the front of the vehicle, which not only leads to complex systems and increased maintenance costs, It also reduces system reliability and poses challenges to NVH

[0006] Facing the problems of low-temperature battery life decay and high-temperature battery life decay of new energy vehicles, as well as the needs for refined thermal management and environmental protection of working fluids, there is currently no complete technical solution to solve the above problems, and it is only partially realized through a single system layout. thermal management requirements

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