| abstract |
The invention discloses a vehicle thermal management system for a hybrid vehicle, comprising an expander, a heat exchanger, a condenser, a water tank, a pump, a battery pack heat exchanger, a motor radiator, an engine cooling water jacket, and an engine exhaust heat exchange In the thermal management circuit, by controlling the valve on-off and valve opening, different system operation modes can be adjusted, realizing the series/parallel connection of the electrical system and the thermal management branch of the engine system to meet the heat dissipation requirements and preheating. requirements, and realize the flow regulation of each branch to meet the thermal management requirements of hybrid vehicles under different driving conditions. The invention uses the expander, the condenser and the heat exchanger at the same time to realize the recovery and utilization of waste heat, wherein the heat exchanger is connected with the air conditioner/heat pump system to realize the additional thermal management of the power system by the air conditioner/heat pump system. The whole system has a high degree of integration, occupies less space, and is suitable for a wide range of working conditions, which can effectively improve the energy utilization efficiency of the whole vehicle. |