Intelligent thermal management system of hybrid electric vehicle and control method thereof
By designing an independent cooling circuit and cross-loop heat exchanger in hybrid electric vehicles, and combining it with the dynamic switching of the control valve group, active interactive preheating of the engine waste heat to the drive motor and battery pack is achieved. This solves the problems of long battery preheating time and low waste heat utilization rate in low-temperature environments, and improves the overall vehicle energy utilization efficiency and comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGXI UNIV
- Filing Date
- 2026-05-09
- Publication Date
- 2026-07-17
AI Technical Summary
Existing hybrid electric vehicle thermal management systems suffer from problems such as long battery preheating time, low engine waste heat utilization rate, and decreased heating efficiency ratio in low-temperature environments, lacking an active and intelligent heat allocation mechanism.
The design incorporates independent engine cooling circuits, drive motor cooling circuits, and battery pack cooling circuits, along with cross-loop heat exchangers and control valve groups. By real-time acquisition of temperature and startup sequence, the valve group switching is dynamically controlled to achieve interactive preheating and independent heat dissipation circulation of engine waste heat to the drive motor and battery pack.
It improves the utilization efficiency of engine waste heat, shortens battery preheating time, reduces power consumption, and enhances the energy utilization efficiency and driving comfort of the whole vehicle in low-temperature environments.
Smart Images
Figure CN122402206A_ABST