Vehicle thermal management system
By switching the heat transfer medium circuit connection method in the vehicle thermal management system, the problem of unusable battery waste heat at low temperatures is solved, achieving effective heating at low temperatures and sufficient cooling at high temperatures, thus reducing energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- MAZDA MOTOR CORP
- Filing Date
- 2025-12-31
- Publication Date
- 2026-07-17
AI Technical Summary
When the temperature regulation circuit of the drive unit is connected in series with the temperature regulation circuit of the battery at low temperatures, the coolant absorbs heat in the drive unit, which makes it impossible to effectively utilize the waste heat of the battery and increases the power consumption required for heating.
In vehicle thermal management systems, different heat transfer medium circuit connection methods are switched by the control unit to prevent the coolant from absorbing heat when the drive unit temperature is low, utilize the refrigerant circuit to absorb waste heat from the battery for heating, and ensure sufficient cooling capacity when the drive unit temperature is high.
By effectively utilizing the waste heat of the battery for heating, the power consumption required for heating is reduced, and sufficient cooling is provided when the drive unit is at a suitable temperature, thereby reducing overall energy consumption.
Smart Images
Figure CN122402167A_ABST