Thermal Management System for Electrified Vehicle

A vehicle thermal management system including a cabin thermal loop, a battery thermal loop, a parallel valve assembly, and a controller is provided. The cabin thermal loop may include a first chiller. The battery thermal loop may include a second chiller and a high-voltage (HV) battery. The parallel valve assembly selectively may link the thermal loops. The controller may be programmed to, responsive to detection of a high load condition, command the parallel valve assembly to link the thermal loops such that the chillers operate together to cool a vehicle cabin and the HV battery. The parallel valve assembly may include a three-way valve and a conduit system selectively connecting the chillers, the three-way valve, and the HV battery.