Nikola Corporation

Akshit Markan

Aiden Cohan

Rachel Cook

Mitchell Shinn

Katherine Smith

Derek McVay

Behrooz Karimi

Namitha Anjaneyaswamy

Girish Barade

Brandon Dunn

Shervin Shoai Naini

Aris Papadopoulos

The present disclosure provides a method of managing thermal loads in the powertrain of an electric vehicle and controlling various electronic components of a powertrain thermal management system. The method may include heating a coolant of a powertrain coolant loop utilizing waste heat from a liquid-cooled powertrain component (e.g., an electric motor, a DC-DC converter, etc.), measuring a coolant temperature, and utilizing combined feedforward and feedback control methods for different components (pump(s), radiator fan(s), valve(s)) of the powertrain thermal management system.

Systems and methods for electric vehicle powertrain thermal management and control

A vehicle has a thermal management system that comprises an electric power source loop comprising at least one battery. The thermal management system further comprises a heating component thermally coupled to the electric power source loop. When an ambient temperature is less than a first threshold, the heating component pre-heats the at least one battery. In exemplary embodiments, the heating component includes at least one brake resistor that is coupled to the electric power source loop.

Thermal management systems and methods with heating component

The present disclosure provides a thermal management system for an electric vehicle. The electric vehicle may include a cabin, a battery system, a battery coolant loop including a battery coolant line thermally coupled to the battery system, a heat pump loop including a heat pump line thermally coupled to an internal heat exchanger, and a refrigerant-coolant heat exchanger thermally coupled to the battery coolant loop and the heat pump loop. The thermal management system may be configured to provide heating or cooling to the cabin or battery system depending on an operating mode.

Heat pump system for electric vehicle

An electric vehicle has a thermal management system that comprises a common radiator, a brake resistor loop, and an electric power source loop. The brake resistor loop comprises a brake resistor and a brake resistor controller that are coupled to the common radiator. The electric power source loop comprises an electric power source coupled to the common radiator. When the brake resistor loop is determined to be in operation, the common radiator is utilized by the brake resistor loop to absorb heat generated by the brake resistor loop. When the brake resistor loop is determined to not be in operation, the common radiator is utilized by the electric power source to absorb heat generated by the electric power source loop.

Vehicle thermal management systems and methods

The present disclosure provides a method of managing thermal loads in a fuel cell vehicle. The method may comprise heating a fuel cell coolant of a fuel cell coolant loop utilizing waste heat from a fuel cell to form a heated fuel cell coolant, heating a battery coolant of a battery coolant loop utilizing waste heat from a battery to form a heated battery coolant, heating a refrigerant of a battery refrigeration loop by exchanging heat with the heated battery coolant, and superheating the refrigerant of the battery refrigeration loop by exchanging heat with the heated fuel cell coolant.

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Phoenix, AZ, United States of America

Akshit Markan