Systems and methods for managing multiple vehicle cabin heat sources and multiple controllers
AssigneePhoenix Motor, Inc.
InventorsJames HARPER, Kevin RODDEN, Scott HALL
Life of this patent
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Abstract
Systems and methods of controlling temperature in a cabin of an electric vehicle that has an HVAC system powered by a battery system and an auxiliary heating system. Upon determining, by a system controller, that a setpoint temperature is less than or equal to a sensed cabin temperature while operating in an HVAC electric heat state, an auxiliary heat state, or a maximum heat state, automatically transitioning to an off state from the HVAC electric heat state, the auxiliary heat state, or the maximum heat state.
Claims20
An electric vehicle, comprising:
- a body enclosing a cabin;
- a temperature management system comprising an HVAC system powered by a battery system of the electric vehicle and an auxiliary heating system, wherein a temperature in the cabin is regulated by the temperature management system;
- and
- a controller configured to:
- determine if a setpoint temperature is less than or equal to a sensed cabin temperature while operating (i) the HVAC system in an HVAC electric heat state, (ii) the auxiliary heating system in an auxiliary heat state, or (iii) a maximum heat state;
- and
- if the setpoint temperature is less than or equal to the sensed cabin temperature, then automatically transitioning to an off state from the HVAC electric heat state, the auxiliary heat state, or the maximum heat state.
A method of controlling temperature in a cabin of an electric vehicle with a temperature management system, the electric vehicle comprising an HVAC system powered by a battery system of the electric vehicle and an auxiliary heater, the method comprising:
- upon determining, by a system controller of the temperature management system, that a setpoint temperature is less than or equal to a sensed cabin temperature while operating in (i) an HVAC electric heat state, (ii) an auxiliary heat state, or (iii) a maximum heat state, automatically transitioning to an off state from the (i) HVAC electric heat state, (ii) the auxiliary heat state, or (iii) the maximum heat state.
A temperature management system for an electric vehicle, comprising:
- an HVAC system powered by a battery system of the electric vehicle;
- an auxiliary heating system;
- wherein the HVAC system and the auxiliary heating system are configured to condition air within a cabin of the electric vehicle;
- and
- a control unit configured to:
- determine if a setpoint temperature is less than or equal to a sensed cabin temperature while operating (i) the HVAC system in an HVAC electric heat state, (ii) the auxiliary heating system in an auxiliary heat state, or (iii) a maximum heat state;
- and
- upon determining that the setpoint temperature is less than or equal to the sensed cabin temperature, transitioning to an off state from the HVAC electric heat state, the auxiliary heat state, or the maximum heat state.
Dependencies are inferred from the claim text.