Control method for RESS fan operation in a vehicle
AssigneeGM Global Technology Operations LLC
InventorsPeter Kilian, Remy Fontaine, Sebastain Lienkamp
Life of this patent
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Abstract
A method of controlling the ventilation system for an energy source in a fuel cell vehicle is disclosed, which includes an HVAC system, a fluid reserve, and a rechargeable energy storage system (RESS), capable of controlling a temperature of the RESS to militate against damage to or a shortened life of the battery, while maximizing vehicle durability, efficiency, performance, and passenger comfort.
Claims17
A method for controlling the ventilation of a rechargeable energy storage system (RESS) in a vehicle, the method comprising the steps of:
- (a) providing a ventilation system having an HVAC system in fluid communication with a fluid reserve, wherein the fluid reserve is disposed between the HVAC system and the RESS and is in fluid communication with the HVAC system and a ventilator located at one end of the RESS, and the ventilator of the RESS is in fluid communication with a battery system having an outlet at an opposing end of the RESS;
- (b) determining a maximum noise output level of at least one vehicle component;
- (c) determining a ventilation requirement of the RESS;
- (d) controlling a flow rate of a fluid through a fluid transfer device disposed within the ventilator of the RESS for conveying the fluid from the reserve to the RESS as a function of the maximum noise output level and the ventilation requirement of the RESS;
- (e) determining a flow rate of the HVAC system and the flow rate of the fluid through the fluid transfer device;
- (f) restricting the flow rate of the fluid through the fluid transfer device such that it is less than or equal flow to the flow rate of the HVAC system;
- and
- (g) exhausting the fluid from the battery system when the fluid flows from the fluid reserve to the RESS.
A method for controlling the ventilation of a rechargeable energy storage system (RESS) in a vehicle, the method comprising the steps of:
- (a) providing a ventilation system having an HVAC system in fluid communication with a fluid reserve, wherein the fluid reserve is disposed between the HVAC system and the RESS and is in fluid communication with the HVAC system and a ventilator located at one end of the RESS, and the ventilator of the RESS is in fluid communication with a battery system having an outlet at an opposing end of the RESS;
- (b) determining a maximum noise output level of at least one vehicle component;
- (c) determining a ventilation requirement of the RESS;
- (d) controlling a flow rate of a fluid through a fluid transfer device disposed within the ventilator of the RESS for conveying the fluid from the reserve to the RESS as a function of the maximum noise output level and the ventilation requirement of the RESS;
- (e) determining a flow rate of the HVAC system and the flow rate of the fluid through the fluid transfer device;
- (f) regulating the flow rate of the HVAC system to the flow rate of the fluid through the fluid transfer device such that it is less than or equal to the flow rate of the HVAC system;
- and
- (g) exhausting the fluid from the battery system when the fluid flows from the fluid reserve to the RESS.
A system for controlling the ventilation of a rechargeable energy storage system (RESS) in a vehicle, the system comprising:
- an RESS including a ventilator having an inlet at one end and a battery system having an outlet at an opposing end;
- a maximum noise output calculating unit in electrical communication with at least one vehicle component;
- and
- a fluid transfer device control unit for controlling a fluid transfer device, the fluid transfer device control unit in electrical communication with the maximum noise output calculating unit and the RESS, wherein the fluid transfer device control unit is configured to restrict a flow rate of a fluid through the fluid transfer device such that it is less than or equal to a flow rate of the HVAC system and exhaust the fluid from the battery system when the fluid flows from the inlet of the ventilator of the RESS to the outlet of the battery system of the RESS.
Dependencies are inferred from the claim text.