Transport refrigeration system with battery temperature control
AssigneeCarrier Corporation
InventorXu She
Life of this patent
Estimating the term…
Abstract
A transport refrigeration system includes a compressor, condenser and evaporator configured to circulate a refrigerant; a motor configured to drive the compressor; a battery and power electronics configured to power the motor; an ambient air temperature sensor configured to monitor ambient air at the battery; a cooling unit configured to cool the power electronics; a controller, wherein the controller is configured to: receive an ambient air temperature of the compartment housing the battery; compare the ambient air temperature to a temperature threshold; and based at least in part on the comparing the ambient air temperature to the temperature threshold, performing at least one of (i) modify a cooling rate of the cooling unit and (ii) modify an operating parameter of the power electronics.
Claims12
A transport refrigeration system comprising:
- a compressor, condenser and evaporator configured to circulate a refrigerant;
- a motor configured to drive the compressor;
- a battery and power electronics configured to power the motor;
- an ambient air temperature sensor configured to monitor ambient air at the battery;
- a cooling unit configured to cool the power electronics;
- a controller, wherein the controller is configured to:
- receive an ambient air temperature at the battery;
- compare the ambient air temperature to a temperature threshold;
- and
- based at least in part on the comparing the ambient air temperature to the temperature threshold, modifying an operating parameter of the power electronics, wherein the modifying the operating parameter of the power electronics includes increasing heat generated by the power electronics.
A transport refrigeration system comprising:
- a compressor, condenser and evaporator configured to circulate a refrigerant;
- a motor configured to drive the compressor;
- a battery and power electronics configured to power the motor;
- an ambient air temperature sensor configured to monitor ambient air at the battery;
- a cooling unit configured to cool the power electronics;
- a controller, wherein the controller is configured to:
- receive an ambient air temperature at the battery;
- compare the ambient air temperature to a temperature threshold;
- and
- based at least in part on the comparing the ambient air temperature to the temperature threshold, modifying an operating parameter of the power electronics, wherein modifying the operating parameter of the power electronics includes terminating the modifying the operating parameter of the power electronics when a temperature of the power electronics exceeds a limit.
A method for controlling temperature of a battery, the battery configured to provide power to a motor using power electronics, the method comprising:
- receiving an ambient air temperature at the battery;
- comparing the ambient air temperature to a temperature threshold;
- and
- based at least in part on comparing the ambient air temperature to a temperature threshold, modifying an operating parameter of power electronics, wherein the modifying the operating parameter of the power electronics includes increasing heat generated by the power electronics.
A method for controlling temperature of a battery, the battery configured to provide power to a motor using power electronics, the method comprising:
- receiving an ambient air temperature at the battery;
- comparing the ambient air temperature to a temperature threshold;
- and
- based at least in part on comparing the ambient air temperature to a temperature threshold, modifying an operating parameter of power electronics, wherein the modifying the operating parameter of the power electronics includes terminating the modifying the operating parameter of the power electronics when a temperature of the power electronics exceeds a limit.
A transport refrigeration system comprising:
- a compressor, condenser and evaporator configured to circulate a refrigerant;
- a motor configured to drive the compressor;
- a battery and power electronics configured to power the motor;
- an ambient air temperature sensor configured to monitor ambient air at the battery;
- a controller, wherein the controller is configured to:
- receive an ambient air temperature at the battery;
- compare the ambient air temperature to a temperature threshold;
- and
- based at least in part on the comparing the ambient air temperature to the temperature threshold, modifying an operating parameter of the power electronics, wherein the modifying the operating parameter of the power electronics includes increasing heat generated by the power electronics.
Dependencies are inferred from the claim text.