Dual power source temperature control system
AssigneeDana Heavy Vehicle Systems Group, LLC
InventorDavid BERELS
Life of this patent
Estimating the term…
Abstract
Methods and systems for operating a portable temperature control system that may be powered via a vehicle’s traction battery or an AC power grid. In one example, a controller determines a presence or absence of AC power being input to the portable temperature controller and activates AC control circuitry if AC power is being input to the portable temperature controller. If AC power is not being input to the portable temperature controller, DC control circuitry may be activated.
Claims20
A portable temperature control system, comprising:
- a direct current to direct current (DC/DC) electric power converter;
- an alternating current to direct current (AC/DC) electric power converter;
- an electric machine mechanically coupled to a refrigerant compressor;
- and
- an inverter electrically coupled to the electric machine.
A method for a portable temperature control system, comprising:
- automatically electrically coupling an electric machine to a stationary alternating current (AC) power grid in response to the stationary AC electric power grid being electrically coupled to the portable temperature control system;
- and
- automatically electrically coupling the electric machine to a vehicle’s direct current (DC) electric power source in response to the stationary AC electric power grid not being electrically coupled to the portable temperature control system and the vehicle’s DC electric power source being electrically coupled to the portable temperature control system.
A portable temperature control system, comprising:
- a direct current to direct current (DC/DC) electric power converter;
- an alternating current to direct current (AC/DC) electric power converter;
- an electric machine mechanically coupled to a refrigerant compressor;
- an inverter;
- an inverter isolation circuit;
- an electric grid isolation circuit;
- and
- a controller configured to automatically close the electric grid isolation circuit to provide electric power to the electric machine via a stationary electric grid and electrically isolate output of the inverter from the electric machine in response to the stationary electric grid being electrically coupled to the portable temperature control system.
Dependencies are inferred from the claim text.