AReCoS

Electric vehicles

An EV heat pump designed to keep heating in the cold without stopping to defrost.

We're developing an EV heat pump of our own, with an outdoor heat exchanger designed to stay ice-free (patent pending) and one embedded controller designed for the heat pump, cabin and battery, on the same platform as our all-season rooftop unit. We are targeting late summer 2027 for the first vehicle package. If you already have your own thermal system, we fit our controller to it under license.

Email info@arecos.net See how it works
AReCoS heat pump hardware and controller in an electric car An electric car in side view. At the front sits the AReCoS heat pump, with its outdoor heat exchanger, designed to stay ice-free, at the grille and joined to it by two refrigerant lines. The AReCoS controller above the car sends signals to the heat pump, the cabin and the fully charged battery under the floor. Warm and cool air blow into the cabin, and pipes link the heat pump to the cabin's HVAC module and to the battery. AReCoS controller Outdoor heat exchanger DESIGNED TO STAY ICE-FREE Cabin Battery Heat pump
Our heat pump and its outdoor heat exchanger at the grille, with one AReCoS embedded controller designed for the heat pump, cabin and battery.

How it works

Designed to set the whole thermal system together.

In cold weather, an electric vehicle's heat pump can frost its outdoor heat exchanger and have to stop to defrost, or fall back on the electric heater, which draws more from the battery. We designed the heat pump and its controller together so that neither has to happen.

One AReCoS controller, with or without a heat pump The AReCoS controller at the top is designed to run either of two heating and cooling systems for an electric car: one with a heat pump, or one with A/C and an electric heater. Each system sends warm or cool air to the cabin and runs a pipe to the battery. In this illustration the battery shows more charge left with the heat pump than with the electric heater. AReCoS controller With our heat pump OR A/C and electric heater CABIN BATTERY CABIN BATTERY
One AReCoS embedded controller, designed to run with our heat pump or with A/C and an electric heater. Battery levels are illustrative: a heat pump generally draws less from the battery than an electric heater.

Designed to stay ice-free

Designed with no defrost cycle to schedule, so cabin heating does not have to pause in the cold.

One controller

Designed to run a physics model of the vehicle's thermal system and set the compressor, valves, pumps, front-end fan, blower and heater together, for cabin comfort and battery temperature, instead of loop by loop.

One architecture across your lineup

The same control architecture is designed for vehicles with our heat pump and for vehicles with A/C and an electric heater.

Work with us

Two ways to work with vehicle programs.

Our heat pump and controller

One package for vehicle programs: the heat pump we're developing, and our controller designed to run it with the cabin and battery.

Heat pump · Controller

A controller for your own system

Already have your own heat pump, or A/C with a heater? We fit our controller to your cabin and battery thermal systems, and you ship it in your vehicles under license.

Fitted to your system · License

Let's talk.

Tell us about your vehicle program and its thermal system.

Email info@arecos.net
625 Kenmoor Ave SE, Suite 350
Grand Rapids, Michigan 49546