GM confirmed Monday that it plans to incorporate heat-pump technology into its current and upcoming Ultimate-Platform electric vehicles.
These include the now-supplied Hummer EV and the soon-to-be-released Cadillac Lyric, and many more to come in the next few years. Among them, the technology will help recover low-level waste heat in a way that can be added in a meaningful way আসে bringing them faster acceleration, faster charging, and longer range.
The system is based around an automatic-grade heat pump that dissipates and recovers heat. Similar to systems used by other automakers such as Tesla (or Toyota, with the figure below), the GM EV uses a compressor-and-evaporator component system and a specially selected refrigerant that undergoes a phase change. When released from a gas, it pays a physiological response to the release of energy – which can kill it along the way to expand some energy.
Toyota Prius Prime Hit Pump
This extra cabin could lead to heating, low-level electrical function, or even pre-conditioning of the battery সম্ভাব potentially extending the range up to 10%.
According to Tim Gravey, GM director of electrification, the Ultimate platform was conceived from the beginning as a building-block strategy that allowed small consumer EVs such as the Chevy Blazer EV (and Equinox EV) to run in large commercial vans. GM claims that it can help speed up charging and acceleration and increase range.
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The ultium platform technique is quite different from the current Bolt EV heating system, the executives explained, because it uses the heat-pump system as a means of integration and simplifies the rest of the system.
The heat pump does not add mass এমনকি even comparing the larger Ultium model with the Bolt EV-confirmed project manager Lawrence Zihr for the system. “This is a smart way to connect systems.”
Instead of adding more cooling circuits, as was done in the Bolt EV, you can use the drive unit as a cooler for the battery and “don’t be enslaved by the ambient temperature,” as Grave says. The Ultium car has a resistive coolant heater, opposite the two bolt EVs, and it also eliminates the need for a separate A / C compressor.
Ultimate EV Platform – GMC Hummer EV
Grew suggests that maintaining a real-world efficiency is a strength of the system. The system really shines when “the balance of passenger comfort is maintained in a non-EPA cycle – like a 45-degree high-humidity day where you have to dehumidify and then heat up.” With Bolt EV, in similar situations, one component set cools the air for dehumidification, then the other for heating.
For a more exciting example, in the Hummer Ivy Waters to Freedom Performance launch mode, the GMK motor magnet needs to be cooled as much as possible, while this requires heating the battery with an oil-to-liquid heat exchanger.
GM has modified the design to operate in extreme cold — in the range of 30 সেল C – the process can run at that temperature by slightly heating the pump.
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In all these questions, it is like a game with strength and strength out. By being able to absorb the energy emitted in the dehumidification and use it for direct heating, Gray says you could potentially get 4-6 kwh from the system for 1 kilowatt hour. For resistant heat, the best possible payout would be around 1 kwh return for every 1 kwh.
It’s a multi-faceted effort that Tesla যদিও although it talked about heat pumps in its cars a few years ago এখনও still came close.
The design of the heat-pump for GM serves as a prerequisite for the battery pack — usually DC warming it up before fast-charging. Owners will be able to manually select battery pre-conditioning or the car will do so automatically if the GM navigation app or the vehicle has a fast charging destination set on Google Maps. Typically, the temperature so quickly hits the maximum charge rate. Conversely, to do this it does not necessarily burn through the battery charge. Grew explains that with this system, much of the prerequisite energy comes only from the drive-unit waste energy.
Heat from one place, transferred to another place কিছু some of these are the magic of physics. That could make a big difference.