Another patent application by Porsche
Even in the previous blogI wrote about the patent that Porsche applied forHowever, about the contents of Porsche's patent application this time as well.
This patent was published at the end of May 2022, and its title is "Vehicle having a hybrid drive".
Well, I can't understand the contents of the application just from the title (laughs).
So, I would like to take a quick look at the contents. The content of this patent application by Porsche is believed to address the issue of battery cooling.
Battery cooling method that does not require an additional cooling device
To summarize briefly, the structure wants to use the pressurized air from the engine's (preferably electric) turbocharger to cool the battery of a hybrid car.
To explain this structure, layout details up to where to place each battery cell in the engine are also explained.
The boosted air gives additional pressure to the intake side of the engine and seems to have a structure that draws heat from the battery. As a comment, there is a description that "this pressurized air may be a little warm (heated somewhat)", but there is no particular mention.
Since the title of the patent application is "Vehicles with Hybrid Drive", Porsche seems to want to reduce the weight and complexity of battery cooling with this structure in the hybrid model.
The structure doesn't seem to be very simple, first the outside air is compressed by either a turbocharger or an electric supercharger, and then to an auxiliary booster.
This is referred to as "blower, pump, compressor or the like" and maybe these are cooling air to the engine at slow speeds when using a turbocharger. Isn't it to supply?
In other words, if the battery is still hot but there isn't enough airflow from the turbo to cool it, the system will start to provide a little more air. * If you are using an electric compressor instead of a normal turbo, this operation may not be possible.
Now then, continuing with this structure, the air then passes through the intercooler before reaching the heating element. This seems to be used to heat the intake air to adjust the battery on cold days.
After that, the air reaches the battery ... but at that time, the bypass valve is waiting. If you don't need to cool the battery cell here, it seems to bypass the battery and connect directly to the engine.
This valve is also like a thermostat (which regulates temperature) and can be used to maintain the ideal battery temperature by opening and closing.
After this, the air finally reaches the engine, but the bypass valve #2 is waiting there again.
This is used when you don't want to exhaust the heat of the battery to the air intake ... but you want to exhaust it from the car, and this valve #2 is used when the car is stopped (throttle is off). Seems to be considered.
This patent shows that this structure allows heat to be released directly into the atmosphere or through an exhaust system.
Anyway, Porsche basically enhances the parts already installed in the car to realize an effective battery cooling solution without using special additional cooling system (including liquid cooling etc.?). It is believed that you are trying.
I'm sorry, I don't really understand the detailed structure of the car in the first place, so I'm sorry if I made a mistake & I'm sorry for the confusing explanation.
Below this, the contents of the original Porsche patent application can be downloaded as a PDF, so please check there if you are interested ^ ^
Click here to download the patent application details (English) ↓
Source:Porsche Wants to Cool its Hybrids' Batteries With Electric Turbos
I'm Rika, the author of this article. Ever since Porsche 911 became my favorite car, I've become totally addicted to Porsche, and I can't stop loving Porsche, so I started this blog. My favorite cars are 911 Carrera (991.2), 911 Carrera Cabriolet (992.1), and 911 Carrera T (992.1).
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