BigE
Well-Known Member
- First Name
- Eric
- Joined
- Nov 19, 2020
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- North Carolina
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- Rivian R1T, Honda S2000
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- #1
Ok, here's a question for our electricians and EE's? In Rivian's "Experience" postings, they stated that the RAN will have "charging rates of over 200kW initially and 300kW+ in the future".
Here's an article I found from Trucks.com ~2 years old. https://www.trucks.com/2019/05/07/rivian-truck-battery-patent-faster-charging/
"Electric truck and SUV startup Rivian filed a patent application for fast-charging electric vehicle batteries at different voltages using a switch mechanism. The technology could reduce the cost of electric vehicles and make high-speed charging systems easier to use.
The patent describes a configurable battery that when used in an electric vehicle can accept charging voltages of either 450 or 900 volts and use less expensive components. The system can manage a potential fault in a battery module without disconnecting the load, making it more reliable.
The technology described in Rivian’s patent application could provide several benefits, said Sam Abuelsamid, an analyst for Navigant Research. The technology would allow a switch to change the connection between two battery packs from parallel, a low-voltage charging system, to series, which allows for faster, higher voltage charging.
In its patent filing, Rivian says that an advantage to this system is allowing an increased charging rate without the need for components that are rated for larger currents. Abuelsamid said there could be benefits during vehicle operation as well.
“Having the ability to dynamically reconfigure the battery to provide more power could be significant when towing or carrying a heavy payload,” he said"
Would this be the hardware Rivian needs to later do an OTA and move to faster charging?
Here's an article I found from Trucks.com ~2 years old. https://www.trucks.com/2019/05/07/rivian-truck-battery-patent-faster-charging/
"Electric truck and SUV startup Rivian filed a patent application for fast-charging electric vehicle batteries at different voltages using a switch mechanism. The technology could reduce the cost of electric vehicles and make high-speed charging systems easier to use.
The patent describes a configurable battery that when used in an electric vehicle can accept charging voltages of either 450 or 900 volts and use less expensive components. The system can manage a potential fault in a battery module without disconnecting the load, making it more reliable.
The technology described in Rivian’s patent application could provide several benefits, said Sam Abuelsamid, an analyst for Navigant Research. The technology would allow a switch to change the connection between two battery packs from parallel, a low-voltage charging system, to series, which allows for faster, higher voltage charging.
In its patent filing, Rivian says that an advantage to this system is allowing an increased charging rate without the need for components that are rated for larger currents. Abuelsamid said there could be benefits during vehicle operation as well.
“Having the ability to dynamically reconfigure the battery to provide more power could be significant when towing or carrying a heavy payload,” he said"
Would this be the hardware Rivian needs to later do an OTA and move to faster charging?
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