Details page | Paper / Information search system

Search

Search help

Summary & Details

Cryptographic Authentication of Battery Pack for Electric Vehicles

Delivery: Provide download link

Format: PDF

Price: Non-members (tax incl.)：￥6,600 Members (tax incl.)：￥5,280

Paper/Info type: SAE Paper

No.2022-01-0168

Pages: 1-6(Total 6 p)

Date of publication: Mar 2022

Publisher: SAE International

Language: English

Event: WCX SAE World Congress Experience 2022

Detailed Information

Author(E)	1) Shyju Thekkumbadan, 2) Sreedhar Reddy Pacharla, 3) Jipin Jose
Affiliation(E)	1) Harman International India Pvt Ltd., 2) Harman International India Pvt Ltd., 3) Harman International India Pvt Ltd.
Abstract(E)	EV (Electric vehicles) are becoming more and more popular nowadays. According to ISO 26262, functional safety is defined as the “absence of unreasonable risk due to hazards caused by malfunctioning behavior of electrical/electronic systems”. Since electric vehicles are driven by a battery, a critical asset that needs to be protected to avoid malfunctioning behavior is the Vehicle Battery. A Hacker or attacker can intentionally manipulate/modify the information/signal coming from the battery to ECU; this is a huge risk for electric vehicle functionality and safety. A vehicle battery pack that is provided by the OEM, not only ensures the marginal power to be delivered to the ECU and the electric motor but is also designed with respect to the region it will operate in. For example, for the hot climatic region, proper safety measure is taken for overheating while designing the battery by the OEM. Thus, for a long-distance run, this risk and hazardous factor increase with respect to functional safety standards. Currently, there is no mechanism for securely protecting/authenticating the battery or battery information or battery charging authentication. This proposal discloses a way to authenticate the vehicle battery prior to use for the vehicle operator to ensure the protection of the critical asset. The ECU could also store the last battery data so that it could smartly detect any tempering happened in the battery by comparing the current data against it, which if the BMC fails to detect. It can be extended to authenticate every message request and transaction about battery data, both the party will validate the message tag/signature.

About search

How to use the search box

You can enter up to 5 search conditions. The number of search boxes can be increased or decreased with the "+" and "-" buttons on the right.

If you enter multiple words separated by spaces in one search box, the data that "contains all" of the entered words will be searched (AND search).

Example) X (space) Y → "X and Y (including)"

How to use "AND" and "OR" pull-down

If "AND" is specified, the "contains both" data of the phrase entered in the previous and next search boxes will be searched. If you specify "OR", the data that "contains" any of the words entered in the search boxes before and after is searched.

Example) X AND Y → "X and Y (including)" X OR Z → "X or Z (including)"

If AND and OR searches are mixed, OR search has priority.

Example) X AND Y OR Z → X AND (Y OR Z)

If AND search and multiple OR search are mixed, OR search has priority.

Example) W AND X OR Y OR Z → W AND (X OR Y OR Z)

How to use the search filters

Use the "search filters" when you want to narrow down the search results, such as when there are too many search results. If you check each item, the search results will be narrowed down to only the data that includes that item.

The number in "()" after each item is the number of data that includes that item.

Search tips

When searching by author name, enter the first and last name separated by a space, such as "Taro Jidosha".