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/* Introduction */
{{TOCrightEx}}
== Introduction ==
Transportation accounts for 41% of the sources of global warming. Electric vehicles can help dramatically reduce the production of greenhouse gases. Battery systems are the key to the success of electric vehicle technology.
This report describes the technology and patenting trends related to the battery systems used in hybrid vehicles. It also describes in detail the various technical challenges faced by designers of these batteries and the innovative solutions proposed for them. The report also covers the techniques used by Nissan and Toyota's vehicles in this domain.
== Rationale ==
[[image:globalwarming.jpg|thumb|right|220px|Global warming emissions by sector]]
== New Developments ==
The new millennium is bringing a millennial change to the family car. A few years back, the key concerns were:
When overcharge is detected, power generation is controlled/cut-off and when over discharge is detected, power supply to electric motor is stopped. Detection is achieved by appropriate sensors.
'''''This report investigates various procedures available/adopted by various assignees in order to maintain balanced battery pack by avoiding overcharge and/or over discharge.
'''''
|-
! Lead Acid !! Advanced Lead Acid !! Nickel-Metal Hydride
| Can be ruined by completely discharging them || ||
|}
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== HEV battery system concerns ==
=== IPMap ===
[[Image:hev_ipmap.jpg|800px]]
== Clustering - Technology focus ==
== Technology approach ==
=== Competitor's Major Players ===
In technology approach patent and non-patent literature is used to extract information about the technology profile of various assignees such as
* '''Battery charging system''': The charge to the DC-battery is provided from the power generated by the generator and the regeneration power from the drive motor at the time of braking.
* '''Approach1First approach:'''
[[Image:Toyota.jpg]]
* '''Approach2Second approach:'''
[[Image:Toyota2.jpg|thumb|center|1000px|Toyota Motors - Technology Approach2]]
The battery is charged from the power generated by the generator and regeneration power from a motor.Electric motor functions as a generator to charge the battery when a hybrid vehicle is restarted after an idling stop released.
* '''Approach1First approach:'''
[[Image:Nissan1.jpg|thumb|center|1000px|Nissan Motors - Technology Approach1]]
* '''Approach2Second approach:'''
[[Image:Nissan2.jpg|thumb|center|1000px|Nissan Motors - Technology Approach2]]
* Proposed a novel charge/discharge control system based on car navigation information.
{{btot}}
==<span style="color:#C41E3A">Like this report?</span>==
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|style="background:lightgrey" align = "center" colspan = "3"|'''[mailto:info@dolcera.com <span style="color:#0047AB">Buy the customized report from Dolcera</span>]'''
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<br>
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