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Effects of Electrically Pre-Heating Plug-in Hybrid Electric Vehicle Catalysts on High Power Cold Starts Vitesco Technologies
- Format:
- Book
- Conference/Event
- Author/Creator:
- Bargman, Ben, author.
- Conference Name:
- SAE WCX Digital Summit (2021-04-13 : Live Online, Pennsylvania, United States)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2021
- Summary:
- Plug-in Hybrid Electric Vehicles (PHEVs), except for seriesPHEVs, are typically built to provide a small fully electricdriving range when fully charged. However, their fully electricdriving power is limited to a fraction of the system power output.This means that during full electric operation there are somedriving maneuvers that can force the Internal Combustion Engine(ICE) to start in order to support the driver's power request.The first time this happens after an extended vehicle soak, theengine, and aftertreatment system, is cold and is demanded to gofrom an off state to a high speed and load state as quickly aspossible to support driver demand. This phenomenon is known as aHigh-Power Cold Start (HPCS). Thanks to the California Air ResourceBoard (CARB), and their published research regarding HPCS (SAE2018-01-0428), we now know that HPCS poses a unique real-worldemissions challenge that has not been fully covered by current testrequirements or addressed by all current production PHEVs. TheTechnology and Innovation team at Vitesco Technologies (VT)devised, implemented, and tested a unique potential solution tothis real-world problem; the effectiveness of pre-heating a blendedPHEV's aftertreatment system was evaluated for reducing HPCSconstituent emissions. This paper summarizes the process andmethodology of building and testing such a system as well as anindication of the potential efficacy of such a system
- Notes:
- Vendor supplied data
- Publisher Number:
- 2021-01-0572
- Access Restriction:
- Restricted for use by site license
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