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The Future of Urban Mobility Connected, Autonomous,Electric and Wireless
Thomas WürzSr. Director EngineeringQUALCOMM CDMA Technologies GmbH12 April 2018
2Qualcomm Technologies, Inc.
Intelligent connectivity
Greaterautonomy
Increasing electrification
Sharingeconomy
Major Trends Influencing the Future of Automotive
3
Dynamic EV Charging (DEVC)
Semi-Dynamic EV Charging
Static EV Charging
Wireless charging
Energy & Environment
4Qualcomm Technologies, Inc.
Power Transfer Components
Vehicle controller
Power supply
AC‐DC converter/ power factorcorrection (PFC)
InverterTuning and matching Base bad /
Primary coil
Vehicle pad / Secondary coil
DC to DC converter
Vehicle battery
AC source 1 phase/3 phase
Tuning and rectifier
Primary side
Secondary side
5Qualcomm Technologies, Inc.
Static Charging System Specification
Maximum Input Power : 3.7/7.4/11 kWAlignment Tolerance X: ±75 mmAlignment Tolerance Y: ±100 mmZ-Gap: Z1 = 100-150 mm
Z2 = 140-210 mmZ3 = 170-250 mm
6Qualcomm Technologies, Inc.
Wireless Power Transfer Magnetics Simulation• B/H field simulation (ANSYS MAXWELL)
7Qualcomm Technologies, Inc.
DEVC System Design
DSRC
DSRCStub Stub
8Qualcomm Technologies, Inc.
DEVC System Power Flow
9Qualcomm Technologies, Inc.
Wireless Power Transfer Magnetics Simulation• DEVC track – Magnetic flux density (ANSYS MAXWELL)
10Qualcomm Technologies, Inc.
DEVC - System Specification
Maximum Power into Vehicle: 20 kWMaximum Speed: 120 km/hAlignment Tolerance Y: ±200 mm
11Qualcomm Technologies, Inc.
20 kW DEVC
12Qualcomm Technologies, Inc.
DEVC Primary Side Control
Vehicle Status
Stub StatusPrimary Side Status
Base Pad StatusInput Power
Output Power
13Qualcomm Technologies, Inc.
DEVC Special Design FeaturesBase Controller
Base pad needs to turn on and off in <50 ms at 120 km/h◦ Base pad automatically detects when vehicle is close◦ Base pad turns on to transfer power ◦ Base pad automatically turns off once vehicle leaves
Base pads act independently to cover many use cases
• Automatic base control for high speed
14Qualcomm Technologies, Inc.
DEVC Special Design Features: Magnetics
Multi-coil base pad magnetics are designed to always couple power along the track to minimize power variation
DD vehicle pad gives highest coupling for its size and Z-gap
Vehicle pad magnetics compatible with Qualcomm Halo™ static charging reference designs
• Multi-coil base pad magnetics with double D (DD) vehicle pad magnetics
15Qualcomm Technologies, Inc.
DEVC Trailer (https://www.qualcomm.com/videos/devc-an-invention-story)
16Qualcomm Technologies, Inc.
Communication in WEVC Systems
Static Charging• WiFi 802.11n: between base controller and vehicle controller Step 1: Qualcomm proprietary messaging Step 2: migration to ISO15118 conductive plus inductive modifications Step 3: adoption of full inductive ISO15118
• Bluetooth: between vehicle and smart phone• CAN: between vehicle and vehicle controller• Ethernet:/LTE: betwen base controller and infrastructure
DEVC• WiFi 802.11p (DSRC/WSMP): betweeen primary side and secondary side• CAN: between stubs• Ethernet: between roadside power supply cabinets and logging PC
17Qualcomm Technologies, Inc.
Standardization of Communication for Wireless Power Transfer
ISO15118 – 2: 2018 Road vehicles - Vehicle-to-Grid Communication Interface (not yet
published)
• Includes wireless power transfer
• Main objective is interoperability
• Avoid mistakes of DC Charging (CCS, CHaDeMo, Tesla, etc.) for second edition
• Agree on message catalog
SAE J2954 JSON messages for automatic control (published for SAE members only)
• Preliminary testing of WPT message catalog with various charging systems via
SAE JSON messages
18Qualcomm Technologies, Inc.
Qualcomm Halo – A Complete WEVC Solution
19Qualcomm Technologies, Inc.
Powering the next wave of electric cars
20
CES, EVS27, eCarTech
Follow us on:For more information, visit us at: www.qualcomm.com & www.qualcomm.com/blog
Nothing in these materials is an offer to sell or license any of the technology, components or devices referenced herein.
Qualcomm is a trademark of Qualcomm Incorporated, registered in the United States and other countries. Qualcomm Halo is a trademark of Qualcomm Incorporated. All Qualcomm Incorporated trademarks are used with permission. Other product and brand names may be trademarks or registered trademarks of their respective owners.
References in this presentation to “Qualcomm” may mean Qualcomm Incorporated, Qualcomm Technologies, Inc., and/or other subsidiaries or business units within the Qualcomm corporate structure, as applicable.
Qualcomm Incorporated includes Qualcomm’s licensing business, QTL, and the vast majority of its patent portfolio. Qualcomm Technologies, Inc., a wholly-owned subsidiary of Qualcomm Incorporated, operates, along with its subsidiaries, substantially all of Qualcomm’s engineering, research and development functions, and substantially all of its product and services businesses, including its semiconductor business, QCT.
Qualcomm Halo WEVC technology is licensed by Qualcomm Incorporated. Prototype charging systems, functional prototypes and reference designs are products of Qualcomm Technologies, Inc.
Thank you
© 2018 Qualcomm Technologies, Inc. All Rights Reserved.
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