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IOSiX, LLC● Formed in 2005
● Focused on compact, cost-effective dataloggers, vehicle interfaces, and custom devices
● Extensive hardware/software platform
● Quick turn-around IP leveraging
● Full automotive engineering capabilities to the vehicle subsystem level
● Extensive protocol suite
– SAE J1850 PWM/VPW
– ISO 9141-2/KWP
– ISO 15765-4
– SAE J1939 & J1708
● WiFi/Bluetooth/Zigbee/900MHz
● GSM/CDMA/Satellite
● GPS/RTK-GPS
● DC/DC power conversion & control, Lithium battery IP
● USB, microSD, FAT16/32
● Video/Audio capture & encoding
Current Method● 1 x J1962 connector
● 16 pins
● Vehicle interface hardware for every application
Upsides/Downsides● Inexpensive to implement (<$7 @ 1M)
● Backward compatibility to 1996
● Hundreds of devices on the market in thousands of applications
● Too many buses to put on J1962 connector
– 5+ CAN at various speeds
– 5+ ISO-K
– J1850 PWM/VPW, SCI, BEAN, single-wire CAN
● Conflicts between different OEM functions on same pin
● Potential for poor equipment to interfere with vehicle operation
● Inconsistent vehicle state
● Minimal security
Pin Conflicts
Orange = signal conflict between vehicles
Concept● Vehicle network gateway connecting to all
busses● A variety of devices can access the vehicle ● Consistent vehicle state data, especially for
power control● Provide the same capability as the previous
direct data bus access for diagnostics applications
● Ensure vehicle network stability
Requirements● Interface to multiple devices simultaneously● Security access levels
– Basic read-only data– Full bus access
● Prevent interference between devices● Cost minimized to OEMs and tool
manufacturers● Implementation should be straightforward
ImplementationUSB EthernetUbiquitousInexpensiveHigh speedLow latencyRequires one interface per
port, not easily expandableDepending upon USB profile,
can be used with inexpensive microcontrollers
Power via USB, non-standard in this manner, maximum 5W
UbiquitousInexpensiveHigh speedLow latency on local networkEasily expansion using
Ethernet hubs and switchesCan be used with
inexpensive microcontrollers at lowered data rates
Power-over-Ethernet, maximum 25W
Benefits to Vehicle Manufacturers● Can use generic, low-cost radio hardware for
OEM telematics● No expectation to provide an ‘app’ ecosystem or
data connectivity to 3rd party functions● Equipment conflicts eliminated● Flashing and diagnostics all can be done with a
standard computer if needed● Dealership can hook vehicle to diagnostics
system easily via WiFi dongle
Vehicle Manufacturer CostsDepending on vehicle bus configuration, a
high volume solution can be reached in the sub-$20 range:$3 – Processor$2 – Ethernet transceiver$4 – 100 mbps Ethernet switch (4 ports)$4 – Vehicle bus transceivers$4 – Connectors$2 – Casing, Power, etc.
Benefits to ETI MembersConsistent access to vehicle systemsOpportunity to supply vehicle gateways to
OEMsCould bring an era of better software-only
scantoolsBOM reduction for both low- and high-end
devicesRelaxed device packaging constraints as
expansion ports can be located in remote vehicle areas (trunk?)
Tool Manufacturer Costs-$4 transceivers-$3 cables and connectors+$2 Ethernet transceiver+$0.50 processor with Ethernet support
(SPI?)Net savings of $4.50+ in high volumes
Technical Details● 4 Ethernet ports
● One preferably located near the driver’s seat
● Remainder located near rear of vehicle
● Basic API would cover vehicle speed, emissions data, odometer, brake switch, accelerometer data, fuel consumption, etc.
● Advanced API would provide encapsulated access to the vehicle data busses. Requests could be throttled as-needed to prevent interference with critical vehicle comms.
More Future Vehicles● Would have Ethernet already● Could be directly connected to diagnostic ports
as long as access APIs are preserved● Solid upgrade path
Backwards CompatibilityThere will be a need for existing vehicles to
be retrofit with a small Vehicle Network Gateway to work with newer equipment.
This could be one-size-fits-all or a different part by vehicle manufacturer and legacy data bus.
There would be a strong opportunity for ETI members to supply these aftermarket components.
Questions?
