Difference between revisions of "Subaru"

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(Getting started)
(One intermediate revision by the same user not shown)
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Check if your car fingerprint is already added to any of the forks/branches
 
Check if your car fingerprint is already added to any of the forks/branches
 
* [https://github.com/bugsy924/openpilot/blob/Test-ES/selfdrive/car/subaru/values.py Test-ES]
 
* [https://github.com/bugsy924/openpilot/blob/Test-ES/selfdrive/car/subaru/values.py Test-ES]
* [https://github.com/martinl/openpilot/blob/subaru-giraffe/selfdrive/car/subaru/values.py subaru-giraffe]
+
* [https://github.com/martinl/openpilot/blob/subaru-giraffe-devel/selfdrive/car/subaru/values.py subaru-giraffe-devel]
* [https://github.com/martinl/openpilot/blob/subaru-devel2/selfdrive/car/subaru/values.py subaru-devel2]
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* [https://github.com/martinl/openpilot/blob/diy-giraffe-devel/selfdrive/car/subaru/values.py diy-giraffe-devel]
  
 
Porting
 
Porting
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*** [https://github.com/commaai/opendbc/blob/master/subaru_outback_2015_eyesight.dbc Subaru Outback 2015]
 
*** [https://github.com/commaai/opendbc/blob/master/subaru_outback_2015_eyesight.dbc Subaru Outback 2015]
  
Forks to use as base for porting
+
Openpilot forks and branches to use as base for porting
 
* Pre-Global (2015-2017)
 
* Pre-Global (2015-2017)
** [https://github.com/bugsy924/openpilot bugsy924] Test-ES - supports pre-global models and giraffe with eyesight on can2
+
** [https://github.com/bugsy924/openpilot bugsy924] Test-ES - supports pre-global models and giraffe, Eyesight on CAN2
  
 
* Global (2018+)
 
* Global (2018+)
** [https://github.com/martinl/openpilot martinl] subaru-giraffe - supports comma giraffe with relay and eyesight on can2
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** [https://github.com/martinl/openpilot martinl] subaru-giraffe-devel - supports comma giraffe with relay, Eyesight on CAN2
** [https://github.com/martinl/openpilot martinl] subaru-devel2 - supports custom giraffe with eyesight on can1
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** [https://github.com/martinl/openpilot martinl] diy-giraffe-devel - supports DIY giraffe, Eyesight on CAN2
  
 
= Models =
 
= Models =

Revision as of 13:53, 13 August 2019

Status

The OpenPilot Subaru port supports following Global platform (~2018+) models:

  • Impreza 2019
  • Crosstrek 2018

Work in progress

  • Global
    • Impreza 2018
  • Pre-global
    • Outback 2015
    • Legacy 2017
    • Legacy 2018

Main requirements for adding Openpilot support are Eyesight and LKAS.

Lateral control (steering)

Openpilot handles steering using EON, Panda and Giraffe or custom wire harness.

Longitudinal control (accelerator and brakes)

Eyesight handles longitudinal control using stock ACC. Stop and go support - stop is automatic, go requires ACC resume button

TODO

Global

  • Upstreamable hardware solution for Giraffe relay control. One possible solution would be LIN

Pre-global

  • Lateral
    • CAN messages (DBC) - DONE
    • Panda CAN forwarding - DONE
    • Panda CAN filtering - DONE
    • Panda safety - PR, waiting for upstreaming
    • tuning - in progress
    • upstream pre-global PR

Getting started

Required hardware

Adding support for new model

Read first

Check if your car fingerprint is already added to any of the forks/branches

Porting

  • ssh into EON
  • move stock openpilot and set up a fork (choose according to global/pre-global and type of giraffe below)
    • killall tmux
    • mkdir /data/commaai
    • mv /data/openpilot /data/commaai
    • mkdir /data/<fork>
    • cd /data/<fork>
    • git clone https://github.com/<fork>/openpilot.git
    • cd openpilot
    • git checkout <branch>
    • cd /data
    • ln -sf /data/<fork>/openpilot .
    • cd /data/openpilot
  • flash panda
    • cd /data/openpilot/panda/board
    • killall boardd
    • make
  • test build and start openpilot
    • cd /data/openpilot
    • make
    • ./launch_openpilot.sh
  • kill openpilot running from console
    • ssh in (second session)
    • killall manager.py
  • when nothing checks out
    • restart car, reconnect panda and try again
  • Create Openpilot fingerprint for the car
  • For global models add fingerprint to IMPREZA as first step in selfdrive/car/subaru/values.py
  • Use Cabana to reverse engineer any missing CAN messages required for Openpilot

Openpilot forks and branches to use as base for porting

  • Pre-Global (2015-2017)
    • bugsy924 Test-ES - supports pre-global models and giraffe, Eyesight on CAN2
  • Global (2018+)
    • martinl subaru-giraffe-devel - supports comma giraffe with relay, Eyesight on CAN2
    • martinl diy-giraffe-devel - supports DIY giraffe, Eyesight on CAN2

Models

Legacy/Outback

  • 2015 Eyesight
    • Compatible with Panda and steering controller accepts LKAS message from 2016.
    • DBC
  • MY2016 w/ LKAS (eyesight)
    • Compatible with Panda and steering controller accepts spoofed by OpenPilot
    • ES DBC
  • 2017 w/ LKAS (eyesight)
    • Compatible with Panda and steering controller accepts spoofed by OpenPilot
    • Stock lane keep assist disabled OpenPilot runs while ACC is active
    • Exact DBC n/a

WRX

BRZ

XV/Crosstrek

  • 2013
    • Adaptive Cruise Control (ACC) - Not available on tested model
    • Automatic Braking - Not available on tested model
    • Auto Parking Features - Not available on tested model
    • Blind Spot Detection - Not available on tested model
    • Lane Keep Assist System (LKAS/LKA) - Not available on tested model
  • 2018
    • Panda wireless works with Chffr via OBD2. OBD2 connector CAN messages are filtered by CAN gateway (Body Integrated Unit - BIU). Getting unfiltered CAN messages requires CAN bus wiring harness.
    • Adaptive Cruise Control (ACC) - yes
    • Automatic Braking - yes
    • Auto Parking Features - Not available on tested model
    • Blind Spot Detection (BSD) - Not available on tested model (optional extra)
    • Reverse Automatic Braking (RAB) - Not available on tested model (optional extra)
    • Lane Keep Assist System (LKAS/LKA) - yes
    • DBC

Subaru Eyesight

Development timeline

  • 1989 - development started
  • 1999 - Active Driving Assist (ADA) - worlds first
  • 2003 - New ADA (sensor fusion, stereo cameras + radar)
  • 2006 - SI-cruise Control by laser radar
  • 2008 - EyeSight (stereo cameras only)
  • 2010 - EyeSight ver 2
  • 2014 - EyeSight ver 3

Source: Subaru Factbook 2017 Eyesight development timeline

Overview

Subaru eyesight was first available in the following years/models and includes the following features:

  • Pre-Collision Warning, Braking, and Throttle Management (Throttle lift-off during emergency braking)
  • Lane Departure Warning
  • Adaptive Cruise Control
  • Dual cameras instead of radar

Gen1 of Eyesight only featured 'notification' systems to alert the driver of lane departure/braking events; Gen2 allows emergency braking at any time. Gen3 includes color cameras, LKAS(2016+) after lane departure and ACC restart after full stops.

Gen2 - 2014 Forester Touring, Legacy

  • Pre-Collision Warning, Braking, and Throttle Management (Throttle lift-off during emergency braking)
  • LDW
  • ACC
  • Stereoscopic cameras


Gen3 (CVT) - 2015 Legacy, Outback, Crosstrek

  • ACC - Adaptive cruise control
  • Constant speed cruise control
  • Pre-collision braking
  • AT rapid start prevention control
  • Lane departure warning
  • Sway warning
  • Preceding vehicle start monitoring function


Gen3 - 2016+ Legacy, Outback, Impreza,

  • LKAS - Active lane keep (lane departure prevention)
  • ACC - Adaptive cruise control
  • Constant speed cruise control
  • Pre-collision braking
  • AT rapid start prevention control
  • Lane departure warning
  • Sway warning
  • Preceding vehicle start monitoring function

Optional extras:

  • BSD - blind spot detection (2 radars with 75 degree FOV in rear corners)
    • LCA - lane change assistance
    • RCTA - reversing assistance
  • RAB (reverse assisted braking, 4 sonar sensors in rear bumper)

More information can be found here

Main CAN bus wiring harness

CAN messages are filtered by CAN gateway (Body Integrated Unit) on the global platform and MY18+ cars. Getting unfiltered CAN messages requires direct connection to main CAN bus. Here are two possible options for directly connecting to CAN bus:

A-pillar

Eyesight compartment

Removing Eyesight cover

Additional Info

(*) Note - Data is unverified until someone can confirm they are correct.