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ADAS.ppt.pptx
- 1. Advanced Drivers Assistance Systems (ADAS): Seminar 1 Curriculum/Implementation & Lane Departure Systems
- 2. Meeting Guidelines • Ask questions via the “Chat” as we go or wait until Q&A • Please post your name, school and email in the “Chat” area • This will not be a “Deep-dive” • This is not intended to “Certify” anyone • The PPT is in wide screen, you may need to adjust your Zoom windows to fit the presentation screen, chat, and participant windows. *Special Thanks to Steve Zack and Bosch for massive support
- 3. Agenda For This Session • Locate the ADAS curriculum – Outline, Tasks, Presentations, more… • Recommended delivery sequence • Tasks • Sample presentation (Lane Departure Systems) • Calibration example • Laboratory Instructional Needs • Q&A
- 6. Recommended Sequence 1. Start with the “1 Bosch ADAS Sensor Operation” PPT. – This will cover camera and sensor operation that is applicable to all ADAS systems (generic). – This area will likely need the most time so students can understand how the cameras and sensors work. – Product Data Sheets provide more detailed information. *Focus should be on introduction and awareness, not creating master diagnostic technicians.
- 7. Recommended Sequence 2. Introduction to Advanced Drivers Assistance Systems (ADAS) 3. Systems like Lane Departure, Active Cruise Control or Blind Spot Detection provide solid starting points for the application of the cameras and sensors.
- 8. Recommended Sequence 4. Each system will provide brief information on the following for you: – Overview – Operation – Components – Diagnosis – Service / Calibration
- 9. Tasks • Eight generic tasks have been created to provide a foundation of laboratory work. You can edit or modify these as you like.
- 10. Brief Intro to Cameras • A camera operates by collecting light, passing it through a charged couple device (CCD) that converts the different colors to voltage. The voltage is amplified and sent onto a processor to convert to a digital signal that is then interpreted and utilized to make decisions • White light “Blinds” the camera as too many colors are present at the same time
- 11. Brief Intro to Radar Sensors • Active radar sends a signal that bounces off of an object and is measured upon its return. • Based on that information, distance and location can be determined.
- 12. Q &A
- 15. What Are Lane Departure Systems What: Systems designed to assist or warn driver when they are moving out of their marked lane Why: To improve passenger safety by providing warnings and / or intervention to potentially tired or distracted drivers. Benefits: Decrease in accidents / injuries / deaths caused by tired or distracted drivers Pathway to autonomous vehicles Increased traffic flow How: Utilization of cameras and electronically controlled systems can interpret and react to changing conditions faster than a human driver in many situations reacts. System can be “Passive” (Provide audio, visual or haptic feedback) to notify driver of a pending situation or can be “Active” (Intervention with steering) as the situation dictates.
- 16. Lane Departure System Operation Camera(s) to see road stripes / markings Some systems utilize only one camera, newer systems use two To keep the vehicle centered in the lane (LC) May have a “ping-pong” effect, weaving between the lines due to over corrections Audio, visual, haptic warning(s) to driver Notify driver when leaving lane (LDW) Turn signal activation key operational factor May have correction capability Audio, visual, haptic warning(s) to driver To keep the vehicle in the lane (LKA) Has correction capability Audio, visual, haptic warning(s) to driver
- 17. Lane Departure System Components Camera(s) Module(s) Switches Steering Visual Indicators Audio Haptic feedback (Steering wheel shake, seat vibration)
- 18. Lane Departure System Diagnosis Visual inspection Damage to glass Damage to camera(s) Fault codes OEM SAE Electrical testing Power Ground Signals BUS Communications External conditions Weather Heavy rain Snow / Sleet / Hail Fog Smoke / Dust Clarity of road markings Cleanliness of windshield
- 19. Lane Departure System Service / Calibration Mechanical Targets Some cameras hard mounted, some may be adjustable Non-related repairs and services can require calibration Windshield Alignment Collision Self / Auto Driving Road identification critical (markings)
- 21. Laboratory Needs • ADAS equipped vehicle The more systems the better, camera minimum • Scan tool with ADAS calibration capability Autel, Bosch, Snap On, others? • Calibration Equipment Autel, Bosch, Snap On and others have systems available • Access to information Shop Key, AllData, OEM
- 22. Seminar Schedule • Session 1: Curriculum and lane Departure • Session 2: Cameras and Sensors • Session 3: Active Cruise Control and Blind Spot Detection • Session 4: Parking Assist and Emergency Braking • Session 5: Night Vision and Traffic Sign Recognition • Session 6: Intelligent High Beam Assist and Front Collision Warning • Session 7: Front Vehicle Departure Warning and Adaptive Lighting • Session 8: Driver Drowsiness Detection and Hill Decent Control • Session 9: Rear Cross Traffic and Autonomous Vehicles • Session 10: Connected Vehicles and Vehicle Programming
- 23. Q&A • Questions? • Be sure to post name, school and email to “Chat” area • Questions regarding training credit and time compensation – Pamela.Gutman@peralta.edu • Thank you for being a critical part of moving automotive education forward with the “New Basics”
Editor's Notes
- General guidelines for the webinar to facilitate instruction and reduce interruptions. This is not to prevent comment or ignore valuable input, just trying to maximize our time. Remember, your knowledge or experience on a particular brand or model, may be different than a more generalized description that we are trying to provide. Please post your name, school and email in the chat for credit
- Important for faculty to know where and how to access these and other regionally shared materials and information These materials and suggestions are provided to support faculty, they are not required and can be modified as necessary Instructional needs will vary between institutions, there is no 1 way to do this
- Many faculty have had difficulties locating where the previous meeting presentations and the ADAS / Bosch provided materials can be located. In this webinar, we will guide you to where and how to access these materials. Today’s webinar is an evolution of these materials, will be made available in the future, along with presenter notes for the slides. This is the main webpage for Advanced Transportation and Logistics (ATL) at this time.
- The Curriculum area within the Faculty page is where the past meeting / training presentations can be found (Regional Joint venture: Next Gen Automotive Technology) In this same area the ADAS materials from Bosch and the regional curriculum project can be found and downloaded, as well as past RJV meeting presentations and training. The Bosch provided videos in this area can also be utilized and are not included in these presentations. The Bosch PPT for sensors should be reviewed by all faculty before continuing in the seminar series.
- Located in the ADAS area of the Curriculum section on the ATL site The Bosch PPT cannot be broken down, so you must show it as is. The Sensor / camera portion is around 50 slides, you may want to present this in multiple sessions. It covers the operation, it is not focused on details like the voltage of sensor x. The key goal is to provide students with an awareness of how the cameras and sensors operate. This is not intended to provide in-depth operation, testing and diagnosis. Manufacture information should be utilized for in-depth testing. By covering the cameras and sensors first, this will reduce the repeatability within the specific systems of covering them each time as all of the systems utilize some or multiple cameras / sensors in their operation. It is important to convey that while a specific camera or sensor may be the “primary” input for a function, it does not mean that other sensor data is not also utilized. There is an increasing amount of shared use taking place in vehicle systems today at the processing level. Data is always flowing from the cameras and sensors, the software determines what is used and when. This data sharing is a key part of the autonomous transition. Sensor Fusion: Utilization of multiple sensors / cameras to provide a more complete environmental awareness
- The intro PPT is a brief general introduction to ADAS, and provide video links that can be used as introductions to a particular system. Instructors can then expand on the video with the PPT’s for deeper involvement. Systems that are fairly common like: lane Departure, Active Cruise Control, Blind Spot protection can be good starting points a most people have heard of it or seen the “Orange” symbol in peoples mirrors at night.
- Each ADAS system PPT will have the same layout and is built with foundation knowledge only. As there can be many variations in regards to specifics between OEM’s, details are not typically provided on purpose. If you have access to OEM materials and especially if you have a vehicle to support the instruction, more details should be provided utilizing the OEM materials. Since the formats will be the same throughout the curriculum, after a couple of systems are covered it is a good opportunity to assign to groups or ask students to respond to what they think should be necessary for diagnosis or calibration. You will find there is little variation to the general, processes and specs will be what changes. Instructors should utilize available videos for equipment or vehicles they have, especially early in the instruction. That will support better application to your environment, other equipment can always be exposed later. Autel / Snap On and Bosch have videos demonstrating their equipment and are great for initial exposure and reference. These presentations will use various manufactures and equipment. Again, our focus is general, not specific with these sessions.
- There are 8 generic tasks that can be assigned to nearly every ADAS system making them very flexible for application. Based on your available vehicles or information more or less details can be required. The idea is to create a systematic approach to ADAS systems, similar to fundamental diagnosis of any vehicle system. This makes fundamental knowledge of operation critical! If they don’t know how or when it works, they cannot diagnose. Labs may require faculty set-up to expedite student work vs. students doing the complete set-up and adjustments. Camera calibration might take a group an hour to complete if they have to do everything. Space for calibration depends on the system being calibrated. Front cameras and radar can typically be done in a normal stall, side cameras will require more. A level floor matters and too much light can be an issue. The generic recommendation for calibration space is 30 long by 16 wide
- Since many of you have not likely viewed the Bosch Sensor PPT yet, we need to give you a brief introduction into the operation of cameras and radar. This will help reduce some questions during this presentation. Remember, it is recommended that the Bosch Sensor PPT be one of the first presentations you do in class. The light from an object passes through a lens that then passes through the CCD that converts each color to a voltage. That voltage is converted to digital then interpreted and corrections are then performed as necessary. Cameras can by LVDS (Low Voltage Differential Signaling) or Ethernet *Later version are Ethernet, more data capacity.
- Active radar: Send the signal that bounces off object and is received by the same unit Passive radar: Only receives signal sent by another sensor Transmission types vary: Doppler / Millimeter wave (common on cars) / Frequency modulated The “wave” is generated at a specific frequency, when it returns after being reflected, the distance and angle can be calculated and provided for determination and actions.
- Questions should include: Curriculum access and use (PPT’s, Tasks, White Sheets, Bosch materials, camera and radar operation)
- Multiple names: Lane Departure Warning (LDW), Lane Keep Assist (LKA), Lane Centering (LC), Lane Centering Assist (LCA), Lane Departure (LD), Lane Departure Warning System (LDWS) Lane Departure is a good system to start with. It is well known and has evolved over time from simple warnings to active corrections. It is also one of the most common ADAS systems available, likely due to price and installation ease. Always ask if students have experienced the systems, add any experience you may have, or have obtained via training or research. The video on the next slide is a good introduction to the system, this allows a point of familiarity to start and build from as they have “Seen” it in action. It is always best to focus on the vehicles and equipment that you have when presenting these materials.
- Build from the video Key points to briefly touch: What does it do How does it do it Why do we have it What is involved in its operation
- Provide some reference back to the camera operation covered in the Bosch materials. Discuss how the driver might be notified: lights (Instrument cluster, Heads Up Display), sounds, vibrations (Steering wheel, seat) Discuss the importance of the activation of turn signals in the operation Scenarios like right lane freeway driving that has an off-ramp. System sees the road markings move away, will alert driver, then should reacquire lines after exit is passed. Could the system correct steering if equipped? Could a system that ping-pongs in the lane alert a police officer thinking driving under the influence? How does this system interact with Blind Spot detection? Cameras can by LVDS (Low Voltage Differential Signaling) or Ethernet *Later version are Ethernet, more data capacity. Humans think at around 60Hz, how fast are today’s processors? (I-watch 520MHz)
- General system components- specifics will vary If a specific car is being covered, show diagrams or use system description of operation materials to provide more details. Discuss how the specific items are involved, what is their contribution to the systems operation. Some cameras incorporate the “Module” but provide information to a more “Central Command” for systems integration. What other systems / components might be involved directly or indirectly?
- The visual inspection is one of the most critical components of ADAS diagnosis as damage, modifications or non-OEM parts can cause issues. Inclusion of body repair /paint recognition would be a good addition as these can affect ADAS systems Aftermarket scan tools may or may not support ADAS well, OEM tools should provide diagnostic access. Diagnostic Process: Duplicate, check information, check for FC / data streams, do you know how the system operates, follow manufacture diagnostic steps (do not skip or assume) Follow available troubleshooting information and processes whenever possible. If not available, confirm the basics: Power, ground, signal / communications. (CAN / Ethernet / LVDS / ??) *Modified vehicles (raised, lowered, body kits, wrap, etc. can cause errors or inoperability) Driving conditions are critical, cameras and sensors can be affected by weather (if you can’t see, the car can’t see) is a good thing to keep in mind. Road markings on early systems are critical, later systems are becoming “smarter” and may be able to operate with less obvious markings. *States are commonly using the wide-bright tap for lanes now to support these systems. Lab work should put emphasis on scantool info (FC and available sensor data), electrical testing, scope testing and visual inspections. Show them how to recognize signs of collision repairs.
- Good videos are available from Autel for introduction to setup process. MotorAge did a good webinar available on YouTube for ADAS and included a calibration process. (2hr) https://www.youtube.com/watch?v=zML5OxVcrvE&feature=youtu.be You don’t need every target, just the ones that support your vehicle(s), you can always add more. More systems moving to target calibration due to difficulty with self calibration when driving (conditions). *Be sure to mention the importance of Thrust Angles when discussing any calibration. Alignment checks are a good inclusion for lab tasks. *Thrust issues become more impactful as distance increases due to the “cone” camera / sensor view *I-Car has specs and information on their website for many vehicles and systems https://rts.i-car.com/ *Most repair instructions say to perform calibrations after xx repair- it does not exempt for not adjusting thrust during an alignment (Remember liability) The next video is of Bosch’s new calibration system
- This is the new Bosch ADAS Calibration System
- You can include ADAS in your instruction today! You do not need a car to provide awareness and fundamentals for your students, nor do you need a separate course. Include applicable content in your existing courses. Alignment classes MUST include ADAS calibration awareness! It is no different than the need to include steering angle sensor calibration! OEM’s require you to calibrate when you align, they don’t have exclusions for “Only if you adjust the thrust.” Shop owners should be adding this into their alignments, as it is justified and creates more revenues. Liability for NOT doing it should be seriously taken into consideration! Remember, we are not certifying students in ADAS, only providing knowledge and experiences. Only the OEM’s can certify, no different than SRS / EV / Hybrid systems. Contact body shops, dealerships, wrecking yards for damaged parts for training aides.
- Tentative Schedule, dates and times are subject to change Each seminar is about 1.5 hours depending on the participants interaction
- Q&A should include: Curriculum Content Instructional Needs Contacts (Regional Directors, Advanced Transportation and Logistics) Pamela Gutman Regional Director, Advanced Transportation and Logistics College of Alameda 555 Ralph Appezzato Memorial Parkway Alameda, CA 94501 Cell: 925-872-9356 Email: Pamela.Gutman@peralta.edu