Mihai Dorobantu

Really interisting perspective on EV Car sales...

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The National Technical Committee of Auto Standardization (SAC/TC114) is soliciting opinions on the recommended national standard Recovery of Traction Battery Used in Electric Vehicle — Echelon Use — Part 5: Battery Design Guide for Echelon Use (Draft for Comments). The deadline for submitting comments is set for 10 July, 2024. As new energy vehicles in the Chinese market gradually enter the retirement phase, retired batteries can still meet the requirements for various echelon (secondary) uses, such as in low-speed electric vehicles, as backup power source for telecommunication base stations, and in electrical energy storage. However, issues arise in these echelon uses because the design of power batteries originally did not consider end-of-life applications in terms of materials, structure, and interfaces. This results in challenges in disassembling retired batteries, barriers to their secondary use, or complex and costly processes, thus hindering the development of the secondary use industry and leading to wastage of resources and energy. https://lnkd.in/gjhSVZYW

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The National Technical Committee of Auto Standardization (SAC/TC114) is soliciting opinions on the recommended national standard Recovery of Traction Battery Used in Electric Vehicle — Echelon Use — Part 5: Battery Design Guide for Echelon Use (Draft for Comments). The deadline for submitting comments is set for 10 July, 2024. As new energy vehicles in the Chinese market gradually enter the retirement phase, retired batteries can still meet the requirements for various echelon (secondary) uses, such as in low-speed electric vehicles, as backup power source for telecommunication base stations, and in electrical energy storage. However, issues arise in these echelon uses because the design of power batteries originally did not consider end-of-life applications in terms of materials, structure, and interfaces. This results in challenges in disassembling retired batteries, barriers to their secondary use, or complex and costly processes, thus hindering the development of the secondary use industry and leading to wastage of resources and energy. https://lnkd.in/gjhSVZYW

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The National Technical Committee of Auto Standardization (SAC/TC114) is soliciting opinions on the recommended national standard Recovery of Traction Battery Used in Electric Vehicle — Echelon Use — Part 5: Battery Design Guide for Echelon Use (Draft for Comments). The deadline for submitting comments is set for 10 July, 2024. As new energy vehicles in the Chinese market gradually enter the retirement phase, retired batteries can still meet the requirements for various echelon (secondary) uses, such as in low-speed electric vehicles, as backup power source for telecommunication base stations, and in electrical energy storage. However, issues arise in these echelon uses because the design of power batteries originally did not consider end-of-life applications in terms of materials, structure, and interfaces. This results in challenges in disassembling retired batteries, barriers to their secondary use, or complex and costly processes, thus hindering the development of the secondary use industry and leading to wastage of resources and energy. https://lnkd.in/gjhSVZYW

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Simple formula for greening the medium duty electric truck sector —> price so it’s economical today and deliver a high quality proprietary design built from ground up.

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This article from #IIHS is a wake-up call to #automakers thinking #NHTSA is a soft touch on regulation of driving automation and vehicle safety. The regulatory mood music is changing rapidly in D.C. and #OEMs need to pay attention. #FMVSS no. 127 for #AEB is a serious step forward for road #safety and places a floor under performance minimums for those systems. The same legislation is coming for driver monitoring systems #dms. National Highway Traffic Safety Administration NHTSA has already issued an #ANPRM for #impaireddriving, covering #drunk, #distracted and #drowsy driving. Look closely and we can see the developments are coming through the #NCAP working group on driver state monitoring, being driven from Europe, where the big developments on the table for the 2026 Euro NCAP - For Safer Cars, Vans & Trucks DMS protocols are cognitive distraction and impaired (drunk) driving. These are the same two critical areas for advances in U.S. road safety, but both require extensive #humanfactors expertise to work effectively in a road vehicle. A DMS detects impairment by measuring precise eye movements (occular metrics) and glance pattern analysis to assess driver state for distraction, drowsiness and drunk driving. The tech leader in this area is Seeing Machines . Drunk driving requires a multi-modal approach and can be further assessed by measuring micro movements of the driver’s limbs, again using human factors science to determine intoxication levels. The tech leader here is CorrActions. Putting the two signals together gives a non-invasive and passive measure of impairment which cannot be cheated or gamed, meets U.S. requirements, and is performed entirely in #software thus eliminating hardware cost and reliability issues. So to understand the coming DMS legislation in the U.S., pay close attention to Euro NCAP. The critical feature of #incabin vehicle technology in the years ahead isn’t anything to do with #GenAI. It is understanding people, and that we can find at the intersection of driver monitoring and human factors science. IIHS, NHTSA, NTSB, and NCAP are all saying the same things about the importance of DMS to make human drivers safer. But with so much focus instead on driving automation and “full self driving,” which automakers are listening? The latest edition of Semicast's report "#ADAS & Automotive Vision-based Driver Monitoring Systems" is published. Significant segmentation of the DMS/OMS market is provided. This is summarized as follows: - by movement detection into "Owl-only" and "Owl & Lizard" detection - by feature set - by processor type - by CMOS image sensor location - by CMOS image sensor resolution - by driver and occupant monitoring - by front-seat and whole-cabin monitoring Message me for a copy of the sales brochure for the study. My inbox is open. https://lnkd.in/eGsBzMsW

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I'm thrilled to announce the release of FAST: Future Aircraft Sizing Tool, the first open-source software out of my group, IDEAS Lab at the University of Michigan! So, what sets FAST apart from other tools? Many years ago, I created one of the first conventional/electrified aircraft sizing tools as part of my PhD thesis, E-PASS, which has been used extensively in industry and government projects. While many academic tools followed, most remain black boxes. FAST is open-source, democratizing access to knowledge. Unlike some of the existing tools that require extensive design knowledge, FAST leverages a historical database and predictive modeling, making aircraft design accessible with just four inputs. And if you're an expert user, FAST allows you to customize your design with more control and granularity suitable for a conceptual design tool. FAST excels at early-stage design space exploration, rapidly evaluating countless input combinations. When developing novel concepts, it's crucial to explore all possibilities and understand the consequences at the system level. The early design stage often lacks detailed information, making big decisions premature. FAST mitigates this by enabling rapid analysis and exploration, empowering users to navigate uncertainty effectively. We hope that FAST will be a valuable resource for educators and researchers alike. While we’re continuing development on new capabilities, you’re welcome to develop your own and contribute to the open-source movement and join us in advancing sustainable aviation!

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According to the article, axial flux electric motors, such as the one patented by General Motors, have a distinctive disc-shaped design that distinguishes them from more common radial flux motors. This design allows for a higher power density and torque output in a more compact package. Specifically, the article notes that axial flux motors can generate high torque at low speeds, which could potentially eliminate the need for multi-speed transmissions in electric vehicles. This is because the motor's high torque output across a wide speed range can mimic the functionality of traditional geared transmissions, providing the desired torque and acceleration without the need for complex shifting mechanisms. In traditional internal combustion engine vehicles, the transmission and gearing system are crucial for matching the engine's torque curve to the vehicle's needs. However, electric motors inherently have a flatter torque curve that extends across a wide speed range. https://lnkd.in/g22TFXxx

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Scientific “T3” Leadership! Nikola Tesla b. OTD 1856.  Serbian-American inventor, electrical engineer and futurist.   Patented the rotating magnetic field, which is the basis for Alternating-Current machinery, and invented the Tesla induction coil, an essential component in radio technology. Emigrated to the U.S. in 1884. Worked for a short time at the Edison Machine Works in New York City before he struck out on his own.  His inspirational style: - TEAMWORK: With the help of partners to finance and market his ideas, Tesla set up laboratories and companies to develop a range of electrical and mechanical devices. His alternating current (AC) induction motor and related patents, licensed by George Westinghouse in 1888, earned him considerable money and notoriety. In Tesla’s own lab, he invited people in to see how safe AC electricity was … hooking himself up to an electric lamp and allow the current to pass through his body on its way to lighting the lamp.  - TONE: “I do not rush into actual work. When I get an idea I start at once building it up in my imagination. I change the construction, make improvements and operate the device in my mind. In this way I am able to rapidly develop and perfect a conception without touching anything. When I have gone so far as to embody in the invention every possible improvement I can think of and see no fault anywhere, I put into concrete form this final product of my brain. Invariably my device works as I conceived that it should, and the experiment comes out exactly as I planned it.”  Tesla’s innovation process was unique - it's the equivalent of writing an entire book in your head, then editing it in your head, then finally putting it down on paper. He did this with Alternating Current, Tesla Coils, Radio, Induction Motors and Remote Controls.  Genius!  - TENACITY: Throughout the 1890s, Tesla pursued his ideas for wireless lighting and worldwide wireless electric power distribution in his high-voltage, high-frequency power experiments in New York and Colorado. Tesla's work fell into relative obscurity following his death in 1943 … until 1960, when the General Conference on Weights and Measures named the core unit of magnetic flux density the “Tesla,” and Elon Musk named his electric car company “Tesla Motors” in 2003 For more motivational “T3” leadership stories, visit: https://lnkd.in/dt22TRS

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Learn how Large Eddy Simulation (LES) provides more accurate predictions than conventional Reynolds-averaged Navier-Stokes (RANS)-based approaches for complex, turbulent turbomachinery flows 🙌 In this webinar, Cadence Design Systems will showcase the capabilities of Fidelity LES through whole-wheel simulations of a transonic fan stage to predict aerodynamic performance 🚀 Don’t miss out on this opportunity to enhance your understanding of advanced aerodynamic simulations and improve your engineering outcomes 👉 https://okt.to/IJMKVm #cadmicro #cadence #aerodynamics #turbomachinery #simulation

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A STEP input of 2 m/s^2 acceleration( red squared black line) gives rise to RAMP response in speed (dashed blue line) and PARABOLIC response in Displacement (green line) over a period of time in SCILAB figure (showing Vehicle motion response(s) with STEP Gas-Throttle input having no mechanical friction and aerodynamic drag in vaccum).

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We also discuss this briefly in our upcoming publication: coming soon, Gallun, S., and Loftus-Otway, #Legal Research Digest 91, prepared under NCHRP 26-03. Multistate Coordination and Harmonization For Automated Vehicle Legislation.  Submitted August 2023, TRB, Washington DC.(legal research digest that identifies the legal issues and barriers that exist for the national harmonization of state AV laws.) https://lnkd.in/g3eV5U_5 #automatedvehicles hopefully out by July

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Learn the basics of simulating a simple battery management system (BMS) for safe charging/discharging in various temperatures and more in Simscape Battery Onramp. #electrification https://spr.ly/60495Rbbc

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Elektrek reports: "Tesla releases update to remove steering wheel nag, shuts down sunglasses loophole," with improved camera-based #driver #monitoring. We need to call this update for what it is. Tesla's improvements to its #DMS amount to no more than polishing a turd. Elektrek continues: "This enhancement is available on vehicles equipped with a #cabincamera and only when the cabin camera has clear and continuous visibility of the driver’s eyes (e.g. the camera is not occluded, there is sufficient cabin illumination, and the driver is looking forward at the road ahead and not wearing sunglasses, a hat with a low brim, or other objects covering the eyes). A DMS needs to work at all times and under all lighting conditions to effectively perform the supervisory role for #FSD and #Autopilot. To not work in low light, or simply if the driver is wearing sunglasses, means it works unless it doesn't. That amounts to a hardware defect which cannot be resolved with changes to the software. This is the game Tesla is currently playing with #NHTSA. Coming regulatory changes mean Tesla is out of time for its woeful DMS. Tesla DMS came last in a recent #IIHS #automation #safeguards ranking (Ford Motor Company's DMS was ranked first) but coming harmonization of regulatory requirements across the U.S., Europe, and China through the 5-star #NCAP test will force Tesla's hand regarding properly functioning DMS in the near term. At a minimum, Tesla needs to implement DMS with 940nm optical path, add “Owl & Lizard” movement detection, work properly with sunglasses, and provide measures of #distraction and #drowsiness. Euro NCAP - For Safer Cars, Vans & Trucks is set to announce its 2026 DMS test protocols later this year and could add metrics for #cognitivedistraction and #impaired driving. Ironically it is Tesla FSD/Autopilot crashes that provide regulators with the data of what functions a DMS performing a supervisory role for partial automation most need to fulfil. NHTSA issued an #ANPRM for impaired driving in November. It is likely to follow that up with clear rulemaking for minimum DMS performance requirements in the next 12 months. The industry should not expect those requirement to be lame. FMVSS 127 for AEB was a major #safety advance. #Automakers should prepare now for the same step-change for DMS in the U.S. too. The latest edition of Semicast's report "#ADAS & #Automotive Vision-based Driver Monitoring Systems" is published. Significant segmentation of the DMS/OMS market is provided. This is summarized as follows:   - by movement detection into "Owl-only" and "Owl & Lizard" detection - by feature set - by processor type - by CMOS image sensor location - by CMOS image sensor resolution - by driver and occupant monitoring - by front-seat and whole-cabin monitoring   Message me for a copy of the sales brochure for the study. My inbox is open. https://lnkd.in/eWNvfQSm

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I have watched most, if not all, of the presentations and talks given by engineering representatives of car-makers at the MathWorks annual Automotive Conferences over the last few years. These presentations focus on vehicle control design using the Model-Based Design (MBD) approach with #Matlab and #Simulink. Although I am not an automotive engineer, Control Theory has been my hobby for over 10 years, of which I have self-studied the topic. I find the conference presentations fascinating and educational. Recently, during the 2024 MathWorks Automotive Conference held a week or two ago, Juergen Bortolazzi gave a ~30-minute talk on how engineers at Porsche AG are tackling challenges in designing intelligent vehicle control systems, including assisted and automated driving systems. Towards the end of his talk, Juergen briefly mentioned how their team is integrating AI into their designs. Furthermore, in a recent release (R2024a), MathWorks has introduced a PyTorch Simulink block, in addition to various Matlab AI Toolboxes available to engineers. This update allows engineers to harness the state-of-the-art AI and Deep Learning capabilities of PyTorch directly within Simulink for their designs. You can find more details in [1] in the comments section. For technologists who are interested in automotive intelligent systems, the proceedings of the MathWorks Automotive Conference 2024 Europe are accessible through link [2]. I believe Juergen's presentation, would be of interest, Philip Koopman, Missy Cummings, Dr. Jeffrey Funk and Mikell Taylor. _____ Excerpts: [Since the introduction of Park Distance Control and adaptive cruise control in the mid-2000s, Porsche has integrated driver assistance and automated driving technologies into its product lines. This does not contradict the philosophy of a sports car—customers who like to drive themselves in appropriate traffic conditions expect driving to be made significantly easier in stressful, time-consuming situations such as traffic jams or busy parking spaces. Although the general discussion focuses on the higher levels of automation from SAE Level 3 to Level 4, Level 1 and 2 systems will play a significant role for the next decade, at least, and represent the technological state of the art for most vehicles. In this environment, Porsche is focusing on increasing the performance and functionality of Level 1 and 2 driver assistance systems while developing programs that enable automated driving at Level 3 and 4. This offers the opportunity to build the necessary expertise in sensor technology, sensor fusion, planning and control, as well as the processes, methods, and tools required for the development, approval, and release of higher-level automated driving systems.]

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