Posts Tagged ‘vehTech’

Tech Focus: Raising the Bar on Autonomous Vehicle Safety

Thursday, February 10th, 2022

The fully autonomous vehicles of the not-so-distant future promise tremendous gains in automotive safety and transportation efficiency.

In this guest commentary, Thomas Goetzl from Keysight Technologies shares his insights on how automotive OEMs must move beyond contemporary levels of vehicle autonomy to fulfill this promise.

Keysight's Radar Scene Emulator (RSE) closes the gap between software simulation and roadway testing, and training ADAS and autonomous driving algorithms to real-world conditions.

Keysight’s Radar Scene Emulator (RSE) closes the gap between software simulation and roadway testing, and training ADAS and autonomous driving algorithms to real-world conditions.

SAE International (formerly the Society of Automotive Engineers) defines six levels of vehicle autonomy, with Level 0 representing fully manual and Level 5 representing fully autonomous.

Today’s most advanced autonomous vehicle systems rate only Level 3, which means they are capable of making some decisions such as acceleration or braking without human intervention.

“In order to make the leap to the tremendous gains in automotive safety and transportation efficiency that fully autonomous vehicles promise, OEMs will need to overcome a unique set of challenges for testing automotive radar sensors in advanced driver assistance systems (ADAS) and autonomous driving systems, as well as developing new methodologies for training algorithms that conventional solutions are ill-equipped to address,” says Thomas Goetzl, vice president of automotive and energy solutions at Keysight Technologies.

Getting from Level 3 to Level 5 will require many breakthroughs, including closing the gap between software simulation and roadway testing, and training ADAS and autonomous driving algorithms to real-world conditions.

Keysight’s latest innovation, the Radar Scene Emulator (RSE), goes a long way toward bridging these gaps.

Software simulation plays an important role in autonomous vehicle development.

Simulating environments through software can help validate the capabilities of ADAS and autonomous driving systems.

But simulation cannot fully replicate real-world driving conditions or the potential for imperfect sensor response — something that fully autonomous vehicles will inevitably have to contend with.

OEMs rely on road testing to validate ADAS and autonomous driving systems prior to bringing them to market.

While road testing is and will continue to be a vital and necessary component of the development process, it is time-consuming, costly, and difficult to repeat specifically in the area of controlling environmental conditions.

Relying on road testing alone to develop vehicles reliable enough to navigate urban and rural roadways safely 100% of the time would take decades.

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Tech Focus: Monitoring Battery Temperature by Using a Data Acquisition System or Specialised Battery Test System

Wednesday, January 19th, 2022

In today’s electronics applications, batteries power nearly all of our portable electronic devices. Batteries also serve as emergency power backup systems on large premises. And all-electric vehicles use large cascading battery packs to meet the expected power for the required performance.

In this guest commentary, Bernard Ang from Keysight Technologies shares his insights on specialised battery testing.

Batteries are the key to our portable/mobile electronic gadgets in this digital era.

Batteries are the key to our portable/mobile electronic gadgets in this digital era.

Battery packs need the required specific power (W/kg) to be able to dispense enough current to achieve the electric vehicle speed performance.

They also need the required specific energy (Wh/kg) to achieve longer runtime or travel range.

Why is it important to monitor battery temperature?

Most rechargeable batteries today are lithium ion and have an operating range between 15 °C and 35 °C at which their full performance and capacity kicks in.

  • If the battery and its ambient temperature is below 15 °C, you may experience sluggish electrochemical reactions within the battery and as a result, lower battery performance and reduced charge capacity.
  • If the battery or battery pack operates above 35 °C in ambient temperature, battery degradation can accelerate over time. As a result, you may notice shorter battery life, non-uniform aging due to thermal gradients, greater exposure to safety issues, and higher life cycle costs. At extremely hot temperatures, batteries can break down and cause leakage, smoke, fire, and even explosions.

The power map chart below shows the power limits of your lithium-ion battery or battery packs across the temperature range.

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Tech Focus: Looking Ahead – High Speed In-Vehicle Display and Sensor Connections (Part 2 of 2)

Friday, December 17th, 2021

In this two-part guest commentary, Carrie Browen and Kevin Kershner from Keysight Technologies share their insights into the future of high speed in-vehicle display and sensor connections. You may find Part 1 here.

Automotive display use-case. © 2021 MIPI Alliance, Inc.

Automotive display use-case. © 2021 MIPI Alliance, Inc.

For this second half of our commentary, we begin with an introduction of SerDes.

In today’s infotainment systems, it is common for in-vehicle cameras and displays to be connected to the image-processing electronic control unit (ECU) via a SerDes (serializer/deserializer) connection.

Today, they are delivered by individual vendors using closed, proprietary standards.

Extending the reach of feature-rich SerDes links can require operating at lower Baud rates and higher order modulations (e.g. PAM-4).

In addition, it will require higher bandwidth Ethernet links as primary interconnects between zones, perhaps with 802.3ch support up to 10 Gbps throughput.

Emerging SerDes standards like mobile industry processor interface (MIPI) A-PHY (MIPI A-PHY is a physical layer specification targeted for ADAS/ADS surround sensor applications and Infotainment display applications in automotive) and Automotive SerDes Alliance (ASA) will be implemented by multiple silicon vendors.

This will create a competitive market that acts to drive down the cost while delivering application specific features.

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Tech Focus: Looking Ahead – High Speed In-Vehicle Display and Sensor Connections (Part 1 of 2)

Thursday, December 16th, 2021

In this two-part guest commentary, Carrie Browen and Kevin Kershner from Keysight Technologies share their insights into the future of high speed in-vehicle display and sensor connections.

A conceptual diagram of a zone-based in vehicle network architecture. Image: Keysight Technologies.

A conceptual diagram of a zone-based in vehicle network architecture. Image: Keysight Technologies.

It is no secret the pace of innovation in the automotive industry is exploding.

If the last 20 years have been linear in the development of electrification, the last two to three years have been exponential.

It used to be that a car was a means of getting from A to B.

Now, we can safely say that is not true for the vehicles of today and certainly not for the new vehicles of tomorrow.

Just about every new car on the market has a backup camera, park assist, and blind spot monitoring.

Some offer a 360-degree view.

Other features offer real-time traffic updates, cellular connection to potential hazards, other road users, vehicles, or pedestrians.

There are features that can detect if a driver is distracted or tired.

Meanwhile, the people in the car are often unaware of driving conditions, while they enjoy infotainment systems.

These features are delivered through a mixture of sensors, cameras, and networks.

As demands go up, next-generation advanced driver-assistance systems (ADAS) require camera and radar systems with increasingly high resolution.

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Tech Focus: C-V2X Certification – Necessary or Just Nice to Have?

Monday, November 22nd, 2021

Fewer accidents and greater road safety are central to the vision for automated vehicles (AVs). Enabling that vision requires greater situational awareness and the ability to inform the car and its drivers what is happening a mile in front of them, foreseeing what’s likely to happen next, and automatically taking preemptive actions.

In this guest commentary, Cheryl Ajluni from Keysight Technologies shares her insights into C-V2X certification.

C-V2X Applications (Image courtesy of Qualcomm).

C-V2X Applications (Image courtesy of Qualcomm).

Cellular vehicle-to-everything (C-V2X) technology provides see-through, 360-degree, non-line-of-sight (NLOS) sensing in good, as well as adverse weather conditions to enhance the functionality and safety of autonomous driving (see the cover illustration).

C-V2X complements line-of-sight (LOS) sensors such as radar, lidar, camera, with information beyond their reach, and allows the vehicle to make more informed and coordinated decisions.

Whereas LOS sensors cannot indicate vehicle or driver intent, C-V2X conveys intent by sharing sensor data – resulting in a higher level of predictability in traffic situations such as lane changes, variable speeds, or road hazards.

Day one use cases include safety features such as emergency electronic brake light and forward collision warning, ‘do not pass’ warning, blind spot and lane change warning, vulnerable road user, road works warning, and intersection movement assistance.

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Tech Focus: The Electric Vehicle Race to Market

Friday, October 29th, 2021

Three rapidly advancing technologies are driving this collective race towards zero-emission e-mobility: wide-bandgap (WBG) devices, more power-dense batteries, and faster charging capabilities.

In this guest commentary, Hwee Yng Yeo from Keysight Technologies shares her insights into the great EV race.

GaN and SiC wide-bandgap power semiconductors facilitate a host of onboard EV power conversion applications. Image credit: Keysight Technologies.

GaN and SiC wide-bandgap power semiconductors facilitate a host of onboard EV power conversion applications. Image credit: Keysight Technologies.

Since its inception on a paper napkin more than a decade ago, Formula E has evolved rapidly as a motorsport with a mission.

Entertainment aside, this electric streetcar racing’s founding mission is to showcase sustainable mobility to the world, and it has done pretty well.

It’s the only motorsport to have ISO 20121 certification for net zero carbon footprint since its first race in Shanghai in 2014.

Getting the Formula E car into pole-position entails a lot of hardware and software technology to extract maximum efficiency from the electric vehicle’s (EV) powertrain and battery.

For the key automotive OEMs, it’s not just about getting their car across the checkered flag first.

With billions of R&D dollars poured into developing better EVs, the goal of participating automakers goes beyond the championship trophy.

Learnings from these high-intensity races are applied to improve electromobility technologies back in the R&D labs.

Three rapidly advancing technologies are driving this collective race towards zero-emission e-mobility:

  1. wide-bandgap (WBG) devices
  2. more power-dense batteries
  3. faster charging capabilities

Efficient power conversion with WBG devices

A lot of power conversion takes place in the EV.

A DC-DC converter for example, steps down the power from the high-voltage EV battery to 12 V, with further conversions to run onboard systems like lighting, radio, and air-conditioning (see the diagram above).

The author of this article is Hwee Yng Yeo, the industry solutions manager for Automotive and Energy at Keysight Technologies.

The author of this article is Hwee Yng Yeo, the industry solutions manager for Automotive and Energy at Keysight Technologies.

WBG devices such as Silicon carbide (SiC) and Gallium nitride (GaN) semiconductors are used in transistors to facilitate this power conversion throughout the vehicle.

GaN applications are an emerging technology area, and developers find it hard to validate their design for these high-performance power converters.

Increased frequency and higher power affect the reliability of measurements needed to characterise the device’s performance.

It can be hard to distinguish whether the measured signal is the device’s characteristic or caused by the measurement setup.

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Huawei demos proof of concept driverless car in 5 weeks

Thursday, February 22nd, 2018

Huawei showcases driverless Porsche Panamera driven by the Mate 10 Pro, leveraging the smartphone’s powerful computer chip and AI (Artificial Intelligence) engine.

Huawei boasts that it is the first mobile device manufacturer in the world to use an AI-powered smartphone to drive a car.

Huawei boasts that it is the first mobile device manufacturer in the world to use an AI-powered smartphone to drive a car.

The aim of the “RoadReader” project is to push the boundaries of Huawei’s object recognition technology and put the learning capabilities, speed and performance of its AI-powered devices to the test.

The AI engine in the Huawei Mate 10 Pro transforms the Porsche Panamera into a driverless vehicle that does not just see, but also understands its surroundings.

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New arrival: Audi showcases A8 & RS 5 Coupe @ Singapore Motorshow

Friday, January 12th, 2018

At the Singapore Motorshow 2018, Audi Singapore launched the Audi RS 5 Coupé and gave a preview of its key models for 2018 – including the Audi A8.

The new Audi A8 previewed at Singapore Motorshow 2018.

The German carmaker also presented its “25th Hour” exhibit, showed off its new digital retail concepts, and launched a new premium mobility service – Audi on demand.

Brought in specially for the preview at the Singapore Motorshow, the new Audi A8 is the first production automobile in the world to have been developed for highly automated driving.

Available at Audi Centre Singapore, the Audi RS 5 Coupé is priced at S$394,000 inclusive of COE and VES.

The Audi A8 will be launched in Singapore in H1 2018.

The gran turismo among the RS models, the new Audi RS 5 Coupé combines athletic power with harmonious aesthetics and practical everyday usability.

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New arrival: Subaru launches EyeSight Driver Assist Technology

Thursday, January 11th, 2018

At the Singapore Motorshow 2018, Subaru launches EyeSight Driver Assist Technology to enhances safety for its cars.

Subaru’s EyeSight Driver Assist Technology provides the driver with extra awareness, safety, and added confidence. Here’s the Adaptive Cruise Control at work.

Subaru’s EyeSight Driver Assist Technology provides the driver with extra awareness, safety, and added confidence. Here’s the Adaptive Cruise Control at work.

Motor Image, the exclusive distributor of Subaru vehicles across nine countries in Asia, today launched Subaru’s EyeSight Driver Assist Technology at the Singapore Motorshow 2018.

The new technology will complement Subaru’s other core technologies such as the Boxer Engine, Symmetrical All-Wheel Drive and Subaru Global Platform.

EyeSight is a driving support system that uses a range of functions to assist the driver, providing a safer and comfortable driving experience.

Adding confidence to every trip, EyeSight uses stereo cameras to identify the surrounding vehicles, obstacles, traffic lanes and other items.

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