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self-driving car

Autonomous cars – vehicles which can operate on their own without a driver in control – are now already available, with Tesla’s cars best known for such an advanced feature (which costs an extra US$10,000) at this time. Other carmakers are also offering limited levels of autonomous motoring in their newer models as well, but use of such a feature requires approval by each country’s authorities. Malaysia, as with many countries, does not yet allow autonomous cars, as highlighted in a recent case where a Singapore-registered car was shown to be travelling on a Malaysian highway without the driver in control.

Even in countries where autonomous vehicles can operate, there are only certain sections of highways that their autonomous operation can be activated. This is because the road infrastructure has to be properly designed with standardized signage and clear road markings. The cameras on autonomous vehicles are the ‘eyes’ of the computer which assesses the surroundings and makes decision based on what it ‘sees’.

The systems in autonomous vehicles have to be able to recognise signs and road markings for the vehicle to proceed safely and not hit other objects. They also need to be able to recognise traffic lights so that the vehicle will be brought to a stop if the light is red.

Who is responsible for accidents?
The other more important issue is legal provisions since the vehicle is not under the control of the driver. If there is an accident when under autonomous operation, can the driver be held liable? Or should the manufacturer be responsible for damages? Different countries are examining this legal responsibility and in Britain, the legal changes necessary have been put forward which will allow the use of autonomous vehicles and how legal issues will be dealt with.

The new law considers the person in the driver’s seat as a ‘user-in-charge’ and will not be prosecuted for offences such as exceeding speed limits or not stopping at red lights if the vehicle is operating autonomously. However, the user-in-charge still has certain responsibilities such as ensuring that everyone has their seatbelts on and that the vehicle is not overloaded. Being drunk while using an autonomous vehicle will still be an offence.

The driver will be the ‘user-in-charge’ when the vehicle is operating autonomously, but will not be considered liable if there is an accident. This responsibility will be the manufacturer’s and/or software developer for the autonomous system, and insurance companies will pay compensation accordingly.

Responsibility for an accident will be directed to the Authorized Self-Driving Entity (ASDE), an entity that applied for authorization of the automated vehicle. This can be the manufacturer of the vehicle or the software developer of the automated driving systems (or both parties).

There already exists in British law an Act which makes reference to automated vehicles. Introduced in 2018 as the Automated and Electric Vehicles Act, it states that victims who suffer injury or damage from a vehicle operating independently will not need be charged and the insurance company will pay compensation as specified.

Can watch TV, cannot use mobilephone
The new law allowing the full benefits of autonomous vehicles to be used are expected to be introduced in the middle of 2022. Apart from the convenience of travelling long distances without actually driving the car, motorists can look forward to being able to watch movies or other broadcasts on their journey. Or they could read a book or have a meal without having to also pay attention to the road ahead (although it would still be a good idea to do so).

Strangely though, use of a mobilephone is still considered illegal. The thinking behind this is that the display on an infotainment screen can be interrupted to display a warning message in an emergency when the driver may have to take over control of the car. A mobilephone would not have such a capability since it is an entirely independent device.

The new law in Britain would allow the driver to watch TV or read a book (or even eat) but using a mobilephone (below) would still be an offence.

Self-driving and ADAS
The new rules are a first step in allowing use of autonomous vehicles on British roads and they also clarify the difference between cars that are ‘self-driving’ and those with advanced driver assistance features (ADAS). The latter can already be found in many cars today, common ones being automatic emergency braking, cruise control and lane-keeping. ADAS, also referred to as Level 2 autonomy,  helps drivers avoid accidents or minimize their effects but the driver must have control as well.

Autonomous vehicles have many sensors – cameras and radar – around the car to constantly scan the surroundings so that the car will avoid them.
What the computer ‘sees’ from images captured by cameras (pictured below) on the car.

As with most other countries, an autonomous vehicle would have to be homologated by the authorities before it can be used on public roads. No doubt new testing will be formulated to assess autonomous systems, just as the authorities have had to regularly update their testing as technologies have advanced.

Laws have to be periodically updated to take into account new technologies and Britain is doing so not just to keep pace with the changes but also see it as beneficial to the country’s economy. With clear laws that permit usage of autonomous vehicles, there can be more activity in R&D to develop the technology and related products. By 2035, around 38,000 new, high-skilled jobs could be created within the industry that would be worth £41.7 billion.

Some concept cars already suggest that, in future, autonomous vehicles will allow the driver to be completely uninvolved in operating the vehicle. But will it then be driving?

Human drivers use two eyes, autonomous cars need three eyes

With autonomous cars on the horizon and the involvement of humans in actually driving becoming unnecessary, dramatic driving manoeuvres like cars sliding sideways or doing handbrake turns may become a ‘lost art’. In fact, such manoeuvres would not be done as the supercomputer ‘driver’ would deem them dangerous and its job would be to avoid such things.

This doesn’t mean that the computer isn’t capable of such dramatic actions and the Toyota Research Institute (TRI) in America has demonstrated in a world first. As shown in the video, a sportscar drifts on a closed track and while there is someone inside, he is not actually controlling its movements. Combining a deep knowledge of both vehicle dynamics and control design, TRI’s Nonlinear Model Predictive Control (NMPC) approach extends the vehicle’s operational domain to the very limits of its performance.

Not a frivolous exercise
While the demonstration is impressive, it was not just a frivolous exercise and the idea behind it programming controlled, autonomous drifting is to ‘teach’ the computer how to avoid accidents by navigating around sudden obstacles or on very slippery road conditions.

“At TRI, our goal is to use advanced technologies that augment and amplify humans, not replace them,” said Avinash Balachandran, Senior Manager of TRI’s Human Centric Driving Research. “Through this project, we are expanding the region in which a car is controllable, with the goal of giving regular drivers the instinctual reflexes of a professional race car driver to be able to handle the most challenging emergencies and keep people safer on the road.”

Toyota Research Institute

‘Skills’ comparable to expert drivers
One year ago, TRI and the Dynamic Design Lab at Stanford University set out to design a new level of active safety to help avoid crashes and prevent injuries and fatalities. With the support of automotive performance specialist GReddy and drift legend Ken Gushi, this latest achievement is another step in that journey. By building skills comparable to an expert driver, this technology can amplify and augment a regular driver’s ability to respond to dangerous and extreme situations, helping keep people safe on the road.

“When faced with wet or slippery roads, professional drivers may choose to ‘drift’ the car through a turn, but most of us are not professional drivers,” said Jonathan Goh, a TRI Research Scientist. “That’s why TRI is programming vehicles that can identify obstacles and autonomously drift around obstacles on a closed track.”

This achievement brings TRI researchers closer to understanding the full spectrum of vehicle performance. The software advances announced today calculate a whole new trajectory every twentieth of a second to balance the car gracefully as it goes around the track.

NMPC explained
Combining the vehicle dynamics and control design insights from drifting-specific approaches with the generalized framework of NMPC yields a control scheme that extends the vehicle’s operational domain beyond the point of tyre saturation. This allows the vehicle to drive beyond the notions of traditional open loop stability to where the vehicle is skidding but still controllable due to closed loop driving control.

The NMPC controller can smoothly transition from dynamic, non-equilibrium drifting to grip driving, while accounting for multiple objectives including road bounds. This approach was tested on a Toyota Supra that has been specially customized for autonomous driving research. It is equipped with computer-controlled steering, throttle, clutch displacement, sequential transmission, and individual wheel braking. Vehicle state information is obtained from a dual-antenna RTK-GNSS-aided INS system at a rate of 250Hz, and the NMPC controller runs on an x86 computer.

For the purposes of data collection with expert drivers in a controlled environment, the suspension, engine, transmission, chassis and safety systems (eg roll cage, fire suppression) were modified to be similar to that used in Formula Drift competitions.

Teaching autonomous vehicles to recognise the behaviour of human drivers

Following the recent UK budget announcement by The Chancellor of the Exchequer, Philip Hammond regarding driverless cars, Cruden announced a cost effective way forward. This is a big deal considering that the UK government is set to make bold reforms that will see developers test vehicles on UK roads nationwide without a human operator by 2021.

Cruden is a well-known designer, manufacturer and integrator of open architecture driving simulators for the automotive, Motorsport, marine and motorcycle industries. And it believes that the most cost effective and risk-free way for companies to test their autonomous systems, is by using a driving simulator.

Doing so, will keep public motorists and pedestrian out of harm’s way. Currently, in states like California in the USA, autonomous cars are tested and driven on public roads. Should the unthinkable happen, and an autonomous car decides to go rogue, it could potentially cause a great deal of harm to those in the vicinity.

This is why Cruden believes that testing driverless technology in a repeatable and highly effective environment, without risking human injury, can only be accomplished with the use of a driving simulator. In fact, Cruden’s own machines can be used to test advanced driver-assistance systems (ADAS) and autonomous vehicle systems.

“We believe that extensive testing of the interaction between the driver and the car, with many different types of people, is required to get the necessary acceptance of the car’s decisions in handover moments and emergency scenarios, ” said, Jelle van Doornik, development engineer at Cruden.

“Yet this is dangerous, expensive and time consuming to do with real people in real cars with real traffic. The only way to achieve this while processing large numbers of different drivers through a test programme is to use an advanced driving simulator,” he added.

The company is adamant that testing driverless cars on UK roads isn’t possible because of the inconvenience and risks that they would pose to motorists and pedestrians. That said, automakers like Volvo, Tesla and Google have made massive strides in this area with only minor setbacks. But we shall have to wait and see if automakers decide to heed their warning or ignore it completely.

Ford has teamed up with Domino’s, the world renowned pizza maker, to develop autonomous delivery vehicles for the latter’s customers. This effort will enable the Blue Oval to study the role that future delivery pizza delivery vehicles might play in our lives.

Researchers from both companies will also investigate customer reactions to interacting with a self-driving vehicle as part of their delivery experience. They consider this of paramount importance because it will help them better understand customers’ perspectives regarding the future of food delivery with self-driving vehicles.

“As delivery experts, we’ve been watching the development of self-driving vehicles with great interest as we believe transportation is undergoing fundamental, dramatic change,” said Patrick Doyle, Domino’s president and CEO.

“We pride ourselves on being technology leaders and are excited to help lead research into how self-driving vehicles may play a role in the future of pizza delivery. This is the first step in an ongoing process of testing that we plan to undertake with Ford,” he later added.

Like many other mainstream automakers, Ford is still developing its self-driving vehicle business. Collaboration with other companies, will enable it to conduct valuable research that will be crucial to ensuring that the technology is applied in ways that benefit consumers.

The Blue Oval plans on rolling out production ready self-driving vehicles by 2021, and with that it hopes to meet the needs of companies and customers alike. But for Domino’s, currently a Ford Fusion Hybrid Autonomous Research Vehicle will be used to deliver pizzas to randomly-selected Domino’s customers in Ann Arbor, USA.

It wil be manually-driven by a Ford safety engineer and staffed with researchers. Customers who agree to participate will be able to track the delivery vehicle through GPS using an upgraded version of Domino’s Tracker®.

Text messages will be sent to respective customers once the delivery vehicle approaches their location. And will also guide them to retrieve their pizza using a unique code to unlock the Domino’s Heatwave Compartment™ inside the vehicle.

The Ford Fusion used here was retrofitted with the required hardware by Roush Enterprises which include the pizza container and Domino’s Heatwave Compartment. This vehicle was completed in 2015 and was put through preliminary testing in a simulated urban environment before it was let loose here.

It will be awhile before we start seeing such systems become common place at our local Domino’s outlet, but its comforting to know that Ford already has plans to ensure we get our pizzas on time.

Audi has become the first automaker to test its autonomous vehicles in New York. It intends to demonstrate and test the abilities of its self driving cars in the Big Apple with Society of Automobile Engineers (SAE) Level 3 automation. SAE’s Level 3 is a classification for vehicles that are capable of automated driving at posted highway speeds when specific conditions are met.

Testing will begin in mid-June where two trained engineers will be present in each of these Audi vehicles while the autonomous tests are conducted. One will be seated in front and the other in the back seat to monitor the vehicle’s systems and ensure that they are working as intended.

According to the automaker, Audi’s autonomous demonstration vehicle has already covered thousands of kilometers on limited access highways across the US safely and without incident. This is a testament to the reliability of the automaker’s self-driving systems that allow the vehicles to navigate through public roads and traffic safely.

Unlike certain other US states, New York is more open to idea of allowing self driving vehicles on its city streets. Last month, New York Governor Andrew Cuomo announced that New York was accepting applications from companies interested in testing or demonstrating autonomous vehicles on public roads. New legislation was included in New York’s 2018 financial year budget to allows for testing autonomous technology through a year-long pilot programme.

Regarding this, Scott Keogh, president of Audi of America said, “We have been leading the way in the development of piloted driving technology for more than a decade now, and testing in real-world environments is a key step in our pursuit of safer roads. We applaud Governor Cuomo for his leadership and stand ready to assist in defining how this future will unfold in the Empire State now and for years to come.”

The routes that will be used for Audi’s tests have been pre-approved by the New York Sate Police its application was approved by the Department of Motor Vehicles. The Police department will review the routes that will be taken and supervise the test demonstrations.

BMW ready to celebrate its 100th anniversary in 2016 with a production-ready autonomous concept car. (more…)

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