Tuesday, August 14, 2018

Toyota increases investment in hydrogen fuel cell vehicles

Toyota Motor Company is increasing its investment in hydrogen fuel cell vehicles (FCV). It is designing lower-cost, mass-market passenger cars and sport utility vehicles and even pushing the technology into trucks and buses to produce economies of scale.

Toyota wants to make FCV's cheaper
Yoshikazu Tanaka, chief engineer of the Mirai said in an interview with Reuters: "We’re going to shift from limited production to mass production, reduce the amount of expensive materials like platinum used in FCV components, and make the system more compact and powerful.”
Many automakers and industry experts have mostly dismissed plans to expand the production of fuel cell vehicles (FCV) as being commercially unviable but Toyota hopes to prove them wrong. Toyota is busy cranking up improvements for its Miral hydrogen fuel cell vehicle expected to be released in the early 2020s. It has been around for some time as the appended photo shows.
Toyota planning new models of FCVs
The company also plans to introduce other models including SUVs, pick-up trucks, and commercial trucks beginning around 2025, a source with knowledge of the automaker’s plans said. However Toyota would not comment on its specific plans for the future. It has already developed prototypes of small delivery vans, and also large transport trucks.
Ikuo Ota, manager of the new business planning for fuel cell projects at Toyota said: "We are going to use as many parts from existing passenger cars and other models as possible in fuel cell trucks. Otherwise, we won’t see the benefits of mass production.”
Toyota expects improved performance from their FCVs
Toyota hopes to increase the driving range of its next Mirai model to 700-750 kilometers from its present approximately 500 kilometers. By 2025 it hopes to hit 1,000 kilometers far beyond present electric vehicle ranges.
Toyota continues to believe in potential of FCVs
Toyota has a strong belief that within the next 100 years hydrogen will become a key source of clean energy. The company has been busy developing FCVs since early in the 1990's. Hydrogen is the most abundant element and it also has the advantage of storing more energy than a battery of equivalent weight.
Production of Mirai has been quite limited
Mirai was world's first production FCV launched way back in 2014. However, it costs around $60,000 prior to any government incentives. There is an acute lack of refueling infrastructure. Less than six thousand have been sold around the world.
Forecasts see sale of FCV's to make up only 0.2 percent of world passenger car sales by 2027 whereas battery EVs are expected to be 11.7 percent. However Toyota is reported to think that the demand for the vehicles will strengthen as countries strongly committed to EV's such as China warm to the advantages of the technology. The company also sees the development of FCVs as a hedge against the possible scarcity of key EV battery materials such as cobalt.
For now the Mirai is hand-built in Toyota city producing only a few models a day. However, the company expects sales to rise to about 30,000 units annually after 2020 from about 3,000 now. To lower production costs the company will need to produce other models.
The company is also reducing other costs. Eri Ichikawa a fuel cell engineer said: "We’ve been able to decrease the platinum loading by 10 percent to 20 percent and deliver the same performance."
Fuel Cell Vehicles
Wikipedia
 describes an FCV as follows: "A fuel cell vehicle (FCV) or fuel cell electric vehicle (FCEV) is a type of electric vehicle which uses a fuel cell, instead of a batt ery, or in combination with a battery or supercapacitor, to power its on-board electric motor. Fuel cells in vehicles generate electricity to power the motor, generally using oxygen from the air and compressed hydrogen. Most fuel cell vehicles are classified as zero-emissions vehicles that emit only water and heat. "
Fuel cells are being developed and tested in trucks, buses, boats, motorcycles and bicycles, as well as other kinds of vehicles.
As of 2017 there is only limited infrastructure support for FCVs with only 36 hydrogen fueling stations available in the US. However, more are planned particularly in California. However there are stations in Japan, Europe and elsewhere with more being planned. However, some critics question whether the technology will ever be able to compete with other zero emission technologies.


Previously published in Digital Journal

Facial recognition software generates 28 false positives linking US Congress members to mugshots

The American Civil Liberties Union (ACLU) tested Amazon's facial recognition system by scanning all 535 members of the US Congress against 25,000 mugshots public mugshots. The test generated 28 false positives.

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None of the members were in mugshots. The Amazon system called Rekognition is already in use by some police departments.
The ACLU wants a moratorium on the use of Rekognition by police
ACLU said: “An identification — whether accurate or not — could cost people their freedom or even their lives. Congress must take these threats seriously, hit the brakes, and enact a moratorium on law enforcement use of face recognition.”
Amazon blames results on faulty calibration
An Amazon spokesperson said to Verge that the result was due to poor calibration. The ACLU tests were done using Amazon's default setting of 80 percent. However, the spokesperson said that for law enforcement applications at least a 95 percent application should be used as a false ID could have significant consequences.
The Amazon representative said: “80% confidence is an acceptable threshold for photos of hot dogs, chairs, animals, or other social media use cases. It wouldn’t be appropriate for identifying individuals with a reasonable level of certainty. it wouldn’t be appropriate for identifying individuals with a reasonable level of certainty.”
Yet, there is nothing in the setup process that enforces the recommendation meaning that there is nothing to prevent police from using the default setting.
Amazon reported a number of police depts. used Rekognition
The Orlando police in Florida used the system as a pilot project in real-time recognition. The system is sold as part of Amazon's Web Services. It can often cost less than $12 a month for an entire department. Although the Orlando project has ceased, the department continues to use the system.
ACLU is examining Recognition use by an Oregon Sheriff's Department
The latest ACLU experiment is designed in particular to examine Washington County's Sheriff's Department in Oregon's use of Recognition. The department has compared images against a database of as many as 300,000 mug shots.
Jacob Snow who organized the test for the ACLU of Northern California said: “It’s not hypothetical. This is a situation where Rekognition is already being used.”
Test shows signs of racial bias
11 of 28 or about 39 percent of false matches were of people of color and included civil rights leader Rep, John Lewis a Democrat of Georgia and five other members of the Congressional Black Caucus. Only 20 percent of the present Congress are people of color. People of color were obviously identified at a higher rate.
Problems with the use of Rekognition
In practice many facial recognition positives would be confirmed by a human before they led to concrete action such as an arrest. However, Snow said: “Imagine a police officer getting a false match for somebody with a concealed weapon arrest. There’s a real danger if that information is surfaced to the officer during a stop. It’s not hard to imagine it turning violent.”
Snow told Reuters:“Face surveillance is flawed, and it’s biased, and it’s dangerous.”
Nevertheless the outlook of Amazon was positive and touted a range of uses for Rekognition according to a spokeswoman for Amazon Web Services:“We remain excited about how image and video analysis can be a driver for good in the world.” She said the system could be used to help find lost children and preventing crimes. She noted that they system was usually used to narrow the field rather than make final decisions.

Toyota increases investment in hydrogen fuel cell vehicles

Toyota Motor Company is increasing its investment in hydrogen fuel cell vehicles (FCV). It is designing lower-cost, mass-market passenger c...