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Toyota shows a smoother autonomous Lexus for CES

Toyota is bringing a new research vehicle to CES. The TRI-P4 autonomous driving test vehicle, based on the Lexus LS500h, is a major step ahead, according to Toyota, as it has improved computing power and additional cameras for better reaction times. Earlier test mules have also used the LS as a basis, and the shift to the new, fifth generation LS brings chassis and steering-control benefits, so the vehicle's movements are smoother in automated mode. The camera tech has also been better integrated into the vehicle design, courtesy of CALTY in Ann Arbor, Michigan. Development has been swift, as the TRI's P2.1 car was unveiled in 2017. The P4 car will be used for Toyota Research Institute's Guardian and Chauffeur mode development. The two tiers differ somewhat, as TRI's Ryan Eustice explains: "Our Chauffeur development is focused on full autonomy, where the human is essentially removed from the driving equation, either completely in all environments, or within a restricted driving domain. Guardian, on the other hand, is being designed to amplify human performance behind the wheel, not replace it. The introduction of the new P4 platform will help us accelerate the development of both tracks when it joins our fleet this spring." The vehicle's situational awareness is boosted by two extra cameras facing on the sides, and a new imaging sensor both forward and rearward. Toyota says the P4's lidar setup is a carryover from the previous platform, but that its machine learning is much improved by its more powerful computer setup. The electricity required by the P4's computing power also comes from the hybrid battery, and as the computer "brain" is now housed vertically against the rear seat's backing, actual trunk space has been freed. More LS500hs will begin to be modified into TRI-P4 vehicles during spring 2019. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

The tumultuous history of the diesel engine

Volkswagen, diesel's most enthusiastic patron, deceived everyone about the amount of emissions its cars were putting out. We have covered this latest massive automotive scandal in great detail, and there are surely more fascinating revelations to come. It turns out that this is just the latest episode in the epic story of the controversy and intrigue surrounding the diesel engine, and its inventor. This is the story of the tumultuous birth and interesting evolution of the compression-ignition engine at the center of the VW scandal. Napoleon III Got Rudolf Diesel Deported Rudolf Diesel was born in Paris in 1858. His Bavarian parents had settled in France where his father, Theodor, was a leather goods manufacturer. When the French Parliament declared war on Prussia, kicking off the Franco-Prussian war, the Diesels fled to London. When he was 12, Rudolf went to live with his aunt and uncle in the Bavarian university town of Augsburg. It was his parents' hometown, and importantly, it's where Rudolf began studying at the Royal County Trade School. His time in Augsburg, graduating at the top of his class from trade school that laid the groundwork for all that was to come. Diesel Nearly Blew Himself Up An early career in refrigeration saw Diesel running R&D in Berlin for Linde, a company started by refrigeration pioneer Carl Von Linde, one of Diesel's professors. His ambition to branch out beyond refrigeration, and his deep understanding of thermodynamics, led to efficiency experiments with steam engines. Diesel was trying to create an engine that didn't waste heat from the combustion process, therefore getting the most work out of the fuel. Instead, he was nearly killed when an experimental ammonia vapor steam engine exploded. Recovery took many months, and during some of that time, he was no doubt planning his next experimental engine, based on the theoretical Carnot cycle. His Engine Was An Attempt To Stick It To The Man Steam engines were expensive to run and wasteful. Diesel thought the efficiency of his design would be a way for the small business to compete with the dominant industrial giants. It was, and it did, but big business is equally passionate about chasing efficiency. Diesel engines quickly proliferated in industries both grand and cottage. Rudolf Didn't Really Invent The Diesel As We Know It Instead, he improved an existing one to a significant degree. The Diesel engine could be considered an evolution of the "hot-bulb" engine.

Toyota expanding Aichi's test EV infrastructure in Japan

OK, now we're really confused. In the US, Toyota has been telling anyone who cares to listen that the future of advanced-powertrain technology is hydrogen fuel-cell vehicles, not electric ones. In China, a Toyota joint venture is looking at EVs. Over in Japan? They've just decided to pony up a little more for testing electric-vehicle technology. Maybe something's lost in translation. Toyota has been running an electric-vehicle charging station trial project in Japan's Aichi Prefecture during the past couple of years and is now ready to expand that program, adding 43 new charging stations to the 104 already present. Many of the EVSEs are in municipal-owned properties or in mountainous areas (where EV batteries drain the fastest). Toyota's expanded program started running in Kariya City, Toyota City, Toyohashi City and Nagakute City this month, and testing will extend until the end of next March. There's more in Toyota's press release below. Toyota's electric-vehicle presence is limited here in the US, as the low-production RAV4 crossover is the only model sold here. Toyota executive Craig Scott was recently quoted as saying that the company questions whether there is sufficient demand in the US for pure electric vehicles. With that in mind, Toyota will debut its hydrogen fuel cell model in the US in 2015. Toyota to Test Expansion of EV and PHV Charging Infrastructure in Japan Toyota City, Japan, October 31, 2014-Toyota Motor Corporation announces that it will be testing electric vehicle charging infrastructure in Aichi Prefecture from November 1 until March 15, 2015. The tests will involve standard chargers for use with vehicles such as plug-in hybrid vehicles (PHVs) and electric vehicles (EVs). The tests will be conducted jointly with four municipalities (Kariya City, Toyota City, Toyohashi City, and Nagakute City) and two companies (Toyota Industries Corporation and UNY Co., Ltd.), all of which are located in Aichi Prefecture. Toyota conducted similar tests in FY2012 and FY20131. In addition to targeting commercial, tourist, and accommodation facilities as in past tests, this year's tests will also involve cultural and social service facilities (including some in hilly and mountainous areas). Multiple chargers will be installed at certain commercial facilities where charger use was heavy in last year's tests. The aim will be to ascertain the optimal number and location of charging stations and their ease of use.