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Green self-driving cars take center stage in Tokyo

Visions of cars that drive themselves without emitting a bit of pollution while entertaining passengers with online movies and social media are what's taking center stage at the Tokyo Motor Show. Japan, home to the world's top-selling automaker, has a younger generation disinterested in owning or driving cars. The show is about wooing them back. It's also about pushing an ambitious government-backed plan that paints Japan as a leader in automated driving technology. Reporters got a preview look at the exhibition Wednesday, ahead of its opening to the public Oct. 30. Nissan Motor Co. showed a concept vehicle loaded with laser scanners, a 360 degree camera setup, a radar and computer chips so the car can "think" to deliver autonomous driving. The Japanese automaker called it IDS, which stands for "intelligent driving system." Nissan, based in Yokohama, Japan, said it will offer some autonomous driving features by the end of next year in Japan. By 2018, it said vehicles with the technology will be able to conduct lane changes on highways. By 2020, such vehicles will be able to make their way through intersections on regular urban roads. Nissan officials said they were working hard to make the car smart enough to recognize the difference between a red traffic light and a tail light, learn how to turn on intersections where white lane indicators might be missing and anticipate from body language when a pedestrian might cross a street. Nissan's IDS vehicle is also electric, with a new battery that's more powerful than the one currently in the automaker's Leaf electric vehicle. Although production and sales plans were still undecided, it can travel a longer distance on a single charge and recharge more quickly. A major challenge for cars that drive themselves is winning social acceptance. They would have to share the roads with normal cars with drivers as well as with pedestrians, animals and unexpected objects. That's why some automakers at the show are packing the technology into what looks more like a golf cart or scooter than a car, such as Honda Motor Co.'s cubicle-like Wander Stand and Wander Walker scooter. Instead of trying to venture on freeways and other public roads, these are designed for controlled environments, restricted to shuttling people to pre-determined destinations. At a special section of the show, visitors can try out some of the so-called "smart mobility" devices such as Honda's seat on a single-wheel as well as small electric vehicles.

Is the skill of rev matching being lost to computers?

If the ability to drive a vehicle equipped with a manual gearbox is becoming a lost art, then the skill of being able to match revs on downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. The usefulness of rev matching in street driving is limited most of the time – aside from sounding cool and impressing your friends. But out on a race track or the occasional fast, windy road, its benefits are abundantly clear. While in motion, the engine speed and wheel speed of a vehicle with a manual transmission are kept in sync when the clutch is engaged (i.e. when the clutch pedal is not being pressed down). However, when changing gear, that mechanical link is severed briefly, and the synchronization between the motor and wheels is broken. When upshifting during acceleration, this isn't much of an issue, as there's typically not a huge disparity between engine speed and wheel speed as a car accelerates. Rev-matching downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. But when slowing down and downshifting – as you might do when approaching a corner at a high rate of speed – that gap of time caused by the disengagement of the clutch from the engine causes the revs to drop. Without bringing up the revs somehow to help the engine speed match the wheel speed in the gear you're about to use, you'll typically get a sudden jolt when re-engaging the clutch as physics brings everything back into sync. That jolt can be a big problem when you're moving along swiftly, causing instability or even a loss of traction, particularly in rear-wheel-drive cars. So the point of rev matching is to blip the throttle simultaneously as you downshift gears in order to bring the engine speed to a closer match with the wheel speed before you re-engage the clutch in that lower gear, in turn providing a much smoother downshift. When braking is thrown in, you get heel-toe downshifting, which involves some dexterity to use all three pedals at the same time with just two feet – clutch in, slow the car while revving, clutch out. However, even if you're aware of heel-toe technique and the basic elements of how to perform a rev match, perfecting it to the point of making it useful can be difficult.

Nissan files civil suit against Ghosn, seeking $91 million in damages

TOKYO — Nissan filed a civil suit Wednesday seeking 10 billion yen ($91 million) in damages from the Japanese automaker's former Chairman Carlos Ghosn. Nissan filed the case in Yokohama District Court to recoup some of the monetary damages suffered, it said, “as a result of years of misconduct and fraudulent activity" by Ghosn. The claim was calculated by adding the costs from what Nissan called Ghosn's “corrupt practices,” such as rent for overseas property, use of corporate jets and payments to Ghosn's sister, as well as costs for the internal investigation into Ghosn's alleged wrongdoings. Representatives of Ghosn said in a statement they couldn't comment as they had yet to see the legal documents. “Nissan's maneuvers continue,” they said, while noting Nissan had claimed larger damages before. Ghosn, who led Nissan for two decades and saved it from near-bankruptcy, was arrested in Japan in November 2018, and charged with underreporting his future compensation and breach of trust in diverting Nissan money for personal gain. He was awaiting trial but skipped bail and showed up in Lebanon late last year. Japan has no extradition treaty with Lebanon, and he's unlikely to be arrested. A date had not been set for his trial, and Ghosn has said he was worried his ordeal would never end and he would not get a fair hearing. The bail conditions also barred him from seeing his wife. He has repeatedly lashed out at Japan's judicial system, where the conviction rate is higher than 99%. Japanese authorities recently issued an arrest warrant for Ghosn and three Americans, accused of helping his escape. Separately, they issued an arrest warrant for Ghosn's wife on suspicion of perjury. Ghosn has repeatedly said he is innocent, saying that the promised compensation had never been decided, and all the payments were for legitimate services. Wednesday's lawsuit by Nissan comes on top of the civil case Nissan filed against Ghosn in the British Virgin Islands in August last year. It alleged unauthorized payments, sought to regain a luxury yacht and pursued other damages, according to Nissan. Yokohama-based Nissan, which makes the Z sportscar, Leaf electric car and Infiniti luxury models, is also facing trial in Japan as a company in relation to Ghosn's scandal. It has indicated it will agree to any penalties. Nissan's reputation has been sorely tarnished over the Ghosn fiasco, and its sales have dropped. Nissan reports financial results Thursday.