2002 Nissan Altima 2.5 S on 2040-cars

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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.

10 automakers sued over keyless ignitions

Keyless ignition has rapidly proliferated throughout the auto industry to become a fairly normal feature on new cars. It's supposed to offer the convenience of keeping the fob in your pocket and just pressing a button to drive away. However, ten major automakers are now being sued in US District Court over claims that the system is dangerous, Reuters reports. The suit alleges that people are forgetting to shut off the engine, and the lack of an idle timer is the cause for 13 deaths by carbon monoxide poisoning and multiple injuries. The suit currently includes 28 plaintiffs, according to Reuters, but the lawyers are asking for class-action status to potentially add many more. The case goes after a major swath of the industry, including BMW, Daimler, FCA, Ford, General Motors, Honda, Hyundai, Nissan, Toyota, and Volkswagen, plus their related brands like Acura, Infiniti, Mini, and Lexus. In all, over five million vehicles are affected. The assertion here is that people walk away from their vehicle without shutting it off because they believe the engine shuts off automatically. If parked in a garage, carbon monoxide can build up, leading to poisoning. The lawyers claim automakers know this is a problem and also cite 27 complaints to the National Highway Traffic Safety Administration about the issue, according to Reuters. The plaintiffs are asking for an automatic shut-off and damages from the companies. These concerns have come up before, though. Toyota previously faced a lawsuit over a carbon monoxide death after a woman accidentally left her Lexus running. Also earlier this year, GM recalled 64,186 examples of the 2011-2013 Chevrolet Volt because owners weren't shutting them off. The problem resulted in two injuries, and the company released a software update to limit the idling time.

Japanese automakers will seriously subsidize hydrogen fuel stations

Fresh off the announcement of the EPA-rated fuel economy and range figures for the Toyota Mirai, three of Japan's major automakers are throwing their weight behind hydrogen on the other side of the Pacific. Toyota, Nissan, and Honda are detailing their partnership in Japan to subsidize the creation of an expanded FCV refueling infrastructure there in the coming years. The plan could provide a much-needed boost for goals that are already looking to miss their targets. The partnership, which is called the Joint Hydrogen Infrastructure Support Project, is subsidizing a third of the annual operating expenses up to a maximum of 11 million yen ($90,000) for any hydrogen refueling station that applies and is accepted into the program. For now, the automakers plan to keep this running through around 2020. Toyota senior managing officer Kiyotaka Ise tells Bloomberg the whole thing over that time is expected to cost 5 billion to 6 billion yen ($40.5 million to $49 million). In addition to the money, the companies are trying to raise awareness about the alternative fuel to build popularity. Japan has been pushing extremely hard to build the FCV market there for quite some time by subsidizing both the models and building refueling stations for them. By the 2020 Olympics, the country's goal is to have 6,000 fuel cell vehicles on the roads and possibly even 100,000 of them by 2025. The cars to fulfill these lofty hopes are just gaining steam, though. For example, the Mirai is already experiencing high demand, and Honda is set to bring its new challenger in 2016. This announcement says Nissan is aiming a potential entry for 2017, as well. According to Bloomberg, the fuel cell industry in Japan is forecasted to balloon from 400 million yen (3.3 million) in the current fiscal year to 100 billion ($813 million) by 2025. Toyota, Nissan, and Honda Agree on Details of Joint Support for Hydrogen Infrastructure Development Toyota Motor Corporation, Nissan Motor Co., Ltd., and Honda Motor Co., Ltd. have agreed on key details regarding a new joint support project for the development of hydrogen station infrastructure in Japan. In addition to partially covering the operating costs of hydrogen stations, the three automakers have also agreed to help infrastructure companies deliver the best possible customer service and create a convenient, hassle-free refueling network for owners of fuel cell vehicles (FCVs).