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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.

Honda-Nissan-Mitsubishi alliance completes Japan car industry consolidation

Makoto Uchida (left), president and CEO of Nissan, and Toshihiro Mibe, director, president and representative executive officer of Honda, at a press conference in Tokyo on Thursday. (Getty)   Japan’s carmakers are putting the finishing touches on a combine-and-compete strategy for an automotive age defined by batteries and software, with three manufacturers joining forces to complement a separate Toyota Motor Corp.-led coalition. Honda Motor Co. and Nissan Motor Co. agreed this week to build upon a preliminary deal first reached in March, offering more details of how they plan to work together and also adding Mitsubishi Motors Corp. to the mix. While the companies havenÂ’t yet discussed a capital alliance, forming one is a possibility, Honda Chief Executive Officer Toshihiro Mibe said. The partnership will span joint work on software development, batteries and other electric-vehicle components, as well as EV charging and energy services, the three companies said. Their cozying up to one another follows Toyota acquiring stakes in Subaru Corp., Suzuki Motor Corp. and Mazda Motor Corp., and helping them navigate a fraught era for legacy car companies. Whereas Toyota has tied up with its domestic peers from a position of strength — itÂ’s been the worldÂ’s best-selling automaker for four years running — Honda, Nissan and Mitsubishi each are much smaller players on the global stage. Their coming together is seen as a move by JapanÂ’s government to fortify its auto industry in the wake of China having emerged as the worldÂ’s new No. 1 car exporter. “This is coordinated by the government to build a competitive automaking industry,” said James Hong, analyst at Macquarie Securities Korea Ltd., adding that most automakers in Japan are too small to be able to invest in EVs individually. “It feels like a politically driven alliance.” While the US has had the Big Three — General Motors Co., Ford Motor Co. and Chrysler, now owned by Stellantis NV — and Germany similarly has a trio in Volkswagen Group, BMW AG and Mercedes-Benz, Japan has a much bigger crop of carmakers manufacturing vehicles across the globe. Honda, Nissan and Mitsubishi combined sold about 4 million vehicles globally in the first six months of the year, well shy of the 5.2 million that Toyota sold on its own. While the three touted the potential for generating synergies from working together, executives also acknowledged theyÂ’ll have to overcome contrasts with their compatriots.

Recharge Wrap-up: Fiat 500X emissions, Japan EV sales down

The Fiat 500X exceeds EU emissions limits, according to environmental lobby group DUH. In dyno tests, DUH found NOx emissions in the diesel-powered 500X to be 11 to 20 times the limit with a warm engine, but closer to the limit with a cold engine. Testing of vehicles from Fiat and other automakers "point towards defeat devices," says DUH campaigner Axel Friedrich. Fiat Chrysler Automobiles (FCA) offered no comment in response to the accusations. Read more from Reuters. A UK study finds that about 20 percent of the benefits from fuel efficient vehicles are negated by a tendency for people to drive them more. The study, which covers the years 1970 to 2011, finds a significant "rebound effect," when consumers use more of a cheaper energy source. It suggests these drivers drive more not because of the fuel efficiency, but because of the lower operating costs. "Until now, we didn't know the size of this effect for British motoring," says Dr. Lee Stapleton, Research Fellow for the University of Sussex Centre on Innovation and Energy Demand. "We found evidence of a significant, long-term rebound and expect our results to be of interest for public policy." Read more at Green Car Congress. Japanese EV sales have declined for the first time ever. Sales of electric vehicles slid 22 percent in 2015, leaving them at the same levels as 2012. Low gasoline prices are to blame, as well as the late arrival of the updated Nissan Leaf, which caused potential customers to hold off on their purchase. This allowed the Mitsubishi Outlander PHEV to take the lead as Japan's best selling EV. The Toyota Prius Plug-In came in third place in EV sales, with the BMW i3 close on its heels. Read more from EV Sales. Featured Gallery 2016 Fiat 500X: First Drive View 34 Photos Related Gallery Mitsubishi Outlander PHEV Concept-S: Paris 2014 View 12 Photos News Source: Reuters, Green Car Congress, EV SalesImage Credit: Copyright 2016 Drew Phillips / AOL Green Fiat Mitsubishi Nissan Emissions Fuel Efficiency Electric recharge wrapup