Paige Dodd. Mazda. October 31st , 2017.
The SKYACTIV-G petrol engines are likewise a product of Mazda non-stop efforts to continue advancing the Jinba-Ittai driving sensation. Like the SKYACTIV-D, this means smoothly delivering the ideal linear response to driver input, behaving precisely as intended and providing the corresponding feedback. The engines are mated to six-speed SKYACTIV-Drive automatics or SKYACTIV-MT manual transmissions. i-stop, idle stop system providing some of the fastest restarts around, is standard equipment, while i-ELOOP, Mazda unique brake energy regeneration system, is available for all powerplants except the 145PS versionof the SKYACTIV-G 2.0. Diesel-powered Mazda 6 wagons are also offered with Mazda intelligent i-ACTIV AWD system, which features a front-slip detection warning system.
The 2017 Mazda 6s comprehensive range of active and pre-crash safety systems includes Blind Spot Monitoring (BSM). Its 24GHz radar keeps track of vehicles approaching from behind (as close as 2m) and in adjacent lanes (up to 8m to the side and 50m behind) at 30km/h and up, visually and audibly altering drivers should they signal a lane change. BSM includes Rear Cross Traffic Alert (RCTA), which uses BSM sensors and signals when the car is reversing. Lane-keep Assist System (LAS) monitors the road markings via the forward sensing camera at 60km/h and up, warning the driver of unintentional lane changes (e.g. without using the turn signal) by vibrating the steering wheel. LAS even provides steering torque assistance to return the vehicle to the centre of its lane. Adaptive LED Headlights (ALH), which debuted on the 2015 Mazda 6, combines glare-free LED high beams and wide-range low beams with an auto-levelling function. Each headlamp has four LED blocks that can be shut off individually to avoid impairing other motorists vision. The low beams greatly broaden coverage and with it visibility at places like intersections.
The next is the Natural Sound Smoother. Recently introduced on the SKYACTIV-D 1.5 in the Mazda 3, it has now been adapted for Mazda larger diesel. The technology uses a damper placed in the hollow part of each piston pin to stifle diesel knock in the 3.5kHz range. This is the engine noise most conspicuous in the cabin and typically experienced when starting from a standstill or accelerating gradually. Natural Sound Frequency Control, meanwhile, complements the Natural Sound Smoother by supressing the other three critical frequency bands (1.3kHz, 1.7kHz and 2.5kHz) where diesel powerplant components typically vibrate loudest. It does so by deviating the engine timing ever so slightly (in 100 microsecond units), thereby causing the pressure waves produced before, during and after combustion to cancel each other out. This reduces combustion-induced vibration and the resulting cabin resonance.
A 15.5% increase in torsional rigidity over the current model reduces flexing that might otherwise slow the vehicle response to steering input from the driver. Increased use of ultra-high strength materials including 1,180MPa steel on the A-pillars and 980MPa steel on the side sills and B-pillars. To enable stress-free conversation in the cabin, great effort was devoted to reducing the low-frequency road noise heard when driving on coarse surfaces as well as high-frequency wind and tire noise when travelling at higher speeds. Compared to the outgoing model, the all-new Mazda CX-5 achieves around 10% clearer conversation levels in the cabin at a cruising speed of 100km/h and reduces noise by some 1.3dB when traveling on rough roads.
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