Mazda6 from A to Z A erodynamics 4-5 B ose® 6 C F-Net 7 D esign 8 E PAS (Electric Power Assist Steering) 9 F ilter 10 G eneration 11 H MI (Human Machine Interface) 12 I llumination 13 J apan 14-15 K izuna 16 L ED 16 Miyoshi 17 N VH 18-19 O berursel 20 P rototype 20 Q uality 21 R in 22 S eichi 22-23 T oluene 24 U meshita 25 V olume 26 Weight 27-29 X enon 30 Y ugen 31 Z oom-Zoom Evolution 32 2 www.mazda-press.com Rear tyre defl ectors: often used on sports cars, rear Horseshoe-shaped defl ectors smooth the airfl ow behind the vehicle. front tire defl ectors: A erodynamics this is not only effective in reducing air resistance and From the early stages of design development, the designers, aerodynamics engineers and improving stability the Programme Manager - Umeshita - put their heads together to achieve class-leading at high speeds, but in improving brake aerodynamics. Following plenty of simulation, wind tunnel testing (almost 40 sessions and cooling as well. more than 300 hours) and numerous hurdles, the engineers persevered and conducted a thorough analysis for improvement. Radiator cover: this One of the highlights is the horseshoe-shaped tyre defl ector, which solved a very diffi cult is newly added to the issue of balancing out aerodynamics and brake cooling. With the early stage tyre defl ectors underbody and the (board type), it was diffi cult to bring in air to reach the brakes. Thereafter, Ohira, in charge shape is optimized. By smoothing out the airfl ow of aerodynamics, went to the wind tunnel to re-evaluate wind fl ow and developed the at the entrance to the horse shoe shape tyre defl ectors. Further particulars like the defl ectors hitting the curb underbody, air resistance Rear cover: this cover mainly improves airfl ow to the while parking or snow sticking to the defl ectors were tackled… until the current shape and is reduced. under body at the rear, reducing air resistance as well as position were achieved. improving stability at high speeds. Note that specifi c centre underbody parts are adopted for Europe. About Mazda‘s wind tunnel... Mazda‘s Aerodynamics Testing Laboratory was established in 1983 and is capable of conducting tests on various model sizes, from one fi fth scale models to 1/1 size. The blower “By reducing the air resistance can produce a maximum level, when driving on the wind speed of 230 km/h. autobahn, the all-new Mazda6 Aerodynamic specialists accelerates smoothly up from Cd Current Mazda6 New Mazda6 also simulate snowfalls and 200 km/h, the point where the Sedan/Hatchback 0.30 0.27 rain conditions to test the air resistance could be felt in the Estate 0.32 0.28 rear and side windows. previous model”explains Ohira, responsible for aerodynamics. 4 www.mazda-press.com B ose® C F-Net The Bose® Sound System for the Mazda6 CF-Net stands for “Cross-Functional Enhancing the driving experience in the Mazda6 is the eight-speaker 240W Bose® sound system which is customized specifi cally for the Mazda6 cabin to help reproduce music Network” with more of the power and emotion of a live performance. Speakers are as follows: n°1 for mid-high-range speaker, n°2 for two tweeters, n°3 and n°4 for four low-mid-range The CF-Net system helps the driver to speakers, n°5 for a Richbass® woofer in a 10-litre custom-engineered bass enclosure in operate safely and conveniently the main the spare tire wheel well - 5HB and wagon only). AudioPilot® noise-compensation (n°6 information and entertainment systems for the digital amplifi er and n°7 for the interior noise level monitoring microphone) of the car (Audio, Navi, Trip Computer, Air technology helps preserve the listening experience when confronted with the effects of Conditioning and other systems such as a unwanted outside sound and vehicle speed. Bluetooth mobile phone device) without removing his hands from the steering The system has been built as part of the car to preserve passenger and cargo space. wheel, a true improvement in terms of active safety. During the testing sessions, an engineer was covered with monitoring cameras to check what the benefi ts time-wise are of this more instinctive system. The results showed operation times shorter by 20 to 30% compared to well-known premium brand selection-mode systems. The name “Cross-Functional Network” doesn’t just mean the gathering of functions in one place, but also the cooperation of different departments within the Mazda R&D community to work as one team to develop this new feature. 6 www.mazda-press.com D esign E PAS (Electric Power Assist Steering) After evaluating hundreds of sketches, the proposals came down to 4 quarter-scale models. After subsequent customer clinics in Europe, two models were completed at 1/1-scale (see below : A and B). In March 2005, the team chose model A for its stronger A newly-developed electric power assist steering system with speed sensitive control character. is utilised on the new Mazda6. This improves steering rigidity feel and straight ahead Model A Model A Model B stability. It also improves fuel consumption by up to 2%. Gear and link assembly Rack-drive arrangement helps to Overall steering-gear ratio of 15.4 helps to minimize inertia and friction realize the Mazda performance DNA Whereas most of these kinds of systems are fi xed on the column, this one is directly fi xed on the rack like on our RX-8 sports car. The system is in fact an updated version of the one used on the RX-8 and utilizes a small brushless motor to hold the inertia level, which is a fi rst for Mazda. A main goal for this project was to fi nally bring Japanese aesthetics into the car and A total of approximately 150 different specifi cations were tested during the create a Japanese car design identity, just as Europeans carmakers have built cars that development. express their own culture - the best examples during the last decades being Italian and German cars (see letterJ, Japan). The Japanese character of Mazda6’s design is based on 3 pillars : Rin, Seichi and Yugen (refer to letters R, S and Y). 8 www.mazda-press.com F ilter Generation The diesel engines now include new refi nements. Beyond optimizing NVH, injection, The tradition of C/D segment (family- efforts focused on emissions and fi ne-tuning the diesel particulate fi lter material. sized) vehicles at Mazda began in 1967 The new diesel particulate fi lter system is enhanced for heat resistance and also the with the 1500. This elegant, 4.37 m regeneration interval is expanded. car was designed by Bertone, ensuring a dynamic styling. Key attributes As was already the case with the fi rst-generation Mazda6, the second generation will be have always been found in Mazda’s offered with a diesel particulate fi lter system as standard. C/D vehicles ensuring that they were emotional & sporty with an insightful package. In 1987, the Mazda 626/Capella introduced an unbelievable Four Wheel Steering System – the fi rst of its kind in the world - to enhance the pleasure of driving the car’s supercharged diesel engine, which raised diesel engines to a new level of performance. It was designed as a family car with no compromises on volume and luggage capacity. It is a maintenance-free system that lowers soot particulates to 5 milligrams Obviously the highlight of this tradition (far below the EU limit of 25 milligrams per km driven). When full, the regeneration came in 2001 with the introduction of the diesel particulate fi lter is done automatically simply by driving at least at the Tokyo Motor Show of the fi rst- 15 minutes at a minimum speed of 40 km/h and 2,000 rpm: a normal on-road situation generation Atenza*/Mazda6. for a diesel vehicle driver! *name for the Japanese market. 10 www.mazda-press.com HMI (Human Machine Interface) I llumination For more than 20 years, in parallel with computer developments, the automotive Illumination in a Mazda cockpit industry has been studying how to make vehicle-driver/passenger communication easier. is part of the Zoom-Zoom As we spend several hours a day in our vehicle, any improvement in the HMI adds to experience. Seen fi rst in 2003 the pleasure of ownership. To this end, Mazda brings a welcoming spirit inspired by the in the Mazda3 the “Action Japanese tradition. For centuries guests of honourable houses are welcomed by bowing Illumination” can be enjoyed people all along the path leading up to the main door. In homage to this tradition, the every time you adjust the new Mazda6 has a “bottom to top” welcome with a halo of light… volume of the audio system. This concept was developed further in the Sassou concept car (Frankfurt 2005) where every input reacted with a heartbeat of light fl owing to the speakers or the air conditioning unit, showing the path of the input to the driver. This is evolved further in the new Mazda6 with edged audio buttons with lights that come on, go off, and fl ash in a fade- on/fade-off manner for intuitive feedback to the user’s button- pushes. Illumination is in blue. Besides “Action Illumination,” Mazda6 features a driver- The human-machine interface interacts with other elements such as the “cross- friendly Welcome mode (see functional network” (see letter C) when giving a command on the steering wheel to letter H, HMI) and a blue night access very instinctively the audio, navigation, air conditioning and trip computer.