2011 Suzuki CSR Report - global suzuki

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Introduction Special Topics Corporate Philosophy and CSR Environmental Responsibility Social Responsibility Data 01 Efforts for Development SUZUKI CSR REPORT 2011 2Efforts for Vehicle Interior Noise Also, to provide comfort and quiet interior environment to users, we are promoting reduction of vehicle interior noise by improving noise sources and taking sound absorption, sound insulation, and vibration damping measures. Examples of Noise Reduction Measures for New MR Wagon ·Adopt a new-type engine. ·Change the engine mount supporting method and adopt a hydraulic engine mount. ·Improve the body structure. ·Adopt low-vibration bush for the front suspension. ·Employ a sound absorption type ceiling. ·Enlarge the dash silencer. ·Absorb engine room noise. ·Install a sound insulation cover in the fender. New MR Wagon Motorcycles ■Reducing Exhaust Gas 1Activities for All Models Suzuki is working to meet the Euro 3 regulations in Europe to reduce emissions from its motorcycles. In addition, we are developing vehicles conforming to local emission regulations in Asian countries such as India, China, Indonesia, Thailand, etc. in order. (In fiscal 2010, GT125 in India, EN150 in China, FL125FS in Thailand, etc. met the regulations.) 2Example of Applied Product GSX-R600 released (for Europe) in January 2011 is equipped with the PAIR*, O2 sensor feedback control, and metal honeycomb catalyst to reduce gas emissions, and satisfies the Euro 3 regulations in Europe. * PAIR : Pulsed-AIR injection ■Reducing Noise 1Activities for All Models We have been making efforts to reduce motorcycle noise, aiming to reduction of road traffic noise, which is regarded as one of the serious environmental issues. As a result, all models in Europe have satisfied the EC Directive 2009/108/EC. 2Example of Applied Product The following describes our noise reduction efforts, taking an example of GSR750. GSR 750 is designed to minimize the weight increase, while employing many noise reduction structures in order to satisfy the noise regulations in Europe. 1 O2 sensor 4 Metal honeycomb catalyst 2 3 ● 46 ●
Introduction Special Topics Corporate Philosophy and CSR Environmental Responsibility Social Responsibility Data 01 Efforts for Development SUZUKI CSR REPORT 2011 The air cleaner is made of resin with additive agent included. In addition to this resin material, the rib structure assures optimum rigidity and establishes both noise reduction performance and weight reduction. Rib structure ❸A rubber damper has been installed on the drive sprocket, resulting in reduction of drive chain’s engagement noises. Rubber damper Air cleaner Engine sprocket ❷The rib structure on the back of the engine sprocket cover is optimized by CAE analysis to assure both the resonant sound measures and weight reduction. Measures are taken similarly to the engine case to reduce radiated sound from the wall. ❹As for mufflers that reduce exhaust sound, the structure in the muffler is optimized by CAE* analysis to assure both damping performance and weight reduction. Engine sprocket cover Engine case 3Future Technology With the use of CAE*, we are now developing a lightweight and efficient noise reduction system through the optimization of sound deadening structure and the adoption of lighter and more effective noise absorbing and vibration damping materials. At the same time, we are promoting more efficient development by introducing necessary facilities for performing higher accuracy tests. * CAE : Computer Aided Engineering Designing and manufacturing of products and/or advance verification of process design, making use of computer technology. Outboard Motors ■Reducing Exhaust Gas Suzuki outboard engines satisfy the requirements of the 2008 emission regulation values set by California Air Resources Board (CARB), the secondary regulation values set by the U.S. Environmental Protection Agency (EPA), and the 2011 marine engine emission voluntary regulation values (secondary regulation) by Japan Boating Industry Association. Secondary EPA Regulation Values and Suzuki Model's Emission Values HC+NOx discharge amount (g/kW・hr) 40 30 20 10 0 HC+NOx EPA Secondary Regulation 50 100 150 200 Output (kW) ● 47 ●
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2011 Suzuki CSR Report - global suzuki

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