www.jtekt.co.jp OFFICES JTEKT CORPORATION OF U.S.A. PT. JTEKT INDONESIA -Cleveland Office- Surya Cipta City of Industry Jalan Surya Madya Kav.I-27B 29570 Clemens Road, P.O.Box 45028, Westlake, Karawang 41363, INDONESIA OH 44145, U.S.A. TEL : 62-267-8610-270 TEL : 1-440-835-1000 FAX : 62-267-8610-271 FAX : 1-440-835-9347 JTEKT MALAYSIA SDN. BHD. -Detroit Office- No.8, Jalan Palam 34/18A, Taman Perindustrian Pak Chun, 47771 Halyard Drive, Plymouth, MI 48170, U.S.A. Seksyen 34 40470 Shah Alam. Selangor, MALAYSIA TEL : 1-734-454-1500 FAX : 1-734-454-4076 JTEKT KOREA CO., LTD. Seoul Head Office Inwoo Building 6F, 539-11 Shinsa-Dong, Kangnam-Ku, JTEKT NORTH AMERICA CORPORATION Seoul, KOREA 47771 Halyard Drive, Plymouth, MI 48170, U.S.A. TEL : 82-2-549-7922 TEL : 1-734-454-1500 FAX : 82-2-549-7923 FAX : 1-734-454-7059 TAIWAN JTEKT CO.,LTD. JTEKT AUTOMOTIVE NORTH AMERICA INC. NO.23,Guangfu N.Road, Hukou Township,Hsinchu, 47771 Halyard Drive, Plymouth, MI 48170, U.S.A. Country 303,TAIWAN TEL : 1-734-454-1500 TEL : 886-3-597-2453 FAX : 886-3-597-4687 FAX : 1-734-454-7059 ( ) KOYO MEXICANA, S.A. DE C.V. JTEKT CHINA CO., LTD. Shanghai Branch Room 25A2, V-Capital Building.333 Xianxia Road, Av. Insurgentes Sur 2376-505, Col. Chimalistac, Changning District, Shanghai CHINA C.P. 01070, Del. Álvaro Obregón, México, D.F. MEXICO TEL : 86-21-5178-1000 TEL : 52-55-5207-3860 FAX : 86-21-5178-1008 FAX : 52-55-5207-3873 ( ) KOYO ROLAMENTOS DO BRASIL LTDA. JTEKT CHINA CO., LTD. Beijing Branch Av. Reboucas 2472 Jardim America, Sao Paulo-SP, BRASIL Room 1012, Fortune Building, No.5 Dong San TEL : 55-11-3372-7500 Huan North Road, Chaoyang-District, Beijing, CHINA FAX : 55-11-3887-3039 TEL : 86-10-6538-8070 FAX : 86-10-6538-8077 JTEKT (THAILAND) CO., LTD. JTEKT EUROPE S.A.S. (FRANCE) 172/1 Moo 12 Tambol Bangwua, Amphur Bangpakong, Zone Industrielle du Broteau, B.P.1, 69540 Irigny, FRANCE Chachoengsao,24180, THAILAND TEL : 33-4-7239-4444 TEL : 66-38-533-310~7 FAX : 33-4-7851-2188 FAX : 66-38-532-776 JTEKT AUTOMOTIVE (THAILAND) CO., LTD. JTEKT EUROPE BEARINGS B.V. Benelux Branch Office Energieweg 10a, 2964 LE Groot-Ammers, THE NETHERLANDS 107 Moo 4 T.Pluakdaeng A.Pluakdaeng Rayong 21140, TEL : 31-184-606800 THAILAND FAX : 31-184-606857 TEL : 66-38-954320 FAX : 66-38-954321 PUBLISHER JTEKT CORPORATION NAGOYA HEAD OFFICE No.7-1, Meieki 4-chome, Nakamura-ku, Nagoya, Aichi 450-8515, JAPAN TEL:81-52-527-1900 FAX:81-52-527-1911 JTEKT CORPORATION OSAKA HEAD OFFICE No.5-8, Minamisemba 3-chome, Chuo-ku, Osaka 542-8502, JAPAN TEL:81-6-6271-8451 FAX:81-6-6245-3712 Sales & Marketing Headquarters No.5-8, Minamisemba 3-chome, Chuo-ku, Osaka 542-8502, JAPAN TEL:81-6-6245-6087 FAX:81-6-6244-9007 CAT.NO.S1001E Printed in Japan '14.03-2CCH('13.11) CAT.NO.S1001E Safer, More Reliable Power Steering Systems Safety, Comfort & Ecology SAFETY COMFORT ECOLOGY Reliability backed by experience, immeasurable sensitivity and technologies, and energy-saving features in tune with the times to Customers Worldwide Proudly No.1 in the Global Market One in three vehicles is equipped with JTEKT electric power steering (EPS) Share No.1 GLOBAL NETWORK EPS:29%*(C-EPS:39%) Unit : 10,000 Unit : 10,000t (CO2) 1 2000 100 3 RP-EPS PRODUCTION QUANTITY 1 90 1 1 Quantity of carbon dioxide reduction 6 1988 2004 2011 80 1 Start of production 1500 Start of production Start of production EUROPE 2 JAPAN of C-EPS (For small car) of RD-EPS of DP-EPS 70 2001 2002 NORTH Start of production 60 Start of production The World First of E-VGR AMERICA of C-EPS Our goal is sensational driving experiences – JTEKT 1000 (For compact car) 50 1991 1994 40 ASIA Start of production Start of production of H-EPS of P-EPS A Feeling of Unity between Driver and Car, 30 500 Start of Manual Steering 20 and Steering Feel That Stimulates the Senses... 2 SOUTH 17 Start of 10 2 AMERICA 2 Power Steering 1 "Driving," "Cornering" and "Stopping." 5 1960 1970 1980 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2013 2014 2016 2018 Of the three basic vehicle performance functions, our forte is "Cornering." Committed to producing superior steering equipment, EPS start of production overseas 2007 China / Thailand 2011 Indonesia 1998 Europe 2001 North America JTEKTJTEKT has developed been conducting the world's activities first electric to ensurepower steering compliance (EPS ) system in 1988. 2009 India withToday, functional our products safety hold standards No. 1 market in accordance share around the globe. with ISO26262 Road Vehicles Requirements – Functional Safety since 2005. ・Project ・ Automobile ownership layer expands Demand for higher fuel efficiency increases Demand for higher fuel efficiency increases even more management management Specifications ・Labor ・ Social change Front-engine management management / Front-wheel-drive adopted Regulations Stricter CO2 regulations Sales of vehicles equipped Increase in vehicles equipped with engine-stop idling Automobile technology for compact passenger cars for light vehicles (660cc) change with collision avoidance system begins moves ahead More electric vehicles enter the market trends Increase in Introduction of green taxation plan Sales of vehicles equipped Sales of electric vehicles begins hybrid electric vehicles JC08 mode fuel consumption indicator introduced ・Process with airbags begins (Prius launched) management ・Structure Ensuring the Delivery of Safer, management Japan Europe More Reliable Steering trends Manual Hydraulic power steering Hydraulic power steering Electric power steering Electric power steering in high output range Power Steering Systems 1960 1970 1980 1990 1995 2000 2005 2010 2015 America Development Activities streamlined process using management tool introduced (2013) (2011) ( ) Global organization Proposal of optimal electric power steering EPS system considering safety, comfort and ecology established Activities started As the world's No.1 contributor to the environment,※ JTEKT a comprehensive steering systems manufacturer committed to providing optimal systems that match vehicle use/purpose by ensuring products are well-balanced in all areas; from quality, cost and delivery to safety, comfort and ecology. ( ) (2005) 2009 ※ JTEKT is world No. 1 in contributing to the environment. Our EPS systems have top market share, offer superior fuel efficiency and contribute to environmental conservation to the highest degree. We are also working to improve the environmental efficiency of conventional hydraulic power steering systems. Electric Power Steering Systems 03 / 04 H-EPS Basic steering operation A Confident, Relaxing Driving Experience… ● Excellent safety, comfort and environmental performance realized using Steering wheel is turned. an energy-saving hydraulic power steering system equipped with an electric pump. 1 Steering wheel That's what our steering systems provide ● Extremely flexible installation and ability to use for EV driving realized by adopting an independent electric pump. Interface used by the driver to transmit Reliability backed by ● desired directionExcellent of travel steering to the steeringfeel and improved fuel efficiency realized through optimum discharge setting (MAP) and special valve tuning. experience system. 2 The force input to the steering wheel (torque) twists the torsion bar. SAFETY 3 Torsion bar twisting is detected as a Steering System Features torque signal by the torque sensor Steering and input into the ECU. Column Steering System Configuration Electric pump / ECU force Range of use (power pack) 1 ＋ Intermediate shaft Definition of steering system: Components used to control (steer) the direction a vehicle is moving; in short, Helical gear reduces pulsation, and compact / lightweight design realized the equipment for changing the direction of the tires. HPS gear 0 Torque signal Torque Hydraulic power steering - - 0 ＋ (HPS) gear Torsion bar twist H-EPS system Steering column ECU adds electric current to the Attaches the steering wheel axle inside the cabin, and is equipped Electric pump / ECU4 (power pack) with an energy absorption mechanism to dissipate impact energy motor based on torque signal and JTEKT responds to and reduce injury to the driver at the time of a collision. Comfortable steering feel realized vehicle speed. market demand in Intermediate shaft by optimal tuning of low-flow valve Shaft connecting the steering column to the pinion gear. Immeasurable Motor electric current Motor electric current (A) sensitivity support of a (Motor rotating torque) and technologies 2 Torsion bar vehicle society of Metal bar that is twisted according to the steering force input by the driver. (Turning left) (Turning right) COMFORT Torque sensor ０ Torque signal tomorrow as a 3 High vehicle speed Detects the amount of torque generated when the torsion E-VGR steering system supplier. bar is twisted. Low vehicle speed ● Variable steering-angle ratio system combining vehicle stability and steering performance. ● Steering performance improved by increasing steering angle ratio at low speed. ● Straight-line driving stability improved by decreasing steering-angle ratio at high speed. 5 Motor rotating torque is increased by ● Vehicle stability improved by activating low-friction moment, etc. the reduction gear and transmitted to the pinion. 6 Rack-and-pinion gear Pinion rotating torque (supplemental Converts the rotating motion of the steering wheel 6 Rack axial force input by the driver to straight horizontal movement to steering torque) on the power-assist the rack bar via the pinion gear (force applied to change tire direction) side and pinion rotating torque (steering rotating torque) on the 4 ECU steering-wheel side are converted to Calculates the amount of power-assist required System combination: rack axial force to change tire according to driver’s steering force and vehicle Energy-saving speed signal.