. please improve it by verifying the claims made and adding inline citations . statements consisting only of original research should be removed . april 2015 learn how and when to remove this template message trw automotive former type public traded as nyse trw industry automotive industry fate acquired predecessor trw inc. successor zf trw automotive holdings corp founded 2002 defunct 2015 headquarters livonia michigan 1 united states number of locations 200 facilities area served worldwide key people john c. plant chairman & ceo products automotive systems revenue us 16.4 billion fy 2012 operating income us 1.09 billion fy 2012 net income us 1.01 billion fy 2012 total assets us 10.9 billion fy 2012 total equity us 3.70 billion fy 2012 number of employees 66 100 website www.trw.com footnotes references 2 trw automotive headquartered in livonia michigan 1 was an american global supplier of automotive systems modules and components to automotive original equipment manufacturers oems and related aftermarkets . in 2015 trw automotive was acquired by zf friedrichshafen and subsequently has been renamed zf trw automotive holdings corp. 1 3 trw formally stood for thompson ramo wooldridge ; it was formed when thompson products merged with ramo wooldridge in 1958 . 4 the company operated primarily surrounding the design manufacture and sale of safety systems . it operated approximately 200 facilities with 66 100 employees in 26 vehicle producing countries . contents 1 history 2 automotive history 3 contributions 4 references 5 external links history edit when aerospace company northrop grumman purchased competitor trw in 2002 it sold trw s automotive division to private equity firm blackstone group . trw automotive went public in a february 2004 initial public offering ipo after which blackstone held a 56.7 % interest in trw northrop grumman 17.2 % and trw management 1.7 % . the company can trace its history back to trw inc s beginnings in 1901 but was founded as trw automotive in 2002 . on september 15 2014 it was announced that german car parts maker zf friedrichshafen will buy trw automotive for approximately 13.5 billion including debt . 5 6 the takeover was completed on the 15th may 2015 and trw automotive now operates as part of zf friedrichshafen ag as division active & passive safety technology . 7 automotive history edit 1904 first two piece automotive valve for winton motors company 1909 wooden wheels for ford model t 1928 parking brakes for ford 1932 composite brake drum 1935 wedge roller actuated drum brake 1939 standard equipment hydraulic brake systems 1946 power brake systems 1952 integral power steering system for chrysler new yorker 1957 disc brake system europe 1964 brake proportioning valves 1964 disc braking system north america 1967 rack and pinion steering 1968 electronically controlled anti lock braking system 1972 power rack and pinion steering 1979 colette front calipers 1986 rear wheel abs system 1987 seat belt pre tensioning device 1988 remote keyless entry system 1989 switches made in trw sunderland 1994 complete vehicle occupant restraint system 1994 four wheel abs systems for gm 1994 frontal airbag and sensor system 1994 single source production of vehicle occupant restraint system 1994 solid propellant frontal airbag system including crash sensors 1996 electronic actuation system with brake assist 1998 electrically powered hydraulic steering 2001 airbag rollover canopy system 2001 electrically powered steering 2001 vehicle stability control 2002 active control retractor 2002 adaptive cruise control 2002 electric park brake 2003 weight based occupant classification system 2004 silicon initiator technology for airbag inflators 2004 touch sensor technology capacitive sensing for interior vehicle controls 2005 active dynamic control family of active suspension systems 2006 non rotating driver airbag technology 2006 slip control boost hybrid braking stability control technology 2007 efficient climate control system to maintain occupant comfort and enhance fuel economy 2007 electric drum in hat park brake technology 2007 esc r regenerative brake technology for hybrid vehicles 2008 active buckle lifter seat belt system to enhance convenience comfort and safety 2008 first lane keeping system integrating camera and electric steering technology 2008 head protection system for convertible vehicles 2008 scalable airbag electronic control unit for emerging markets 2015 acquired by zf friedrichshafen contributions edit trw automotive sponsored a first robotics team team 308 based in walled lake mi references edit a b c http www.hoovers.com company information cs company profile.trw automotive holdings corp.06911874d79b0070.html trw automotive holdings corp. trw . yahoo finance . http www.trw.com abouttrw locations who really made your car . retrieved august 4 2011 . kim soyoung ; taylor edward september 15 2014 . germany s zf to take over trw automotive for 13.5 billion . reuters . retrieved september 16 2014 . brower piven announces investigation of trw automotive holdings corp. in connection with the proposed sale of the company to zf friedrichshafen . business wire . september 15 2014 . retrieved september 16 2014 . zf schlie t bernahme von trw automotive ab . retrieved 2015 05 15 . external links edit trw inc. website v t e trw inc. subsidiaries lucas industries lucasvarity trw automotive products chandra x ray observatory compton gamma ray observatory descent propulsion system functional flow block diagram high energy astronomy observatory program high energy astronomy observatory 1 high energy astronomy observatory 2 einstein observatory high energy astronomy observatory 3 n2 chart pioneer 1 pioneer 10 pioneer 11 tr 201 trw low maintenance rifle people simon ramo dean wooldridge related articles the aerospace corporation goodrich corporation northrop grumman v t e the blackstone group founders peter george peterson stephen a. schwarzman business services cms computers rgis sungard minority shareholder consumer retail michaels joint control performance food group pinnacle foods united biscuits financial services bankunited minority stake healthmarkets minority stake fgic minority stake healthcare biomet emcure pharmaceuticals investment vanguard health systems industrial freescale joint control kl ckner pentaplast trw automotive control media telecommunications eaccess investment nielsen holdings minority stake axtel minority stake deutsche telekom minority stake tdc minority stake the weather channel minority stake travel & leisure hilton worldwide center parcs europe freehold caesars entertainment corporation minority stake merlin entertainments minority stake seaworld entertainment tragus group travelport real estate extended stay america minority stake equity office luxury resorts lxr la quinta inns & suites retrieved from https en.wikipedia.org w index.php title trw automotive & oldid 744071001 categories auto parts suppliers of the united statestrw inc.manufacturing companies based in michigancompanies based in wayne county michiganlivonia michiganvehicle manufacturing companies established in 2002manufacturing companies disestablished in 20112002 establishments in michigan2011 disestablishments in michiganblackstone group companiescompanies listed on the new york stock exchangehidden categories articles that may contain original research from april 2015all articles that may contain original research navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version in other projects wikimedia commons languages deutsch fran aisbahasa indonesiarom n edit links this page was last modified on 12 october 2016 at 23 17 . text is available under the creative commons attribution sharealike license ; additional terms may apply . by using this site you agree to the terms of use and privacy policy . wikipedia is a registered trademark of the wikimedia foundation inc. a non profit organization . privacy policy about wikipedia disclaimers contact wikipedia developers cookie statement mobile view