An electronic control unit ( ECU ), also known as an electronic control module ( ECM ), is an embedded system in automotive electronics that controls one or more of the electrical systems or subsystems in a car or other motor vehicle .
11-1146: [REDACTED] Look up ECU or ecu in Wiktionary, the free dictionary. ECU may refer to: Currencies [ edit ] European Currency Unit , precursor to the euro Écu , French coins of the 13th–19th centuries Technology [ edit ] Electronic control unit Engine control unit Universities [ edit ] East Carolina University , in Greenville, North Carolina, United States East Central University , in Ada, Oklahoma, United States Edith Cowan University , in Perth, Australia Emily Carr University of Art and Design , in Vancouver, Canada Other uses [ edit ] Eastman Credit Union , an American credit union ÉCU The European Independent Film Festival Ecuador 's country code Eighth Creative Union of MEPhI ,
22-402: A Russian theatre company End Citizens United , a PAC working to get big money out of politics European Chess Union Evidence Control Unit Extensor carpi ulnaris muscle Extreme close-up Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title ECU . If an internal link led you here, you may wish to change
33-402: A Russian theatre company End Citizens United , a PAC working to get big money out of politics European Chess Union Evidence Control Unit Extensor carpi ulnaris muscle Extreme close-up Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title ECU . If an internal link led you here, you may wish to change
44-399: A failure during run time and help perform repairs. Some people may wish to modify their ECU so as to be able to add or change functionality. However modern ECUs come equipped with protection locks to prevent users from modifying the circuit or exchange chips. The protection locks are a form of digital rights management (DRM), the circumventing of which is illegal in certain jurisdictions. In
55-570: A single one. Sometimes an assembly incorporates several individual control modules (a PCM often controls both the engine and the transmission). Some modern motor vehicles have up to 150 ECUs. Embedded software in ECUs continues to increase in line count, complexity, and sophistication. Managing the increasing complexity and number of ECUs in a vehicle has become a key challenge for original equipment manufacturers (OEMs). The development of an ECU involves both hardware and software required to perform
66-642: Is carried out by Tier 1 suppliers based on specifications provided by the OEM . As part of the development cycle, manufacturers perform detailed FMEAs and other failure analyses to catch failure modes that can lead to unsafe conditions or driver annoyance. Extensive testing and validation activities are carried out as part of the Production part approval process to gain the confidence of the hardware and software. On-board diagnostics or OBD help provide specific data related to which system or component failed or caused
77-448: The following: engine control module (ECM), powertrain control module (PCM), transmission control module (TCM), brake control module (BCM or EBCM), central control module (CCM), central timing module (CTM), general electronic module (GEM), body control module (BCM), and suspension control module (SCM). These ECUs together are sometimes referred to collectively as the car's computer though technically they are all separate computers, not
88-854: The 💕 [REDACTED] Look up ECU or ecu in Wiktionary, the free dictionary. ECU may refer to: Currencies [ edit ] European Currency Unit , precursor to the euro Écu , French coins of the 13th–19th centuries Technology [ edit ] Electronic control unit Engine control unit Universities [ edit ] East Carolina University , in Greenville, North Carolina, United States East Central University , in Ada, Oklahoma, United States Edith Cowan University , in Perth, Australia Emily Carr University of Art and Design , in Vancouver, Canada Other uses [ edit ] Eastman Credit Union , an American credit union ÉCU The European Independent Film Festival Ecuador 's country code Eighth Creative Union of MEPhI ,
99-489: The functions expected from that particular module. Automotive ECU's are being developed following the V-model. Recently the trend is to dedicate a significant amount of time and effort to develop safe modules by following standards like ISO 26262 . It is rare that a module is developed fully from scratch. The design is generally iterative and improvements are made to both the hardware and software. The development of most ECUs
110-415: The link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=ECU&oldid=1160017710 " Categories : Disambiguation pages Educational institution disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages ECU From Misplaced Pages,
121-487: The link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=ECU&oldid=1160017710 " Categories : Disambiguation pages Educational institution disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Electronic control unit Modern vehicles have many ECUs, and these can include some or all of
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