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Topic: Electronic control unit

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	Electronic control unit - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-11-07)
		An electronic control unit (ECU) (also known as an engine management system) is an electronic device, basically a computer, in an internal combustion engine that reads several sensors in the engine and uses the information to control the fuel injection and ignition systems of the engine.
		Because the ECU is dealing with actual measured engine performance from millisecond to millisecond, it can compensate for many variables that traditional systems cannot, such as ambient temperature, humidity, altitude (air density), fuel octane rating, as well as the demands made on it by the driver.
		Earlier ECU designs were based more on analogue computer circuitry, due to the fact that for analogue circuits processing speed is not an issue.
	www.peekskill.us /project/wikipedia/index.php/Electronic_control_unit (695 words)

	Electronic control unit -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-07)
		Because the ECU is dealing with actual measured engine performance from millisecond to millisecond, it can compensate for many variables that traditional systems cannot, such as ambient temperature, humidity, altitude (air (The amount per unit size) density), fuel octane rating, as well as the demands made on it by the driver.
		Modern ECUs use a (Integrated circuit semiconductor chip that performs the bulk of the processing and controls the parts of a system) microprocessor which can process the inputs from the engine sensors in ((computer science) the time it takes for a process under computer control to occur) real time.
		Earlier ECU designs were based more on (A computer that represents information by variable quantities (e.g., positions or voltages)) analogue computer circuitry, due to the fact that for analogue circuits processing speed is not an issue.
	www.absoluteastronomy.com /encyclopedia/e/el/electronic_control_unit.htm (825 words)

	Electronic control unit (Site not responding. Last check: 2007-11-07)
		An Electronic Control Unit or ECU (also known as an "engine management system") is an electronic device, basically a computer, in an internal combustion engine that reads several sensor s in the engine and uses the information to control the fuel injection and ignition systems of the engine.
		Earlier ECU designs were based more on analogue computer circuitry, due to the fact that processing speed there is not an issue; it was not until around 1987 that digital electronics and embedded microprocessor systems became fast enough to process engine parameters in real time.
		Control Electronic Security International security services including design and installation of electronic burglar alarms, gates, perimeter control, tire shredders, X-ray scanners, and exit tag controls, established 1970.
	www.serebella.com /encyclopedia/article-Electronic_control_unit.html (926 words)

	World Intellectual Property Organization (Site not responding. Last check: 2007-11-07)
		Electronic throttle control, electronic fuel injection, tire pressure management, and ABS brakes are just a few of the many examples of the use of electronic control systems in vehicles.
		The ECU controls operation of a component of the vehicle responsive to the strain indicative signals generated by the strain sensors of the sensor assemblies.
		The control system of claim 1, further comprising a steering angle sensor that generates a steering angle indicative signal, said electronic control unit controlling operation of said component responsive to said strain indicative signals and said steering angle indicative signal.
	www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=03/72376.030904&ELEMENT_SET=DECL (2551 words)

	VP44 Electronic Inj Pump
		An electronic controller converts the fuel information sent from the ECU into mechanical control of the fuel delivery by opening and closing fuel spill ports inside the pump mechanism.
		Also, the electronic control unit is divided into two, with a compact control unit mounted directly on the pump and a larger Engine Control Module mounted on the engine block.
		A cam ring with three plungers, a rotor, and an electronically controlled fueling solenoid valve is used to develop and distribute the high pressure required for injection.
	www.dodgeram.org /tech/dsl/ISB/Vp44.htm (1538 words)

	Vehicular electronic control system, and electronic control unit, program, and storing member for the same - US Patent ... (Site not responding. Last check: 2007-11-07)
		The vehicular electronic control system according to claim 1, wherein the detecting means detects a target address to which data on the communication line is transmitted, and determines whether a content of the data is the vehicle identifying information only when the target address is an address of the external scan tool.
		The electronic control unit according to claim 10, wherein the detecting means detects a target address to which data on the communication line is transmitted, and determines whether a content of the data is the vehicle identifying information only when the target address is an address of the external scan tool.
		The electronic control unit according to claim 10, wherein the timing means stops timing when another electronic control unit has started transmitting the vehicle identifying information and starts timing an elapsed time since the other electronic control unit has terminated the transmission in a case that the vehicle identifying information is not successfully transmitted.
	www.patentstorm.us /patents/6799106.html (9257 words)

	Method for establishing link between vehicle-mounted electronic control unit and testing device - Patent 4831868
		Such electronic control devices are directly related to the control of the driving conditions of the vehicle and thus have a great influence on the safety of passengers' lives.
		The electronic control unit further includes circuits 5to 5d for driving various kinds of actuators including solenoids 7.sub.1 -7.sub.3 and 7.sub.1 '-7.sub.3 ' as pressure control valves in a hydraulic brake circuit, a motor relay 7b for a motor for a hydraulic unit, a failsafe relay 7c and a warning lamp 7d.
		The control unit is in turn connected to an output port 6d through an output processing circuit 6c for the adjustment of the output level.
	www.freepatentsonline.com /4831868.html (2915 words)

	Electronic control unit for the Instant Start System (ISS) for diesel engines
		The main function blocks of the control unit are a microprocessor for controlling all the functions, MOSFET power semiconductor for activating and deactivating the individual glow plugs, an electrical interface for communication with the engine control and an internal voltage supply for the microprocessor and the interface.
		For connecting the control unit Beru, in conjunction with vehicle manufacturers and producers of plug-in connectors, has developed a two-part connector system for the on-board power connection (terminal 30) and the other connections.
		The control unit housing consists of a metallic base plate, a plastic frame with two connectors and a cover.
	www.beru.com /english/aktuelles/presse/20020415-PI129.php (515 words)

	Method of monitoring a network of peripheral elements handled by an electronic control unit - Patent 4045622
		A method for avoiding interference with the "logic" section of an electronic central control unit by the voltages manipulated in a network of peripheral elements, for instance in a telephone switching system, is provided.
		Accordingly, it is advisable to isolate the feed voltages of the network and the central unit from one another whilst at the same time enabling the central unit to monitor the momentary position of the elements of the network to be handled by the central control unit.
		The elements of the complex to be controlled are capable of being in two different states which may be called "1" and "0" characterising for example their state of connection or disconnection.
	www.freepatentsonline.com /4045622.html (2346 words)

	[No title]
		The importance of controller is increasing particularly in automobile industry, and 90% of today's automotive innovations are made in the electronic field, primarily electronic control unit (ECU).
		The MATLAB controller model should be validated by the real-time operation in conjunction with actual plant like a robot and a vehicle, which allows a user to know if the controller works properly in real world.
		Control algorithm developers, controller designers, ECU code developers and calibration engineers in the automotive industry, control engineers who design embedded system, students and academic researchers who are interested in the controller implemented on embedded system.
	home.hiroshima-u.ac.jp /pros/jusfa02/jusfa_tutorial_B.htm (1140 words)

	Electronic Control Unit MARS 2 - USER GUIDE
		Electronic control unit MARS is designed for position control of DC motors (up to the amount of three) with incremental sensors of position increment and one index mark per one motor revolve.
		In case of encasing the electronic control unit, the input of the joystick is wired to the female DB9 Canon connector.
		To the control unit, a transfer connector is supplied to use standard connectors DB9 or DB25.
	cmp.felk.cvut.cz /~pisa/mars/mars_man_en.html (2670 words)

	Electronic Fuel Injection Guide To Components
		The Electronic Control Unit is activated by the vehicle battery when the ignition switch is turned to the ON position.
		The throttle valves, which are controlled by the accelerator pedal, control the air flow to the intake manifold for driving.
		The signals are continuously computed, and controlled electrical pulses are transmitted to the injectors to precisely control the fuel being injected into the cylinder.
	www.cosworthvega.com /cvoa/ECU_guide.htm (604 words)

	Electronic Control Unit (Site not responding. Last check: 2007-11-07)
		One way to find it is to follow the fuel injection wiring harness as all wires lead to the control unit (terminating in a large plug on the unit).
		The ECU processes all the inputs from the various sensors on board and uses that information to determine the optimum amount of fuel to be injected, which it controls by varying the amount of time the fuel injectors are open.
		The ECU should only be assumed faulty if absolutely everything else in the ignition system, fuel system, and fuel injection system has proven to be working properly.
	www.type2.com /bartnik/ecu.htm (170 words)

	TENS Electronic Pain Control Unit
		A chart and written directions on where and how to use the unit and where to place the electrode pads for various symptoms and ailments.
		It is a small medical device slightly larger than a beeper that attaches to your pants or belt and helps alleviate pain while you wear it.
		T.E.N.S. units have been dispensed by doctors to their patients for years as a drug free alternative for pain relief.
	www.backsport.com /memory/tens.htm (443 words)

	U.S. Pregrant 20020040620 - Automatic transmission with electronic control unit (Site not responding. Last check: 2007-11-07)
		In an electronic control unit, a transmission control module for controlling an automatic transmission and a position sensor for detecting the range position of the automatic transmission are built in a common unit case.
		A first member and a second member to be fitted at the time of mounting the electronic control unit on an automatic transmission case are directed in the mounting direction when mounted on the automatic transmission case, and a third member is mounted on those two members.
		When the electronic control unit is mounted on the automatic transmission case, therefore, the clearance on the mounting path inbetween absorbs the positional deviation between the first member and the second member thereby to facilitate the mounting work.
	cxp.paterra.com /uspregrant20020040620.html (244 words)

	ECM Electronic Control Module - ECU Electronic Control Unit Facts
		ECM / ECU life expectancy is typically 3 to 5 years of normal operation.
		Higher than normal failure rates have been documented, for ECUs / ECMs that came installed in vehicles that were manufactured between 1989 through 1994...
		The symptoms of a failing 'Electronic Control Unit' / 'Electronic Control Module' can be anything from sudden 'no-starts,' to the 'check engine' light going on, and/or 'idling' problems.
	www.ecm-ecu-online.com /facts.html (285 words)

	Brakes: ABS (Site not responding. Last check: 2007-11-07)
		When you apply the brake pedal, the electronic control unit monitors and compares the signals from the wheel-speed sensors.
		If the electronic control unit senses rapid deceleration (impending lock-up) at a given wheel, the electronic control unit commands the hydraulic control unit to reduce hydraulic pressure to that wheel.
		This type of ABS system controls only the rear wheels and limits pressure to both of them when either is about to lock.
	www.carcarecouncil.org /Brakes/abs.shtml (397 words)

	How to read trouble code on your 240sx electronic control unit (Site not responding. Last check: 2007-11-07)
		In a few word, reading to code require accessing to the ECU, placing the unit in self diagnosis mode using a screw driver and looking at the flashing lamps on the unit to see what code is displayed.
		Unscrew the unit and turn it 180 degree on the vertical axis without unpluggin it.
		The red lamp correspond to units of ten and the green lamp to units of one.
	www.240sx.org /faq/articles/ecmcodes.htm (497 words)

	Electronic Stability Control (ESC) Coalition \| How ESC Works \| Definitions (Site not responding. Last check: 2007-11-07)
		Electronic Stability Control is a closed-loop stability-control system that relies on proven ABS (Antilock Brake System) and TCS (Traction Control System) components.
		It incorporates sensors for determining vehicle parameters as well as an ECU (Electronic Control Unit) to modulate braking and traction forces.
		Electronic Control Unit (ECU) – the microcomputer that processes and interprets information from each sensor and then generates the necessary activation commands to control brake pressure and engine torque.
	www.dinkaboy.com /about_esc/how_esc_works/definitions.html (198 words)

	[No title] (Site not responding. Last check: 2007-11-07)
		A control for a hydrostatic transmission having a swashplate and connecting an engine to a pair of wheels on a vehicle, wherein said engine has an engine speed, said wheels rotate to cause a rotation, and said vehicle is operating at varying speeds, the control comprising:
		an electronic control unit that receives the commanded engine speed, brake position, and vehicle speed and sets a swashplate position, wherein the swashplate position is determined by the commanded engine speed and brake position when the vehicle is accelerating and by the vehicle speed and brake position when the vehicle is decelerating;
		means for sensing the speed of the engine; wherein the vehicle engine has an engine load and the electronic control unit further receives the engine speed and uses the engine speed, commanded engine speed, and vehicle speed to determine the engine load.
	www.uspto.gov /web/patents/patog/week06/OG/html/1291-2/US06852064-20050208.html (268 words)

	Electronic Control Unit (ECU) Development and Testing - Vector CANtech (Site not responding. Last check: 2007-11-07)
		Development and Testing of electronic control unit (ECU) software is provided by Vector and supported by many products and services.
		OSEK operating system, CAN (Controller Area Network) or LIN (Local Interconnect Network) busses software components, flash Bootloaders for ECU reprogramming, tools for modeling, configuration and analysis, as well as support services to configure, integrate, troubleshoot through validation are all offered to assist in the development of an ECU.
		The diagram shows all the high level parts of an ECU that communicates on a bus and the tools and services that Vector provides to support the development lifecycle of such an ECU.
	www.vector-cantech.com /products/ecu.html (574 words)

	Electronic thermostat control unit and its use in multipoint temperature controller for refrigeration and heating ...
		Electronic thermostat control unit and its use in multipoint temperature controller for refrigeration and heating systems (EP0927919B1)
		Electronic thermostat control unit and its use in multipoint temperature controller for refrigeration and heating systems
		This invention further relates to the application of the said electronic digital thermostat in a multipoint temperature controller for Refrigeration and Heating systems, using a plurality of the said electronic thermostat control units with a logic circuit, Central Control Unit, System Timers, and a Starting Relay circuit to provide application-specific functions.
	www.delphion.com /details?&pn=EP00927919B1 (305 words)

	Electronic Active Mixture control Unit :: Engines :: eRCMarket
		The Webra electronic mixture control unit enables the user to set up a 5-point throttle curve, designed to match the fuel mixture automatically and accurately to the motor's characteristics.
		The electronic mixture control unit is initially taught the travel of the transmitter throttle stick, to allow the system's characteristics to be exploited to the full.
		It is also possible to adjust the fuel mixture when the model is in flight: an auxiliary transmitter channel (preferably a slider) is used to offset the entire curve upwards (= richer) or downwards (= leaner).
	ercmarket.com /eshop/catalog/Electronic-Active-Mixture-control-Unit-p-684.html (109 words)

	ECM Electronic Control Module - ECU Electronic Control Unit - Japanese Imported Cars Pickup Trucks Minivans SUVs
		Sunrise Foreign Auto Dismantling stocks rebuilt / remanufactured ECUs - ECMs, for all makes and models of Japanese cars, trucks and vans, including vehicles that were manufactured as part of joint ventures between Japanese and American automobile companies.
		The ECU - Electronic Control Unit or ECM - Electronic Control Module, also know as the automobile's ‘Fuel Computer’ or ‘Brain Box,’ is an electronic computer that regulates the amount of fuel that your vehicle’s injectors release into the intake manifold.
		Recognized as a very expensive item, you can now replace your failed ECU / ECM with a remanufactured / rebuilt unit, at a fraction of the cost of a new one, without sacrificing quality or reliability.
	www.sunfor.com /ecm_ecu.html (383 words)

	(Mauser H., Thurner E.) Electronic Throttle Control A Dependability Case Study (Site not responding. Last check: 2007-11-07)
		Abstract: The so-called Electronic Throttle Control unit was a big step towards reducing important parameters like fuel consumption or exhaust emmission.
		The study was based on the existing safety concept, but after this study, a slightly changed system architecture of the ECU was proposed to VDA (Verband der Automobilindustrie), which enhances availability and safety of the ECU significantly, at about the same cost.
		In this paper, the questions raised by the Electronic Throttle Control system are described, together with our way to solve these problems.
	www.jucs.org /jucs_5_10/electronic_throttle_control_a (199 words)

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