This pressure is monitored by a pressure sensor and the difference between the nominal rail pressure value and the measured one is the input signal for the controller. The pump maintains the rail pressure by continuously delivering fuel to the common rail. Production common rail fuel systems are equipped with a closed-loop high pressure control-system that stabilizes the rail pressure within a relatively small margin to the nominal value specified by the electronic control unit for a given engine operating condition. Some practical common rail implementations utilize both approaches with the control strategy depending on the engine operating conditions. A variety of fuel metering can be used for the later. A more preferred approach is to meter the fuel at the high pressure pump in order to minimize the amount of fuel pressurized to the rail pressure. One early approach method was to supply more fuel than is needed to the common rail and use a pressure control valve to spill the excess fuel back to the fuel tank. A space can be used, or omitted between the abbreviation and number.Abstract: There are several approaches to control the pressure in the common rail. When searching for a standard please use the entire Document Number assigned, which includes the abbreviation. Conducting a search for "heat model" will return all results in which the exact phrase "heat model" is found, while "heat modeling" would NOT be included.Ī term combined with a phrase will be joined with an OR operator. Words in double quotes " " are treated as a phrase. For example, searching for t?re would match both tire and tyre Using Quotes Using the question mark, ( ? ) allows you to search for a word with a single character wildcard. For example, entering a keyword search of aero* will search for any word beginning with aero. Using the asterisk, ( * ) allows you to search for a partial word. SAE MOBILUS supports the use of the AND, OR and NOT BOOLEAN operators ONLY function with the Advanced Search. This means that your search results will contain all results that contain ANY of the entered terms. Please note: All terms not contained within quotes, will be evaluated using the OR operator. “New High Speed Current Controlled Amplifier for PZT Multilayer Stack Actuators,” 8th International Conference on New Actuators Bremen 11-12 June 2002 “Driving Circuit in Diesel Common Rail System” KSAE03-F0060 3ĭörlemann, C. et al “Improving the Linearity of Piezoelectric Actuators,” Electronic Letters 18 442 444Ĭhun, D. “Semiconductor Solutions for Piezo Injector System,” SAE Paper 10 2003Īn American National Standard: IEEE Standard on Piezoelectricity ANSI/IEEE Standard 1 “Application of Piezo ceramic Multilayer Actuators, Experiences and Solutions 7th International Conference on New Actuators Bremen 2000Ĭordes S. “Characteristic Analysis of Multi-Layer Piezo-Ceramic Actuator (Part II),” Proceedings of the IEEE IE1576 3 1993īindig R. “Fundamentals of piezoelectricity,” Oxford University Press 1999 “A piezoelectric driven ratchet actuator mechanism with application to automotive engine valves,” MECHATRONICS 9 “Piezoelectric Technology Primer,” CTS Wireless Components “Development of a Programmable Driver for Solenoid-type 2-way-valve Common-rail Injectors,” IPC13 Kyeongju, Korea 2005 “A Common Rail Injection System For High Speed Direct Injection Diesel Engines,” SAE paper 980803 “Potential of Common Rail Injection System for Passenger Car DI Diesel Engines,” SAE paper 44
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