About 107 results
https://drivepatents.com/patents/1078737 · 6 Apr 2005
The control circuit comprises: - a direct voltage source (1); - a chopper circuit (2) arranged between the source (1) and an electric actuator (3); and - an electronic control circuit (4) designed to apply to the chopper circuit (2) a command signal (CS) o...
https://drivepatents.com/patents/1081441 · 22 Dec 2004
A fuel injection control apparatus and fuel injection method for injecting suitable fuel with quick response to required fuel injection amounts varying with every moment, while improving the energy efficiency, and enabling support for electromagnetic fuel ...
https://drivepatents.com/patents/1082796 · 3 Nov 2004
A device for driving an injector (2) in an internal combustion engine (3) in which a current wave (Iinj) which is variable over time, which comprises an initial section (T1, T2, T3) substantially of a pulse type and having a relatively high current intensi...
https://drivepatents.com/patents/1084546 · 25 Aug 2004
Process for adjusting the duration of the minimum electrical pulse MDPi for controlling the opening of a fuel injector in each cylinder i of a diesel engine under at least a predetermined pressure P. The control unit of the engine sends to the injector a s...
https://drivepatents.com/patents/1085115 · 4 Aug 2004
During a short duration injection, a triangular geometry is drawn in terms of the injection rate with respect to time, while a trapezoidal geometry is drawn during a long duration injection. The ON timing of the drive pulse is determined to be at a valve o...
https://drivepatents.com/patents/1086746 · 9 Jun 2004
A drive circuit (100) of an electromagnetic system fuel injection apparatus comprises a valve seat (4), a valve body (3, 16) for performing an opening and a closing of a fuel passage between said valve seat, at least two coils (11, 12), and a drive means (...
https://drivepatents.com/patents/1086882 · 2 Jun 2004
In a solenoid driving device of the type in which energy stored in a capacitor is used for re-driving of the solenoid, the generation of heat in the current back-flow preventing circuit that prevents the back-flow of current to the power supply terminal is...
https://drivepatents.com/patents/1088025 · 14 Apr 2004
The invention relates to a fuel supply system comprising a means for detecting operating condition of an engine (1), a means for calculating the width of the fuel injection pulse including valve-opening signal and holding signal based on the detected opera...
https://drivepatents.com/patents/1089051 · 10 Mar 2004
The invention relates to a fuel injection valve (13) driving method by means of a fuel supply pressure detector (21) involves various types of delay including a response lag of the fuel supply pressure detector (21), a lag produced by a noise filter of a s...
https://drivepatents.com/patents/1088992 · 10 Mar 2004
A measure of electrical energy (QZ) supplied to the injector, a heat transfer factor (KW) and a measure of the fuel temperature (TD) are employed to calculate a measure of the injector temperature (TA). An Independent claim is included for corresponding co...