About 28 results
https://drivepatents.com/patents/993821 · 16 Jan 2013
The method (10) involves monitoring a measured and calculated machine parameter during the operation of a machine. The machine is closed on a machine state change, particularly on a critical operating condition, if the monitored machine parameter reaches a...
https://drivepatents.com/patents/993777 · 16 Jan 2013
A malfunction detection device for an engine detects whether a pressure reducing valve (6) that discharges fuel from a fuel system of an engine to reduce fuel pressure in the fuel system is stuck closed. The malfunction detection device is configured to pr...
https://drivepatents.com/patents/1010295 · 10 Aug 2011
A method of monitoring a device, the method comprising: measuring one or more device operating parameters and a device performance parameter during one or more device operational periods; recording a plurality of data points, each data point comprising the...
https://drivepatents.com/patents/1016100 · 2 Feb 2011
To reliably detect, without adding new parts, injection abnormality not only when fuel injection is not performed but also including fuel injection in a state where the injection quantity has fallen abnormally low. In a state where a flow rate control valv...
https://drivepatents.com/patents/1069848 · 22 Feb 2006
A diagnostic data collection unit (10) that collects diagnostic data of a vehicle is connected to electronic control units (11) and (12) for the vehicle through a CAN, and includes a specifying device for measurement items that specifies the measurement it...
https://drivepatents.com/patents/1072806 · 2 Nov 2005
The diesel engine has electronic modules (10) and a control system (1) with an inter modular communication bus arranged between them for transferring information. The bus system has a connection point (150) for replacement modules (100) to be attached. The...
https://drivepatents.com/patents/1074077 · 14 Sep 2005
Controlling means (6) of a fuel injection system (1) regulates an energization amount of an electric motor (3) in accordance with a sensing signal outputted from common rail pressure sensing means (8). Thus, the controlling means (6) controls a fuel supply...
https://drivepatents.com/patents/1077556 · 25 May 2005
The fault diagnosis process is used on a control device (5) for an internal combustion engine (14). When the fault symptom (1) develops, the reason to the fault is reported, and the diagnosis manager (3) normally switches off the faulty control device comp...
https://drivepatents.com/patents/1077772 · 18 May 2005
An electronic control unit (30) for determining knocking in an internal combustion engine (11) having an intake injector (22) for injecting fuel into an air intake port (20) and an in-cylinder injector (17) for directly injecting fuel into a combustion cha...
https://drivepatents.com/patents/1077775 · 18 May 2005
An internal combustion engine includes an in-cylinder injection valve and an intake port injection valve. An ECU controls the fuel injection valves in a fuel injection mode that corresponds to an operational state of the engine. When deterioration of the c...