A vehicle computer system (e.g., on-board vehicle computer system) obtains a fuel economy performance goal for a vehicle (e.g., an engine speed goal or a vehicle speed goal) that is based on a configuration of the vehicle; calculates a count of events in which a current value exceeds the goal; compares the count of events with a threshold count; and generates one or more notifications based at least in part on the comparison (e.g., for display on an operator interface). The vehicle computer system also calculates an engine speed and a vehicle speed score for a driver of the vehicle based at least in part on comparisons of current speeds with the speed goals. Scoring and other data may be displayed or stored for further processing.

The present invention relates to a gas heat pump system. A gas heat pump system according to one embodiment of the present invention comprises: a compressor for compressing a refrigerant; a gas engine for driving the compressor; a mixer for mixing air and fuel to generate a mixed gas to be supplied to the gas engine; a mixed gas supply line connected between the mixer and the gas engine; and a supercharger for supercharging the mixed gas supplied to the gas engine through the mixed gas supply line, wherein the supercharger comprises a sealed housing formed by sealing the remaining parts thereof other than an inlet port and an outlet port through which the mixed gas moves into and out of the housing, and a bypass line is provided between the sealed housing and the inlet port of the supercharger so as to resupply a mixed gas in the sealed housing to the inlet port of the supercharger. Therefore, the system can prevent a safety-related accident resulting from the leakage of the mixed gas out of the supplier and can reduce the amount of fuel consumption.

A mounting system for retrofitting a vibration sensor to a machine component is provided. The mounting system includes an elongate fastener, a washer, and a mounting boss. The elongate fastener includes a fastener head and an elongated body defining a longitudinal top end and a longitudinal bottom end. The longitudinal bottom end defines a fastening end configured to engage with a corresponding fastening receptacle of the machine component. The washer defines an external surface and includes a central cavity for engaging the elongated body of the elongate fastener therein. The mounting boss includes a first portion and a second portion. The first portion includes an internal cavity defining a first cavity section configured to engage with the external surface of the washer, and a second cavity section to engage with the fastener head of the elongate fastener. The second portion defines a receiving port for receiving the vibration sensor.

A mounting system for retrofitting a vibration sensor to a machine component is provided. The mounting system includes an elongate fastener, a washer, and a mounting boss. The elongate fastener includes a fastener head and an elongated body defining a longitudinal top end and a longitudinal bottom end. The longitudinal bottom end defines a fastening end configured to engage with a corresponding fastening receptacle of the machine component. The washer defines an external surface and includes a central cavity for engaging the elongated body of the elongate fastener therein. The mounting boss includes a first portion and a second portion. The first portion includes an internal cavity defining a first cavity section configured to engage with the external surface of the washer, and a second cavity section to engage with the fastener head of the elongate fastener. The second portion defines a receiving port for receiving the vibration sensor.

A generator includes an internal combustion engine, a proximity sensor structured to detect a distance value indicative of a distance between the generator and an object, and a controller. The controller is configured to receive a first distance value from the proximity sensor corresponding to the distance between the generator and the object. Upon determining that the first distance value is less than a predetermined minimum distance value, the controller is configured to initiate an alarm. The controller is further configured to receive a second distance value from the proximity sensor corresponding to the distance between the generator and the object. Upon determining that the second distance is less than the predetermined minimum distance value, the controller is configured to initiate a shutdown of the generator.

A generator includes an internal combustion engine, a proximity sensor structured to detect a distance value indicative of a distance between the generator and an object, and a controller. The controller is configured to receive a first distance value from the proximity sensor corresponding to the distance between the generator and the object. Upon determining that the first distance value is less than a predetermined minimum distance value, the controller is configured to initiate an alarm. The controller is further configured to receive a second distance value from the proximity sensor corresponding to the distance between the generator and the object. Upon determining that the second distance is less than the predetermined minimum distance value, the controller is configured to initiate a shutdown of the generator.

The present disclosure belongs to the field of dual-fuel engine combustion systems, in particular to a dual-fuel intelligent combustion system and a control method thereof. The dual-fuel intelligent combustion system comprises a cylinder body, a cylinder cover, a piston, a methanol fuel injector, a diesel injector and ECUs (electronic control units), wherein the cylinder body, the cylinder cover and the piston form a combustion chamber, the cylinder cover is arranged right above the cylinder body, the piston is arranged in the cylinder body, the combustion chamber is provided with an air inlet channel and an air outlet channel, the combustion chamber is internally provided with the methanol fuel injector for injecting alcohol fuel into a cylinder and the diesel injector for injecting ignition fuel diesel into the cylinder, and the methanol fuel injector and the diesel injector are respectively controlled by the two ECUs.

The present disclosure belongs to the field of dual-fuel engine combustion systems, in particular to a dual-fuel intelligent combustion system and a control method thereof. The dual-fuel intelligent combustion system comprises a cylinder body, a cylinder cover, a piston, a methanol fuel injector, a diesel injector and ECUs (electronic control units), wherein the cylinder body, the cylinder cover and the piston form a combustion chamber, the cylinder cover is arranged right above the cylinder body, the piston is arranged in the cylinder body, the combustion chamber is provided with an air inlet channel and an air outlet channel, the combustion chamber is internally provided with the methanol fuel injector for injecting alcohol fuel into a cylinder and the diesel injector for injecting ignition fuel diesel into the cylinder, and the methanol fuel injector and the diesel injector are respectively controlled by the two ECUs.

An air monitoring system measures tan amount of pollutant in the air. The system includes a plurality of air quality sensor devices arranged within a selected area. Each of the air quality sensor devices is configured to measure air pollutant levels in the selected area, and includes at least one sensor operatively coupled to a controller, wherein the controller is configured to receive a measured input from the at least one sensor. A wireless communication device is coupled to the controller, and is configured to communicate with a central server device.

A method for adjusting a valve lash in an internal combustion engine includes receiving a first signal generated by a sensor secured to the internal combustion engine, the first signal being indicative of a closing of a valve, receiving a second signal indicative of at least one of an engine speed of the internal combustion engine or a position of a camshaft of the internal combustion engine, and automatically determining an adjusted amount of lash associated with the valve based on the received first signal and the received second signal. The method also includes comparing the adjusted amount of lash to at least one predetermined threshold, and providing, in response to determining that the adjusted amount of lash is greater than the at least one predetermined threshold, a valve lash re-adjustment notification.