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Noise, vibration, and harshness (NVH), also known as noise and vibration (N&V), is the study and modification of the noise and vibration characteristics of vehicles, particularly cars and trucks. While noise and vibration can be readily measured, harshness is a subjective quality, and is measured either via jury evaluations, or with analytical ...
The Fleet Management Systems Interface (FMS) is a standard interface to vehicle data of commercial vehicles. The six European manufacturers Daimler AG , MAN AG , Scania , Volvo (including Renault), DAF Trucks and IVECO developed the so-called FMS-Standard in 2002 to make manufacturer-independent applications for telematics possible.
Roadway noise is the collective sound energy emanating from motor vehicles. It consists chiefly of road surface, tire, engine/transmission, aerodynamic, and braking elements. Noise of rolling tires driving on pavement is found to be the biggest contributor of highway noise and increases with higher vehicle speeds. [1] [2] [3]
IVHM examines the vehicle health against the vehicle usage data and within the context of similar information for other vehicles within the fleet. In use vehicles display unique usage characteristics and also some characteristics common across the fleet. Where usage data and system health data is available these can be analysed to identify ...
Active noise cancelling (ANC) is a software process that uses existing in-vehicle infotainment hardware to eliminate undesirable noise within the interior of a vehicle. This elimination technique is known as harmonic order reduction, where unwanted audio signals are identified by sensors and filtered out of the overall interior vehicle sound. [ 3 ]
The main function of fleet management software is to accumulate, store, process, monitor, report on and export information. Information can be imported from external sources such as gas pump processors, territorial authorities for managing vehicle registration (for example DVLA and VOSA), financial institutions, insurance databases, vehicle specification databases, mapping systems and from ...
Highly developed fleet management and vehicle telematics systems collect a full range of data in real-time and for transport and fleet managers. By combining received data from the vehicle tracking system and the on-board computer, it is possible to form a profile for any given driver (average speed, frequency of detours, breaks, severity of ...
Tetra Tech, Inc. was founded in 1966 as Water Management Group of Tetra Tech Inc., [2] by four individuals in Pasadena, California, to provide engineering services to waterways, harbors, and coastal areas. [3] The company has increased its size and scope of business substantially through internal growth and strategic acquisitions. [4]