摘要:
There is proposed a test wheel arrangement (1) for testing a motor vehicle while the tires are stationary, which test wheel arrangement (1) has a shaft section (5) which can be attached to a wheel hub (7) of a motor vehicle and on which a test wheel (3) is mounted to be freely rotatable.
摘要:
There is proposed a test wheel arrangement (1) for testing a motor vehicle while the tyres are stationary, which test wheel arrangement (1) has a shaft section (5) which can be attached to a wheel hub (7) of a motor vehicle and on which a test wheel (3) is mounted to be freely rotatable.
摘要:
In order to improve a noise emission or noise emission which is caused by a vehicle, according to the invention the instantaneous load (L) of the vehicle (F) is determined with a method for controlling and/or regulating a load (L) of a vehicle (F) by means of a pickup unit (6, 6A to 6C) with reference to at least one operating variable (B) of the vehicle (F), the operating variable (B) being controlled and/or regulated by means of a control unit or regulator unit (2) as a function of a noise level (G(G), G(F), G(U)) resulting from the instantaneous load (L) of the vehicle (F).
摘要:
This invention involves an internal combustion engine for a motor vehicle with a lubricant pump to transport a fluid, almost incompressible lubricant, especially a motor oil, as well as a lubricant guide element (1b) to guide the lubricant to the lubrication points of the internal combustion engine.In the internal combustion engine of the invention an elastic, flexible dampening element (2b) to accept pressure pulsations in the lubricant is associated with the lubricant guide element (1b). A dampening element (2b), for example, can have a bypass resonator with a calmed lubricant reservoir (4b).Use, for example, is in passenger motor vehicles.
摘要:
For a reliable identification of noise sources generating noise or sound signals, according to the invention, in a method for determining a noise signal (S) of a noise source (10), the noise signal (S) is detected and analyzed on the basis of signal properties, the noise signal (S) being compared with noise patterns (M) and being assigned to a noise source type (T) on the basis of the comparison.
摘要:
A method and apparatus for the determination of a stationary and/or moving object, such as a vehicle, acoustic signals emitted by the object and/or reflected by another object are recorded and used to evaluate or identify an object. The object is detected, evaluated and identified acoustically with the aid of noises from it and/or extraneous noises, with respect to its own movement profile in relation to one or more coordinate axes (x, y axes), in the manner of a self-localization based on sound waves.
摘要:
A method and apparatus for the determination of a stationary and/or moving object, such as a vehicle, acoustic signals emitted by the object and/or reflected by another object are recorded and used to evaluate or identify an object. The object is detected, evaluated and identified acoustically with the aid of noises from it and/or extraneous noises, with respect to its own movement profile in relation to one or more coordinate axes (x, y axes), in the manner of a self-localization based on sound waves.